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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 org.xmlpull.v1.XmlPullParser;
     20 import org.xmlpull.v1.XmlPullParserException;
     21 
     22 import android.annotation.SdkConstant;
     23 import android.annotation.SdkConstant.SdkConstantType;
     24 import android.content.pm.ActivityInfo;
     25 import android.content.pm.PackageManager;
     26 import android.content.pm.ResolveInfo;
     27 import android.content.res.Resources;
     28 import android.content.res.TypedArray;
     29 import android.graphics.Rect;
     30 import android.net.Uri;
     31 import android.os.Bundle;
     32 import android.os.IBinder;
     33 import android.os.Parcel;
     34 import android.os.Parcelable;
     35 import android.util.AttributeSet;
     36 import android.util.Log;
     37 
     38 import com.android.internal.util.XmlUtils;
     39 
     40 import java.io.IOException;
     41 import java.io.Serializable;
     42 import java.net.URISyntaxException;
     43 import java.util.ArrayList;
     44 import java.util.HashSet;
     45 import java.util.Iterator;
     46 import java.util.Set;
     47 
     48 /**
     49  * An intent is an abstract description of an operation to be performed.  It
     50  * can be used with {@link Context#startActivity(Intent) startActivity} to
     51  * launch an {@link android.app.Activity},
     52  * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
     53  * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
     54  * and {@link android.content.Context#startService} or
     55  * {@link android.content.Context#bindService} to communicate with a
     56  * background {@link android.app.Service}.
     57  *
     58  * <p>An Intent provides a facility for performing late runtime binding between the code in
     59  * different applications. Its most significant use is in the launching of activities, where it
     60  * can be thought of as the glue between activities. It is basically a passive data structure
     61  * holding an abstract description of an action to be performed.</p>
     62  *
     63  * <div class="special reference">
     64  * <h3>Developer Guides</h3>
     65  * <p>For information about how to create and resolve intents, read the
     66  * <a href="{@docRoot}guide/topics/intents/intents-filters.html">Intents and Intent Filters</a>
     67  * developer guide.</p>
     68  * </div>
     69  *
     70  * <a name="IntentStructure"></a>
     71  * <h3>Intent Structure</h3>
     72  * <p>The primary pieces of information in an intent are:</p>
     73  *
     74  * <ul>
     75  *   <li> <p><b>action</b> -- The general action to be performed, such as
     76  *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
     77  *     etc.</p>
     78  *   </li>
     79  *   <li> <p><b>data</b> -- The data to operate on, such as a person record
     80  *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
     81  *   </li>
     82  * </ul>
     83  *
     84  *
     85  * <p>Some examples of action/data pairs are:</p>
     86  *
     87  * <ul>
     88  *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
     89  *     information about the person whose identifier is "1".</p>
     90  *   </li>
     91  *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
     92  *     the phone dialer with the person filled in.</p>
     93  *   </li>
     94  *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
     95  *     the phone dialer with the given number filled in.  Note how the
     96  *     VIEW action does what what is considered the most reasonable thing for
     97  *     a particular URI.</p>
     98  *   </li>
     99  *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
    100  *     the phone dialer with the given number filled in.</p>
    101  *   </li>
    102  *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
    103  *     information about the person whose identifier is "1".</p>
    104  *   </li>
    105  *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
    106  *     a list of people, which the user can browse through.  This example is a
    107  *     typical top-level entry into the Contacts application, showing you the
    108  *     list of people. Selecting a particular person to view would result in a
    109  *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
    110  *     being used to start an activity to display that person.</p>
    111  *   </li>
    112  * </ul>
    113  *
    114  * <p>In addition to these primary attributes, there are a number of secondary
    115  * attributes that you can also include with an intent:</p>
    116  *
    117  * <ul>
    118  *     <li> <p><b>category</b> -- Gives additional information about the action
    119  *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
    120  *         appear in the Launcher as a top-level application, while
    121  *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
    122  *         of alternative actions the user can perform on a piece of data.</p>
    123  *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
    124  *         intent data.  Normally the type is inferred from the data itself.
    125  *         By setting this attribute, you disable that evaluation and force
    126  *         an explicit type.</p>
    127  *     <li> <p><b>component</b> -- Specifies an explicit name of a component
    128  *         class to use for the intent.  Normally this is determined by looking
    129  *         at the other information in the intent (the action, data/type, and
    130  *         categories) and matching that with a component that can handle it.
    131  *         If this attribute is set then none of the evaluation is performed,
    132  *         and this component is used exactly as is.  By specifying this attribute,
    133  *         all of the other Intent attributes become optional.</p>
    134  *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
    135  *         This can be used to provide extended information to the component.
    136  *         For example, if we have a action to send an e-mail message, we could
    137  *         also include extra pieces of data here to supply a subject, body,
    138  *         etc.</p>
    139  * </ul>
    140  *
    141  * <p>Here are some examples of other operations you can specify as intents
    142  * using these additional parameters:</p>
    143  *
    144  * <ul>
    145  *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
    146  *     Launch the home screen.</p>
    147  *   </li>
    148  *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
    149  *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
    150  *     vnd.android.cursor.item/phone}</i></b>
    151  *     -- Display the list of people's phone numbers, allowing the user to
    152  *     browse through them and pick one and return it to the parent activity.</p>
    153  *   </li>
    154  *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
    155  *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
    156  *     -- Display all pickers for data that can be opened with
    157  *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
    158  *     allowing the user to pick one of them and then some data inside of it
    159  *     and returning the resulting URI to the caller.  This can be used,
    160  *     for example, in an e-mail application to allow the user to pick some
    161  *     data to include as an attachment.</p>
    162  *   </li>
    163  * </ul>
    164  *
    165  * <p>There are a variety of standard Intent action and category constants
    166  * defined in the Intent class, but applications can also define their own.
    167  * These strings use java style scoping, to ensure they are unique -- for
    168  * example, the standard {@link #ACTION_VIEW} is called
    169  * "android.intent.action.VIEW".</p>
    170  *
    171  * <p>Put together, the set of actions, data types, categories, and extra data
    172  * defines a language for the system allowing for the expression of phrases
    173  * such as "call john smith's cell".  As applications are added to the system,
    174  * they can extend this language by adding new actions, types, and categories, or
    175  * they can modify the behavior of existing phrases by supplying their own
    176  * activities that handle them.</p>
    177  *
    178  * <a name="IntentResolution"></a>
    179  * <h3>Intent Resolution</h3>
    180  *
    181  * <p>There are two primary forms of intents you will use.
    182  *
    183  * <ul>
    184  *     <li> <p><b>Explicit Intents</b> have specified a component (via
    185  *     {@link #setComponent} or {@link #setClass}), which provides the exact
    186  *     class to be run.  Often these will not include any other information,
    187  *     simply being a way for an application to launch various internal
    188  *     activities it has as the user interacts with the application.
    189  *
    190  *     <li> <p><b>Implicit Intents</b> have not specified a component;
    191  *     instead, they must include enough information for the system to
    192  *     determine which of the available components is best to run for that
    193  *     intent.
    194  * </ul>
    195  *
    196  * <p>When using implicit intents, given such an arbitrary intent we need to
    197  * know what to do with it. This is handled by the process of <em>Intent
    198  * resolution</em>, which maps an Intent to an {@link android.app.Activity},
    199  * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
    200  * more activities/receivers) that can handle it.</p>
    201  *
    202  * <p>The intent resolution mechanism basically revolves around matching an
    203  * Intent against all of the &lt;intent-filter&gt; descriptions in the
    204  * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
    205  * objects explicitly registered with {@link Context#registerReceiver}.)  More
    206  * details on this can be found in the documentation on the {@link
    207  * IntentFilter} class.</p>
    208  *
    209  * <p>There are three pieces of information in the Intent that are used for
    210  * resolution: the action, type, and category.  Using this information, a query
    211  * is done on the {@link PackageManager} for a component that can handle the
    212  * intent. The appropriate component is determined based on the intent
    213  * information supplied in the <code>AndroidManifest.xml</code> file as
    214  * follows:</p>
    215  *
    216  * <ul>
    217  *     <li> <p>The <b>action</b>, if given, must be listed by the component as
    218  *         one it handles.</p>
    219  *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
    220  *         already supplied in the Intent.  Like the action, if a type is
    221  *         included in the intent (either explicitly or implicitly in its
    222  *         data), then this must be listed by the component as one it handles.</p>
    223  *     <li> For data that is not a <code>content:</code> URI and where no explicit
    224  *         type is included in the Intent, instead the <b>scheme</b> of the
    225  *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
    226  *         considered. Again like the action, if we are matching a scheme it
    227  *         must be listed by the component as one it can handle.
    228  *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
    229  *         by the activity as categories it handles.  That is, if you include
    230  *         the categories {@link #CATEGORY_LAUNCHER} and
    231  *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
    232  *         with an intent that lists <em>both</em> of those categories.
    233  *         Activities will very often need to support the
    234  *         {@link #CATEGORY_DEFAULT} so that they can be found by
    235  *         {@link Context#startActivity Context.startActivity()}.</p>
    236  * </ul>
    237  *
    238  * <p>For example, consider the Note Pad sample application that
    239  * allows user to browse through a list of notes data and view details about
    240  * individual items.  Text in italics indicate places were you would replace a
    241  * name with one specific to your own package.</p>
    242  *
    243  * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
    244  *       package="<i>com.android.notepad</i>"&gt;
    245  *     &lt;application android:icon="@drawable/app_notes"
    246  *             android:label="@string/app_name"&gt;
    247  *
    248  *         &lt;provider class=".NotePadProvider"
    249  *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
    250  *
    251  *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
    252  *             &lt;intent-filter&gt;
    253  *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
    254  *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
    255  *             &lt;/intent-filter&gt;
    256  *             &lt;intent-filter&gt;
    257  *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
    258  *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
    259  *                 &lt;action android:name="android.intent.action.PICK" /&gt;
    260  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    261  *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    262  *             &lt;/intent-filter&gt;
    263  *             &lt;intent-filter&gt;
    264  *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
    265  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    266  *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    267  *             &lt;/intent-filter&gt;
    268  *         &lt;/activity&gt;
    269  *
    270  *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
    271  *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
    272  *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
    273  *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
    274  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    275  *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    276  *             &lt;/intent-filter&gt;
    277  *
    278  *             &lt;intent-filter&gt;
    279  *                 &lt;action android:name="android.intent.action.INSERT" /&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  *
    284  *         &lt;/activity&gt;
    285  *
    286  *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
    287  *                 android:theme="@android:style/Theme.Dialog"&gt;
    288  *             &lt;intent-filter android:label="@string/resolve_title"&gt;
    289  *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
    290  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    291  *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
    292  *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
    293  *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    294  *             &lt;/intent-filter&gt;
    295  *         &lt;/activity&gt;
    296  *
    297  *     &lt;/application&gt;
    298  * &lt;/manifest&gt;</pre>
    299  *
    300  * <p>The first activity,
    301  * <code>com.android.notepad.NotesList</code>, serves as our main
    302  * entry into the app.  It can do three things as described by its three intent
    303  * templates:
    304  * <ol>
    305  * <li><pre>
    306  * &lt;intent-filter&gt;
    307  *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
    308  *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
    309  * &lt;/intent-filter&gt;</pre>
    310  * <p>This provides a top-level entry into the NotePad application: the standard
    311  * MAIN action is a main entry point (not requiring any other information in
    312  * the Intent), and the LAUNCHER category says that this entry point should be
    313  * listed in the application launcher.</p>
    314  * <li><pre>
    315  * &lt;intent-filter&gt;
    316  *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
    317  *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
    318  *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
    319  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    320  *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    321  * &lt;/intent-filter&gt;</pre>
    322  * <p>This declares the things that the activity can do on a directory of
    323  * notes.  The type being supported is given with the &lt;type&gt; tag, where
    324  * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
    325  * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
    326  * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
    327  * The activity allows the user to view or edit the directory of data (via
    328  * the VIEW and EDIT actions), or to pick a particular note and return it
    329  * to the caller (via the PICK action).  Note also the DEFAULT category
    330  * supplied here: this is <em>required</em> for the
    331  * {@link Context#startActivity Context.startActivity} method to resolve your
    332  * activity when its component name is not explicitly specified.</p>
    333  * <li><pre>
    334  * &lt;intent-filter&gt;
    335  *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
    336  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    337  *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    338  * &lt;/intent-filter&gt;</pre>
    339  * <p>This filter describes the ability return to the caller a note selected by
    340  * the user without needing to know where it came from.  The data type
    341  * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
    342  * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
    343  * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
    344  * The GET_CONTENT action is similar to the PICK action, where the activity
    345  * will return to its caller a piece of data selected by the user.  Here,
    346  * however, the caller specifies the type of data they desire instead of
    347  * the type of data the user will be picking from.</p>
    348  * </ol>
    349  *
    350  * <p>Given these capabilities, the following intents will resolve to the
    351  * NotesList activity:</p>
    352  *
    353  * <ul>
    354  *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
    355  *         activities that can be used as top-level entry points into an
    356  *         application.</p>
    357  *     <li> <p><b>{ action=android.app.action.MAIN,
    358  *         category=android.app.category.LAUNCHER }</b> is the actual intent
    359  *         used by the Launcher to populate its top-level list.</p>
    360  *     <li> <p><b>{ action=android.intent.action.VIEW
    361  *          data=content://com.google.provider.NotePad/notes }</b>
    362  *         displays a list of all the notes under
    363  *         "content://com.google.provider.NotePad/notes", which
    364  *         the user can browse through and see the details on.</p>
    365  *     <li> <p><b>{ action=android.app.action.PICK
    366  *          data=content://com.google.provider.NotePad/notes }</b>
    367  *         provides a list of the notes under
    368  *         "content://com.google.provider.NotePad/notes", from which
    369  *         the user can pick a note whose data URL is returned back to the caller.</p>
    370  *     <li> <p><b>{ action=android.app.action.GET_CONTENT
    371  *          type=vnd.android.cursor.item/vnd.google.note }</b>
    372  *         is similar to the pick action, but allows the caller to specify the
    373  *         kind of data they want back so that the system can find the appropriate
    374  *         activity to pick something of that data type.</p>
    375  * </ul>
    376  *
    377  * <p>The second activity,
    378  * <code>com.android.notepad.NoteEditor</code>, shows the user a single
    379  * note entry and allows them to edit it.  It can do two things as described
    380  * by its two intent templates:
    381  * <ol>
    382  * <li><pre>
    383  * &lt;intent-filter android:label="@string/resolve_edit"&gt;
    384  *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
    385  *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
    386  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    387  *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    388  * &lt;/intent-filter&gt;</pre>
    389  * <p>The first, primary, purpose of this activity is to let the user interact
    390  * with a single note, as decribed by the MIME type
    391  * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
    392  * either VIEW a note or allow the user to EDIT it.  Again we support the
    393  * DEFAULT category to allow the activity to be launched without explicitly
    394  * specifying its component.</p>
    395  * <li><pre>
    396  * &lt;intent-filter&gt;
    397  *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
    398  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    399  *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    400  * &lt;/intent-filter&gt;</pre>
    401  * <p>The secondary use of this activity is to insert a new note entry into
    402  * an existing directory of notes.  This is used when the user creates a new
    403  * note: the INSERT action is executed on the directory of notes, causing
    404  * this activity to run and have the user create the new note data which
    405  * it then adds to the content provider.</p>
    406  * </ol>
    407  *
    408  * <p>Given these capabilities, the following intents will resolve to the
    409  * NoteEditor activity:</p>
    410  *
    411  * <ul>
    412  *     <li> <p><b>{ action=android.intent.action.VIEW
    413  *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
    414  *         shows the user the content of note <var>{ID}</var>.</p>
    415  *     <li> <p><b>{ action=android.app.action.EDIT
    416  *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
    417  *         allows the user to edit the content of note <var>{ID}</var>.</p>
    418  *     <li> <p><b>{ action=android.app.action.INSERT
    419  *          data=content://com.google.provider.NotePad/notes }</b>
    420  *         creates a new, empty note in the notes list at
    421  *         "content://com.google.provider.NotePad/notes"
    422  *         and allows the user to edit it.  If they keep their changes, the URI
    423  *         of the newly created note is returned to the caller.</p>
    424  * </ul>
    425  *
    426  * <p>The last activity,
    427  * <code>com.android.notepad.TitleEditor</code>, allows the user to
    428  * edit the title of a note.  This could be implemented as a class that the
    429  * application directly invokes (by explicitly setting its component in
    430  * the Intent), but here we show a way you can publish alternative
    431  * operations on existing data:</p>
    432  *
    433  * <pre>
    434  * &lt;intent-filter android:label="@string/resolve_title"&gt;
    435  *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
    436  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    437  *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
    438  *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
    439  *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    440  * &lt;/intent-filter&gt;</pre>
    441  *
    442  * <p>In the single intent template here, we
    443  * have created our own private action called
    444  * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
    445  * edit the title of a note.  It must be invoked on a specific note
    446  * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
    447  * view and edit actions, but here displays and edits the title contained
    448  * in the note data.
    449  *
    450  * <p>In addition to supporting the default category as usual, our title editor
    451  * also supports two other standard categories: ALTERNATIVE and
    452  * SELECTED_ALTERNATIVE.  Implementing
    453  * these categories allows others to find the special action it provides
    454  * without directly knowing about it, through the
    455  * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
    456  * more often to build dynamic menu items with
    457  * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
    458  * template here was also supply an explicit name for the template
    459  * (via <code>android:label="@string/resolve_title"</code>) to better control
    460  * what the user sees when presented with this activity as an alternative
    461  * action to the data they are viewing.
    462  *
    463  * <p>Given these capabilities, the following intent will resolve to the
    464  * TitleEditor activity:</p>
    465  *
    466  * <ul>
    467  *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
    468  *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
    469  *         displays and allows the user to edit the title associated
    470  *         with note <var>{ID}</var>.</p>
    471  * </ul>
    472  *
    473  * <h3>Standard Activity Actions</h3>
    474  *
    475  * <p>These are the current standard actions that Intent defines for launching
    476  * activities (usually through {@link Context#startActivity}.  The most
    477  * important, and by far most frequently used, are {@link #ACTION_MAIN} and
    478  * {@link #ACTION_EDIT}.
    479  *
    480  * <ul>
    481  *     <li> {@link #ACTION_MAIN}
    482  *     <li> {@link #ACTION_VIEW}
    483  *     <li> {@link #ACTION_ATTACH_DATA}
    484  *     <li> {@link #ACTION_EDIT}
    485  *     <li> {@link #ACTION_PICK}
    486  *     <li> {@link #ACTION_CHOOSER}
    487  *     <li> {@link #ACTION_GET_CONTENT}
    488  *     <li> {@link #ACTION_DIAL}
    489  *     <li> {@link #ACTION_CALL}
    490  *     <li> {@link #ACTION_SEND}
    491  *     <li> {@link #ACTION_SENDTO}
    492  *     <li> {@link #ACTION_ANSWER}
    493  *     <li> {@link #ACTION_INSERT}
    494  *     <li> {@link #ACTION_DELETE}
    495  *     <li> {@link #ACTION_RUN}
    496  *     <li> {@link #ACTION_SYNC}
    497  *     <li> {@link #ACTION_PICK_ACTIVITY}
    498  *     <li> {@link #ACTION_SEARCH}
    499  *     <li> {@link #ACTION_WEB_SEARCH}
    500  *     <li> {@link #ACTION_FACTORY_TEST}
    501  * </ul>
    502  *
    503  * <h3>Standard Broadcast Actions</h3>
    504  *
    505  * <p>These are the current standard actions that Intent defines for receiving
    506  * broadcasts (usually through {@link Context#registerReceiver} or a
    507  * &lt;receiver&gt; tag in a manifest).
    508  *
    509  * <ul>
    510  *     <li> {@link #ACTION_TIME_TICK}
    511  *     <li> {@link #ACTION_TIME_CHANGED}
    512  *     <li> {@link #ACTION_TIMEZONE_CHANGED}
    513  *     <li> {@link #ACTION_BOOT_COMPLETED}
    514  *     <li> {@link #ACTION_PACKAGE_ADDED}
    515  *     <li> {@link #ACTION_PACKAGE_CHANGED}
    516  *     <li> {@link #ACTION_PACKAGE_REMOVED}
    517  *     <li> {@link #ACTION_PACKAGE_RESTARTED}
    518  *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
    519  *     <li> {@link #ACTION_UID_REMOVED}
    520  *     <li> {@link #ACTION_BATTERY_CHANGED}
    521  *     <li> {@link #ACTION_POWER_CONNECTED}
    522  *     <li> {@link #ACTION_POWER_DISCONNECTED}
    523  *     <li> {@link #ACTION_SHUTDOWN}
    524  * </ul>
    525  *
    526  * <h3>Standard Categories</h3>
    527  *
    528  * <p>These are the current standard categories that can be used to further
    529  * clarify an Intent via {@link #addCategory}.
    530  *
    531  * <ul>
    532  *     <li> {@link #CATEGORY_DEFAULT}
    533  *     <li> {@link #CATEGORY_BROWSABLE}
    534  *     <li> {@link #CATEGORY_TAB}
    535  *     <li> {@link #CATEGORY_ALTERNATIVE}
    536  *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
    537  *     <li> {@link #CATEGORY_LAUNCHER}
    538  *     <li> {@link #CATEGORY_INFO}
    539  *     <li> {@link #CATEGORY_HOME}
    540  *     <li> {@link #CATEGORY_PREFERENCE}
    541  *     <li> {@link #CATEGORY_TEST}
    542  *     <li> {@link #CATEGORY_CAR_DOCK}
    543  *     <li> {@link #CATEGORY_DESK_DOCK}
    544  *     <li> {@link #CATEGORY_LE_DESK_DOCK}
    545  *     <li> {@link #CATEGORY_HE_DESK_DOCK}
    546  *     <li> {@link #CATEGORY_CAR_MODE}
    547  *     <li> {@link #CATEGORY_APP_MARKET}
    548  * </ul>
    549  *
    550  * <h3>Standard Extra Data</h3>
    551  *
    552  * <p>These are the current standard fields that can be used as extra data via
    553  * {@link #putExtra}.
    554  *
    555  * <ul>
    556  *     <li> {@link #EXTRA_ALARM_COUNT}
    557  *     <li> {@link #EXTRA_BCC}
    558  *     <li> {@link #EXTRA_CC}
    559  *     <li> {@link #EXTRA_CHANGED_COMPONENT_NAME}
    560  *     <li> {@link #EXTRA_DATA_REMOVED}
    561  *     <li> {@link #EXTRA_DOCK_STATE}
    562  *     <li> {@link #EXTRA_DOCK_STATE_HE_DESK}
    563  *     <li> {@link #EXTRA_DOCK_STATE_LE_DESK}
    564  *     <li> {@link #EXTRA_DOCK_STATE_CAR}
    565  *     <li> {@link #EXTRA_DOCK_STATE_DESK}
    566  *     <li> {@link #EXTRA_DOCK_STATE_UNDOCKED}
    567  *     <li> {@link #EXTRA_DONT_KILL_APP}
    568  *     <li> {@link #EXTRA_EMAIL}
    569  *     <li> {@link #EXTRA_INITIAL_INTENTS}
    570  *     <li> {@link #EXTRA_INTENT}
    571  *     <li> {@link #EXTRA_KEY_EVENT}
    572  *     <li> {@link #EXTRA_PHONE_NUMBER}
    573  *     <li> {@link #EXTRA_REMOTE_INTENT_TOKEN}
    574  *     <li> {@link #EXTRA_REPLACING}
    575  *     <li> {@link #EXTRA_SHORTCUT_ICON}
    576  *     <li> {@link #EXTRA_SHORTCUT_ICON_RESOURCE}
    577  *     <li> {@link #EXTRA_SHORTCUT_INTENT}
    578  *     <li> {@link #EXTRA_STREAM}
    579  *     <li> {@link #EXTRA_SHORTCUT_NAME}
    580  *     <li> {@link #EXTRA_SUBJECT}
    581  *     <li> {@link #EXTRA_TEMPLATE}
    582  *     <li> {@link #EXTRA_TEXT}
    583  *     <li> {@link #EXTRA_TITLE}
    584  *     <li> {@link #EXTRA_UID}
    585  * </ul>
    586  *
    587  * <h3>Flags</h3>
    588  *
    589  * <p>These are the possible flags that can be used in the Intent via
    590  * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
    591  * of all possible flags.
    592  */
    593 public class Intent implements Parcelable, Cloneable {
    594     // ---------------------------------------------------------------------
    595     // ---------------------------------------------------------------------
    596     // Standard intent activity actions (see action variable).
    597 
    598     /**
    599      *  Activity Action: Start as a main entry point, does not expect to
    600      *  receive data.
    601      *  <p>Input: nothing
    602      *  <p>Output: nothing
    603      */
    604     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    605     public static final String ACTION_MAIN = "android.intent.action.MAIN";
    606 
    607     /**
    608      * Activity Action: Display the data to the user.  This is the most common
    609      * action performed on data -- it is the generic action you can use on
    610      * a piece of data to get the most reasonable thing to occur.  For example,
    611      * when used on a contacts entry it will view the entry; when used on a
    612      * mailto: URI it will bring up a compose window filled with the information
    613      * supplied by the URI; when used with a tel: URI it will invoke the
    614      * dialer.
    615      * <p>Input: {@link #getData} is URI from which to retrieve data.
    616      * <p>Output: nothing.
    617      */
    618     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    619     public static final String ACTION_VIEW = "android.intent.action.VIEW";
    620 
    621     /**
    622      * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
    623      * performed on a piece of data.
    624      */
    625     public static final String ACTION_DEFAULT = ACTION_VIEW;
    626 
    627     /**
    628      * Used to indicate that some piece of data should be attached to some other
    629      * place.  For example, image data could be attached to a contact.  It is up
    630      * to the recipient to decide where the data should be attached; the intent
    631      * does not specify the ultimate destination.
    632      * <p>Input: {@link #getData} is URI of data to be attached.
    633      * <p>Output: nothing.
    634      */
    635     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    636     public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
    637 
    638     /**
    639      * Activity Action: Provide explicit editable access to the given data.
    640      * <p>Input: {@link #getData} is URI of data to be edited.
    641      * <p>Output: nothing.
    642      */
    643     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    644     public static final String ACTION_EDIT = "android.intent.action.EDIT";
    645 
    646     /**
    647      * Activity Action: Pick an existing item, or insert a new item, and then edit it.
    648      * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
    649      * The extras can contain type specific data to pass through to the editing/creating
    650      * activity.
    651      * <p>Output: The URI of the item that was picked.  This must be a content:
    652      * URI so that any receiver can access it.
    653      */
    654     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    655     public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
    656 
    657     /**
    658      * Activity Action: Pick an item from the data, returning what was selected.
    659      * <p>Input: {@link #getData} is URI containing a directory of data
    660      * (vnd.android.cursor.dir/*) from which to pick an item.
    661      * <p>Output: The URI of the item that was picked.
    662      */
    663     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    664     public static final String ACTION_PICK = "android.intent.action.PICK";
    665 
    666     /**
    667      * Activity Action: Creates a shortcut.
    668      * <p>Input: Nothing.</p>
    669      * <p>Output: An Intent representing the shortcut. The intent must contain three
    670      * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
    671      * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
    672      * (value: ShortcutIconResource).</p>
    673      *
    674      * @see #EXTRA_SHORTCUT_INTENT
    675      * @see #EXTRA_SHORTCUT_NAME
    676      * @see #EXTRA_SHORTCUT_ICON
    677      * @see #EXTRA_SHORTCUT_ICON_RESOURCE
    678      * @see android.content.Intent.ShortcutIconResource
    679      */
    680     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    681     public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
    682 
    683     /**
    684      * The name of the extra used to define the Intent of a shortcut.
    685      *
    686      * @see #ACTION_CREATE_SHORTCUT
    687      */
    688     public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
    689     /**
    690      * The name of the extra used to define the name of a shortcut.
    691      *
    692      * @see #ACTION_CREATE_SHORTCUT
    693      */
    694     public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
    695     /**
    696      * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
    697      *
    698      * @see #ACTION_CREATE_SHORTCUT
    699      */
    700     public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
    701     /**
    702      * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
    703      *
    704      * @see #ACTION_CREATE_SHORTCUT
    705      * @see android.content.Intent.ShortcutIconResource
    706      */
    707     public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
    708             "android.intent.extra.shortcut.ICON_RESOURCE";
    709 
    710     /**
    711      * Represents a shortcut/live folder icon resource.
    712      *
    713      * @see Intent#ACTION_CREATE_SHORTCUT
    714      * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
    715      * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
    716      * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
    717      */
    718     public static class ShortcutIconResource implements Parcelable {
    719         /**
    720          * The package name of the application containing the icon.
    721          */
    722         public String packageName;
    723 
    724         /**
    725          * The resource name of the icon, including package, name and type.
    726          */
    727         public String resourceName;
    728 
    729         /**
    730          * Creates a new ShortcutIconResource for the specified context and resource
    731          * identifier.
    732          *
    733          * @param context The context of the application.
    734          * @param resourceId The resource idenfitier for the icon.
    735          * @return A new ShortcutIconResource with the specified's context package name
    736          *         and icon resource idenfitier.
    737          */
    738         public static ShortcutIconResource fromContext(Context context, int resourceId) {
    739             ShortcutIconResource icon = new ShortcutIconResource();
    740             icon.packageName = context.getPackageName();
    741             icon.resourceName = context.getResources().getResourceName(resourceId);
    742             return icon;
    743         }
    744 
    745         /**
    746          * Used to read a ShortcutIconResource from a Parcel.
    747          */
    748         public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
    749             new Parcelable.Creator<ShortcutIconResource>() {
    750 
    751                 public ShortcutIconResource createFromParcel(Parcel source) {
    752                     ShortcutIconResource icon = new ShortcutIconResource();
    753                     icon.packageName = source.readString();
    754                     icon.resourceName = source.readString();
    755                     return icon;
    756                 }
    757 
    758                 public ShortcutIconResource[] newArray(int size) {
    759                     return new ShortcutIconResource[size];
    760                 }
    761             };
    762 
    763         /**
    764          * No special parcel contents.
    765          */
    766         public int describeContents() {
    767             return 0;
    768         }
    769 
    770         public void writeToParcel(Parcel dest, int flags) {
    771             dest.writeString(packageName);
    772             dest.writeString(resourceName);
    773         }
    774 
    775         @Override
    776         public String toString() {
    777             return resourceName;
    778         }
    779     }
    780 
    781     /**
    782      * Activity Action: Display an activity chooser, allowing the user to pick
    783      * what they want to before proceeding.  This can be used as an alternative
    784      * to the standard activity picker that is displayed by the system when
    785      * you try to start an activity with multiple possible matches, with these
    786      * differences in behavior:
    787      * <ul>
    788      * <li>You can specify the title that will appear in the activity chooser.
    789      * <li>The user does not have the option to make one of the matching
    790      * activities a preferred activity, and all possible activities will
    791      * always be shown even if one of them is currently marked as the
    792      * preferred activity.
    793      * </ul>
    794      * <p>
    795      * This action should be used when the user will naturally expect to
    796      * select an activity in order to proceed.  An example if when not to use
    797      * it is when the user clicks on a "mailto:" link.  They would naturally
    798      * expect to go directly to their mail app, so startActivity() should be
    799      * called directly: it will
    800      * either launch the current preferred app, or put up a dialog allowing the
    801      * user to pick an app to use and optionally marking that as preferred.
    802      * <p>
    803      * In contrast, if the user is selecting a menu item to send a picture
    804      * they are viewing to someone else, there are many different things they
    805      * may want to do at this point: send it through e-mail, upload it to a
    806      * web service, etc.  In this case the CHOOSER action should be used, to
    807      * always present to the user a list of the things they can do, with a
    808      * nice title given by the caller such as "Send this photo with:".
    809      * <p>
    810      * As a convenience, an Intent of this form can be created with the
    811      * {@link #createChooser} function.
    812      * <p>Input: No data should be specified.  get*Extra must have
    813      * a {@link #EXTRA_INTENT} field containing the Intent being executed,
    814      * and can optionally have a {@link #EXTRA_TITLE} field containing the
    815      * title text to display in the chooser.
    816      * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
    817      */
    818     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    819     public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
    820 
    821     /**
    822      * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
    823      *
    824      * @param target The Intent that the user will be selecting an activity
    825      * to perform.
    826      * @param title Optional title that will be displayed in the chooser.
    827      * @return Return a new Intent object that you can hand to
    828      * {@link Context#startActivity(Intent) Context.startActivity()} and
    829      * related methods.
    830      */
    831     public static Intent createChooser(Intent target, CharSequence title) {
    832         Intent intent = new Intent(ACTION_CHOOSER);
    833         intent.putExtra(EXTRA_INTENT, target);
    834         if (title != null) {
    835             intent.putExtra(EXTRA_TITLE, title);
    836         }
    837         return intent;
    838     }
    839     /**
    840      * Activity Action: Allow the user to select a particular kind of data and
    841      * return it.  This is different than {@link #ACTION_PICK} in that here we
    842      * just say what kind of data is desired, not a URI of existing data from
    843      * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
    844      * create the data as it runs (for example taking a picture or recording a
    845      * sound), let them browser over the web and download the desired data,
    846      * etc.
    847      * <p>
    848      * There are two main ways to use this action: if you want an specific kind
    849      * of data, such as a person contact, you set the MIME type to the kind of
    850      * data you want and launch it with {@link Context#startActivity(Intent)}.
    851      * The system will then launch the best application to select that kind
    852      * of data for you.
    853      * <p>
    854      * You may also be interested in any of a set of types of content the user
    855      * can pick.  For example, an e-mail application that wants to allow the
    856      * user to add an attachment to an e-mail message can use this action to
    857      * bring up a list of all of the types of content the user can attach.
    858      * <p>
    859      * In this case, you should wrap the GET_CONTENT intent with a chooser
    860      * (through {@link #createChooser}), which will give the proper interface
    861      * for the user to pick how to send your data and allow you to specify
    862      * a prompt indicating what they are doing.  You will usually specify a
    863      * broad MIME type (such as image/* or {@literal *}/*), resulting in a
    864      * broad range of content types the user can select from.
    865      * <p>
    866      * When using such a broad GET_CONTENT action, it is often desireable to
    867      * only pick from data that can be represented as a stream.  This is
    868      * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
    869      * <p>
    870      * Callers can optionally specify {@link #EXTRA_LOCAL_ONLY} to request that
    871      * the launched content chooser only return results representing data that
    872      * is locally available on the device.  For example, if this extra is set
    873      * to true then an image picker should not show any pictures that are available
    874      * from a remote server but not already on the local device (thus requiring
    875      * they be downloaded when opened).
    876      * <p>
    877      * Input: {@link #getType} is the desired MIME type to retrieve.  Note
    878      * that no URI is supplied in the intent, as there are no constraints on
    879      * where the returned data originally comes from.  You may also include the
    880      * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
    881      * opened as a stream.  You may use {@link #EXTRA_LOCAL_ONLY} to limit content
    882      * selection to local data.
    883      * <p>
    884      * Output: The URI of the item that was picked.  This must be a content:
    885      * URI so that any receiver can access it.
    886      */
    887     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    888     public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
    889     /**
    890      * Activity Action: Dial a number as specified by the data.  This shows a
    891      * UI with the number being dialed, allowing the user to explicitly
    892      * initiate the call.
    893      * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
    894      * is URI of a phone number to be dialed or a tel: URI of an explicit phone
    895      * number.
    896      * <p>Output: nothing.
    897      */
    898     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    899     public static final String ACTION_DIAL = "android.intent.action.DIAL";
    900     /**
    901      * Activity Action: Perform a call to someone specified by the data.
    902      * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
    903      * is URI of a phone number to be dialed or a tel: URI of an explicit phone
    904      * number.
    905      * <p>Output: nothing.
    906      *
    907      * <p>Note: there will be restrictions on which applications can initiate a
    908      * call; most applications should use the {@link #ACTION_DIAL}.
    909      * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
    910      * numbers.  Applications can <strong>dial</strong> emergency numbers using
    911      * {@link #ACTION_DIAL}, however.
    912      */
    913     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    914     public static final String ACTION_CALL = "android.intent.action.CALL";
    915     /**
    916      * Activity Action: Perform a call to an emergency number specified by the
    917      * data.
    918      * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
    919      * tel: URI of an explicit phone number.
    920      * <p>Output: nothing.
    921      * @hide
    922      */
    923     public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
    924     /**
    925      * Activity action: Perform a call to any number (emergency or not)
    926      * specified by the data.
    927      * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
    928      * tel: URI of an explicit phone number.
    929      * <p>Output: nothing.
    930      * @hide
    931      */
    932     public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
    933     /**
    934      * Activity Action: Send a message to someone specified by the data.
    935      * <p>Input: {@link #getData} is URI describing the target.
    936      * <p>Output: nothing.
    937      */
    938     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    939     public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
    940     /**
    941      * Activity Action: Deliver some data to someone else.  Who the data is
    942      * being delivered to is not specified; it is up to the receiver of this
    943      * action to ask the user where the data should be sent.
    944      * <p>
    945      * When launching a SEND intent, you should usually wrap it in a chooser
    946      * (through {@link #createChooser}), which will give the proper interface
    947      * for the user to pick how to send your data and allow you to specify
    948      * a prompt indicating what they are doing.
    949      * <p>
    950      * Input: {@link #getType} is the MIME type of the data being sent.
    951      * get*Extra can have either a {@link #EXTRA_TEXT}
    952      * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
    953      * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
    954      * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
    955      * if the MIME type is unknown (this will only allow senders that can
    956      * handle generic data streams).
    957      * <p>
    958      * Optional standard extras, which may be interpreted by some recipients as
    959      * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
    960      * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
    961      * <p>
    962      * Output: nothing.
    963      */
    964     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    965     public static final String ACTION_SEND = "android.intent.action.SEND";
    966     /**
    967      * Activity Action: Deliver multiple data to someone else.
    968      * <p>
    969      * Like ACTION_SEND, except the data is multiple.
    970      * <p>
    971      * Input: {@link #getType} is the MIME type of the data being sent.
    972      * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
    973      * #EXTRA_STREAM} field, containing the data to be sent.
    974      * <p>
    975      * Multiple types are supported, and receivers should handle mixed types
    976      * whenever possible. The right way for the receiver to check them is to
    977      * use the content resolver on each URI. The intent sender should try to
    978      * put the most concrete mime type in the intent type, but it can fall
    979      * back to {@literal <type>/*} or {@literal *}/* as needed.
    980      * <p>
    981      * e.g. if you are sending image/jpg and image/jpg, the intent's type can
    982      * be image/jpg, but if you are sending image/jpg and image/png, then the
    983      * intent's type should be image/*.
    984      * <p>
    985      * Optional standard extras, which may be interpreted by some recipients as
    986      * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
    987      * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
    988      * <p>
    989      * Output: nothing.
    990      */
    991     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    992     public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
    993     /**
    994      * Activity Action: Handle an incoming phone call.
    995      * <p>Input: nothing.
    996      * <p>Output: nothing.
    997      */
    998     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    999     public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
   1000     /**
   1001      * Activity Action: Insert an empty item into the given container.
   1002      * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
   1003      * in which to place the data.
   1004      * <p>Output: URI of the new data that was created.
   1005      */
   1006     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1007     public static final String ACTION_INSERT = "android.intent.action.INSERT";
   1008     /**
   1009      * Activity Action: Create a new item in the given container, initializing it
   1010      * from the current contents of the clipboard.
   1011      * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
   1012      * in which to place the data.
   1013      * <p>Output: URI of the new data that was created.
   1014      */
   1015     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1016     public static final String ACTION_PASTE = "android.intent.action.PASTE";
   1017     /**
   1018      * Activity Action: Delete the given data from its container.
   1019      * <p>Input: {@link #getData} is URI of data to be deleted.
   1020      * <p>Output: nothing.
   1021      */
   1022     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1023     public static final String ACTION_DELETE = "android.intent.action.DELETE";
   1024     /**
   1025      * Activity Action: Run the data, whatever that means.
   1026      * <p>Input: ?  (Note: this is currently specific to the test harness.)
   1027      * <p>Output: nothing.
   1028      */
   1029     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1030     public static final String ACTION_RUN = "android.intent.action.RUN";
   1031     /**
   1032      * Activity Action: Perform a data synchronization.
   1033      * <p>Input: ?
   1034      * <p>Output: ?
   1035      */
   1036     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1037     public static final String ACTION_SYNC = "android.intent.action.SYNC";
   1038     /**
   1039      * Activity Action: Pick an activity given an intent, returning the class
   1040      * selected.
   1041      * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
   1042      * used with {@link PackageManager#queryIntentActivities} to determine the
   1043      * set of activities from which to pick.
   1044      * <p>Output: Class name of the activity that was selected.
   1045      */
   1046     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1047     public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
   1048     /**
   1049      * Activity Action: Perform a search.
   1050      * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
   1051      * is the text to search for.  If empty, simply
   1052      * enter your search results Activity with the search UI activated.
   1053      * <p>Output: nothing.
   1054      */
   1055     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1056     public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
   1057     /**
   1058      * Activity Action: Start the platform-defined tutorial
   1059      * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
   1060      * is the text to search for.  If empty, simply
   1061      * enter your search results Activity with the search UI activated.
   1062      * <p>Output: nothing.
   1063      */
   1064     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1065     public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
   1066     /**
   1067      * Activity Action: Perform a web search.
   1068      * <p>
   1069      * Input: {@link android.app.SearchManager#QUERY
   1070      * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
   1071      * a url starts with http or https, the site will be opened. If it is plain
   1072      * text, Google search will be applied.
   1073      * <p>
   1074      * Output: nothing.
   1075      */
   1076     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1077     public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
   1078     /**
   1079      * Activity Action: List all available applications
   1080      * <p>Input: Nothing.
   1081      * <p>Output: nothing.
   1082      */
   1083     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1084     public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
   1085     /**
   1086      * Activity Action: Show settings for choosing wallpaper
   1087      * <p>Input: Nothing.
   1088      * <p>Output: Nothing.
   1089      */
   1090     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1091     public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
   1092 
   1093     /**
   1094      * Activity Action: Show activity for reporting a bug.
   1095      * <p>Input: Nothing.
   1096      * <p>Output: Nothing.
   1097      */
   1098     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1099     public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
   1100 
   1101     /**
   1102      *  Activity Action: Main entry point for factory tests.  Only used when
   1103      *  the device is booting in factory test node.  The implementing package
   1104      *  must be installed in the system image.
   1105      *  <p>Input: nothing
   1106      *  <p>Output: nothing
   1107      */
   1108     public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
   1109 
   1110     /**
   1111      * Activity Action: The user pressed the "call" button to go to the dialer
   1112      * or other appropriate UI for placing a call.
   1113      * <p>Input: Nothing.
   1114      * <p>Output: Nothing.
   1115      */
   1116     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1117     public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
   1118 
   1119     /**
   1120      * Activity Action: Start Voice Command.
   1121      * <p>Input: Nothing.
   1122      * <p>Output: Nothing.
   1123      */
   1124     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1125     public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
   1126 
   1127     /**
   1128      * Activity Action: Start action associated with long pressing on the
   1129      * search key.
   1130      * <p>Input: Nothing.
   1131      * <p>Output: Nothing.
   1132      */
   1133     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1134     public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
   1135 
   1136     /**
   1137      * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
   1138      * This intent is delivered to the package which installed the application, usually
   1139      * the Market.
   1140      * <p>Input: No data is specified. The bug report is passed in using
   1141      * an {@link #EXTRA_BUG_REPORT} field.
   1142      * <p>Output: Nothing.
   1143      *
   1144      * @see #EXTRA_BUG_REPORT
   1145      */
   1146     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1147     public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
   1148 
   1149     /**
   1150      * Activity Action: Show power usage information to the user.
   1151      * <p>Input: Nothing.
   1152      * <p>Output: Nothing.
   1153      */
   1154     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1155     public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
   1156 
   1157     /**
   1158      * Activity Action: Setup wizard to launch after a platform update.  This
   1159      * activity should have a string meta-data field associated with it,
   1160      * {@link #METADATA_SETUP_VERSION}, which defines the current version of
   1161      * the platform for setup.  The activity will be launched only if
   1162      * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
   1163      * same value.
   1164      * <p>Input: Nothing.
   1165      * <p>Output: Nothing.
   1166      * @hide
   1167      */
   1168     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1169     public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
   1170 
   1171     /**
   1172      * Activity Action: Show settings for managing network data usage of a
   1173      * specific application. Applications should define an activity that offers
   1174      * options to control data usage.
   1175      */
   1176     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1177     public static final String ACTION_MANAGE_NETWORK_USAGE =
   1178             "android.intent.action.MANAGE_NETWORK_USAGE";
   1179 
   1180     /**
   1181      * Activity Action: Launch application installer.
   1182      * <p>
   1183      * Input: The data must be a content: or file: URI at which the application
   1184      * can be retrieved.  You can optionally supply
   1185      * {@link #EXTRA_INSTALLER_PACKAGE_NAME}, {@link #EXTRA_NOT_UNKNOWN_SOURCE},
   1186      * {@link #EXTRA_ALLOW_REPLACE}, and {@link #EXTRA_RETURN_RESULT}.
   1187      * <p>
   1188      * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
   1189      * succeeded.
   1190      *
   1191      * @see #EXTRA_INSTALLER_PACKAGE_NAME
   1192      * @see #EXTRA_NOT_UNKNOWN_SOURCE
   1193      * @see #EXTRA_RETURN_RESULT
   1194      */
   1195     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1196     public static final String ACTION_INSTALL_PACKAGE = "android.intent.action.INSTALL_PACKAGE";
   1197 
   1198     /**
   1199      * Used as a string extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
   1200      * package.  Specifies the installer package name; this package will receive the
   1201      * {@link #ACTION_APP_ERROR} intent.
   1202      */
   1203     public static final String EXTRA_INSTALLER_PACKAGE_NAME
   1204             = "android.intent.extra.INSTALLER_PACKAGE_NAME";
   1205 
   1206     /**
   1207      * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
   1208      * package.  Specifies that the application being installed should not be
   1209      * treated as coming from an unknown source, but as coming from the app
   1210      * invoking the Intent.  For this to work you must start the installer with
   1211      * startActivityForResult().
   1212      */
   1213     public static final String EXTRA_NOT_UNKNOWN_SOURCE
   1214             = "android.intent.extra.NOT_UNKNOWN_SOURCE";
   1215 
   1216     /**
   1217      * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
   1218      * package.  Tells the installer UI to skip the confirmation with the user
   1219      * if the .apk is replacing an existing one.
   1220      */
   1221     public static final String EXTRA_ALLOW_REPLACE
   1222             = "android.intent.extra.ALLOW_REPLACE";
   1223 
   1224     /**
   1225      * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} or
   1226      * {@link #ACTION_UNINSTALL_PACKAGE}.  Specifies that the installer UI should
   1227      * return to the application the result code of the install/uninstall.  The returned result
   1228      * code will be {@link android.app.Activity#RESULT_OK} on success or
   1229      * {@link android.app.Activity#RESULT_FIRST_USER} on failure.
   1230      */
   1231     public static final String EXTRA_RETURN_RESULT
   1232             = "android.intent.extra.RETURN_RESULT";
   1233 
   1234     /**
   1235      * Package manager install result code.  @hide because result codes are not
   1236      * yet ready to be exposed.
   1237      */
   1238     public static final String EXTRA_INSTALL_RESULT
   1239             = "android.intent.extra.INSTALL_RESULT";
   1240 
   1241     /**
   1242      * Activity Action: Launch application uninstaller.
   1243      * <p>
   1244      * Input: The data must be a package: URI whose scheme specific part is
   1245      * the package name of the current installed package to be uninstalled.
   1246      * You can optionally supply {@link #EXTRA_RETURN_RESULT}.
   1247      * <p>
   1248      * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
   1249      * succeeded.
   1250      */
   1251     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1252     public static final String ACTION_UNINSTALL_PACKAGE = "android.intent.action.UNINSTALL_PACKAGE";
   1253 
   1254     /**
   1255      * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
   1256      * describing the last run version of the platform that was setup.
   1257      * @hide
   1258      */
   1259     public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
   1260 
   1261     // ---------------------------------------------------------------------
   1262     // ---------------------------------------------------------------------
   1263     // Standard intent broadcast actions (see action variable).
   1264 
   1265     /**
   1266      * Broadcast Action: Sent after the screen turns off.
   1267      *
   1268      * <p class="note">This is a protected intent that can only be sent
   1269      * by the system.
   1270      */
   1271     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1272     public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
   1273     /**
   1274      * Broadcast Action: Sent after the screen turns on.
   1275      *
   1276      * <p class="note">This is a protected intent that can only be sent
   1277      * by the system.
   1278      */
   1279     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1280     public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
   1281 
   1282     /**
   1283      * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
   1284      * keyguard is gone).
   1285      *
   1286      * <p class="note">This is a protected intent that can only be sent
   1287      * by the system.
   1288      */
   1289     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1290     public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
   1291 
   1292     /**
   1293      * Broadcast Action: The current time has changed.  Sent every
   1294      * minute.  You can <em>not</em> receive this through components declared
   1295      * in manifests, only by exlicitly registering for it with
   1296      * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   1297      * Context.registerReceiver()}.
   1298      *
   1299      * <p class="note">This is a protected intent that can only be sent
   1300      * by the system.
   1301      */
   1302     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1303     public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
   1304     /**
   1305      * Broadcast Action: The time was set.
   1306      */
   1307     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1308     public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
   1309     /**
   1310      * Broadcast Action: The date has changed.
   1311      */
   1312     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1313     public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
   1314     /**
   1315      * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
   1316      * <ul>
   1317      *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
   1318      * </ul>
   1319      *
   1320      * <p class="note">This is a protected intent that can only be sent
   1321      * by the system.
   1322      */
   1323     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1324     public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
   1325     /**
   1326      * Clear DNS Cache Action: This is broadcast when networks have changed and old
   1327      * DNS entries should be tossed.
   1328      * @hide
   1329      */
   1330     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1331     public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
   1332     /**
   1333      * Alarm Changed Action: This is broadcast when the AlarmClock
   1334      * application's alarm is set or unset.  It is used by the
   1335      * AlarmClock application and the StatusBar service.
   1336      * @hide
   1337      */
   1338     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1339     public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
   1340     /**
   1341      * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
   1342      * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
   1343      * @hide
   1344      */
   1345     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1346     public static final String ACTION_SYNC_STATE_CHANGED
   1347             = "android.intent.action.SYNC_STATE_CHANGED";
   1348     /**
   1349      * Broadcast Action: This is broadcast once, after the system has finished
   1350      * booting.  It can be used to perform application-specific initialization,
   1351      * such as installing alarms.  You must hold the
   1352      * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
   1353      * in order to receive this broadcast.
   1354      *
   1355      * <p class="note">This is a protected intent that can only be sent
   1356      * by the system.
   1357      */
   1358     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1359     public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
   1360     /**
   1361      * Broadcast Action: This is broadcast when a user action should request a
   1362      * temporary system dialog to dismiss.  Some examples of temporary system
   1363      * dialogs are the notification window-shade and the recent tasks dialog.
   1364      */
   1365     public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
   1366     /**
   1367      * Broadcast Action: Trigger the download and eventual installation
   1368      * of a package.
   1369      * <p>Input: {@link #getData} is the URI of the package file to download.
   1370      *
   1371      * <p class="note">This is a protected intent that can only be sent
   1372      * by the system.
   1373      *
   1374      * @deprecated This constant has never been used.
   1375      */
   1376     @Deprecated
   1377     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1378     public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
   1379     /**
   1380      * Broadcast Action: A new application package has been installed on the
   1381      * device. The data contains the name of the package.  Note that the
   1382      * newly installed package does <em>not</em> receive this broadcast.
   1383      * <p>My include the following extras:
   1384      * <ul>
   1385      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
   1386      * <li> {@link #EXTRA_REPLACING} is set to true if this is following
   1387      * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
   1388      * </ul>
   1389      *
   1390      * <p class="note">This is a protected intent that can only be sent
   1391      * by the system.
   1392      */
   1393     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1394     public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
   1395     /**
   1396      * Broadcast Action: A new version of an application package has been
   1397      * installed, replacing an existing version that was previously installed.
   1398      * The data contains the name of the package.
   1399      * <p>My include the following extras:
   1400      * <ul>
   1401      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
   1402      * </ul>
   1403      *
   1404      * <p class="note">This is a protected intent that can only be sent
   1405      * by the system.
   1406      */
   1407     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1408     public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
   1409     /**
   1410      * Broadcast Action: A new version of your application has been installed
   1411      * over an existing one.  This is only sent to the application that was
   1412      * replaced.  It does not contain any additional data; to receive it, just
   1413      * use an intent filter for this action.
   1414      *
   1415      * <p class="note">This is a protected intent that can only be sent
   1416      * by the system.
   1417      */
   1418     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1419     public static final String ACTION_MY_PACKAGE_REPLACED = "android.intent.action.MY_PACKAGE_REPLACED";
   1420     /**
   1421      * Broadcast Action: An existing application package has been removed from
   1422      * the device.  The data contains the name of the package.  The package
   1423      * that is being installed does <em>not</em> receive this Intent.
   1424      * <ul>
   1425      * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
   1426      * to the package.
   1427      * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
   1428      * application -- data and code -- is being removed.
   1429      * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
   1430      * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
   1431      * </ul>
   1432      *
   1433      * <p class="note">This is a protected intent that can only be sent
   1434      * by the system.
   1435      */
   1436     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1437     public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
   1438     /**
   1439      * Broadcast Action: An existing application package has been completely
   1440      * removed from the device.  The data contains the name of the package.
   1441      * This is like {@link #ACTION_PACKAGE_REMOVED}, but only set when
   1442      * {@link #EXTRA_DATA_REMOVED} is true and
   1443      * {@link #EXTRA_REPLACING} is false of that broadcast.
   1444      *
   1445      * <ul>
   1446      * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
   1447      * to the package.
   1448      * </ul>
   1449      *
   1450      * <p class="note">This is a protected intent that can only be sent
   1451      * by the system.
   1452      */
   1453     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1454     public static final String ACTION_PACKAGE_FULLY_REMOVED
   1455             = "android.intent.action.PACKAGE_FULLY_REMOVED";
   1456     /**
   1457      * Broadcast Action: An existing application package has been changed (e.g.
   1458      * a component has been enabled or disabled).  The data contains the name of
   1459      * the package.
   1460      * <ul>
   1461      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1462      * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
   1463      * of the changed components.
   1464      * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
   1465      * default action of restarting the application.
   1466      * </ul>
   1467      *
   1468      * <p class="note">This is a protected intent that can only be sent
   1469      * by the system.
   1470      */
   1471     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1472     public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
   1473     /**
   1474      * @hide
   1475      * Broadcast Action: Ask system services if there is any reason to
   1476      * restart the given package.  The data contains the name of the
   1477      * package.
   1478      * <ul>
   1479      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1480      * <li> {@link #EXTRA_PACKAGES} String array of all packages to check.
   1481      * </ul>
   1482      *
   1483      * <p class="note">This is a protected intent that can only be sent
   1484      * by the system.
   1485      */
   1486     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1487     public static final String ACTION_QUERY_PACKAGE_RESTART = "android.intent.action.QUERY_PACKAGE_RESTART";
   1488     /**
   1489      * Broadcast Action: The user has restarted a package, and all of its
   1490      * processes have been killed.  All runtime state
   1491      * associated with it (processes, alarms, notifications, etc) should
   1492      * be removed.  Note that the restarted package does <em>not</em>
   1493      * receive this broadcast.
   1494      * The data contains the name of the package.
   1495      * <ul>
   1496      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1497      * </ul>
   1498      *
   1499      * <p class="note">This is a protected intent that can only be sent
   1500      * by the system.
   1501      */
   1502     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1503     public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
   1504     /**
   1505      * Broadcast Action: The user has cleared the data of a package.  This should
   1506      * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
   1507      * its persistent data is erased and this broadcast sent.
   1508      * Note that the cleared package does <em>not</em>
   1509      * receive this broadcast. The data contains the name of the package.
   1510      * <ul>
   1511      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1512      * </ul>
   1513      *
   1514      * <p class="note">This is a protected intent that can only be sent
   1515      * by the system.
   1516      */
   1517     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1518     public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
   1519     /**
   1520      * Broadcast Action: A user ID has been removed from the system.  The user
   1521      * ID number is stored in the extra data under {@link #EXTRA_UID}.
   1522      *
   1523      * <p class="note">This is a protected intent that can only be sent
   1524      * by the system.
   1525      */
   1526     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1527     public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
   1528 
   1529     /**
   1530      * Broadcast Action: Sent to the installer package of an application
   1531      * when that application is first launched (that is the first time it
   1532      * is moved out of the stopped state).  The data contains the name of the package.
   1533      *
   1534      * <p class="note">This is a protected intent that can only be sent
   1535      * by the system.
   1536      */
   1537     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1538     public static final String ACTION_PACKAGE_FIRST_LAUNCH = "android.intent.action.PACKAGE_FIRST_LAUNCH";
   1539 
   1540     /**
   1541      * Broadcast Action: Sent to the system package verifier when a package
   1542      * needs to be verified. The data contains the package URI.
   1543      * <p class="note">
   1544      * This is a protected intent that can only be sent by the system.
   1545      * </p>
   1546      */
   1547     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1548     public static final String ACTION_PACKAGE_NEEDS_VERIFICATION = "android.intent.action.PACKAGE_NEEDS_VERIFICATION";
   1549 
   1550     /**
   1551      * Broadcast Action: Resources for a set of packages (which were
   1552      * previously unavailable) are currently
   1553      * available since the media on which they exist is available.
   1554      * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
   1555      * list of packages whose availability changed.
   1556      * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
   1557      * list of uids of packages whose availability changed.
   1558      * Note that the
   1559      * packages in this list do <em>not</em> receive this broadcast.
   1560      * The specified set of packages are now available on the system.
   1561      * <p>Includes the following extras:
   1562      * <ul>
   1563      * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
   1564      * whose resources(were previously unavailable) are currently available.
   1565      * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the
   1566      * packages whose resources(were previously unavailable)
   1567      * are  currently available.
   1568      * </ul>
   1569      *
   1570      * <p class="note">This is a protected intent that can only be sent
   1571      * by the system.
   1572      */
   1573     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1574     public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE =
   1575         "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
   1576 
   1577     /**
   1578      * Broadcast Action: Resources for a set of packages are currently
   1579      * unavailable since the media on which they exist is unavailable.
   1580      * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
   1581      * list of packages whose availability changed.
   1582      * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
   1583      * list of uids of packages whose availability changed.
   1584      * The specified set of packages can no longer be
   1585      * launched and are practically unavailable on the system.
   1586      * <p>Inclues the following extras:
   1587      * <ul>
   1588      * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
   1589      * whose resources are no longer available.
   1590      * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages
   1591      * whose resources are no longer available.
   1592      * </ul>
   1593      *
   1594      * <p class="note">This is a protected intent that can only be sent
   1595      * by the system.
   1596      */
   1597     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1598     public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE =
   1599         "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE";
   1600 
   1601     /**
   1602      * Broadcast Action:  The current system wallpaper has changed.  See
   1603      * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
   1604      */
   1605     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1606     public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
   1607     /**
   1608      * Broadcast Action: The current device {@link android.content.res.Configuration}
   1609      * (orientation, locale, etc) has changed.  When such a change happens, the
   1610      * UIs (view hierarchy) will need to be rebuilt based on this new
   1611      * information; for the most part, applications don't need to worry about
   1612      * this, because the system will take care of stopping and restarting the
   1613      * application to make sure it sees the new changes.  Some system code that
   1614      * can not be restarted will need to watch for this action and handle it
   1615      * appropriately.
   1616      *
   1617      * <p class="note">
   1618      * You can <em>not</em> receive this through components declared
   1619      * in manifests, only by explicitly registering for it with
   1620      * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   1621      * Context.registerReceiver()}.
   1622      *
   1623      * <p class="note">This is a protected intent that can only be sent
   1624      * by the system.
   1625      *
   1626      * @see android.content.res.Configuration
   1627      */
   1628     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1629     public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
   1630     /**
   1631      * Broadcast Action: The current device's locale has changed.
   1632      *
   1633      * <p class="note">This is a protected intent that can only be sent
   1634      * by the system.
   1635      */
   1636     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1637     public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
   1638     /**
   1639      * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
   1640      * charging state, level, and other information about the battery.
   1641      * See {@link android.os.BatteryManager} for documentation on the
   1642      * contents of the Intent.
   1643      *
   1644      * <p class="note">
   1645      * You can <em>not</em> receive this through components declared
   1646      * in manifests, only by explicitly registering for it with
   1647      * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   1648      * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
   1649      * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
   1650      * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
   1651      * broadcasts that are sent and can be received through manifest
   1652      * receivers.
   1653      *
   1654      * <p class="note">This is a protected intent that can only be sent
   1655      * by the system.
   1656      */
   1657     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1658     public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
   1659     /**
   1660      * Broadcast Action:  Indicates low battery condition on the device.
   1661      * This broadcast corresponds to the "Low battery warning" system dialog.
   1662      *
   1663      * <p class="note">This is a protected intent that can only be sent
   1664      * by the system.
   1665      */
   1666     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1667     public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
   1668     /**
   1669      * Broadcast Action:  Indicates the battery is now okay after being low.
   1670      * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
   1671      * gone back up to an okay state.
   1672      *
   1673      * <p class="note">This is a protected intent that can only be sent
   1674      * by the system.
   1675      */
   1676     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1677     public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
   1678     /**
   1679      * Broadcast Action:  External power has been connected to the device.
   1680      * This is intended for applications that wish to register specifically to this notification.
   1681      * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
   1682      * stay active to receive this notification.  This action can be used to implement actions
   1683      * that wait until power is available to trigger.
   1684      *
   1685      * <p class="note">This is a protected intent that can only be sent
   1686      * by the system.
   1687      */
   1688     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1689     public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
   1690     /**
   1691      * Broadcast Action:  External power has been removed from the device.
   1692      * This is intended for applications that wish to register specifically to this notification.
   1693      * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
   1694      * stay active to receive this notification.  This action can be used to implement actions
   1695      * that wait until power is available to trigger.
   1696      *
   1697      * <p class="note">This is a protected intent that can only be sent
   1698      * by the system.
   1699      */
   1700     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1701     public static final String ACTION_POWER_DISCONNECTED =
   1702             "android.intent.action.ACTION_POWER_DISCONNECTED";
   1703     /**
   1704      * Broadcast Action:  Device is shutting down.
   1705      * This is broadcast when the device is being shut down (completely turned
   1706      * off, not sleeping).  Once the broadcast is complete, the final shutdown
   1707      * will proceed and all unsaved data lost.  Apps will not normally need
   1708      * to handle this, since the foreground activity will be paused as well.
   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_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
   1715     /**
   1716      * Activity Action:  Start this activity to request system shutdown.
   1717      * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
   1718      * to request confirmation from the user before shutting down.
   1719      *
   1720      * <p class="note">This is a protected intent that can only be sent
   1721      * by the system.
   1722      *
   1723      * {@hide}
   1724      */
   1725     public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
   1726     /**
   1727      * Broadcast Action:  A sticky broadcast that indicates low memory
   1728      * condition on the device
   1729      *
   1730      * <p class="note">This is a protected intent that can only be sent
   1731      * by the system.
   1732      */
   1733     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1734     public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
   1735     /**
   1736      * Broadcast Action:  Indicates low memory condition on the device no longer exists
   1737      *
   1738      * <p class="note">This is a protected intent that can only be sent
   1739      * by the system.
   1740      */
   1741     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1742     public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
   1743     /**
   1744      * Broadcast Action:  A sticky broadcast that indicates a memory full
   1745      * condition on the device. This is intended for activities that want
   1746      * to be able to fill the data partition completely, leaving only
   1747      * enough free space to prevent system-wide SQLite failures.
   1748      *
   1749      * <p class="note">This is a protected intent that can only be sent
   1750      * by the system.
   1751      *
   1752      * {@hide}
   1753      */
   1754     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1755     public static final String ACTION_DEVICE_STORAGE_FULL = "android.intent.action.DEVICE_STORAGE_FULL";
   1756     /**
   1757      * Broadcast Action:  Indicates memory full condition on the device
   1758      * no longer exists.
   1759      *
   1760      * <p class="note">This is a protected intent that can only be sent
   1761      * by the system.
   1762      *
   1763      * {@hide}
   1764      */
   1765     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1766     public static final String ACTION_DEVICE_STORAGE_NOT_FULL = "android.intent.action.DEVICE_STORAGE_NOT_FULL";
   1767     /**
   1768      * Broadcast Action:  Indicates low memory condition notification acknowledged by user
   1769      * and package management should be started.
   1770      * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
   1771      * notification.
   1772      */
   1773     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1774     public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
   1775     /**
   1776      * Broadcast Action:  The device has entered USB Mass Storage mode.
   1777      * This is used mainly for the USB Settings panel.
   1778      * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
   1779      * when the SD card file system is mounted or unmounted
   1780      * @deprecated replaced by android.os.storage.StorageEventListener
   1781      */
   1782     @Deprecated
   1783     public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
   1784 
   1785     /**
   1786      * Broadcast Action:  The device has exited USB Mass Storage mode.
   1787      * This is used mainly for the USB Settings panel.
   1788      * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
   1789      * when the SD card file system is mounted or unmounted
   1790      * @deprecated replaced by android.os.storage.StorageEventListener
   1791      */
   1792     @Deprecated
   1793     public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
   1794 
   1795     /**
   1796      * Broadcast Action:  External media has been removed.
   1797      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1798      */
   1799     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1800     public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
   1801 
   1802     /**
   1803      * Broadcast Action:  External media is present, but not mounted at its mount point.
   1804      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1805      */
   1806     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1807     public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
   1808 
   1809     /**
   1810      * Broadcast Action:  External media is present, and being disk-checked
   1811      * The path to the mount point for the checking media is contained in the Intent.mData field.
   1812      */
   1813     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1814     public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
   1815 
   1816     /**
   1817      * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
   1818      * The path to the mount point for the checking media is contained in the Intent.mData field.
   1819      */
   1820     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1821     public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
   1822 
   1823     /**
   1824      * Broadcast Action:  External media is present and mounted at its mount point.
   1825      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1826      * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
   1827      * media was mounted read only.
   1828      */
   1829     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1830     public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
   1831 
   1832     /**
   1833      * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
   1834      * The path to the mount point for the shared media is contained in the Intent.mData field.
   1835      */
   1836     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1837     public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
   1838 
   1839     /**
   1840      * Broadcast Action:  External media is no longer being shared via USB mass storage.
   1841      * The path to the mount point for the previously shared media is contained in the Intent.mData field.
   1842      *
   1843      * @hide
   1844      */
   1845     public static final String ACTION_MEDIA_UNSHARED = "android.intent.action.MEDIA_UNSHARED";
   1846 
   1847     /**
   1848      * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
   1849      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1850      */
   1851     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1852     public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
   1853 
   1854     /**
   1855      * Broadcast Action:  External media is present but cannot be mounted.
   1856      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1857      */
   1858     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1859     public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
   1860 
   1861    /**
   1862      * Broadcast Action:  User has expressed the desire to remove the external storage media.
   1863      * Applications should close all files they have open within the mount point when they receive this intent.
   1864      * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
   1865      */
   1866     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1867     public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
   1868 
   1869     /**
   1870      * Broadcast Action:  The media scanner has started scanning a directory.
   1871      * The path to the directory being scanned is contained in the Intent.mData field.
   1872      */
   1873     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1874     public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
   1875 
   1876    /**
   1877      * Broadcast Action:  The media scanner has finished scanning a directory.
   1878      * The path to the scanned directory is contained in the Intent.mData field.
   1879      */
   1880     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1881     public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
   1882 
   1883    /**
   1884      * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
   1885      * The path to the file is contained in the Intent.mData field.
   1886      */
   1887     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1888     public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
   1889 
   1890    /**
   1891      * Broadcast Action:  The "Media Button" was pressed.  Includes a single
   1892      * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
   1893      * caused the broadcast.
   1894      */
   1895     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1896     public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
   1897 
   1898     /**
   1899      * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
   1900      * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
   1901      * caused the broadcast.
   1902      */
   1903     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1904     public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
   1905 
   1906     // *** NOTE: @todo(*) The following really should go into a more domain-specific
   1907     // location; they are not general-purpose actions.
   1908 
   1909     /**
   1910      * Broadcast Action: An GTalk connection has been established.
   1911      */
   1912     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1913     public static final String ACTION_GTALK_SERVICE_CONNECTED =
   1914             "android.intent.action.GTALK_CONNECTED";
   1915 
   1916     /**
   1917      * Broadcast Action: An GTalk connection has been disconnected.
   1918      */
   1919     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1920     public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
   1921             "android.intent.action.GTALK_DISCONNECTED";
   1922 
   1923     /**
   1924      * Broadcast Action: An input method has been changed.
   1925      */
   1926     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1927     public static final String ACTION_INPUT_METHOD_CHANGED =
   1928             "android.intent.action.INPUT_METHOD_CHANGED";
   1929 
   1930     /**
   1931      * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
   1932      * more radios have been turned off or on. The intent will have the following extra value:</p>
   1933      * <ul>
   1934      *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
   1935      *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
   1936      *   turned off</li>
   1937      * </ul>
   1938      *
   1939      * <p class="note">This is a protected intent that can only be sent
   1940      * by the system.
   1941      */
   1942     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1943     public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
   1944 
   1945     /**
   1946      * Broadcast Action: Some content providers have parts of their namespace
   1947      * where they publish new events or items that the user may be especially
   1948      * interested in. For these things, they may broadcast this action when the
   1949      * set of interesting items change.
   1950      *
   1951      * For example, GmailProvider sends this notification when the set of unread
   1952      * mail in the inbox changes.
   1953      *
   1954      * <p>The data of the intent identifies which part of which provider
   1955      * changed. When queried through the content resolver, the data URI will
   1956      * return the data set in question.
   1957      *
   1958      * <p>The intent will have the following extra values:
   1959      * <ul>
   1960      *   <li><em>count</em> - The number of items in the data set. This is the
   1961      *       same as the number of items in the cursor returned by querying the
   1962      *       data URI. </li>
   1963      * </ul>
   1964      *
   1965      * This intent will be sent at boot (if the count is non-zero) and when the
   1966      * data set changes. It is possible for the data set to change without the
   1967      * count changing (for example, if a new unread message arrives in the same
   1968      * sync operation in which a message is archived). The phone should still
   1969      * ring/vibrate/etc as normal in this case.
   1970      */
   1971     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1972     public static final String ACTION_PROVIDER_CHANGED =
   1973             "android.intent.action.PROVIDER_CHANGED";
   1974 
   1975     /**
   1976      * Broadcast Action: Wired Headset plugged in or unplugged.
   1977      *
   1978      * <p>The intent will have the following extra values:
   1979      * <ul>
   1980      *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
   1981      *   <li><em>name</em> - Headset type, human readable string </li>
   1982      *   <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
   1983      * </ul>
   1984      * </ul>
   1985      */
   1986     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1987     public static final String ACTION_HEADSET_PLUG =
   1988             "android.intent.action.HEADSET_PLUG";
   1989 
   1990     /**
   1991      * Broadcast Action: An analog audio speaker/headset plugged in or unplugged.
   1992      *
   1993      * <p>The intent will have the following extra values:
   1994      * <ul>
   1995      *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
   1996      *   <li><em>name</em> - Headset type, human readable string </li>
   1997      * </ul>
   1998      * </ul>
   1999      * @hide
   2000      */
   2001     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2002     public static final String ACTION_USB_ANLG_HEADSET_PLUG =
   2003             "android.intent.action.USB_ANLG_HEADSET_PLUG";
   2004 
   2005     /**
   2006      * Broadcast Action: A digital audio speaker/headset plugged in or unplugged.
   2007      *
   2008      * <p>The intent will have the following extra values:
   2009      * <ul>
   2010      *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
   2011      *   <li><em>name</em> - Headset type, human readable string </li>
   2012      * </ul>
   2013      * </ul>
   2014      * @hide
   2015      */
   2016     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2017     public static final String ACTION_USB_DGTL_HEADSET_PLUG =
   2018             "android.intent.action.USB_DGTL_HEADSET_PLUG";
   2019 
   2020     /**
   2021      * Broadcast Action: A HMDI cable was plugged or unplugged
   2022      *
   2023      * <p>The intent will have the following extra values:
   2024      * <ul>
   2025      *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
   2026      *   <li><em>name</em> - HDMI cable, human readable string </li>
   2027      * </ul>
   2028      * </ul>
   2029      * @hide
   2030      */
   2031     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2032     public static final String ACTION_HDMI_AUDIO_PLUG =
   2033             "android.intent.action.HDMI_AUDIO_PLUG";
   2034 
   2035     /**
   2036      * <p>Broadcast Action: The user has switched on advanced settings in the settings app:</p>
   2037      * <ul>
   2038      *   <li><em>state</em> - A boolean value indicating whether the settings is on or off.</li>
   2039      * </ul>
   2040      *
   2041      * <p class="note">This is a protected intent that can only be sent
   2042      * by the system.
   2043      *
   2044      * @hide
   2045      */
   2046     //@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2047     public static final String ACTION_ADVANCED_SETTINGS_CHANGED
   2048             = "android.intent.action.ADVANCED_SETTINGS";
   2049 
   2050     /**
   2051      * Broadcast Action: An outgoing call is about to be placed.
   2052      *
   2053      * <p>The Intent will have the following extra value:
   2054      * <ul>
   2055      *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
   2056      *       the phone number originally intended to be dialed.</li>
   2057      * </ul>
   2058      * <p>Once the broadcast is finished, the resultData is used as the actual
   2059      * number to call.  If  <code>null</code>, no call will be placed.</p>
   2060      * <p>It is perfectly acceptable for multiple receivers to process the
   2061      * outgoing call in turn: for example, a parental control application
   2062      * might verify that the user is authorized to place the call at that
   2063      * time, then a number-rewriting application might add an area code if
   2064      * one was not specified.</p>
   2065      * <p>For consistency, any receiver whose purpose is to prohibit phone
   2066      * calls should have a priority of 0, to ensure it will see the final
   2067      * phone number to be dialed.
   2068      * Any receiver whose purpose is to rewrite phone numbers to be called
   2069      * should have a positive priority.
   2070      * Negative priorities are reserved for the system for this broadcast;
   2071      * using them may cause problems.</p>
   2072      * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
   2073      * abort the broadcast.</p>
   2074      * <p>Emergency calls cannot be intercepted using this mechanism, and
   2075      * other calls cannot be modified to call emergency numbers using this
   2076      * mechanism.
   2077      * <p>You must hold the
   2078      * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
   2079      * permission to receive this Intent.</p>
   2080      *
   2081      * <p class="note">This is a protected intent that can only be sent
   2082      * by the system.
   2083      */
   2084     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2085     public static final String ACTION_NEW_OUTGOING_CALL =
   2086             "android.intent.action.NEW_OUTGOING_CALL";
   2087 
   2088     /**
   2089      * Broadcast Action: Have the device reboot.  This is only for use by
   2090      * system code.
   2091      *
   2092      * <p class="note">This is a protected intent that can only be sent
   2093      * by the system.
   2094      */
   2095     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2096     public static final String ACTION_REBOOT =
   2097             "android.intent.action.REBOOT";
   2098 
   2099     /**
   2100      * Broadcast Action:  A sticky broadcast for changes in the physical
   2101      * docking state of the device.
   2102      *
   2103      * <p>The intent will have the following extra values:
   2104      * <ul>
   2105      *   <li><em>{@link #EXTRA_DOCK_STATE}</em> - the current dock
   2106      *       state, indicating which dock the device is physically in.</li>
   2107      * </ul>
   2108      * <p>This is intended for monitoring the current physical dock state.
   2109      * See {@link android.app.UiModeManager} for the normal API dealing with
   2110      * dock mode changes.
   2111      */
   2112     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   2113     public static final String ACTION_DOCK_EVENT =
   2114             "android.intent.action.DOCK_EVENT";
   2115 
   2116     /**
   2117      * Broadcast Action: a remote intent is to be broadcasted.
   2118      *
   2119      * A remote intent is used for remote RPC between devices. The remote intent
   2120      * is serialized and sent from one device to another device. The receiving
   2121      * device parses the remote intent and broadcasts it. Note that anyone can
   2122      * broadcast a remote intent. However, if the intent receiver of the remote intent
   2123      * does not trust intent broadcasts from arbitrary intent senders, it should require
   2124      * the sender to hold certain permissions so only trusted sender's broadcast will be
   2125      * let through.
   2126      * @hide
   2127      */
   2128     public static final String ACTION_REMOTE_INTENT =
   2129             "com.google.android.c2dm.intent.RECEIVE";
   2130 
   2131     /**
   2132      * Broadcast Action: hook for permforming cleanup after a system update.
   2133      *
   2134      * The broadcast is sent when the system is booting, before the
   2135      * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
   2136      * image.  A receiver for this should do its work and then disable itself
   2137      * so that it does not get run again at the next boot.
   2138      * @hide
   2139      */
   2140     public static final String ACTION_PRE_BOOT_COMPLETED =
   2141             "android.intent.action.PRE_BOOT_COMPLETED";
   2142 
   2143     // ---------------------------------------------------------------------
   2144     // ---------------------------------------------------------------------
   2145     // Standard intent categories (see addCategory()).
   2146 
   2147     /**
   2148      * Set if the activity should be an option for the default action
   2149      * (center press) to perform on a piece of data.  Setting this will
   2150      * hide from the user any activities without it set when performing an
   2151      * action on some data.  Note that this is normal -not- set in the
   2152      * Intent when initiating an action -- it is for use in intent filters
   2153      * specified in packages.
   2154      */
   2155     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2156     public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
   2157     /**
   2158      * Activities that can be safely invoked from a browser must support this
   2159      * category.  For example, if the user is viewing a web page or an e-mail
   2160      * and clicks on a link in the text, the Intent generated execute that
   2161      * link will require the BROWSABLE category, so that only activities
   2162      * supporting this category will be considered as possible actions.  By
   2163      * supporting this category, you are promising that there is nothing
   2164      * damaging (without user intervention) that can happen by invoking any
   2165      * matching Intent.
   2166      */
   2167     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2168     public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
   2169     /**
   2170      * Set if the activity should be considered as an alternative action to
   2171      * the data the user is currently viewing.  See also
   2172      * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
   2173      * applies to the selection in a list of items.
   2174      *
   2175      * <p>Supporting this category means that you would like your activity to be
   2176      * displayed in the set of alternative things the user can do, usually as
   2177      * part of the current activity's options menu.  You will usually want to
   2178      * include a specific label in the &lt;intent-filter&gt; of this action
   2179      * describing to the user what it does.
   2180      *
   2181      * <p>The action of IntentFilter with this category is important in that it
   2182      * describes the specific action the target will perform.  This generally
   2183      * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
   2184      * a specific name such as "com.android.camera.action.CROP.  Only one
   2185      * alternative of any particular action will be shown to the user, so using
   2186      * a specific action like this makes sure that your alternative will be
   2187      * displayed while also allowing other applications to provide their own
   2188      * overrides of that particular action.
   2189      */
   2190     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2191     public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
   2192     /**
   2193      * Set if the activity should be considered as an alternative selection
   2194      * action to the data the user has currently selected.  This is like
   2195      * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
   2196      * of items from which the user can select, giving them alternatives to the
   2197      * default action that will be performed on it.
   2198      */
   2199     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2200     public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
   2201     /**
   2202      * Intended to be used as a tab inside of an containing TabActivity.
   2203      */
   2204     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2205     public static final String CATEGORY_TAB = "android.intent.category.TAB";
   2206     /**
   2207      * Should be displayed in the top-level launcher.
   2208      */
   2209     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2210     public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
   2211     /**
   2212      * Provides information about the package it is in; typically used if
   2213      * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
   2214      * a front-door to the user without having to be shown in the all apps list.
   2215      */
   2216     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2217     public static final String CATEGORY_INFO = "android.intent.category.INFO";
   2218     /**
   2219      * This is the home activity, that is the first activity that is displayed
   2220      * when the device boots.
   2221      */
   2222     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2223     public static final String CATEGORY_HOME = "android.intent.category.HOME";
   2224     /**
   2225      * This activity is a preference panel.
   2226      */
   2227     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2228     public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
   2229     /**
   2230      * This activity is a development preference panel.
   2231      */
   2232     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2233     public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
   2234     /**
   2235      * Capable of running inside a parent activity container.
   2236      */
   2237     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2238     public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
   2239     /**
   2240      * This activity allows the user to browse and download new applications.
   2241      */
   2242     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2243     public static final String CATEGORY_APP_MARKET = "android.intent.category.APP_MARKET";
   2244     /**
   2245      * This activity may be exercised by the monkey or other automated test tools.
   2246      */
   2247     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2248     public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
   2249     /**
   2250      * To be used as a test (not part of the normal user experience).
   2251      */
   2252     public static final String CATEGORY_TEST = "android.intent.category.TEST";
   2253     /**
   2254      * To be used as a unit test (run through the Test Harness).
   2255      */
   2256     public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
   2257     /**
   2258      * To be used as an sample code example (not part of the normal user
   2259      * experience).
   2260      */
   2261     public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
   2262     /**
   2263      * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
   2264      * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
   2265      * when queried, though it is allowable for those columns to be blank.
   2266      */
   2267     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2268     public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
   2269 
   2270     /**
   2271      * To be used as code under test for framework instrumentation tests.
   2272      */
   2273     public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
   2274             "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
   2275     /**
   2276      * An activity to run when device is inserted into a car dock.
   2277      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2278      * information, see {@link android.app.UiModeManager}.
   2279      */
   2280     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2281     public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
   2282     /**
   2283      * An activity to run when device is inserted into a car dock.
   2284      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2285      * information, see {@link android.app.UiModeManager}.
   2286      */
   2287     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2288     public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
   2289     /**
   2290      * An activity to run when device is inserted into a analog (low end) dock.
   2291      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2292      * information, see {@link android.app.UiModeManager}.
   2293      */
   2294     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2295     public static final String CATEGORY_LE_DESK_DOCK = "android.intent.category.LE_DESK_DOCK";
   2296 
   2297     /**
   2298      * An activity to run when device is inserted into a digital (high end) dock.
   2299      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2300      * information, see {@link android.app.UiModeManager}.
   2301      */
   2302     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2303     public static final String CATEGORY_HE_DESK_DOCK = "android.intent.category.HE_DESK_DOCK";
   2304 
   2305     /**
   2306      * Used to indicate that the activity can be used in a car environment.
   2307      */
   2308     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2309     public static final String CATEGORY_CAR_MODE = "android.intent.category.CAR_MODE";
   2310 
   2311     // ---------------------------------------------------------------------
   2312     // ---------------------------------------------------------------------
   2313     // Standard extra data keys.
   2314 
   2315     /**
   2316      * The initial data to place in a newly created record.  Use with
   2317      * {@link #ACTION_INSERT}.  The data here is a Map containing the same
   2318      * fields as would be given to the underlying ContentProvider.insert()
   2319      * call.
   2320      */
   2321     public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
   2322 
   2323     /**
   2324      * A constant CharSequence that is associated with the Intent, used with
   2325      * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
   2326      * this may be a styled CharSequence, so you must use
   2327      * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
   2328      * retrieve it.
   2329      */
   2330     public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
   2331 
   2332     /**
   2333      * A content: URI holding a stream of data associated with the Intent,
   2334      * used with {@link #ACTION_SEND} to supply the data being sent.
   2335      */
   2336     public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
   2337 
   2338     /**
   2339      * A String[] holding e-mail addresses that should be delivered to.
   2340      */
   2341     public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
   2342 
   2343     /**
   2344      * A String[] holding e-mail addresses that should be carbon copied.
   2345      */
   2346     public static final String EXTRA_CC       = "android.intent.extra.CC";
   2347 
   2348     /**
   2349      * A String[] holding e-mail addresses that should be blind carbon copied.
   2350      */
   2351     public static final String EXTRA_BCC      = "android.intent.extra.BCC";
   2352 
   2353     /**
   2354      * A constant string holding the desired subject line of a message.
   2355      */
   2356     public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
   2357 
   2358     /**
   2359      * An Intent describing the choices you would like shown with
   2360      * {@link #ACTION_PICK_ACTIVITY}.
   2361      */
   2362     public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
   2363 
   2364     /**
   2365      * A CharSequence dialog title to provide to the user when used with a
   2366      * {@link #ACTION_CHOOSER}.
   2367      */
   2368     public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
   2369 
   2370     /**
   2371      * A Parcelable[] of {@link Intent} or
   2372      * {@link android.content.pm.LabeledIntent} objects as set with
   2373      * {@link #putExtra(String, Parcelable[])} of additional activities to place
   2374      * a the front of the list of choices, when shown to the user with a
   2375      * {@link #ACTION_CHOOSER}.
   2376      */
   2377     public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
   2378 
   2379     /**
   2380      * A {@link android.view.KeyEvent} object containing the event that
   2381      * triggered the creation of the Intent it is in.
   2382      */
   2383     public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
   2384 
   2385     /**
   2386      * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
   2387      * before shutting down.
   2388      *
   2389      * {@hide}
   2390      */
   2391     public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
   2392 
   2393     /**
   2394      * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
   2395      * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
   2396      * of restarting the application.
   2397      */
   2398     public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
   2399 
   2400     /**
   2401      * A String holding the phone number originally entered in
   2402      * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
   2403      * number to call in a {@link android.content.Intent#ACTION_CALL}.
   2404      */
   2405     public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
   2406 
   2407     /**
   2408      * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
   2409      * intents to supply the uid the package had been assigned.  Also an optional
   2410      * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
   2411      * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
   2412      * purpose.
   2413      */
   2414     public static final String EXTRA_UID = "android.intent.extra.UID";
   2415 
   2416     /**
   2417      * @hide String array of package names.
   2418      */
   2419     public static final String EXTRA_PACKAGES = "android.intent.extra.PACKAGES";
   2420 
   2421     /**
   2422      * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
   2423      * intents to indicate whether this represents a full uninstall (removing
   2424      * both the code and its data) or a partial uninstall (leaving its data,
   2425      * implying that this is an update).
   2426      */
   2427     public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
   2428 
   2429     /**
   2430      * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
   2431      * intents to indicate that this is a replacement of the package, so this
   2432      * broadcast will immediately be followed by an add broadcast for a
   2433      * different version of the same package.
   2434      */
   2435     public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
   2436 
   2437     /**
   2438      * Used as an int extra field in {@link android.app.AlarmManager} intents
   2439      * to tell the application being invoked how many pending alarms are being
   2440      * delievered with the intent.  For one-shot alarms this will always be 1.
   2441      * For recurring alarms, this might be greater than 1 if the device was
   2442      * asleep or powered off at the time an earlier alarm would have been
   2443      * delivered.
   2444      */
   2445     public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
   2446 
   2447     /**
   2448      * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
   2449      * intents to request the dock state.  Possible values are
   2450      * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
   2451      * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
   2452      * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}, or
   2453      * {@link android.content.Intent#EXTRA_DOCK_STATE_LE_DESK}, or
   2454      * {@link android.content.Intent#EXTRA_DOCK_STATE_HE_DESK}.
   2455      */
   2456     public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
   2457 
   2458     /**
   2459      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   2460      * to represent that the phone is not in any dock.
   2461      */
   2462     public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
   2463 
   2464     /**
   2465      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   2466      * to represent that the phone is in a desk dock.
   2467      */
   2468     public static final int EXTRA_DOCK_STATE_DESK = 1;
   2469 
   2470     /**
   2471      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   2472      * to represent that the phone is in a car dock.
   2473      */
   2474     public static final int EXTRA_DOCK_STATE_CAR = 2;
   2475 
   2476     /**
   2477      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   2478      * to represent that the phone is in a analog (low end) dock.
   2479      */
   2480     public static final int EXTRA_DOCK_STATE_LE_DESK = 3;
   2481 
   2482     /**
   2483      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   2484      * to represent that the phone is in a digital (high end) dock.
   2485      */
   2486     public static final int EXTRA_DOCK_STATE_HE_DESK = 4;
   2487 
   2488     /**
   2489      * Boolean that can be supplied as meta-data with a dock activity, to
   2490      * indicate that the dock should take over the home key when it is active.
   2491      */
   2492     public static final String METADATA_DOCK_HOME = "android.dock_home";
   2493 
   2494     /**
   2495      * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
   2496      * the bug report.
   2497      */
   2498     public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
   2499 
   2500     /**
   2501      * Used in the extra field in the remote intent. It's astring token passed with the
   2502      * remote intent.
   2503      */
   2504     public static final String EXTRA_REMOTE_INTENT_TOKEN =
   2505             "android.intent.extra.remote_intent_token";
   2506 
   2507     /**
   2508      * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
   2509      * will contain only the first name in the list.
   2510      */
   2511     @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
   2512             "android.intent.extra.changed_component_name";
   2513 
   2514     /**
   2515      * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED},
   2516      * and contains a string array of all of the components that have changed.
   2517      */
   2518     public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
   2519             "android.intent.extra.changed_component_name_list";
   2520 
   2521     /**
   2522      * This field is part of
   2523      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
   2524      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
   2525      * and contains a string array of all of the components that have changed.
   2526      */
   2527     public static final String EXTRA_CHANGED_PACKAGE_LIST =
   2528             "android.intent.extra.changed_package_list";
   2529 
   2530     /**
   2531      * This field is part of
   2532      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
   2533      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
   2534      * and contains an integer array of uids of all of the components
   2535      * that have changed.
   2536      */
   2537     public static final String EXTRA_CHANGED_UID_LIST =
   2538             "android.intent.extra.changed_uid_list";
   2539 
   2540     /**
   2541      * @hide
   2542      * Magic extra system code can use when binding, to give a label for
   2543      * who it is that has bound to a service.  This is an integer giving
   2544      * a framework string resource that can be displayed to the user.
   2545      */
   2546     public static final String EXTRA_CLIENT_LABEL =
   2547             "android.intent.extra.client_label";
   2548 
   2549     /**
   2550      * @hide
   2551      * Magic extra system code can use when binding, to give a PendingIntent object
   2552      * that can be launched for the user to disable the system's use of this
   2553      * service.
   2554      */
   2555     public static final String EXTRA_CLIENT_INTENT =
   2556             "android.intent.extra.client_intent";
   2557 
   2558     /**
   2559      * Used to indicate that a {@link #ACTION_GET_CONTENT} intent should only return
   2560      * data that is on the local device.  This is a boolean extra; the default
   2561      * is false.  If true, an implementation of ACTION_GET_CONTENT should only allow
   2562      * the user to select media that is already on the device, not requiring it
   2563      * be downloaded from a remote service when opened.  Another way to look
   2564      * at it is that such content should generally have a "_data" column to the
   2565      * path of the content on local external storage.
   2566      */
   2567     public static final String EXTRA_LOCAL_ONLY =
   2568         "android.intent.extra.LOCAL_ONLY";
   2569 
   2570     // ---------------------------------------------------------------------
   2571     // ---------------------------------------------------------------------
   2572     // Intent flags (see mFlags variable).
   2573 
   2574     /**
   2575      * If set, the recipient of this Intent will be granted permission to
   2576      * perform read operations on the Uri in the Intent's data.
   2577      */
   2578     public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
   2579     /**
   2580      * If set, the recipient of this Intent will be granted permission to
   2581      * perform write operations on the Uri in the Intent's data.
   2582      */
   2583     public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
   2584     /**
   2585      * Can be set by the caller to indicate that this Intent is coming from
   2586      * a background operation, not from direct user interaction.
   2587      */
   2588     public static final int FLAG_FROM_BACKGROUND = 0x00000004;
   2589     /**
   2590      * A flag you can enable for debugging: when set, log messages will be
   2591      * printed during the resolution of this intent to show you what has
   2592      * been found to create the final resolved list.
   2593      */
   2594     public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
   2595     /**
   2596      * If set, this intent will not match any components in packages that
   2597      * are currently stopped.  If this is not set, then the default behavior
   2598      * is to include such applications in the result.
   2599      */
   2600     public static final int FLAG_EXCLUDE_STOPPED_PACKAGES = 0x00000010;
   2601     /**
   2602      * If set, this intent will always match any components in packages that
   2603      * are currently stopped.  This is the default behavior when
   2604      * {@link #FLAG_EXCLUDE_STOPPED_PACKAGES} is not set.  If both of these
   2605      * flags are set, this one wins (it allows overriding of exclude for
   2606      * places where the framework may automatically set the exclude flag).
   2607      */
   2608     public static final int FLAG_INCLUDE_STOPPED_PACKAGES = 0x00000020;
   2609 
   2610     /**
   2611      * If set, the new activity is not kept in the history stack.  As soon as
   2612      * the user navigates away from it, the activity is finished.  This may also
   2613      * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
   2614      * noHistory} attribute.
   2615      */
   2616     public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
   2617     /**
   2618      * If set, the activity will not be launched if it is already running
   2619      * at the top of the history stack.
   2620      */
   2621     public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
   2622     /**
   2623      * If set, this activity will become the start of a new task on this
   2624      * history stack.  A task (from the activity that started it to the
   2625      * next task activity) defines an atomic group of activities that the
   2626      * user can move to.  Tasks can be moved to the foreground and background;
   2627      * all of the activities inside of a particular task always remain in
   2628      * the same order.  See
   2629      * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
   2630      * Stack</a> for more information about tasks.
   2631      *
   2632      * <p>This flag is generally used by activities that want
   2633      * to present a "launcher" style behavior: they give the user a list of
   2634      * separate things that can be done, which otherwise run completely
   2635      * independently of the activity launching them.
   2636      *
   2637      * <p>When using this flag, if a task is already running for the activity
   2638      * you are now starting, then a new activity will not be started; instead,
   2639      * the current task will simply be brought to the front of the screen with
   2640      * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
   2641      * to disable this behavior.
   2642      *
   2643      * <p>This flag can not be used when the caller is requesting a result from
   2644      * the activity being launched.
   2645      */
   2646     public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
   2647     /**
   2648      * <strong>Do not use this flag unless you are implementing your own
   2649      * top-level application launcher.</strong>  Used in conjunction with
   2650      * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
   2651      * behavior of bringing an existing task to the foreground.  When set,
   2652      * a new task is <em>always</em> started to host the Activity for the
   2653      * Intent, regardless of whether there is already an existing task running
   2654      * the same thing.
   2655      *
   2656      * <p><strong>Because the default system does not include graphical task management,
   2657      * you should not use this flag unless you provide some way for a user to
   2658      * return back to the tasks you have launched.</strong>
   2659      *
   2660      * <p>This flag is ignored if
   2661      * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
   2662      *
   2663      * <p>See
   2664      * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
   2665      * Stack</a> for more information about tasks.
   2666      */
   2667     public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
   2668     /**
   2669      * If set, and the activity being launched is already running in the
   2670      * current task, then instead of launching a new instance of that activity,
   2671      * all of the other activities on top of it will be closed and this Intent
   2672      * will be delivered to the (now on top) old activity as a new Intent.
   2673      *
   2674      * <p>For example, consider a task consisting of the activities: A, B, C, D.
   2675      * If D calls startActivity() with an Intent that resolves to the component
   2676      * of activity B, then C and D will be finished and B receive the given
   2677      * Intent, resulting in the stack now being: A, B.
   2678      *
   2679      * <p>The currently running instance of activity B in the above example will
   2680      * either receive the new intent you are starting here in its
   2681      * onNewIntent() method, or be itself finished and restarted with the
   2682      * new intent.  If it has declared its launch mode to be "multiple" (the
   2683      * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
   2684      * the same intent, then it will be finished and re-created; for all other
   2685      * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
   2686      * Intent will be delivered to the current instance's onNewIntent().
   2687      *
   2688      * <p>This launch mode can also be used to good effect in conjunction with
   2689      * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
   2690      * of a task, it will bring any currently running instance of that task
   2691      * to the foreground, and then clear it to its root state.  This is
   2692      * especially useful, for example, when launching an activity from the
   2693      * notification manager.
   2694      *
   2695      * <p>See
   2696      * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
   2697      * Stack</a> for more information about tasks.
   2698      */
   2699     public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
   2700     /**
   2701      * If set and this intent is being used to launch a new activity from an
   2702      * existing one, then the reply target of the existing activity will be
   2703      * transfered to the new activity.  This way the new activity can call
   2704      * {@link android.app.Activity#setResult} and have that result sent back to
   2705      * the reply target of the original activity.
   2706      */
   2707     public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
   2708     /**
   2709      * If set and this intent is being used to launch a new activity from an
   2710      * existing one, the current activity will not be counted as the top
   2711      * activity for deciding whether the new intent should be delivered to
   2712      * the top instead of starting a new one.  The previous activity will
   2713      * be used as the top, with the assumption being that the current activity
   2714      * will finish itself immediately.
   2715      */
   2716     public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
   2717     /**
   2718      * If set, the new activity is not kept in the list of recently launched
   2719      * activities.
   2720      */
   2721     public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
   2722     /**
   2723      * This flag is not normally set by application code, but set for you by
   2724      * the system as described in the
   2725      * {@link android.R.styleable#AndroidManifestActivity_launchMode
   2726      * launchMode} documentation for the singleTask mode.
   2727      */
   2728     public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
   2729     /**
   2730      * If set, and this activity is either being started in a new task or
   2731      * bringing to the top an existing task, then it will be launched as
   2732      * the front door of the task.  This will result in the application of
   2733      * any affinities needed to have that task in the proper state (either
   2734      * moving activities to or from it), or simply resetting that task to
   2735      * its initial state if needed.
   2736      */
   2737     public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
   2738     /**
   2739      * This flag is not normally set by application code, but set for you by
   2740      * the system if this activity is being launched from history
   2741      * (longpress home key).
   2742      */
   2743     public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
   2744     /**
   2745      * If set, this marks a point in the task's activity stack that should
   2746      * be cleared when the task is reset.  That is, the next time the task
   2747      * is brought to the foreground with
   2748      * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
   2749      * the user re-launching it from home), this activity and all on top of
   2750      * it will be finished so that the user does not return to them, but
   2751      * instead returns to whatever activity preceeded it.
   2752      *
   2753      * <p>This is useful for cases where you have a logical break in your
   2754      * application.  For example, an e-mail application may have a command
   2755      * to view an attachment, which launches an image view activity to
   2756      * display it.  This activity should be part of the e-mail application's
   2757      * task, since it is a part of the task the user is involved in.  However,
   2758      * if the user leaves that task, and later selects the e-mail app from
   2759      * home, we may like them to return to the conversation they were
   2760      * viewing, not the picture attachment, since that is confusing.  By
   2761      * setting this flag when launching the image viewer, that viewer and
   2762      * any activities it starts will be removed the next time the user returns
   2763      * to mail.
   2764      */
   2765     public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
   2766     /**
   2767      * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
   2768      * callback from occurring on the current frontmost activity before it is
   2769      * paused as the newly-started activity is brought to the front.
   2770      *
   2771      * <p>Typically, an activity can rely on that callback to indicate that an
   2772      * explicit user action has caused their activity to be moved out of the
   2773      * foreground. The callback marks an appropriate point in the activity's
   2774      * lifecycle for it to dismiss any notifications that it intends to display
   2775      * "until the user has seen them," such as a blinking LED.
   2776      *
   2777      * <p>If an activity is ever started via any non-user-driven events such as
   2778      * phone-call receipt or an alarm handler, this flag should be passed to {@link
   2779      * Context#startActivity Context.startActivity}, ensuring that the pausing
   2780      * activity does not think the user has acknowledged its notification.
   2781      */
   2782     public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
   2783     /**
   2784      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   2785      * this flag will cause the launched activity to be brought to the front of its
   2786      * task's history stack if it is already running.
   2787      *
   2788      * <p>For example, consider a task consisting of four activities: A, B, C, D.
   2789      * If D calls startActivity() with an Intent that resolves to the component
   2790      * of activity B, then B will be brought to the front of the history stack,
   2791      * with this resulting order:  A, C, D, B.
   2792      *
   2793      * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
   2794      * specified.
   2795      */
   2796     public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
   2797     /**
   2798      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   2799      * this flag will prevent the system from applying an activity transition
   2800      * animation to go to the next activity state.  This doesn't mean an
   2801      * animation will never run -- if another activity change happens that doesn't
   2802      * specify this flag before the activity started here is displayed, then
   2803      * that transition will be used.  This flag can be put to good use
   2804      * when you are going to do a series of activity operations but the
   2805      * animation seen by the user shouldn't be driven by the first activity
   2806      * change but rather a later one.
   2807      */
   2808     public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
   2809     /**
   2810      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   2811      * this flag will cause any existing task that would be associated with the
   2812      * activity to be cleared before the activity is started.  That is, the activity
   2813      * becomes the new root of an otherwise empty task, and any old activities
   2814      * are finished.  This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
   2815      */
   2816     public static final int FLAG_ACTIVITY_CLEAR_TASK = 0X00008000;
   2817     /**
   2818      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   2819      * this flag will cause a newly launching task to be placed on top of the current
   2820      * home activity task (if there is one).  That is, pressing back from the task
   2821      * will always return the user to home even if that was not the last activity they
   2822      * saw.   This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
   2823      */
   2824     public static final int FLAG_ACTIVITY_TASK_ON_HOME = 0X00004000;
   2825     /**
   2826      * If set, when sending a broadcast only registered receivers will be
   2827      * called -- no BroadcastReceiver components will be launched.
   2828      */
   2829     public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
   2830     /**
   2831      * If set, when sending a broadcast the new broadcast will replace
   2832      * any existing pending broadcast that matches it.  Matching is defined
   2833      * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning
   2834      * true for the intents of the two broadcasts.  When a match is found,
   2835      * the new broadcast (and receivers associated with it) will replace the
   2836      * existing one in the pending broadcast list, remaining at the same
   2837      * position in the list.
   2838      *
   2839      * <p>This flag is most typically used with sticky broadcasts, which
   2840      * only care about delivering the most recent values of the broadcast
   2841      * to their receivers.
   2842      */
   2843     public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
   2844     /**
   2845      * If set, when sending a broadcast <i>before boot has completed</i> only
   2846      * registered receivers will be called -- no BroadcastReceiver components
   2847      * will be launched.  Sticky intent state will be recorded properly even
   2848      * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
   2849      * is specified in the broadcast intent, this flag is unnecessary.
   2850      *
   2851      * <p>This flag is only for use by system sevices as a convenience to
   2852      * avoid having to implement a more complex mechanism around detection
   2853      * of boot completion.
   2854      *
   2855      * @hide
   2856      */
   2857     public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x10000000;
   2858     /**
   2859      * Set when this broadcast is for a boot upgrade, a special mode that
   2860      * allows the broadcast to be sent before the system is ready and launches
   2861      * the app process with no providers running in it.
   2862      * @hide
   2863      */
   2864     public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x08000000;
   2865 
   2866     /**
   2867      * @hide Flags that can't be changed with PendingIntent.
   2868      */
   2869     public static final int IMMUTABLE_FLAGS =
   2870             FLAG_GRANT_READ_URI_PERMISSION
   2871             | FLAG_GRANT_WRITE_URI_PERMISSION;
   2872 
   2873     // ---------------------------------------------------------------------
   2874     // ---------------------------------------------------------------------
   2875     // toUri() and parseUri() options.
   2876 
   2877     /**
   2878      * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
   2879      * always has the "intent:" scheme.  This syntax can be used when you want
   2880      * to later disambiguate between URIs that are intended to describe an
   2881      * Intent vs. all others that should be treated as raw URIs.  When used
   2882      * with {@link #parseUri}, any other scheme will result in a generic
   2883      * VIEW action for that raw URI.
   2884      */
   2885     public static final int URI_INTENT_SCHEME = 1<<0;
   2886 
   2887     // ---------------------------------------------------------------------
   2888 
   2889     private String mAction;
   2890     private Uri mData;
   2891     private String mType;
   2892     private String mPackage;
   2893     private ComponentName mComponent;
   2894     private int mFlags;
   2895     private HashSet<String> mCategories;
   2896     private Bundle mExtras;
   2897     private Rect mSourceBounds;
   2898 
   2899     // ---------------------------------------------------------------------
   2900 
   2901     /**
   2902      * Create an empty intent.
   2903      */
   2904     public Intent() {
   2905     }
   2906 
   2907     /**
   2908      * Copy constructor.
   2909      */
   2910     public Intent(Intent o) {
   2911         this.mAction = o.mAction;
   2912         this.mData = o.mData;
   2913         this.mType = o.mType;
   2914         this.mPackage = o.mPackage;
   2915         this.mComponent = o.mComponent;
   2916         this.mFlags = o.mFlags;
   2917         if (o.mCategories != null) {
   2918             this.mCategories = new HashSet<String>(o.mCategories);
   2919         }
   2920         if (o.mExtras != null) {
   2921             this.mExtras = new Bundle(o.mExtras);
   2922         }
   2923         if (o.mSourceBounds != null) {
   2924             this.mSourceBounds = new Rect(o.mSourceBounds);
   2925         }
   2926     }
   2927 
   2928     @Override
   2929     public Object clone() {
   2930         return new Intent(this);
   2931     }
   2932 
   2933     private Intent(Intent o, boolean all) {
   2934         this.mAction = o.mAction;
   2935         this.mData = o.mData;
   2936         this.mType = o.mType;
   2937         this.mPackage = o.mPackage;
   2938         this.mComponent = o.mComponent;
   2939         if (o.mCategories != null) {
   2940             this.mCategories = new HashSet<String>(o.mCategories);
   2941         }
   2942     }
   2943 
   2944     /**
   2945      * Make a clone of only the parts of the Intent that are relevant for
   2946      * filter matching: the action, data, type, component, and categories.
   2947      */
   2948     public Intent cloneFilter() {
   2949         return new Intent(this, false);
   2950     }
   2951 
   2952     /**
   2953      * Create an intent with a given action.  All other fields (data, type,
   2954      * class) are null.  Note that the action <em>must</em> be in a
   2955      * namespace because Intents are used globally in the system -- for
   2956      * example the system VIEW action is android.intent.action.VIEW; an
   2957      * application's custom action would be something like
   2958      * com.google.app.myapp.CUSTOM_ACTION.
   2959      *
   2960      * @param action The Intent action, such as ACTION_VIEW.
   2961      */
   2962     public Intent(String action) {
   2963         setAction(action);
   2964     }
   2965 
   2966     /**
   2967      * Create an intent with a given action and for a given data url.  Note
   2968      * that the action <em>must</em> be in a namespace because Intents are
   2969      * used globally in the system -- for example the system VIEW action is
   2970      * android.intent.action.VIEW; an application's custom action would be
   2971      * something like com.google.app.myapp.CUSTOM_ACTION.
   2972      *
   2973      * <p><em>Note: scheme and host name matching in the Android framework is
   2974      * case-sensitive, unlike the formal RFC.  As a result,
   2975      * you should always ensure that you write your Uri with these elements
   2976      * using lower case letters, and normalize any Uris you receive from
   2977      * outside of Android to ensure the scheme and host is lower case.</em></p>
   2978      *
   2979      * @param action The Intent action, such as ACTION_VIEW.
   2980      * @param uri The Intent data URI.
   2981      */
   2982     public Intent(String action, Uri uri) {
   2983         setAction(action);
   2984         mData = uri;
   2985     }
   2986 
   2987     /**
   2988      * Create an intent for a specific component.  All other fields (action, data,
   2989      * type, class) are null, though they can be modified later with explicit
   2990      * calls.  This provides a convenient way to create an intent that is
   2991      * intended to execute a hard-coded class name, rather than relying on the
   2992      * system to find an appropriate class for you; see {@link #setComponent}
   2993      * for more information on the repercussions of this.
   2994      *
   2995      * @param packageContext A Context of the application package implementing
   2996      * this class.
   2997      * @param cls The component class that is to be used for the intent.
   2998      *
   2999      * @see #setClass
   3000      * @see #setComponent
   3001      * @see #Intent(String, android.net.Uri , Context, Class)
   3002      */
   3003     public Intent(Context packageContext, Class<?> cls) {
   3004         mComponent = new ComponentName(packageContext, cls);
   3005     }
   3006 
   3007     /**
   3008      * Create an intent for a specific component with a specified action and data.
   3009      * This is equivalent using {@link #Intent(String, android.net.Uri)} to
   3010      * construct the Intent and then calling {@link #setClass} to set its
   3011      * class.
   3012      *
   3013      * <p><em>Note: scheme and host name matching in the Android framework is
   3014      * case-sensitive, unlike the formal RFC.  As a result,
   3015      * you should always ensure that you write your Uri with these elements
   3016      * using lower case letters, and normalize any Uris you receive from
   3017      * outside of Android to ensure the scheme and host is lower case.</em></p>
   3018      *
   3019      * @param action The Intent action, such as ACTION_VIEW.
   3020      * @param uri The Intent data URI.
   3021      * @param packageContext A Context of the application package implementing
   3022      * this class.
   3023      * @param cls The component class that is to be used for the intent.
   3024      *
   3025      * @see #Intent(String, android.net.Uri)
   3026      * @see #Intent(Context, Class)
   3027      * @see #setClass
   3028      * @see #setComponent
   3029      */
   3030     public Intent(String action, Uri uri,
   3031             Context packageContext, Class<?> cls) {
   3032         setAction(action);
   3033         mData = uri;
   3034         mComponent = new ComponentName(packageContext, cls);
   3035     }
   3036 
   3037     /**
   3038      * Create an intent to launch the main (root) activity of a task.  This
   3039      * is the Intent that is started when the application's is launched from
   3040      * Home.  For anything else that wants to launch an application in the
   3041      * same way, it is important that they use an Intent structured the same
   3042      * way, and can use this function to ensure this is the case.
   3043      *
   3044      * <p>The returned Intent has the given Activity component as its explicit
   3045      * component, {@link #ACTION_MAIN} as its action, and includes the
   3046      * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
   3047      * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
   3048      * to do that through {@link #addFlags(int)} on the returned Intent.
   3049      *
   3050      * @param mainActivity The main activity component that this Intent will
   3051      * launch.
   3052      * @return Returns a newly created Intent that can be used to launch the
   3053      * activity as a main application entry.
   3054      *
   3055      * @see #setClass
   3056      * @see #setComponent
   3057      */
   3058     public static Intent makeMainActivity(ComponentName mainActivity) {
   3059         Intent intent = new Intent(ACTION_MAIN);
   3060         intent.setComponent(mainActivity);
   3061         intent.addCategory(CATEGORY_LAUNCHER);
   3062         return intent;
   3063     }
   3064 
   3065     /**
   3066      * Make an Intent that can be used to re-launch an application's task
   3067      * in its base state.  This is like {@link #makeMainActivity(ComponentName)},
   3068      * but also sets the flags {@link #FLAG_ACTIVITY_NEW_TASK} and
   3069      * {@link #FLAG_ACTIVITY_CLEAR_TASK}.
   3070      *
   3071      * @param mainActivity The activity component that is the root of the
   3072      * task; this is the activity that has been published in the application's
   3073      * manifest as the main launcher icon.
   3074      *
   3075      * @return Returns a newly created Intent that can be used to relaunch the
   3076      * activity's task in its root state.
   3077      */
   3078     public static Intent makeRestartActivityTask(ComponentName mainActivity) {
   3079         Intent intent = makeMainActivity(mainActivity);
   3080         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
   3081                 | Intent.FLAG_ACTIVITY_CLEAR_TASK);
   3082         return intent;
   3083     }
   3084 
   3085     /**
   3086      * Call {@link #parseUri} with 0 flags.
   3087      * @deprecated Use {@link #parseUri} instead.
   3088      */
   3089     @Deprecated
   3090     public static Intent getIntent(String uri) throws URISyntaxException {
   3091         return parseUri(uri, 0);
   3092     }
   3093 
   3094     /**
   3095      * Create an intent from a URI.  This URI may encode the action,
   3096      * category, and other intent fields, if it was returned by
   3097      * {@link #toUri}.  If the Intent was not generate by toUri(), its data
   3098      * will be the entire URI and its action will be ACTION_VIEW.
   3099      *
   3100      * <p>The URI given here must not be relative -- that is, it must include
   3101      * the scheme and full path.
   3102      *
   3103      * @param uri The URI to turn into an Intent.
   3104      * @param flags Additional processing flags.  Either 0 or
   3105      * {@link #URI_INTENT_SCHEME}.
   3106      *
   3107      * @return Intent The newly created Intent object.
   3108      *
   3109      * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
   3110      * it bad (as parsed by the Uri class) or the Intent data within the
   3111      * URI is invalid.
   3112      *
   3113      * @see #toUri
   3114      */
   3115     public static Intent parseUri(String uri, int flags) throws URISyntaxException {
   3116         int i = 0;
   3117         try {
   3118             // Validate intent scheme for if requested.
   3119             if ((flags&URI_INTENT_SCHEME) != 0) {
   3120                 if (!uri.startsWith("intent:")) {
   3121                     Intent intent = new Intent(ACTION_VIEW);
   3122                     try {
   3123                         intent.setData(Uri.parse(uri));
   3124                     } catch (IllegalArgumentException e) {
   3125                         throw new URISyntaxException(uri, e.getMessage());
   3126                     }
   3127                     return intent;
   3128                 }
   3129             }
   3130 
   3131             // simple case
   3132             i = uri.lastIndexOf("#");
   3133             if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
   3134 
   3135             // old format Intent URI
   3136             if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
   3137 
   3138             // new format
   3139             Intent intent = new Intent(ACTION_VIEW);
   3140 
   3141             // fetch data part, if present
   3142             String data = i >= 0 ? uri.substring(0, i) : null;
   3143             String scheme = null;
   3144             i += "#Intent;".length();
   3145 
   3146             // loop over contents of Intent, all name=value;
   3147             while (!uri.startsWith("end", i)) {
   3148                 int eq = uri.indexOf('=', i);
   3149                 int semi = uri.indexOf(';', eq);
   3150                 String value = Uri.decode(uri.substring(eq + 1, semi));
   3151 
   3152                 // action
   3153                 if (uri.startsWith("action=", i)) {
   3154                     intent.setAction(value);
   3155                 }
   3156 
   3157                 // categories
   3158                 else if (uri.startsWith("category=", i)) {
   3159                     intent.addCategory(value);
   3160                 }
   3161 
   3162                 // type
   3163                 else if (uri.startsWith("type=", i)) {
   3164                     intent.mType = value;
   3165                 }
   3166 
   3167                 // launch flags
   3168                 else if (uri.startsWith("launchFlags=", i)) {
   3169                     intent.mFlags = Integer.decode(value).intValue();
   3170                 }
   3171 
   3172                 // package
   3173                 else if (uri.startsWith("package=", i)) {
   3174                     intent.mPackage = value;
   3175                 }
   3176 
   3177                 // component
   3178                 else if (uri.startsWith("component=", i)) {
   3179                     intent.mComponent = ComponentName.unflattenFromString(value);
   3180                 }
   3181 
   3182                 // scheme
   3183                 else if (uri.startsWith("scheme=", i)) {
   3184                     scheme = value;
   3185                 }
   3186 
   3187                 // source bounds
   3188                 else if (uri.startsWith("sourceBounds=", i)) {
   3189                     intent.mSourceBounds = Rect.unflattenFromString(value);
   3190                 }
   3191 
   3192                 // extra
   3193                 else {
   3194                     String key = Uri.decode(uri.substring(i + 2, eq));
   3195                     // create Bundle if it doesn't already exist
   3196                     if (intent.mExtras == null) intent.mExtras = new Bundle();
   3197                     Bundle b = intent.mExtras;
   3198                     // add EXTRA
   3199                     if      (uri.startsWith("S.", i)) b.putString(key, value);
   3200                     else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
   3201                     else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
   3202                     else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
   3203                     else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
   3204                     else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
   3205                     else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
   3206                     else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
   3207                     else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
   3208                     else throw new URISyntaxException(uri, "unknown EXTRA type", i);
   3209                 }
   3210 
   3211                 // move to the next item
   3212                 i = semi + 1;
   3213             }
   3214 
   3215             if (data != null) {
   3216                 if (data.startsWith("intent:")) {
   3217                     data = data.substring(7);
   3218                     if (scheme != null) {
   3219                         data = scheme + ':' + data;
   3220                     }
   3221                 }
   3222 
   3223                 if (data.length() > 0) {
   3224                     try {
   3225                         intent.mData = Uri.parse(data);
   3226                     } catch (IllegalArgumentException e) {
   3227                         throw new URISyntaxException(uri, e.getMessage());
   3228                     }
   3229                 }
   3230             }
   3231 
   3232             return intent;
   3233 
   3234         } catch (IndexOutOfBoundsException e) {
   3235             throw new URISyntaxException(uri, "illegal Intent URI format", i);
   3236         }
   3237     }
   3238 
   3239     public static Intent getIntentOld(String uri) throws URISyntaxException {
   3240         Intent intent;
   3241 
   3242         int i = uri.lastIndexOf('#');
   3243         if (i >= 0) {
   3244             String action = null;
   3245             final int intentFragmentStart = i;
   3246             boolean isIntentFragment = false;
   3247 
   3248             i++;
   3249 
   3250             if (uri.regionMatches(i, "action(", 0, 7)) {
   3251                 isIntentFragment = true;
   3252                 i += 7;
   3253                 int j = uri.indexOf(')', i);
   3254                 action = uri.substring(i, j);
   3255                 i = j + 1;
   3256             }
   3257 
   3258             intent = new Intent(action);
   3259 
   3260             if (uri.regionMatches(i, "categories(", 0, 11)) {
   3261                 isIntentFragment = true;
   3262                 i += 11;
   3263                 int j = uri.indexOf(')', i);
   3264                 while (i < j) {
   3265                     int sep = uri.indexOf('!', i);
   3266                     if (sep < 0) sep = j;
   3267                     if (i < sep) {
   3268                         intent.addCategory(uri.substring(i, sep));
   3269                     }
   3270                     i = sep + 1;
   3271                 }
   3272                 i = j + 1;
   3273             }
   3274 
   3275             if (uri.regionMatches(i, "type(", 0, 5)) {
   3276                 isIntentFragment = true;
   3277                 i += 5;
   3278                 int j = uri.indexOf(')', i);
   3279                 intent.mType = uri.substring(i, j);
   3280                 i = j + 1;
   3281             }
   3282 
   3283             if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
   3284                 isIntentFragment = true;
   3285                 i += 12;
   3286                 int j = uri.indexOf(')', i);
   3287                 intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
   3288                 i = j + 1;
   3289             }
   3290 
   3291             if (uri.regionMatches(i, "component(", 0, 10)) {
   3292                 isIntentFragment = true;
   3293                 i += 10;
   3294                 int j = uri.indexOf(')', i);
   3295                 int sep = uri.indexOf('!', i);
   3296                 if (sep >= 0 && sep < j) {
   3297                     String pkg = uri.substring(i, sep);
   3298                     String cls = uri.substring(sep + 1, j);
   3299                     intent.mComponent = new ComponentName(pkg, cls);
   3300                 }
   3301                 i = j + 1;
   3302             }
   3303 
   3304             if (uri.regionMatches(i, "extras(", 0, 7)) {
   3305                 isIntentFragment = true;
   3306                 i += 7;
   3307 
   3308                 final int closeParen = uri.indexOf(')', i);
   3309                 if (closeParen == -1) throw new URISyntaxException(uri,
   3310                         "EXTRA missing trailing ')'", i);
   3311 
   3312                 while (i < closeParen) {
   3313                     // fetch the key value
   3314                     int j = uri.indexOf('=', i);
   3315                     if (j <= i + 1 || i >= closeParen) {
   3316                         throw new URISyntaxException(uri, "EXTRA missing '='", i);
   3317                     }
   3318                     char type = uri.charAt(i);
   3319                     i++;
   3320                     String key = uri.substring(i, j);
   3321                     i = j + 1;
   3322 
   3323                     // get type-value
   3324                     j = uri.indexOf('!', i);
   3325                     if (j == -1 || j >= closeParen) j = closeParen;
   3326                     if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
   3327                     String value = uri.substring(i, j);
   3328                     i = j;
   3329 
   3330                     // create Bundle if it doesn't already exist
   3331                     if (intent.mExtras == null) intent.mExtras = new Bundle();
   3332 
   3333                     // add item to bundle
   3334                     try {
   3335                         switch (type) {
   3336                             case 'S':
   3337                                 intent.mExtras.putString(key, Uri.decode(value));
   3338                                 break;
   3339                             case 'B':
   3340                                 intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
   3341                                 break;
   3342                             case 'b':
   3343                                 intent.mExtras.putByte(key, Byte.parseByte(value));
   3344                                 break;
   3345                             case 'c':
   3346                                 intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
   3347                                 break;
   3348                             case 'd':
   3349                                 intent.mExtras.putDouble(key, Double.parseDouble(value));
   3350                                 break;
   3351                             case 'f':
   3352                                 intent.mExtras.putFloat(key, Float.parseFloat(value));
   3353                                 break;
   3354                             case 'i':
   3355                                 intent.mExtras.putInt(key, Integer.parseInt(value));
   3356                                 break;
   3357                             case 'l':
   3358                                 intent.mExtras.putLong(key, Long.parseLong(value));
   3359                                 break;
   3360                             case 's':
   3361                                 intent.mExtras.putShort(key, Short.parseShort(value));
   3362                                 break;
   3363                             default:
   3364                                 throw new URISyntaxException(uri, "EXTRA has unknown type", i);
   3365                         }
   3366                     } catch (NumberFormatException e) {
   3367                         throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
   3368                     }
   3369 
   3370                     char ch = uri.charAt(i);
   3371                     if (ch == ')') break;
   3372                     if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
   3373                     i++;
   3374                 }
   3375             }
   3376 
   3377             if (isIntentFragment) {
   3378                 intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
   3379             } else {
   3380                 intent.mData = Uri.parse(uri);
   3381             }
   3382 
   3383             if (intent.mAction == null) {
   3384                 // By default, if no action is specified, then use VIEW.
   3385                 intent.mAction = ACTION_VIEW;
   3386             }
   3387 
   3388         } else {
   3389             intent = new Intent(ACTION_VIEW, Uri.parse(uri));
   3390         }
   3391 
   3392         return intent;
   3393     }
   3394 
   3395     /**
   3396      * Retrieve the general action to be performed, such as
   3397      * {@link #ACTION_VIEW}.  The action describes the general way the rest of
   3398      * the information in the intent should be interpreted -- most importantly,
   3399      * what to do with the data returned by {@link #getData}.
   3400      *
   3401      * @return The action of this intent or null if none is specified.
   3402      *
   3403      * @see #setAction
   3404      */
   3405     public String getAction() {
   3406         return mAction;
   3407     }
   3408 
   3409     /**
   3410      * Retrieve data this intent is operating on.  This URI specifies the name
   3411      * of the data; often it uses the content: scheme, specifying data in a
   3412      * content provider.  Other schemes may be handled by specific activities,
   3413      * such as http: by the web browser.
   3414      *
   3415      * @return The URI of the data this intent is targeting or null.
   3416      *
   3417      * @see #getScheme
   3418      * @see #setData
   3419      */
   3420     public Uri getData() {
   3421         return mData;
   3422     }
   3423 
   3424     /**
   3425      * The same as {@link #getData()}, but returns the URI as an encoded
   3426      * String.
   3427      */
   3428     public String getDataString() {
   3429         return mData != null ? mData.toString() : null;
   3430     }
   3431 
   3432     /**
   3433      * Return the scheme portion of the intent's data.  If the data is null or
   3434      * does not include a scheme, null is returned.  Otherwise, the scheme
   3435      * prefix without the final ':' is returned, i.e. "http".
   3436      *
   3437      * <p>This is the same as calling getData().getScheme() (and checking for
   3438      * null data).
   3439      *
   3440      * @return The scheme of this intent.
   3441      *
   3442      * @see #getData
   3443      */
   3444     public String getScheme() {
   3445         return mData != null ? mData.getScheme() : null;
   3446     }
   3447 
   3448     /**
   3449      * Retrieve any explicit MIME type included in the intent.  This is usually
   3450      * null, as the type is determined by the intent data.
   3451      *
   3452      * @return If a type was manually set, it is returned; else null is
   3453      *         returned.
   3454      *
   3455      * @see #resolveType(ContentResolver)
   3456      * @see #setType
   3457      */
   3458     public String getType() {
   3459         return mType;
   3460     }
   3461 
   3462     /**
   3463      * Return the MIME data type of this intent.  If the type field is
   3464      * explicitly set, that is simply returned.  Otherwise, if the data is set,
   3465      * the type of that data is returned.  If neither fields are set, a null is
   3466      * returned.
   3467      *
   3468      * @return The MIME type of this intent.
   3469      *
   3470      * @see #getType
   3471      * @see #resolveType(ContentResolver)
   3472      */
   3473     public String resolveType(Context context) {
   3474         return resolveType(context.getContentResolver());
   3475     }
   3476 
   3477     /**
   3478      * Return the MIME data type of this intent.  If the type field is
   3479      * explicitly set, that is simply returned.  Otherwise, if the data is set,
   3480      * the type of that data is returned.  If neither fields are set, a null is
   3481      * returned.
   3482      *
   3483      * @param resolver A ContentResolver that can be used to determine the MIME
   3484      *                 type of the intent's data.
   3485      *
   3486      * @return The MIME type of this intent.
   3487      *
   3488      * @see #getType
   3489      * @see #resolveType(Context)
   3490      */
   3491     public String resolveType(ContentResolver resolver) {
   3492         if (mType != null) {
   3493             return mType;
   3494         }
   3495         if (mData != null) {
   3496             if ("content".equals(mData.getScheme())) {
   3497                 return resolver.getType(mData);
   3498             }
   3499         }
   3500         return null;
   3501     }
   3502 
   3503     /**
   3504      * Return the MIME data type of this intent, only if it will be needed for
   3505      * intent resolution.  This is not generally useful for application code;
   3506      * it is used by the frameworks for communicating with back-end system
   3507      * services.
   3508      *
   3509      * @param resolver A ContentResolver that can be used to determine the MIME
   3510      *                 type of the intent's data.
   3511      *
   3512      * @return The MIME type of this intent, or null if it is unknown or not
   3513      *         needed.
   3514      */
   3515     public String resolveTypeIfNeeded(ContentResolver resolver) {
   3516         if (mComponent != null) {
   3517             return mType;
   3518         }
   3519         return resolveType(resolver);
   3520     }
   3521 
   3522     /**
   3523      * Check if an category exists in the intent.
   3524      *
   3525      * @param category The category to check.
   3526      *
   3527      * @return boolean True if the intent contains the category, else false.
   3528      *
   3529      * @see #getCategories
   3530      * @see #addCategory
   3531      */
   3532     public boolean hasCategory(String category) {
   3533         return mCategories != null && mCategories.contains(category);
   3534     }
   3535 
   3536     /**
   3537      * Return the set of all categories in the intent.  If there are no categories,
   3538      * returns NULL.
   3539      *
   3540      * @return Set The set of categories you can examine.  Do not modify!
   3541      *
   3542      * @see #hasCategory
   3543      * @see #addCategory
   3544      */
   3545     public Set<String> getCategories() {
   3546         return mCategories;
   3547     }
   3548 
   3549     /**
   3550      * Sets the ClassLoader that will be used when unmarshalling
   3551      * any Parcelable values from the extras of this Intent.
   3552      *
   3553      * @param loader a ClassLoader, or null to use the default loader
   3554      * at the time of unmarshalling.
   3555      */
   3556     public void setExtrasClassLoader(ClassLoader loader) {
   3557         if (mExtras != null) {
   3558             mExtras.setClassLoader(loader);
   3559         }
   3560     }
   3561 
   3562     /**
   3563      * Returns true if an extra value is associated with the given name.
   3564      * @param name the extra's name
   3565      * @return true if the given extra is present.
   3566      */
   3567     public boolean hasExtra(String name) {
   3568         return mExtras != null && mExtras.containsKey(name);
   3569     }
   3570 
   3571     /**
   3572      * Returns true if the Intent's extras contain a parcelled file descriptor.
   3573      * @return true if the Intent contains a parcelled file descriptor.
   3574      */
   3575     public boolean hasFileDescriptors() {
   3576         return mExtras != null && mExtras.hasFileDescriptors();
   3577     }
   3578 
   3579     /** @hide */
   3580     public void setAllowFds(boolean allowFds) {
   3581         if (mExtras != null) {
   3582             mExtras.setAllowFds(allowFds);
   3583         }
   3584     }
   3585 
   3586     /**
   3587      * Retrieve extended data from the intent.
   3588      *
   3589      * @param name The name of the desired item.
   3590      *
   3591      * @return the value of an item that previously added with putExtra()
   3592      * or null if none was found.
   3593      *
   3594      * @deprecated
   3595      * @hide
   3596      */
   3597     @Deprecated
   3598     public Object getExtra(String name) {
   3599         return getExtra(name, null);
   3600     }
   3601 
   3602     /**
   3603      * Retrieve extended data from the intent.
   3604      *
   3605      * @param name The name of the desired item.
   3606      * @param defaultValue the value to be returned if no value of the desired
   3607      * type is stored with the given name.
   3608      *
   3609      * @return the value of an item that previously added with putExtra()
   3610      * or the default value if none was found.
   3611      *
   3612      * @see #putExtra(String, boolean)
   3613      */
   3614     public boolean getBooleanExtra(String name, boolean defaultValue) {
   3615         return mExtras == null ? defaultValue :
   3616             mExtras.getBoolean(name, defaultValue);
   3617     }
   3618 
   3619     /**
   3620      * Retrieve extended data from the intent.
   3621      *
   3622      * @param name The name of the desired item.
   3623      * @param defaultValue the value to be returned if no value of the desired
   3624      * type is stored with the given name.
   3625      *
   3626      * @return the value of an item that previously added with putExtra()
   3627      * or the default value if none was found.
   3628      *
   3629      * @see #putExtra(String, byte)
   3630      */
   3631     public byte getByteExtra(String name, byte defaultValue) {
   3632         return mExtras == null ? defaultValue :
   3633             mExtras.getByte(name, defaultValue);
   3634     }
   3635 
   3636     /**
   3637      * Retrieve extended data from the intent.
   3638      *
   3639      * @param name The name of the desired item.
   3640      * @param defaultValue the value to be returned if no value of the desired
   3641      * type is stored with the given name.
   3642      *
   3643      * @return the value of an item that previously added with putExtra()
   3644      * or the default value if none was found.
   3645      *
   3646      * @see #putExtra(String, short)
   3647      */
   3648     public short getShortExtra(String name, short defaultValue) {
   3649         return mExtras == null ? defaultValue :
   3650             mExtras.getShort(name, defaultValue);
   3651     }
   3652 
   3653     /**
   3654      * Retrieve extended data from the intent.
   3655      *
   3656      * @param name The name of the desired item.
   3657      * @param defaultValue the value to be returned if no value of the desired
   3658      * type is stored with the given name.
   3659      *
   3660      * @return the value of an item that previously added with putExtra()
   3661      * or the default value if none was found.
   3662      *
   3663      * @see #putExtra(String, char)
   3664      */
   3665     public char getCharExtra(String name, char defaultValue) {
   3666         return mExtras == null ? defaultValue :
   3667             mExtras.getChar(name, defaultValue);
   3668     }
   3669 
   3670     /**
   3671      * Retrieve extended data from the intent.
   3672      *
   3673      * @param name The name of the desired item.
   3674      * @param defaultValue the value to be returned if no value of the desired
   3675      * type is stored with the given name.
   3676      *
   3677      * @return the value of an item that previously added with putExtra()
   3678      * or the default value if none was found.
   3679      *
   3680      * @see #putExtra(String, int)
   3681      */
   3682     public int getIntExtra(String name, int defaultValue) {
   3683         return mExtras == null ? defaultValue :
   3684             mExtras.getInt(name, defaultValue);
   3685     }
   3686 
   3687     /**
   3688      * Retrieve extended data from the intent.
   3689      *
   3690      * @param name The name of the desired item.
   3691      * @param defaultValue the value to be returned if no value of the desired
   3692      * type is stored with the given name.
   3693      *
   3694      * @return the value of an item that previously added with putExtra()
   3695      * or the default value if none was found.
   3696      *
   3697      * @see #putExtra(String, long)
   3698      */
   3699     public long getLongExtra(String name, long defaultValue) {
   3700         return mExtras == null ? defaultValue :
   3701             mExtras.getLong(name, defaultValue);
   3702     }
   3703 
   3704     /**
   3705      * Retrieve extended data from the intent.
   3706      *
   3707      * @param name The name of the desired item.
   3708      * @param defaultValue the value to be returned if no value of the desired
   3709      * type is stored with the given name.
   3710      *
   3711      * @return the value of an item that previously added with putExtra(),
   3712      * or the default value if no such item is present
   3713      *
   3714      * @see #putExtra(String, float)
   3715      */
   3716     public float getFloatExtra(String name, float defaultValue) {
   3717         return mExtras == null ? defaultValue :
   3718             mExtras.getFloat(name, defaultValue);
   3719     }
   3720 
   3721     /**
   3722      * Retrieve extended data from the intent.
   3723      *
   3724      * @param name The name of the desired item.
   3725      * @param defaultValue the value to be returned if no value of the desired
   3726      * type is stored with the given name.
   3727      *
   3728      * @return the value of an item that previously added with putExtra()
   3729      * or the default value if none was found.
   3730      *
   3731      * @see #putExtra(String, double)
   3732      */
   3733     public double getDoubleExtra(String name, double defaultValue) {
   3734         return mExtras == null ? defaultValue :
   3735             mExtras.getDouble(name, defaultValue);
   3736     }
   3737 
   3738     /**
   3739      * Retrieve extended data from the intent.
   3740      *
   3741      * @param name The name of the desired item.
   3742      *
   3743      * @return the value of an item that previously added with putExtra()
   3744      * or null if no String value was found.
   3745      *
   3746      * @see #putExtra(String, String)
   3747      */
   3748     public String getStringExtra(String name) {
   3749         return mExtras == null ? null : mExtras.getString(name);
   3750     }
   3751 
   3752     /**
   3753      * Retrieve extended data from the intent.
   3754      *
   3755      * @param name The name of the desired item.
   3756      *
   3757      * @return the value of an item that previously added with putExtra()
   3758      * or null if no CharSequence value was found.
   3759      *
   3760      * @see #putExtra(String, CharSequence)
   3761      */
   3762     public CharSequence getCharSequenceExtra(String name) {
   3763         return mExtras == null ? null : mExtras.getCharSequence(name);
   3764     }
   3765 
   3766     /**
   3767      * Retrieve extended data from the intent.
   3768      *
   3769      * @param name The name of the desired item.
   3770      *
   3771      * @return the value of an item that previously added with putExtra()
   3772      * or null if no Parcelable value was found.
   3773      *
   3774      * @see #putExtra(String, Parcelable)
   3775      */
   3776     public <T extends Parcelable> T getParcelableExtra(String name) {
   3777         return mExtras == null ? null : mExtras.<T>getParcelable(name);
   3778     }
   3779 
   3780     /**
   3781      * Retrieve extended data from the intent.
   3782      *
   3783      * @param name The name of the desired item.
   3784      *
   3785      * @return the value of an item that previously added with putExtra()
   3786      * or null if no Parcelable[] value was found.
   3787      *
   3788      * @see #putExtra(String, Parcelable[])
   3789      */
   3790     public Parcelable[] getParcelableArrayExtra(String name) {
   3791         return mExtras == null ? null : mExtras.getParcelableArray(name);
   3792     }
   3793 
   3794     /**
   3795      * Retrieve extended data from the intent.
   3796      *
   3797      * @param name The name of the desired item.
   3798      *
   3799      * @return the value of an item that previously added with putExtra()
   3800      * or null if no ArrayList<Parcelable> value was found.
   3801      *
   3802      * @see #putParcelableArrayListExtra(String, ArrayList)
   3803      */
   3804     public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
   3805         return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
   3806     }
   3807 
   3808     /**
   3809      * Retrieve extended data from the intent.
   3810      *
   3811      * @param name The name of the desired item.
   3812      *
   3813      * @return the value of an item that previously added with putExtra()
   3814      * or null if no Serializable value was found.
   3815      *
   3816      * @see #putExtra(String, Serializable)
   3817      */
   3818     public Serializable getSerializableExtra(String name) {
   3819         return mExtras == null ? null : mExtras.getSerializable(name);
   3820     }
   3821 
   3822     /**
   3823      * Retrieve extended data from the intent.
   3824      *
   3825      * @param name The name of the desired item.
   3826      *
   3827      * @return the value of an item that previously added with putExtra()
   3828      * or null if no ArrayList<Integer> value was found.
   3829      *
   3830      * @see #putIntegerArrayListExtra(String, ArrayList)
   3831      */
   3832     public ArrayList<Integer> getIntegerArrayListExtra(String name) {
   3833         return mExtras == null ? null : mExtras.getIntegerArrayList(name);
   3834     }
   3835 
   3836     /**
   3837      * Retrieve extended data from the intent.
   3838      *
   3839      * @param name The name of the desired item.
   3840      *
   3841      * @return the value of an item that previously added with putExtra()
   3842      * or null if no ArrayList<String> value was found.
   3843      *
   3844      * @see #putStringArrayListExtra(String, ArrayList)
   3845      */
   3846     public ArrayList<String> getStringArrayListExtra(String name) {
   3847         return mExtras == null ? null : mExtras.getStringArrayList(name);
   3848     }
   3849 
   3850     /**
   3851      * Retrieve extended data from the intent.
   3852      *
   3853      * @param name The name of the desired item.
   3854      *
   3855      * @return the value of an item that previously added with putExtra()
   3856      * or null if no ArrayList<CharSequence> value was found.
   3857      *
   3858      * @see #putCharSequenceArrayListExtra(String, ArrayList)
   3859      */
   3860     public ArrayList<CharSequence> getCharSequenceArrayListExtra(String name) {
   3861         return mExtras == null ? null : mExtras.getCharSequenceArrayList(name);
   3862     }
   3863 
   3864     /**
   3865      * Retrieve extended data from the intent.
   3866      *
   3867      * @param name The name of the desired item.
   3868      *
   3869      * @return the value of an item that previously added with putExtra()
   3870      * or null if no boolean array value was found.
   3871      *
   3872      * @see #putExtra(String, boolean[])
   3873      */
   3874     public boolean[] getBooleanArrayExtra(String name) {
   3875         return mExtras == null ? null : mExtras.getBooleanArray(name);
   3876     }
   3877 
   3878     /**
   3879      * Retrieve extended data from the intent.
   3880      *
   3881      * @param name The name of the desired item.
   3882      *
   3883      * @return the value of an item that previously added with putExtra()
   3884      * or null if no byte array value was found.
   3885      *
   3886      * @see #putExtra(String, byte[])
   3887      */
   3888     public byte[] getByteArrayExtra(String name) {
   3889         return mExtras == null ? null : mExtras.getByteArray(name);
   3890     }
   3891 
   3892     /**
   3893      * Retrieve extended data from the intent.
   3894      *
   3895      * @param name The name of the desired item.
   3896      *
   3897      * @return the value of an item that previously added with putExtra()
   3898      * or null if no short array value was found.
   3899      *
   3900      * @see #putExtra(String, short[])
   3901      */
   3902     public short[] getShortArrayExtra(String name) {
   3903         return mExtras == null ? null : mExtras.getShortArray(name);
   3904     }
   3905 
   3906     /**
   3907      * Retrieve extended data from the intent.
   3908      *
   3909      * @param name The name of the desired item.
   3910      *
   3911      * @return the value of an item that previously added with putExtra()
   3912      * or null if no char array value was found.
   3913      *
   3914      * @see #putExtra(String, char[])
   3915      */
   3916     public char[] getCharArrayExtra(String name) {
   3917         return mExtras == null ? null : mExtras.getCharArray(name);
   3918     }
   3919 
   3920     /**
   3921      * Retrieve extended data from the intent.
   3922      *
   3923      * @param name The name of the desired item.
   3924      *
   3925      * @return the value of an item that previously added with putExtra()
   3926      * or null if no int array value was found.
   3927      *
   3928      * @see #putExtra(String, int[])
   3929      */
   3930     public int[] getIntArrayExtra(String name) {
   3931         return mExtras == null ? null : mExtras.getIntArray(name);
   3932     }
   3933 
   3934     /**
   3935      * Retrieve extended data from the intent.
   3936      *
   3937      * @param name The name of the desired item.
   3938      *
   3939      * @return the value of an item that previously added with putExtra()
   3940      * or null if no long array value was found.
   3941      *
   3942      * @see #putExtra(String, long[])
   3943      */
   3944     public long[] getLongArrayExtra(String name) {
   3945         return mExtras == null ? null : mExtras.getLongArray(name);
   3946     }
   3947 
   3948     /**
   3949      * Retrieve extended data from the intent.
   3950      *
   3951      * @param name The name of the desired item.
   3952      *
   3953      * @return the value of an item that previously added with putExtra()
   3954      * or null if no float array value was found.
   3955      *
   3956      * @see #putExtra(String, float[])
   3957      */
   3958     public float[] getFloatArrayExtra(String name) {
   3959         return mExtras == null ? null : mExtras.getFloatArray(name);
   3960     }
   3961 
   3962     /**
   3963      * Retrieve extended data from the intent.
   3964      *
   3965      * @param name The name of the desired item.
   3966      *
   3967      * @return the value of an item that previously added with putExtra()
   3968      * or null if no double array value was found.
   3969      *
   3970      * @see #putExtra(String, double[])
   3971      */
   3972     public double[] getDoubleArrayExtra(String name) {
   3973         return mExtras == null ? null : mExtras.getDoubleArray(name);
   3974     }
   3975 
   3976     /**
   3977      * Retrieve extended data from the intent.
   3978      *
   3979      * @param name The name of the desired item.
   3980      *
   3981      * @return the value of an item that previously added with putExtra()
   3982      * or null if no String array value was found.
   3983      *
   3984      * @see #putExtra(String, String[])
   3985      */
   3986     public String[] getStringArrayExtra(String name) {
   3987         return mExtras == null ? null : mExtras.getStringArray(name);
   3988     }
   3989 
   3990     /**
   3991      * Retrieve extended data from the intent.
   3992      *
   3993      * @param name The name of the desired item.
   3994      *
   3995      * @return the value of an item that previously added with putExtra()
   3996      * or null if no CharSequence array value was found.
   3997      *
   3998      * @see #putExtra(String, CharSequence[])
   3999      */
   4000     public CharSequence[] getCharSequenceArrayExtra(String name) {
   4001         return mExtras == null ? null : mExtras.getCharSequenceArray(name);
   4002     }
   4003 
   4004     /**
   4005      * Retrieve extended data from the intent.
   4006      *
   4007      * @param name The name of the desired item.
   4008      *
   4009      * @return the value of an item that previously added with putExtra()
   4010      * or null if no Bundle value was found.
   4011      *
   4012      * @see #putExtra(String, Bundle)
   4013      */
   4014     public Bundle getBundleExtra(String name) {
   4015         return mExtras == null ? null : mExtras.getBundle(name);
   4016     }
   4017 
   4018     /**
   4019      * Retrieve extended data from the intent.
   4020      *
   4021      * @param name The name of the desired item.
   4022      *
   4023      * @return the value of an item that previously added with putExtra()
   4024      * or null if no IBinder value was found.
   4025      *
   4026      * @see #putExtra(String, IBinder)
   4027      *
   4028      * @deprecated
   4029      * @hide
   4030      */
   4031     @Deprecated
   4032     public IBinder getIBinderExtra(String name) {
   4033         return mExtras == null ? null : mExtras.getIBinder(name);
   4034     }
   4035 
   4036     /**
   4037      * Retrieve extended data from the intent.
   4038      *
   4039      * @param name The name of the desired item.
   4040      * @param defaultValue The default value to return in case no item is
   4041      * associated with the key 'name'
   4042      *
   4043      * @return the value of an item that previously added with putExtra()
   4044      * or defaultValue if none was found.
   4045      *
   4046      * @see #putExtra
   4047      *
   4048      * @deprecated
   4049      * @hide
   4050      */
   4051     @Deprecated
   4052     public Object getExtra(String name, Object defaultValue) {
   4053         Object result = defaultValue;
   4054         if (mExtras != null) {
   4055             Object result2 = mExtras.get(name);
   4056             if (result2 != null) {
   4057                 result = result2;
   4058             }
   4059         }
   4060 
   4061         return result;
   4062     }
   4063 
   4064     /**
   4065      * Retrieves a map of extended data from the intent.
   4066      *
   4067      * @return the map of all extras previously added with putExtra(),
   4068      * or null if none have been added.
   4069      */
   4070     public Bundle getExtras() {
   4071         return (mExtras != null)
   4072                 ? new Bundle(mExtras)
   4073                 : null;
   4074     }
   4075 
   4076     /**
   4077      * Retrieve any special flags associated with this intent.  You will
   4078      * normally just set them with {@link #setFlags} and let the system
   4079      * take the appropriate action with them.
   4080      *
   4081      * @return int The currently set flags.
   4082      *
   4083      * @see #setFlags
   4084      */
   4085     public int getFlags() {
   4086         return mFlags;
   4087     }
   4088 
   4089     /** @hide */
   4090     public boolean isExcludingStopped() {
   4091         return (mFlags&(FLAG_EXCLUDE_STOPPED_PACKAGES|FLAG_INCLUDE_STOPPED_PACKAGES))
   4092                 == FLAG_EXCLUDE_STOPPED_PACKAGES;
   4093     }
   4094 
   4095     /**
   4096      * Retrieve the application package name this Intent is limited to.  When
   4097      * resolving an Intent, if non-null this limits the resolution to only
   4098      * components in the given application package.
   4099      *
   4100      * @return The name of the application package for the Intent.
   4101      *
   4102      * @see #resolveActivity
   4103      * @see #setPackage
   4104      */
   4105     public String getPackage() {
   4106         return mPackage;
   4107     }
   4108 
   4109     /**
   4110      * Retrieve the concrete component associated with the intent.  When receiving
   4111      * an intent, this is the component that was found to best handle it (that is,
   4112      * yourself) and will always be non-null; in all other cases it will be
   4113      * null unless explicitly set.
   4114      *
   4115      * @return The name of the application component to handle the intent.
   4116      *
   4117      * @see #resolveActivity
   4118      * @see #setComponent
   4119      */
   4120     public ComponentName getComponent() {
   4121         return mComponent;
   4122     }
   4123 
   4124     /**
   4125      * Get the bounds of the sender of this intent, in screen coordinates.  This can be
   4126      * used as a hint to the receiver for animations and the like.  Null means that there
   4127      * is no source bounds.
   4128      */
   4129     public Rect getSourceBounds() {
   4130         return mSourceBounds;
   4131     }
   4132 
   4133     /**
   4134      * Return the Activity component that should be used to handle this intent.
   4135      * The appropriate component is determined based on the information in the
   4136      * intent, evaluated as follows:
   4137      *
   4138      * <p>If {@link #getComponent} returns an explicit class, that is returned
   4139      * without any further consideration.
   4140      *
   4141      * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
   4142      * category to be considered.
   4143      *
   4144      * <p>If {@link #getAction} is non-NULL, the activity must handle this
   4145      * action.
   4146      *
   4147      * <p>If {@link #resolveType} returns non-NULL, the activity must handle
   4148      * this type.
   4149      *
   4150      * <p>If {@link #addCategory} has added any categories, the activity must
   4151      * handle ALL of the categories specified.
   4152      *
   4153      * <p>If {@link #getPackage} is non-NULL, only activity components in
   4154      * that application package will be considered.
   4155      *
   4156      * <p>If there are no activities that satisfy all of these conditions, a
   4157      * null string is returned.
   4158      *
   4159      * <p>If multiple activities are found to satisfy the intent, the one with
   4160      * the highest priority will be used.  If there are multiple activities
   4161      * with the same priority, the system will either pick the best activity
   4162      * based on user preference, or resolve to a system class that will allow
   4163      * the user to pick an activity and forward from there.
   4164      *
   4165      * <p>This method is implemented simply by calling
   4166      * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
   4167      * true.</p>
   4168      * <p> This API is called for you as part of starting an activity from an
   4169      * intent.  You do not normally need to call it yourself.</p>
   4170      *
   4171      * @param pm The package manager with which to resolve the Intent.
   4172      *
   4173      * @return Name of the component implementing an activity that can
   4174      *         display the intent.
   4175      *
   4176      * @see #setComponent
   4177      * @see #getComponent
   4178      * @see #resolveActivityInfo
   4179      */
   4180     public ComponentName resolveActivity(PackageManager pm) {
   4181         if (mComponent != null) {
   4182             return mComponent;
   4183         }
   4184 
   4185         ResolveInfo info = pm.resolveActivity(
   4186             this, PackageManager.MATCH_DEFAULT_ONLY);
   4187         if (info != null) {
   4188             return new ComponentName(
   4189                     info.activityInfo.applicationInfo.packageName,
   4190                     info.activityInfo.name);
   4191         }
   4192 
   4193         return null;
   4194     }
   4195 
   4196     /**
   4197      * Resolve the Intent into an {@link ActivityInfo}
   4198      * describing the activity that should execute the intent.  Resolution
   4199      * follows the same rules as described for {@link #resolveActivity}, but
   4200      * you get back the completely information about the resolved activity
   4201      * instead of just its class name.
   4202      *
   4203      * @param pm The package manager with which to resolve the Intent.
   4204      * @param flags Addition information to retrieve as per
   4205      * {@link PackageManager#getActivityInfo(ComponentName, int)
   4206      * PackageManager.getActivityInfo()}.
   4207      *
   4208      * @return PackageManager.ActivityInfo
   4209      *
   4210      * @see #resolveActivity
   4211      */
   4212     public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
   4213         ActivityInfo ai = null;
   4214         if (mComponent != null) {
   4215             try {
   4216                 ai = pm.getActivityInfo(mComponent, flags);
   4217             } catch (PackageManager.NameNotFoundException e) {
   4218                 // ignore
   4219             }
   4220         } else {
   4221             ResolveInfo info = pm.resolveActivity(
   4222                 this, PackageManager.MATCH_DEFAULT_ONLY | flags);
   4223             if (info != null) {
   4224                 ai = info.activityInfo;
   4225             }
   4226         }
   4227 
   4228         return ai;
   4229     }
   4230 
   4231     /**
   4232      * Set the general action to be performed.
   4233      *
   4234      * @param action An action name, such as ACTION_VIEW.  Application-specific
   4235      *               actions should be prefixed with the vendor's package name.
   4236      *
   4237      * @return Returns the same Intent object, for chaining multiple calls
   4238      * into a single statement.
   4239      *
   4240      * @see #getAction
   4241      */
   4242     public Intent setAction(String action) {
   4243         mAction = action != null ? action.intern() : null;
   4244         return this;
   4245     }
   4246 
   4247     /**
   4248      * Set the data this intent is operating on.  This method automatically
   4249      * clears any type that was previously set by {@link #setType}.
   4250      *
   4251      * <p><em>Note: scheme and host name matching in the Android framework is
   4252      * case-sensitive, unlike the formal RFC.  As a result,
   4253      * you should always ensure that you write your Uri with these elements
   4254      * using lower case letters, and normalize any Uris you receive from
   4255      * outside of Android to ensure the scheme and host is lower case.</em></p>
   4256      *
   4257      * @param data The URI of the data this intent is now targeting.
   4258      *
   4259      * @return Returns the same Intent object, for chaining multiple calls
   4260      * into a single statement.
   4261      *
   4262      * @see #getData
   4263      * @see #setType
   4264      * @see #setDataAndType
   4265      */
   4266     public Intent setData(Uri data) {
   4267         mData = data;
   4268         mType = null;
   4269         return this;
   4270     }
   4271 
   4272     /**
   4273      * Set an explicit MIME data type.  This is used to create intents that
   4274      * only specify a type and not data, for example to indicate the type of
   4275      * data to return.  This method automatically clears any data that was
   4276      * previously set by {@link #setData}.
   4277      *
   4278      * <p><em>Note: MIME type matching in the Android framework is
   4279      * case-sensitive, unlike formal RFC MIME types.  As a result,
   4280      * you should always write your MIME types with lower case letters,
   4281      * and any MIME types you receive from outside of Android should be
   4282      * converted to lower case before supplying them here.</em></p>
   4283      *
   4284      * @param type The MIME type of the data being handled by this intent.
   4285      *
   4286      * @return Returns the same Intent object, for chaining multiple calls
   4287      * into a single statement.
   4288      *
   4289      * @see #getType
   4290      * @see #setData
   4291      * @see #setDataAndType
   4292      */
   4293     public Intent setType(String type) {
   4294         mData = null;
   4295         mType = type;
   4296         return this;
   4297     }
   4298 
   4299     /**
   4300      * (Usually optional) Set the data for the intent along with an explicit
   4301      * MIME data type.  This method should very rarely be used -- it allows you
   4302      * to override the MIME type that would ordinarily be inferred from the
   4303      * data with your own type given here.
   4304      *
   4305      * <p><em>Note: MIME type, Uri scheme, and host name matching in the
   4306      * Android framework is case-sensitive, unlike the formal RFC definitions.
   4307      * As a result, you should always write these elements with lower case letters,
   4308      * and normalize any MIME types or Uris you receive from
   4309      * outside of Android to ensure these elements are lower case before
   4310      * supplying them here.</em></p>
   4311      *
   4312      * @param data The URI of the data this intent is now targeting.
   4313      * @param type The MIME type of the data being handled by this intent.
   4314      *
   4315      * @return Returns the same Intent object, for chaining multiple calls
   4316      * into a single statement.
   4317      *
   4318      * @see #setData
   4319      * @see #setType
   4320      */
   4321     public Intent setDataAndType(Uri data, String type) {
   4322         mData = data;
   4323         mType = type;
   4324         return this;
   4325     }
   4326 
   4327     /**
   4328      * Add a new category to the intent.  Categories provide additional detail
   4329      * about the action the intent is perform.  When resolving an intent, only
   4330      * activities that provide <em>all</em> of the requested categories will be
   4331      * used.
   4332      *
   4333      * @param category The desired category.  This can be either one of the
   4334      *               predefined Intent categories, or a custom category in your own
   4335      *               namespace.
   4336      *
   4337      * @return Returns the same Intent object, for chaining multiple calls
   4338      * into a single statement.
   4339      *
   4340      * @see #hasCategory
   4341      * @see #removeCategory
   4342      */
   4343     public Intent addCategory(String category) {
   4344         if (mCategories == null) {
   4345             mCategories = new HashSet<String>();
   4346         }
   4347         mCategories.add(category.intern());
   4348         return this;
   4349     }
   4350 
   4351     /**
   4352      * Remove an category from an intent.
   4353      *
   4354      * @param category The category to remove.
   4355      *
   4356      * @see #addCategory
   4357      */
   4358     public void removeCategory(String category) {
   4359         if (mCategories != null) {
   4360             mCategories.remove(category);
   4361             if (mCategories.size() == 0) {
   4362                 mCategories = null;
   4363             }
   4364         }
   4365     }
   4366 
   4367     /**
   4368      * Add extended data to the intent.  The name must include a package
   4369      * prefix, for example the app com.android.contacts would use names
   4370      * like "com.android.contacts.ShowAll".
   4371      *
   4372      * @param name The name of the extra data, with package prefix.
   4373      * @param value The boolean data value.
   4374      *
   4375      * @return Returns the same Intent object, for chaining multiple calls
   4376      * into a single statement.
   4377      *
   4378      * @see #putExtras
   4379      * @see #removeExtra
   4380      * @see #getBooleanExtra(String, boolean)
   4381      */
   4382     public Intent putExtra(String name, boolean value) {
   4383         if (mExtras == null) {
   4384             mExtras = new Bundle();
   4385         }
   4386         mExtras.putBoolean(name, value);
   4387         return this;
   4388     }
   4389 
   4390     /**
   4391      * Add extended data to the intent.  The name must include a package
   4392      * prefix, for example the app com.android.contacts would use names
   4393      * like "com.android.contacts.ShowAll".
   4394      *
   4395      * @param name The name of the extra data, with package prefix.
   4396      * @param value The byte data value.
   4397      *
   4398      * @return Returns the same Intent object, for chaining multiple calls
   4399      * into a single statement.
   4400      *
   4401      * @see #putExtras
   4402      * @see #removeExtra
   4403      * @see #getByteExtra(String, byte)
   4404      */
   4405     public Intent putExtra(String name, byte value) {
   4406         if (mExtras == null) {
   4407             mExtras = new Bundle();
   4408         }
   4409         mExtras.putByte(name, value);
   4410         return this;
   4411     }
   4412 
   4413     /**
   4414      * Add extended data to the intent.  The name must include a package
   4415      * prefix, for example the app com.android.contacts would use names
   4416      * like "com.android.contacts.ShowAll".
   4417      *
   4418      * @param name The name of the extra data, with package prefix.
   4419      * @param value The char data value.
   4420      *
   4421      * @return Returns the same Intent object, for chaining multiple calls
   4422      * into a single statement.
   4423      *
   4424      * @see #putExtras
   4425      * @see #removeExtra
   4426      * @see #getCharExtra(String, char)
   4427      */
   4428     public Intent putExtra(String name, char value) {
   4429         if (mExtras == null) {
   4430             mExtras = new Bundle();
   4431         }
   4432         mExtras.putChar(name, value);
   4433         return this;
   4434     }
   4435 
   4436     /**
   4437      * Add extended data to the intent.  The name must include a package
   4438      * prefix, for example the app com.android.contacts would use names
   4439      * like "com.android.contacts.ShowAll".
   4440      *
   4441      * @param name The name of the extra data, with package prefix.
   4442      * @param value The short data value.
   4443      *
   4444      * @return Returns the same Intent object, for chaining multiple calls
   4445      * into a single statement.
   4446      *
   4447      * @see #putExtras
   4448      * @see #removeExtra
   4449      * @see #getShortExtra(String, short)
   4450      */
   4451     public Intent putExtra(String name, short value) {
   4452         if (mExtras == null) {
   4453             mExtras = new Bundle();
   4454         }
   4455         mExtras.putShort(name, value);
   4456         return this;
   4457     }
   4458 
   4459     /**
   4460      * Add extended data to the intent.  The name must include a package
   4461      * prefix, for example the app com.android.contacts would use names
   4462      * like "com.android.contacts.ShowAll".
   4463      *
   4464      * @param name The name of the extra data, with package prefix.
   4465      * @param value The integer data value.
   4466      *
   4467      * @return Returns the same Intent object, for chaining multiple calls
   4468      * into a single statement.
   4469      *
   4470      * @see #putExtras
   4471      * @see #removeExtra
   4472      * @see #getIntExtra(String, int)
   4473      */
   4474     public Intent putExtra(String name, int value) {
   4475         if (mExtras == null) {
   4476             mExtras = new Bundle();
   4477         }
   4478         mExtras.putInt(name, value);
   4479         return this;
   4480     }
   4481 
   4482     /**
   4483      * Add extended data to the intent.  The name must include a package
   4484      * prefix, for example the app com.android.contacts would use names
   4485      * like "com.android.contacts.ShowAll".
   4486      *
   4487      * @param name The name of the extra data, with package prefix.
   4488      * @param value The long data value.
   4489      *
   4490      * @return Returns the same Intent object, for chaining multiple calls
   4491      * into a single statement.
   4492      *
   4493      * @see #putExtras
   4494      * @see #removeExtra
   4495      * @see #getLongExtra(String, long)
   4496      */
   4497     public Intent putExtra(String name, long value) {
   4498         if (mExtras == null) {
   4499             mExtras = new Bundle();
   4500         }
   4501         mExtras.putLong(name, value);
   4502         return this;
   4503     }
   4504 
   4505     /**
   4506      * Add extended data to the intent.  The name must include a package
   4507      * prefix, for example the app com.android.contacts would use names
   4508      * like "com.android.contacts.ShowAll".
   4509      *
   4510      * @param name The name of the extra data, with package prefix.
   4511      * @param value The float data value.
   4512      *
   4513      * @return Returns the same Intent object, for chaining multiple calls
   4514      * into a single statement.
   4515      *
   4516      * @see #putExtras
   4517      * @see #removeExtra
   4518      * @see #getFloatExtra(String, float)
   4519      */
   4520     public Intent putExtra(String name, float value) {
   4521         if (mExtras == null) {
   4522             mExtras = new Bundle();
   4523         }
   4524         mExtras.putFloat(name, value);
   4525         return this;
   4526     }
   4527 
   4528     /**
   4529      * Add extended data to the intent.  The name must include a package
   4530      * prefix, for example the app com.android.contacts would use names
   4531      * like "com.android.contacts.ShowAll".
   4532      *
   4533      * @param name The name of the extra data, with package prefix.
   4534      * @param value The double data value.
   4535      *
   4536      * @return Returns the same Intent object, for chaining multiple calls
   4537      * into a single statement.
   4538      *
   4539      * @see #putExtras
   4540      * @see #removeExtra
   4541      * @see #getDoubleExtra(String, double)
   4542      */
   4543     public Intent putExtra(String name, double value) {
   4544         if (mExtras == null) {
   4545             mExtras = new Bundle();
   4546         }
   4547         mExtras.putDouble(name, value);
   4548         return this;
   4549     }
   4550 
   4551     /**
   4552      * Add extended data to the intent.  The name must include a package
   4553      * prefix, for example the app com.android.contacts would use names
   4554      * like "com.android.contacts.ShowAll".
   4555      *
   4556      * @param name The name of the extra data, with package prefix.
   4557      * @param value The String data value.
   4558      *
   4559      * @return Returns the same Intent object, for chaining multiple calls
   4560      * into a single statement.
   4561      *
   4562      * @see #putExtras
   4563      * @see #removeExtra
   4564      * @see #getStringExtra(String)
   4565      */
   4566     public Intent putExtra(String name, String value) {
   4567         if (mExtras == null) {
   4568             mExtras = new Bundle();
   4569         }
   4570         mExtras.putString(name, value);
   4571         return this;
   4572     }
   4573 
   4574     /**
   4575      * Add extended data to the intent.  The name must include a package
   4576      * prefix, for example the app com.android.contacts would use names
   4577      * like "com.android.contacts.ShowAll".
   4578      *
   4579      * @param name The name of the extra data, with package prefix.
   4580      * @param value The CharSequence data value.
   4581      *
   4582      * @return Returns the same Intent object, for chaining multiple calls
   4583      * into a single statement.
   4584      *
   4585      * @see #putExtras
   4586      * @see #removeExtra
   4587      * @see #getCharSequenceExtra(String)
   4588      */
   4589     public Intent putExtra(String name, CharSequence value) {
   4590         if (mExtras == null) {
   4591             mExtras = new Bundle();
   4592         }
   4593         mExtras.putCharSequence(name, value);
   4594         return this;
   4595     }
   4596 
   4597     /**
   4598      * Add extended data to the intent.  The name must include a package
   4599      * prefix, for example the app com.android.contacts would use names
   4600      * like "com.android.contacts.ShowAll".
   4601      *
   4602      * @param name The name of the extra data, with package prefix.
   4603      * @param value The Parcelable data value.
   4604      *
   4605      * @return Returns the same Intent object, for chaining multiple calls
   4606      * into a single statement.
   4607      *
   4608      * @see #putExtras
   4609      * @see #removeExtra
   4610      * @see #getParcelableExtra(String)
   4611      */
   4612     public Intent putExtra(String name, Parcelable value) {
   4613         if (mExtras == null) {
   4614             mExtras = new Bundle();
   4615         }
   4616         mExtras.putParcelable(name, value);
   4617         return this;
   4618     }
   4619 
   4620     /**
   4621      * Add extended data to the intent.  The name must include a package
   4622      * prefix, for example the app com.android.contacts would use names
   4623      * like "com.android.contacts.ShowAll".
   4624      *
   4625      * @param name The name of the extra data, with package prefix.
   4626      * @param value The Parcelable[] data value.
   4627      *
   4628      * @return Returns the same Intent object, for chaining multiple calls
   4629      * into a single statement.
   4630      *
   4631      * @see #putExtras
   4632      * @see #removeExtra
   4633      * @see #getParcelableArrayExtra(String)
   4634      */
   4635     public Intent putExtra(String name, Parcelable[] value) {
   4636         if (mExtras == null) {
   4637             mExtras = new Bundle();
   4638         }
   4639         mExtras.putParcelableArray(name, value);
   4640         return this;
   4641     }
   4642 
   4643     /**
   4644      * Add extended data to the intent.  The name must include a package
   4645      * prefix, for example the app com.android.contacts would use names
   4646      * like "com.android.contacts.ShowAll".
   4647      *
   4648      * @param name The name of the extra data, with package prefix.
   4649      * @param value The ArrayList<Parcelable> data value.
   4650      *
   4651      * @return Returns the same Intent object, for chaining multiple calls
   4652      * into a single statement.
   4653      *
   4654      * @see #putExtras
   4655      * @see #removeExtra
   4656      * @see #getParcelableArrayListExtra(String)
   4657      */
   4658     public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
   4659         if (mExtras == null) {
   4660             mExtras = new Bundle();
   4661         }
   4662         mExtras.putParcelableArrayList(name, value);
   4663         return this;
   4664     }
   4665 
   4666     /**
   4667      * Add extended data to the intent.  The name must include a package
   4668      * prefix, for example the app com.android.contacts would use names
   4669      * like "com.android.contacts.ShowAll".
   4670      *
   4671      * @param name The name of the extra data, with package prefix.
   4672      * @param value The ArrayList<Integer> data value.
   4673      *
   4674      * @return Returns the same Intent object, for chaining multiple calls
   4675      * into a single statement.
   4676      *
   4677      * @see #putExtras
   4678      * @see #removeExtra
   4679      * @see #getIntegerArrayListExtra(String)
   4680      */
   4681     public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
   4682         if (mExtras == null) {
   4683             mExtras = new Bundle();
   4684         }
   4685         mExtras.putIntegerArrayList(name, value);
   4686         return this;
   4687     }
   4688 
   4689     /**
   4690      * Add extended data to the intent.  The name must include a package
   4691      * prefix, for example the app com.android.contacts would use names
   4692      * like "com.android.contacts.ShowAll".
   4693      *
   4694      * @param name The name of the extra data, with package prefix.
   4695      * @param value The ArrayList<String> data value.
   4696      *
   4697      * @return Returns the same Intent object, for chaining multiple calls
   4698      * into a single statement.
   4699      *
   4700      * @see #putExtras
   4701      * @see #removeExtra
   4702      * @see #getStringArrayListExtra(String)
   4703      */
   4704     public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
   4705         if (mExtras == null) {
   4706             mExtras = new Bundle();
   4707         }
   4708         mExtras.putStringArrayList(name, value);
   4709         return this;
   4710     }
   4711 
   4712     /**
   4713      * Add extended data to the intent.  The name must include a package
   4714      * prefix, for example the app com.android.contacts would use names
   4715      * like "com.android.contacts.ShowAll".
   4716      *
   4717      * @param name The name of the extra data, with package prefix.
   4718      * @param value The ArrayList<CharSequence> data value.
   4719      *
   4720      * @return Returns the same Intent object, for chaining multiple calls
   4721      * into a single statement.
   4722      *
   4723      * @see #putExtras
   4724      * @see #removeExtra
   4725      * @see #getCharSequenceArrayListExtra(String)
   4726      */
   4727     public Intent putCharSequenceArrayListExtra(String name, ArrayList<CharSequence> value) {
   4728         if (mExtras == null) {
   4729             mExtras = new Bundle();
   4730         }
   4731         mExtras.putCharSequenceArrayList(name, value);
   4732         return this;
   4733     }
   4734 
   4735     /**
   4736      * Add extended data to the intent.  The name must include a package
   4737      * prefix, for example the app com.android.contacts would use names
   4738      * like "com.android.contacts.ShowAll".
   4739      *
   4740      * @param name The name of the extra data, with package prefix.
   4741      * @param value The Serializable data value.
   4742      *
   4743      * @return Returns the same Intent object, for chaining multiple calls
   4744      * into a single statement.
   4745      *
   4746      * @see #putExtras
   4747      * @see #removeExtra
   4748      * @see #getSerializableExtra(String)
   4749      */
   4750     public Intent putExtra(String name, Serializable value) {
   4751         if (mExtras == null) {
   4752             mExtras = new Bundle();
   4753         }
   4754         mExtras.putSerializable(name, value);
   4755         return this;
   4756     }
   4757 
   4758     /**
   4759      * Add extended data to the intent.  The name must include a package
   4760      * prefix, for example the app com.android.contacts would use names
   4761      * like "com.android.contacts.ShowAll".
   4762      *
   4763      * @param name The name of the extra data, with package prefix.
   4764      * @param value The boolean array data value.
   4765      *
   4766      * @return Returns the same Intent object, for chaining multiple calls
   4767      * into a single statement.
   4768      *
   4769      * @see #putExtras
   4770      * @see #removeExtra
   4771      * @see #getBooleanArrayExtra(String)
   4772      */
   4773     public Intent putExtra(String name, boolean[] value) {
   4774         if (mExtras == null) {
   4775             mExtras = new Bundle();
   4776         }
   4777         mExtras.putBooleanArray(name, value);
   4778         return this;
   4779     }
   4780 
   4781     /**
   4782      * Add extended data to the intent.  The name must include a package
   4783      * prefix, for example the app com.android.contacts would use names
   4784      * like "com.android.contacts.ShowAll".
   4785      *
   4786      * @param name The name of the extra data, with package prefix.
   4787      * @param value The byte array data value.
   4788      *
   4789      * @return Returns the same Intent object, for chaining multiple calls
   4790      * into a single statement.
   4791      *
   4792      * @see #putExtras
   4793      * @see #removeExtra
   4794      * @see #getByteArrayExtra(String)
   4795      */
   4796     public Intent putExtra(String name, byte[] value) {
   4797         if (mExtras == null) {
   4798             mExtras = new Bundle();
   4799         }
   4800         mExtras.putByteArray(name, value);
   4801         return this;
   4802     }
   4803 
   4804     /**
   4805      * Add extended data to the intent.  The name must include a package
   4806      * prefix, for example the app com.android.contacts would use names
   4807      * like "com.android.contacts.ShowAll".
   4808      *
   4809      * @param name The name of the extra data, with package prefix.
   4810      * @param value The short array data value.
   4811      *
   4812      * @return Returns the same Intent object, for chaining multiple calls
   4813      * into a single statement.
   4814      *
   4815      * @see #putExtras
   4816      * @see #removeExtra
   4817      * @see #getShortArrayExtra(String)
   4818      */
   4819     public Intent putExtra(String name, short[] value) {
   4820         if (mExtras == null) {
   4821             mExtras = new Bundle();
   4822         }
   4823         mExtras.putShortArray(name, value);
   4824         return this;
   4825     }
   4826 
   4827     /**
   4828      * Add extended data to the intent.  The name must include a package
   4829      * prefix, for example the app com.android.contacts would use names
   4830      * like "com.android.contacts.ShowAll".
   4831      *
   4832      * @param name The name of the extra data, with package prefix.
   4833      * @param value The char array data value.
   4834      *
   4835      * @return Returns the same Intent object, for chaining multiple calls
   4836      * into a single statement.
   4837      *
   4838      * @see #putExtras
   4839      * @see #removeExtra
   4840      * @see #getCharArrayExtra(String)
   4841      */
   4842     public Intent putExtra(String name, char[] value) {
   4843         if (mExtras == null) {
   4844             mExtras = new Bundle();
   4845         }
   4846         mExtras.putCharArray(name, value);
   4847         return this;
   4848     }
   4849 
   4850     /**
   4851      * Add extended data to the intent.  The name must include a package
   4852      * prefix, for example the app com.android.contacts would use names
   4853      * like "com.android.contacts.ShowAll".
   4854      *
   4855      * @param name The name of the extra data, with package prefix.
   4856      * @param value The int array data value.
   4857      *
   4858      * @return Returns the same Intent object, for chaining multiple calls
   4859      * into a single statement.
   4860      *
   4861      * @see #putExtras
   4862      * @see #removeExtra
   4863      * @see #getIntArrayExtra(String)
   4864      */
   4865     public Intent putExtra(String name, int[] value) {
   4866         if (mExtras == null) {
   4867             mExtras = new Bundle();
   4868         }
   4869         mExtras.putIntArray(name, value);
   4870         return this;
   4871     }
   4872 
   4873     /**
   4874      * Add extended data to the intent.  The name must include a package
   4875      * prefix, for example the app com.android.contacts would use names
   4876      * like "com.android.contacts.ShowAll".
   4877      *
   4878      * @param name The name of the extra data, with package prefix.
   4879      * @param value The byte array data value.
   4880      *
   4881      * @return Returns the same Intent object, for chaining multiple calls
   4882      * into a single statement.
   4883      *
   4884      * @see #putExtras
   4885      * @see #removeExtra
   4886      * @see #getLongArrayExtra(String)
   4887      */
   4888     public Intent putExtra(String name, long[] value) {
   4889         if (mExtras == null) {
   4890             mExtras = new Bundle();
   4891         }
   4892         mExtras.putLongArray(name, value);
   4893         return this;
   4894     }
   4895 
   4896     /**
   4897      * Add extended data to the intent.  The name must include a package
   4898      * prefix, for example the app com.android.contacts would use names
   4899      * like "com.android.contacts.ShowAll".
   4900      *
   4901      * @param name The name of the extra data, with package prefix.
   4902      * @param value The float array data value.
   4903      *
   4904      * @return Returns the same Intent object, for chaining multiple calls
   4905      * into a single statement.
   4906      *
   4907      * @see #putExtras
   4908      * @see #removeExtra
   4909      * @see #getFloatArrayExtra(String)
   4910      */
   4911     public Intent putExtra(String name, float[] value) {
   4912         if (mExtras == null) {
   4913             mExtras = new Bundle();
   4914         }
   4915         mExtras.putFloatArray(name, value);
   4916         return this;
   4917     }
   4918 
   4919     /**
   4920      * Add extended data to the intent.  The name must include a package
   4921      * prefix, for example the app com.android.contacts would use names
   4922      * like "com.android.contacts.ShowAll".
   4923      *
   4924      * @param name The name of the extra data, with package prefix.
   4925      * @param value The double array data value.
   4926      *
   4927      * @return Returns the same Intent object, for chaining multiple calls
   4928      * into a single statement.
   4929      *
   4930      * @see #putExtras
   4931      * @see #removeExtra
   4932      * @see #getDoubleArrayExtra(String)
   4933      */
   4934     public Intent putExtra(String name, double[] value) {
   4935         if (mExtras == null) {
   4936             mExtras = new Bundle();
   4937         }
   4938         mExtras.putDoubleArray(name, value);
   4939         return this;
   4940     }
   4941 
   4942     /**
   4943      * Add extended data to the intent.  The name must include a package
   4944      * prefix, for example the app com.android.contacts would use names
   4945      * like "com.android.contacts.ShowAll".
   4946      *
   4947      * @param name The name of the extra data, with package prefix.
   4948      * @param value The String array data value.
   4949      *
   4950      * @return Returns the same Intent object, for chaining multiple calls
   4951      * into a single statement.
   4952      *
   4953      * @see #putExtras
   4954      * @see #removeExtra
   4955      * @see #getStringArrayExtra(String)
   4956      */
   4957     public Intent putExtra(String name, String[] value) {
   4958         if (mExtras == null) {
   4959             mExtras = new Bundle();
   4960         }
   4961         mExtras.putStringArray(name, value);
   4962         return this;
   4963     }
   4964 
   4965     /**
   4966      * Add extended data to the intent.  The name must include a package
   4967      * prefix, for example the app com.android.contacts would use names
   4968      * like "com.android.contacts.ShowAll".
   4969      *
   4970      * @param name The name of the extra data, with package prefix.
   4971      * @param value The CharSequence array data value.
   4972      *
   4973      * @return Returns the same Intent object, for chaining multiple calls
   4974      * into a single statement.
   4975      *
   4976      * @see #putExtras
   4977      * @see #removeExtra
   4978      * @see #getCharSequenceArrayExtra(String)
   4979      */
   4980     public Intent putExtra(String name, CharSequence[] value) {
   4981         if (mExtras == null) {
   4982             mExtras = new Bundle();
   4983         }
   4984         mExtras.putCharSequenceArray(name, value);
   4985         return this;
   4986     }
   4987 
   4988     /**
   4989      * Add extended data to the intent.  The name must include a package
   4990      * prefix, for example the app com.android.contacts would use names
   4991      * like "com.android.contacts.ShowAll".
   4992      *
   4993      * @param name The name of the extra data, with package prefix.
   4994      * @param value The Bundle data value.
   4995      *
   4996      * @return Returns the same Intent object, for chaining multiple calls
   4997      * into a single statement.
   4998      *
   4999      * @see #putExtras
   5000      * @see #removeExtra
   5001      * @see #getBundleExtra(String)
   5002      */
   5003     public Intent putExtra(String name, Bundle value) {
   5004         if (mExtras == null) {
   5005             mExtras = new Bundle();
   5006         }
   5007         mExtras.putBundle(name, value);
   5008         return this;
   5009     }
   5010 
   5011     /**
   5012      * Add extended data to the intent.  The name must include a package
   5013      * prefix, for example the app com.android.contacts would use names
   5014      * like "com.android.contacts.ShowAll".
   5015      *
   5016      * @param name The name of the extra data, with package prefix.
   5017      * @param value The IBinder data value.
   5018      *
   5019      * @return Returns the same Intent object, for chaining multiple calls
   5020      * into a single statement.
   5021      *
   5022      * @see #putExtras
   5023      * @see #removeExtra
   5024      * @see #getIBinderExtra(String)
   5025      *
   5026      * @deprecated
   5027      * @hide
   5028      */
   5029     @Deprecated
   5030     public Intent putExtra(String name, IBinder value) {
   5031         if (mExtras == null) {
   5032             mExtras = new Bundle();
   5033         }
   5034         mExtras.putIBinder(name, value);
   5035         return this;
   5036     }
   5037 
   5038     /**
   5039      * Copy all extras in 'src' in to this intent.
   5040      *
   5041      * @param src Contains the extras to copy.
   5042      *
   5043      * @see #putExtra
   5044      */
   5045     public Intent putExtras(Intent src) {
   5046         if (src.mExtras != null) {
   5047             if (mExtras == null) {
   5048                 mExtras = new Bundle(src.mExtras);
   5049             } else {
   5050                 mExtras.putAll(src.mExtras);
   5051             }
   5052         }
   5053         return this;
   5054     }
   5055 
   5056     /**
   5057      * Add a set of extended data to the intent.  The keys must include a package
   5058      * prefix, for example the app com.android.contacts would use names
   5059      * like "com.android.contacts.ShowAll".
   5060      *
   5061      * @param extras The Bundle of extras to add to this intent.
   5062      *
   5063      * @see #putExtra
   5064      * @see #removeExtra
   5065      */
   5066     public Intent putExtras(Bundle extras) {
   5067         if (mExtras == null) {
   5068             mExtras = new Bundle();
   5069         }
   5070         mExtras.putAll(extras);
   5071         return this;
   5072     }
   5073 
   5074     /**
   5075      * Completely replace the extras in the Intent with the extras in the
   5076      * given Intent.
   5077      *
   5078      * @param src The exact extras contained in this Intent are copied
   5079      * into the target intent, replacing any that were previously there.
   5080      */
   5081     public Intent replaceExtras(Intent src) {
   5082         mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
   5083         return this;
   5084     }
   5085 
   5086     /**
   5087      * Completely replace the extras in the Intent with the given Bundle of
   5088      * extras.
   5089      *
   5090      * @param extras The new set of extras in the Intent, or null to erase
   5091      * all extras.
   5092      */
   5093     public Intent replaceExtras(Bundle extras) {
   5094         mExtras = extras != null ? new Bundle(extras) : null;
   5095         return this;
   5096     }
   5097 
   5098     /**
   5099      * Remove extended data from the intent.
   5100      *
   5101      * @see #putExtra
   5102      */
   5103     public void removeExtra(String name) {
   5104         if (mExtras != null) {
   5105             mExtras.remove(name);
   5106             if (mExtras.size() == 0) {
   5107                 mExtras = null;
   5108             }
   5109         }
   5110     }
   5111 
   5112     /**
   5113      * Set special flags controlling how this intent is handled.  Most values
   5114      * here depend on the type of component being executed by the Intent,
   5115      * specifically the FLAG_ACTIVITY_* flags are all for use with
   5116      * {@link Context#startActivity Context.startActivity()} and the
   5117      * FLAG_RECEIVER_* flags are all for use with
   5118      * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
   5119      *
   5120      * <p>See the
   5121      * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
   5122      * Stack</a> documentation for important information on how some of these options impact
   5123      * the behavior of your application.
   5124      *
   5125      * @param flags The desired flags.
   5126      *
   5127      * @return Returns the same Intent object, for chaining multiple calls
   5128      * into a single statement.
   5129      *
   5130      * @see #getFlags
   5131      * @see #addFlags
   5132      *
   5133      * @see #FLAG_GRANT_READ_URI_PERMISSION
   5134      * @see #FLAG_GRANT_WRITE_URI_PERMISSION
   5135      * @see #FLAG_DEBUG_LOG_RESOLUTION
   5136      * @see #FLAG_FROM_BACKGROUND
   5137      * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
   5138      * @see #FLAG_ACTIVITY_CLEAR_TASK
   5139      * @see #FLAG_ACTIVITY_CLEAR_TOP
   5140      * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
   5141      * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
   5142      * @see #FLAG_ACTIVITY_FORWARD_RESULT
   5143      * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
   5144      * @see #FLAG_ACTIVITY_MULTIPLE_TASK
   5145      * @see #FLAG_ACTIVITY_NEW_TASK
   5146      * @see #FLAG_ACTIVITY_NO_ANIMATION
   5147      * @see #FLAG_ACTIVITY_NO_HISTORY
   5148      * @see #FLAG_ACTIVITY_NO_USER_ACTION
   5149      * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
   5150      * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
   5151      * @see #FLAG_ACTIVITY_REORDER_TO_FRONT
   5152      * @see #FLAG_ACTIVITY_SINGLE_TOP
   5153      * @see #FLAG_ACTIVITY_TASK_ON_HOME
   5154      * @see #FLAG_RECEIVER_REGISTERED_ONLY
   5155      */
   5156     public Intent setFlags(int flags) {
   5157         mFlags = flags;
   5158         return this;
   5159     }
   5160 
   5161     /**
   5162      * Add additional flags to the intent (or with existing flags
   5163      * value).
   5164      *
   5165      * @param flags The new flags to set.
   5166      *
   5167      * @return Returns the same Intent object, for chaining multiple calls
   5168      * into a single statement.
   5169      *
   5170      * @see #setFlags
   5171      */
   5172     public Intent addFlags(int flags) {
   5173         mFlags |= flags;
   5174         return this;
   5175     }
   5176 
   5177     /**
   5178      * (Usually optional) Set an explicit application package name that limits
   5179      * the components this Intent will resolve to.  If left to the default
   5180      * value of null, all components in all applications will considered.
   5181      * If non-null, the Intent can only match the components in the given
   5182      * application package.
   5183      *
   5184      * @param packageName The name of the application package to handle the
   5185      * intent, or null to allow any application package.
   5186      *
   5187      * @return Returns the same Intent object, for chaining multiple calls
   5188      * into a single statement.
   5189      *
   5190      * @see #getPackage
   5191      * @see #resolveActivity
   5192      */
   5193     public Intent setPackage(String packageName) {
   5194         mPackage = packageName;
   5195         return this;
   5196     }
   5197 
   5198     /**
   5199      * (Usually optional) Explicitly set the component to handle the intent.
   5200      * If left with the default value of null, the system will determine the
   5201      * appropriate class to use based on the other fields (action, data,
   5202      * type, categories) in the Intent.  If this class is defined, the
   5203      * specified class will always be used regardless of the other fields.  You
   5204      * should only set this value when you know you absolutely want a specific
   5205      * class to be used; otherwise it is better to let the system find the
   5206      * appropriate class so that you will respect the installed applications
   5207      * and user preferences.
   5208      *
   5209      * @param component The name of the application component to handle the
   5210      * intent, or null to let the system find one for you.
   5211      *
   5212      * @return Returns the same Intent object, for chaining multiple calls
   5213      * into a single statement.
   5214      *
   5215      * @see #setClass
   5216      * @see #setClassName(Context, String)
   5217      * @see #setClassName(String, String)
   5218      * @see #getComponent
   5219      * @see #resolveActivity
   5220      */
   5221     public Intent setComponent(ComponentName component) {
   5222         mComponent = component;
   5223         return this;
   5224     }
   5225 
   5226     /**
   5227      * Convenience for calling {@link #setComponent} with an
   5228      * explicit class name.
   5229      *
   5230      * @param packageContext A Context of the application package implementing
   5231      * this class.
   5232      * @param className The name of a class inside of the application package
   5233      * that will be used as the component for this Intent.
   5234      *
   5235      * @return Returns the same Intent object, for chaining multiple calls
   5236      * into a single statement.
   5237      *
   5238      * @see #setComponent
   5239      * @see #setClass
   5240      */
   5241     public Intent setClassName(Context packageContext, String className) {
   5242         mComponent = new ComponentName(packageContext, className);
   5243         return this;
   5244     }
   5245 
   5246     /**
   5247      * Convenience for calling {@link #setComponent} with an
   5248      * explicit application package name and class name.
   5249      *
   5250      * @param packageName The name of the package implementing the desired
   5251      * component.
   5252      * @param className The name of a class inside of the application package
   5253      * that will be used as the component for this Intent.
   5254      *
   5255      * @return Returns the same Intent object, for chaining multiple calls
   5256      * into a single statement.
   5257      *
   5258      * @see #setComponent
   5259      * @see #setClass
   5260      */
   5261     public Intent setClassName(String packageName, String className) {
   5262         mComponent = new ComponentName(packageName, className);
   5263         return this;
   5264     }
   5265 
   5266     /**
   5267      * Convenience for calling {@link #setComponent(ComponentName)} with the
   5268      * name returned by a {@link Class} object.
   5269      *
   5270      * @param packageContext A Context of the application package implementing
   5271      * this class.
   5272      * @param cls The class name to set, equivalent to
   5273      *            <code>setClassName(context, cls.getName())</code>.
   5274      *
   5275      * @return Returns the same Intent object, for chaining multiple calls
   5276      * into a single statement.
   5277      *
   5278      * @see #setComponent
   5279      */
   5280     public Intent setClass(Context packageContext, Class<?> cls) {
   5281         mComponent = new ComponentName(packageContext, cls);
   5282         return this;
   5283     }
   5284 
   5285     /**
   5286      * Set the bounds of the sender of this intent, in screen coordinates.  This can be
   5287      * used as a hint to the receiver for animations and the like.  Null means that there
   5288      * is no source bounds.
   5289      */
   5290     public void setSourceBounds(Rect r) {
   5291         if (r != null) {
   5292             mSourceBounds = new Rect(r);
   5293         } else {
   5294             mSourceBounds = null;
   5295         }
   5296     }
   5297 
   5298     /**
   5299      * Use with {@link #fillIn} to allow the current action value to be
   5300      * overwritten, even if it is already set.
   5301      */
   5302     public static final int FILL_IN_ACTION = 1<<0;
   5303 
   5304     /**
   5305      * Use with {@link #fillIn} to allow the current data or type value
   5306      * overwritten, even if it is already set.
   5307      */
   5308     public static final int FILL_IN_DATA = 1<<1;
   5309 
   5310     /**
   5311      * Use with {@link #fillIn} to allow the current categories to be
   5312      * overwritten, even if they are already set.
   5313      */
   5314     public static final int FILL_IN_CATEGORIES = 1<<2;
   5315 
   5316     /**
   5317      * Use with {@link #fillIn} to allow the current component value to be
   5318      * overwritten, even if it is already set.
   5319      */
   5320     public static final int FILL_IN_COMPONENT = 1<<3;
   5321 
   5322     /**
   5323      * Use with {@link #fillIn} to allow the current package value to be
   5324      * overwritten, even if it is already set.
   5325      */
   5326     public static final int FILL_IN_PACKAGE = 1<<4;
   5327 
   5328     /**
   5329      * Use with {@link #fillIn} to allow the current package value to be
   5330      * overwritten, even if it is already set.
   5331      */
   5332     public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
   5333 
   5334     /**
   5335      * Copy the contents of <var>other</var> in to this object, but only
   5336      * where fields are not defined by this object.  For purposes of a field
   5337      * being defined, the following pieces of data in the Intent are
   5338      * considered to be separate fields:
   5339      *
   5340      * <ul>
   5341      * <li> action, as set by {@link #setAction}.
   5342      * <li> data URI and MIME type, as set by {@link #setData(Uri)},
   5343      * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
   5344      * <li> categories, as set by {@link #addCategory}.
   5345      * <li> package, as set by {@link #setPackage}.
   5346      * <li> component, as set by {@link #setComponent(ComponentName)} or
   5347      * related methods.
   5348      * <li> source bounds, as set by {@link #setSourceBounds}
   5349      * <li> each top-level name in the associated extras.
   5350      * </ul>
   5351      *
   5352      * <p>In addition, you can use the {@link #FILL_IN_ACTION},
   5353      * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
   5354      * and {@link #FILL_IN_COMPONENT} to override the restriction where the
   5355      * corresponding field will not be replaced if it is already set.
   5356      *
   5357      * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
   5358      * specified.
   5359      *
   5360      * <p>For example, consider Intent A with {data="foo", categories="bar"}
   5361      * and Intent B with {action="gotit", data-type="some/thing",
   5362      * categories="one","two"}.
   5363      *
   5364      * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
   5365      * containing: {action="gotit", data-type="some/thing",
   5366      * categories="bar"}.
   5367      *
   5368      * @param other Another Intent whose values are to be used to fill in
   5369      * the current one.
   5370      * @param flags Options to control which fields can be filled in.
   5371      *
   5372      * @return Returns a bit mask of {@link #FILL_IN_ACTION},
   5373      * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
   5374      * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
   5375      */
   5376     public int fillIn(Intent other, int flags) {
   5377         int changes = 0;
   5378         if (other.mAction != null
   5379                 && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
   5380             mAction = other.mAction;
   5381             changes |= FILL_IN_ACTION;
   5382         }
   5383         if ((other.mData != null || other.mType != null)
   5384                 && ((mData == null && mType == null)
   5385                         || (flags&FILL_IN_DATA) != 0)) {
   5386             mData = other.mData;
   5387             mType = other.mType;
   5388             changes |= FILL_IN_DATA;
   5389         }
   5390         if (other.mCategories != null
   5391                 && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
   5392             if (other.mCategories != null) {
   5393                 mCategories = new HashSet<String>(other.mCategories);
   5394             }
   5395             changes |= FILL_IN_CATEGORIES;
   5396         }
   5397         if (other.mPackage != null
   5398                 && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
   5399             mPackage = other.mPackage;
   5400             changes |= FILL_IN_PACKAGE;
   5401         }
   5402         // Component is special: it can -only- be set if explicitly allowed,
   5403         // since otherwise the sender could force the intent somewhere the
   5404         // originator didn't intend.
   5405         if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
   5406             mComponent = other.mComponent;
   5407             changes |= FILL_IN_COMPONENT;
   5408         }
   5409         mFlags |= other.mFlags;
   5410         if (other.mSourceBounds != null
   5411                 && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
   5412             mSourceBounds = new Rect(other.mSourceBounds);
   5413             changes |= FILL_IN_SOURCE_BOUNDS;
   5414         }
   5415         if (mExtras == null) {
   5416             if (other.mExtras != null) {
   5417                 mExtras = new Bundle(other.mExtras);
   5418             }
   5419         } else if (other.mExtras != null) {
   5420             try {
   5421                 Bundle newb = new Bundle(other.mExtras);
   5422                 newb.putAll(mExtras);
   5423                 mExtras = newb;
   5424             } catch (RuntimeException e) {
   5425                 // Modifying the extras can cause us to unparcel the contents
   5426                 // of the bundle, and if we do this in the system process that
   5427                 // may fail.  We really should handle this (i.e., the Bundle
   5428                 // impl shouldn't be on top of a plain map), but for now just
   5429                 // ignore it and keep the original contents. :(
   5430                 Log.w("Intent", "Failure filling in extras", e);
   5431             }
   5432         }
   5433         return changes;
   5434     }
   5435 
   5436     /**
   5437      * Wrapper class holding an Intent and implementing comparisons on it for
   5438      * the purpose of filtering.  The class implements its
   5439      * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
   5440      * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
   5441      * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
   5442      * on the wrapped Intent.
   5443      */
   5444     public static final class FilterComparison {
   5445         private final Intent mIntent;
   5446         private final int mHashCode;
   5447 
   5448         public FilterComparison(Intent intent) {
   5449             mIntent = intent;
   5450             mHashCode = intent.filterHashCode();
   5451         }
   5452 
   5453         /**
   5454          * Return the Intent that this FilterComparison represents.
   5455          * @return Returns the Intent held by the FilterComparison.  Do
   5456          * not modify!
   5457          */
   5458         public Intent getIntent() {
   5459             return mIntent;
   5460         }
   5461 
   5462         @Override
   5463         public boolean equals(Object obj) {
   5464             if (obj instanceof FilterComparison) {
   5465                 Intent other = ((FilterComparison)obj).mIntent;
   5466                 return mIntent.filterEquals(other);
   5467             }
   5468             return false;
   5469         }
   5470 
   5471         @Override
   5472         public int hashCode() {
   5473             return mHashCode;
   5474         }
   5475     }
   5476 
   5477     /**
   5478      * Determine if two intents are the same for the purposes of intent
   5479      * resolution (filtering). That is, if their action, data, type,
   5480      * class, and categories are the same.  This does <em>not</em> compare
   5481      * any extra data included in the intents.
   5482      *
   5483      * @param other The other Intent to compare against.
   5484      *
   5485      * @return Returns true if action, data, type, class, and categories
   5486      *         are the same.
   5487      */
   5488     public boolean filterEquals(Intent other) {
   5489         if (other == null) {
   5490             return false;
   5491         }
   5492         if (mAction != other.mAction) {
   5493             if (mAction != null) {
   5494                 if (!mAction.equals(other.mAction)) {
   5495                     return false;
   5496                 }
   5497             } else {
   5498                 if (!other.mAction.equals(mAction)) {
   5499                     return false;
   5500                 }
   5501             }
   5502         }
   5503         if (mData != other.mData) {
   5504             if (mData != null) {
   5505                 if (!mData.equals(other.mData)) {
   5506                     return false;
   5507                 }
   5508             } else {
   5509                 if (!other.mData.equals(mData)) {
   5510                     return false;
   5511                 }
   5512             }
   5513         }
   5514         if (mType != other.mType) {
   5515             if (mType != null) {
   5516                 if (!mType.equals(other.mType)) {
   5517                     return false;
   5518                 }
   5519             } else {
   5520                 if (!other.mType.equals(mType)) {
   5521                     return false;
   5522                 }
   5523             }
   5524         }
   5525         if (mPackage != other.mPackage) {
   5526             if (mPackage != null) {
   5527                 if (!mPackage.equals(other.mPackage)) {
   5528                     return false;
   5529                 }
   5530             } else {
   5531                 if (!other.mPackage.equals(mPackage)) {
   5532                     return false;
   5533                 }
   5534             }
   5535         }
   5536         if (mComponent != other.mComponent) {
   5537             if (mComponent != null) {
   5538                 if (!mComponent.equals(other.mComponent)) {
   5539                     return false;
   5540                 }
   5541             } else {
   5542                 if (!other.mComponent.equals(mComponent)) {
   5543                     return false;
   5544                 }
   5545             }
   5546         }
   5547         if (mCategories != other.mCategories) {
   5548             if (mCategories != null) {
   5549                 if (!mCategories.equals(other.mCategories)) {
   5550                     return false;
   5551                 }
   5552             } else {
   5553                 if (!other.mCategories.equals(mCategories)) {
   5554                     return false;
   5555                 }
   5556             }
   5557         }
   5558 
   5559         return true;
   5560     }
   5561 
   5562     /**
   5563      * Generate hash code that matches semantics of filterEquals().
   5564      *
   5565      * @return Returns the hash value of the action, data, type, class, and
   5566      *         categories.
   5567      *
   5568      * @see #filterEquals
   5569      */
   5570     public int filterHashCode() {
   5571         int code = 0;
   5572         if (mAction != null) {
   5573             code += mAction.hashCode();
   5574         }
   5575         if (mData != null) {
   5576             code += mData.hashCode();
   5577         }
   5578         if (mType != null) {
   5579             code += mType.hashCode();
   5580         }
   5581         if (mPackage != null) {
   5582             code += mPackage.hashCode();
   5583         }
   5584         if (mComponent != null) {
   5585             code += mComponent.hashCode();
   5586         }
   5587         if (mCategories != null) {
   5588             code += mCategories.hashCode();
   5589         }
   5590         return code;
   5591     }
   5592 
   5593     @Override
   5594     public String toString() {
   5595         StringBuilder b = new StringBuilder(128);
   5596 
   5597         b.append("Intent { ");
   5598         toShortString(b, true, true, true);
   5599         b.append(" }");
   5600 
   5601         return b.toString();
   5602     }
   5603 
   5604     /** @hide */
   5605     public String toInsecureString() {
   5606         StringBuilder b = new StringBuilder(128);
   5607 
   5608         b.append("Intent { ");
   5609         toShortString(b, false, true, true);
   5610         b.append(" }");
   5611 
   5612         return b.toString();
   5613     }
   5614 
   5615     /** @hide */
   5616     public String toShortString(boolean secure, boolean comp, boolean extras) {
   5617         StringBuilder b = new StringBuilder(128);
   5618         toShortString(b, secure, comp, extras);
   5619         return b.toString();
   5620     }
   5621 
   5622     /** @hide */
   5623     public void toShortString(StringBuilder b, boolean secure, boolean comp, boolean extras) {
   5624         boolean first = true;
   5625         if (mAction != null) {
   5626             b.append("act=").append(mAction);
   5627             first = false;
   5628         }
   5629         if (mCategories != null) {
   5630             if (!first) {
   5631                 b.append(' ');
   5632             }
   5633             first = false;
   5634             b.append("cat=[");
   5635             Iterator<String> i = mCategories.iterator();
   5636             boolean didone = false;
   5637             while (i.hasNext()) {
   5638                 if (didone) b.append(",");
   5639                 didone = true;
   5640                 b.append(i.next());
   5641             }
   5642             b.append("]");
   5643         }
   5644         if (mData != null) {
   5645             if (!first) {
   5646                 b.append(' ');
   5647             }
   5648             first = false;
   5649             b.append("dat=");
   5650             if (secure) {
   5651                 b.append(mData.toSafeString());
   5652             } else {
   5653                 b.append(mData);
   5654             }
   5655         }
   5656         if (mType != null) {
   5657             if (!first) {
   5658                 b.append(' ');
   5659             }
   5660             first = false;
   5661             b.append("typ=").append(mType);
   5662         }
   5663         if (mFlags != 0) {
   5664             if (!first) {
   5665                 b.append(' ');
   5666             }
   5667             first = false;
   5668             b.append("flg=0x").append(Integer.toHexString(mFlags));
   5669         }
   5670         if (mPackage != null) {
   5671             if (!first) {
   5672                 b.append(' ');
   5673             }
   5674             first = false;
   5675             b.append("pkg=").append(mPackage);
   5676         }
   5677         if (comp && mComponent != null) {
   5678             if (!first) {
   5679                 b.append(' ');
   5680             }
   5681             first = false;
   5682             b.append("cmp=").append(mComponent.flattenToShortString());
   5683         }
   5684         if (mSourceBounds != null) {
   5685             if (!first) {
   5686                 b.append(' ');
   5687             }
   5688             first = false;
   5689             b.append("bnds=").append(mSourceBounds.toShortString());
   5690         }
   5691         if (extras && mExtras != null) {
   5692             if (!first) {
   5693                 b.append(' ');
   5694             }
   5695             first = false;
   5696             b.append("(has extras)");
   5697         }
   5698     }
   5699 
   5700     /**
   5701      * Call {@link #toUri} with 0 flags.
   5702      * @deprecated Use {@link #toUri} instead.
   5703      */
   5704     @Deprecated
   5705     public String toURI() {
   5706         return toUri(0);
   5707     }
   5708 
   5709     /**
   5710      * Convert this Intent into a String holding a URI representation of it.
   5711      * The returned URI string has been properly URI encoded, so it can be
   5712      * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
   5713      * Intent's data as the base URI, with an additional fragment describing
   5714      * the action, categories, type, flags, package, component, and extras.
   5715      *
   5716      * <p>You can convert the returned string back to an Intent with
   5717      * {@link #getIntent}.
   5718      *
   5719      * @param flags Additional operating flags.  Either 0 or
   5720      * {@link #URI_INTENT_SCHEME}.
   5721      *
   5722      * @return Returns a URI encoding URI string describing the entire contents
   5723      * of the Intent.
   5724      */
   5725     public String toUri(int flags) {
   5726         StringBuilder uri = new StringBuilder(128);
   5727         String scheme = null;
   5728         if (mData != null) {
   5729             String data = mData.toString();
   5730             if ((flags&URI_INTENT_SCHEME) != 0) {
   5731                 final int N = data.length();
   5732                 for (int i=0; i<N; i++) {
   5733                     char c = data.charAt(i);
   5734                     if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
   5735                             || c == '.' || c == '-') {
   5736                         continue;
   5737                     }
   5738                     if (c == ':' && i > 0) {
   5739                         // Valid scheme.
   5740                         scheme = data.substring(0, i);
   5741                         uri.append("intent:");
   5742                         data = data.substring(i+1);
   5743                         break;
   5744                     }
   5745 
   5746                     // No scheme.
   5747                     break;
   5748                 }
   5749             }
   5750             uri.append(data);
   5751 
   5752         } else if ((flags&URI_INTENT_SCHEME) != 0) {
   5753             uri.append("intent:");
   5754         }
   5755 
   5756         uri.append("#Intent;");
   5757 
   5758         if (scheme != null) {
   5759             uri.append("scheme=").append(scheme).append(';');
   5760         }
   5761         if (mAction != null) {
   5762             uri.append("action=").append(Uri.encode(mAction)).append(';');
   5763         }
   5764         if (mCategories != null) {
   5765             for (String category : mCategories) {
   5766                 uri.append("category=").append(Uri.encode(category)).append(';');
   5767             }
   5768         }
   5769         if (mType != null) {
   5770             uri.append("type=").append(Uri.encode(mType, "/")).append(';');
   5771         }
   5772         if (mFlags != 0) {
   5773             uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
   5774         }
   5775         if (mPackage != null) {
   5776             uri.append("package=").append(Uri.encode(mPackage)).append(';');
   5777         }
   5778         if (mComponent != null) {
   5779             uri.append("component=").append(Uri.encode(
   5780                     mComponent.flattenToShortString(), "/")).append(';');
   5781         }
   5782         if (mSourceBounds != null) {
   5783             uri.append("sourceBounds=")
   5784                     .append(Uri.encode(mSourceBounds.flattenToString()))
   5785                     .append(';');
   5786         }
   5787         if (mExtras != null) {
   5788             for (String key : mExtras.keySet()) {
   5789                 final Object value = mExtras.get(key);
   5790                 char entryType =
   5791                         value instanceof String    ? 'S' :
   5792                         value instanceof Boolean   ? 'B' :
   5793                         value instanceof Byte      ? 'b' :
   5794                         value instanceof Character ? 'c' :
   5795                         value instanceof Double    ? 'd' :
   5796                         value instanceof Float     ? 'f' :
   5797                         value instanceof Integer   ? 'i' :
   5798                         value instanceof Long      ? 'l' :
   5799                         value instanceof Short     ? 's' :
   5800                         '\0';
   5801 
   5802                 if (entryType != '\0') {
   5803                     uri.append(entryType);
   5804                     uri.append('.');
   5805                     uri.append(Uri.encode(key));
   5806                     uri.append('=');
   5807                     uri.append(Uri.encode(value.toString()));
   5808                     uri.append(';');
   5809                 }
   5810             }
   5811         }
   5812 
   5813         uri.append("end");
   5814 
   5815         return uri.toString();
   5816     }
   5817 
   5818     public int describeContents() {
   5819         return (mExtras != null) ? mExtras.describeContents() : 0;
   5820     }
   5821 
   5822     public void writeToParcel(Parcel out, int flags) {
   5823         out.writeString(mAction);
   5824         Uri.writeToParcel(out, mData);
   5825         out.writeString(mType);
   5826         out.writeInt(mFlags);
   5827         out.writeString(mPackage);
   5828         ComponentName.writeToParcel(mComponent, out);
   5829 
   5830         if (mSourceBounds != null) {
   5831             out.writeInt(1);
   5832             mSourceBounds.writeToParcel(out, flags);
   5833         } else {
   5834             out.writeInt(0);
   5835         }
   5836 
   5837         if (mCategories != null) {
   5838             out.writeInt(mCategories.size());
   5839             for (String category : mCategories) {
   5840                 out.writeString(category);
   5841             }
   5842         } else {
   5843             out.writeInt(0);
   5844         }
   5845 
   5846         out.writeBundle(mExtras);
   5847     }
   5848 
   5849     public static final Parcelable.Creator<Intent> CREATOR
   5850             = new Parcelable.Creator<Intent>() {
   5851         public Intent createFromParcel(Parcel in) {
   5852             return new Intent(in);
   5853         }
   5854         public Intent[] newArray(int size) {
   5855             return new Intent[size];
   5856         }
   5857     };
   5858 
   5859     /** @hide */
   5860     protected Intent(Parcel in) {
   5861         readFromParcel(in);
   5862     }
   5863 
   5864     public void readFromParcel(Parcel in) {
   5865         setAction(in.readString());
   5866         mData = Uri.CREATOR.createFromParcel(in);
   5867         mType = in.readString();
   5868         mFlags = in.readInt();
   5869         mPackage = in.readString();
   5870         mComponent = ComponentName.readFromParcel(in);
   5871 
   5872         if (in.readInt() != 0) {
   5873             mSourceBounds = Rect.CREATOR.createFromParcel(in);
   5874         }
   5875 
   5876         int N = in.readInt();
   5877         if (N > 0) {
   5878             mCategories = new HashSet<String>();
   5879             int i;
   5880             for (i=0; i<N; i++) {
   5881                 mCategories.add(in.readString().intern());
   5882             }
   5883         } else {
   5884             mCategories = null;
   5885         }
   5886 
   5887         mExtras = in.readBundle();
   5888     }
   5889 
   5890     /**
   5891      * Parses the "intent" element (and its children) from XML and instantiates
   5892      * an Intent object.  The given XML parser should be located at the tag
   5893      * where parsing should start (often named "intent"), from which the
   5894      * basic action, data, type, and package and class name will be
   5895      * retrieved.  The function will then parse in to any child elements,
   5896      * looking for <category android:name="xxx"> tags to add categories and
   5897      * <extra android:name="xxx" android:value="yyy"> to attach extra data
   5898      * to the intent.
   5899      *
   5900      * @param resources The Resources to use when inflating resources.
   5901      * @param parser The XML parser pointing at an "intent" tag.
   5902      * @param attrs The AttributeSet interface for retrieving extended
   5903      * attribute data at the current <var>parser</var> location.
   5904      * @return An Intent object matching the XML data.
   5905      * @throws XmlPullParserException If there was an XML parsing error.
   5906      * @throws IOException If there was an I/O error.
   5907      */
   5908     public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
   5909             throws XmlPullParserException, IOException {
   5910         Intent intent = new Intent();
   5911 
   5912         TypedArray sa = resources.obtainAttributes(attrs,
   5913                 com.android.internal.R.styleable.Intent);
   5914 
   5915         intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
   5916 
   5917         String data = sa.getString(com.android.internal.R.styleable.Intent_data);
   5918         String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
   5919         intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
   5920 
   5921         String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
   5922         String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
   5923         if (packageName != null && className != null) {
   5924             intent.setComponent(new ComponentName(packageName, className));
   5925         }
   5926 
   5927         sa.recycle();
   5928 
   5929         int outerDepth = parser.getDepth();
   5930         int type;
   5931         while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
   5932                && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
   5933             if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
   5934                 continue;
   5935             }
   5936 
   5937             String nodeName = parser.getName();
   5938             if (nodeName.equals("category")) {
   5939                 sa = resources.obtainAttributes(attrs,
   5940                         com.android.internal.R.styleable.IntentCategory);
   5941                 String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
   5942                 sa.recycle();
   5943 
   5944                 if (cat != null) {
   5945                     intent.addCategory(cat);
   5946                 }
   5947                 XmlUtils.skipCurrentTag(parser);
   5948 
   5949             } else if (nodeName.equals("extra")) {
   5950                 if (intent.mExtras == null) {
   5951                     intent.mExtras = new Bundle();
   5952                 }
   5953                 resources.parseBundleExtra("extra", attrs, intent.mExtras);
   5954                 XmlUtils.skipCurrentTag(parser);
   5955 
   5956             } else {
   5957                 XmlUtils.skipCurrentTag(parser);
   5958             }
   5959         }
   5960 
   5961         return intent;
   5962     }
   5963 }
   5964