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      1 /*
      2  * Copyright (C) 2006 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.content;
     18 
     19 import android.content.pm.ApplicationInfo;
     20 import android.provider.MediaStore;
     21 import android.util.ArraySet;
     22 
     23 import org.xmlpull.v1.XmlPullParser;
     24 import org.xmlpull.v1.XmlPullParserException;
     25 
     26 import android.annotation.IntDef;
     27 import android.annotation.SdkConstant;
     28 import android.annotation.SystemApi;
     29 import android.annotation.SdkConstant.SdkConstantType;
     30 import android.content.pm.ActivityInfo;
     31 
     32 import static android.content.ContentProvider.maybeAddUserId;
     33 
     34 import android.content.pm.PackageManager;
     35 import android.content.pm.ResolveInfo;
     36 import android.content.res.Resources;
     37 import android.content.res.TypedArray;
     38 import android.graphics.Rect;
     39 import android.net.Uri;
     40 import android.os.Bundle;
     41 import android.os.IBinder;
     42 import android.os.Parcel;
     43 import android.os.Parcelable;
     44 import android.os.Process;
     45 import android.os.StrictMode;
     46 import android.os.UserHandle;
     47 import android.provider.DocumentsContract;
     48 import android.provider.DocumentsProvider;
     49 import android.provider.OpenableColumns;
     50 import android.util.AttributeSet;
     51 import android.util.Log;
     52 
     53 import com.android.internal.util.XmlUtils;
     54 
     55 import org.xmlpull.v1.XmlSerializer;
     56 
     57 import java.io.IOException;
     58 import java.io.Serializable;
     59 import java.lang.annotation.Retention;
     60 import java.lang.annotation.RetentionPolicy;
     61 import java.net.URISyntaxException;
     62 import java.util.ArrayList;
     63 import java.util.List;
     64 import java.util.Locale;
     65 import java.util.Objects;
     66 import java.util.Set;
     67 
     68 /**
     69  * An intent is an abstract description of an operation to be performed.  It
     70  * can be used with {@link Context#startActivity(Intent) startActivity} to
     71  * launch an {@link android.app.Activity},
     72  * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
     73  * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
     74  * and {@link android.content.Context#startService} or
     75  * {@link android.content.Context#bindService} to communicate with a
     76  * background {@link android.app.Service}.
     77  *
     78  * <p>An Intent provides a facility for performing late runtime binding between the code in
     79  * different applications. Its most significant use is in the launching of activities, where it
     80  * can be thought of as the glue between activities. It is basically a passive data structure
     81  * holding an abstract description of an action to be performed.</p>
     82  *
     83  * <div class="special reference">
     84  * <h3>Developer Guides</h3>
     85  * <p>For information about how to create and resolve intents, read the
     86  * <a href="{@docRoot}guide/topics/intents/intents-filters.html">Intents and Intent Filters</a>
     87  * developer guide.</p>
     88  * </div>
     89  *
     90  * <a name="IntentStructure"></a>
     91  * <h3>Intent Structure</h3>
     92  * <p>The primary pieces of information in an intent are:</p>
     93  *
     94  * <ul>
     95  *   <li> <p><b>action</b> -- The general action to be performed, such as
     96  *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
     97  *     etc.</p>
     98  *   </li>
     99  *   <li> <p><b>data</b> -- The data to operate on, such as a person record
    100  *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
    101  *   </li>
    102  * </ul>
    103  *
    104  *
    105  * <p>Some examples of action/data pairs are:</p>
    106  *
    107  * <ul>
    108  *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
    109  *     information about the person whose identifier is "1".</p>
    110  *   </li>
    111  *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
    112  *     the phone dialer with the person filled in.</p>
    113  *   </li>
    114  *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
    115  *     the phone dialer with the given number filled in.  Note how the
    116  *     VIEW action does what what is considered the most reasonable thing for
    117  *     a particular URI.</p>
    118  *   </li>
    119  *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
    120  *     the phone dialer with the given number filled in.</p>
    121  *   </li>
    122  *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
    123  *     information about the person whose identifier is "1".</p>
    124  *   </li>
    125  *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
    126  *     a list of people, which the user can browse through.  This example is a
    127  *     typical top-level entry into the Contacts application, showing you the
    128  *     list of people. Selecting a particular person to view would result in a
    129  *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
    130  *     being used to start an activity to display that person.</p>
    131  *   </li>
    132  * </ul>
    133  *
    134  * <p>In addition to these primary attributes, there are a number of secondary
    135  * attributes that you can also include with an intent:</p>
    136  *
    137  * <ul>
    138  *     <li> <p><b>category</b> -- Gives additional information about the action
    139  *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
    140  *         appear in the Launcher as a top-level application, while
    141  *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
    142  *         of alternative actions the user can perform on a piece of data.</p>
    143  *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
    144  *         intent data.  Normally the type is inferred from the data itself.
    145  *         By setting this attribute, you disable that evaluation and force
    146  *         an explicit type.</p>
    147  *     <li> <p><b>component</b> -- Specifies an explicit name of a component
    148  *         class to use for the intent.  Normally this is determined by looking
    149  *         at the other information in the intent (the action, data/type, and
    150  *         categories) and matching that with a component that can handle it.
    151  *         If this attribute is set then none of the evaluation is performed,
    152  *         and this component is used exactly as is.  By specifying this attribute,
    153  *         all of the other Intent attributes become optional.</p>
    154  *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
    155  *         This can be used to provide extended information to the component.
    156  *         For example, if we have a action to send an e-mail message, we could
    157  *         also include extra pieces of data here to supply a subject, body,
    158  *         etc.</p>
    159  * </ul>
    160  *
    161  * <p>Here are some examples of other operations you can specify as intents
    162  * using these additional parameters:</p>
    163  *
    164  * <ul>
    165  *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
    166  *     Launch the home screen.</p>
    167  *   </li>
    168  *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
    169  *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
    170  *     vnd.android.cursor.item/phone}</i></b>
    171  *     -- Display the list of people's phone numbers, allowing the user to
    172  *     browse through them and pick one and return it to the parent activity.</p>
    173  *   </li>
    174  *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
    175  *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
    176  *     -- Display all pickers for data that can be opened with
    177  *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
    178  *     allowing the user to pick one of them and then some data inside of it
    179  *     and returning the resulting URI to the caller.  This can be used,
    180  *     for example, in an e-mail application to allow the user to pick some
    181  *     data to include as an attachment.</p>
    182  *   </li>
    183  * </ul>
    184  *
    185  * <p>There are a variety of standard Intent action and category constants
    186  * defined in the Intent class, but applications can also define their own.
    187  * These strings use java style scoping, to ensure they are unique -- for
    188  * example, the standard {@link #ACTION_VIEW} is called
    189  * "android.intent.action.VIEW".</p>
    190  *
    191  * <p>Put together, the set of actions, data types, categories, and extra data
    192  * defines a language for the system allowing for the expression of phrases
    193  * such as "call john smith's cell".  As applications are added to the system,
    194  * they can extend this language by adding new actions, types, and categories, or
    195  * they can modify the behavior of existing phrases by supplying their own
    196  * activities that handle them.</p>
    197  *
    198  * <a name="IntentResolution"></a>
    199  * <h3>Intent Resolution</h3>
    200  *
    201  * <p>There are two primary forms of intents you will use.
    202  *
    203  * <ul>
    204  *     <li> <p><b>Explicit Intents</b> have specified a component (via
    205  *     {@link #setComponent} or {@link #setClass}), which provides the exact
    206  *     class to be run.  Often these will not include any other information,
    207  *     simply being a way for an application to launch various internal
    208  *     activities it has as the user interacts with the application.
    209  *
    210  *     <li> <p><b>Implicit Intents</b> have not specified a component;
    211  *     instead, they must include enough information for the system to
    212  *     determine which of the available components is best to run for that
    213  *     intent.
    214  * </ul>
    215  *
    216  * <p>When using implicit intents, given such an arbitrary intent we need to
    217  * know what to do with it. This is handled by the process of <em>Intent
    218  * resolution</em>, which maps an Intent to an {@link android.app.Activity},
    219  * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
    220  * more activities/receivers) that can handle it.</p>
    221  *
    222  * <p>The intent resolution mechanism basically revolves around matching an
    223  * Intent against all of the &lt;intent-filter&gt; descriptions in the
    224  * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
    225  * objects explicitly registered with {@link Context#registerReceiver}.)  More
    226  * details on this can be found in the documentation on the {@link
    227  * IntentFilter} class.</p>
    228  *
    229  * <p>There are three pieces of information in the Intent that are used for
    230  * resolution: the action, type, and category.  Using this information, a query
    231  * is done on the {@link PackageManager} for a component that can handle the
    232  * intent. The appropriate component is determined based on the intent
    233  * information supplied in the <code>AndroidManifest.xml</code> file as
    234  * follows:</p>
    235  *
    236  * <ul>
    237  *     <li> <p>The <b>action</b>, if given, must be listed by the component as
    238  *         one it handles.</p>
    239  *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
    240  *         already supplied in the Intent.  Like the action, if a type is
    241  *         included in the intent (either explicitly or implicitly in its
    242  *         data), then this must be listed by the component as one it handles.</p>
    243  *     <li> For data that is not a <code>content:</code> URI and where no explicit
    244  *         type is included in the Intent, instead the <b>scheme</b> of the
    245  *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
    246  *         considered. Again like the action, if we are matching a scheme it
    247  *         must be listed by the component as one it can handle.
    248  *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
    249  *         by the activity as categories it handles.  That is, if you include
    250  *         the categories {@link #CATEGORY_LAUNCHER} and
    251  *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
    252  *         with an intent that lists <em>both</em> of those categories.
    253  *         Activities will very often need to support the
    254  *         {@link #CATEGORY_DEFAULT} so that they can be found by
    255  *         {@link Context#startActivity Context.startActivity()}.</p>
    256  * </ul>
    257  *
    258  * <p>For example, consider the Note Pad sample application that
    259  * allows user to browse through a list of notes data and view details about
    260  * individual items.  Text in italics indicate places were you would replace a
    261  * name with one specific to your own package.</p>
    262  *
    263  * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
    264  *       package="<i>com.android.notepad</i>"&gt;
    265  *     &lt;application android:icon="@drawable/app_notes"
    266  *             android:label="@string/app_name"&gt;
    267  *
    268  *         &lt;provider class=".NotePadProvider"
    269  *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
    270  *
    271  *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
    272  *             &lt;intent-filter&gt;
    273  *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
    274  *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
    275  *             &lt;/intent-filter&gt;
    276  *             &lt;intent-filter&gt;
    277  *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
    278  *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
    279  *                 &lt;action android:name="android.intent.action.PICK" /&gt;
    280  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    281  *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    282  *             &lt;/intent-filter&gt;
    283  *             &lt;intent-filter&gt;
    284  *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
    285  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    286  *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    287  *             &lt;/intent-filter&gt;
    288  *         &lt;/activity&gt;
    289  *
    290  *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
    291  *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
    292  *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
    293  *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
    294  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    295  *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    296  *             &lt;/intent-filter&gt;
    297  *
    298  *             &lt;intent-filter&gt;
    299  *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
    300  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    301  *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    302  *             &lt;/intent-filter&gt;
    303  *
    304  *         &lt;/activity&gt;
    305  *
    306  *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
    307  *                 android:theme="@android:style/Theme.Dialog"&gt;
    308  *             &lt;intent-filter android:label="@string/resolve_title"&gt;
    309  *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
    310  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    311  *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
    312  *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
    313  *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    314  *             &lt;/intent-filter&gt;
    315  *         &lt;/activity&gt;
    316  *
    317  *     &lt;/application&gt;
    318  * &lt;/manifest&gt;</pre>
    319  *
    320  * <p>The first activity,
    321  * <code>com.android.notepad.NotesList</code>, serves as our main
    322  * entry into the app.  It can do three things as described by its three intent
    323  * templates:
    324  * <ol>
    325  * <li><pre>
    326  * &lt;intent-filter&gt;
    327  *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
    328  *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
    329  * &lt;/intent-filter&gt;</pre>
    330  * <p>This provides a top-level entry into the NotePad application: the standard
    331  * MAIN action is a main entry point (not requiring any other information in
    332  * the Intent), and the LAUNCHER category says that this entry point should be
    333  * listed in the application launcher.</p>
    334  * <li><pre>
    335  * &lt;intent-filter&gt;
    336  *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
    337  *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
    338  *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
    339  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    340  *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    341  * &lt;/intent-filter&gt;</pre>
    342  * <p>This declares the things that the activity can do on a directory of
    343  * notes.  The type being supported is given with the &lt;type&gt; tag, where
    344  * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
    345  * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
    346  * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
    347  * The activity allows the user to view or edit the directory of data (via
    348  * the VIEW and EDIT actions), or to pick a particular note and return it
    349  * to the caller (via the PICK action).  Note also the DEFAULT category
    350  * supplied here: this is <em>required</em> for the
    351  * {@link Context#startActivity Context.startActivity} method to resolve your
    352  * activity when its component name is not explicitly specified.</p>
    353  * <li><pre>
    354  * &lt;intent-filter&gt;
    355  *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
    356  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    357  *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    358  * &lt;/intent-filter&gt;</pre>
    359  * <p>This filter describes the ability return to the caller a note selected by
    360  * the user without needing to know where it came from.  The data type
    361  * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
    362  * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
    363  * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
    364  * The GET_CONTENT action is similar to the PICK action, where the activity
    365  * will return to its caller a piece of data selected by the user.  Here,
    366  * however, the caller specifies the type of data they desire instead of
    367  * the type of data the user will be picking from.</p>
    368  * </ol>
    369  *
    370  * <p>Given these capabilities, the following intents will resolve to the
    371  * NotesList activity:</p>
    372  *
    373  * <ul>
    374  *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
    375  *         activities that can be used as top-level entry points into an
    376  *         application.</p>
    377  *     <li> <p><b>{ action=android.app.action.MAIN,
    378  *         category=android.app.category.LAUNCHER }</b> is the actual intent
    379  *         used by the Launcher to populate its top-level list.</p>
    380  *     <li> <p><b>{ action=android.intent.action.VIEW
    381  *          data=content://com.google.provider.NotePad/notes }</b>
    382  *         displays a list of all the notes under
    383  *         "content://com.google.provider.NotePad/notes", which
    384  *         the user can browse through and see the details on.</p>
    385  *     <li> <p><b>{ action=android.app.action.PICK
    386  *          data=content://com.google.provider.NotePad/notes }</b>
    387  *         provides a list of the notes under
    388  *         "content://com.google.provider.NotePad/notes", from which
    389  *         the user can pick a note whose data URL is returned back to the caller.</p>
    390  *     <li> <p><b>{ action=android.app.action.GET_CONTENT
    391  *          type=vnd.android.cursor.item/vnd.google.note }</b>
    392  *         is similar to the pick action, but allows the caller to specify the
    393  *         kind of data they want back so that the system can find the appropriate
    394  *         activity to pick something of that data type.</p>
    395  * </ul>
    396  *
    397  * <p>The second activity,
    398  * <code>com.android.notepad.NoteEditor</code>, shows the user a single
    399  * note entry and allows them to edit it.  It can do two things as described
    400  * by its two intent templates:
    401  * <ol>
    402  * <li><pre>
    403  * &lt;intent-filter android:label="@string/resolve_edit"&gt;
    404  *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
    405  *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
    406  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    407  *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    408  * &lt;/intent-filter&gt;</pre>
    409  * <p>The first, primary, purpose of this activity is to let the user interact
    410  * with a single note, as decribed by the MIME type
    411  * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
    412  * either VIEW a note or allow the user to EDIT it.  Again we support the
    413  * DEFAULT category to allow the activity to be launched without explicitly
    414  * specifying its component.</p>
    415  * <li><pre>
    416  * &lt;intent-filter&gt;
    417  *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
    418  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    419  *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    420  * &lt;/intent-filter&gt;</pre>
    421  * <p>The secondary use of this activity is to insert a new note entry into
    422  * an existing directory of notes.  This is used when the user creates a new
    423  * note: the INSERT action is executed on the directory of notes, causing
    424  * this activity to run and have the user create the new note data which
    425  * it then adds to the content provider.</p>
    426  * </ol>
    427  *
    428  * <p>Given these capabilities, the following intents will resolve to the
    429  * NoteEditor activity:</p>
    430  *
    431  * <ul>
    432  *     <li> <p><b>{ action=android.intent.action.VIEW
    433  *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
    434  *         shows the user the content of note <var>{ID}</var>.</p>
    435  *     <li> <p><b>{ action=android.app.action.EDIT
    436  *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
    437  *         allows the user to edit the content of note <var>{ID}</var>.</p>
    438  *     <li> <p><b>{ action=android.app.action.INSERT
    439  *          data=content://com.google.provider.NotePad/notes }</b>
    440  *         creates a new, empty note in the notes list at
    441  *         "content://com.google.provider.NotePad/notes"
    442  *         and allows the user to edit it.  If they keep their changes, the URI
    443  *         of the newly created note is returned to the caller.</p>
    444  * </ul>
    445  *
    446  * <p>The last activity,
    447  * <code>com.android.notepad.TitleEditor</code>, allows the user to
    448  * edit the title of a note.  This could be implemented as a class that the
    449  * application directly invokes (by explicitly setting its component in
    450  * the Intent), but here we show a way you can publish alternative
    451  * operations on existing data:</p>
    452  *
    453  * <pre>
    454  * &lt;intent-filter android:label="@string/resolve_title"&gt;
    455  *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
    456  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    457  *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
    458  *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
    459  *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    460  * &lt;/intent-filter&gt;</pre>
    461  *
    462  * <p>In the single intent template here, we
    463  * have created our own private action called
    464  * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
    465  * edit the title of a note.  It must be invoked on a specific note
    466  * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
    467  * view and edit actions, but here displays and edits the title contained
    468  * in the note data.
    469  *
    470  * <p>In addition to supporting the default category as usual, our title editor
    471  * also supports two other standard categories: ALTERNATIVE and
    472  * SELECTED_ALTERNATIVE.  Implementing
    473  * these categories allows others to find the special action it provides
    474  * without directly knowing about it, through the
    475  * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
    476  * more often to build dynamic menu items with
    477  * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
    478  * template here was also supply an explicit name for the template
    479  * (via <code>android:label="@string/resolve_title"</code>) to better control
    480  * what the user sees when presented with this activity as an alternative
    481  * action to the data they are viewing.
    482  *
    483  * <p>Given these capabilities, the following intent will resolve to the
    484  * TitleEditor activity:</p>
    485  *
    486  * <ul>
    487  *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
    488  *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
    489  *         displays and allows the user to edit the title associated
    490  *         with note <var>{ID}</var>.</p>
    491  * </ul>
    492  *
    493  * <h3>Standard Activity Actions</h3>
    494  *
    495  * <p>These are the current standard actions that Intent defines for launching
    496  * activities (usually through {@link Context#startActivity}.  The most
    497  * important, and by far most frequently used, are {@link #ACTION_MAIN} and
    498  * {@link #ACTION_EDIT}.
    499  *
    500  * <ul>
    501  *     <li> {@link #ACTION_MAIN}
    502  *     <li> {@link #ACTION_VIEW}
    503  *     <li> {@link #ACTION_ATTACH_DATA}
    504  *     <li> {@link #ACTION_EDIT}
    505  *     <li> {@link #ACTION_PICK}
    506  *     <li> {@link #ACTION_CHOOSER}
    507  *     <li> {@link #ACTION_GET_CONTENT}
    508  *     <li> {@link #ACTION_DIAL}
    509  *     <li> {@link #ACTION_CALL}
    510  *     <li> {@link #ACTION_SEND}
    511  *     <li> {@link #ACTION_SENDTO}
    512  *     <li> {@link #ACTION_ANSWER}
    513  *     <li> {@link #ACTION_INSERT}
    514  *     <li> {@link #ACTION_DELETE}
    515  *     <li> {@link #ACTION_RUN}
    516  *     <li> {@link #ACTION_SYNC}
    517  *     <li> {@link #ACTION_PICK_ACTIVITY}
    518  *     <li> {@link #ACTION_SEARCH}
    519  *     <li> {@link #ACTION_WEB_SEARCH}
    520  *     <li> {@link #ACTION_FACTORY_TEST}
    521  * </ul>
    522  *
    523  * <h3>Standard Broadcast Actions</h3>
    524  *
    525  * <p>These are the current standard actions that Intent defines for receiving
    526  * broadcasts (usually through {@link Context#registerReceiver} or a
    527  * &lt;receiver&gt; tag in a manifest).
    528  *
    529  * <ul>
    530  *     <li> {@link #ACTION_TIME_TICK}
    531  *     <li> {@link #ACTION_TIME_CHANGED}
    532  *     <li> {@link #ACTION_TIMEZONE_CHANGED}
    533  *     <li> {@link #ACTION_BOOT_COMPLETED}
    534  *     <li> {@link #ACTION_PACKAGE_ADDED}
    535  *     <li> {@link #ACTION_PACKAGE_CHANGED}
    536  *     <li> {@link #ACTION_PACKAGE_REMOVED}
    537  *     <li> {@link #ACTION_PACKAGE_RESTARTED}
    538  *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
    539  *     <li> {@link #ACTION_UID_REMOVED}
    540  *     <li> {@link #ACTION_BATTERY_CHANGED}
    541  *     <li> {@link #ACTION_POWER_CONNECTED}
    542  *     <li> {@link #ACTION_POWER_DISCONNECTED}
    543  *     <li> {@link #ACTION_SHUTDOWN}
    544  * </ul>
    545  *
    546  * <h3>Standard Categories</h3>
    547  *
    548  * <p>These are the current standard categories that can be used to further
    549  * clarify an Intent via {@link #addCategory}.
    550  *
    551  * <ul>
    552  *     <li> {@link #CATEGORY_DEFAULT}
    553  *     <li> {@link #CATEGORY_BROWSABLE}
    554  *     <li> {@link #CATEGORY_TAB}
    555  *     <li> {@link #CATEGORY_ALTERNATIVE}
    556  *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
    557  *     <li> {@link #CATEGORY_LAUNCHER}
    558  *     <li> {@link #CATEGORY_INFO}
    559  *     <li> {@link #CATEGORY_HOME}
    560  *     <li> {@link #CATEGORY_PREFERENCE}
    561  *     <li> {@link #CATEGORY_TEST}
    562  *     <li> {@link #CATEGORY_CAR_DOCK}
    563  *     <li> {@link #CATEGORY_DESK_DOCK}
    564  *     <li> {@link #CATEGORY_LE_DESK_DOCK}
    565  *     <li> {@link #CATEGORY_HE_DESK_DOCK}
    566  *     <li> {@link #CATEGORY_CAR_MODE}
    567  *     <li> {@link #CATEGORY_APP_MARKET}
    568  * </ul>
    569  *
    570  * <h3>Standard Extra Data</h3>
    571  *
    572  * <p>These are the current standard fields that can be used as extra data via
    573  * {@link #putExtra}.
    574  *
    575  * <ul>
    576  *     <li> {@link #EXTRA_ALARM_COUNT}
    577  *     <li> {@link #EXTRA_BCC}
    578  *     <li> {@link #EXTRA_CC}
    579  *     <li> {@link #EXTRA_CHANGED_COMPONENT_NAME}
    580  *     <li> {@link #EXTRA_DATA_REMOVED}
    581  *     <li> {@link #EXTRA_DOCK_STATE}
    582  *     <li> {@link #EXTRA_DOCK_STATE_HE_DESK}
    583  *     <li> {@link #EXTRA_DOCK_STATE_LE_DESK}
    584  *     <li> {@link #EXTRA_DOCK_STATE_CAR}
    585  *     <li> {@link #EXTRA_DOCK_STATE_DESK}
    586  *     <li> {@link #EXTRA_DOCK_STATE_UNDOCKED}
    587  *     <li> {@link #EXTRA_DONT_KILL_APP}
    588  *     <li> {@link #EXTRA_EMAIL}
    589  *     <li> {@link #EXTRA_INITIAL_INTENTS}
    590  *     <li> {@link #EXTRA_INTENT}
    591  *     <li> {@link #EXTRA_KEY_EVENT}
    592  *     <li> {@link #EXTRA_ORIGINATING_URI}
    593  *     <li> {@link #EXTRA_PHONE_NUMBER}
    594  *     <li> {@link #EXTRA_REFERRER}
    595  *     <li> {@link #EXTRA_REMOTE_INTENT_TOKEN}
    596  *     <li> {@link #EXTRA_REPLACING}
    597  *     <li> {@link #EXTRA_SHORTCUT_ICON}
    598  *     <li> {@link #EXTRA_SHORTCUT_ICON_RESOURCE}
    599  *     <li> {@link #EXTRA_SHORTCUT_INTENT}
    600  *     <li> {@link #EXTRA_STREAM}
    601  *     <li> {@link #EXTRA_SHORTCUT_NAME}
    602  *     <li> {@link #EXTRA_SUBJECT}
    603  *     <li> {@link #EXTRA_TEMPLATE}
    604  *     <li> {@link #EXTRA_TEXT}
    605  *     <li> {@link #EXTRA_TITLE}
    606  *     <li> {@link #EXTRA_UID}
    607  * </ul>
    608  *
    609  * <h3>Flags</h3>
    610  *
    611  * <p>These are the possible flags that can be used in the Intent via
    612  * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
    613  * of all possible flags.
    614  */
    615 public class Intent implements Parcelable, Cloneable {
    616     private static final String ATTR_ACTION = "action";
    617     private static final String TAG_CATEGORIES = "categories";
    618     private static final String ATTR_CATEGORY = "category";
    619     private static final String TAG_EXTRA = "extra";
    620     private static final String ATTR_TYPE = "type";
    621     private static final String ATTR_COMPONENT = "component";
    622     private static final String ATTR_DATA = "data";
    623     private static final String ATTR_FLAGS = "flags";
    624 
    625     // ---------------------------------------------------------------------
    626     // ---------------------------------------------------------------------
    627     // Standard intent activity actions (see action variable).
    628 
    629     /**
    630      *  Activity Action: Start as a main entry point, does not expect to
    631      *  receive data.
    632      *  <p>Input: nothing
    633      *  <p>Output: nothing
    634      */
    635     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    636     public static final String ACTION_MAIN = "android.intent.action.MAIN";
    637 
    638     /**
    639      * Activity Action: Display the data to the user.  This is the most common
    640      * action performed on data -- it is the generic action you can use on
    641      * a piece of data to get the most reasonable thing to occur.  For example,
    642      * when used on a contacts entry it will view the entry; when used on a
    643      * mailto: URI it will bring up a compose window filled with the information
    644      * supplied by the URI; when used with a tel: URI it will invoke the
    645      * dialer.
    646      * <p>Input: {@link #getData} is URI from which to retrieve data.
    647      * <p>Output: nothing.
    648      */
    649     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    650     public static final String ACTION_VIEW = "android.intent.action.VIEW";
    651 
    652     /**
    653      * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
    654      * performed on a piece of data.
    655      */
    656     public static final String ACTION_DEFAULT = ACTION_VIEW;
    657 
    658     /**
    659      * Used to indicate that some piece of data should be attached to some other
    660      * place.  For example, image data could be attached to a contact.  It is up
    661      * to the recipient to decide where the data should be attached; the intent
    662      * does not specify the ultimate destination.
    663      * <p>Input: {@link #getData} is URI of data to be attached.
    664      * <p>Output: nothing.
    665      */
    666     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    667     public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
    668 
    669     /**
    670      * Activity Action: Provide explicit editable access to the given data.
    671      * <p>Input: {@link #getData} is URI of data to be edited.
    672      * <p>Output: nothing.
    673      */
    674     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    675     public static final String ACTION_EDIT = "android.intent.action.EDIT";
    676 
    677     /**
    678      * Activity Action: Pick an existing item, or insert a new item, and then edit it.
    679      * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
    680      * The extras can contain type specific data to pass through to the editing/creating
    681      * activity.
    682      * <p>Output: The URI of the item that was picked.  This must be a content:
    683      * URI so that any receiver can access it.
    684      */
    685     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    686     public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
    687 
    688     /**
    689      * Activity Action: Pick an item from the data, returning what was selected.
    690      * <p>Input: {@link #getData} is URI containing a directory of data
    691      * (vnd.android.cursor.dir/*) from which to pick an item.
    692      * <p>Output: The URI of the item that was picked.
    693      */
    694     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    695     public static final String ACTION_PICK = "android.intent.action.PICK";
    696 
    697     /**
    698      * Activity Action: Creates a shortcut.
    699      * <p>Input: Nothing.</p>
    700      * <p>Output: An Intent representing the shortcut. The intent must contain three
    701      * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
    702      * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
    703      * (value: ShortcutIconResource).</p>
    704      *
    705      * @see #EXTRA_SHORTCUT_INTENT
    706      * @see #EXTRA_SHORTCUT_NAME
    707      * @see #EXTRA_SHORTCUT_ICON
    708      * @see #EXTRA_SHORTCUT_ICON_RESOURCE
    709      * @see android.content.Intent.ShortcutIconResource
    710      */
    711     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    712     public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
    713 
    714     /**
    715      * The name of the extra used to define the Intent of a shortcut.
    716      *
    717      * @see #ACTION_CREATE_SHORTCUT
    718      */
    719     public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
    720     /**
    721      * The name of the extra used to define the name of a shortcut.
    722      *
    723      * @see #ACTION_CREATE_SHORTCUT
    724      */
    725     public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
    726     /**
    727      * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
    728      *
    729      * @see #ACTION_CREATE_SHORTCUT
    730      */
    731     public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
    732     /**
    733      * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
    734      *
    735      * @see #ACTION_CREATE_SHORTCUT
    736      * @see android.content.Intent.ShortcutIconResource
    737      */
    738     public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
    739             "android.intent.extra.shortcut.ICON_RESOURCE";
    740 
    741     /**
    742      * Represents a shortcut/live folder icon resource.
    743      *
    744      * @see Intent#ACTION_CREATE_SHORTCUT
    745      * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
    746      * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
    747      * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
    748      */
    749     public static class ShortcutIconResource implements Parcelable {
    750         /**
    751          * The package name of the application containing the icon.
    752          */
    753         public String packageName;
    754 
    755         /**
    756          * The resource name of the icon, including package, name and type.
    757          */
    758         public String resourceName;
    759 
    760         /**
    761          * Creates a new ShortcutIconResource for the specified context and resource
    762          * identifier.
    763          *
    764          * @param context The context of the application.
    765          * @param resourceId The resource idenfitier for the icon.
    766          * @return A new ShortcutIconResource with the specified's context package name
    767          *         and icon resource idenfitier.
    768          */
    769         public static ShortcutIconResource fromContext(Context context, int resourceId) {
    770             ShortcutIconResource icon = new ShortcutIconResource();
    771             icon.packageName = context.getPackageName();
    772             icon.resourceName = context.getResources().getResourceName(resourceId);
    773             return icon;
    774         }
    775 
    776         /**
    777          * Used to read a ShortcutIconResource from a Parcel.
    778          */
    779         public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
    780             new Parcelable.Creator<ShortcutIconResource>() {
    781 
    782                 public ShortcutIconResource createFromParcel(Parcel source) {
    783                     ShortcutIconResource icon = new ShortcutIconResource();
    784                     icon.packageName = source.readString();
    785                     icon.resourceName = source.readString();
    786                     return icon;
    787                 }
    788 
    789                 public ShortcutIconResource[] newArray(int size) {
    790                     return new ShortcutIconResource[size];
    791                 }
    792             };
    793 
    794         /**
    795          * No special parcel contents.
    796          */
    797         public int describeContents() {
    798             return 0;
    799         }
    800 
    801         public void writeToParcel(Parcel dest, int flags) {
    802             dest.writeString(packageName);
    803             dest.writeString(resourceName);
    804         }
    805 
    806         @Override
    807         public String toString() {
    808             return resourceName;
    809         }
    810     }
    811 
    812     /**
    813      * Activity Action: Display an activity chooser, allowing the user to pick
    814      * what they want to before proceeding.  This can be used as an alternative
    815      * to the standard activity picker that is displayed by the system when
    816      * you try to start an activity with multiple possible matches, with these
    817      * differences in behavior:
    818      * <ul>
    819      * <li>You can specify the title that will appear in the activity chooser.
    820      * <li>The user does not have the option to make one of the matching
    821      * activities a preferred activity, and all possible activities will
    822      * always be shown even if one of them is currently marked as the
    823      * preferred activity.
    824      * </ul>
    825      * <p>
    826      * This action should be used when the user will naturally expect to
    827      * select an activity in order to proceed.  An example if when not to use
    828      * it is when the user clicks on a "mailto:" link.  They would naturally
    829      * expect to go directly to their mail app, so startActivity() should be
    830      * called directly: it will
    831      * either launch the current preferred app, or put up a dialog allowing the
    832      * user to pick an app to use and optionally marking that as preferred.
    833      * <p>
    834      * In contrast, if the user is selecting a menu item to send a picture
    835      * they are viewing to someone else, there are many different things they
    836      * may want to do at this point: send it through e-mail, upload it to a
    837      * web service, etc.  In this case the CHOOSER action should be used, to
    838      * always present to the user a list of the things they can do, with a
    839      * nice title given by the caller such as "Send this photo with:".
    840      * <p>
    841      * If you need to grant URI permissions through a chooser, you must specify
    842      * the permissions to be granted on the ACTION_CHOOSER Intent
    843      * <em>in addition</em> to the EXTRA_INTENT inside.  This means using
    844      * {@link #setClipData} to specify the URIs to be granted as well as
    845      * {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or
    846      * {@link #FLAG_GRANT_WRITE_URI_PERMISSION} as appropriate.
    847      * <p>
    848      * As a convenience, an Intent of this form can be created with the
    849      * {@link #createChooser} function.
    850      * <p>
    851      * Input: No data should be specified.  get*Extra must have
    852      * a {@link #EXTRA_INTENT} field containing the Intent being executed,
    853      * and can optionally have a {@link #EXTRA_TITLE} field containing the
    854      * title text to display in the chooser.
    855      * <p>
    856      * Output: Depends on the protocol of {@link #EXTRA_INTENT}.
    857      */
    858     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    859     public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
    860 
    861     /**
    862      * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
    863      *
    864      * <p>Builds a new {@link #ACTION_CHOOSER} Intent that wraps the given
    865      * target intent, also optionally supplying a title.  If the target
    866      * intent has specified {@link #FLAG_GRANT_READ_URI_PERMISSION} or
    867      * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, then these flags will also be
    868      * set in the returned chooser intent, with its ClipData set appropriately:
    869      * either a direct reflection of {@link #getClipData()} if that is non-null,
    870      * or a new ClipData built from {@link #getData()}.
    871      *
    872      * @param target The Intent that the user will be selecting an activity
    873      * to perform.
    874      * @param title Optional title that will be displayed in the chooser.
    875      * @return Return a new Intent object that you can hand to
    876      * {@link Context#startActivity(Intent) Context.startActivity()} and
    877      * related methods.
    878      */
    879     public static Intent createChooser(Intent target, CharSequence title) {
    880         return createChooser(target, title, null);
    881     }
    882 
    883     /**
    884      * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
    885      *
    886      * <p>Builds a new {@link #ACTION_CHOOSER} Intent that wraps the given
    887      * target intent, also optionally supplying a title.  If the target
    888      * intent has specified {@link #FLAG_GRANT_READ_URI_PERMISSION} or
    889      * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, then these flags will also be
    890      * set in the returned chooser intent, with its ClipData set appropriately:
    891      * either a direct reflection of {@link #getClipData()} if that is non-null,
    892      * or a new ClipData built from {@link #getData()}.</p>
    893      *
    894      * <p>The caller may optionally supply an {@link IntentSender} to receive a callback
    895      * when the user makes a choice. This can be useful if the calling application wants
    896      * to remember the last chosen target and surface it as a more prominent or one-touch
    897      * affordance elsewhere in the UI for next time.</p>
    898      *
    899      * @param target The Intent that the user will be selecting an activity
    900      * to perform.
    901      * @param title Optional title that will be displayed in the chooser.
    902      * @param sender Optional IntentSender to be called when a choice is made.
    903      * @return Return a new Intent object that you can hand to
    904      * {@link Context#startActivity(Intent) Context.startActivity()} and
    905      * related methods.
    906      */
    907     public static Intent createChooser(Intent target, CharSequence title, IntentSender sender) {
    908         Intent intent = new Intent(ACTION_CHOOSER);
    909         intent.putExtra(EXTRA_INTENT, target);
    910         if (title != null) {
    911             intent.putExtra(EXTRA_TITLE, title);
    912         }
    913 
    914         if (sender != null) {
    915             intent.putExtra(EXTRA_CHOSEN_COMPONENT_INTENT_SENDER, sender);
    916         }
    917 
    918         // Migrate any clip data and flags from target.
    919         int permFlags = target.getFlags() & (FLAG_GRANT_READ_URI_PERMISSION
    920                 | FLAG_GRANT_WRITE_URI_PERMISSION | FLAG_GRANT_PERSISTABLE_URI_PERMISSION
    921                 | FLAG_GRANT_PREFIX_URI_PERMISSION);
    922         if (permFlags != 0) {
    923             ClipData targetClipData = target.getClipData();
    924             if (targetClipData == null && target.getData() != null) {
    925                 ClipData.Item item = new ClipData.Item(target.getData());
    926                 String[] mimeTypes;
    927                 if (target.getType() != null) {
    928                     mimeTypes = new String[] { target.getType() };
    929                 } else {
    930                     mimeTypes = new String[] { };
    931                 }
    932                 targetClipData = new ClipData(null, mimeTypes, item);
    933             }
    934             if (targetClipData != null) {
    935                 intent.setClipData(targetClipData);
    936                 intent.addFlags(permFlags);
    937             }
    938         }
    939 
    940         return intent;
    941     }
    942 
    943     /**
    944      * Activity Action: Allow the user to select a particular kind of data and
    945      * return it.  This is different than {@link #ACTION_PICK} in that here we
    946      * just say what kind of data is desired, not a URI of existing data from
    947      * which the user can pick.  An ACTION_GET_CONTENT could allow the user to
    948      * create the data as it runs (for example taking a picture or recording a
    949      * sound), let them browse over the web and download the desired data,
    950      * etc.
    951      * <p>
    952      * There are two main ways to use this action: if you want a specific kind
    953      * of data, such as a person contact, you set the MIME type to the kind of
    954      * data you want and launch it with {@link Context#startActivity(Intent)}.
    955      * The system will then launch the best application to select that kind
    956      * of data for you.
    957      * <p>
    958      * You may also be interested in any of a set of types of content the user
    959      * can pick.  For example, an e-mail application that wants to allow the
    960      * user to add an attachment to an e-mail message can use this action to
    961      * bring up a list of all of the types of content the user can attach.
    962      * <p>
    963      * In this case, you should wrap the GET_CONTENT intent with a chooser
    964      * (through {@link #createChooser}), which will give the proper interface
    965      * for the user to pick how to send your data and allow you to specify
    966      * a prompt indicating what they are doing.  You will usually specify a
    967      * broad MIME type (such as image/* or {@literal *}/*), resulting in a
    968      * broad range of content types the user can select from.
    969      * <p>
    970      * When using such a broad GET_CONTENT action, it is often desirable to
    971      * only pick from data that can be represented as a stream.  This is
    972      * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
    973      * <p>
    974      * Callers can optionally specify {@link #EXTRA_LOCAL_ONLY} to request that
    975      * the launched content chooser only returns results representing data that
    976      * is locally available on the device.  For example, if this extra is set
    977      * to true then an image picker should not show any pictures that are available
    978      * from a remote server but not already on the local device (thus requiring
    979      * they be downloaded when opened).
    980      * <p>
    981      * If the caller can handle multiple returned items (the user performing
    982      * multiple selection), then it can specify {@link #EXTRA_ALLOW_MULTIPLE}
    983      * to indicate this.
    984      * <p>
    985      * Input: {@link #getType} is the desired MIME type to retrieve.  Note
    986      * that no URI is supplied in the intent, as there are no constraints on
    987      * where the returned data originally comes from.  You may also include the
    988      * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
    989      * opened as a stream.  You may use {@link #EXTRA_LOCAL_ONLY} to limit content
    990      * selection to local data.  You may use {@link #EXTRA_ALLOW_MULTIPLE} to
    991      * allow the user to select multiple items.
    992      * <p>
    993      * Output: The URI of the item that was picked.  This must be a content:
    994      * URI so that any receiver can access it.
    995      */
    996     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    997     public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
    998     /**
    999      * Activity Action: Dial a number as specified by the data.  This shows a
   1000      * UI with the number being dialed, allowing the user to explicitly
   1001      * initiate the call.
   1002      * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
   1003      * is URI of a phone number to be dialed or a tel: URI of an explicit phone
   1004      * number.
   1005      * <p>Output: nothing.
   1006      */
   1007     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1008     public static final String ACTION_DIAL = "android.intent.action.DIAL";
   1009     /**
   1010      * Activity Action: Perform a call to someone specified by the data.
   1011      * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
   1012      * is URI of a phone number to be dialed or a tel: URI of an explicit phone
   1013      * number.
   1014      * <p>Output: nothing.
   1015      *
   1016      * <p>Note: there will be restrictions on which applications can initiate a
   1017      * call; most applications should use the {@link #ACTION_DIAL}.
   1018      * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
   1019      * numbers.  Applications can <strong>dial</strong> emergency numbers using
   1020      * {@link #ACTION_DIAL}, however.
   1021      */
   1022     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1023     public static final String ACTION_CALL = "android.intent.action.CALL";
   1024     /**
   1025      * Activity Action: Perform a call to an emergency number specified by the
   1026      * data.
   1027      * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
   1028      * tel: URI of an explicit phone number.
   1029      * <p>Output: nothing.
   1030      * @hide
   1031      */
   1032     public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
   1033     /**
   1034      * Activity action: Perform a call to any number (emergency or not)
   1035      * specified by the data.
   1036      * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
   1037      * tel: URI of an explicit phone number.
   1038      * <p>Output: nothing.
   1039      * @hide
   1040      */
   1041     public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
   1042     /**
   1043      * Activity Action: Send a message to someone specified by the data.
   1044      * <p>Input: {@link #getData} is URI describing the target.
   1045      * <p>Output: nothing.
   1046      */
   1047     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1048     public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
   1049     /**
   1050      * Activity Action: Deliver some data to someone else.  Who the data is
   1051      * being delivered to is not specified; it is up to the receiver of this
   1052      * action to ask the user where the data should be sent.
   1053      * <p>
   1054      * When launching a SEND intent, you should usually wrap it in a chooser
   1055      * (through {@link #createChooser}), which will give the proper interface
   1056      * for the user to pick how to send your data and allow you to specify
   1057      * a prompt indicating what they are doing.
   1058      * <p>
   1059      * Input: {@link #getType} is the MIME type of the data being sent.
   1060      * get*Extra can have either a {@link #EXTRA_TEXT}
   1061      * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
   1062      * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
   1063      * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
   1064      * if the MIME type is unknown (this will only allow senders that can
   1065      * handle generic data streams).  If using {@link #EXTRA_TEXT}, you can
   1066      * also optionally supply {@link #EXTRA_HTML_TEXT} for clients to retrieve
   1067      * your text with HTML formatting.
   1068      * <p>
   1069      * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data
   1070      * being sent can be supplied through {@link #setClipData(ClipData)}.  This
   1071      * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing
   1072      * content: URIs and other advanced features of {@link ClipData}.  If
   1073      * using this approach, you still must supply the same data through the
   1074      * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below
   1075      * for compatibility with old applications.  If you don't set a ClipData,
   1076      * it will be copied there for you when calling {@link Context#startActivity(Intent)}.
   1077      * <p>
   1078      * Optional standard extras, which may be interpreted by some recipients as
   1079      * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
   1080      * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
   1081      * <p>
   1082      * Output: nothing.
   1083      */
   1084     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1085     public static final String ACTION_SEND = "android.intent.action.SEND";
   1086     /**
   1087      * Activity Action: Deliver multiple data to someone else.
   1088      * <p>
   1089      * Like {@link #ACTION_SEND}, except the data is multiple.
   1090      * <p>
   1091      * Input: {@link #getType} is the MIME type of the data being sent.
   1092      * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
   1093      * #EXTRA_STREAM} field, containing the data to be sent.  If using
   1094      * {@link #EXTRA_TEXT}, you can also optionally supply {@link #EXTRA_HTML_TEXT}
   1095      * for clients to retrieve your text with HTML formatting.
   1096      * <p>
   1097      * Multiple types are supported, and receivers should handle mixed types
   1098      * whenever possible. The right way for the receiver to check them is to
   1099      * use the content resolver on each URI. The intent sender should try to
   1100      * put the most concrete mime type in the intent type, but it can fall
   1101      * back to {@literal <type>/*} or {@literal *}/* as needed.
   1102      * <p>
   1103      * e.g. if you are sending image/jpg and image/jpg, the intent's type can
   1104      * be image/jpg, but if you are sending image/jpg and image/png, then the
   1105      * intent's type should be image/*.
   1106      * <p>
   1107      * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data
   1108      * being sent can be supplied through {@link #setClipData(ClipData)}.  This
   1109      * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing
   1110      * content: URIs and other advanced features of {@link ClipData}.  If
   1111      * using this approach, you still must supply the same data through the
   1112      * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below
   1113      * for compatibility with old applications.  If you don't set a ClipData,
   1114      * it will be copied there for you when calling {@link Context#startActivity(Intent)}.
   1115      * <p>
   1116      * Optional standard extras, which may be interpreted by some recipients as
   1117      * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
   1118      * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
   1119      * <p>
   1120      * Output: nothing.
   1121      */
   1122     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1123     public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
   1124     /**
   1125      * Activity Action: Handle an incoming phone call.
   1126      * <p>Input: nothing.
   1127      * <p>Output: nothing.
   1128      */
   1129     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1130     public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
   1131     /**
   1132      * Activity Action: Insert an empty item into the given container.
   1133      * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
   1134      * in which to place the data.
   1135      * <p>Output: URI of the new data that was created.
   1136      */
   1137     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1138     public static final String ACTION_INSERT = "android.intent.action.INSERT";
   1139     /**
   1140      * Activity Action: Create a new item in the given container, initializing it
   1141      * from the current contents of the clipboard.
   1142      * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
   1143      * in which to place the data.
   1144      * <p>Output: URI of the new data that was created.
   1145      */
   1146     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1147     public static final String ACTION_PASTE = "android.intent.action.PASTE";
   1148     /**
   1149      * Activity Action: Delete the given data from its container.
   1150      * <p>Input: {@link #getData} is URI of data to be deleted.
   1151      * <p>Output: nothing.
   1152      */
   1153     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1154     public static final String ACTION_DELETE = "android.intent.action.DELETE";
   1155     /**
   1156      * Activity Action: Run the data, whatever that means.
   1157      * <p>Input: ?  (Note: this is currently specific to the test harness.)
   1158      * <p>Output: nothing.
   1159      */
   1160     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1161     public static final String ACTION_RUN = "android.intent.action.RUN";
   1162     /**
   1163      * Activity Action: Perform a data synchronization.
   1164      * <p>Input: ?
   1165      * <p>Output: ?
   1166      */
   1167     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1168     public static final String ACTION_SYNC = "android.intent.action.SYNC";
   1169     /**
   1170      * Activity Action: Pick an activity given an intent, returning the class
   1171      * selected.
   1172      * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
   1173      * used with {@link PackageManager#queryIntentActivities} to determine the
   1174      * set of activities from which to pick.
   1175      * <p>Output: Class name of the activity that was selected.
   1176      */
   1177     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1178     public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
   1179     /**
   1180      * Activity Action: Perform a search.
   1181      * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
   1182      * is the text to search for.  If empty, simply
   1183      * enter your search results Activity with the search UI activated.
   1184      * <p>Output: nothing.
   1185      */
   1186     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1187     public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
   1188     /**
   1189      * Activity Action: Start the platform-defined tutorial
   1190      * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
   1191      * is the text to search for.  If empty, simply
   1192      * enter your search results Activity with the search UI activated.
   1193      * <p>Output: nothing.
   1194      */
   1195     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1196     public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
   1197     /**
   1198      * Activity Action: Perform a web search.
   1199      * <p>
   1200      * Input: {@link android.app.SearchManager#QUERY
   1201      * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
   1202      * a url starts with http or https, the site will be opened. If it is plain
   1203      * text, Google search will be applied.
   1204      * <p>
   1205      * Output: nothing.
   1206      */
   1207     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1208     public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
   1209 
   1210     /**
   1211      * Activity Action: Perform assist action.
   1212      * <p>
   1213      * Input: {@link #EXTRA_ASSIST_PACKAGE}, {@link #EXTRA_ASSIST_CONTEXT}, can provide
   1214      * additional optional contextual information about where the user was when they
   1215      * requested the assist.
   1216      * Output: nothing.
   1217      */
   1218     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1219     public static final String ACTION_ASSIST = "android.intent.action.ASSIST";
   1220 
   1221     /**
   1222      * Activity Action: Perform voice assist action.
   1223      * <p>
   1224      * Input: {@link #EXTRA_ASSIST_PACKAGE}, {@link #EXTRA_ASSIST_CONTEXT}, can provide
   1225      * additional optional contextual information about where the user was when they
   1226      * requested the voice assist.
   1227      * Output: nothing.
   1228      * @hide
   1229      */
   1230     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1231     public static final String ACTION_VOICE_ASSIST = "android.intent.action.VOICE_ASSIST";
   1232 
   1233     /**
   1234      * An optional field on {@link #ACTION_ASSIST} containing the name of the current foreground
   1235      * application package at the time the assist was invoked.
   1236      */
   1237     public static final String EXTRA_ASSIST_PACKAGE
   1238             = "android.intent.extra.ASSIST_PACKAGE";
   1239 
   1240     /**
   1241      * An optional field on {@link #ACTION_ASSIST} and containing additional contextual
   1242      * information supplied by the current foreground app at the time of the assist request.
   1243      * This is a {@link Bundle} of additional data.
   1244      */
   1245     public static final String EXTRA_ASSIST_CONTEXT
   1246             = "android.intent.extra.ASSIST_CONTEXT";
   1247 
   1248     /**
   1249      * An optional field on {@link #ACTION_ASSIST} suggesting that the user will likely use a
   1250      * keyboard as the primary input device for assistance.
   1251      */
   1252     public static final String EXTRA_ASSIST_INPUT_HINT_KEYBOARD =
   1253             "android.intent.extra.ASSIST_INPUT_HINT_KEYBOARD";
   1254 
   1255     /**
   1256      * Activity Action: List all available applications
   1257      * <p>Input: Nothing.
   1258      * <p>Output: nothing.
   1259      */
   1260     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1261     public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
   1262     /**
   1263      * Activity Action: Show settings for choosing wallpaper
   1264      * <p>Input: Nothing.
   1265      * <p>Output: Nothing.
   1266      */
   1267     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1268     public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
   1269 
   1270     /**
   1271      * Activity Action: Show activity for reporting a bug.
   1272      * <p>Input: Nothing.
   1273      * <p>Output: Nothing.
   1274      */
   1275     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1276     public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
   1277 
   1278     /**
   1279      *  Activity Action: Main entry point for factory tests.  Only used when
   1280      *  the device is booting in factory test node.  The implementing package
   1281      *  must be installed in the system image.
   1282      *  <p>Input: nothing
   1283      *  <p>Output: nothing
   1284      */
   1285     public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
   1286 
   1287     /**
   1288      * Activity Action: The user pressed the "call" button to go to the dialer
   1289      * or other appropriate UI for placing a call.
   1290      * <p>Input: Nothing.
   1291      * <p>Output: Nothing.
   1292      */
   1293     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1294     public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
   1295 
   1296     /**
   1297      * Activity Action: Start Voice Command.
   1298      * <p>Input: Nothing.
   1299      * <p>Output: Nothing.
   1300      */
   1301     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1302     public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
   1303 
   1304     /**
   1305      * Activity Action: Start action associated with long pressing on the
   1306      * search key.
   1307      * <p>Input: Nothing.
   1308      * <p>Output: Nothing.
   1309      */
   1310     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1311     public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
   1312 
   1313     /**
   1314      * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
   1315      * This intent is delivered to the package which installed the application, usually
   1316      * Google Play.
   1317      * <p>Input: No data is specified. The bug report is passed in using
   1318      * an {@link #EXTRA_BUG_REPORT} field.
   1319      * <p>Output: Nothing.
   1320      *
   1321      * @see #EXTRA_BUG_REPORT
   1322      */
   1323     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1324     public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
   1325 
   1326     /**
   1327      * Activity Action: Show power usage information to the user.
   1328      * <p>Input: Nothing.
   1329      * <p>Output: Nothing.
   1330      */
   1331     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1332     public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
   1333 
   1334     /**
   1335      * Activity Action: Setup wizard to launch after a platform update.  This
   1336      * activity should have a string meta-data field associated with it,
   1337      * {@link #METADATA_SETUP_VERSION}, which defines the current version of
   1338      * the platform for setup.  The activity will be launched only if
   1339      * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
   1340      * same value.
   1341      * <p>Input: Nothing.
   1342      * <p>Output: Nothing.
   1343      * @hide
   1344      */
   1345     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1346     public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
   1347 
   1348     /**
   1349      * Activity Action: Show settings for managing network data usage of a
   1350      * specific application. Applications should define an activity that offers
   1351      * options to control data usage.
   1352      */
   1353     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1354     public static final String ACTION_MANAGE_NETWORK_USAGE =
   1355             "android.intent.action.MANAGE_NETWORK_USAGE";
   1356 
   1357     /**
   1358      * Activity Action: Launch application installer.
   1359      * <p>
   1360      * Input: The data must be a content: or file: URI at which the application
   1361      * can be retrieved.  As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1},
   1362      * you can also use "package:<package-name>" to install an application for the
   1363      * current user that is already installed for another user. You can optionally supply
   1364      * {@link #EXTRA_INSTALLER_PACKAGE_NAME}, {@link #EXTRA_NOT_UNKNOWN_SOURCE},
   1365      * {@link #EXTRA_ALLOW_REPLACE}, and {@link #EXTRA_RETURN_RESULT}.
   1366      * <p>
   1367      * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
   1368      * succeeded.
   1369      *
   1370      * @see #EXTRA_INSTALLER_PACKAGE_NAME
   1371      * @see #EXTRA_NOT_UNKNOWN_SOURCE
   1372      * @see #EXTRA_RETURN_RESULT
   1373      */
   1374     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1375     public static final String ACTION_INSTALL_PACKAGE = "android.intent.action.INSTALL_PACKAGE";
   1376 
   1377     /**
   1378      * Used as a string extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
   1379      * package.  Specifies the installer package name; this package will receive the
   1380      * {@link #ACTION_APP_ERROR} intent.
   1381      */
   1382     public static final String EXTRA_INSTALLER_PACKAGE_NAME
   1383             = "android.intent.extra.INSTALLER_PACKAGE_NAME";
   1384 
   1385     /**
   1386      * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
   1387      * package.  Specifies that the application being installed should not be
   1388      * treated as coming from an unknown source, but as coming from the app
   1389      * invoking the Intent.  For this to work you must start the installer with
   1390      * startActivityForResult().
   1391      */
   1392     public static final String EXTRA_NOT_UNKNOWN_SOURCE
   1393             = "android.intent.extra.NOT_UNKNOWN_SOURCE";
   1394 
   1395     /**
   1396      * Used as a URI extra field with {@link #ACTION_INSTALL_PACKAGE} and
   1397      * {@link #ACTION_VIEW} to indicate the URI from which the local APK in the Intent
   1398      * data field originated from.
   1399      */
   1400     public static final String EXTRA_ORIGINATING_URI
   1401             = "android.intent.extra.ORIGINATING_URI";
   1402 
   1403     /**
   1404      * This extra can be used with any Intent used to launch an activity, supplying information
   1405      * about who is launching that activity.  This field contains a {@link android.net.Uri}
   1406      * object, typically an http: or https: URI of the web site that the referral came from;
   1407      * it can also use the {@link #URI_ANDROID_APP_SCHEME android-app:} scheme to identify
   1408      * a native application that it came from.
   1409      *
   1410      * <p>To retrieve this value in a client, use {@link android.app.Activity#getReferrer}
   1411      * instead of directly retrieving the extra.  It is also valid for applications to
   1412      * instead supply {@link #EXTRA_REFERRER_NAME} for cases where they can only create
   1413      * a string, not a Uri; the field here, if supplied, will always take precedence,
   1414      * however.</p>
   1415      *
   1416      * @see #EXTRA_REFERRER_NAME
   1417      */
   1418     public static final String EXTRA_REFERRER
   1419             = "android.intent.extra.REFERRER";
   1420 
   1421     /**
   1422      * Alternate version of {@link #EXTRA_REFERRER} that supplies the URI as a String rather
   1423      * than a {@link android.net.Uri} object.  Only for use in cases where Uri objects can
   1424      * not be created, in particular when Intent extras are supplied through the
   1425      * {@link #URI_INTENT_SCHEME intent:} or {@link #URI_ANDROID_APP_SCHEME android-app:}
   1426      * schemes.
   1427      *
   1428      * @see #EXTRA_REFERRER
   1429      */
   1430     public static final String EXTRA_REFERRER_NAME
   1431             = "android.intent.extra.REFERRER_NAME";
   1432 
   1433     /**
   1434      * Used as an int extra field with {@link #ACTION_INSTALL_PACKAGE} and
   1435      * {@link} #ACTION_VIEW} to indicate the uid of the package that initiated the install
   1436      * @hide
   1437      */
   1438     public static final String EXTRA_ORIGINATING_UID
   1439             = "android.intent.extra.ORIGINATING_UID";
   1440 
   1441     /**
   1442      * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
   1443      * package.  Tells the installer UI to skip the confirmation with the user
   1444      * if the .apk is replacing an existing one.
   1445      * @deprecated As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, Android
   1446      * will no longer show an interstitial message about updating existing
   1447      * applications so this is no longer needed.
   1448      */
   1449     @Deprecated
   1450     public static final String EXTRA_ALLOW_REPLACE
   1451             = "android.intent.extra.ALLOW_REPLACE";
   1452 
   1453     /**
   1454      * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} or
   1455      * {@link #ACTION_UNINSTALL_PACKAGE}.  Specifies that the installer UI should
   1456      * return to the application the result code of the install/uninstall.  The returned result
   1457      * code will be {@link android.app.Activity#RESULT_OK} on success or
   1458      * {@link android.app.Activity#RESULT_FIRST_USER} on failure.
   1459      */
   1460     public static final String EXTRA_RETURN_RESULT
   1461             = "android.intent.extra.RETURN_RESULT";
   1462 
   1463     /**
   1464      * Package manager install result code.  @hide because result codes are not
   1465      * yet ready to be exposed.
   1466      */
   1467     public static final String EXTRA_INSTALL_RESULT
   1468             = "android.intent.extra.INSTALL_RESULT";
   1469 
   1470     /**
   1471      * Activity Action: Launch application uninstaller.
   1472      * <p>
   1473      * Input: The data must be a package: URI whose scheme specific part is
   1474      * the package name of the current installed package to be uninstalled.
   1475      * You can optionally supply {@link #EXTRA_RETURN_RESULT}.
   1476      * <p>
   1477      * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
   1478      * succeeded.
   1479      */
   1480     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1481     public static final String ACTION_UNINSTALL_PACKAGE = "android.intent.action.UNINSTALL_PACKAGE";
   1482 
   1483     /**
   1484      * Specify whether the package should be uninstalled for all users.
   1485      * @hide because these should not be part of normal application flow.
   1486      */
   1487     public static final String EXTRA_UNINSTALL_ALL_USERS
   1488             = "android.intent.extra.UNINSTALL_ALL_USERS";
   1489 
   1490     /**
   1491      * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
   1492      * describing the last run version of the platform that was setup.
   1493      * @hide
   1494      */
   1495     public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
   1496 
   1497     // ---------------------------------------------------------------------
   1498     // ---------------------------------------------------------------------
   1499     // Standard intent broadcast actions (see action variable).
   1500 
   1501     /**
   1502      * Broadcast Action: Sent when the device goes to sleep and becomes non-interactive.
   1503      * <p>
   1504      * For historical reasons, the name of this broadcast action refers to the power
   1505      * state of the screen but it is actually sent in response to changes in the
   1506      * overall interactive state of the device.
   1507      * </p><p>
   1508      * This broadcast is sent when the device becomes non-interactive which may have
   1509      * nothing to do with the screen turning off.  To determine the
   1510      * actual state of the screen, use {@link android.view.Display#getState}.
   1511      * </p><p>
   1512      * See {@link android.os.PowerManager#isInteractive} for details.
   1513      * </p>
   1514      *
   1515      * <p class="note">This is a protected intent that can only be sent
   1516      * by the system.
   1517      */
   1518     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1519     public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
   1520 
   1521     /**
   1522      * Broadcast Action: Sent when the device wakes up and becomes interactive.
   1523      * <p>
   1524      * For historical reasons, the name of this broadcast action refers to the power
   1525      * state of the screen but it is actually sent in response to changes in the
   1526      * overall interactive state of the device.
   1527      * </p><p>
   1528      * This broadcast is sent when the device becomes interactive which may have
   1529      * nothing to do with the screen turning on.  To determine the
   1530      * actual state of the screen, use {@link android.view.Display#getState}.
   1531      * </p><p>
   1532      * See {@link android.os.PowerManager#isInteractive} for details.
   1533      * </p>
   1534      *
   1535      * <p class="note">This is a protected intent that can only be sent
   1536      * by the system.
   1537      */
   1538     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1539     public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
   1540 
   1541     /**
   1542      * Broadcast Action: Sent after the system stops dreaming.
   1543      *
   1544      * <p class="note">This is a protected intent that can only be sent by the system.
   1545      * It is only sent to registered receivers.</p>
   1546      */
   1547     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1548     public static final String ACTION_DREAMING_STOPPED = "android.intent.action.DREAMING_STOPPED";
   1549 
   1550     /**
   1551      * Broadcast Action: Sent after the system starts dreaming.
   1552      *
   1553      * <p class="note">This is a protected intent that can only be sent by the system.
   1554      * It is only sent to registered receivers.</p>
   1555      */
   1556     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1557     public static final String ACTION_DREAMING_STARTED = "android.intent.action.DREAMING_STARTED";
   1558 
   1559     /**
   1560      * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
   1561      * keyguard is gone).
   1562      *
   1563      * <p class="note">This is a protected intent that can only be sent
   1564      * by the system.
   1565      */
   1566     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1567     public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
   1568 
   1569     /**
   1570      * Broadcast Action: The current time has changed.  Sent every
   1571      * minute.  You can <em>not</em> receive this through components declared
   1572      * in manifests, only by explicitly registering for it with
   1573      * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   1574      * Context.registerReceiver()}.
   1575      *
   1576      * <p class="note">This is a protected intent that can only be sent
   1577      * by the system.
   1578      */
   1579     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1580     public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
   1581     /**
   1582      * Broadcast Action: The time was set.
   1583      */
   1584     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1585     public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
   1586     /**
   1587      * Broadcast Action: The date has changed.
   1588      */
   1589     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1590     public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
   1591     /**
   1592      * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
   1593      * <ul>
   1594      *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
   1595      * </ul>
   1596      *
   1597      * <p class="note">This is a protected intent that can only be sent
   1598      * by the system.
   1599      */
   1600     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1601     public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
   1602     /**
   1603      * Clear DNS Cache Action: This is broadcast when networks have changed and old
   1604      * DNS entries should be tossed.
   1605      * @hide
   1606      */
   1607     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1608     public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
   1609     /**
   1610      * Alarm Changed Action: This is broadcast when the AlarmClock
   1611      * application's alarm is set or unset.  It is used by the
   1612      * AlarmClock application and the StatusBar service.
   1613      * @hide
   1614      */
   1615     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1616     public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
   1617     /**
   1618      * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
   1619      * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
   1620      * @hide
   1621      */
   1622     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1623     public static final String ACTION_SYNC_STATE_CHANGED
   1624             = "android.intent.action.SYNC_STATE_CHANGED";
   1625     /**
   1626      * Broadcast Action: This is broadcast once, after the system has finished
   1627      * booting.  It can be used to perform application-specific initialization,
   1628      * such as installing alarms.  You must hold the
   1629      * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
   1630      * in order to receive this broadcast.
   1631      *
   1632      * <p class="note">This is a protected intent that can only be sent
   1633      * by the system.
   1634      */
   1635     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1636     public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
   1637     /**
   1638      * Broadcast Action: This is broadcast when a user action should request a
   1639      * temporary system dialog to dismiss.  Some examples of temporary system
   1640      * dialogs are the notification window-shade and the recent tasks dialog.
   1641      */
   1642     public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
   1643     /**
   1644      * Broadcast Action: Trigger the download and eventual installation
   1645      * of a package.
   1646      * <p>Input: {@link #getData} is the URI of the package file to download.
   1647      *
   1648      * <p class="note">This is a protected intent that can only be sent
   1649      * by the system.
   1650      *
   1651      * @deprecated This constant has never been used.
   1652      */
   1653     @Deprecated
   1654     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1655     public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
   1656     /**
   1657      * Broadcast Action: A new application package has been installed on the
   1658      * device. The data contains the name of the package.  Note that the
   1659      * newly installed package does <em>not</em> receive this broadcast.
   1660      * <p>May include the following extras:
   1661      * <ul>
   1662      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
   1663      * <li> {@link #EXTRA_REPLACING} is set to true if this is following
   1664      * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
   1665      * </ul>
   1666      *
   1667      * <p class="note">This is a protected intent that can only be sent
   1668      * by the system.
   1669      */
   1670     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1671     public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
   1672     /**
   1673      * Broadcast Action: A new version of an application package has been
   1674      * installed, replacing an existing version that was previously installed.
   1675      * The data contains the name of the package.
   1676      * <p>May include the following extras:
   1677      * <ul>
   1678      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
   1679      * </ul>
   1680      *
   1681      * <p class="note">This is a protected intent that can only be sent
   1682      * by the system.
   1683      */
   1684     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1685     public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
   1686     /**
   1687      * Broadcast Action: A new version of your application has been installed
   1688      * over an existing one.  This is only sent to the application that was
   1689      * replaced.  It does not contain any additional data; to receive it, just
   1690      * use an intent filter for this action.
   1691      *
   1692      * <p class="note">This is a protected intent that can only be sent
   1693      * by the system.
   1694      */
   1695     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1696     public static final String ACTION_MY_PACKAGE_REPLACED = "android.intent.action.MY_PACKAGE_REPLACED";
   1697     /**
   1698      * Broadcast Action: An existing application package has been removed from
   1699      * the device.  The data contains the name of the package.  The package
   1700      * that is being installed does <em>not</em> receive this Intent.
   1701      * <ul>
   1702      * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
   1703      * to the package.
   1704      * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
   1705      * application -- data and code -- is being removed.
   1706      * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
   1707      * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
   1708      * </ul>
   1709      *
   1710      * <p class="note">This is a protected intent that can only be sent
   1711      * by the system.
   1712      */
   1713     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1714     public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
   1715     /**
   1716      * Broadcast Action: An existing application package has been completely
   1717      * removed from the device.  The data contains the name of the package.
   1718      * This is like {@link #ACTION_PACKAGE_REMOVED}, but only set when
   1719      * {@link #EXTRA_DATA_REMOVED} is true and
   1720      * {@link #EXTRA_REPLACING} is false of that broadcast.
   1721      *
   1722      * <ul>
   1723      * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
   1724      * to the package.
   1725      * </ul>
   1726      *
   1727      * <p class="note">This is a protected intent that can only be sent
   1728      * by the system.
   1729      */
   1730     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1731     public static final String ACTION_PACKAGE_FULLY_REMOVED
   1732             = "android.intent.action.PACKAGE_FULLY_REMOVED";
   1733     /**
   1734      * Broadcast Action: An existing application package has been changed (e.g.
   1735      * a component has been enabled or disabled).  The data contains the name of
   1736      * the package.
   1737      * <ul>
   1738      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1739      * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
   1740      * of the changed components (or the package name itself).
   1741      * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
   1742      * default action of restarting the application.
   1743      * </ul>
   1744      *
   1745      * <p class="note">This is a protected intent that can only be sent
   1746      * by the system.
   1747      */
   1748     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1749     public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
   1750     /**
   1751      * @hide
   1752      * Broadcast Action: Ask system services if there is any reason to
   1753      * restart the given package.  The data contains the name of the
   1754      * package.
   1755      * <ul>
   1756      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1757      * <li> {@link #EXTRA_PACKAGES} String array of all packages to check.
   1758      * </ul>
   1759      *
   1760      * <p class="note">This is a protected intent that can only be sent
   1761      * by the system.
   1762      */
   1763     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1764     public static final String ACTION_QUERY_PACKAGE_RESTART = "android.intent.action.QUERY_PACKAGE_RESTART";
   1765     /**
   1766      * Broadcast Action: The user has restarted a package, and all of its
   1767      * processes have been killed.  All runtime state
   1768      * associated with it (processes, alarms, notifications, etc) should
   1769      * be removed.  Note that the restarted package does <em>not</em>
   1770      * receive this broadcast.
   1771      * The data contains the name of the package.
   1772      * <ul>
   1773      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1774      * </ul>
   1775      *
   1776      * <p class="note">This is a protected intent that can only be sent
   1777      * by the system.
   1778      */
   1779     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1780     public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
   1781     /**
   1782      * Broadcast Action: The user has cleared the data of a package.  This should
   1783      * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
   1784      * its persistent data is erased and this broadcast sent.
   1785      * Note that the cleared package does <em>not</em>
   1786      * receive this broadcast. The data contains the name of the package.
   1787      * <ul>
   1788      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1789      * </ul>
   1790      *
   1791      * <p class="note">This is a protected intent that can only be sent
   1792      * by the system.
   1793      */
   1794     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1795     public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
   1796     /**
   1797      * Broadcast Action: A user ID has been removed from the system.  The user
   1798      * ID number is stored in the extra data under {@link #EXTRA_UID}.
   1799      *
   1800      * <p class="note">This is a protected intent that can only be sent
   1801      * by the system.
   1802      */
   1803     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1804     public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
   1805 
   1806     /**
   1807      * Broadcast Action: Sent to the installer package of an application
   1808      * when that application is first launched (that is the first time it
   1809      * is moved out of the stopped state).  The data contains the name of the package.
   1810      *
   1811      * <p class="note">This is a protected intent that can only be sent
   1812      * by the system.
   1813      */
   1814     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1815     public static final String ACTION_PACKAGE_FIRST_LAUNCH = "android.intent.action.PACKAGE_FIRST_LAUNCH";
   1816 
   1817     /**
   1818      * Broadcast Action: Sent to the system package verifier when a package
   1819      * needs to be verified. The data contains the package URI.
   1820      * <p class="note">
   1821      * This is a protected intent that can only be sent by the system.
   1822      * </p>
   1823      */
   1824     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1825     public static final String ACTION_PACKAGE_NEEDS_VERIFICATION = "android.intent.action.PACKAGE_NEEDS_VERIFICATION";
   1826 
   1827     /**
   1828      * Broadcast Action: Sent to the system package verifier when a package is
   1829      * verified. The data contains the package URI.
   1830      * <p class="note">
   1831      * This is a protected intent that can only be sent by the system.
   1832      */
   1833     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1834     public static final String ACTION_PACKAGE_VERIFIED = "android.intent.action.PACKAGE_VERIFIED";
   1835 
   1836     /**
   1837      * Broadcast Action: Resources for a set of packages (which were
   1838      * previously unavailable) are currently
   1839      * available since the media on which they exist is available.
   1840      * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
   1841      * list of packages whose availability changed.
   1842      * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
   1843      * list of uids of packages whose availability changed.
   1844      * Note that the
   1845      * packages in this list do <em>not</em> receive this broadcast.
   1846      * The specified set of packages are now available on the system.
   1847      * <p>Includes the following extras:
   1848      * <ul>
   1849      * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
   1850      * whose resources(were previously unavailable) are currently available.
   1851      * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the
   1852      * packages whose resources(were previously unavailable)
   1853      * are  currently available.
   1854      * </ul>
   1855      *
   1856      * <p class="note">This is a protected intent that can only be sent
   1857      * by the system.
   1858      */
   1859     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1860     public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE =
   1861         "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
   1862 
   1863     /**
   1864      * Broadcast Action: Resources for a set of packages are currently
   1865      * unavailable since the media on which they exist is unavailable.
   1866      * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
   1867      * list of packages whose availability changed.
   1868      * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
   1869      * list of uids of packages whose availability changed.
   1870      * The specified set of packages can no longer be
   1871      * launched and are practically unavailable on the system.
   1872      * <p>Inclues the following extras:
   1873      * <ul>
   1874      * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
   1875      * whose resources are no longer available.
   1876      * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages
   1877      * whose resources are no longer available.
   1878      * </ul>
   1879      *
   1880      * <p class="note">This is a protected intent that can only be sent
   1881      * by the system.
   1882      */
   1883     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1884     public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE =
   1885         "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE";
   1886 
   1887     /**
   1888      * Broadcast Action:  The current system wallpaper has changed.  See
   1889      * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
   1890      * This should <em>only</em> be used to determine when the wallpaper
   1891      * has changed to show the new wallpaper to the user.  You should certainly
   1892      * never, in response to this, change the wallpaper or other attributes of
   1893      * it such as the suggested size.  That would be crazy, right?  You'd cause
   1894      * all kinds of loops, especially if other apps are doing similar things,
   1895      * right?  Of course.  So please don't do this.
   1896      *
   1897      * @deprecated Modern applications should use
   1898      * {@link android.view.WindowManager.LayoutParams#FLAG_SHOW_WALLPAPER
   1899      * WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER} to have the wallpaper
   1900      * shown behind their UI, rather than watching for this broadcast and
   1901      * rendering the wallpaper on their own.
   1902      */
   1903     @Deprecated @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1904     public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
   1905     /**
   1906      * Broadcast Action: The current device {@link android.content.res.Configuration}
   1907      * (orientation, locale, etc) has changed.  When such a change happens, the
   1908      * UIs (view hierarchy) will need to be rebuilt based on this new
   1909      * information; for the most part, applications don't need to worry about
   1910      * this, because the system will take care of stopping and restarting the
   1911      * application to make sure it sees the new changes.  Some system code that
   1912      * can not be restarted will need to watch for this action and handle it
   1913      * appropriately.
   1914      *
   1915      * <p class="note">
   1916      * You can <em>not</em> receive this through components declared
   1917      * in manifests, only by explicitly registering for it with
   1918      * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   1919      * Context.registerReceiver()}.
   1920      *
   1921      * <p class="note">This is a protected intent that can only be sent
   1922      * by the system.
   1923      *
   1924      * @see android.content.res.Configuration
   1925      */
   1926     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1927     public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
   1928     /**
   1929      * Broadcast Action: The current device's locale has changed.
   1930      *
   1931      * <p class="note">This is a protected intent that can only be sent
   1932      * by the system.
   1933      */
   1934     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1935     public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
   1936     /**
   1937      * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
   1938      * charging state, level, and other information about the battery.
   1939      * See {@link android.os.BatteryManager} for documentation on the
   1940      * contents of the Intent.
   1941      *
   1942      * <p class="note">
   1943      * You can <em>not</em> receive this through components declared
   1944      * in manifests, only by explicitly registering for it with
   1945      * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   1946      * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
   1947      * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
   1948      * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
   1949      * broadcasts that are sent and can be received through manifest
   1950      * receivers.
   1951      *
   1952      * <p class="note">This is a protected intent that can only be sent
   1953      * by the system.
   1954      */
   1955     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1956     public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
   1957     /**
   1958      * Broadcast Action:  Indicates low battery condition on the device.
   1959      * This broadcast corresponds to the "Low battery warning" system dialog.
   1960      *
   1961      * <p class="note">This is a protected intent that can only be sent
   1962      * by the system.
   1963      */
   1964     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1965     public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
   1966     /**
   1967      * Broadcast Action:  Indicates the battery is now okay after being low.
   1968      * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
   1969      * gone back up to an okay state.
   1970      *
   1971      * <p class="note">This is a protected intent that can only be sent
   1972      * by the system.
   1973      */
   1974     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1975     public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
   1976     /**
   1977      * Broadcast Action:  External power has been connected to the device.
   1978      * This is intended for applications that wish to register specifically to this notification.
   1979      * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
   1980      * stay active to receive this notification.  This action can be used to implement actions
   1981      * that wait until power is available to trigger.
   1982      *
   1983      * <p class="note">This is a protected intent that can only be sent
   1984      * by the system.
   1985      */
   1986     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1987     public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
   1988     /**
   1989      * Broadcast Action:  External power has been removed from the device.
   1990      * This is intended for applications that wish to register specifically to this notification.
   1991      * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
   1992      * stay active to receive this notification.  This action can be used to implement actions
   1993      * that wait until power is available to trigger.
   1994      *
   1995      * <p class="note">This is a protected intent that can only be sent
   1996      * by the system.
   1997      */
   1998     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1999     public static final String ACTION_POWER_DISCONNECTED =
   2000             "android.intent.action.ACTION_POWER_DISCONNECTED";
   2001     /**
   2002      * Broadcast Action:  Device is shutting down.
   2003      * This is broadcast when the device is being shut down (completely turned
   2004      * off, not sleeping).  Once the broadcast is complete, the final shutdown
   2005      * will proceed and all unsaved data lost.  Apps will not normally need
   2006      * to handle this, since the foreground activity will be paused as well.
   2007      *
   2008      * <p class="note">This is a protected intent that can only be sent
   2009      * by the system.
   2010      * <p>May include the following extras:
   2011      * <ul>
   2012      * <li> {@link #EXTRA_SHUTDOWN_USERSPACE_ONLY} a boolean that is set to true if this
   2013      * shutdown is only for userspace processes.  If not set, assumed to be false.
   2014      * </ul>
   2015      */
   2016     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2017     public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
   2018     /**
   2019      * Activity Action:  Start this activity to request system shutdown.
   2020      * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
   2021      * to request confirmation from the user before shutting down.
   2022      *
   2023      * <p class="note">This is a protected intent that can only be sent
   2024      * by the system.
   2025      *
   2026      * {@hide}
   2027      */
   2028     public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
   2029     /**
   2030      * Broadcast Action:  A sticky broadcast that indicates low memory
   2031      * condition on the device
   2032      *
   2033      * <p class="note">This is a protected intent that can only be sent
   2034      * by the system.
   2035      */
   2036     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2037     public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
   2038     /**
   2039      * Broadcast Action:  Indicates low memory condition on the device no longer exists
   2040      *
   2041      * <p class="note">This is a protected intent that can only be sent
   2042      * by the system.
   2043      */
   2044     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2045     public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
   2046     /**
   2047      * Broadcast Action:  A sticky broadcast that indicates a memory full
   2048      * condition on the device. This is intended for activities that want
   2049      * to be able to fill the data partition completely, leaving only
   2050      * enough free space to prevent system-wide SQLite failures.
   2051      *
   2052      * <p class="note">This is a protected intent that can only be sent
   2053      * by the system.
   2054      *
   2055      * {@hide}
   2056      */
   2057     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2058     public static final String ACTION_DEVICE_STORAGE_FULL = "android.intent.action.DEVICE_STORAGE_FULL";
   2059     /**
   2060      * Broadcast Action:  Indicates memory full condition on the device
   2061      * no longer exists.
   2062      *
   2063      * <p class="note">This is a protected intent that can only be sent
   2064      * by the system.
   2065      *
   2066      * {@hide}
   2067      */
   2068     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2069     public static final String ACTION_DEVICE_STORAGE_NOT_FULL = "android.intent.action.DEVICE_STORAGE_NOT_FULL";
   2070     /**
   2071      * Broadcast Action:  Indicates low memory condition notification acknowledged by user
   2072      * and package management should be started.
   2073      * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
   2074      * notification.
   2075      */
   2076     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2077     public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
   2078     /**
   2079      * Broadcast Action:  The device has entered USB Mass Storage mode.
   2080      * This is used mainly for the USB Settings panel.
   2081      * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
   2082      * when the SD card file system is mounted or unmounted
   2083      * @deprecated replaced by android.os.storage.StorageEventListener
   2084      */
   2085     @Deprecated
   2086     public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
   2087 
   2088     /**
   2089      * Broadcast Action:  The device has exited USB Mass Storage mode.
   2090      * This is used mainly for the USB Settings panel.
   2091      * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
   2092      * when the SD card file system is mounted or unmounted
   2093      * @deprecated replaced by android.os.storage.StorageEventListener
   2094      */
   2095     @Deprecated
   2096     public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
   2097 
   2098     /**
   2099      * Broadcast Action:  External media has been removed.
   2100      * The path to the mount point for the removed media is contained in the Intent.mData field.
   2101      */
   2102     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2103     public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
   2104 
   2105     /**
   2106      * Broadcast Action:  External media is present, but not mounted at its mount point.
   2107      * The path to the mount point for the unmounted media is contained in the Intent.mData field.
   2108      */
   2109     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2110     public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
   2111 
   2112     /**
   2113      * Broadcast Action:  External media is present, and being disk-checked
   2114      * The path to the mount point for the checking media is contained in the Intent.mData field.
   2115      */
   2116     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2117     public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
   2118 
   2119     /**
   2120      * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
   2121      * The path to the mount point for the checking media is contained in the Intent.mData field.
   2122      */
   2123     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2124     public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
   2125 
   2126     /**
   2127      * Broadcast Action:  External media is present and mounted at its mount point.
   2128      * The path to the mount point for the mounted media is contained in the Intent.mData field.
   2129      * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
   2130      * media was mounted read only.
   2131      */
   2132     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2133     public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
   2134 
   2135     /**
   2136      * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
   2137      * The path to the mount point for the shared media is contained in the Intent.mData field.
   2138      */
   2139     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2140     public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
   2141 
   2142     /**
   2143      * Broadcast Action:  External media is no longer being shared via USB mass storage.
   2144      * The path to the mount point for the previously shared media is contained in the Intent.mData field.
   2145      *
   2146      * @hide
   2147      */
   2148     public static final String ACTION_MEDIA_UNSHARED = "android.intent.action.MEDIA_UNSHARED";
   2149 
   2150     /**
   2151      * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
   2152      * The path to the mount point for the removed media is contained in the Intent.mData field.
   2153      */
   2154     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2155     public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
   2156 
   2157     /**
   2158      * Broadcast Action:  External media is present but cannot be mounted.
   2159      * The path to the mount point for the unmountable media is contained in the Intent.mData field.
   2160      */
   2161     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2162     public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
   2163 
   2164    /**
   2165      * Broadcast Action:  User has expressed the desire to remove the external storage media.
   2166      * Applications should close all files they have open within the mount point when they receive this intent.
   2167      * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
   2168      */
   2169     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2170     public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
   2171 
   2172     /**
   2173      * Broadcast Action:  The media scanner has started scanning a directory.
   2174      * The path to the directory being scanned is contained in the Intent.mData field.
   2175      */
   2176     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2177     public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
   2178 
   2179    /**
   2180      * Broadcast Action:  The media scanner has finished scanning a directory.
   2181      * The path to the scanned directory is contained in the Intent.mData field.
   2182      */
   2183     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2184     public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
   2185 
   2186    /**
   2187      * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
   2188      * The path to the file is contained in the Intent.mData field.
   2189      */
   2190     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2191     public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
   2192 
   2193    /**
   2194      * Broadcast Action:  The "Media Button" was pressed.  Includes a single
   2195      * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
   2196      * caused the broadcast.
   2197      */
   2198     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2199     public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
   2200 
   2201     /**
   2202      * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
   2203      * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
   2204      * caused the broadcast.
   2205      */
   2206     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2207     public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
   2208 
   2209     // *** NOTE: @todo(*) The following really should go into a more domain-specific
   2210     // location; they are not general-purpose actions.
   2211 
   2212     /**
   2213      * Broadcast Action: A GTalk connection has been established.
   2214      */
   2215     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2216     public static final String ACTION_GTALK_SERVICE_CONNECTED =
   2217             "android.intent.action.GTALK_CONNECTED";
   2218 
   2219     /**
   2220      * Broadcast Action: A GTalk connection has been disconnected.
   2221      */
   2222     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2223     public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
   2224             "android.intent.action.GTALK_DISCONNECTED";
   2225 
   2226     /**
   2227      * Broadcast Action: An input method has been changed.
   2228      */
   2229     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2230     public static final String ACTION_INPUT_METHOD_CHANGED =
   2231             "android.intent.action.INPUT_METHOD_CHANGED";
   2232 
   2233     /**
   2234      * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
   2235      * more radios have been turned off or on. The intent will have the following extra value:</p>
   2236      * <ul>
   2237      *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
   2238      *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
   2239      *   turned off</li>
   2240      * </ul>
   2241      *
   2242      * <p class="note">This is a protected intent that can only be sent
   2243      * by the system.
   2244      */
   2245     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2246     public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
   2247 
   2248     /**
   2249      * Broadcast Action: Some content providers have parts of their namespace
   2250      * where they publish new events or items that the user may be especially
   2251      * interested in. For these things, they may broadcast this action when the
   2252      * set of interesting items change.
   2253      *
   2254      * For example, GmailProvider sends this notification when the set of unread
   2255      * mail in the inbox changes.
   2256      *
   2257      * <p>The data of the intent identifies which part of which provider
   2258      * changed. When queried through the content resolver, the data URI will
   2259      * return the data set in question.
   2260      *
   2261      * <p>The intent will have the following extra values:
   2262      * <ul>
   2263      *   <li><em>count</em> - The number of items in the data set. This is the
   2264      *       same as the number of items in the cursor returned by querying the
   2265      *       data URI. </li>
   2266      * </ul>
   2267      *
   2268      * This intent will be sent at boot (if the count is non-zero) and when the
   2269      * data set changes. It is possible for the data set to change without the
   2270      * count changing (for example, if a new unread message arrives in the same
   2271      * sync operation in which a message is archived). The phone should still
   2272      * ring/vibrate/etc as normal in this case.
   2273      */
   2274     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2275     public static final String ACTION_PROVIDER_CHANGED =
   2276             "android.intent.action.PROVIDER_CHANGED";
   2277 
   2278     /**
   2279      * Broadcast Action: Wired Headset plugged in or unplugged.
   2280      *
   2281      * Same as {@link android.media.AudioManager#ACTION_HEADSET_PLUG}, to be consulted for value
   2282      *   and documentation.
   2283      * <p>If the minimum SDK version of your application is
   2284      * {@link android.os.Build.VERSION_CODES#LOLLIPOP}, it is recommended to refer
   2285      * to the <code>AudioManager</code> constant in your receiver registration code instead.
   2286      */
   2287     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2288     public static final String ACTION_HEADSET_PLUG = android.media.AudioManager.ACTION_HEADSET_PLUG;
   2289 
   2290     /**
   2291      * <p>Broadcast Action: The user has switched on advanced settings in the settings app:</p>
   2292      * <ul>
   2293      *   <li><em>state</em> - A boolean value indicating whether the settings is on or off.</li>
   2294      * </ul>
   2295      *
   2296      * <p class="note">This is a protected intent that can only be sent
   2297      * by the system.
   2298      *
   2299      * @hide
   2300      */
   2301     //@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2302     public static final String ACTION_ADVANCED_SETTINGS_CHANGED
   2303             = "android.intent.action.ADVANCED_SETTINGS";
   2304 
   2305     /**
   2306      *  Broadcast Action: Sent after application restrictions are changed.
   2307      *
   2308      * <p class="note">This is a protected intent that can only be sent
   2309      * by the system.</p>
   2310      */
   2311     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2312     public static final String ACTION_APPLICATION_RESTRICTIONS_CHANGED =
   2313             "android.intent.action.APPLICATION_RESTRICTIONS_CHANGED";
   2314 
   2315     /**
   2316      * Broadcast Action: An outgoing call is about to be placed.
   2317      *
   2318      * <p>The Intent will have the following extra value:</p>
   2319      * <ul>
   2320      *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
   2321      *       the phone number originally intended to be dialed.</li>
   2322      * </ul>
   2323      * <p>Once the broadcast is finished, the resultData is used as the actual
   2324      * number to call.  If  <code>null</code>, no call will be placed.</p>
   2325      * <p>It is perfectly acceptable for multiple receivers to process the
   2326      * outgoing call in turn: for example, a parental control application
   2327      * might verify that the user is authorized to place the call at that
   2328      * time, then a number-rewriting application might add an area code if
   2329      * one was not specified.</p>
   2330      * <p>For consistency, any receiver whose purpose is to prohibit phone
   2331      * calls should have a priority of 0, to ensure it will see the final
   2332      * phone number to be dialed.
   2333      * Any receiver whose purpose is to rewrite phone numbers to be called
   2334      * should have a positive priority.
   2335      * Negative priorities are reserved for the system for this broadcast;
   2336      * using them may cause problems.</p>
   2337      * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
   2338      * abort the broadcast.</p>
   2339      * <p>Emergency calls cannot be intercepted using this mechanism, and
   2340      * other calls cannot be modified to call emergency numbers using this
   2341      * mechanism.
   2342      * <p>Some apps (such as VoIP apps) may want to redirect the outgoing
   2343      * call to use their own service instead. Those apps should first prevent
   2344      * the call from being placed by setting resultData to <code>null</code>
   2345      * and then start their own app to make the call.
   2346      * <p>You must hold the
   2347      * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
   2348      * permission to receive this Intent.</p>
   2349      *
   2350      * <p class="note">This is a protected intent that can only be sent
   2351      * by the system.
   2352      */
   2353     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2354     public static final String ACTION_NEW_OUTGOING_CALL =
   2355             "android.intent.action.NEW_OUTGOING_CALL";
   2356 
   2357     /**
   2358      * Broadcast Action: Have the device reboot.  This is only for use by
   2359      * system code.
   2360      *
   2361      * <p class="note">This is a protected intent that can only be sent
   2362      * by the system.
   2363      */
   2364     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2365     public static final String ACTION_REBOOT =
   2366             "android.intent.action.REBOOT";
   2367 
   2368     /**
   2369      * Broadcast Action:  A sticky broadcast for changes in the physical
   2370      * docking state of the device.
   2371      *
   2372      * <p>The intent will have the following extra values:
   2373      * <ul>
   2374      *   <li><em>{@link #EXTRA_DOCK_STATE}</em> - the current dock
   2375      *       state, indicating which dock the device is physically in.</li>
   2376      * </ul>
   2377      * <p>This is intended for monitoring the current physical dock state.
   2378      * See {@link android.app.UiModeManager} for the normal API dealing with
   2379      * dock mode changes.
   2380      */
   2381     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2382     public static final String ACTION_DOCK_EVENT =
   2383             "android.intent.action.DOCK_EVENT";
   2384 
   2385     /**
   2386      * Broadcast Action: A broadcast when idle maintenance can be started.
   2387      * This means that the user is not interacting with the device and is
   2388      * not expected to do so soon. Typical use of the idle maintenance is
   2389      * to perform somehow expensive tasks that can be postponed at a moment
   2390      * when they will not degrade user experience.
   2391      * <p>
   2392      * <p class="note">In order to keep the device responsive in case of an
   2393      * unexpected user interaction, implementations of a maintenance task
   2394      * should be interruptible. In such a scenario a broadcast with action
   2395      * {@link #ACTION_IDLE_MAINTENANCE_END} will be sent. In other words, you
   2396      * should not do the maintenance work in
   2397      * {@link BroadcastReceiver#onReceive(Context, Intent)}, rather start a
   2398      * maintenance service by {@link Context#startService(Intent)}. Also
   2399      * you should hold a wake lock while your maintenance service is running
   2400      * to prevent the device going to sleep.
   2401      * </p>
   2402      * <p>
   2403      * <p class="note">This is a protected intent that can only be sent by
   2404      * the system.
   2405      * </p>
   2406      *
   2407      * @see #ACTION_IDLE_MAINTENANCE_END
   2408      *
   2409      * @hide
   2410      */
   2411     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2412     public static final String ACTION_IDLE_MAINTENANCE_START =
   2413             "android.intent.action.ACTION_IDLE_MAINTENANCE_START";
   2414 
   2415     /**
   2416      * Broadcast Action:  A broadcast when idle maintenance should be stopped.
   2417      * This means that the user was not interacting with the device as a result
   2418      * of which a broadcast with action {@link #ACTION_IDLE_MAINTENANCE_START}
   2419      * was sent and now the user started interacting with the device. Typical
   2420      * use of the idle maintenance is to perform somehow expensive tasks that
   2421      * can be postponed at a moment when they will not degrade user experience.
   2422      * <p>
   2423      * <p class="note">In order to keep the device responsive in case of an
   2424      * unexpected user interaction, implementations of a maintenance task
   2425      * should be interruptible. Hence, on receiving a broadcast with this
   2426      * action, the maintenance task should be interrupted as soon as possible.
   2427      * In other words, you should not do the maintenance work in
   2428      * {@link BroadcastReceiver#onReceive(Context, Intent)}, rather stop the
   2429      * maintenance service that was started on receiving of
   2430      * {@link #ACTION_IDLE_MAINTENANCE_START}.Also you should release the wake
   2431      * lock you acquired when your maintenance service started.
   2432      * </p>
   2433      * <p class="note">This is a protected intent that can only be sent
   2434      * by the system.
   2435      *
   2436      * @see #ACTION_IDLE_MAINTENANCE_START
   2437      *
   2438      * @hide
   2439      */
   2440     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2441     public static final String ACTION_IDLE_MAINTENANCE_END =
   2442             "android.intent.action.ACTION_IDLE_MAINTENANCE_END";
   2443 
   2444     /**
   2445      * Broadcast Action: a remote intent is to be broadcasted.
   2446      *
   2447      * A remote intent is used for remote RPC between devices. The remote intent
   2448      * is serialized and sent from one device to another device. The receiving
   2449      * device parses the remote intent and broadcasts it. Note that anyone can
   2450      * broadcast a remote intent. However, if the intent receiver of the remote intent
   2451      * does not trust intent broadcasts from arbitrary intent senders, it should require
   2452      * the sender to hold certain permissions so only trusted sender's broadcast will be
   2453      * let through.
   2454      * @hide
   2455      */
   2456     public static final String ACTION_REMOTE_INTENT =
   2457             "com.google.android.c2dm.intent.RECEIVE";
   2458 
   2459     /**
   2460      * Broadcast Action: hook for permforming cleanup after a system update.
   2461      *
   2462      * The broadcast is sent when the system is booting, before the
   2463      * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
   2464      * image.  A receiver for this should do its work and then disable itself
   2465      * so that it does not get run again at the next boot.
   2466      * @hide
   2467      */
   2468     public static final String ACTION_PRE_BOOT_COMPLETED =
   2469             "android.intent.action.PRE_BOOT_COMPLETED";
   2470 
   2471     /**
   2472      * Broadcast to a specific application to query any supported restrictions to impose
   2473      * on restricted users. The broadcast intent contains an extra
   2474      * {@link #EXTRA_RESTRICTIONS_BUNDLE} with the currently persisted
   2475      * restrictions as a Bundle of key/value pairs. The value types can be Boolean, String or
   2476      * String[] depending on the restriction type.<p/>
   2477      * The response should contain an extra {@link #EXTRA_RESTRICTIONS_LIST},
   2478      * which is of type <code>ArrayList&lt;RestrictionEntry&gt;</code>. It can also
   2479      * contain an extra {@link #EXTRA_RESTRICTIONS_INTENT}, which is of type <code>Intent</code>.
   2480      * The activity specified by that intent will be launched for a result which must contain
   2481      * one of the extras {@link #EXTRA_RESTRICTIONS_LIST} or {@link #EXTRA_RESTRICTIONS_BUNDLE}.
   2482      * The keys and values of the returned restrictions will be persisted.
   2483      * @see RestrictionEntry
   2484      */
   2485     public static final String ACTION_GET_RESTRICTION_ENTRIES =
   2486             "android.intent.action.GET_RESTRICTION_ENTRIES";
   2487 
   2488     /**
   2489      * @hide
   2490      * Activity to challenge the user for a PIN that was configured when setting up
   2491      * restrictions. Restrictions include blocking of apps and preventing certain user operations,
   2492      * controlled by {@link android.os.UserManager#setUserRestrictions(Bundle).
   2493      * Launch the activity using
   2494      * {@link android.app.Activity#startActivityForResult(Intent, int)} and check if the
   2495      * result is {@link android.app.Activity#RESULT_OK} for a successful response to the
   2496      * challenge.<p/>
   2497      * Before launching this activity, make sure that there is a PIN in effect, by calling
   2498      * {@link android.os.UserManager#hasRestrictionsChallenge()}.
   2499      */
   2500     public static final String ACTION_RESTRICTIONS_CHALLENGE =
   2501             "android.intent.action.RESTRICTIONS_CHALLENGE";
   2502 
   2503     /**
   2504      * Sent the first time a user is starting, to allow system apps to
   2505      * perform one time initialization.  (This will not be seen by third
   2506      * party applications because a newly initialized user does not have any
   2507      * third party applications installed for it.)  This is sent early in
   2508      * starting the user, around the time the home app is started, before
   2509      * {@link #ACTION_BOOT_COMPLETED} is sent.  This is sent as a foreground
   2510      * broadcast, since it is part of a visible user interaction; be as quick
   2511      * as possible when handling it.
   2512      */
   2513     public static final String ACTION_USER_INITIALIZE =
   2514             "android.intent.action.USER_INITIALIZE";
   2515 
   2516     /**
   2517      * Sent when a user switch is happening, causing the process's user to be
   2518      * brought to the foreground.  This is only sent to receivers registered
   2519      * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   2520      * Context.registerReceiver}.  It is sent to the user that is going to the
   2521      * foreground.  This is sent as a foreground
   2522      * broadcast, since it is part of a visible user interaction; be as quick
   2523      * as possible when handling it.
   2524      */
   2525     public static final String ACTION_USER_FOREGROUND =
   2526             "android.intent.action.USER_FOREGROUND";
   2527 
   2528     /**
   2529      * Sent when a user switch is happening, causing the process's user to be
   2530      * sent to the background.  This is only sent to receivers registered
   2531      * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   2532      * Context.registerReceiver}.  It is sent to the user that is going to the
   2533      * background.  This is sent as a foreground
   2534      * broadcast, since it is part of a visible user interaction; be as quick
   2535      * as possible when handling it.
   2536      */
   2537     public static final String ACTION_USER_BACKGROUND =
   2538             "android.intent.action.USER_BACKGROUND";
   2539 
   2540     /**
   2541      * Broadcast sent to the system when a user is added. Carries an extra
   2542      * EXTRA_USER_HANDLE that has the userHandle of the new user.  It is sent to
   2543      * all running users.  You must hold
   2544      * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
   2545      * @hide
   2546      */
   2547     public static final String ACTION_USER_ADDED =
   2548             "android.intent.action.USER_ADDED";
   2549 
   2550     /**
   2551      * Broadcast sent by the system when a user is started. Carries an extra
   2552      * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only sent to
   2553      * registered receivers, not manifest receivers.  It is sent to the user
   2554      * that has been started.  This is sent as a foreground
   2555      * broadcast, since it is part of a visible user interaction; be as quick
   2556      * as possible when handling it.
   2557      * @hide
   2558      */
   2559     public static final String ACTION_USER_STARTED =
   2560             "android.intent.action.USER_STARTED";
   2561 
   2562     /**
   2563      * Broadcast sent when a user is in the process of starting.  Carries an extra
   2564      * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only
   2565      * sent to registered receivers, not manifest receivers.  It is sent to all
   2566      * users (including the one that is being started).  You must hold
   2567      * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive
   2568      * this broadcast.  This is sent as a background broadcast, since
   2569      * its result is not part of the primary UX flow; to safely keep track of
   2570      * started/stopped state of a user you can use this in conjunction with
   2571      * {@link #ACTION_USER_STOPPING}.  It is <b>not</b> generally safe to use with
   2572      * other user state broadcasts since those are foreground broadcasts so can
   2573      * execute in a different order.
   2574      * @hide
   2575      */
   2576     public static final String ACTION_USER_STARTING =
   2577             "android.intent.action.USER_STARTING";
   2578 
   2579     /**
   2580      * Broadcast sent when a user is going to be stopped.  Carries an extra
   2581      * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only
   2582      * sent to registered receivers, not manifest receivers.  It is sent to all
   2583      * users (including the one that is being stopped).  You must hold
   2584      * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive
   2585      * this broadcast.  The user will not stop until all receivers have
   2586      * handled the broadcast.  This is sent as a background broadcast, since
   2587      * its result is not part of the primary UX flow; to safely keep track of
   2588      * started/stopped state of a user you can use this in conjunction with
   2589      * {@link #ACTION_USER_STARTING}.  It is <b>not</b> generally safe to use with
   2590      * other user state broadcasts since those are foreground broadcasts so can
   2591      * execute in a different order.
   2592      * @hide
   2593      */
   2594     public static final String ACTION_USER_STOPPING =
   2595             "android.intent.action.USER_STOPPING";
   2596 
   2597     /**
   2598      * Broadcast sent to the system when a user is stopped. Carries an extra
   2599      * EXTRA_USER_HANDLE that has the userHandle of the user.  This is similar to
   2600      * {@link #ACTION_PACKAGE_RESTARTED}, but for an entire user instead of a
   2601      * specific package.  This is only sent to registered receivers, not manifest
   2602      * receivers.  It is sent to all running users <em>except</em> the one that
   2603      * has just been stopped (which is no longer running).
   2604      * @hide
   2605      */
   2606     public static final String ACTION_USER_STOPPED =
   2607             "android.intent.action.USER_STOPPED";
   2608 
   2609     /**
   2610      * Broadcast sent to the system when a user is removed. Carries an extra EXTRA_USER_HANDLE that has
   2611      * the userHandle of the user.  It is sent to all running users except the
   2612      * one that has been removed. The user will not be completely removed until all receivers have
   2613      * handled the broadcast. You must hold
   2614      * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
   2615      * @hide
   2616      */
   2617     public static final String ACTION_USER_REMOVED =
   2618             "android.intent.action.USER_REMOVED";
   2619 
   2620     /**
   2621      * Broadcast sent to the system when the user switches. Carries an extra EXTRA_USER_HANDLE that has
   2622      * the userHandle of the user to become the current one. This is only sent to
   2623      * registered receivers, not manifest receivers.  It is sent to all running users.
   2624      * You must hold
   2625      * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
   2626      * @hide
   2627      */
   2628     public static final String ACTION_USER_SWITCHED =
   2629             "android.intent.action.USER_SWITCHED";
   2630 
   2631     /**
   2632      * Broadcast sent to the system when a user's information changes. Carries an extra
   2633      * {@link #EXTRA_USER_HANDLE} to indicate which user's information changed.
   2634      * This is only sent to registered receivers, not manifest receivers. It is sent to all users.
   2635      * @hide
   2636      */
   2637     public static final String ACTION_USER_INFO_CHANGED =
   2638             "android.intent.action.USER_INFO_CHANGED";
   2639 
   2640     /**
   2641      * Broadcast sent to the primary user when an associated managed profile is added (the profile
   2642      * was created and is ready to be used). Carries an extra {@link #EXTRA_USER} that specifies
   2643      * the UserHandle of the profile that was added. Only applications (for example Launchers)
   2644      * that need to display merged content across both primary and managed profiles need to
   2645      * worry about this broadcast. This is only sent to registered receivers,
   2646      * not manifest receivers.
   2647      */
   2648     public static final String ACTION_MANAGED_PROFILE_ADDED =
   2649             "android.intent.action.MANAGED_PROFILE_ADDED";
   2650 
   2651     /**
   2652      * Broadcast sent to the primary user when an associated managed profile is removed. Carries an
   2653      * extra {@link #EXTRA_USER} that specifies the UserHandle of the profile that was removed.
   2654      * Only applications (for example Launchers) that need to display merged content across both
   2655      * primary and managed profiles need to worry about this broadcast. This is only sent to
   2656      * registered receivers, not manifest receivers.
   2657      */
   2658     public static final String ACTION_MANAGED_PROFILE_REMOVED =
   2659             "android.intent.action.MANAGED_PROFILE_REMOVED";
   2660 
   2661     /**
   2662      * Sent when the user taps on the clock widget in the system's "quick settings" area.
   2663      */
   2664     public static final String ACTION_QUICK_CLOCK =
   2665             "android.intent.action.QUICK_CLOCK";
   2666 
   2667     /**
   2668      * Activity Action: Shows the brightness setting dialog.
   2669      * @hide
   2670      */
   2671     public static final String ACTION_SHOW_BRIGHTNESS_DIALOG =
   2672             "android.intent.action.SHOW_BRIGHTNESS_DIALOG";
   2673 
   2674     /**
   2675      * Broadcast Action:  A global button was pressed.  Includes a single
   2676      * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
   2677      * caused the broadcast.
   2678      * @hide
   2679      */
   2680     public static final String ACTION_GLOBAL_BUTTON = "android.intent.action.GLOBAL_BUTTON";
   2681 
   2682     /**
   2683      * Activity Action: Allow the user to select and return one or more existing
   2684      * documents. When invoked, the system will display the various
   2685      * {@link DocumentsProvider} instances installed on the device, letting the
   2686      * user interactively navigate through them. These documents include local
   2687      * media, such as photos and video, and documents provided by installed
   2688      * cloud storage providers.
   2689      * <p>
   2690      * Each document is represented as a {@code content://} URI backed by a
   2691      * {@link DocumentsProvider}, which can be opened as a stream with
   2692      * {@link ContentResolver#openFileDescriptor(Uri, String)}, or queried for
   2693      * {@link android.provider.DocumentsContract.Document} metadata.
   2694      * <p>
   2695      * All selected documents are returned to the calling application with
   2696      * persistable read and write permission grants. If you want to maintain
   2697      * access to the documents across device reboots, you need to explicitly
   2698      * take the persistable permissions using
   2699      * {@link ContentResolver#takePersistableUriPermission(Uri, int)}.
   2700      * <p>
   2701      * Callers must indicate the acceptable document MIME types through
   2702      * {@link #setType(String)}. For example, to select photos, use
   2703      * {@code image/*}. If multiple disjoint MIME types are acceptable, define
   2704      * them in {@link #EXTRA_MIME_TYPES} and {@link #setType(String)} to
   2705      * {@literal *}/*.
   2706      * <p>
   2707      * If the caller can handle multiple returned items (the user performing
   2708      * multiple selection), then you can specify {@link #EXTRA_ALLOW_MULTIPLE}
   2709      * to indicate this.
   2710      * <p>
   2711      * Callers must include {@link #CATEGORY_OPENABLE} in the Intent so that
   2712      * returned URIs can be opened with
   2713      * {@link ContentResolver#openFileDescriptor(Uri, String)}.
   2714      * <p>
   2715      * Output: The URI of the item that was picked, returned in
   2716      * {@link #getData()}. This must be a {@code content://} URI so that any
   2717      * receiver can access it. If multiple documents were selected, they are
   2718      * returned in {@link #getClipData()}.
   2719      *
   2720      * @see DocumentsContract
   2721      * @see #ACTION_OPEN_DOCUMENT_TREE
   2722      * @see #ACTION_CREATE_DOCUMENT
   2723      * @see #FLAG_GRANT_PERSISTABLE_URI_PERMISSION
   2724      */
   2725     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   2726     public static final String ACTION_OPEN_DOCUMENT = "android.intent.action.OPEN_DOCUMENT";
   2727 
   2728     /**
   2729      * Activity Action: Allow the user to create a new document. When invoked,
   2730      * the system will display the various {@link DocumentsProvider} instances
   2731      * installed on the device, letting the user navigate through them. The
   2732      * returned document may be a newly created document with no content, or it
   2733      * may be an existing document with the requested MIME type.
   2734      * <p>
   2735      * Each document is represented as a {@code content://} URI backed by a
   2736      * {@link DocumentsProvider}, which can be opened as a stream with
   2737      * {@link ContentResolver#openFileDescriptor(Uri, String)}, or queried for
   2738      * {@link android.provider.DocumentsContract.Document} metadata.
   2739      * <p>
   2740      * Callers must indicate the concrete MIME type of the document being
   2741      * created by setting {@link #setType(String)}. This MIME type cannot be
   2742      * changed after the document is created.
   2743      * <p>
   2744      * Callers can provide an initial display name through {@link #EXTRA_TITLE},
   2745      * but the user may change this value before creating the file.
   2746      * <p>
   2747      * Callers must include {@link #CATEGORY_OPENABLE} in the Intent so that
   2748      * returned URIs can be opened with
   2749      * {@link ContentResolver#openFileDescriptor(Uri, String)}.
   2750      * <p>
   2751      * Output: The URI of the item that was created. This must be a
   2752      * {@code content://} URI so that any receiver can access it.
   2753      *
   2754      * @see DocumentsContract
   2755      * @see #ACTION_OPEN_DOCUMENT
   2756      * @see #ACTION_OPEN_DOCUMENT_TREE
   2757      * @see #FLAG_GRANT_PERSISTABLE_URI_PERMISSION
   2758      */
   2759     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   2760     public static final String ACTION_CREATE_DOCUMENT = "android.intent.action.CREATE_DOCUMENT";
   2761 
   2762     /**
   2763      * Activity Action: Allow the user to pick a directory subtree. When
   2764      * invoked, the system will display the various {@link DocumentsProvider}
   2765      * instances installed on the device, letting the user navigate through
   2766      * them. Apps can fully manage documents within the returned directory.
   2767      * <p>
   2768      * To gain access to descendant (child, grandchild, etc) documents, use
   2769      * {@link DocumentsContract#buildDocumentUriUsingTree(Uri, String)} and
   2770      * {@link DocumentsContract#buildChildDocumentsUriUsingTree(Uri, String)}
   2771      * with the returned URI.
   2772      * <p>
   2773      * Output: The URI representing the selected directory tree.
   2774      *
   2775      * @see DocumentsContract
   2776      */
   2777     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   2778     public static final String
   2779             ACTION_OPEN_DOCUMENT_TREE = "android.intent.action.OPEN_DOCUMENT_TREE";
   2780 
   2781     /** {@hide} */
   2782     public static final String ACTION_MASTER_CLEAR = "android.intent.action.MASTER_CLEAR";
   2783 
   2784     // ---------------------------------------------------------------------
   2785     // ---------------------------------------------------------------------
   2786     // Standard intent categories (see addCategory()).
   2787 
   2788     /**
   2789      * Set if the activity should be an option for the default action
   2790      * (center press) to perform on a piece of data.  Setting this will
   2791      * hide from the user any activities without it set when performing an
   2792      * action on some data.  Note that this is normally -not- set in the
   2793      * Intent when initiating an action -- it is for use in intent filters
   2794      * specified in packages.
   2795      */
   2796     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2797     public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
   2798     /**
   2799      * Activities that can be safely invoked from a browser must support this
   2800      * category.  For example, if the user is viewing a web page or an e-mail
   2801      * and clicks on a link in the text, the Intent generated execute that
   2802      * link will require the BROWSABLE category, so that only activities
   2803      * supporting this category will be considered as possible actions.  By
   2804      * supporting this category, you are promising that there is nothing
   2805      * damaging (without user intervention) that can happen by invoking any
   2806      * matching Intent.
   2807      */
   2808     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2809     public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
   2810     /**
   2811      * @hide
   2812      * Categories for activities that can participate in voice interaction.
   2813      * An activity that supports this category must be prepared to run with
   2814      * no UI shown at all (though in some case it may have a UI shown), and
   2815      * rely on {@link android.app.VoiceInteractor} to interact with the user.
   2816      */
   2817     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2818     @SystemApi
   2819     public static final String CATEGORY_VOICE = "android.intent.category.VOICE";
   2820     /**
   2821      * Set if the activity should be considered as an alternative action to
   2822      * the data the user is currently viewing.  See also
   2823      * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
   2824      * applies to the selection in a list of items.
   2825      *
   2826      * <p>Supporting this category means that you would like your activity to be
   2827      * displayed in the set of alternative things the user can do, usually as
   2828      * part of the current activity's options menu.  You will usually want to
   2829      * include a specific label in the &lt;intent-filter&gt; of this action
   2830      * describing to the user what it does.
   2831      *
   2832      * <p>The action of IntentFilter with this category is important in that it
   2833      * describes the specific action the target will perform.  This generally
   2834      * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
   2835      * a specific name such as "com.android.camera.action.CROP.  Only one
   2836      * alternative of any particular action will be shown to the user, so using
   2837      * a specific action like this makes sure that your alternative will be
   2838      * displayed while also allowing other applications to provide their own
   2839      * overrides of that particular action.
   2840      */
   2841     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2842     public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
   2843     /**
   2844      * Set if the activity should be considered as an alternative selection
   2845      * action to the data the user has currently selected.  This is like
   2846      * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
   2847      * of items from which the user can select, giving them alternatives to the
   2848      * default action that will be performed on it.
   2849      */
   2850     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2851     public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
   2852     /**
   2853      * Intended to be used as a tab inside of a containing TabActivity.
   2854      */
   2855     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2856     public static final String CATEGORY_TAB = "android.intent.category.TAB";
   2857     /**
   2858      * Should be displayed in the top-level launcher.
   2859      */
   2860     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2861     public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
   2862     /**
   2863      * Indicates an activity optimized for Leanback mode, and that should
   2864      * be displayed in the Leanback launcher.
   2865      */
   2866     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2867     public static final String CATEGORY_LEANBACK_LAUNCHER = "android.intent.category.LEANBACK_LAUNCHER";
   2868     /**
   2869      * Indicates a Leanback settings activity to be displayed in the Leanback launcher.
   2870      * @hide
   2871      */
   2872     @SystemApi
   2873     public static final String CATEGORY_LEANBACK_SETTINGS = "android.intent.category.LEANBACK_SETTINGS";
   2874     /**
   2875      * Provides information about the package it is in; typically used if
   2876      * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
   2877      * a front-door to the user without having to be shown in the all apps list.
   2878      */
   2879     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2880     public static final String CATEGORY_INFO = "android.intent.category.INFO";
   2881     /**
   2882      * This is the home activity, that is the first activity that is displayed
   2883      * when the device boots.
   2884      */
   2885     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2886     public static final String CATEGORY_HOME = "android.intent.category.HOME";
   2887     /**
   2888      * This activity is a preference panel.
   2889      */
   2890     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2891     public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
   2892     /**
   2893      * This activity is a development preference panel.
   2894      */
   2895     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2896     public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
   2897     /**
   2898      * Capable of running inside a parent activity container.
   2899      */
   2900     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2901     public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
   2902     /**
   2903      * This activity allows the user to browse and download new applications.
   2904      */
   2905     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2906     public static final String CATEGORY_APP_MARKET = "android.intent.category.APP_MARKET";
   2907     /**
   2908      * This activity may be exercised by the monkey or other automated test tools.
   2909      */
   2910     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2911     public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
   2912     /**
   2913      * To be used as a test (not part of the normal user experience).
   2914      */
   2915     public static final String CATEGORY_TEST = "android.intent.category.TEST";
   2916     /**
   2917      * To be used as a unit test (run through the Test Harness).
   2918      */
   2919     public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
   2920     /**
   2921      * To be used as a sample code example (not part of the normal user
   2922      * experience).
   2923      */
   2924     public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
   2925 
   2926     /**
   2927      * Used to indicate that an intent only wants URIs that can be opened with
   2928      * {@link ContentResolver#openFileDescriptor(Uri, String)}. Openable URIs
   2929      * must support at least the columns defined in {@link OpenableColumns} when
   2930      * queried.
   2931      *
   2932      * @see #ACTION_GET_CONTENT
   2933      * @see #ACTION_OPEN_DOCUMENT
   2934      * @see #ACTION_CREATE_DOCUMENT
   2935      */
   2936     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2937     public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
   2938 
   2939     /**
   2940      * To be used as code under test for framework instrumentation tests.
   2941      */
   2942     public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
   2943             "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
   2944     /**
   2945      * An activity to run when device is inserted into a car dock.
   2946      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2947      * information, see {@link android.app.UiModeManager}.
   2948      */
   2949     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2950     public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
   2951     /**
   2952      * An activity to run when device is inserted into a car dock.
   2953      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2954      * information, see {@link android.app.UiModeManager}.
   2955      */
   2956     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2957     public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
   2958     /**
   2959      * An activity to run when device is inserted into a analog (low end) dock.
   2960      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2961      * information, see {@link android.app.UiModeManager}.
   2962      */
   2963     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2964     public static final String CATEGORY_LE_DESK_DOCK = "android.intent.category.LE_DESK_DOCK";
   2965 
   2966     /**
   2967      * An activity to run when device is inserted into a digital (high end) dock.
   2968      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2969      * information, see {@link android.app.UiModeManager}.
   2970      */
   2971     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2972     public static final String CATEGORY_HE_DESK_DOCK = "android.intent.category.HE_DESK_DOCK";
   2973 
   2974     /**
   2975      * Used to indicate that the activity can be used in a car environment.
   2976      */
   2977     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2978     public static final String CATEGORY_CAR_MODE = "android.intent.category.CAR_MODE";
   2979 
   2980     // ---------------------------------------------------------------------
   2981     // ---------------------------------------------------------------------
   2982     // Application launch intent categories (see addCategory()).
   2983 
   2984     /**
   2985      * Used with {@link #ACTION_MAIN} to launch the browser application.
   2986      * The activity should be able to browse the Internet.
   2987      * <p>NOTE: This should not be used as the primary key of an Intent,
   2988      * since it will not result in the app launching with the correct
   2989      * action and category.  Instead, use this with
   2990      * {@link #makeMainSelectorActivity(String, String)} to generate a main
   2991      * Intent with this category in the selector.</p>
   2992      */
   2993     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2994     public static final String CATEGORY_APP_BROWSER = "android.intent.category.APP_BROWSER";
   2995 
   2996     /**
   2997      * Used with {@link #ACTION_MAIN} to launch the calculator application.
   2998      * The activity should be able to perform standard arithmetic operations.
   2999      * <p>NOTE: This should not be used as the primary key of an Intent,
   3000      * since it will not result in the app launching with the correct
   3001      * action and category.  Instead, use this with
   3002      * {@link #makeMainSelectorActivity(String, String)} to generate a main
   3003      * Intent with this category in the selector.</p>
   3004      */
   3005     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   3006     public static final String CATEGORY_APP_CALCULATOR = "android.intent.category.APP_CALCULATOR";
   3007 
   3008     /**
   3009      * Used with {@link #ACTION_MAIN} to launch the calendar application.
   3010      * The activity should be able to view and manipulate calendar entries.
   3011      * <p>NOTE: This should not be used as the primary key of an Intent,
   3012      * since it will not result in the app launching with the correct
   3013      * action and category.  Instead, use this with
   3014      * {@link #makeMainSelectorActivity(String, String)} to generate a main
   3015      * Intent with this category in the selector.</p>
   3016      */
   3017     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   3018     public static final String CATEGORY_APP_CALENDAR = "android.intent.category.APP_CALENDAR";
   3019 
   3020     /**
   3021      * Used with {@link #ACTION_MAIN} to launch the contacts application.
   3022      * The activity should be able to view and manipulate address book entries.
   3023      * <p>NOTE: This should not be used as the primary key of an Intent,
   3024      * since it will not result in the app launching with the correct
   3025      * action and category.  Instead, use this with
   3026      * {@link #makeMainSelectorActivity(String, String)} to generate a main
   3027      * Intent with this category in the selector.</p>
   3028      */
   3029     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   3030     public static final String CATEGORY_APP_CONTACTS = "android.intent.category.APP_CONTACTS";
   3031 
   3032     /**
   3033      * Used with {@link #ACTION_MAIN} to launch the email application.
   3034      * The activity should be able to send and receive email.
   3035      * <p>NOTE: This should not be used as the primary key of an Intent,
   3036      * since it will not result in the app launching with the correct
   3037      * action and category.  Instead, use this with
   3038      * {@link #makeMainSelectorActivity(String, String)} to generate a main
   3039      * Intent with this category in the selector.</p>
   3040      */
   3041     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   3042     public static final String CATEGORY_APP_EMAIL = "android.intent.category.APP_EMAIL";
   3043 
   3044     /**
   3045      * Used with {@link #ACTION_MAIN} to launch the gallery application.
   3046      * The activity should be able to view and manipulate image and video files
   3047      * stored on the device.
   3048      * <p>NOTE: This should not be used as the primary key of an Intent,
   3049      * since it will not result in the app launching with the correct
   3050      * action and category.  Instead, use this with
   3051      * {@link #makeMainSelectorActivity(String, String)} to generate a main
   3052      * Intent with this category in the selector.</p>
   3053      */
   3054     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   3055     public static final String CATEGORY_APP_GALLERY = "android.intent.category.APP_GALLERY";
   3056 
   3057     /**
   3058      * Used with {@link #ACTION_MAIN} to launch the maps application.
   3059      * The activity should be able to show the user's current location and surroundings.
   3060      * <p>NOTE: This should not be used as the primary key of an Intent,
   3061      * since it will not result in the app launching with the correct
   3062      * action and category.  Instead, use this with
   3063      * {@link #makeMainSelectorActivity(String, String)} to generate a main
   3064      * Intent with this category in the selector.</p>
   3065      */
   3066     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   3067     public static final String CATEGORY_APP_MAPS = "android.intent.category.APP_MAPS";
   3068 
   3069     /**
   3070      * Used with {@link #ACTION_MAIN} to launch the messaging application.
   3071      * The activity should be able to send and receive text messages.
   3072      * <p>NOTE: This should not be used as the primary key of an Intent,
   3073      * since it will not result in the app launching with the correct
   3074      * action and category.  Instead, use this with
   3075      * {@link #makeMainSelectorActivity(String, String)} to generate a main
   3076      * Intent with this category in the selector.</p>
   3077      */
   3078     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   3079     public static final String CATEGORY_APP_MESSAGING = "android.intent.category.APP_MESSAGING";
   3080 
   3081     /**
   3082      * Used with {@link #ACTION_MAIN} to launch the music application.
   3083      * The activity should be able to play, browse, or manipulate music files
   3084      * stored on the device.
   3085      * <p>NOTE: This should not be used as the primary key of an Intent,
   3086      * since it will not result in the app launching with the correct
   3087      * action and category.  Instead, use this with
   3088      * {@link #makeMainSelectorActivity(String, String)} to generate a main
   3089      * Intent with this category in the selector.</p>
   3090      */
   3091     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   3092     public static final String CATEGORY_APP_MUSIC = "android.intent.category.APP_MUSIC";
   3093 
   3094     // ---------------------------------------------------------------------
   3095     // ---------------------------------------------------------------------
   3096     // Standard extra data keys.
   3097 
   3098     /**
   3099      * The initial data to place in a newly created record.  Use with
   3100      * {@link #ACTION_INSERT}.  The data here is a Map containing the same
   3101      * fields as would be given to the underlying ContentProvider.insert()
   3102      * call.
   3103      */
   3104     public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
   3105 
   3106     /**
   3107      * A constant CharSequence that is associated with the Intent, used with
   3108      * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
   3109      * this may be a styled CharSequence, so you must use
   3110      * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
   3111      * retrieve it.
   3112      */
   3113     public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
   3114 
   3115     /**
   3116      * A constant String that is associated with the Intent, used with
   3117      * {@link #ACTION_SEND} to supply an alternative to {@link #EXTRA_TEXT}
   3118      * as HTML formatted text.  Note that you <em>must</em> also supply
   3119      * {@link #EXTRA_TEXT}.
   3120      */
   3121     public static final String EXTRA_HTML_TEXT = "android.intent.extra.HTML_TEXT";
   3122 
   3123     /**
   3124      * A content: URI holding a stream of data associated with the Intent,
   3125      * used with {@link #ACTION_SEND} to supply the data being sent.
   3126      */
   3127     public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
   3128 
   3129     /**
   3130      * A String[] holding e-mail addresses that should be delivered to.
   3131      */
   3132     public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
   3133 
   3134     /**
   3135      * A String[] holding e-mail addresses that should be carbon copied.
   3136      */
   3137     public static final String EXTRA_CC       = "android.intent.extra.CC";
   3138 
   3139     /**
   3140      * A String[] holding e-mail addresses that should be blind carbon copied.
   3141      */
   3142     public static final String EXTRA_BCC      = "android.intent.extra.BCC";
   3143 
   3144     /**
   3145      * A constant string holding the desired subject line of a message.
   3146      */
   3147     public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
   3148 
   3149     /**
   3150      * An Intent describing the choices you would like shown with
   3151      * {@link #ACTION_PICK_ACTIVITY}.
   3152      */
   3153     public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
   3154 
   3155     /**
   3156      * A CharSequence dialog title to provide to the user when used with a
   3157      * {@link #ACTION_CHOOSER}.
   3158      */
   3159     public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
   3160 
   3161     /**
   3162      * A Parcelable[] of {@link Intent} or
   3163      * {@link android.content.pm.LabeledIntent} objects as set with
   3164      * {@link #putExtra(String, Parcelable[])} of additional activities to place
   3165      * a the front of the list of choices, when shown to the user with a
   3166      * {@link #ACTION_CHOOSER}.
   3167      */
   3168     public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
   3169 
   3170     /**
   3171      * A Bundle forming a mapping of potential target package names to different extras Bundles
   3172      * to add to the default intent extras in {@link #EXTRA_INTENT} when used with
   3173      * {@link #ACTION_CHOOSER}. Each key should be a package name. The package need not
   3174      * be currently installed on the device.
   3175      *
   3176      * <p>An application may choose to provide alternate extras for the case where a user
   3177      * selects an activity from a predetermined set of target packages. If the activity
   3178      * the user selects from the chooser belongs to a package with its package name as
   3179      * a key in this bundle, the corresponding extras for that package will be merged with
   3180      * the extras already present in the intent at {@link #EXTRA_INTENT}. If a replacement
   3181      * extra has the same key as an extra already present in the intent it will overwrite
   3182      * the extra from the intent.</p>
   3183      *
   3184      * <p><em>Examples:</em>
   3185      * <ul>
   3186      *     <li>An application may offer different {@link #EXTRA_TEXT} to an application
   3187      *     when sharing with it via {@link #ACTION_SEND}, augmenting a link with additional query
   3188      *     parameters for that target.</li>
   3189      *     <li>An application may offer additional metadata for known targets of a given intent
   3190      *     to pass along information only relevant to that target such as account or content
   3191      *     identifiers already known to that application.</li>
   3192      * </ul></p>
   3193      */
   3194     public static final String EXTRA_REPLACEMENT_EXTRAS =
   3195             "android.intent.extra.REPLACEMENT_EXTRAS";
   3196 
   3197     /**
   3198      * An {@link IntentSender} that will be notified if a user successfully chooses a target
   3199      * component to handle an action in an {@link #ACTION_CHOOSER} activity. The IntentSender
   3200      * will have the extra {@link #EXTRA_CHOSEN_COMPONENT} appended to it containing the
   3201      * {@link ComponentName} of the chosen component.
   3202      *
   3203      * <p>In some situations this callback may never come, for example if the user abandons
   3204      * the chooser, switches to another task or any number of other reasons. Apps should not
   3205      * be written assuming that this callback will always occur.</p>
   3206      */
   3207     public static final String EXTRA_CHOSEN_COMPONENT_INTENT_SENDER =
   3208             "android.intent.extra.CHOSEN_COMPONENT_INTENT_SENDER";
   3209 
   3210     /**
   3211      * The {@link ComponentName} chosen by the user to complete an action.
   3212      *
   3213      * @see #EXTRA_CHOSEN_COMPONENT_INTENT_SENDER
   3214      */
   3215     public static final String EXTRA_CHOSEN_COMPONENT = "android.intent.extra.CHOSEN_COMPONENT";
   3216 
   3217     /**
   3218      * A {@link android.view.KeyEvent} object containing the event that
   3219      * triggered the creation of the Intent it is in.
   3220      */
   3221     public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
   3222 
   3223     /**
   3224      * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
   3225      * before shutting down.
   3226      *
   3227      * {@hide}
   3228      */
   3229     public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
   3230 
   3231     /**
   3232      * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
   3233      * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
   3234      * of restarting the application.
   3235      */
   3236     public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
   3237 
   3238     /**
   3239      * A String holding the phone number originally entered in
   3240      * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
   3241      * number to call in a {@link android.content.Intent#ACTION_CALL}.
   3242      */
   3243     public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
   3244 
   3245     /**
   3246      * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
   3247      * intents to supply the uid the package had been assigned.  Also an optional
   3248      * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
   3249      * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
   3250      * purpose.
   3251      */
   3252     public static final String EXTRA_UID = "android.intent.extra.UID";
   3253 
   3254     /**
   3255      * @hide String array of package names.
   3256      */
   3257     public static final String EXTRA_PACKAGES = "android.intent.extra.PACKAGES";
   3258 
   3259     /**
   3260      * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
   3261      * intents to indicate whether this represents a full uninstall (removing
   3262      * both the code and its data) or a partial uninstall (leaving its data,
   3263      * implying that this is an update).
   3264      */
   3265     public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
   3266 
   3267     /**
   3268      * @hide
   3269      * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
   3270      * intents to indicate that at this point the package has been removed for
   3271      * all users on the device.
   3272      */
   3273     public static final String EXTRA_REMOVED_FOR_ALL_USERS
   3274             = "android.intent.extra.REMOVED_FOR_ALL_USERS";
   3275 
   3276     /**
   3277      * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
   3278      * intents to indicate that this is a replacement of the package, so this
   3279      * broadcast will immediately be followed by an add broadcast for a
   3280      * different version of the same package.
   3281      */
   3282     public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
   3283 
   3284     /**
   3285      * Used as an int extra field in {@link android.app.AlarmManager} intents
   3286      * to tell the application being invoked how many pending alarms are being
   3287      * delievered with the intent.  For one-shot alarms this will always be 1.
   3288      * For recurring alarms, this might be greater than 1 if the device was
   3289      * asleep or powered off at the time an earlier alarm would have been
   3290      * delivered.
   3291      */
   3292     public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
   3293 
   3294     /**
   3295      * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
   3296      * intents to request the dock state.  Possible values are
   3297      * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
   3298      * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
   3299      * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}, or
   3300      * {@link android.content.Intent#EXTRA_DOCK_STATE_LE_DESK}, or
   3301      * {@link android.content.Intent#EXTRA_DOCK_STATE_HE_DESK}.
   3302      */
   3303     public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
   3304 
   3305     /**
   3306      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   3307      * to represent that the phone is not in any dock.
   3308      */
   3309     public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
   3310 
   3311     /**
   3312      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   3313      * to represent that the phone is in a desk dock.
   3314      */
   3315     public static final int EXTRA_DOCK_STATE_DESK = 1;
   3316 
   3317     /**
   3318      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   3319      * to represent that the phone is in a car dock.
   3320      */
   3321     public static final int EXTRA_DOCK_STATE_CAR = 2;
   3322 
   3323     /**
   3324      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   3325      * to represent that the phone is in a analog (low end) dock.
   3326      */
   3327     public static final int EXTRA_DOCK_STATE_LE_DESK = 3;
   3328 
   3329     /**
   3330      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   3331      * to represent that the phone is in a digital (high end) dock.
   3332      */
   3333     public static final int EXTRA_DOCK_STATE_HE_DESK = 4;
   3334 
   3335     /**
   3336      * Boolean that can be supplied as meta-data with a dock activity, to
   3337      * indicate that the dock should take over the home key when it is active.
   3338      */
   3339     public static final String METADATA_DOCK_HOME = "android.dock_home";
   3340 
   3341     /**
   3342      * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
   3343      * the bug report.
   3344      */
   3345     public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
   3346 
   3347     /**
   3348      * Used in the extra field in the remote intent. It's astring token passed with the
   3349      * remote intent.
   3350      */
   3351     public static final String EXTRA_REMOTE_INTENT_TOKEN =
   3352             "android.intent.extra.remote_intent_token";
   3353 
   3354     /**
   3355      * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
   3356      * will contain only the first name in the list.
   3357      */
   3358     @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
   3359             "android.intent.extra.changed_component_name";
   3360 
   3361     /**
   3362      * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED},
   3363      * and contains a string array of all of the components that have changed.  If
   3364      * the state of the overall package has changed, then it will contain an entry
   3365      * with the package name itself.
   3366      */
   3367     public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
   3368             "android.intent.extra.changed_component_name_list";
   3369 
   3370     /**
   3371      * This field is part of
   3372      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
   3373      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
   3374      * and contains a string array of all of the components that have changed.
   3375      */
   3376     public static final String EXTRA_CHANGED_PACKAGE_LIST =
   3377             "android.intent.extra.changed_package_list";
   3378 
   3379     /**
   3380      * This field is part of
   3381      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
   3382      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
   3383      * and contains an integer array of uids of all of the components
   3384      * that have changed.
   3385      */
   3386     public static final String EXTRA_CHANGED_UID_LIST =
   3387             "android.intent.extra.changed_uid_list";
   3388 
   3389     /**
   3390      * @hide
   3391      * Magic extra system code can use when binding, to give a label for
   3392      * who it is that has bound to a service.  This is an integer giving
   3393      * a framework string resource that can be displayed to the user.
   3394      */
   3395     public static final String EXTRA_CLIENT_LABEL =
   3396             "android.intent.extra.client_label";
   3397 
   3398     /**
   3399      * @hide
   3400      * Magic extra system code can use when binding, to give a PendingIntent object
   3401      * that can be launched for the user to disable the system's use of this
   3402      * service.
   3403      */
   3404     public static final String EXTRA_CLIENT_INTENT =
   3405             "android.intent.extra.client_intent";
   3406 
   3407     /**
   3408      * Extra used to indicate that an intent should only return data that is on
   3409      * the local device. This is a boolean extra; the default is false. If true,
   3410      * an implementation should only allow the user to select data that is
   3411      * already on the device, not requiring it be downloaded from a remote
   3412      * service when opened.
   3413      *
   3414      * @see #ACTION_GET_CONTENT
   3415      * @see #ACTION_OPEN_DOCUMENT
   3416      * @see #ACTION_OPEN_DOCUMENT_TREE
   3417      * @see #ACTION_CREATE_DOCUMENT
   3418      */
   3419     public static final String EXTRA_LOCAL_ONLY =
   3420             "android.intent.extra.LOCAL_ONLY";
   3421 
   3422     /**
   3423      * Extra used to indicate that an intent can allow the user to select and
   3424      * return multiple items. This is a boolean extra; the default is false. If
   3425      * true, an implementation is allowed to present the user with a UI where
   3426      * they can pick multiple items that are all returned to the caller. When
   3427      * this happens, they should be returned as the {@link #getClipData()} part
   3428      * of the result Intent.
   3429      *
   3430      * @see #ACTION_GET_CONTENT
   3431      * @see #ACTION_OPEN_DOCUMENT
   3432      */
   3433     public static final String EXTRA_ALLOW_MULTIPLE =
   3434             "android.intent.extra.ALLOW_MULTIPLE";
   3435 
   3436     /**
   3437      * The integer userHandle carried with broadcast intents related to addition, removal and
   3438      * switching of users and managed profiles - {@link #ACTION_USER_ADDED},
   3439      * {@link #ACTION_USER_REMOVED} and {@link #ACTION_USER_SWITCHED}.
   3440      *
   3441      * @hide
   3442      */
   3443     public static final String EXTRA_USER_HANDLE =
   3444             "android.intent.extra.user_handle";
   3445 
   3446     /**
   3447      * The UserHandle carried with broadcasts intents related to addition and removal of managed
   3448      * profiles - {@link #ACTION_MANAGED_PROFILE_ADDED} and {@link #ACTION_MANAGED_PROFILE_REMOVED}.
   3449      */
   3450     public static final String EXTRA_USER =
   3451             "android.intent.extra.USER";
   3452 
   3453     /**
   3454      * Extra used in the response from a BroadcastReceiver that handles
   3455      * {@link #ACTION_GET_RESTRICTION_ENTRIES}. The type of the extra is
   3456      * <code>ArrayList&lt;RestrictionEntry&gt;</code>.
   3457      */
   3458     public static final String EXTRA_RESTRICTIONS_LIST = "android.intent.extra.restrictions_list";
   3459 
   3460     /**
   3461      * Extra sent in the intent to the BroadcastReceiver that handles
   3462      * {@link #ACTION_GET_RESTRICTION_ENTRIES}. The type of the extra is a Bundle containing
   3463      * the restrictions as key/value pairs.
   3464      */
   3465     public static final String EXTRA_RESTRICTIONS_BUNDLE =
   3466             "android.intent.extra.restrictions_bundle";
   3467 
   3468     /**
   3469      * Extra used in the response from a BroadcastReceiver that handles
   3470      * {@link #ACTION_GET_RESTRICTION_ENTRIES}.
   3471      */
   3472     public static final String EXTRA_RESTRICTIONS_INTENT =
   3473             "android.intent.extra.restrictions_intent";
   3474 
   3475     /**
   3476      * Extra used to communicate a set of acceptable MIME types. The type of the
   3477      * extra is {@code String[]}. Values may be a combination of concrete MIME
   3478      * types (such as "image/png") and/or partial MIME types (such as
   3479      * "audio/*").
   3480      *
   3481      * @see #ACTION_GET_CONTENT
   3482      * @see #ACTION_OPEN_DOCUMENT
   3483      */
   3484     public static final String EXTRA_MIME_TYPES = "android.intent.extra.MIME_TYPES";
   3485 
   3486     /**
   3487      * Optional extra for {@link #ACTION_SHUTDOWN} that allows the sender to qualify that
   3488      * this shutdown is only for the user space of the system, not a complete shutdown.
   3489      * When this is true, hardware devices can use this information to determine that
   3490      * they shouldn't do a complete shutdown of their device since this is not a
   3491      * complete shutdown down to the kernel, but only user space restarting.
   3492      * The default if not supplied is false.
   3493      */
   3494     public static final String EXTRA_SHUTDOWN_USERSPACE_ONLY
   3495             = "android.intent.extra.SHUTDOWN_USERSPACE_ONLY";
   3496 
   3497     /**
   3498      * Optional boolean extra for {@link #ACTION_TIME_CHANGED} that indicates the
   3499      * user has set their time format preferences to the 24 hour format.
   3500      *
   3501      * @hide for internal use only.
   3502      */
   3503     public static final String EXTRA_TIME_PREF_24_HOUR_FORMAT =
   3504             "android.intent.extra.TIME_PREF_24_HOUR_FORMAT";
   3505 
   3506     /** {@hide} */
   3507     public static final String EXTRA_REASON = "android.intent.extra.REASON";
   3508 
   3509     // ---------------------------------------------------------------------
   3510     // ---------------------------------------------------------------------
   3511     // Intent flags (see mFlags variable).
   3512 
   3513     /** @hide */
   3514     @IntDef(flag = true, value = {
   3515             FLAG_GRANT_READ_URI_PERMISSION, FLAG_GRANT_WRITE_URI_PERMISSION,
   3516             FLAG_GRANT_PERSISTABLE_URI_PERMISSION, FLAG_GRANT_PREFIX_URI_PERMISSION })
   3517     @Retention(RetentionPolicy.SOURCE)
   3518     public @interface GrantUriMode {}
   3519 
   3520     /** @hide */
   3521     @IntDef(flag = true, value = {
   3522             FLAG_GRANT_READ_URI_PERMISSION, FLAG_GRANT_WRITE_URI_PERMISSION })
   3523     @Retention(RetentionPolicy.SOURCE)
   3524     public @interface AccessUriMode {}
   3525 
   3526     /**
   3527      * Test if given mode flags specify an access mode, which must be at least
   3528      * read and/or write.
   3529      *
   3530      * @hide
   3531      */
   3532     public static boolean isAccessUriMode(int modeFlags) {
   3533         return (modeFlags & (Intent.FLAG_GRANT_READ_URI_PERMISSION
   3534                 | Intent.FLAG_GRANT_WRITE_URI_PERMISSION)) != 0;
   3535     }
   3536 
   3537     /**
   3538      * If set, the recipient of this Intent will be granted permission to
   3539      * perform read operations on the URI in the Intent's data and any URIs
   3540      * specified in its ClipData.  When applying to an Intent's ClipData,
   3541      * all URIs as well as recursive traversals through data or other ClipData
   3542      * in Intent items will be granted; only the grant flags of the top-level
   3543      * Intent are used.
   3544      */
   3545     public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
   3546     /**
   3547      * If set, the recipient of this Intent will be granted permission to
   3548      * perform write operations on the URI in the Intent's data and any URIs
   3549      * specified in its ClipData.  When applying to an Intent's ClipData,
   3550      * all URIs as well as recursive traversals through data or other ClipData
   3551      * in Intent items will be granted; only the grant flags of the top-level
   3552      * Intent are used.
   3553      */
   3554     public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
   3555     /**
   3556      * Can be set by the caller to indicate that this Intent is coming from
   3557      * a background operation, not from direct user interaction.
   3558      */
   3559     public static final int FLAG_FROM_BACKGROUND = 0x00000004;
   3560     /**
   3561      * A flag you can enable for debugging: when set, log messages will be
   3562      * printed during the resolution of this intent to show you what has
   3563      * been found to create the final resolved list.
   3564      */
   3565     public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
   3566     /**
   3567      * If set, this intent will not match any components in packages that
   3568      * are currently stopped.  If this is not set, then the default behavior
   3569      * is to include such applications in the result.
   3570      */
   3571     public static final int FLAG_EXCLUDE_STOPPED_PACKAGES = 0x00000010;
   3572     /**
   3573      * If set, this intent will always match any components in packages that
   3574      * are currently stopped.  This is the default behavior when
   3575      * {@link #FLAG_EXCLUDE_STOPPED_PACKAGES} is not set.  If both of these
   3576      * flags are set, this one wins (it allows overriding of exclude for
   3577      * places where the framework may automatically set the exclude flag).
   3578      */
   3579     public static final int FLAG_INCLUDE_STOPPED_PACKAGES = 0x00000020;
   3580 
   3581     /**
   3582      * When combined with {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or
   3583      * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, the URI permission grant can be
   3584      * persisted across device reboots until explicitly revoked with
   3585      * {@link Context#revokeUriPermission(Uri, int)}. This flag only offers the
   3586      * grant for possible persisting; the receiving application must call
   3587      * {@link ContentResolver#takePersistableUriPermission(Uri, int)} to
   3588      * actually persist.
   3589      *
   3590      * @see ContentResolver#takePersistableUriPermission(Uri, int)
   3591      * @see ContentResolver#releasePersistableUriPermission(Uri, int)
   3592      * @see ContentResolver#getPersistedUriPermissions()
   3593      * @see ContentResolver#getOutgoingPersistedUriPermissions()
   3594      */
   3595     public static final int FLAG_GRANT_PERSISTABLE_URI_PERMISSION = 0x00000040;
   3596 
   3597     /**
   3598      * When combined with {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or
   3599      * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, the URI permission grant
   3600      * applies to any URI that is a prefix match against the original granted
   3601      * URI. (Without this flag, the URI must match exactly for access to be
   3602      * granted.) Another URI is considered a prefix match only when scheme,
   3603      * authority, and all path segments defined by the prefix are an exact
   3604      * match.
   3605      */
   3606     public static final int FLAG_GRANT_PREFIX_URI_PERMISSION = 0x00000080;
   3607 
   3608     /**
   3609      * If set, the new activity is not kept in the history stack.  As soon as
   3610      * the user navigates away from it, the activity is finished.  This may also
   3611      * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
   3612      * noHistory} attribute.
   3613      *
   3614      * <p>If set, {@link android.app.Activity#onActivityResult onActivityResult()}
   3615      * is never invoked when the current activity starts a new activity which
   3616      * sets a result and finishes.
   3617      */
   3618     public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
   3619     /**
   3620      * If set, the activity will not be launched if it is already running
   3621      * at the top of the history stack.
   3622      */
   3623     public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
   3624     /**
   3625      * If set, this activity will become the start of a new task on this
   3626      * history stack.  A task (from the activity that started it to the
   3627      * next task activity) defines an atomic group of activities that the
   3628      * user can move to.  Tasks can be moved to the foreground and background;
   3629      * all of the activities inside of a particular task always remain in
   3630      * the same order.  See
   3631      * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
   3632      * Stack</a> for more information about tasks.
   3633      *
   3634      * <p>This flag is generally used by activities that want
   3635      * to present a "launcher" style behavior: they give the user a list of
   3636      * separate things that can be done, which otherwise run completely
   3637      * independently of the activity launching them.
   3638      *
   3639      * <p>When using this flag, if a task is already running for the activity
   3640      * you are now starting, then a new activity will not be started; instead,
   3641      * the current task will simply be brought to the front of the screen with
   3642      * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
   3643      * to disable this behavior.
   3644      *
   3645      * <p>This flag can not be used when the caller is requesting a result from
   3646      * the activity being launched.
   3647      */
   3648     public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
   3649     /**
   3650      * This flag is used to create a new task and launch an activity into it.
   3651      * This flag is always paired with either {@link #FLAG_ACTIVITY_NEW_DOCUMENT}
   3652      * or {@link #FLAG_ACTIVITY_NEW_TASK}. In both cases these flags alone would
   3653      * search through existing tasks for ones matching this Intent. Only if no such
   3654      * task is found would a new task be created. When paired with
   3655      * FLAG_ACTIVITY_MULTIPLE_TASK both of these behaviors are modified to skip
   3656      * the search for a matching task and unconditionally start a new task.
   3657      *
   3658      * <strong>When used with {@link #FLAG_ACTIVITY_NEW_TASK} do not use this
   3659      * flag unless you are implementing your own
   3660      * top-level application launcher.</strong>  Used in conjunction with
   3661      * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
   3662      * behavior of bringing an existing task to the foreground.  When set,
   3663      * a new task is <em>always</em> started to host the Activity for the
   3664      * Intent, regardless of whether there is already an existing task running
   3665      * the same thing.
   3666      *
   3667      * <p><strong>Because the default system does not include graphical task management,
   3668      * you should not use this flag unless you provide some way for a user to
   3669      * return back to the tasks you have launched.</strong>
   3670      *
   3671      * See {@link #FLAG_ACTIVITY_NEW_DOCUMENT} for details of this flag's use for
   3672      * creating new document tasks.
   3673      *
   3674      * <p>This flag is ignored if one of {@link #FLAG_ACTIVITY_NEW_TASK} or
   3675      * {@link #FLAG_ACTIVITY_NEW_DOCUMENT} is not also set.
   3676      *
   3677      * <p>See
   3678      * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
   3679      * Stack</a> for more information about tasks.
   3680      *
   3681      * @see #FLAG_ACTIVITY_NEW_DOCUMENT
   3682      * @see #FLAG_ACTIVITY_NEW_TASK
   3683      */
   3684     public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
   3685     /**
   3686      * If set, and the activity being launched is already running in the
   3687      * current task, then instead of launching a new instance of that activity,
   3688      * all of the other activities on top of it will be closed and this Intent
   3689      * will be delivered to the (now on top) old activity as a new Intent.
   3690      *
   3691      * <p>For example, consider a task consisting of the activities: A, B, C, D.
   3692      * If D calls startActivity() with an Intent that resolves to the component
   3693      * of activity B, then C and D will be finished and B receive the given
   3694      * Intent, resulting in the stack now being: A, B.
   3695      *
   3696      * <p>The currently running instance of activity B in the above example will
   3697      * either receive the new intent you are starting here in its
   3698      * onNewIntent() method, or be itself finished and restarted with the
   3699      * new intent.  If it has declared its launch mode to be "multiple" (the
   3700      * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
   3701      * the same intent, then it will be finished and re-created; for all other
   3702      * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
   3703      * Intent will be delivered to the current instance's onNewIntent().
   3704      *
   3705      * <p>This launch mode can also be used to good effect in conjunction with
   3706      * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
   3707      * of a task, it will bring any currently running instance of that task
   3708      * to the foreground, and then clear it to its root state.  This is
   3709      * especially useful, for example, when launching an activity from the
   3710      * notification manager.
   3711      *
   3712      * <p>See
   3713      * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
   3714      * Stack</a> for more information about tasks.
   3715      */
   3716     public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
   3717     /**
   3718      * If set and this intent is being used to launch a new activity from an
   3719      * existing one, then the reply target of the existing activity will be
   3720      * transfered to the new activity.  This way the new activity can call
   3721      * {@link android.app.Activity#setResult} and have that result sent back to
   3722      * the reply target of the original activity.
   3723      */
   3724     public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
   3725     /**
   3726      * If set and this intent is being used to launch a new activity from an
   3727      * existing one, the current activity will not be counted as the top
   3728      * activity for deciding whether the new intent should be delivered to
   3729      * the top instead of starting a new one.  The previous activity will
   3730      * be used as the top, with the assumption being that the current activity
   3731      * will finish itself immediately.
   3732      */
   3733     public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
   3734     /**
   3735      * If set, the new activity is not kept in the list of recently launched
   3736      * activities.
   3737      */
   3738     public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
   3739     /**
   3740      * This flag is not normally set by application code, but set for you by
   3741      * the system as described in the
   3742      * {@link android.R.styleable#AndroidManifestActivity_launchMode
   3743      * launchMode} documentation for the singleTask mode.
   3744      */
   3745     public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
   3746     /**
   3747      * If set, and this activity is either being started in a new task or
   3748      * bringing to the top an existing task, then it will be launched as
   3749      * the front door of the task.  This will result in the application of
   3750      * any affinities needed to have that task in the proper state (either
   3751      * moving activities to or from it), or simply resetting that task to
   3752      * its initial state if needed.
   3753      */
   3754     public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
   3755     /**
   3756      * This flag is not normally set by application code, but set for you by
   3757      * the system if this activity is being launched from history
   3758      * (longpress home key).
   3759      */
   3760     public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
   3761     /**
   3762      * @deprecated As of API 21 this performs identically to
   3763      * {@link #FLAG_ACTIVITY_NEW_DOCUMENT} which should be used instead of this.
   3764      */
   3765     public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
   3766     /**
   3767      * This flag is used to open a document into a new task rooted at the activity launched
   3768      * by this Intent. Through the use of this flag, or its equivalent attribute,
   3769      * {@link android.R.attr#documentLaunchMode} multiple instances of the same activity
   3770      * containing different documents will appear in the recent tasks list.
   3771      *
   3772      * <p>The use of the activity attribute form of this,
   3773      * {@link android.R.attr#documentLaunchMode}, is
   3774      * preferred over the Intent flag described here. The attribute form allows the
   3775      * Activity to specify multiple document behavior for all launchers of the Activity
   3776      * whereas using this flag requires each Intent that launches the Activity to specify it.
   3777      *
   3778      * <p>Note that the default semantics of this flag w.r.t. whether the recents entry for
   3779      * it is kept after the activity is finished is different than the use of
   3780      * {@link #FLAG_ACTIVITY_NEW_TASK} and {@link android.R.attr#documentLaunchMode} -- if
   3781      * this flag is being used to create a new recents entry, then by default that entry
   3782      * will be removed once the activity is finished.  You can modify this behavior with
   3783      * {@link #FLAG_ACTIVITY_RETAIN_IN_RECENTS}.
   3784      *
   3785      * <p>FLAG_ACTIVITY_NEW_DOCUMENT may be used in conjunction with {@link
   3786      * #FLAG_ACTIVITY_MULTIPLE_TASK}. When used alone it is the
   3787      * equivalent of the Activity manifest specifying {@link
   3788      * android.R.attr#documentLaunchMode}="intoExisting". When used with
   3789      * FLAG_ACTIVITY_MULTIPLE_TASK it is the equivalent of the Activity manifest specifying
   3790      * {@link android.R.attr#documentLaunchMode}="always".
   3791      *
   3792      * Refer to {@link android.R.attr#documentLaunchMode} for more information.
   3793      *
   3794      * @see android.R.attr#documentLaunchMode
   3795      * @see #FLAG_ACTIVITY_MULTIPLE_TASK
   3796      */
   3797     public static final int FLAG_ACTIVITY_NEW_DOCUMENT = FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET;
   3798     /**
   3799      * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
   3800      * callback from occurring on the current frontmost activity before it is
   3801      * paused as the newly-started activity is brought to the front.
   3802      *
   3803      * <p>Typically, an activity can rely on that callback to indicate that an
   3804      * explicit user action has caused their activity to be moved out of the
   3805      * foreground. The callback marks an appropriate point in the activity's
   3806      * lifecycle for it to dismiss any notifications that it intends to display
   3807      * "until the user has seen them," such as a blinking LED.
   3808      *
   3809      * <p>If an activity is ever started via any non-user-driven events such as
   3810      * phone-call receipt or an alarm handler, this flag should be passed to {@link
   3811      * Context#startActivity Context.startActivity}, ensuring that the pausing
   3812      * activity does not think the user has acknowledged its notification.
   3813      */
   3814     public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
   3815     /**
   3816      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   3817      * this flag will cause the launched activity to be brought to the front of its
   3818      * task's history stack if it is already running.
   3819      *
   3820      * <p>For example, consider a task consisting of four activities: A, B, C, D.
   3821      * If D calls startActivity() with an Intent that resolves to the component
   3822      * of activity B, then B will be brought to the front of the history stack,
   3823      * with this resulting order:  A, C, D, B.
   3824      *
   3825      * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
   3826      * specified.
   3827      */
   3828     public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
   3829     /**
   3830      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   3831      * this flag will prevent the system from applying an activity transition
   3832      * animation to go to the next activity state.  This doesn't mean an
   3833      * animation will never run -- if another activity change happens that doesn't
   3834      * specify this flag before the activity started here is displayed, then
   3835      * that transition will be used.  This flag can be put to good use
   3836      * when you are going to do a series of activity operations but the
   3837      * animation seen by the user shouldn't be driven by the first activity
   3838      * change but rather a later one.
   3839      */
   3840     public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
   3841     /**
   3842      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   3843      * this flag will cause any existing task that would be associated with the
   3844      * activity to be cleared before the activity is started.  That is, the activity
   3845      * becomes the new root of an otherwise empty task, and any old activities
   3846      * are finished.  This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
   3847      */
   3848     public static final int FLAG_ACTIVITY_CLEAR_TASK = 0X00008000;
   3849     /**
   3850      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   3851      * this flag will cause a newly launching task to be placed on top of the current
   3852      * home activity task (if there is one).  That is, pressing back from the task
   3853      * will always return the user to home even if that was not the last activity they
   3854      * saw.   This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
   3855      */
   3856     public static final int FLAG_ACTIVITY_TASK_ON_HOME = 0X00004000;
   3857     /**
   3858      * By default a document created by {@link #FLAG_ACTIVITY_NEW_DOCUMENT} will
   3859      * have its entry in recent tasks removed when the user closes it (with back
   3860      * or however else it may finish()). If you would like to instead allow the
   3861      * document to be kept in recents so that it can be re-launched, you can use
   3862      * this flag. When set and the task's activity is finished, the recents
   3863      * entry will remain in the interface for the user to re-launch it, like a
   3864      * recents entry for a top-level application.
   3865      * <p>
   3866      * The receiving activity can override this request with
   3867      * {@link android.R.attr#autoRemoveFromRecents} or by explcitly calling
   3868      * {@link android.app.Activity#finishAndRemoveTask()
   3869      * Activity.finishAndRemoveTask()}.
   3870      */
   3871     public static final int FLAG_ACTIVITY_RETAIN_IN_RECENTS = 0x00002000;
   3872 
   3873     /**
   3874      * If set, when sending a broadcast only registered receivers will be
   3875      * called -- no BroadcastReceiver components will be launched.
   3876      */
   3877     public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
   3878     /**
   3879      * If set, when sending a broadcast the new broadcast will replace
   3880      * any existing pending broadcast that matches it.  Matching is defined
   3881      * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning
   3882      * true for the intents of the two broadcasts.  When a match is found,
   3883      * the new broadcast (and receivers associated with it) will replace the
   3884      * existing one in the pending broadcast list, remaining at the same
   3885      * position in the list.
   3886      *
   3887      * <p>This flag is most typically used with sticky broadcasts, which
   3888      * only care about delivering the most recent values of the broadcast
   3889      * to their receivers.
   3890      */
   3891     public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
   3892     /**
   3893      * If set, when sending a broadcast the recipient is allowed to run at
   3894      * foreground priority, with a shorter timeout interval.  During normal
   3895      * broadcasts the receivers are not automatically hoisted out of the
   3896      * background priority class.
   3897      */
   3898     public static final int FLAG_RECEIVER_FOREGROUND = 0x10000000;
   3899     /**
   3900      * If this is an ordered broadcast, don't allow receivers to abort the broadcast.
   3901      * They can still propagate results through to later receivers, but they can not prevent
   3902      * later receivers from seeing the broadcast.
   3903      */
   3904     public static final int FLAG_RECEIVER_NO_ABORT = 0x08000000;
   3905     /**
   3906      * If set, when sending a broadcast <i>before boot has completed</i> only
   3907      * registered receivers will be called -- no BroadcastReceiver components
   3908      * will be launched.  Sticky intent state will be recorded properly even
   3909      * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
   3910      * is specified in the broadcast intent, this flag is unnecessary.
   3911      *
   3912      * <p>This flag is only for use by system sevices as a convenience to
   3913      * avoid having to implement a more complex mechanism around detection
   3914      * of boot completion.
   3915      *
   3916      * @hide
   3917      */
   3918     public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x04000000;
   3919     /**
   3920      * Set when this broadcast is for a boot upgrade, a special mode that
   3921      * allows the broadcast to be sent before the system is ready and launches
   3922      * the app process with no providers running in it.
   3923      * @hide
   3924      */
   3925     public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x02000000;
   3926 
   3927     /**
   3928      * @hide Flags that can't be changed with PendingIntent.
   3929      */
   3930     public static final int IMMUTABLE_FLAGS = FLAG_GRANT_READ_URI_PERMISSION
   3931             | FLAG_GRANT_WRITE_URI_PERMISSION | FLAG_GRANT_PERSISTABLE_URI_PERMISSION
   3932             | FLAG_GRANT_PREFIX_URI_PERMISSION;
   3933 
   3934     // ---------------------------------------------------------------------
   3935     // ---------------------------------------------------------------------
   3936     // toUri() and parseUri() options.
   3937 
   3938     /**
   3939      * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
   3940      * always has the "intent:" scheme.  This syntax can be used when you want
   3941      * to later disambiguate between URIs that are intended to describe an
   3942      * Intent vs. all others that should be treated as raw URIs.  When used
   3943      * with {@link #parseUri}, any other scheme will result in a generic
   3944      * VIEW action for that raw URI.
   3945      */
   3946     public static final int URI_INTENT_SCHEME = 1<<0;
   3947 
   3948     /**
   3949      * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
   3950      * always has the "android-app:" scheme.  This is a variation of
   3951      * {@link #URI_INTENT_SCHEME} whose format is simpler for the case of an
   3952      * http/https URI being delivered to a specific package name.  The format
   3953      * is:
   3954      *
   3955      * <pre class="prettyprint">
   3956      * android-app://{package_id}[/{scheme}[/{host}[/{path}]]][#Intent;{...}]</pre>
   3957      *
   3958      * <p>In this scheme, only the <code>package_id</code> is required.  If you include a host,
   3959      * you must also include a scheme; including a path also requires both a host and a scheme.
   3960      * The final #Intent; fragment can be used without a scheme, host, or path.
   3961      * Note that this can not be
   3962      * used with intents that have a {@link #setSelector}, since the base intent
   3963      * will always have an explicit package name.</p>
   3964      *
   3965      * <p>Some examples of how this scheme maps to Intent objects:</p>
   3966      * <table border="2" width="85%" align="center" frame="hsides" rules="rows">
   3967      *     <colgroup align="left" />
   3968      *     <colgroup align="left" />
   3969      *     <thead>
   3970      *     <tr><th>URI</th> <th>Intent</th></tr>
   3971      *     </thead>
   3972      *
   3973      *     <tbody>
   3974      *     <tr><td><code>android-app://com.example.app</code></td>
   3975      *         <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0">
   3976      *             <tr><td>Action: </td><td>{@link #ACTION_MAIN}</td></tr>
   3977      *             <tr><td>Package: </td><td><code>com.example.app</code></td></tr>
   3978      *         </table></td>
   3979      *     </tr>
   3980      *     <tr><td><code>android-app://com.example.app/http/example.com</code></td>
   3981      *         <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0">
   3982      *             <tr><td>Action: </td><td>{@link #ACTION_VIEW}</td></tr>
   3983      *             <tr><td>Data: </td><td><code>http://example.com/</code></td></tr>
   3984      *             <tr><td>Package: </td><td><code>com.example.app</code></td></tr>
   3985      *         </table></td>
   3986      *     </tr>
   3987      *     <tr><td><code>android-app://com.example.app/http/example.com/foo?1234</code></td>
   3988      *         <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0">
   3989      *             <tr><td>Action: </td><td>{@link #ACTION_VIEW}</td></tr>
   3990      *             <tr><td>Data: </td><td><code>http://example.com/foo?1234</code></td></tr>
   3991      *             <tr><td>Package: </td><td><code>com.example.app</code></td></tr>
   3992      *         </table></td>
   3993      *     </tr>
   3994      *     <tr><td><code>android-app://com.example.app/<br />#Intent;action=com.example.MY_ACTION;end</code></td>
   3995      *         <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0">
   3996      *             <tr><td>Action: </td><td><code>com.example.MY_ACTION</code></td></tr>
   3997      *             <tr><td>Package: </td><td><code>com.example.app</code></td></tr>
   3998      *         </table></td>
   3999      *     </tr>
   4000      *     <tr><td><code>android-app://com.example.app/http/example.com/foo?1234<br />#Intent;action=com.example.MY_ACTION;end</code></td>
   4001      *         <td><table style="margin:0;border:0;cellpadding:0;cellspacing:0">
   4002      *             <tr><td>Action: </td><td><code>com.example.MY_ACTION</code></td></tr>
   4003      *             <tr><td>Data: </td><td><code>http://example.com/foo?1234</code></td></tr>
   4004      *             <tr><td>Package: </td><td><code>com.example.app</code></td></tr>
   4005      *         </table></td>
   4006      *     </tr>
   4007      *     <tr><td><code>android-app://com.example.app/<br />#Intent;action=com.example.MY_ACTION;<br />i.some_int=100;S.some_str=hello;end</code></td>
   4008      *         <td><table border="" style="margin:0" >
   4009      *             <tr><td>Action: </td><td><code>com.example.MY_ACTION</code></td></tr>
   4010      *             <tr><td>Package: </td><td><code>com.example.app</code></td></tr>
   4011      *             <tr><td>Extras: </td><td><code>some_int=(int)100<br />some_str=(String)hello</code></td></tr>
   4012      *         </table></td>
   4013      *     </tr>
   4014      *     </tbody>
   4015      * </table>
   4016      */
   4017     public static final int URI_ANDROID_APP_SCHEME = 1<<1;
   4018 
   4019     /**
   4020      * Flag for use with {@link #toUri} and {@link #parseUri}: allow parsing
   4021      * of unsafe information.  In particular, the flags {@link #FLAG_GRANT_READ_URI_PERMISSION},
   4022      * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, {@link #FLAG_GRANT_PERSISTABLE_URI_PERMISSION},
   4023      * and {@link #FLAG_GRANT_PREFIX_URI_PERMISSION} flags can not be set, so that the
   4024      * generated Intent can not cause unexpected data access to happen.
   4025      *
   4026      * <p>If you do not trust the source of the URI being parsed, you should still do further
   4027      * processing to protect yourself from it.  In particular, when using it to start an
   4028      * activity you should usually add in {@link #CATEGORY_BROWSABLE} to limit the activities
   4029      * that can handle it.</p>
   4030      */
   4031     public static final int URI_ALLOW_UNSAFE = 1<<2;
   4032 
   4033     // ---------------------------------------------------------------------
   4034 
   4035     private String mAction;
   4036     private Uri mData;
   4037     private String mType;
   4038     private String mPackage;
   4039     private ComponentName mComponent;
   4040     private int mFlags;
   4041     private ArraySet<String> mCategories;
   4042     private Bundle mExtras;
   4043     private Rect mSourceBounds;
   4044     private Intent mSelector;
   4045     private ClipData mClipData;
   4046     private int mContentUserHint = UserHandle.USER_CURRENT;
   4047 
   4048     // ---------------------------------------------------------------------
   4049 
   4050     /**
   4051      * Create an empty intent.
   4052      */
   4053     public Intent() {
   4054     }
   4055 
   4056     /**
   4057      * Copy constructor.
   4058      */
   4059     public Intent(Intent o) {
   4060         this.mAction = o.mAction;
   4061         this.mData = o.mData;
   4062         this.mType = o.mType;
   4063         this.mPackage = o.mPackage;
   4064         this.mComponent = o.mComponent;
   4065         this.mFlags = o.mFlags;
   4066         this.mContentUserHint = o.mContentUserHint;
   4067         if (o.mCategories != null) {
   4068             this.mCategories = new ArraySet<String>(o.mCategories);
   4069         }
   4070         if (o.mExtras != null) {
   4071             this.mExtras = new Bundle(o.mExtras);
   4072         }
   4073         if (o.mSourceBounds != null) {
   4074             this.mSourceBounds = new Rect(o.mSourceBounds);
   4075         }
   4076         if (o.mSelector != null) {
   4077             this.mSelector = new Intent(o.mSelector);
   4078         }
   4079         if (o.mClipData != null) {
   4080             this.mClipData = new ClipData(o.mClipData);
   4081         }
   4082     }
   4083 
   4084     @Override
   4085     public Object clone() {
   4086         return new Intent(this);
   4087     }
   4088 
   4089     private Intent(Intent o, boolean all) {
   4090         this.mAction = o.mAction;
   4091         this.mData = o.mData;
   4092         this.mType = o.mType;
   4093         this.mPackage = o.mPackage;
   4094         this.mComponent = o.mComponent;
   4095         if (o.mCategories != null) {
   4096             this.mCategories = new ArraySet<String>(o.mCategories);
   4097         }
   4098     }
   4099 
   4100     /**
   4101      * Make a clone of only the parts of the Intent that are relevant for
   4102      * filter matching: the action, data, type, component, and categories.
   4103      */
   4104     public Intent cloneFilter() {
   4105         return new Intent(this, false);
   4106     }
   4107 
   4108     /**
   4109      * Create an intent with a given action.  All other fields (data, type,
   4110      * class) are null.  Note that the action <em>must</em> be in a
   4111      * namespace because Intents are used globally in the system -- for
   4112      * example the system VIEW action is android.intent.action.VIEW; an
   4113      * application's custom action would be something like
   4114      * com.google.app.myapp.CUSTOM_ACTION.
   4115      *
   4116      * @param action The Intent action, such as ACTION_VIEW.
   4117      */
   4118     public Intent(String action) {
   4119         setAction(action);
   4120     }
   4121 
   4122     /**
   4123      * Create an intent with a given action and for a given data url.  Note
   4124      * that the action <em>must</em> be in a namespace because Intents are
   4125      * used globally in the system -- for example the system VIEW action is
   4126      * android.intent.action.VIEW; an application's custom action would be
   4127      * something like com.google.app.myapp.CUSTOM_ACTION.
   4128      *
   4129      * <p><em>Note: scheme and host name matching in the Android framework is
   4130      * case-sensitive, unlike the formal RFC.  As a result,
   4131      * you should always ensure that you write your Uri with these elements
   4132      * using lower case letters, and normalize any Uris you receive from
   4133      * outside of Android to ensure the scheme and host is lower case.</em></p>
   4134      *
   4135      * @param action The Intent action, such as ACTION_VIEW.
   4136      * @param uri The Intent data URI.
   4137      */
   4138     public Intent(String action, Uri uri) {
   4139         setAction(action);
   4140         mData = uri;
   4141     }
   4142 
   4143     /**
   4144      * Create an intent for a specific component.  All other fields (action, data,
   4145      * type, class) are null, though they can be modified later with explicit
   4146      * calls.  This provides a convenient way to create an intent that is
   4147      * intended to execute a hard-coded class name, rather than relying on the
   4148      * system to find an appropriate class for you; see {@link #setComponent}
   4149      * for more information on the repercussions of this.
   4150      *
   4151      * @param packageContext A Context of the application package implementing
   4152      * this class.
   4153      * @param cls The component class that is to be used for the intent.
   4154      *
   4155      * @see #setClass
   4156      * @see #setComponent
   4157      * @see #Intent(String, android.net.Uri , Context, Class)
   4158      */
   4159     public Intent(Context packageContext, Class<?> cls) {
   4160         mComponent = new ComponentName(packageContext, cls);
   4161     }
   4162 
   4163     /**
   4164      * Create an intent for a specific component with a specified action and data.
   4165      * This is equivalent to using {@link #Intent(String, android.net.Uri)} to
   4166      * construct the Intent and then calling {@link #setClass} to set its
   4167      * class.
   4168      *
   4169      * <p><em>Note: scheme and host name matching in the Android framework is
   4170      * case-sensitive, unlike the formal RFC.  As a result,
   4171      * you should always ensure that you write your Uri with these elements
   4172      * using lower case letters, and normalize any Uris you receive from
   4173      * outside of Android to ensure the scheme and host is lower case.</em></p>
   4174      *
   4175      * @param action The Intent action, such as ACTION_VIEW.
   4176      * @param uri The Intent data URI.
   4177      * @param packageContext A Context of the application package implementing
   4178      * this class.
   4179      * @param cls The component class that is to be used for the intent.
   4180      *
   4181      * @see #Intent(String, android.net.Uri)
   4182      * @see #Intent(Context, Class)
   4183      * @see #setClass
   4184      * @see #setComponent
   4185      */
   4186     public Intent(String action, Uri uri,
   4187             Context packageContext, Class<?> cls) {
   4188         setAction(action);
   4189         mData = uri;
   4190         mComponent = new ComponentName(packageContext, cls);
   4191     }
   4192 
   4193     /**
   4194      * Create an intent to launch the main (root) activity of a task.  This
   4195      * is the Intent that is started when the application's is launched from
   4196      * Home.  For anything else that wants to launch an application in the
   4197      * same way, it is important that they use an Intent structured the same
   4198      * way, and can use this function to ensure this is the case.
   4199      *
   4200      * <p>The returned Intent has the given Activity component as its explicit
   4201      * component, {@link #ACTION_MAIN} as its action, and includes the
   4202      * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
   4203      * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
   4204      * to do that through {@link #addFlags(int)} on the returned Intent.
   4205      *
   4206      * @param mainActivity The main activity component that this Intent will
   4207      * launch.
   4208      * @return Returns a newly created Intent that can be used to launch the
   4209      * activity as a main application entry.
   4210      *
   4211      * @see #setClass
   4212      * @see #setComponent
   4213      */
   4214     public static Intent makeMainActivity(ComponentName mainActivity) {
   4215         Intent intent = new Intent(ACTION_MAIN);
   4216         intent.setComponent(mainActivity);
   4217         intent.addCategory(CATEGORY_LAUNCHER);
   4218         return intent;
   4219     }
   4220 
   4221     /**
   4222      * Make an Intent for the main activity of an application, without
   4223      * specifying a specific activity to run but giving a selector to find
   4224      * the activity.  This results in a final Intent that is structured
   4225      * the same as when the application is launched from
   4226      * Home.  For anything else that wants to launch an application in the
   4227      * same way, it is important that they use an Intent structured the same
   4228      * way, and can use this function to ensure this is the case.
   4229      *
   4230      * <p>The returned Intent has {@link #ACTION_MAIN} as its action, and includes the
   4231      * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
   4232      * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
   4233      * to do that through {@link #addFlags(int)} on the returned Intent.
   4234      *
   4235      * @param selectorAction The action name of the Intent's selector.
   4236      * @param selectorCategory The name of a category to add to the Intent's
   4237      * selector.
   4238      * @return Returns a newly created Intent that can be used to launch the
   4239      * activity as a main application entry.
   4240      *
   4241      * @see #setSelector(Intent)
   4242      */
   4243     public static Intent makeMainSelectorActivity(String selectorAction,
   4244             String selectorCategory) {
   4245         Intent intent = new Intent(ACTION_MAIN);
   4246         intent.addCategory(CATEGORY_LAUNCHER);
   4247         Intent selector = new Intent();
   4248         selector.setAction(selectorAction);
   4249         selector.addCategory(selectorCategory);
   4250         intent.setSelector(selector);
   4251         return intent;
   4252     }
   4253 
   4254     /**
   4255      * Make an Intent that can be used to re-launch an application's task
   4256      * in its base state.  This is like {@link #makeMainActivity(ComponentName)},
   4257      * but also sets the flags {@link #FLAG_ACTIVITY_NEW_TASK} and
   4258      * {@link #FLAG_ACTIVITY_CLEAR_TASK}.
   4259      *
   4260      * @param mainActivity The activity component that is the root of the
   4261      * task; this is the activity that has been published in the application's
   4262      * manifest as the main launcher icon.
   4263      *
   4264      * @return Returns a newly created Intent that can be used to relaunch the
   4265      * activity's task in its root state.
   4266      */
   4267     public static Intent makeRestartActivityTask(ComponentName mainActivity) {
   4268         Intent intent = makeMainActivity(mainActivity);
   4269         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
   4270                 | Intent.FLAG_ACTIVITY_CLEAR_TASK);
   4271         return intent;
   4272     }
   4273 
   4274     /**
   4275      * Call {@link #parseUri} with 0 flags.
   4276      * @deprecated Use {@link #parseUri} instead.
   4277      */
   4278     @Deprecated
   4279     public static Intent getIntent(String uri) throws URISyntaxException {
   4280         return parseUri(uri, 0);
   4281     }
   4282 
   4283     /**
   4284      * Create an intent from a URI.  This URI may encode the action,
   4285      * category, and other intent fields, if it was returned by
   4286      * {@link #toUri}.  If the Intent was not generate by toUri(), its data
   4287      * will be the entire URI and its action will be ACTION_VIEW.
   4288      *
   4289      * <p>The URI given here must not be relative -- that is, it must include
   4290      * the scheme and full path.
   4291      *
   4292      * @param uri The URI to turn into an Intent.
   4293      * @param flags Additional processing flags.  Either 0,
   4294      * {@link #URI_INTENT_SCHEME}, or {@link #URI_ANDROID_APP_SCHEME}.
   4295      *
   4296      * @return Intent The newly created Intent object.
   4297      *
   4298      * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
   4299      * it bad (as parsed by the Uri class) or the Intent data within the
   4300      * URI is invalid.
   4301      *
   4302      * @see #toUri
   4303      */
   4304     public static Intent parseUri(String uri, int flags) throws URISyntaxException {
   4305         int i = 0;
   4306         try {
   4307             final boolean androidApp = uri.startsWith("android-app:");
   4308 
   4309             // Validate intent scheme if requested.
   4310             if ((flags&(URI_INTENT_SCHEME|URI_ANDROID_APP_SCHEME)) != 0) {
   4311                 if (!uri.startsWith("intent:") && !androidApp) {
   4312                     Intent intent = new Intent(ACTION_VIEW);
   4313                     try {
   4314                         intent.setData(Uri.parse(uri));
   4315                     } catch (IllegalArgumentException e) {
   4316                         throw new URISyntaxException(uri, e.getMessage());
   4317                     }
   4318                     return intent;
   4319                 }
   4320             }
   4321 
   4322             i = uri.lastIndexOf("#");
   4323             // simple case
   4324             if (i == -1) {
   4325                 if (!androidApp) {
   4326                     return new Intent(ACTION_VIEW, Uri.parse(uri));
   4327                 }
   4328 
   4329             // old format Intent URI
   4330             } else if (!uri.startsWith("#Intent;", i)) {
   4331                 if (!androidApp) {
   4332                     return getIntentOld(uri, flags);
   4333                 } else {
   4334                     i = -1;
   4335                 }
   4336             }
   4337 
   4338             // new format
   4339             Intent intent = new Intent(ACTION_VIEW);
   4340             Intent baseIntent = intent;
   4341             boolean explicitAction = false;
   4342             boolean inSelector = false;
   4343 
   4344             // fetch data part, if present
   4345             String scheme = null;
   4346             String data;
   4347             if (i >= 0) {
   4348                 data = uri.substring(0, i);
   4349                 i += 8; // length of "#Intent;"
   4350             } else {
   4351                 data = uri;
   4352             }
   4353 
   4354             // loop over contents of Intent, all name=value;
   4355             while (i >= 0 && !uri.startsWith("end", i)) {
   4356                 int eq = uri.indexOf('=', i);
   4357                 if (eq < 0) eq = i-1;
   4358                 int semi = uri.indexOf(';', i);
   4359                 String value = eq < semi ? Uri.decode(uri.substring(eq + 1, semi)) : "";
   4360 
   4361                 // action
   4362                 if (uri.startsWith("action=", i)) {
   4363                     intent.setAction(value);
   4364                     if (!inSelector) {
   4365                         explicitAction = true;
   4366                     }
   4367                 }
   4368 
   4369                 // categories
   4370                 else if (uri.startsWith("category=", i)) {
   4371                     intent.addCategory(value);
   4372                 }
   4373 
   4374                 // type
   4375                 else if (uri.startsWith("type=", i)) {
   4376                     intent.mType = value;
   4377                 }
   4378 
   4379                 // launch flags
   4380                 else if (uri.startsWith("launchFlags=", i)) {
   4381                     intent.mFlags = Integer.decode(value).intValue();
   4382                     if ((flags& URI_ALLOW_UNSAFE) == 0) {
   4383                         intent.mFlags &= ~IMMUTABLE_FLAGS;
   4384                     }
   4385                 }
   4386 
   4387                 // package
   4388                 else if (uri.startsWith("package=", i)) {
   4389                     intent.mPackage = value;
   4390                 }
   4391 
   4392                 // component
   4393                 else if (uri.startsWith("component=", i)) {
   4394                     intent.mComponent = ComponentName.unflattenFromString(value);
   4395                 }
   4396 
   4397                 // scheme
   4398                 else if (uri.startsWith("scheme=", i)) {
   4399                     if (inSelector) {
   4400                         intent.mData = Uri.parse(value + ":");
   4401                     } else {
   4402                         scheme = value;
   4403                     }
   4404                 }
   4405 
   4406                 // source bounds
   4407                 else if (uri.startsWith("sourceBounds=", i)) {
   4408                     intent.mSourceBounds = Rect.unflattenFromString(value);
   4409                 }
   4410 
   4411                 // selector
   4412                 else if (semi == (i+3) && uri.startsWith("SEL", i)) {
   4413                     intent = new Intent();
   4414                     inSelector = true;
   4415                 }
   4416 
   4417                 // extra
   4418                 else {
   4419                     String key = Uri.decode(uri.substring(i + 2, eq));
   4420                     // create Bundle if it doesn't already exist
   4421                     if (intent.mExtras == null) intent.mExtras = new Bundle();
   4422                     Bundle b = intent.mExtras;
   4423                     // add EXTRA
   4424                     if      (uri.startsWith("S.", i)) b.putString(key, value);
   4425                     else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
   4426                     else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
   4427                     else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
   4428                     else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
   4429                     else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
   4430                     else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
   4431                     else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
   4432                     else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
   4433                     else throw new URISyntaxException(uri, "unknown EXTRA type", i);
   4434                 }
   4435 
   4436                 // move to the next item
   4437                 i = semi + 1;
   4438             }
   4439 
   4440             if (inSelector) {
   4441                 // The Intent had a selector; fix it up.
   4442                 if (baseIntent.mPackage == null) {
   4443                     baseIntent.setSelector(intent);
   4444                 }
   4445                 intent = baseIntent;
   4446             }
   4447 
   4448             if (data != null) {
   4449                 if (data.startsWith("intent:")) {
   4450                     data = data.substring(7);
   4451                     if (scheme != null) {
   4452                         data = scheme + ':' + data;
   4453                     }
   4454                 } else if (data.startsWith("android-app:")) {
   4455                     if (data.charAt(12) == '/' && data.charAt(13) == '/') {
   4456                         // Correctly formed android-app, first part is package name.
   4457                         int end = data.indexOf('/', 14);
   4458                         if (end < 0) {
   4459                             // All we have is a package name.
   4460                             intent.mPackage = data.substring(14);
   4461                             if (!explicitAction) {
   4462                                 intent.setAction(ACTION_MAIN);
   4463                             }
   4464                             data = "";
   4465                         } else {
   4466                             // Target the Intent at the given package name always.
   4467                             String authority = null;
   4468                             intent.mPackage = data.substring(14, end);
   4469                             int newEnd;
   4470                             if ((end+1) < data.length()) {
   4471                                 if ((newEnd=data.indexOf('/', end+1)) >= 0) {
   4472                                     // Found a scheme, remember it.
   4473                                     scheme = data.substring(end+1, newEnd);
   4474                                     end = newEnd;
   4475                                     if (end < data.length() && (newEnd=data.indexOf('/', end+1)) >= 0) {
   4476                                         // Found a authority, remember it.
   4477                                         authority = data.substring(end+1, newEnd);
   4478                                         end = newEnd;
   4479                                     }
   4480                                 } else {
   4481                                     // All we have is a scheme.
   4482                                     scheme = data.substring(end+1);
   4483                                 }
   4484                             }
   4485                             if (scheme == null) {
   4486                                 // If there was no scheme, then this just targets the package.
   4487                                 if (!explicitAction) {
   4488                                     intent.setAction(ACTION_MAIN);
   4489                                 }
   4490                                 data = "";
   4491                             } else if (authority == null) {
   4492                                 data = scheme + ":";
   4493                             } else {
   4494                                 data = scheme + "://" + authority + data.substring(end);
   4495                             }
   4496                         }
   4497                     } else {
   4498                         data = "";
   4499                     }
   4500                 }
   4501 
   4502                 if (data.length() > 0) {
   4503                     try {
   4504                         intent.mData = Uri.parse(data);
   4505                     } catch (IllegalArgumentException e) {
   4506                         throw new URISyntaxException(uri, e.getMessage());
   4507                     }
   4508                 }
   4509             }
   4510 
   4511             return intent;
   4512 
   4513         } catch (IndexOutOfBoundsException e) {
   4514             throw new URISyntaxException(uri, "illegal Intent URI format", i);
   4515         }
   4516     }
   4517 
   4518     public static Intent getIntentOld(String uri) throws URISyntaxException {
   4519         return getIntentOld(uri, 0);
   4520     }
   4521 
   4522     private static Intent getIntentOld(String uri, int flags) throws URISyntaxException {
   4523         Intent intent;
   4524 
   4525         int i = uri.lastIndexOf('#');
   4526         if (i >= 0) {
   4527             String action = null;
   4528             final int intentFragmentStart = i;
   4529             boolean isIntentFragment = false;
   4530 
   4531             i++;
   4532 
   4533             if (uri.regionMatches(i, "action(", 0, 7)) {
   4534                 isIntentFragment = true;
   4535                 i += 7;
   4536                 int j = uri.indexOf(')', i);
   4537                 action = uri.substring(i, j);
   4538                 i = j + 1;
   4539             }
   4540 
   4541             intent = new Intent(action);
   4542 
   4543             if (uri.regionMatches(i, "categories(", 0, 11)) {
   4544                 isIntentFragment = true;
   4545                 i += 11;
   4546                 int j = uri.indexOf(')', i);
   4547                 while (i < j) {
   4548                     int sep = uri.indexOf('!', i);
   4549                     if (sep < 0 || sep > j) sep = j;
   4550                     if (i < sep) {
   4551                         intent.addCategory(uri.substring(i, sep));
   4552                     }
   4553                     i = sep + 1;
   4554                 }
   4555                 i = j + 1;
   4556             }
   4557 
   4558             if (uri.regionMatches(i, "type(", 0, 5)) {
   4559                 isIntentFragment = true;
   4560                 i += 5;
   4561                 int j = uri.indexOf(')', i);
   4562                 intent.mType = uri.substring(i, j);
   4563                 i = j + 1;
   4564             }
   4565 
   4566             if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
   4567                 isIntentFragment = true;
   4568                 i += 12;
   4569                 int j = uri.indexOf(')', i);
   4570                 intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
   4571                 if ((flags& URI_ALLOW_UNSAFE) == 0) {
   4572                     intent.mFlags &= ~IMMUTABLE_FLAGS;
   4573                 }
   4574                 i = j + 1;
   4575             }
   4576 
   4577             if (uri.regionMatches(i, "component(", 0, 10)) {
   4578                 isIntentFragment = true;
   4579                 i += 10;
   4580                 int j = uri.indexOf(')', i);
   4581                 int sep = uri.indexOf('!', i);
   4582                 if (sep >= 0 && sep < j) {
   4583                     String pkg = uri.substring(i, sep);
   4584                     String cls = uri.substring(sep + 1, j);
   4585                     intent.mComponent = new ComponentName(pkg, cls);
   4586                 }
   4587                 i = j + 1;
   4588             }
   4589 
   4590             if (uri.regionMatches(i, "extras(", 0, 7)) {
   4591                 isIntentFragment = true;
   4592                 i += 7;
   4593 
   4594                 final int closeParen = uri.indexOf(')', i);
   4595                 if (closeParen == -1) throw new URISyntaxException(uri,
   4596                         "EXTRA missing trailing ')'", i);
   4597 
   4598                 while (i < closeParen) {
   4599                     // fetch the key value
   4600                     int j = uri.indexOf('=', i);
   4601                     if (j <= i + 1 || i >= closeParen) {
   4602                         throw new URISyntaxException(uri, "EXTRA missing '='", i);
   4603                     }
   4604                     char type = uri.charAt(i);
   4605                     i++;
   4606                     String key = uri.substring(i, j);
   4607                     i = j + 1;
   4608 
   4609                     // get type-value
   4610                     j = uri.indexOf('!', i);
   4611                     if (j == -1 || j >= closeParen) j = closeParen;
   4612                     if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
   4613                     String value = uri.substring(i, j);
   4614                     i = j;
   4615 
   4616                     // create Bundle if it doesn't already exist
   4617                     if (intent.mExtras == null) intent.mExtras = new Bundle();
   4618 
   4619                     // add item to bundle
   4620                     try {
   4621                         switch (type) {
   4622                             case 'S':
   4623                                 intent.mExtras.putString(key, Uri.decode(value));
   4624                                 break;
   4625                             case 'B':
   4626                                 intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
   4627                                 break;
   4628                             case 'b':
   4629                                 intent.mExtras.putByte(key, Byte.parseByte(value));
   4630                                 break;
   4631                             case 'c':
   4632                                 intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
   4633                                 break;
   4634                             case 'd':
   4635                                 intent.mExtras.putDouble(key, Double.parseDouble(value));
   4636                                 break;
   4637                             case 'f':
   4638                                 intent.mExtras.putFloat(key, Float.parseFloat(value));
   4639                                 break;
   4640                             case 'i':
   4641                                 intent.mExtras.putInt(key, Integer.parseInt(value));
   4642                                 break;
   4643                             case 'l':
   4644                                 intent.mExtras.putLong(key, Long.parseLong(value));
   4645                                 break;
   4646                             case 's':
   4647                                 intent.mExtras.putShort(key, Short.parseShort(value));
   4648                                 break;
   4649                             default:
   4650                                 throw new URISyntaxException(uri, "EXTRA has unknown type", i);
   4651                         }
   4652                     } catch (NumberFormatException e) {
   4653                         throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
   4654                     }
   4655 
   4656                     char ch = uri.charAt(i);
   4657                     if (ch == ')') break;
   4658                     if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
   4659                     i++;
   4660                 }
   4661             }
   4662 
   4663             if (isIntentFragment) {
   4664                 intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
   4665             } else {
   4666                 intent.mData = Uri.parse(uri);
   4667             }
   4668 
   4669             if (intent.mAction == null) {
   4670                 // By default, if no action is specified, then use VIEW.
   4671                 intent.mAction = ACTION_VIEW;
   4672             }
   4673 
   4674         } else {
   4675             intent = new Intent(ACTION_VIEW, Uri.parse(uri));
   4676         }
   4677 
   4678         return intent;
   4679     }
   4680 
   4681     /**
   4682      * Retrieve the general action to be performed, such as
   4683      * {@link #ACTION_VIEW}.  The action describes the general way the rest of
   4684      * the information in the intent should be interpreted -- most importantly,
   4685      * what to do with the data returned by {@link #getData}.
   4686      *
   4687      * @return The action of this intent or null if none is specified.
   4688      *
   4689      * @see #setAction
   4690      */
   4691     public String getAction() {
   4692         return mAction;
   4693     }
   4694 
   4695     /**
   4696      * Retrieve data this intent is operating on.  This URI specifies the name
   4697      * of the data; often it uses the content: scheme, specifying data in a
   4698      * content provider.  Other schemes may be handled by specific activities,
   4699      * such as http: by the web browser.
   4700      *
   4701      * @return The URI of the data this intent is targeting or null.
   4702      *
   4703      * @see #getScheme
   4704      * @see #setData
   4705      */
   4706     public Uri getData() {
   4707         return mData;
   4708     }
   4709 
   4710     /**
   4711      * The same as {@link #getData()}, but returns the URI as an encoded
   4712      * String.
   4713      */
   4714     public String getDataString() {
   4715         return mData != null ? mData.toString() : null;
   4716     }
   4717 
   4718     /**
   4719      * Return the scheme portion of the intent's data.  If the data is null or
   4720      * does not include a scheme, null is returned.  Otherwise, the scheme
   4721      * prefix without the final ':' is returned, i.e. "http".
   4722      *
   4723      * <p>This is the same as calling getData().getScheme() (and checking for
   4724      * null data).
   4725      *
   4726      * @return The scheme of this intent.
   4727      *
   4728      * @see #getData
   4729      */
   4730     public String getScheme() {
   4731         return mData != null ? mData.getScheme() : null;
   4732     }
   4733 
   4734     /**
   4735      * Retrieve any explicit MIME type included in the intent.  This is usually
   4736      * null, as the type is determined by the intent data.
   4737      *
   4738      * @return If a type was manually set, it is returned; else null is
   4739      *         returned.
   4740      *
   4741      * @see #resolveType(ContentResolver)
   4742      * @see #setType
   4743      */
   4744     public String getType() {
   4745         return mType;
   4746     }
   4747 
   4748     /**
   4749      * Return the MIME data type of this intent.  If the type field is
   4750      * explicitly set, that is simply returned.  Otherwise, if the data is set,
   4751      * the type of that data is returned.  If neither fields are set, a null is
   4752      * returned.
   4753      *
   4754      * @return The MIME type of this intent.
   4755      *
   4756      * @see #getType
   4757      * @see #resolveType(ContentResolver)
   4758      */
   4759     public String resolveType(Context context) {
   4760         return resolveType(context.getContentResolver());
   4761     }
   4762 
   4763     /**
   4764      * Return the MIME data type of this intent.  If the type field is
   4765      * explicitly set, that is simply returned.  Otherwise, if the data is set,
   4766      * the type of that data is returned.  If neither fields are set, a null is
   4767      * returned.
   4768      *
   4769      * @param resolver A ContentResolver that can be used to determine the MIME
   4770      *                 type of the intent's data.
   4771      *
   4772      * @return The MIME type of this intent.
   4773      *
   4774      * @see #getType
   4775      * @see #resolveType(Context)
   4776      */
   4777     public String resolveType(ContentResolver resolver) {
   4778         if (mType != null) {
   4779             return mType;
   4780         }
   4781         if (mData != null) {
   4782             if ("content".equals(mData.getScheme())) {
   4783                 return resolver.getType(mData);
   4784             }
   4785         }
   4786         return null;
   4787     }
   4788 
   4789     /**
   4790      * Return the MIME data type of this intent, only if it will be needed for
   4791      * intent resolution.  This is not generally useful for application code;
   4792      * it is used by the frameworks for communicating with back-end system
   4793      * services.
   4794      *
   4795      * @param resolver A ContentResolver that can be used to determine the MIME
   4796      *                 type of the intent's data.
   4797      *
   4798      * @return The MIME type of this intent, or null if it is unknown or not
   4799      *         needed.
   4800      */
   4801     public String resolveTypeIfNeeded(ContentResolver resolver) {
   4802         if (mComponent != null) {
   4803             return mType;
   4804         }
   4805         return resolveType(resolver);
   4806     }
   4807 
   4808     /**
   4809      * Check if a category exists in the intent.
   4810      *
   4811      * @param category The category to check.
   4812      *
   4813      * @return boolean True if the intent contains the category, else false.
   4814      *
   4815      * @see #getCategories
   4816      * @see #addCategory
   4817      */
   4818     public boolean hasCategory(String category) {
   4819         return mCategories != null && mCategories.contains(category);
   4820     }
   4821 
   4822     /**
   4823      * Return the set of all categories in the intent.  If there are no categories,
   4824      * returns NULL.
   4825      *
   4826      * @return The set of categories you can examine.  Do not modify!
   4827      *
   4828      * @see #hasCategory
   4829      * @see #addCategory
   4830      */
   4831     public Set<String> getCategories() {
   4832         return mCategories;
   4833     }
   4834 
   4835     /**
   4836      * Return the specific selector associated with this Intent.  If there is
   4837      * none, returns null.  See {@link #setSelector} for more information.
   4838      *
   4839      * @see #setSelector
   4840      */
   4841     public Intent getSelector() {
   4842         return mSelector;
   4843     }
   4844 
   4845     /**
   4846      * Return the {@link ClipData} associated with this Intent.  If there is
   4847      * none, returns null.  See {@link #setClipData} for more information.
   4848      *
   4849      * @see #setClipData
   4850      */
   4851     public ClipData getClipData() {
   4852         return mClipData;
   4853     }
   4854 
   4855     /** @hide */
   4856     public int getContentUserHint() {
   4857         return mContentUserHint;
   4858     }
   4859 
   4860     /**
   4861      * Sets the ClassLoader that will be used when unmarshalling
   4862      * any Parcelable values from the extras of this Intent.
   4863      *
   4864      * @param loader a ClassLoader, or null to use the default loader
   4865      * at the time of unmarshalling.
   4866      */
   4867     public void setExtrasClassLoader(ClassLoader loader) {
   4868         if (mExtras != null) {
   4869             mExtras.setClassLoader(loader);
   4870         }
   4871     }
   4872 
   4873     /**
   4874      * Returns true if an extra value is associated with the given name.
   4875      * @param name the extra's name
   4876      * @return true if the given extra is present.
   4877      */
   4878     public boolean hasExtra(String name) {
   4879         return mExtras != null && mExtras.containsKey(name);
   4880     }
   4881 
   4882     /**
   4883      * Returns true if the Intent's extras contain a parcelled file descriptor.
   4884      * @return true if the Intent contains a parcelled file descriptor.
   4885      */
   4886     public boolean hasFileDescriptors() {
   4887         return mExtras != null && mExtras.hasFileDescriptors();
   4888     }
   4889 
   4890     /** @hide */
   4891     public void setAllowFds(boolean allowFds) {
   4892         if (mExtras != null) {
   4893             mExtras.setAllowFds(allowFds);
   4894         }
   4895     }
   4896 
   4897     /**
   4898      * Retrieve extended data from the intent.
   4899      *
   4900      * @param name The name of the desired item.
   4901      *
   4902      * @return the value of an item that previously added with putExtra()
   4903      * or null if none was found.
   4904      *
   4905      * @deprecated
   4906      * @hide
   4907      */
   4908     @Deprecated
   4909     public Object getExtra(String name) {
   4910         return getExtra(name, null);
   4911     }
   4912 
   4913     /**
   4914      * Retrieve extended data from the intent.
   4915      *
   4916      * @param name The name of the desired item.
   4917      * @param defaultValue the value to be returned if no value of the desired
   4918      * type is stored with the given name.
   4919      *
   4920      * @return the value of an item that previously added with putExtra()
   4921      * or the default value if none was found.
   4922      *
   4923      * @see #putExtra(String, boolean)
   4924      */
   4925     public boolean getBooleanExtra(String name, boolean defaultValue) {
   4926         return mExtras == null ? defaultValue :
   4927             mExtras.getBoolean(name, defaultValue);
   4928     }
   4929 
   4930     /**
   4931      * Retrieve extended data from the intent.
   4932      *
   4933      * @param name The name of the desired item.
   4934      * @param defaultValue the value to be returned if no value of the desired
   4935      * type is stored with the given name.
   4936      *
   4937      * @return the value of an item that previously added with putExtra()
   4938      * or the default value if none was found.
   4939      *
   4940      * @see #putExtra(String, byte)
   4941      */
   4942     public byte getByteExtra(String name, byte defaultValue) {
   4943         return mExtras == null ? defaultValue :
   4944             mExtras.getByte(name, defaultValue);
   4945     }
   4946 
   4947     /**
   4948      * Retrieve extended data from the intent.
   4949      *
   4950      * @param name The name of the desired item.
   4951      * @param defaultValue the value to be returned if no value of the desired
   4952      * type is stored with the given name.
   4953      *
   4954      * @return the value of an item that previously added with putExtra()
   4955      * or the default value if none was found.
   4956      *
   4957      * @see #putExtra(String, short)
   4958      */
   4959     public short getShortExtra(String name, short defaultValue) {
   4960         return mExtras == null ? defaultValue :
   4961             mExtras.getShort(name, defaultValue);
   4962     }
   4963 
   4964     /**
   4965      * Retrieve extended data from the intent.
   4966      *
   4967      * @param name The name of the desired item.
   4968      * @param defaultValue the value to be returned if no value of the desired
   4969      * type is stored with the given name.
   4970      *
   4971      * @return the value of an item that previously added with putExtra()
   4972      * or the default value if none was found.
   4973      *
   4974      * @see #putExtra(String, char)
   4975      */
   4976     public char getCharExtra(String name, char defaultValue) {
   4977         return mExtras == null ? defaultValue :
   4978             mExtras.getChar(name, defaultValue);
   4979     }
   4980 
   4981     /**
   4982      * Retrieve extended data from the intent.
   4983      *
   4984      * @param name The name of the desired item.
   4985      * @param defaultValue the value to be returned if no value of the desired
   4986      * type is stored with the given name.
   4987      *
   4988      * @return the value of an item that previously added with putExtra()
   4989      * or the default value if none was found.
   4990      *
   4991      * @see #putExtra(String, int)
   4992      */
   4993     public int getIntExtra(String name, int defaultValue) {
   4994         return mExtras == null ? defaultValue :
   4995             mExtras.getInt(name, defaultValue);
   4996     }
   4997 
   4998     /**
   4999      * Retrieve extended data from the intent.
   5000      *
   5001      * @param name The name of the desired item.
   5002      * @param defaultValue the value to be returned if no value of the desired
   5003      * type is stored with the given name.
   5004      *
   5005      * @return the value of an item that previously added with putExtra()
   5006      * or the default value if none was found.
   5007      *
   5008      * @see #putExtra(String, long)
   5009      */
   5010     public long getLongExtra(String name, long defaultValue) {
   5011         return mExtras == null ? defaultValue :
   5012             mExtras.getLong(name, defaultValue);
   5013     }
   5014 
   5015     /**
   5016      * Retrieve extended data from the intent.
   5017      *
   5018      * @param name The name of the desired item.
   5019      * @param defaultValue the value to be returned if no value of the desired
   5020      * type is stored with the given name.
   5021      *
   5022      * @return the value of an item that previously added with putExtra(),
   5023      * or the default value if no such item is present
   5024      *
   5025      * @see #putExtra(String, float)
   5026      */
   5027     public float getFloatExtra(String name, float defaultValue) {
   5028         return mExtras == null ? defaultValue :
   5029             mExtras.getFloat(name, defaultValue);
   5030     }
   5031 
   5032     /**
   5033      * Retrieve extended data from the intent.
   5034      *
   5035      * @param name The name of the desired item.
   5036      * @param defaultValue the value to be returned if no value of the desired
   5037      * type is stored with the given name.
   5038      *
   5039      * @return the value of an item that previously added with putExtra()
   5040      * or the default value if none was found.
   5041      *
   5042      * @see #putExtra(String, double)
   5043      */
   5044     public double getDoubleExtra(String name, double defaultValue) {
   5045         return mExtras == null ? defaultValue :
   5046             mExtras.getDouble(name, defaultValue);
   5047     }
   5048 
   5049     /**
   5050      * Retrieve extended data from the intent.
   5051      *
   5052      * @param name The name of the desired item.
   5053      *
   5054      * @return the value of an item that previously added with putExtra()
   5055      * or null if no String value was found.
   5056      *
   5057      * @see #putExtra(String, String)
   5058      */
   5059     public String getStringExtra(String name) {
   5060         return mExtras == null ? null : mExtras.getString(name);
   5061     }
   5062 
   5063     /**
   5064      * Retrieve extended data from the intent.
   5065      *
   5066      * @param name The name of the desired item.
   5067      *
   5068      * @return the value of an item that previously added with putExtra()
   5069      * or null if no CharSequence value was found.
   5070      *
   5071      * @see #putExtra(String, CharSequence)
   5072      */
   5073     public CharSequence getCharSequenceExtra(String name) {
   5074         return mExtras == null ? null : mExtras.getCharSequence(name);
   5075     }
   5076 
   5077     /**
   5078      * Retrieve extended data from the intent.
   5079      *
   5080      * @param name The name of the desired item.
   5081      *
   5082      * @return the value of an item that previously added with putExtra()
   5083      * or null if no Parcelable value was found.
   5084      *
   5085      * @see #putExtra(String, Parcelable)
   5086      */
   5087     public <T extends Parcelable> T getParcelableExtra(String name) {
   5088         return mExtras == null ? null : mExtras.<T>getParcelable(name);
   5089     }
   5090 
   5091     /**
   5092      * Retrieve extended data from the intent.
   5093      *
   5094      * @param name The name of the desired item.
   5095      *
   5096      * @return the value of an item that previously added with putExtra()
   5097      * or null if no Parcelable[] value was found.
   5098      *
   5099      * @see #putExtra(String, Parcelable[])
   5100      */
   5101     public Parcelable[] getParcelableArrayExtra(String name) {
   5102         return mExtras == null ? null : mExtras.getParcelableArray(name);
   5103     }
   5104 
   5105     /**
   5106      * Retrieve extended data from the intent.
   5107      *
   5108      * @param name The name of the desired item.
   5109      *
   5110      * @return the value of an item that previously added with putExtra()
   5111      * or null if no ArrayList<Parcelable> value was found.
   5112      *
   5113      * @see #putParcelableArrayListExtra(String, ArrayList)
   5114      */
   5115     public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
   5116         return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
   5117     }
   5118 
   5119     /**
   5120      * Retrieve extended data from the intent.
   5121      *
   5122      * @param name The name of the desired item.
   5123      *
   5124      * @return the value of an item that previously added with putExtra()
   5125      * or null if no Serializable value was found.
   5126      *
   5127      * @see #putExtra(String, Serializable)
   5128      */
   5129     public Serializable getSerializableExtra(String name) {
   5130         return mExtras == null ? null : mExtras.getSerializable(name);
   5131     }
   5132 
   5133     /**
   5134      * Retrieve extended data from the intent.
   5135      *
   5136      * @param name The name of the desired item.
   5137      *
   5138      * @return the value of an item that previously added with putExtra()
   5139      * or null if no ArrayList<Integer> value was found.
   5140      *
   5141      * @see #putIntegerArrayListExtra(String, ArrayList)
   5142      */
   5143     public ArrayList<Integer> getIntegerArrayListExtra(String name) {
   5144         return mExtras == null ? null : mExtras.getIntegerArrayList(name);
   5145     }
   5146 
   5147     /**
   5148      * Retrieve extended data from the intent.
   5149      *
   5150      * @param name The name of the desired item.
   5151      *
   5152      * @return the value of an item that previously added with putExtra()
   5153      * or null if no ArrayList<String> value was found.
   5154      *
   5155      * @see #putStringArrayListExtra(String, ArrayList)
   5156      */
   5157     public ArrayList<String> getStringArrayListExtra(String name) {
   5158         return mExtras == null ? null : mExtras.getStringArrayList(name);
   5159     }
   5160 
   5161     /**
   5162      * Retrieve extended data from the intent.
   5163      *
   5164      * @param name The name of the desired item.
   5165      *
   5166      * @return the value of an item that previously added with putExtra()
   5167      * or null if no ArrayList<CharSequence> value was found.
   5168      *
   5169      * @see #putCharSequenceArrayListExtra(String, ArrayList)
   5170      */
   5171     public ArrayList<CharSequence> getCharSequenceArrayListExtra(String name) {
   5172         return mExtras == null ? null : mExtras.getCharSequenceArrayList(name);
   5173     }
   5174 
   5175     /**
   5176      * Retrieve extended data from the intent.
   5177      *
   5178      * @param name The name of the desired item.
   5179      *
   5180      * @return the value of an item that previously added with putExtra()
   5181      * or null if no boolean array value was found.
   5182      *
   5183      * @see #putExtra(String, boolean[])
   5184      */
   5185     public boolean[] getBooleanArrayExtra(String name) {
   5186         return mExtras == null ? null : mExtras.getBooleanArray(name);
   5187     }
   5188 
   5189     /**
   5190      * Retrieve extended data from the intent.
   5191      *
   5192      * @param name The name of the desired item.
   5193      *
   5194      * @return the value of an item that previously added with putExtra()
   5195      * or null if no byte array value was found.
   5196      *
   5197      * @see #putExtra(String, byte[])
   5198      */
   5199     public byte[] getByteArrayExtra(String name) {
   5200         return mExtras == null ? null : mExtras.getByteArray(name);
   5201     }
   5202 
   5203     /**
   5204      * Retrieve extended data from the intent.
   5205      *
   5206      * @param name The name of the desired item.
   5207      *
   5208      * @return the value of an item that previously added with putExtra()
   5209      * or null if no short array value was found.
   5210      *
   5211      * @see #putExtra(String, short[])
   5212      */
   5213     public short[] getShortArrayExtra(String name) {
   5214         return mExtras == null ? null : mExtras.getShortArray(name);
   5215     }
   5216 
   5217     /**
   5218      * Retrieve extended data from the intent.
   5219      *
   5220      * @param name The name of the desired item.
   5221      *
   5222      * @return the value of an item that previously added with putExtra()
   5223      * or null if no char array value was found.
   5224      *
   5225      * @see #putExtra(String, char[])
   5226      */
   5227     public char[] getCharArrayExtra(String name) {
   5228         return mExtras == null ? null : mExtras.getCharArray(name);
   5229     }
   5230 
   5231     /**
   5232      * Retrieve extended data from the intent.
   5233      *
   5234      * @param name The name of the desired item.
   5235      *
   5236      * @return the value of an item that previously added with putExtra()
   5237      * or null if no int array value was found.
   5238      *
   5239      * @see #putExtra(String, int[])
   5240      */
   5241     public int[] getIntArrayExtra(String name) {
   5242         return mExtras == null ? null : mExtras.getIntArray(name);
   5243     }
   5244 
   5245     /**
   5246      * Retrieve extended data from the intent.
   5247      *
   5248      * @param name The name of the desired item.
   5249      *
   5250      * @return the value of an item that previously added with putExtra()
   5251      * or null if no long array value was found.
   5252      *
   5253      * @see #putExtra(String, long[])
   5254      */
   5255     public long[] getLongArrayExtra(String name) {
   5256         return mExtras == null ? null : mExtras.getLongArray(name);
   5257     }
   5258 
   5259     /**
   5260      * Retrieve extended data from the intent.
   5261      *
   5262      * @param name The name of the desired item.
   5263      *
   5264      * @return the value of an item that previously added with putExtra()
   5265      * or null if no float array value was found.
   5266      *
   5267      * @see #putExtra(String, float[])
   5268      */
   5269     public float[] getFloatArrayExtra(String name) {
   5270         return mExtras == null ? null : mExtras.getFloatArray(name);
   5271     }
   5272 
   5273     /**
   5274      * Retrieve extended data from the intent.
   5275      *
   5276      * @param name The name of the desired item.
   5277      *
   5278      * @return the value of an item that previously added with putExtra()
   5279      * or null if no double array value was found.
   5280      *
   5281      * @see #putExtra(String, double[])
   5282      */
   5283     public double[] getDoubleArrayExtra(String name) {
   5284         return mExtras == null ? null : mExtras.getDoubleArray(name);
   5285     }
   5286 
   5287     /**
   5288      * Retrieve extended data from the intent.
   5289      *
   5290      * @param name The name of the desired item.
   5291      *
   5292      * @return the value of an item that previously added with putExtra()
   5293      * or null if no String array value was found.
   5294      *
   5295      * @see #putExtra(String, String[])
   5296      */
   5297     public String[] getStringArrayExtra(String name) {
   5298         return mExtras == null ? null : mExtras.getStringArray(name);
   5299     }
   5300 
   5301     /**
   5302      * Retrieve extended data from the intent.
   5303      *
   5304      * @param name The name of the desired item.
   5305      *
   5306      * @return the value of an item that previously added with putExtra()
   5307      * or null if no CharSequence array value was found.
   5308      *
   5309      * @see #putExtra(String, CharSequence[])
   5310      */
   5311     public CharSequence[] getCharSequenceArrayExtra(String name) {
   5312         return mExtras == null ? null : mExtras.getCharSequenceArray(name);
   5313     }
   5314 
   5315     /**
   5316      * Retrieve extended data from the intent.
   5317      *
   5318      * @param name The name of the desired item.
   5319      *
   5320      * @return the value of an item that previously added with putExtra()
   5321      * or null if no Bundle value was found.
   5322      *
   5323      * @see #putExtra(String, Bundle)
   5324      */
   5325     public Bundle getBundleExtra(String name) {
   5326         return mExtras == null ? null : mExtras.getBundle(name);
   5327     }
   5328 
   5329     /**
   5330      * Retrieve extended data from the intent.
   5331      *
   5332      * @param name The name of the desired item.
   5333      *
   5334      * @return the value of an item that previously added with putExtra()
   5335      * or null if no IBinder value was found.
   5336      *
   5337      * @see #putExtra(String, IBinder)
   5338      *
   5339      * @deprecated
   5340      * @hide
   5341      */
   5342     @Deprecated
   5343     public IBinder getIBinderExtra(String name) {
   5344         return mExtras == null ? null : mExtras.getIBinder(name);
   5345     }
   5346 
   5347     /**
   5348      * Retrieve extended data from the intent.
   5349      *
   5350      * @param name The name of the desired item.
   5351      * @param defaultValue The default value to return in case no item is
   5352      * associated with the key 'name'
   5353      *
   5354      * @return the value of an item that previously added with putExtra()
   5355      * or defaultValue if none was found.
   5356      *
   5357      * @see #putExtra
   5358      *
   5359      * @deprecated
   5360      * @hide
   5361      */
   5362     @Deprecated
   5363     public Object getExtra(String name, Object defaultValue) {
   5364         Object result = defaultValue;
   5365         if (mExtras != null) {
   5366             Object result2 = mExtras.get(name);
   5367             if (result2 != null) {
   5368                 result = result2;
   5369             }
   5370         }
   5371 
   5372         return result;
   5373     }
   5374 
   5375     /**
   5376      * Retrieves a map of extended data from the intent.
   5377      *
   5378      * @return the map of all extras previously added with putExtra(),
   5379      * or null if none have been added.
   5380      */
   5381     public Bundle getExtras() {
   5382         return (mExtras != null)
   5383                 ? new Bundle(mExtras)
   5384                 : null;
   5385     }
   5386 
   5387     /**
   5388      * Retrieve any special flags associated with this intent.  You will
   5389      * normally just set them with {@link #setFlags} and let the system
   5390      * take the appropriate action with them.
   5391      *
   5392      * @return int The currently set flags.
   5393      *
   5394      * @see #setFlags
   5395      */
   5396     public int getFlags() {
   5397         return mFlags;
   5398     }
   5399 
   5400     /** @hide */
   5401     public boolean isExcludingStopped() {
   5402         return (mFlags&(FLAG_EXCLUDE_STOPPED_PACKAGES|FLAG_INCLUDE_STOPPED_PACKAGES))
   5403                 == FLAG_EXCLUDE_STOPPED_PACKAGES;
   5404     }
   5405 
   5406     /**
   5407      * Retrieve the application package name this Intent is limited to.  When
   5408      * resolving an Intent, if non-null this limits the resolution to only
   5409      * components in the given application package.
   5410      *
   5411      * @return The name of the application package for the Intent.
   5412      *
   5413      * @see #resolveActivity
   5414      * @see #setPackage
   5415      */
   5416     public String getPackage() {
   5417         return mPackage;
   5418     }
   5419 
   5420     /**
   5421      * Retrieve the concrete component associated with the intent.  When receiving
   5422      * an intent, this is the component that was found to best handle it (that is,
   5423      * yourself) and will always be non-null; in all other cases it will be
   5424      * null unless explicitly set.
   5425      *
   5426      * @return The name of the application component to handle the intent.
   5427      *
   5428      * @see #resolveActivity
   5429      * @see #setComponent
   5430      */
   5431     public ComponentName getComponent() {
   5432         return mComponent;
   5433     }
   5434 
   5435     /**
   5436      * Get the bounds of the sender of this intent, in screen coordinates.  This can be
   5437      * used as a hint to the receiver for animations and the like.  Null means that there
   5438      * is no source bounds.
   5439      */
   5440     public Rect getSourceBounds() {
   5441         return mSourceBounds;
   5442     }
   5443 
   5444     /**
   5445      * Return the Activity component that should be used to handle this intent.
   5446      * The appropriate component is determined based on the information in the
   5447      * intent, evaluated as follows:
   5448      *
   5449      * <p>If {@link #getComponent} returns an explicit class, that is returned
   5450      * without any further consideration.
   5451      *
   5452      * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
   5453      * category to be considered.
   5454      *
   5455      * <p>If {@link #getAction} is non-NULL, the activity must handle this
   5456      * action.
   5457      *
   5458      * <p>If {@link #resolveType} returns non-NULL, the activity must handle
   5459      * this type.
   5460      *
   5461      * <p>If {@link #addCategory} has added any categories, the activity must
   5462      * handle ALL of the categories specified.
   5463      *
   5464      * <p>If {@link #getPackage} is non-NULL, only activity components in
   5465      * that application package will be considered.
   5466      *
   5467      * <p>If there are no activities that satisfy all of these conditions, a
   5468      * null string is returned.
   5469      *
   5470      * <p>If multiple activities are found to satisfy the intent, the one with
   5471      * the highest priority will be used.  If there are multiple activities
   5472      * with the same priority, the system will either pick the best activity
   5473      * based on user preference, or resolve to a system class that will allow
   5474      * the user to pick an activity and forward from there.
   5475      *
   5476      * <p>This method is implemented simply by calling
   5477      * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
   5478      * true.</p>
   5479      * <p> This API is called for you as part of starting an activity from an
   5480      * intent.  You do not normally need to call it yourself.</p>
   5481      *
   5482      * @param pm The package manager with which to resolve the Intent.
   5483      *
   5484      * @return Name of the component implementing an activity that can
   5485      *         display the intent.
   5486      *
   5487      * @see #setComponent
   5488      * @see #getComponent
   5489      * @see #resolveActivityInfo
   5490      */
   5491     public ComponentName resolveActivity(PackageManager pm) {
   5492         if (mComponent != null) {
   5493             return mComponent;
   5494         }
   5495 
   5496         ResolveInfo info = pm.resolveActivity(
   5497             this, PackageManager.MATCH_DEFAULT_ONLY);
   5498         if (info != null) {
   5499             return new ComponentName(
   5500                     info.activityInfo.applicationInfo.packageName,
   5501                     info.activityInfo.name);
   5502         }
   5503 
   5504         return null;
   5505     }
   5506 
   5507     /**
   5508      * Resolve the Intent into an {@link ActivityInfo}
   5509      * describing the activity that should execute the intent.  Resolution
   5510      * follows the same rules as described for {@link #resolveActivity}, but
   5511      * you get back the completely information about the resolved activity
   5512      * instead of just its class name.
   5513      *
   5514      * @param pm The package manager with which to resolve the Intent.
   5515      * @param flags Addition information to retrieve as per
   5516      * {@link PackageManager#getActivityInfo(ComponentName, int)
   5517      * PackageManager.getActivityInfo()}.
   5518      *
   5519      * @return PackageManager.ActivityInfo
   5520      *
   5521      * @see #resolveActivity
   5522      */
   5523     public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
   5524         ActivityInfo ai = null;
   5525         if (mComponent != null) {
   5526             try {
   5527                 ai = pm.getActivityInfo(mComponent, flags);
   5528             } catch (PackageManager.NameNotFoundException e) {
   5529                 // ignore
   5530             }
   5531         } else {
   5532             ResolveInfo info = pm.resolveActivity(
   5533                 this, PackageManager.MATCH_DEFAULT_ONLY | flags);
   5534             if (info != null) {
   5535                 ai = info.activityInfo;
   5536             }
   5537         }
   5538 
   5539         return ai;
   5540     }
   5541 
   5542     /**
   5543      * Special function for use by the system to resolve service
   5544      * intents to system apps.  Throws an exception if there are
   5545      * multiple potential matches to the Intent.  Returns null if
   5546      * there are no matches.
   5547      * @hide
   5548      */
   5549     public ComponentName resolveSystemService(PackageManager pm, int flags) {
   5550         if (mComponent != null) {
   5551             return mComponent;
   5552         }
   5553 
   5554         List<ResolveInfo> results = pm.queryIntentServices(this, flags);
   5555         if (results == null) {
   5556             return null;
   5557         }
   5558         ComponentName comp = null;
   5559         for (int i=0; i<results.size(); i++) {
   5560             ResolveInfo ri = results.get(i);
   5561             if ((ri.serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) == 0) {
   5562                 continue;
   5563             }
   5564             ComponentName foundComp = new ComponentName(ri.serviceInfo.applicationInfo.packageName,
   5565                     ri.serviceInfo.name);
   5566             if (comp != null) {
   5567                 throw new IllegalStateException("Multiple system services handle " + this
   5568                         + ": " + comp + ", " + foundComp);
   5569             }
   5570             comp = foundComp;
   5571         }
   5572         return comp;
   5573     }
   5574 
   5575     /**
   5576      * Set the general action to be performed.
   5577      *
   5578      * @param action An action name, such as ACTION_VIEW.  Application-specific
   5579      *               actions should be prefixed with the vendor's package name.
   5580      *
   5581      * @return Returns the same Intent object, for chaining multiple calls
   5582      * into a single statement.
   5583      *
   5584      * @see #getAction
   5585      */
   5586     public Intent setAction(String action) {
   5587         mAction = action != null ? action.intern() : null;
   5588         return this;
   5589     }
   5590 
   5591     /**
   5592      * Set the data this intent is operating on.  This method automatically
   5593      * clears any type that was previously set by {@link #setType} or
   5594      * {@link #setTypeAndNormalize}.
   5595      *
   5596      * <p><em>Note: scheme matching in the Android framework is
   5597      * case-sensitive, unlike the formal RFC. As a result,
   5598      * you should always write your Uri with a lower case scheme,
   5599      * or use {@link Uri#normalizeScheme} or
   5600      * {@link #setDataAndNormalize}
   5601      * to ensure that the scheme is converted to lower case.</em>
   5602      *
   5603      * @param data The Uri of the data this intent is now targeting.
   5604      *
   5605      * @return Returns the same Intent object, for chaining multiple calls
   5606      * into a single statement.
   5607      *
   5608      * @see #getData
   5609      * @see #setDataAndNormalize
   5610      * @see android.net.Uri#normalizeScheme()
   5611      */
   5612     public Intent setData(Uri data) {
   5613         mData = data;
   5614         mType = null;
   5615         return this;
   5616     }
   5617 
   5618     /**
   5619      * Normalize and set the data this intent is operating on.
   5620      *
   5621      * <p>This method automatically clears any type that was
   5622      * previously set (for example, by {@link #setType}).
   5623      *
   5624      * <p>The data Uri is normalized using
   5625      * {@link android.net.Uri#normalizeScheme} before it is set,
   5626      * so really this is just a convenience method for
   5627      * <pre>
   5628      * setData(data.normalize())
   5629      * </pre>
   5630      *
   5631      * @param data The Uri of the data this intent is now targeting.
   5632      *
   5633      * @return Returns the same Intent object, for chaining multiple calls
   5634      * into a single statement.
   5635      *
   5636      * @see #getData
   5637      * @see #setType
   5638      * @see android.net.Uri#normalizeScheme
   5639      */
   5640     public Intent setDataAndNormalize(Uri data) {
   5641         return setData(data.normalizeScheme());
   5642     }
   5643 
   5644     /**
   5645      * Set an explicit MIME data type.
   5646      *
   5647      * <p>This is used to create intents that only specify a type and not data,
   5648      * for example to indicate the type of data to return.
   5649      *
   5650      * <p>This method automatically clears any data that was
   5651      * previously set (for example by {@link #setData}).
   5652      *
   5653      * <p><em>Note: MIME type matching in the Android framework is
   5654      * case-sensitive, unlike formal RFC MIME types.  As a result,
   5655      * you should always write your MIME types with lower case letters,
   5656      * or use {@link #normalizeMimeType} or {@link #setTypeAndNormalize}
   5657      * to ensure that it is converted to lower case.</em>
   5658      *
   5659      * @param type The MIME type of the data being handled by this intent.
   5660      *
   5661      * @return Returns the same Intent object, for chaining multiple calls
   5662      * into a single statement.
   5663      *
   5664      * @see #getType
   5665      * @see #setTypeAndNormalize
   5666      * @see #setDataAndType
   5667      * @see #normalizeMimeType
   5668      */
   5669     public Intent setType(String type) {
   5670         mData = null;
   5671         mType = type;
   5672         return this;
   5673     }
   5674 
   5675     /**
   5676      * Normalize and set an explicit MIME data type.
   5677      *
   5678      * <p>This is used to create intents that only specify a type and not data,
   5679      * for example to indicate the type of data to return.
   5680      *
   5681      * <p>This method automatically clears any data that was
   5682      * previously set (for example by {@link #setData}).
   5683      *
   5684      * <p>The MIME type is normalized using
   5685      * {@link #normalizeMimeType} before it is set,
   5686      * so really this is just a convenience method for
   5687      * <pre>
   5688      * setType(Intent.normalizeMimeType(type))
   5689      * </pre>
   5690      *
   5691      * @param type The MIME type of the data being handled by this intent.
   5692      *
   5693      * @return Returns the same Intent object, for chaining multiple calls
   5694      * into a single statement.
   5695      *
   5696      * @see #getType
   5697      * @see #setData
   5698      * @see #normalizeMimeType
   5699      */
   5700     public Intent setTypeAndNormalize(String type) {
   5701         return setType(normalizeMimeType(type));
   5702     }
   5703 
   5704     /**
   5705      * (Usually optional) Set the data for the intent along with an explicit
   5706      * MIME data type.  This method should very rarely be used -- it allows you
   5707      * to override the MIME type that would ordinarily be inferred from the
   5708      * data with your own type given here.
   5709      *
   5710      * <p><em>Note: MIME type and Uri scheme matching in the
   5711      * Android framework is case-sensitive, unlike the formal RFC definitions.
   5712      * As a result, you should always write these elements with lower case letters,
   5713      * or use {@link #normalizeMimeType} or {@link android.net.Uri#normalizeScheme} or
   5714      * {@link #setDataAndTypeAndNormalize}
   5715      * to ensure that they are converted to lower case.</em>
   5716      *
   5717      * @param data The Uri of the data this intent is now targeting.
   5718      * @param type The MIME type of the data being handled by this intent.
   5719      *
   5720      * @return Returns the same Intent object, for chaining multiple calls
   5721      * into a single statement.
   5722      *
   5723      * @see #setType
   5724      * @see #setData
   5725      * @see #normalizeMimeType
   5726      * @see android.net.Uri#normalizeScheme
   5727      * @see #setDataAndTypeAndNormalize
   5728      */
   5729     public Intent setDataAndType(Uri data, String type) {
   5730         mData = data;
   5731         mType = type;
   5732         return this;
   5733     }
   5734 
   5735     /**
   5736      * (Usually optional) Normalize and set both the data Uri and an explicit
   5737      * MIME data type.  This method should very rarely be used -- it allows you
   5738      * to override the MIME type that would ordinarily be inferred from the
   5739      * data with your own type given here.
   5740      *
   5741      * <p>The data Uri and the MIME type are normalize using
   5742      * {@link android.net.Uri#normalizeScheme} and {@link #normalizeMimeType}
   5743      * before they are set, so really this is just a convenience method for
   5744      * <pre>
   5745      * setDataAndType(data.normalize(), Intent.normalizeMimeType(type))
   5746      * </pre>
   5747      *
   5748      * @param data The Uri of the data this intent is now targeting.
   5749      * @param type The MIME type of the data being handled by this intent.
   5750      *
   5751      * @return Returns the same Intent object, for chaining multiple calls
   5752      * into a single statement.
   5753      *
   5754      * @see #setType
   5755      * @see #setData
   5756      * @see #setDataAndType
   5757      * @see #normalizeMimeType
   5758      * @see android.net.Uri#normalizeScheme
   5759      */
   5760     public Intent setDataAndTypeAndNormalize(Uri data, String type) {
   5761         return setDataAndType(data.normalizeScheme(), normalizeMimeType(type));
   5762     }
   5763 
   5764     /**
   5765      * Add a new category to the intent.  Categories provide additional detail
   5766      * about the action the intent performs.  When resolving an intent, only
   5767      * activities that provide <em>all</em> of the requested categories will be
   5768      * used.
   5769      *
   5770      * @param category The desired category.  This can be either one of the
   5771      *               predefined Intent categories, or a custom category in your own
   5772      *               namespace.
   5773      *
   5774      * @return Returns the same Intent object, for chaining multiple calls
   5775      * into a single statement.
   5776      *
   5777      * @see #hasCategory
   5778      * @see #removeCategory
   5779      */
   5780     public Intent addCategory(String category) {
   5781         if (mCategories == null) {
   5782             mCategories = new ArraySet<String>();
   5783         }
   5784         mCategories.add(category.intern());
   5785         return this;
   5786     }
   5787 
   5788     /**
   5789      * Remove a category from an intent.
   5790      *
   5791      * @param category The category to remove.
   5792      *
   5793      * @see #addCategory
   5794      */
   5795     public void removeCategory(String category) {
   5796         if (mCategories != null) {
   5797             mCategories.remove(category);
   5798             if (mCategories.size() == 0) {
   5799                 mCategories = null;
   5800             }
   5801         }
   5802     }
   5803 
   5804     /**
   5805      * Set a selector for this Intent.  This is a modification to the kinds of
   5806      * things the Intent will match.  If the selector is set, it will be used
   5807      * when trying to find entities that can handle the Intent, instead of the
   5808      * main contents of the Intent.  This allows you build an Intent containing
   5809      * a generic protocol while targeting it more specifically.
   5810      *
   5811      * <p>An example of where this may be used is with things like
   5812      * {@link #CATEGORY_APP_BROWSER}.  This category allows you to build an
   5813      * Intent that will launch the Browser application.  However, the correct
   5814      * main entry point of an application is actually {@link #ACTION_MAIN}
   5815      * {@link #CATEGORY_LAUNCHER} with {@link #setComponent(ComponentName)}
   5816      * used to specify the actual Activity to launch.  If you launch the browser
   5817      * with something different, undesired behavior may happen if the user has
   5818      * previously or later launches it the normal way, since they do not match.
   5819      * Instead, you can build an Intent with the MAIN action (but no ComponentName
   5820      * yet specified) and set a selector with {@link #ACTION_MAIN} and
   5821      * {@link #CATEGORY_APP_BROWSER} to point it specifically to the browser activity.
   5822      *
   5823      * <p>Setting a selector does not impact the behavior of
   5824      * {@link #filterEquals(Intent)} and {@link #filterHashCode()}.  This is part of the
   5825      * desired behavior of a selector -- it does not impact the base meaning
   5826      * of the Intent, just what kinds of things will be matched against it
   5827      * when determining who can handle it.</p>
   5828      *
   5829      * <p>You can not use both a selector and {@link #setPackage(String)} on
   5830      * the same base Intent.</p>
   5831      *
   5832      * @param selector The desired selector Intent; set to null to not use
   5833      * a special selector.
   5834      */
   5835     public void setSelector(Intent selector) {
   5836         if (selector == this) {
   5837             throw new IllegalArgumentException(
   5838                     "Intent being set as a selector of itself");
   5839         }
   5840         if (selector != null && mPackage != null) {
   5841             throw new IllegalArgumentException(
   5842                     "Can't set selector when package name is already set");
   5843         }
   5844         mSelector = selector;
   5845     }
   5846 
   5847     /**
   5848      * Set a {@link ClipData} associated with this Intent.  This replaces any
   5849      * previously set ClipData.
   5850      *
   5851      * <p>The ClipData in an intent is not used for Intent matching or other
   5852      * such operations.  Semantically it is like extras, used to transmit
   5853      * additional data with the Intent.  The main feature of using this over
   5854      * the extras for data is that {@link #FLAG_GRANT_READ_URI_PERMISSION}
   5855      * and {@link #FLAG_GRANT_WRITE_URI_PERMISSION} will operate on any URI
   5856      * items included in the clip data.  This is useful, in particular, if
   5857      * you want to transmit an Intent containing multiple <code>content:</code>
   5858      * URIs for which the recipient may not have global permission to access the
   5859      * content provider.
   5860      *
   5861      * <p>If the ClipData contains items that are themselves Intents, any
   5862      * grant flags in those Intents will be ignored.  Only the top-level flags
   5863      * of the main Intent are respected, and will be applied to all Uri or
   5864      * Intent items in the clip (or sub-items of the clip).
   5865      *
   5866      * <p>The MIME type, label, and icon in the ClipData object are not
   5867      * directly used by Intent.  Applications should generally rely on the
   5868      * MIME type of the Intent itself, not what it may find in the ClipData.
   5869      * A common practice is to construct a ClipData for use with an Intent
   5870      * with a MIME type of "*&#47;*".
   5871      *
   5872      * @param clip The new clip to set.  May be null to clear the current clip.
   5873      */
   5874     public void setClipData(ClipData clip) {
   5875         mClipData = clip;
   5876     }
   5877 
   5878     /**
   5879      * This is NOT a secure mechanism to identify the user who sent the intent.
   5880      * When the intent is sent to a different user, it is used to fix uris by adding the userId
   5881      * who sent the intent.
   5882      * @hide
   5883      */
   5884     public void setContentUserHint(int contentUserHint) {
   5885         mContentUserHint = contentUserHint;
   5886     }
   5887 
   5888     /**
   5889      * Add extended data to the intent.  The name must include a package
   5890      * prefix, for example the app com.android.contacts would use names
   5891      * like "com.android.contacts.ShowAll".
   5892      *
   5893      * @param name The name of the extra data, with package prefix.
   5894      * @param value The boolean data value.
   5895      *
   5896      * @return Returns the same Intent object, for chaining multiple calls
   5897      * into a single statement.
   5898      *
   5899      * @see #putExtras
   5900      * @see #removeExtra
   5901      * @see #getBooleanExtra(String, boolean)
   5902      */
   5903     public Intent putExtra(String name, boolean value) {
   5904         if (mExtras == null) {
   5905             mExtras = new Bundle();
   5906         }
   5907         mExtras.putBoolean(name, value);
   5908         return this;
   5909     }
   5910 
   5911     /**
   5912      * Add extended data to the intent.  The name must include a package
   5913      * prefix, for example the app com.android.contacts would use names
   5914      * like "com.android.contacts.ShowAll".
   5915      *
   5916      * @param name The name of the extra data, with package prefix.
   5917      * @param value The byte data value.
   5918      *
   5919      * @return Returns the same Intent object, for chaining multiple calls
   5920      * into a single statement.
   5921      *
   5922      * @see #putExtras
   5923      * @see #removeExtra
   5924      * @see #getByteExtra(String, byte)
   5925      */
   5926     public Intent putExtra(String name, byte value) {
   5927         if (mExtras == null) {
   5928             mExtras = new Bundle();
   5929         }
   5930         mExtras.putByte(name, value);
   5931         return this;
   5932     }
   5933 
   5934     /**
   5935      * Add extended data to the intent.  The name must include a package
   5936      * prefix, for example the app com.android.contacts would use names
   5937      * like "com.android.contacts.ShowAll".
   5938      *
   5939      * @param name The name of the extra data, with package prefix.
   5940      * @param value The char data value.
   5941      *
   5942      * @return Returns the same Intent object, for chaining multiple calls
   5943      * into a single statement.
   5944      *
   5945      * @see #putExtras
   5946      * @see #removeExtra
   5947      * @see #getCharExtra(String, char)
   5948      */
   5949     public Intent putExtra(String name, char value) {
   5950         if (mExtras == null) {
   5951             mExtras = new Bundle();
   5952         }
   5953         mExtras.putChar(name, value);
   5954         return this;
   5955     }
   5956 
   5957     /**
   5958      * Add extended data to the intent.  The name must include a package
   5959      * prefix, for example the app com.android.contacts would use names
   5960      * like "com.android.contacts.ShowAll".
   5961      *
   5962      * @param name The name of the extra data, with package prefix.
   5963      * @param value The short data value.
   5964      *
   5965      * @return Returns the same Intent object, for chaining multiple calls
   5966      * into a single statement.
   5967      *
   5968      * @see #putExtras
   5969      * @see #removeExtra
   5970      * @see #getShortExtra(String, short)
   5971      */
   5972     public Intent putExtra(String name, short value) {
   5973         if (mExtras == null) {
   5974             mExtras = new Bundle();
   5975         }
   5976         mExtras.putShort(name, value);
   5977         return this;
   5978     }
   5979 
   5980     /**
   5981      * Add extended data to the intent.  The name must include a package
   5982      * prefix, for example the app com.android.contacts would use names
   5983      * like "com.android.contacts.ShowAll".
   5984      *
   5985      * @param name The name of the extra data, with package prefix.
   5986      * @param value The integer data value.
   5987      *
   5988      * @return Returns the same Intent object, for chaining multiple calls
   5989      * into a single statement.
   5990      *
   5991      * @see #putExtras
   5992      * @see #removeExtra
   5993      * @see #getIntExtra(String, int)
   5994      */
   5995     public Intent putExtra(String name, int value) {
   5996         if (mExtras == null) {
   5997             mExtras = new Bundle();
   5998         }
   5999         mExtras.putInt(name, value);
   6000         return this;
   6001     }
   6002 
   6003     /**
   6004      * Add extended data to the intent.  The name must include a package
   6005      * prefix, for example the app com.android.contacts would use names
   6006      * like "com.android.contacts.ShowAll".
   6007      *
   6008      * @param name The name of the extra data, with package prefix.
   6009      * @param value The long data value.
   6010      *
   6011      * @return Returns the same Intent object, for chaining multiple calls
   6012      * into a single statement.
   6013      *
   6014      * @see #putExtras
   6015      * @see #removeExtra
   6016      * @see #getLongExtra(String, long)
   6017      */
   6018     public Intent putExtra(String name, long value) {
   6019         if (mExtras == null) {
   6020             mExtras = new Bundle();
   6021         }
   6022         mExtras.putLong(name, value);
   6023         return this;
   6024     }
   6025 
   6026     /**
   6027      * Add extended data to the intent.  The name must include a package
   6028      * prefix, for example the app com.android.contacts would use names
   6029      * like "com.android.contacts.ShowAll".
   6030      *
   6031      * @param name The name of the extra data, with package prefix.
   6032      * @param value The float data value.
   6033      *
   6034      * @return Returns the same Intent object, for chaining multiple calls
   6035      * into a single statement.
   6036      *
   6037      * @see #putExtras
   6038      * @see #removeExtra
   6039      * @see #getFloatExtra(String, float)
   6040      */
   6041     public Intent putExtra(String name, float value) {
   6042         if (mExtras == null) {
   6043             mExtras = new Bundle();
   6044         }
   6045         mExtras.putFloat(name, value);
   6046         return this;
   6047     }
   6048 
   6049     /**
   6050      * Add extended data to the intent.  The name must include a package
   6051      * prefix, for example the app com.android.contacts would use names
   6052      * like "com.android.contacts.ShowAll".
   6053      *
   6054      * @param name The name of the extra data, with package prefix.
   6055      * @param value The double data value.
   6056      *
   6057      * @return Returns the same Intent object, for chaining multiple calls
   6058      * into a single statement.
   6059      *
   6060      * @see #putExtras
   6061      * @see #removeExtra
   6062      * @see #getDoubleExtra(String, double)
   6063      */
   6064     public Intent putExtra(String name, double value) {
   6065         if (mExtras == null) {
   6066             mExtras = new Bundle();
   6067         }
   6068         mExtras.putDouble(name, value);
   6069         return this;
   6070     }
   6071 
   6072     /**
   6073      * Add extended data to the intent.  The name must include a package
   6074      * prefix, for example the app com.android.contacts would use names
   6075      * like "com.android.contacts.ShowAll".
   6076      *
   6077      * @param name The name of the extra data, with package prefix.
   6078      * @param value The String data value.
   6079      *
   6080      * @return Returns the same Intent object, for chaining multiple calls
   6081      * into a single statement.
   6082      *
   6083      * @see #putExtras
   6084      * @see #removeExtra
   6085      * @see #getStringExtra(String)
   6086      */
   6087     public Intent putExtra(String name, String value) {
   6088         if (mExtras == null) {
   6089             mExtras = new Bundle();
   6090         }
   6091         mExtras.putString(name, value);
   6092         return this;
   6093     }
   6094 
   6095     /**
   6096      * Add extended data to the intent.  The name must include a package
   6097      * prefix, for example the app com.android.contacts would use names
   6098      * like "com.android.contacts.ShowAll".
   6099      *
   6100      * @param name The name of the extra data, with package prefix.
   6101      * @param value The CharSequence data value.
   6102      *
   6103      * @return Returns the same Intent object, for chaining multiple calls
   6104      * into a single statement.
   6105      *
   6106      * @see #putExtras
   6107      * @see #removeExtra
   6108      * @see #getCharSequenceExtra(String)
   6109      */
   6110     public Intent putExtra(String name, CharSequence value) {
   6111         if (mExtras == null) {
   6112             mExtras = new Bundle();
   6113         }
   6114         mExtras.putCharSequence(name, value);
   6115         return this;
   6116     }
   6117 
   6118     /**
   6119      * Add extended data to the intent.  The name must include a package
   6120      * prefix, for example the app com.android.contacts would use names
   6121      * like "com.android.contacts.ShowAll".
   6122      *
   6123      * @param name The name of the extra data, with package prefix.
   6124      * @param value The Parcelable data value.
   6125      *
   6126      * @return Returns the same Intent object, for chaining multiple calls
   6127      * into a single statement.
   6128      *
   6129      * @see #putExtras
   6130      * @see #removeExtra
   6131      * @see #getParcelableExtra(String)
   6132      */
   6133     public Intent putExtra(String name, Parcelable value) {
   6134         if (mExtras == null) {
   6135             mExtras = new Bundle();
   6136         }
   6137         mExtras.putParcelable(name, value);
   6138         return this;
   6139     }
   6140 
   6141     /**
   6142      * Add extended data to the intent.  The name must include a package
   6143      * prefix, for example the app com.android.contacts would use names
   6144      * like "com.android.contacts.ShowAll".
   6145      *
   6146      * @param name The name of the extra data, with package prefix.
   6147      * @param value The Parcelable[] data value.
   6148      *
   6149      * @return Returns the same Intent object, for chaining multiple calls
   6150      * into a single statement.
   6151      *
   6152      * @see #putExtras
   6153      * @see #removeExtra
   6154      * @see #getParcelableArrayExtra(String)
   6155      */
   6156     public Intent putExtra(String name, Parcelable[] value) {
   6157         if (mExtras == null) {
   6158             mExtras = new Bundle();
   6159         }
   6160         mExtras.putParcelableArray(name, value);
   6161         return this;
   6162     }
   6163 
   6164     /**
   6165      * Add extended data to the intent.  The name must include a package
   6166      * prefix, for example the app com.android.contacts would use names
   6167      * like "com.android.contacts.ShowAll".
   6168      *
   6169      * @param name The name of the extra data, with package prefix.
   6170      * @param value The ArrayList<Parcelable> data value.
   6171      *
   6172      * @return Returns the same Intent object, for chaining multiple calls
   6173      * into a single statement.
   6174      *
   6175      * @see #putExtras
   6176      * @see #removeExtra
   6177      * @see #getParcelableArrayListExtra(String)
   6178      */
   6179     public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
   6180         if (mExtras == null) {
   6181             mExtras = new Bundle();
   6182         }
   6183         mExtras.putParcelableArrayList(name, value);
   6184         return this;
   6185     }
   6186 
   6187     /**
   6188      * Add extended data to the intent.  The name must include a package
   6189      * prefix, for example the app com.android.contacts would use names
   6190      * like "com.android.contacts.ShowAll".
   6191      *
   6192      * @param name The name of the extra data, with package prefix.
   6193      * @param value The ArrayList<Integer> data value.
   6194      *
   6195      * @return Returns the same Intent object, for chaining multiple calls
   6196      * into a single statement.
   6197      *
   6198      * @see #putExtras
   6199      * @see #removeExtra
   6200      * @see #getIntegerArrayListExtra(String)
   6201      */
   6202     public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
   6203         if (mExtras == null) {
   6204             mExtras = new Bundle();
   6205         }
   6206         mExtras.putIntegerArrayList(name, value);
   6207         return this;
   6208     }
   6209 
   6210     /**
   6211      * Add extended data to the intent.  The name must include a package
   6212      * prefix, for example the app com.android.contacts would use names
   6213      * like "com.android.contacts.ShowAll".
   6214      *
   6215      * @param name The name of the extra data, with package prefix.
   6216      * @param value The ArrayList<String> data value.
   6217      *
   6218      * @return Returns the same Intent object, for chaining multiple calls
   6219      * into a single statement.
   6220      *
   6221      * @see #putExtras
   6222      * @see #removeExtra
   6223      * @see #getStringArrayListExtra(String)
   6224      */
   6225     public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
   6226         if (mExtras == null) {
   6227             mExtras = new Bundle();
   6228         }
   6229         mExtras.putStringArrayList(name, value);
   6230         return this;
   6231     }
   6232 
   6233     /**
   6234      * Add extended data to the intent.  The name must include a package
   6235      * prefix, for example the app com.android.contacts would use names
   6236      * like "com.android.contacts.ShowAll".
   6237      *
   6238      * @param name The name of the extra data, with package prefix.
   6239      * @param value The ArrayList<CharSequence> data value.
   6240      *
   6241      * @return Returns the same Intent object, for chaining multiple calls
   6242      * into a single statement.
   6243      *
   6244      * @see #putExtras
   6245      * @see #removeExtra
   6246      * @see #getCharSequenceArrayListExtra(String)
   6247      */
   6248     public Intent putCharSequenceArrayListExtra(String name, ArrayList<CharSequence> value) {
   6249         if (mExtras == null) {
   6250             mExtras = new Bundle();
   6251         }
   6252         mExtras.putCharSequenceArrayList(name, value);
   6253         return this;
   6254     }
   6255 
   6256     /**
   6257      * Add extended data to the intent.  The name must include a package
   6258      * prefix, for example the app com.android.contacts would use names
   6259      * like "com.android.contacts.ShowAll".
   6260      *
   6261      * @param name The name of the extra data, with package prefix.
   6262      * @param value The Serializable data value.
   6263      *
   6264      * @return Returns the same Intent object, for chaining multiple calls
   6265      * into a single statement.
   6266      *
   6267      * @see #putExtras
   6268      * @see #removeExtra
   6269      * @see #getSerializableExtra(String)
   6270      */
   6271     public Intent putExtra(String name, Serializable value) {
   6272         if (mExtras == null) {
   6273             mExtras = new Bundle();
   6274         }
   6275         mExtras.putSerializable(name, value);
   6276         return this;
   6277     }
   6278 
   6279     /**
   6280      * Add extended data to the intent.  The name must include a package
   6281      * prefix, for example the app com.android.contacts would use names
   6282      * like "com.android.contacts.ShowAll".
   6283      *
   6284      * @param name The name of the extra data, with package prefix.
   6285      * @param value The boolean array data value.
   6286      *
   6287      * @return Returns the same Intent object, for chaining multiple calls
   6288      * into a single statement.
   6289      *
   6290      * @see #putExtras
   6291      * @see #removeExtra
   6292      * @see #getBooleanArrayExtra(String)
   6293      */
   6294     public Intent putExtra(String name, boolean[] value) {
   6295         if (mExtras == null) {
   6296             mExtras = new Bundle();
   6297         }
   6298         mExtras.putBooleanArray(name, value);
   6299         return this;
   6300     }
   6301 
   6302     /**
   6303      * Add extended data to the intent.  The name must include a package
   6304      * prefix, for example the app com.android.contacts would use names
   6305      * like "com.android.contacts.ShowAll".
   6306      *
   6307      * @param name The name of the extra data, with package prefix.
   6308      * @param value The byte array data value.
   6309      *
   6310      * @return Returns the same Intent object, for chaining multiple calls
   6311      * into a single statement.
   6312      *
   6313      * @see #putExtras
   6314      * @see #removeExtra
   6315      * @see #getByteArrayExtra(String)
   6316      */
   6317     public Intent putExtra(String name, byte[] value) {
   6318         if (mExtras == null) {
   6319             mExtras = new Bundle();
   6320         }
   6321         mExtras.putByteArray(name, value);
   6322         return this;
   6323     }
   6324 
   6325     /**
   6326      * Add extended data to the intent.  The name must include a package
   6327      * prefix, for example the app com.android.contacts would use names
   6328      * like "com.android.contacts.ShowAll".
   6329      *
   6330      * @param name The name of the extra data, with package prefix.
   6331      * @param value The short array data value.
   6332      *
   6333      * @return Returns the same Intent object, for chaining multiple calls
   6334      * into a single statement.
   6335      *
   6336      * @see #putExtras
   6337      * @see #removeExtra
   6338      * @see #getShortArrayExtra(String)
   6339      */
   6340     public Intent putExtra(String name, short[] value) {
   6341         if (mExtras == null) {
   6342             mExtras = new Bundle();
   6343         }
   6344         mExtras.putShortArray(name, value);
   6345         return this;
   6346     }
   6347 
   6348     /**
   6349      * Add extended data to the intent.  The name must include a package
   6350      * prefix, for example the app com.android.contacts would use names
   6351      * like "com.android.contacts.ShowAll".
   6352      *
   6353      * @param name The name of the extra data, with package prefix.
   6354      * @param value The char array data value.
   6355      *
   6356      * @return Returns the same Intent object, for chaining multiple calls
   6357      * into a single statement.
   6358      *
   6359      * @see #putExtras
   6360      * @see #removeExtra
   6361      * @see #getCharArrayExtra(String)
   6362      */
   6363     public Intent putExtra(String name, char[] value) {
   6364         if (mExtras == null) {
   6365             mExtras = new Bundle();
   6366         }
   6367         mExtras.putCharArray(name, value);
   6368         return this;
   6369     }
   6370 
   6371     /**
   6372      * Add extended data to the intent.  The name must include a package
   6373      * prefix, for example the app com.android.contacts would use names
   6374      * like "com.android.contacts.ShowAll".
   6375      *
   6376      * @param name The name of the extra data, with package prefix.
   6377      * @param value The int array data value.
   6378      *
   6379      * @return Returns the same Intent object, for chaining multiple calls
   6380      * into a single statement.
   6381      *
   6382      * @see #putExtras
   6383      * @see #removeExtra
   6384      * @see #getIntArrayExtra(String)
   6385      */
   6386     public Intent putExtra(String name, int[] value) {
   6387         if (mExtras == null) {
   6388             mExtras = new Bundle();
   6389         }
   6390         mExtras.putIntArray(name, value);
   6391         return this;
   6392     }
   6393 
   6394     /**
   6395      * Add extended data to the intent.  The name must include a package
   6396      * prefix, for example the app com.android.contacts would use names
   6397      * like "com.android.contacts.ShowAll".
   6398      *
   6399      * @param name The name of the extra data, with package prefix.
   6400      * @param value The byte array data value.
   6401      *
   6402      * @return Returns the same Intent object, for chaining multiple calls
   6403      * into a single statement.
   6404      *
   6405      * @see #putExtras
   6406      * @see #removeExtra
   6407      * @see #getLongArrayExtra(String)
   6408      */
   6409     public Intent putExtra(String name, long[] value) {
   6410         if (mExtras == null) {
   6411             mExtras = new Bundle();
   6412         }
   6413         mExtras.putLongArray(name, value);
   6414         return this;
   6415     }
   6416 
   6417     /**
   6418      * Add extended data to the intent.  The name must include a package
   6419      * prefix, for example the app com.android.contacts would use names
   6420      * like "com.android.contacts.ShowAll".
   6421      *
   6422      * @param name The name of the extra data, with package prefix.
   6423      * @param value The float array data value.
   6424      *
   6425      * @return Returns the same Intent object, for chaining multiple calls
   6426      * into a single statement.
   6427      *
   6428      * @see #putExtras
   6429      * @see #removeExtra
   6430      * @see #getFloatArrayExtra(String)
   6431      */
   6432     public Intent putExtra(String name, float[] value) {
   6433         if (mExtras == null) {
   6434             mExtras = new Bundle();
   6435         }
   6436         mExtras.putFloatArray(name, value);
   6437         return this;
   6438     }
   6439 
   6440     /**
   6441      * Add extended data to the intent.  The name must include a package
   6442      * prefix, for example the app com.android.contacts would use names
   6443      * like "com.android.contacts.ShowAll".
   6444      *
   6445      * @param name The name of the extra data, with package prefix.
   6446      * @param value The double array data value.
   6447      *
   6448      * @return Returns the same Intent object, for chaining multiple calls
   6449      * into a single statement.
   6450      *
   6451      * @see #putExtras
   6452      * @see #removeExtra
   6453      * @see #getDoubleArrayExtra(String)
   6454      */
   6455     public Intent putExtra(String name, double[] value) {
   6456         if (mExtras == null) {
   6457             mExtras = new Bundle();
   6458         }
   6459         mExtras.putDoubleArray(name, value);
   6460         return this;
   6461     }
   6462 
   6463     /**
   6464      * Add extended data to the intent.  The name must include a package
   6465      * prefix, for example the app com.android.contacts would use names
   6466      * like "com.android.contacts.ShowAll".
   6467      *
   6468      * @param name The name of the extra data, with package prefix.
   6469      * @param value The String array data value.
   6470      *
   6471      * @return Returns the same Intent object, for chaining multiple calls
   6472      * into a single statement.
   6473      *
   6474      * @see #putExtras
   6475      * @see #removeExtra
   6476      * @see #getStringArrayExtra(String)
   6477      */
   6478     public Intent putExtra(String name, String[] value) {
   6479         if (mExtras == null) {
   6480             mExtras = new Bundle();
   6481         }
   6482         mExtras.putStringArray(name, value);
   6483         return this;
   6484     }
   6485 
   6486     /**
   6487      * Add extended data to the intent.  The name must include a package
   6488      * prefix, for example the app com.android.contacts would use names
   6489      * like "com.android.contacts.ShowAll".
   6490      *
   6491      * @param name The name of the extra data, with package prefix.
   6492      * @param value The CharSequence array data value.
   6493      *
   6494      * @return Returns the same Intent object, for chaining multiple calls
   6495      * into a single statement.
   6496      *
   6497      * @see #putExtras
   6498      * @see #removeExtra
   6499      * @see #getCharSequenceArrayExtra(String)
   6500      */
   6501     public Intent putExtra(String name, CharSequence[] value) {
   6502         if (mExtras == null) {
   6503             mExtras = new Bundle();
   6504         }
   6505         mExtras.putCharSequenceArray(name, value);
   6506         return this;
   6507     }
   6508 
   6509     /**
   6510      * Add extended data to the intent.  The name must include a package
   6511      * prefix, for example the app com.android.contacts would use names
   6512      * like "com.android.contacts.ShowAll".
   6513      *
   6514      * @param name The name of the extra data, with package prefix.
   6515      * @param value The Bundle data value.
   6516      *
   6517      * @return Returns the same Intent object, for chaining multiple calls
   6518      * into a single statement.
   6519      *
   6520      * @see #putExtras
   6521      * @see #removeExtra
   6522      * @see #getBundleExtra(String)
   6523      */
   6524     public Intent putExtra(String name, Bundle value) {
   6525         if (mExtras == null) {
   6526             mExtras = new Bundle();
   6527         }
   6528         mExtras.putBundle(name, value);
   6529         return this;
   6530     }
   6531 
   6532     /**
   6533      * Add extended data to the intent.  The name must include a package
   6534      * prefix, for example the app com.android.contacts would use names
   6535      * like "com.android.contacts.ShowAll".
   6536      *
   6537      * @param name The name of the extra data, with package prefix.
   6538      * @param value The IBinder data value.
   6539      *
   6540      * @return Returns the same Intent object, for chaining multiple calls
   6541      * into a single statement.
   6542      *
   6543      * @see #putExtras
   6544      * @see #removeExtra
   6545      * @see #getIBinderExtra(String)
   6546      *
   6547      * @deprecated
   6548      * @hide
   6549      */
   6550     @Deprecated
   6551     public Intent putExtra(String name, IBinder value) {
   6552         if (mExtras == null) {
   6553             mExtras = new Bundle();
   6554         }
   6555         mExtras.putIBinder(name, value);
   6556         return this;
   6557     }
   6558 
   6559     /**
   6560      * Copy all extras in 'src' in to this intent.
   6561      *
   6562      * @param src Contains the extras to copy.
   6563      *
   6564      * @see #putExtra
   6565      */
   6566     public Intent putExtras(Intent src) {
   6567         if (src.mExtras != null) {
   6568             if (mExtras == null) {
   6569                 mExtras = new Bundle(src.mExtras);
   6570             } else {
   6571                 mExtras.putAll(src.mExtras);
   6572             }
   6573         }
   6574         return this;
   6575     }
   6576 
   6577     /**
   6578      * Add a set of extended data to the intent.  The keys must include a package
   6579      * prefix, for example the app com.android.contacts would use names
   6580      * like "com.android.contacts.ShowAll".
   6581      *
   6582      * @param extras The Bundle of extras to add to this intent.
   6583      *
   6584      * @see #putExtra
   6585      * @see #removeExtra
   6586      */
   6587     public Intent putExtras(Bundle extras) {
   6588         if (mExtras == null) {
   6589             mExtras = new Bundle();
   6590         }
   6591         mExtras.putAll(extras);
   6592         return this;
   6593     }
   6594 
   6595     /**
   6596      * Completely replace the extras in the Intent with the extras in the
   6597      * given Intent.
   6598      *
   6599      * @param src The exact extras contained in this Intent are copied
   6600      * into the target intent, replacing any that were previously there.
   6601      */
   6602     public Intent replaceExtras(Intent src) {
   6603         mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
   6604         return this;
   6605     }
   6606 
   6607     /**
   6608      * Completely replace the extras in the Intent with the given Bundle of
   6609      * extras.
   6610      *
   6611      * @param extras The new set of extras in the Intent, or null to erase
   6612      * all extras.
   6613      */
   6614     public Intent replaceExtras(Bundle extras) {
   6615         mExtras = extras != null ? new Bundle(extras) : null;
   6616         return this;
   6617     }
   6618 
   6619     /**
   6620      * Remove extended data from the intent.
   6621      *
   6622      * @see #putExtra
   6623      */
   6624     public void removeExtra(String name) {
   6625         if (mExtras != null) {
   6626             mExtras.remove(name);
   6627             if (mExtras.size() == 0) {
   6628                 mExtras = null;
   6629             }
   6630         }
   6631     }
   6632 
   6633     /**
   6634      * Set special flags controlling how this intent is handled.  Most values
   6635      * here depend on the type of component being executed by the Intent,
   6636      * specifically the FLAG_ACTIVITY_* flags are all for use with
   6637      * {@link Context#startActivity Context.startActivity()} and the
   6638      * FLAG_RECEIVER_* flags are all for use with
   6639      * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
   6640      *
   6641      * <p>See the
   6642      * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
   6643      * Stack</a> documentation for important information on how some of these options impact
   6644      * the behavior of your application.
   6645      *
   6646      * @param flags The desired flags.
   6647      *
   6648      * @return Returns the same Intent object, for chaining multiple calls
   6649      * into a single statement.
   6650      *
   6651      * @see #getFlags
   6652      * @see #addFlags
   6653      *
   6654      * @see #FLAG_GRANT_READ_URI_PERMISSION
   6655      * @see #FLAG_GRANT_WRITE_URI_PERMISSION
   6656      * @see #FLAG_GRANT_PERSISTABLE_URI_PERMISSION
   6657      * @see #FLAG_GRANT_PREFIX_URI_PERMISSION
   6658      * @see #FLAG_DEBUG_LOG_RESOLUTION
   6659      * @see #FLAG_FROM_BACKGROUND
   6660      * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
   6661      * @see #FLAG_ACTIVITY_CLEAR_TASK
   6662      * @see #FLAG_ACTIVITY_CLEAR_TOP
   6663      * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
   6664      * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
   6665      * @see #FLAG_ACTIVITY_FORWARD_RESULT
   6666      * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
   6667      * @see #FLAG_ACTIVITY_MULTIPLE_TASK
   6668      * @see #FLAG_ACTIVITY_NEW_DOCUMENT
   6669      * @see #FLAG_ACTIVITY_NEW_TASK
   6670      * @see #FLAG_ACTIVITY_NO_ANIMATION
   6671      * @see #FLAG_ACTIVITY_NO_HISTORY
   6672      * @see #FLAG_ACTIVITY_NO_USER_ACTION
   6673      * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
   6674      * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
   6675      * @see #FLAG_ACTIVITY_REORDER_TO_FRONT
   6676      * @see #FLAG_ACTIVITY_SINGLE_TOP
   6677      * @see #FLAG_ACTIVITY_TASK_ON_HOME
   6678      * @see #FLAG_RECEIVER_REGISTERED_ONLY
   6679      */
   6680     public Intent setFlags(int flags) {
   6681         mFlags = flags;
   6682         return this;
   6683     }
   6684 
   6685     /**
   6686      * Add additional flags to the intent (or with existing flags
   6687      * value).
   6688      *
   6689      * @param flags The new flags to set.
   6690      *
   6691      * @return Returns the same Intent object, for chaining multiple calls
   6692      * into a single statement.
   6693      *
   6694      * @see #setFlags
   6695      */
   6696     public Intent addFlags(int flags) {
   6697         mFlags |= flags;
   6698         return this;
   6699     }
   6700 
   6701     /**
   6702      * (Usually optional) Set an explicit application package name that limits
   6703      * the components this Intent will resolve to.  If left to the default
   6704      * value of null, all components in all applications will considered.
   6705      * If non-null, the Intent can only match the components in the given
   6706      * application package.
   6707      *
   6708      * @param packageName The name of the application package to handle the
   6709      * intent, or null to allow any application package.
   6710      *
   6711      * @return Returns the same Intent object, for chaining multiple calls
   6712      * into a single statement.
   6713      *
   6714      * @see #getPackage
   6715      * @see #resolveActivity
   6716      */
   6717     public Intent setPackage(String packageName) {
   6718         if (packageName != null && mSelector != null) {
   6719             throw new IllegalArgumentException(
   6720                     "Can't set package name when selector is already set");
   6721         }
   6722         mPackage = packageName;
   6723         return this;
   6724     }
   6725 
   6726     /**
   6727      * (Usually optional) Explicitly set the component to handle the intent.
   6728      * If left with the default value of null, the system will determine the
   6729      * appropriate class to use based on the other fields (action, data,
   6730      * type, categories) in the Intent.  If this class is defined, the
   6731      * specified class will always be used regardless of the other fields.  You
   6732      * should only set this value when you know you absolutely want a specific
   6733      * class to be used; otherwise it is better to let the system find the
   6734      * appropriate class so that you will respect the installed applications
   6735      * and user preferences.
   6736      *
   6737      * @param component The name of the application component to handle the
   6738      * intent, or null to let the system find one for you.
   6739      *
   6740      * @return Returns the same Intent object, for chaining multiple calls
   6741      * into a single statement.
   6742      *
   6743      * @see #setClass
   6744      * @see #setClassName(Context, String)
   6745      * @see #setClassName(String, String)
   6746      * @see #getComponent
   6747      * @see #resolveActivity
   6748      */
   6749     public Intent setComponent(ComponentName component) {
   6750         mComponent = component;
   6751         return this;
   6752     }
   6753 
   6754     /**
   6755      * Convenience for calling {@link #setComponent} with an
   6756      * explicit class name.
   6757      *
   6758      * @param packageContext A Context of the application package implementing
   6759      * this class.
   6760      * @param className The name of a class inside of the application package
   6761      * that will be used as the component for this Intent.
   6762      *
   6763      * @return Returns the same Intent object, for chaining multiple calls
   6764      * into a single statement.
   6765      *
   6766      * @see #setComponent
   6767      * @see #setClass
   6768      */
   6769     public Intent setClassName(Context packageContext, String className) {
   6770         mComponent = new ComponentName(packageContext, className);
   6771         return this;
   6772     }
   6773 
   6774     /**
   6775      * Convenience for calling {@link #setComponent} with an
   6776      * explicit application package name and class name.
   6777      *
   6778      * @param packageName The name of the package implementing the desired
   6779      * component.
   6780      * @param className The name of a class inside of the application package
   6781      * that will be used as the component for this Intent.
   6782      *
   6783      * @return Returns the same Intent object, for chaining multiple calls
   6784      * into a single statement.
   6785      *
   6786      * @see #setComponent
   6787      * @see #setClass
   6788      */
   6789     public Intent setClassName(String packageName, String className) {
   6790         mComponent = new ComponentName(packageName, className);
   6791         return this;
   6792     }
   6793 
   6794     /**
   6795      * Convenience for calling {@link #setComponent(ComponentName)} with the
   6796      * name returned by a {@link Class} object.
   6797      *
   6798      * @param packageContext A Context of the application package implementing
   6799      * this class.
   6800      * @param cls The class name to set, equivalent to
   6801      *            <code>setClassName(context, cls.getName())</code>.
   6802      *
   6803      * @return Returns the same Intent object, for chaining multiple calls
   6804      * into a single statement.
   6805      *
   6806      * @see #setComponent
   6807      */
   6808     public Intent setClass(Context packageContext, Class<?> cls) {
   6809         mComponent = new ComponentName(packageContext, cls);
   6810         return this;
   6811     }
   6812 
   6813     /**
   6814      * Set the bounds of the sender of this intent, in screen coordinates.  This can be
   6815      * used as a hint to the receiver for animations and the like.  Null means that there
   6816      * is no source bounds.
   6817      */
   6818     public void setSourceBounds(Rect r) {
   6819         if (r != null) {
   6820             mSourceBounds = new Rect(r);
   6821         } else {
   6822             mSourceBounds = null;
   6823         }
   6824     }
   6825 
   6826     /** @hide */
   6827     @IntDef(flag = true,
   6828             value = {
   6829                     FILL_IN_ACTION,
   6830                     FILL_IN_DATA,
   6831                     FILL_IN_CATEGORIES,
   6832                     FILL_IN_COMPONENT,
   6833                     FILL_IN_PACKAGE,
   6834                     FILL_IN_SOURCE_BOUNDS,
   6835                     FILL_IN_SELECTOR,
   6836                     FILL_IN_CLIP_DATA
   6837             })
   6838     @Retention(RetentionPolicy.SOURCE)
   6839     public @interface FillInFlags {}
   6840 
   6841     /**
   6842      * Use with {@link #fillIn} to allow the current action value to be
   6843      * overwritten, even if it is already set.
   6844      */
   6845     public static final int FILL_IN_ACTION = 1<<0;
   6846 
   6847     /**
   6848      * Use with {@link #fillIn} to allow the current data or type value
   6849      * overwritten, even if it is already set.
   6850      */
   6851     public static final int FILL_IN_DATA = 1<<1;
   6852 
   6853     /**
   6854      * Use with {@link #fillIn} to allow the current categories to be
   6855      * overwritten, even if they are already set.
   6856      */
   6857     public static final int FILL_IN_CATEGORIES = 1<<2;
   6858 
   6859     /**
   6860      * Use with {@link #fillIn} to allow the current component value to be
   6861      * overwritten, even if it is already set.
   6862      */
   6863     public static final int FILL_IN_COMPONENT = 1<<3;
   6864 
   6865     /**
   6866      * Use with {@link #fillIn} to allow the current package value to be
   6867      * overwritten, even if it is already set.
   6868      */
   6869     public static final int FILL_IN_PACKAGE = 1<<4;
   6870 
   6871     /**
   6872      * Use with {@link #fillIn} to allow the current bounds rectangle to be
   6873      * overwritten, even if it is already set.
   6874      */
   6875     public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
   6876 
   6877     /**
   6878      * Use with {@link #fillIn} to allow the current selector to be
   6879      * overwritten, even if it is already set.
   6880      */
   6881     public static final int FILL_IN_SELECTOR = 1<<6;
   6882 
   6883     /**
   6884      * Use with {@link #fillIn} to allow the current ClipData to be
   6885      * overwritten, even if it is already set.
   6886      */
   6887     public static final int FILL_IN_CLIP_DATA = 1<<7;
   6888 
   6889     /**
   6890      * Copy the contents of <var>other</var> in to this object, but only
   6891      * where fields are not defined by this object.  For purposes of a field
   6892      * being defined, the following pieces of data in the Intent are
   6893      * considered to be separate fields:
   6894      *
   6895      * <ul>
   6896      * <li> action, as set by {@link #setAction}.
   6897      * <li> data Uri and MIME type, as set by {@link #setData(Uri)},
   6898      * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
   6899      * <li> categories, as set by {@link #addCategory}.
   6900      * <li> package, as set by {@link #setPackage}.
   6901      * <li> component, as set by {@link #setComponent(ComponentName)} or
   6902      * related methods.
   6903      * <li> source bounds, as set by {@link #setSourceBounds}.
   6904      * <li> selector, as set by {@link #setSelector(Intent)}.
   6905      * <li> clip data, as set by {@link #setClipData(ClipData)}.
   6906      * <li> each top-level name in the associated extras.
   6907      * </ul>
   6908      *
   6909      * <p>In addition, you can use the {@link #FILL_IN_ACTION},
   6910      * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
   6911      * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS},
   6912      * {@link #FILL_IN_SELECTOR}, and {@link #FILL_IN_CLIP_DATA} to override
   6913      * the restriction where the corresponding field will not be replaced if
   6914      * it is already set.
   6915      *
   6916      * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT}
   6917      * is explicitly specified.  The selector will only be copied if
   6918      * {@link #FILL_IN_SELECTOR} is explicitly specified.
   6919      *
   6920      * <p>For example, consider Intent A with {data="foo", categories="bar"}
   6921      * and Intent B with {action="gotit", data-type="some/thing",
   6922      * categories="one","two"}.
   6923      *
   6924      * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
   6925      * containing: {action="gotit", data-type="some/thing",
   6926      * categories="bar"}.
   6927      *
   6928      * @param other Another Intent whose values are to be used to fill in
   6929      * the current one.
   6930      * @param flags Options to control which fields can be filled in.
   6931      *
   6932      * @return Returns a bit mask of {@link #FILL_IN_ACTION},
   6933      * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
   6934      * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS},
   6935      * {@link #FILL_IN_SELECTOR} and {@link #FILL_IN_CLIP_DATA indicating which fields were
   6936      * changed.
   6937      */
   6938     @FillInFlags
   6939     public int fillIn(Intent other, @FillInFlags int flags) {
   6940         int changes = 0;
   6941         boolean mayHaveCopiedUris = false;
   6942         if (other.mAction != null
   6943                 && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
   6944             mAction = other.mAction;
   6945             changes |= FILL_IN_ACTION;
   6946         }
   6947         if ((other.mData != null || other.mType != null)
   6948                 && ((mData == null && mType == null)
   6949                         || (flags&FILL_IN_DATA) != 0)) {
   6950             mData = other.mData;
   6951             mType = other.mType;
   6952             changes |= FILL_IN_DATA;
   6953             mayHaveCopiedUris = true;
   6954         }
   6955         if (other.mCategories != null
   6956                 && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
   6957             if (other.mCategories != null) {
   6958                 mCategories = new ArraySet<String>(other.mCategories);
   6959             }
   6960             changes |= FILL_IN_CATEGORIES;
   6961         }
   6962         if (other.mPackage != null
   6963                 && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
   6964             // Only do this if mSelector is not set.
   6965             if (mSelector == null) {
   6966                 mPackage = other.mPackage;
   6967                 changes |= FILL_IN_PACKAGE;
   6968             }
   6969         }
   6970         // Selector is special: it can only be set if explicitly allowed,
   6971         // for the same reason as the component name.
   6972         if (other.mSelector != null && (flags&FILL_IN_SELECTOR) != 0) {
   6973             if (mPackage == null) {
   6974                 mSelector = new Intent(other.mSelector);
   6975                 mPackage = null;
   6976                 changes |= FILL_IN_SELECTOR;
   6977             }
   6978         }
   6979         if (other.mClipData != null
   6980                 && (mClipData == null || (flags&FILL_IN_CLIP_DATA) != 0)) {
   6981             mClipData = other.mClipData;
   6982             changes |= FILL_IN_CLIP_DATA;
   6983             mayHaveCopiedUris = true;
   6984         }
   6985         // Component is special: it can -only- be set if explicitly allowed,
   6986         // since otherwise the sender could force the intent somewhere the
   6987         // originator didn't intend.
   6988         if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
   6989             mComponent = other.mComponent;
   6990             changes |= FILL_IN_COMPONENT;
   6991         }
   6992         mFlags |= other.mFlags;
   6993         if (other.mSourceBounds != null
   6994                 && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
   6995             mSourceBounds = new Rect(other.mSourceBounds);
   6996             changes |= FILL_IN_SOURCE_BOUNDS;
   6997         }
   6998         if (mExtras == null) {
   6999             if (other.mExtras != null) {
   7000                 mExtras = new Bundle(other.mExtras);
   7001                 mayHaveCopiedUris = true;
   7002             }
   7003         } else if (other.mExtras != null) {
   7004             try {
   7005                 Bundle newb = new Bundle(other.mExtras);
   7006                 newb.putAll(mExtras);
   7007                 mExtras = newb;
   7008                 mayHaveCopiedUris = true;
   7009             } catch (RuntimeException e) {
   7010                 // Modifying the extras can cause us to unparcel the contents
   7011                 // of the bundle, and if we do this in the system process that
   7012                 // may fail.  We really should handle this (i.e., the Bundle
   7013                 // impl shouldn't be on top of a plain map), but for now just
   7014                 // ignore it and keep the original contents. :(
   7015                 Log.w("Intent", "Failure filling in extras", e);
   7016             }
   7017         }
   7018         if (mayHaveCopiedUris && mContentUserHint == UserHandle.USER_CURRENT
   7019                 && other.mContentUserHint != UserHandle.USER_CURRENT) {
   7020             mContentUserHint = other.mContentUserHint;
   7021         }
   7022         return changes;
   7023     }
   7024 
   7025     /**
   7026      * Wrapper class holding an Intent and implementing comparisons on it for
   7027      * the purpose of filtering.  The class implements its
   7028      * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
   7029      * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
   7030      * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
   7031      * on the wrapped Intent.
   7032      */
   7033     public static final class FilterComparison {
   7034         private final Intent mIntent;
   7035         private final int mHashCode;
   7036 
   7037         public FilterComparison(Intent intent) {
   7038             mIntent = intent;
   7039             mHashCode = intent.filterHashCode();
   7040         }
   7041 
   7042         /**
   7043          * Return the Intent that this FilterComparison represents.
   7044          * @return Returns the Intent held by the FilterComparison.  Do
   7045          * not modify!
   7046          */
   7047         public Intent getIntent() {
   7048             return mIntent;
   7049         }
   7050 
   7051         @Override
   7052         public boolean equals(Object obj) {
   7053             if (obj instanceof FilterComparison) {
   7054                 Intent other = ((FilterComparison)obj).mIntent;
   7055                 return mIntent.filterEquals(other);
   7056             }
   7057             return false;
   7058         }
   7059 
   7060         @Override
   7061         public int hashCode() {
   7062             return mHashCode;
   7063         }
   7064     }
   7065 
   7066     /**
   7067      * Determine if two intents are the same for the purposes of intent
   7068      * resolution (filtering). That is, if their action, data, type,
   7069      * class, and categories are the same.  This does <em>not</em> compare
   7070      * any extra data included in the intents.
   7071      *
   7072      * @param other The other Intent to compare against.
   7073      *
   7074      * @return Returns true if action, data, type, class, and categories
   7075      *         are the same.
   7076      */
   7077     public boolean filterEquals(Intent other) {
   7078         if (other == null) {
   7079             return false;
   7080         }
   7081         if (!Objects.equals(this.mAction, other.mAction)) return false;
   7082         if (!Objects.equals(this.mData, other.mData)) return false;
   7083         if (!Objects.equals(this.mType, other.mType)) return false;
   7084         if (!Objects.equals(this.mPackage, other.mPackage)) return false;
   7085         if (!Objects.equals(this.mComponent, other.mComponent)) return false;
   7086         if (!Objects.equals(this.mCategories, other.mCategories)) return false;
   7087 
   7088         return true;
   7089     }
   7090 
   7091     /**
   7092      * Generate hash code that matches semantics of filterEquals().
   7093      *
   7094      * @return Returns the hash value of the action, data, type, class, and
   7095      *         categories.
   7096      *
   7097      * @see #filterEquals
   7098      */
   7099     public int filterHashCode() {
   7100         int code = 0;
   7101         if (mAction != null) {
   7102             code += mAction.hashCode();
   7103         }
   7104         if (mData != null) {
   7105             code += mData.hashCode();
   7106         }
   7107         if (mType != null) {
   7108             code += mType.hashCode();
   7109         }
   7110         if (mPackage != null) {
   7111             code += mPackage.hashCode();
   7112         }
   7113         if (mComponent != null) {
   7114             code += mComponent.hashCode();
   7115         }
   7116         if (mCategories != null) {
   7117             code += mCategories.hashCode();
   7118         }
   7119         return code;
   7120     }
   7121 
   7122     @Override
   7123     public String toString() {
   7124         StringBuilder b = new StringBuilder(128);
   7125 
   7126         b.append("Intent { ");
   7127         toShortString(b, true, true, true, false);
   7128         b.append(" }");
   7129 
   7130         return b.toString();
   7131     }
   7132 
   7133     /** @hide */
   7134     public String toInsecureString() {
   7135         StringBuilder b = new StringBuilder(128);
   7136 
   7137         b.append("Intent { ");
   7138         toShortString(b, false, true, true, false);
   7139         b.append(" }");
   7140 
   7141         return b.toString();
   7142     }
   7143 
   7144     /** @hide */
   7145     public String toInsecureStringWithClip() {
   7146         StringBuilder b = new StringBuilder(128);
   7147 
   7148         b.append("Intent { ");
   7149         toShortString(b, false, true, true, true);
   7150         b.append(" }");
   7151 
   7152         return b.toString();
   7153     }
   7154 
   7155     /** @hide */
   7156     public String toShortString(boolean secure, boolean comp, boolean extras, boolean clip) {
   7157         StringBuilder b = new StringBuilder(128);
   7158         toShortString(b, secure, comp, extras, clip);
   7159         return b.toString();
   7160     }
   7161 
   7162     /** @hide */
   7163     public void toShortString(StringBuilder b, boolean secure, boolean comp, boolean extras,
   7164             boolean clip) {
   7165         boolean first = true;
   7166         if (mAction != null) {
   7167             b.append("act=").append(mAction);
   7168             first = false;
   7169         }
   7170         if (mCategories != null) {
   7171             if (!first) {
   7172                 b.append(' ');
   7173             }
   7174             first = false;
   7175             b.append("cat=[");
   7176             for (int i=0; i<mCategories.size(); i++) {
   7177                 if (i > 0) b.append(',');
   7178                 b.append(mCategories.valueAt(i));
   7179             }
   7180             b.append("]");
   7181         }
   7182         if (mData != null) {
   7183             if (!first) {
   7184                 b.append(' ');
   7185             }
   7186             first = false;
   7187             b.append("dat=");
   7188             if (secure) {
   7189                 b.append(mData.toSafeString());
   7190             } else {
   7191                 b.append(mData);
   7192             }
   7193         }
   7194         if (mType != null) {
   7195             if (!first) {
   7196                 b.append(' ');
   7197             }
   7198             first = false;
   7199             b.append("typ=").append(mType);
   7200         }
   7201         if (mFlags != 0) {
   7202             if (!first) {
   7203                 b.append(' ');
   7204             }
   7205             first = false;
   7206             b.append("flg=0x").append(Integer.toHexString(mFlags));
   7207         }
   7208         if (mPackage != null) {
   7209             if (!first) {
   7210                 b.append(' ');
   7211             }
   7212             first = false;
   7213             b.append("pkg=").append(mPackage);
   7214         }
   7215         if (comp && mComponent != null) {
   7216             if (!first) {
   7217                 b.append(' ');
   7218             }
   7219             first = false;
   7220             b.append("cmp=").append(mComponent.flattenToShortString());
   7221         }
   7222         if (mSourceBounds != null) {
   7223             if (!first) {
   7224                 b.append(' ');
   7225             }
   7226             first = false;
   7227             b.append("bnds=").append(mSourceBounds.toShortString());
   7228         }
   7229         if (mClipData != null) {
   7230             if (!first) {
   7231                 b.append(' ');
   7232             }
   7233             first = false;
   7234             if (clip) {
   7235                 b.append("clip={");
   7236                 mClipData.toShortString(b);
   7237                 b.append('}');
   7238             } else {
   7239                 b.append("(has clip)");
   7240             }
   7241         }
   7242         if (extras && mExtras != null) {
   7243             if (!first) {
   7244                 b.append(' ');
   7245             }
   7246             first = false;
   7247             b.append("(has extras)");
   7248         }
   7249         if (mContentUserHint != UserHandle.USER_CURRENT) {
   7250             if (!first) {
   7251                 b.append(' ');
   7252             }
   7253             first = false;
   7254             b.append("u=").append(mContentUserHint);
   7255         }
   7256         if (mSelector != null) {
   7257             b.append(" sel=");
   7258             mSelector.toShortString(b, secure, comp, extras, clip);
   7259             b.append("}");
   7260         }
   7261     }
   7262 
   7263     /**
   7264      * Call {@link #toUri} with 0 flags.
   7265      * @deprecated Use {@link #toUri} instead.
   7266      */
   7267     @Deprecated
   7268     public String toURI() {
   7269         return toUri(0);
   7270     }
   7271 
   7272     /**
   7273      * Convert this Intent into a String holding a URI representation of it.
   7274      * The returned URI string has been properly URI encoded, so it can be
   7275      * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
   7276      * Intent's data as the base URI, with an additional fragment describing
   7277      * the action, categories, type, flags, package, component, and extras.
   7278      *
   7279      * <p>You can convert the returned string back to an Intent with
   7280      * {@link #getIntent}.
   7281      *
   7282      * @param flags Additional operating flags.  Either 0,
   7283      * {@link #URI_INTENT_SCHEME}, or {@link #URI_ANDROID_APP_SCHEME}.
   7284      *
   7285      * @return Returns a URI encoding URI string describing the entire contents
   7286      * of the Intent.
   7287      */
   7288     public String toUri(int flags) {
   7289         StringBuilder uri = new StringBuilder(128);
   7290         if ((flags&URI_ANDROID_APP_SCHEME) != 0) {
   7291             if (mPackage == null) {
   7292                 throw new IllegalArgumentException(
   7293                         "Intent must include an explicit package name to build an android-app: "
   7294                         + this);
   7295             }
   7296             uri.append("android-app://");
   7297             uri.append(mPackage);
   7298             String scheme = null;
   7299             if (mData != null) {
   7300                 scheme = mData.getScheme();
   7301                 if (scheme != null) {
   7302                     uri.append('/');
   7303                     uri.append(scheme);
   7304                     String authority = mData.getEncodedAuthority();
   7305                     if (authority != null) {
   7306                         uri.append('/');
   7307                         uri.append(authority);
   7308                         String path = mData.getEncodedPath();
   7309                         if (path != null) {
   7310                             uri.append(path);
   7311                         }
   7312                         String queryParams = mData.getEncodedQuery();
   7313                         if (queryParams != null) {
   7314                             uri.append('?');
   7315                             uri.append(queryParams);
   7316                         }
   7317                         String fragment = mData.getEncodedFragment();
   7318                         if (fragment != null) {
   7319                             uri.append('#');
   7320                             uri.append(fragment);
   7321                         }
   7322                     }
   7323                 }
   7324             }
   7325             toUriFragment(uri, null, scheme == null ? Intent.ACTION_MAIN : Intent.ACTION_VIEW,
   7326                     mPackage, flags);
   7327             return uri.toString();
   7328         }
   7329         String scheme = null;
   7330         if (mData != null) {
   7331             String data = mData.toString();
   7332             if ((flags&URI_INTENT_SCHEME) != 0) {
   7333                 final int N = data.length();
   7334                 for (int i=0; i<N; i++) {
   7335                     char c = data.charAt(i);
   7336                     if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
   7337                             || c == '.' || c == '-') {
   7338                         continue;
   7339                     }
   7340                     if (c == ':' && i > 0) {
   7341                         // Valid scheme.
   7342                         scheme = data.substring(0, i);
   7343                         uri.append("intent:");
   7344                         data = data.substring(i+1);
   7345                         break;
   7346                     }
   7347 
   7348                     // No scheme.
   7349                     break;
   7350                 }
   7351             }
   7352             uri.append(data);
   7353 
   7354         } else if ((flags&URI_INTENT_SCHEME) != 0) {
   7355             uri.append("intent:");
   7356         }
   7357 
   7358         toUriFragment(uri, scheme, Intent.ACTION_VIEW, null, flags);
   7359 
   7360         return uri.toString();
   7361     }
   7362 
   7363     private void toUriFragment(StringBuilder uri, String scheme, String defAction,
   7364             String defPackage, int flags) {
   7365         StringBuilder frag = new StringBuilder(128);
   7366 
   7367         toUriInner(frag, scheme, defAction, defPackage, flags);
   7368         if (mSelector != null) {
   7369             frag.append("SEL;");
   7370             // Note that for now we are not going to try to handle the
   7371             // data part; not clear how to represent this as a URI, and
   7372             // not much utility in it.
   7373             mSelector.toUriInner(frag, mSelector.mData != null ? mSelector.mData.getScheme() : null,
   7374                     null, null, flags);
   7375         }
   7376 
   7377         if (frag.length() > 0) {
   7378             uri.append("#Intent;");
   7379             uri.append(frag);
   7380             uri.append("end");
   7381         }
   7382     }
   7383 
   7384     private void toUriInner(StringBuilder uri, String scheme, String defAction,
   7385             String defPackage, int flags) {
   7386         if (scheme != null) {
   7387             uri.append("scheme=").append(scheme).append(';');
   7388         }
   7389         if (mAction != null && !mAction.equals(defAction)) {
   7390             uri.append("action=").append(Uri.encode(mAction)).append(';');
   7391         }
   7392         if (mCategories != null) {
   7393             for (int i=0; i<mCategories.size(); i++) {
   7394                 uri.append("category=").append(Uri.encode(mCategories.valueAt(i))).append(';');
   7395             }
   7396         }
   7397         if (mType != null) {
   7398             uri.append("type=").append(Uri.encode(mType, "/")).append(';');
   7399         }
   7400         if (mFlags != 0) {
   7401             uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
   7402         }
   7403         if (mPackage != null && !mPackage.equals(defPackage)) {
   7404             uri.append("package=").append(Uri.encode(mPackage)).append(';');
   7405         }
   7406         if (mComponent != null) {
   7407             uri.append("component=").append(Uri.encode(
   7408                     mComponent.flattenToShortString(), "/")).append(';');
   7409         }
   7410         if (mSourceBounds != null) {
   7411             uri.append("sourceBounds=")
   7412                     .append(Uri.encode(mSourceBounds.flattenToString()))
   7413                     .append(';');
   7414         }
   7415         if (mExtras != null) {
   7416             for (String key : mExtras.keySet()) {
   7417                 final Object value = mExtras.get(key);
   7418                 char entryType =
   7419                         value instanceof String    ? 'S' :
   7420                         value instanceof Boolean   ? 'B' :
   7421                         value instanceof Byte      ? 'b' :
   7422                         value instanceof Character ? 'c' :
   7423                         value instanceof Double    ? 'd' :
   7424                         value instanceof Float     ? 'f' :
   7425                         value instanceof Integer   ? 'i' :
   7426                         value instanceof Long      ? 'l' :
   7427                         value instanceof Short     ? 's' :
   7428                         '\0';
   7429 
   7430                 if (entryType != '\0') {
   7431                     uri.append(entryType);
   7432                     uri.append('.');
   7433                     uri.append(Uri.encode(key));
   7434                     uri.append('=');
   7435                     uri.append(Uri.encode(value.toString()));
   7436                     uri.append(';');
   7437                 }
   7438             }
   7439         }
   7440     }
   7441 
   7442     public int describeContents() {
   7443         return (mExtras != null) ? mExtras.describeContents() : 0;
   7444     }
   7445 
   7446     public void writeToParcel(Parcel out, int flags) {
   7447         out.writeString(mAction);
   7448         Uri.writeToParcel(out, mData);
   7449         out.writeString(mType);
   7450         out.writeInt(mFlags);
   7451         out.writeString(mPackage);
   7452         ComponentName.writeToParcel(mComponent, out);
   7453 
   7454         if (mSourceBounds != null) {
   7455             out.writeInt(1);
   7456             mSourceBounds.writeToParcel(out, flags);
   7457         } else {
   7458             out.writeInt(0);
   7459         }
   7460 
   7461         if (mCategories != null) {
   7462             final int N = mCategories.size();
   7463             out.writeInt(N);
   7464             for (int i=0; i<N; i++) {
   7465                 out.writeString(mCategories.valueAt(i));
   7466             }
   7467         } else {
   7468             out.writeInt(0);
   7469         }
   7470 
   7471         if (mSelector != null) {
   7472             out.writeInt(1);
   7473             mSelector.writeToParcel(out, flags);
   7474         } else {
   7475             out.writeInt(0);
   7476         }
   7477 
   7478         if (mClipData != null) {
   7479             out.writeInt(1);
   7480             mClipData.writeToParcel(out, flags);
   7481         } else {
   7482             out.writeInt(0);
   7483         }
   7484         out.writeInt(mContentUserHint);
   7485         out.writeBundle(mExtras);
   7486     }
   7487 
   7488     public static final Parcelable.Creator<Intent> CREATOR
   7489             = new Parcelable.Creator<Intent>() {
   7490         public Intent createFromParcel(Parcel in) {
   7491             return new Intent(in);
   7492         }
   7493         public Intent[] newArray(int size) {
   7494             return new Intent[size];
   7495         }
   7496     };
   7497 
   7498     /** @hide */
   7499     protected Intent(Parcel in) {
   7500         readFromParcel(in);
   7501     }
   7502 
   7503     public void readFromParcel(Parcel in) {
   7504         setAction(in.readString());
   7505         mData = Uri.CREATOR.createFromParcel(in);
   7506         mType = in.readString();
   7507         mFlags = in.readInt();
   7508         mPackage = in.readString();
   7509         mComponent = ComponentName.readFromParcel(in);
   7510 
   7511         if (in.readInt() != 0) {
   7512             mSourceBounds = Rect.CREATOR.createFromParcel(in);
   7513         }
   7514 
   7515         int N = in.readInt();
   7516         if (N > 0) {
   7517             mCategories = new ArraySet<String>();
   7518             int i;
   7519             for (i=0; i<N; i++) {
   7520                 mCategories.add(in.readString().intern());
   7521             }
   7522         } else {
   7523             mCategories = null;
   7524         }
   7525 
   7526         if (in.readInt() != 0) {
   7527             mSelector = new Intent(in);
   7528         }
   7529 
   7530         if (in.readInt() != 0) {
   7531             mClipData = new ClipData(in);
   7532         }
   7533         mContentUserHint = in.readInt();
   7534         mExtras = in.readBundle();
   7535     }
   7536 
   7537     /**
   7538      * Parses the "intent" element (and its children) from XML and instantiates
   7539      * an Intent object.  The given XML parser should be located at the tag
   7540      * where parsing should start (often named "intent"), from which the
   7541      * basic action, data, type, and package and class name will be
   7542      * retrieved.  The function will then parse in to any child elements,
   7543      * looking for <category android:name="xxx"> tags to add categories and
   7544      * <extra android:name="xxx" android:value="yyy"> to attach extra data
   7545      * to the intent.
   7546      *
   7547      * @param resources The Resources to use when inflating resources.
   7548      * @param parser The XML parser pointing at an "intent" tag.
   7549      * @param attrs The AttributeSet interface for retrieving extended
   7550      * attribute data at the current <var>parser</var> location.
   7551      * @return An Intent object matching the XML data.
   7552      * @throws XmlPullParserException If there was an XML parsing error.
   7553      * @throws IOException If there was an I/O error.
   7554      */
   7555     public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
   7556             throws XmlPullParserException, IOException {
   7557         Intent intent = new Intent();
   7558 
   7559         TypedArray sa = resources.obtainAttributes(attrs,
   7560                 com.android.internal.R.styleable.Intent);
   7561 
   7562         intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
   7563 
   7564         String data = sa.getString(com.android.internal.R.styleable.Intent_data);
   7565         String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
   7566         intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
   7567 
   7568         String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
   7569         String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
   7570         if (packageName != null && className != null) {
   7571             intent.setComponent(new ComponentName(packageName, className));
   7572         }
   7573 
   7574         sa.recycle();
   7575 
   7576         int outerDepth = parser.getDepth();
   7577         int type;
   7578         while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
   7579                && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
   7580             if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
   7581                 continue;
   7582             }
   7583 
   7584             String nodeName = parser.getName();
   7585             if (nodeName.equals(TAG_CATEGORIES)) {
   7586                 sa = resources.obtainAttributes(attrs,
   7587                         com.android.internal.R.styleable.IntentCategory);
   7588                 String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
   7589                 sa.recycle();
   7590 
   7591                 if (cat != null) {
   7592                     intent.addCategory(cat);
   7593                 }
   7594                 XmlUtils.skipCurrentTag(parser);
   7595 
   7596             } else if (nodeName.equals(TAG_EXTRA)) {
   7597                 if (intent.mExtras == null) {
   7598                     intent.mExtras = new Bundle();
   7599                 }
   7600                 resources.parseBundleExtra(TAG_EXTRA, attrs, intent.mExtras);
   7601                 XmlUtils.skipCurrentTag(parser);
   7602 
   7603             } else {
   7604                 XmlUtils.skipCurrentTag(parser);
   7605             }
   7606         }
   7607 
   7608         return intent;
   7609     }
   7610 
   7611     /** @hide */
   7612     public void saveToXml(XmlSerializer out) throws IOException {
   7613         if (mAction != null) {
   7614             out.attribute(null, ATTR_ACTION, mAction);
   7615         }
   7616         if (mData != null) {
   7617             out.attribute(null, ATTR_DATA, mData.toString());
   7618         }
   7619         if (mType != null) {
   7620             out.attribute(null, ATTR_TYPE, mType);
   7621         }
   7622         if (mComponent != null) {
   7623             out.attribute(null, ATTR_COMPONENT, mComponent.flattenToShortString());
   7624         }
   7625         out.attribute(null, ATTR_FLAGS, Integer.toHexString(getFlags()));
   7626 
   7627         if (mCategories != null) {
   7628             out.startTag(null, TAG_CATEGORIES);
   7629             for (int categoryNdx = mCategories.size() - 1; categoryNdx >= 0; --categoryNdx) {
   7630                 out.attribute(null, ATTR_CATEGORY, mCategories.valueAt(categoryNdx));
   7631             }
   7632             out.endTag(null, TAG_CATEGORIES);
   7633         }
   7634     }
   7635 
   7636     /** @hide */
   7637     public static Intent restoreFromXml(XmlPullParser in) throws IOException,
   7638             XmlPullParserException {
   7639         Intent intent = new Intent();
   7640         final int outerDepth = in.getDepth();
   7641 
   7642         int attrCount = in.getAttributeCount();
   7643         for (int attrNdx = attrCount - 1; attrNdx >= 0; --attrNdx) {
   7644             final String attrName = in.getAttributeName(attrNdx);
   7645             final String attrValue = in.getAttributeValue(attrNdx);
   7646             if (ATTR_ACTION.equals(attrName)) {
   7647                 intent.setAction(attrValue);
   7648             } else if (ATTR_DATA.equals(attrName)) {
   7649                 intent.setData(Uri.parse(attrValue));
   7650             } else if (ATTR_TYPE.equals(attrName)) {
   7651                 intent.setType(attrValue);
   7652             } else if (ATTR_COMPONENT.equals(attrName)) {
   7653                 intent.setComponent(ComponentName.unflattenFromString(attrValue));
   7654             } else if (ATTR_FLAGS.equals(attrName)) {
   7655                 intent.setFlags(Integer.valueOf(attrValue, 16));
   7656             } else {
   7657                 Log.e("Intent", "restoreFromXml: unknown attribute=" + attrName);
   7658             }
   7659         }
   7660 
   7661         int event;
   7662         String name;
   7663         while (((event = in.next()) != XmlPullParser.END_DOCUMENT) &&
   7664                 (event != XmlPullParser.END_TAG || in.getDepth() < outerDepth)) {
   7665             if (event == XmlPullParser.START_TAG) {
   7666                 name = in.getName();
   7667                 if (TAG_CATEGORIES.equals(name)) {
   7668                     attrCount = in.getAttributeCount();
   7669                     for (int attrNdx = attrCount - 1; attrNdx >= 0; --attrNdx) {
   7670                         intent.addCategory(in.getAttributeValue(attrNdx));
   7671                     }
   7672                 } else {
   7673                     Log.w("Intent", "restoreFromXml: unknown name=" + name);
   7674                     XmlUtils.skipCurrentTag(in);
   7675                 }
   7676             }
   7677         }
   7678 
   7679         return intent;
   7680     }
   7681 
   7682     /**
   7683      * Normalize a MIME data type.
   7684      *
   7685      * <p>A normalized MIME type has white-space trimmed,
   7686      * content-type parameters removed, and is lower-case.
   7687      * This aligns the type with Android best practices for
   7688      * intent filtering.
   7689      *
   7690      * <p>For example, "text/plain; charset=utf-8" becomes "text/plain".
   7691      * "text/x-vCard" becomes "text/x-vcard".
   7692      *
   7693      * <p>All MIME types received from outside Android (such as user input,
   7694      * or external sources like Bluetooth, NFC, or the Internet) should
   7695      * be normalized before they are used to create an Intent.
   7696      *
   7697      * @param type MIME data type to normalize
   7698      * @return normalized MIME data type, or null if the input was null
   7699      * @see #setType
   7700      * @see #setTypeAndNormalize
   7701      */
   7702     public static String normalizeMimeType(String type) {
   7703         if (type == null) {
   7704             return null;
   7705         }
   7706 
   7707         type = type.trim().toLowerCase(Locale.ROOT);
   7708 
   7709         final int semicolonIndex = type.indexOf(';');
   7710         if (semicolonIndex != -1) {
   7711             type = type.substring(0, semicolonIndex);
   7712         }
   7713         return type;
   7714     }
   7715 
   7716     /**
   7717      * Prepare this {@link Intent} to leave an app process.
   7718      *
   7719      * @hide
   7720      */
   7721     public void prepareToLeaveProcess() {
   7722         setAllowFds(false);
   7723 
   7724         if (mSelector != null) {
   7725             mSelector.prepareToLeaveProcess();
   7726         }
   7727         if (mClipData != null) {
   7728             mClipData.prepareToLeaveProcess();
   7729         }
   7730 
   7731         if (mData != null && StrictMode.vmFileUriExposureEnabled()) {
   7732             // There are several ACTION_MEDIA_* broadcasts that send file://
   7733             // Uris, so only check common actions.
   7734             if (ACTION_VIEW.equals(mAction) ||
   7735                     ACTION_EDIT.equals(mAction) ||
   7736                     ACTION_ATTACH_DATA.equals(mAction)) {
   7737                 mData.checkFileUriExposed("Intent.getData()");
   7738             }
   7739         }
   7740     }
   7741 
   7742     /**
   7743      * @hide
   7744      */
   7745     public void prepareToEnterProcess() {
   7746         if (mContentUserHint != UserHandle.USER_CURRENT) {
   7747             if (UserHandle.getAppId(Process.myUid()) != Process.SYSTEM_UID) {
   7748                 fixUris(mContentUserHint);
   7749                 mContentUserHint = UserHandle.USER_CURRENT;
   7750             }
   7751         }
   7752     }
   7753 
   7754     /**
   7755      * @hide
   7756      */
   7757      public void fixUris(int contentUserHint) {
   7758         Uri data = getData();
   7759         if (data != null) {
   7760             mData = maybeAddUserId(data, contentUserHint);
   7761         }
   7762         if (mClipData != null) {
   7763             mClipData.fixUris(contentUserHint);
   7764         }
   7765         String action = getAction();
   7766         if (ACTION_SEND.equals(action)) {
   7767             final Uri stream = getParcelableExtra(EXTRA_STREAM);
   7768             if (stream != null) {
   7769                 putExtra(EXTRA_STREAM, maybeAddUserId(stream, contentUserHint));
   7770             }
   7771         } else if (ACTION_SEND_MULTIPLE.equals(action)) {
   7772             final ArrayList<Uri> streams = getParcelableArrayListExtra(EXTRA_STREAM);
   7773             if (streams != null) {
   7774                 ArrayList<Uri> newStreams = new ArrayList<Uri>();
   7775                 for (int i = 0; i < streams.size(); i++) {
   7776                     newStreams.add(maybeAddUserId(streams.get(i), contentUserHint));
   7777                 }
   7778                 putParcelableArrayListExtra(EXTRA_STREAM, newStreams);
   7779             }
   7780         } else if (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)
   7781                 || MediaStore.ACTION_IMAGE_CAPTURE_SECURE.equals(action)
   7782                 || MediaStore.ACTION_VIDEO_CAPTURE.equals(action)) {
   7783             final Uri output = getParcelableExtra(MediaStore.EXTRA_OUTPUT);
   7784             if (output != null) {
   7785                 putExtra(MediaStore.EXTRA_OUTPUT, maybeAddUserId(output, contentUserHint));
   7786             }
   7787         }
   7788      }
   7789 
   7790     /**
   7791      * Migrate any {@link #EXTRA_STREAM} in {@link #ACTION_SEND} and
   7792      * {@link #ACTION_SEND_MULTIPLE} to {@link ClipData}. Also inspects nested
   7793      * intents in {@link #ACTION_CHOOSER}.
   7794      *
   7795      * @return Whether any contents were migrated.
   7796      * @hide
   7797      */
   7798     public boolean migrateExtraStreamToClipData() {
   7799         // Refuse to touch if extras already parcelled
   7800         if (mExtras != null && mExtras.isParcelled()) return false;
   7801 
   7802         // Bail when someone already gave us ClipData
   7803         if (getClipData() != null) return false;
   7804 
   7805         final String action = getAction();
   7806         if (ACTION_CHOOSER.equals(action)) {
   7807             // Inspect contained intents to see if we need to migrate extras. We
   7808             // don't promote ClipData to the parent, since ChooserActivity will
   7809             // already start the picked item as the caller, and we can't combine
   7810             // the flags in a safe way.
   7811 
   7812             boolean migrated = false;
   7813             try {
   7814                 final Intent intent = getParcelableExtra(EXTRA_INTENT);
   7815                 if (intent != null) {
   7816                     migrated |= intent.migrateExtraStreamToClipData();
   7817                 }
   7818             } catch (ClassCastException e) {
   7819             }
   7820             try {
   7821                 final Parcelable[] intents = getParcelableArrayExtra(EXTRA_INITIAL_INTENTS);
   7822                 if (intents != null) {
   7823                     for (int i = 0; i < intents.length; i++) {
   7824                         final Intent intent = (Intent) intents[i];
   7825                         if (intent != null) {
   7826                             migrated |= intent.migrateExtraStreamToClipData();
   7827                         }
   7828                     }
   7829                 }
   7830             } catch (ClassCastException e) {
   7831             }
   7832             return migrated;
   7833 
   7834         } else if (ACTION_SEND.equals(action)) {
   7835             try {
   7836                 final Uri stream = getParcelableExtra(EXTRA_STREAM);
   7837                 final CharSequence text = getCharSequenceExtra(EXTRA_TEXT);
   7838                 final String htmlText = getStringExtra(EXTRA_HTML_TEXT);
   7839                 if (stream != null || text != null || htmlText != null) {
   7840                     final ClipData clipData = new ClipData(
   7841                             null, new String[] { getType() },
   7842                             new ClipData.Item(text, htmlText, null, stream));
   7843                     setClipData(clipData);
   7844                     addFlags(FLAG_GRANT_READ_URI_PERMISSION);
   7845                     return true;
   7846                 }
   7847             } catch (ClassCastException e) {
   7848             }
   7849 
   7850         } else if (ACTION_SEND_MULTIPLE.equals(action)) {
   7851             try {
   7852                 final ArrayList<Uri> streams = getParcelableArrayListExtra(EXTRA_STREAM);
   7853                 final ArrayList<CharSequence> texts = getCharSequenceArrayListExtra(EXTRA_TEXT);
   7854                 final ArrayList<String> htmlTexts = getStringArrayListExtra(EXTRA_HTML_TEXT);
   7855                 int num = -1;
   7856                 if (streams != null) {
   7857                     num = streams.size();
   7858                 }
   7859                 if (texts != null) {
   7860                     if (num >= 0 && num != texts.size()) {
   7861                         // Wha...!  F- you.
   7862                         return false;
   7863                     }
   7864                     num = texts.size();
   7865                 }
   7866                 if (htmlTexts != null) {
   7867                     if (num >= 0 && num != htmlTexts.size()) {
   7868                         // Wha...!  F- you.
   7869                         return false;
   7870                     }
   7871                     num = htmlTexts.size();
   7872                 }
   7873                 if (num > 0) {
   7874                     final ClipData clipData = new ClipData(
   7875                             null, new String[] { getType() },
   7876                             makeClipItem(streams, texts, htmlTexts, 0));
   7877 
   7878                     for (int i = 1; i < num; i++) {
   7879                         clipData.addItem(makeClipItem(streams, texts, htmlTexts, i));
   7880                     }
   7881 
   7882                     setClipData(clipData);
   7883                     addFlags(FLAG_GRANT_READ_URI_PERMISSION);
   7884                     return true;
   7885                 }
   7886             } catch (ClassCastException e) {
   7887             }
   7888         } else if (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)
   7889                 || MediaStore.ACTION_IMAGE_CAPTURE_SECURE.equals(action)
   7890                 || MediaStore.ACTION_VIDEO_CAPTURE.equals(action)) {
   7891             final Uri output;
   7892             try {
   7893                 output = getParcelableExtra(MediaStore.EXTRA_OUTPUT);
   7894             } catch (ClassCastException e) {
   7895                 return false;
   7896             }
   7897             if (output != null) {
   7898                 setClipData(ClipData.newRawUri("", output));
   7899                 addFlags(FLAG_GRANT_WRITE_URI_PERMISSION|FLAG_GRANT_READ_URI_PERMISSION);
   7900                 return true;
   7901             }
   7902         }
   7903 
   7904         return false;
   7905     }
   7906 
   7907     private static ClipData.Item makeClipItem(ArrayList<Uri> streams, ArrayList<CharSequence> texts,
   7908             ArrayList<String> htmlTexts, int which) {
   7909         Uri uri = streams != null ? streams.get(which) : null;
   7910         CharSequence text = texts != null ? texts.get(which) : null;
   7911         String htmlText = htmlTexts != null ? htmlTexts.get(which) : null;
   7912         return new ClipData.Item(text, htmlText, null, uri);
   7913     }
   7914 
   7915     /** @hide */
   7916     public boolean isDocument() {
   7917         return (mFlags & FLAG_ACTIVITY_NEW_DOCUMENT) == FLAG_ACTIVITY_NEW_DOCUMENT;
   7918     }
   7919 }
   7920