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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
     59  * the code in different applications.  Its most significant use is in the
     60  * launching of activities, where it can be thought of as the glue between
     61  * activities. It is
     62  * basically a passive data structure holding an abstract description of an
     63  * action to be performed. The primary pieces of information in an intent
     64  * are:</p>
     65  *
     66  * <ul>
     67  *   <li> <p><b>action</b> -- The general action to be performed, such as
     68  *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
     69  *     etc.</p>
     70  *   </li>
     71  *   <li> <p><b>data</b> -- The data to operate on, such as a person record
     72  *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
     73  *   </li>
     74  * </ul>
     75  *
     76  *
     77  * <p>Some examples of action/data pairs are:</p>
     78  *
     79  * <ul>
     80  *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
     81  *     information about the person whose identifier is "1".</p>
     82  *   </li>
     83  *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
     84  *     the phone dialer with the person filled in.</p>
     85  *   </li>
     86  *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
     87  *     the phone dialer with the given number filled in.  Note how the
     88  *     VIEW action does what what is considered the most reasonable thing for
     89  *     a particular URI.</p>
     90  *   </li>
     91  *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
     92  *     the phone dialer with the given number filled in.</p>
     93  *   </li>
     94  *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
     95  *     information about the person whose identifier is "1".</p>
     96  *   </li>
     97  *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
     98  *     a list of people, which the user can browse through.  This example is a
     99  *     typical top-level entry into the Contacts application, showing you the
    100  *     list of people. Selecting a particular person to view would result in a
    101  *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
    102  *     being used to start an activity to display that person.</p>
    103  *   </li>
    104  * </ul>
    105  *
    106  * <p>In addition to these primary attributes, there are a number of secondary
    107  * attributes that you can also include with an intent:</p>
    108  *
    109  * <ul>
    110  *     <li> <p><b>category</b> -- Gives additional information about the action
    111  *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
    112  *         appear in the Launcher as a top-level application, while
    113  *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
    114  *         of alternative actions the user can perform on a piece of data.</p>
    115  *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
    116  *         intent data.  Normally the type is inferred from the data itself.
    117  *         By setting this attribute, you disable that evaluation and force
    118  *         an explicit type.</p>
    119  *     <li> <p><b>component</b> -- Specifies an explicit name of a component
    120  *         class to use for the intent.  Normally this is determined by looking
    121  *         at the other information in the intent (the action, data/type, and
    122  *         categories) and matching that with a component that can handle it.
    123  *         If this attribute is set then none of the evaluation is performed,
    124  *         and this component is used exactly as is.  By specifying this attribute,
    125  *         all of the other Intent attributes become optional.</p>
    126  *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
    127  *         This can be used to provide extended information to the component.
    128  *         For example, if we have a action to send an e-mail message, we could
    129  *         also include extra pieces of data here to supply a subject, body,
    130  *         etc.</p>
    131  * </ul>
    132  *
    133  * <p>Here are some examples of other operations you can specify as intents
    134  * using these additional parameters:</p>
    135  *
    136  * <ul>
    137  *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
    138  *     Launch the home screen.</p>
    139  *   </li>
    140  *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
    141  *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
    142  *     vnd.android.cursor.item/phone}</i></b>
    143  *     -- Display the list of people's phone numbers, allowing the user to
    144  *     browse through them and pick one and return it to the parent activity.</p>
    145  *   </li>
    146  *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
    147  *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
    148  *     -- Display all pickers for data that can be opened with
    149  *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
    150  *     allowing the user to pick one of them and then some data inside of it
    151  *     and returning the resulting URI to the caller.  This can be used,
    152  *     for example, in an e-mail application to allow the user to pick some
    153  *     data to include as an attachment.</p>
    154  *   </li>
    155  * </ul>
    156  *
    157  * <p>There are a variety of standard Intent action and category constants
    158  * defined in the Intent class, but applications can also define their own.
    159  * These strings use java style scoping, to ensure they are unique -- for
    160  * example, the standard {@link #ACTION_VIEW} is called
    161  * "android.intent.action.VIEW".</p>
    162  *
    163  * <p>Put together, the set of actions, data types, categories, and extra data
    164  * defines a language for the system allowing for the expression of phrases
    165  * such as "call john smith's cell".  As applications are added to the system,
    166  * they can extend this language by adding new actions, types, and categories, or
    167  * they can modify the behavior of existing phrases by supplying their own
    168  * activities that handle them.</p>
    169  *
    170  * <a name="IntentResolution"></a>
    171  * <h3>Intent Resolution</h3>
    172  *
    173  * <p>There are two primary forms of intents you will use.
    174  *
    175  * <ul>
    176  *     <li> <p><b>Explicit Intents</b> have specified a component (via
    177  *     {@link #setComponent} or {@link #setClass}), which provides the exact
    178  *     class to be run.  Often these will not include any other information,
    179  *     simply being a way for an application to launch various internal
    180  *     activities it has as the user interacts with the application.
    181  *
    182  *     <li> <p><b>Implicit Intents</b> have not specified a component;
    183  *     instead, they must include enough information for the system to
    184  *     determine which of the available components is best to run for that
    185  *     intent.
    186  * </ul>
    187  *
    188  * <p>When using implicit intents, given such an arbitrary intent we need to
    189  * know what to do with it. This is handled by the process of <em>Intent
    190  * resolution</em>, which maps an Intent to an {@link android.app.Activity},
    191  * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
    192  * more activities/receivers) that can handle it.</p>
    193  *
    194  * <p>The intent resolution mechanism basically revolves around matching an
    195  * Intent against all of the &lt;intent-filter&gt; descriptions in the
    196  * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
    197  * objects explicitly registered with {@link Context#registerReceiver}.)  More
    198  * details on this can be found in the documentation on the {@link
    199  * IntentFilter} class.</p>
    200  *
    201  * <p>There are three pieces of information in the Intent that are used for
    202  * resolution: the action, type, and category.  Using this information, a query
    203  * is done on the {@link PackageManager} for a component that can handle the
    204  * intent. The appropriate component is determined based on the intent
    205  * information supplied in the <code>AndroidManifest.xml</code> file as
    206  * follows:</p>
    207  *
    208  * <ul>
    209  *     <li> <p>The <b>action</b>, if given, must be listed by the component as
    210  *         one it handles.</p>
    211  *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
    212  *         already supplied in the Intent.  Like the action, if a type is
    213  *         included in the intent (either explicitly or implicitly in its
    214  *         data), then this must be listed by the component as one it handles.</p>
    215  *     <li> For data that is not a <code>content:</code> URI and where no explicit
    216  *         type is included in the Intent, instead the <b>scheme</b> of the
    217  *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
    218  *         considered. Again like the action, if we are matching a scheme it
    219  *         must be listed by the component as one it can handle.
    220  *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
    221  *         by the activity as categories it handles.  That is, if you include
    222  *         the categories {@link #CATEGORY_LAUNCHER} and
    223  *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
    224  *         with an intent that lists <em>both</em> of those categories.
    225  *         Activities will very often need to support the
    226  *         {@link #CATEGORY_DEFAULT} so that they can be found by
    227  *         {@link Context#startActivity Context.startActivity()}.</p>
    228  * </ul>
    229  *
    230  * <p>For example, consider the Note Pad sample application that
    231  * allows user to browse through a list of notes data and view details about
    232  * individual items.  Text in italics indicate places were you would replace a
    233  * name with one specific to your own package.</p>
    234  *
    235  * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
    236  *       package="<i>com.android.notepad</i>"&gt;
    237  *     &lt;application android:icon="@drawable/app_notes"
    238  *             android:label="@string/app_name"&gt;
    239  *
    240  *         &lt;provider class=".NotePadProvider"
    241  *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
    242  *
    243  *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
    244  *             &lt;intent-filter&gt;
    245  *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
    246  *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
    247  *             &lt;/intent-filter&gt;
    248  *             &lt;intent-filter&gt;
    249  *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
    250  *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
    251  *                 &lt;action android:name="android.intent.action.PICK" /&gt;
    252  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    253  *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    254  *             &lt;/intent-filter&gt;
    255  *             &lt;intent-filter&gt;
    256  *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
    257  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    258  *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    259  *             &lt;/intent-filter&gt;
    260  *         &lt;/activity&gt;
    261  *
    262  *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
    263  *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
    264  *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
    265  *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
    266  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    267  *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    268  *             &lt;/intent-filter&gt;
    269  *
    270  *             &lt;intent-filter&gt;
    271  *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
    272  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    273  *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    274  *             &lt;/intent-filter&gt;
    275  *
    276  *         &lt;/activity&gt;
    277  *
    278  *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
    279  *                 android:theme="@android:style/Theme.Dialog"&gt;
    280  *             &lt;intent-filter android:label="@string/resolve_title"&gt;
    281  *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
    282  *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
    283  *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
    284  *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
    285  *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    286  *             &lt;/intent-filter&gt;
    287  *         &lt;/activity&gt;
    288  *
    289  *     &lt;/application&gt;
    290  * &lt;/manifest&gt;</pre>
    291  *
    292  * <p>The first activity,
    293  * <code>com.android.notepad.NotesList</code>, serves as our main
    294  * entry into the app.  It can do three things as described by its three intent
    295  * templates:
    296  * <ol>
    297  * <li><pre>
    298  * &lt;intent-filter&gt;
    299  *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
    300  *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
    301  * &lt;/intent-filter&gt;</pre>
    302  * <p>This provides a top-level entry into the NotePad application: the standard
    303  * MAIN action is a main entry point (not requiring any other information in
    304  * the Intent), and the LAUNCHER category says that this entry point should be
    305  * listed in the application launcher.</p>
    306  * <li><pre>
    307  * &lt;intent-filter&gt;
    308  *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
    309  *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
    310  *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
    311  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    312  *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    313  * &lt;/intent-filter&gt;</pre>
    314  * <p>This declares the things that the activity can do on a directory of
    315  * notes.  The type being supported is given with the &lt;type&gt; tag, where
    316  * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
    317  * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
    318  * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
    319  * The activity allows the user to view or edit the directory of data (via
    320  * the VIEW and EDIT actions), or to pick a particular note and return it
    321  * to the caller (via the PICK action).  Note also the DEFAULT category
    322  * supplied here: this is <em>required</em> for the
    323  * {@link Context#startActivity Context.startActivity} method to resolve your
    324  * activity when its component name is not explicitly specified.</p>
    325  * <li><pre>
    326  * &lt;intent-filter&gt;
    327  *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
    328  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    329  *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    330  * &lt;/intent-filter&gt;</pre>
    331  * <p>This filter describes the ability return to the caller a note selected by
    332  * the user without needing to know where it came from.  The data type
    333  * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
    334  * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
    335  * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
    336  * The GET_CONTENT action is similar to the PICK action, where the activity
    337  * will return to its caller a piece of data selected by the user.  Here,
    338  * however, the caller specifies the type of data they desire instead of
    339  * the type of data the user will be picking from.</p>
    340  * </ol>
    341  *
    342  * <p>Given these capabilities, the following intents will resolve to the
    343  * NotesList activity:</p>
    344  *
    345  * <ul>
    346  *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
    347  *         activities that can be used as top-level entry points into an
    348  *         application.</p>
    349  *     <li> <p><b>{ action=android.app.action.MAIN,
    350  *         category=android.app.category.LAUNCHER }</b> is the actual intent
    351  *         used by the Launcher to populate its top-level list.</p>
    352  *     <li> <p><b>{ action=android.intent.action.VIEW
    353  *          data=content://com.google.provider.NotePad/notes }</b>
    354  *         displays a list of all the notes under
    355  *         "content://com.google.provider.NotePad/notes", which
    356  *         the user can browse through and see the details on.</p>
    357  *     <li> <p><b>{ action=android.app.action.PICK
    358  *          data=content://com.google.provider.NotePad/notes }</b>
    359  *         provides a list of the notes under
    360  *         "content://com.google.provider.NotePad/notes", from which
    361  *         the user can pick a note whose data URL is returned back to the caller.</p>
    362  *     <li> <p><b>{ action=android.app.action.GET_CONTENT
    363  *          type=vnd.android.cursor.item/vnd.google.note }</b>
    364  *         is similar to the pick action, but allows the caller to specify the
    365  *         kind of data they want back so that the system can find the appropriate
    366  *         activity to pick something of that data type.</p>
    367  * </ul>
    368  *
    369  * <p>The second activity,
    370  * <code>com.android.notepad.NoteEditor</code>, shows the user a single
    371  * note entry and allows them to edit it.  It can do two things as described
    372  * by its two intent templates:
    373  * <ol>
    374  * <li><pre>
    375  * &lt;intent-filter android:label="@string/resolve_edit"&gt;
    376  *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
    377  *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
    378  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    379  *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    380  * &lt;/intent-filter&gt;</pre>
    381  * <p>The first, primary, purpose of this activity is to let the user interact
    382  * with a single note, as decribed by the MIME type
    383  * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
    384  * either VIEW a note or allow the user to EDIT it.  Again we support the
    385  * DEFAULT category to allow the activity to be launched without explicitly
    386  * specifying its component.</p>
    387  * <li><pre>
    388  * &lt;intent-filter&gt;
    389  *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
    390  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    391  *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
    392  * &lt;/intent-filter&gt;</pre>
    393  * <p>The secondary use of this activity is to insert a new note entry into
    394  * an existing directory of notes.  This is used when the user creates a new
    395  * note: the INSERT action is executed on the directory of notes, causing
    396  * this activity to run and have the user create the new note data which
    397  * it then adds to the content provider.</p>
    398  * </ol>
    399  *
    400  * <p>Given these capabilities, the following intents will resolve to the
    401  * NoteEditor activity:</p>
    402  *
    403  * <ul>
    404  *     <li> <p><b>{ action=android.intent.action.VIEW
    405  *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
    406  *         shows the user the content of note <var>{ID}</var>.</p>
    407  *     <li> <p><b>{ action=android.app.action.EDIT
    408  *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
    409  *         allows the user to edit the content of note <var>{ID}</var>.</p>
    410  *     <li> <p><b>{ action=android.app.action.INSERT
    411  *          data=content://com.google.provider.NotePad/notes }</b>
    412  *         creates a new, empty note in the notes list at
    413  *         "content://com.google.provider.NotePad/notes"
    414  *         and allows the user to edit it.  If they keep their changes, the URI
    415  *         of the newly created note is returned to the caller.</p>
    416  * </ul>
    417  *
    418  * <p>The last activity,
    419  * <code>com.android.notepad.TitleEditor</code>, allows the user to
    420  * edit the title of a note.  This could be implemented as a class that the
    421  * application directly invokes (by explicitly setting its component in
    422  * the Intent), but here we show a way you can publish alternative
    423  * operations on existing data:</p>
    424  *
    425  * <pre>
    426  * &lt;intent-filter android:label="@string/resolve_title"&gt;
    427  *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
    428  *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
    429  *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
    430  *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
    431  *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
    432  * &lt;/intent-filter&gt;</pre>
    433  *
    434  * <p>In the single intent template here, we
    435  * have created our own private action called
    436  * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
    437  * edit the title of a note.  It must be invoked on a specific note
    438  * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
    439  * view and edit actions, but here displays and edits the title contained
    440  * in the note data.
    441  *
    442  * <p>In addition to supporting the default category as usual, our title editor
    443  * also supports two other standard categories: ALTERNATIVE and
    444  * SELECTED_ALTERNATIVE.  Implementing
    445  * these categories allows others to find the special action it provides
    446  * without directly knowing about it, through the
    447  * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
    448  * more often to build dynamic menu items with
    449  * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
    450  * template here was also supply an explicit name for the template
    451  * (via <code>android:label="@string/resolve_title"</code>) to better control
    452  * what the user sees when presented with this activity as an alternative
    453  * action to the data they are viewing.
    454  *
    455  * <p>Given these capabilities, the following intent will resolve to the
    456  * TitleEditor activity:</p>
    457  *
    458  * <ul>
    459  *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
    460  *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
    461  *         displays and allows the user to edit the title associated
    462  *         with note <var>{ID}</var>.</p>
    463  * </ul>
    464  *
    465  * <h3>Standard Activity Actions</h3>
    466  *
    467  * <p>These are the current standard actions that Intent defines for launching
    468  * activities (usually through {@link Context#startActivity}.  The most
    469  * important, and by far most frequently used, are {@link #ACTION_MAIN} and
    470  * {@link #ACTION_EDIT}.
    471  *
    472  * <ul>
    473  *     <li> {@link #ACTION_MAIN}
    474  *     <li> {@link #ACTION_VIEW}
    475  *     <li> {@link #ACTION_ATTACH_DATA}
    476  *     <li> {@link #ACTION_EDIT}
    477  *     <li> {@link #ACTION_PICK}
    478  *     <li> {@link #ACTION_CHOOSER}
    479  *     <li> {@link #ACTION_GET_CONTENT}
    480  *     <li> {@link #ACTION_DIAL}
    481  *     <li> {@link #ACTION_CALL}
    482  *     <li> {@link #ACTION_SEND}
    483  *     <li> {@link #ACTION_SENDTO}
    484  *     <li> {@link #ACTION_ANSWER}
    485  *     <li> {@link #ACTION_INSERT}
    486  *     <li> {@link #ACTION_DELETE}
    487  *     <li> {@link #ACTION_RUN}
    488  *     <li> {@link #ACTION_SYNC}
    489  *     <li> {@link #ACTION_PICK_ACTIVITY}
    490  *     <li> {@link #ACTION_SEARCH}
    491  *     <li> {@link #ACTION_WEB_SEARCH}
    492  *     <li> {@link #ACTION_FACTORY_TEST}
    493  * </ul>
    494  *
    495  * <h3>Standard Broadcast Actions</h3>
    496  *
    497  * <p>These are the current standard actions that Intent defines for receiving
    498  * broadcasts (usually through {@link Context#registerReceiver} or a
    499  * &lt;receiver&gt; tag in a manifest).
    500  *
    501  * <ul>
    502  *     <li> {@link #ACTION_TIME_TICK}
    503  *     <li> {@link #ACTION_TIME_CHANGED}
    504  *     <li> {@link #ACTION_TIMEZONE_CHANGED}
    505  *     <li> {@link #ACTION_BOOT_COMPLETED}
    506  *     <li> {@link #ACTION_PACKAGE_ADDED}
    507  *     <li> {@link #ACTION_PACKAGE_CHANGED}
    508  *     <li> {@link #ACTION_PACKAGE_REMOVED}
    509  *     <li> {@link #ACTION_PACKAGE_RESTARTED}
    510  *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
    511  *     <li> {@link #ACTION_UID_REMOVED}
    512  *     <li> {@link #ACTION_BATTERY_CHANGED}
    513  *     <li> {@link #ACTION_POWER_CONNECTED}
    514  *     <li> {@link #ACTION_POWER_DISCONNECTED}
    515  *     <li> {@link #ACTION_SHUTDOWN}
    516  * </ul>
    517  *
    518  * <h3>Standard Categories</h3>
    519  *
    520  * <p>These are the current standard categories that can be used to further
    521  * clarify an Intent via {@link #addCategory}.
    522  *
    523  * <ul>
    524  *     <li> {@link #CATEGORY_DEFAULT}
    525  *     <li> {@link #CATEGORY_BROWSABLE}
    526  *     <li> {@link #CATEGORY_TAB}
    527  *     <li> {@link #CATEGORY_ALTERNATIVE}
    528  *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
    529  *     <li> {@link #CATEGORY_LAUNCHER}
    530  *     <li> {@link #CATEGORY_INFO}
    531  *     <li> {@link #CATEGORY_HOME}
    532  *     <li> {@link #CATEGORY_PREFERENCE}
    533  *     <li> {@link #CATEGORY_TEST}
    534  *     <li> {@link #CATEGORY_CAR_DOCK}
    535  *     <li> {@link #CATEGORY_DESK_DOCK}
    536  *     <li> {@link #CATEGORY_CAR_MODE}
    537  * </ul>
    538  *
    539  * <h3>Standard Extra Data</h3>
    540  *
    541  * <p>These are the current standard fields that can be used as extra data via
    542  * {@link #putExtra}.
    543  *
    544  * <ul>
    545  *     <li> {@link #EXTRA_ALARM_COUNT}
    546  *     <li> {@link #EXTRA_BCC}
    547  *     <li> {@link #EXTRA_CC}
    548  *     <li> {@link #EXTRA_CHANGED_COMPONENT_NAME}
    549  *     <li> {@link #EXTRA_DATA_REMOVED}
    550  *     <li> {@link #EXTRA_DOCK_STATE}
    551  *     <li> {@link #EXTRA_DOCK_STATE_CAR}
    552  *     <li> {@link #EXTRA_DOCK_STATE_DESK}
    553  *     <li> {@link #EXTRA_DOCK_STATE_UNDOCKED}
    554  *     <li> {@link #EXTRA_DONT_KILL_APP}
    555  *     <li> {@link #EXTRA_EMAIL}
    556  *     <li> {@link #EXTRA_INITIAL_INTENTS}
    557  *     <li> {@link #EXTRA_INTENT}
    558  *     <li> {@link #EXTRA_KEY_EVENT}
    559  *     <li> {@link #EXTRA_PHONE_NUMBER}
    560  *     <li> {@link #EXTRA_REMOTE_INTENT_TOKEN}
    561  *     <li> {@link #EXTRA_REPLACING}
    562  *     <li> {@link #EXTRA_SHORTCUT_ICON}
    563  *     <li> {@link #EXTRA_SHORTCUT_ICON_RESOURCE}
    564  *     <li> {@link #EXTRA_SHORTCUT_INTENT}
    565  *     <li> {@link #EXTRA_STREAM}
    566  *     <li> {@link #EXTRA_SHORTCUT_NAME}
    567  *     <li> {@link #EXTRA_SUBJECT}
    568  *     <li> {@link #EXTRA_TEMPLATE}
    569  *     <li> {@link #EXTRA_TEXT}
    570  *     <li> {@link #EXTRA_TITLE}
    571  *     <li> {@link #EXTRA_UID}
    572  * </ul>
    573  *
    574  * <h3>Flags</h3>
    575  *
    576  * <p>These are the possible flags that can be used in the Intent via
    577  * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
    578  * of all possible flags.
    579  */
    580 public class Intent implements Parcelable, Cloneable {
    581     // ---------------------------------------------------------------------
    582     // ---------------------------------------------------------------------
    583     // Standard intent activity actions (see action variable).
    584 
    585     /**
    586      *  Activity Action: Start as a main entry point, does not expect to
    587      *  receive data.
    588      *  <p>Input: nothing
    589      *  <p>Output: nothing
    590      */
    591     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    592     public static final String ACTION_MAIN = "android.intent.action.MAIN";
    593 
    594     /**
    595      * Activity Action: Display the data to the user.  This is the most common
    596      * action performed on data -- it is the generic action you can use on
    597      * a piece of data to get the most reasonable thing to occur.  For example,
    598      * when used on a contacts entry it will view the entry; when used on a
    599      * mailto: URI it will bring up a compose window filled with the information
    600      * supplied by the URI; when used with a tel: URI it will invoke the
    601      * dialer.
    602      * <p>Input: {@link #getData} is URI from which to retrieve data.
    603      * <p>Output: nothing.
    604      */
    605     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    606     public static final String ACTION_VIEW = "android.intent.action.VIEW";
    607 
    608     /**
    609      * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
    610      * performed on a piece of data.
    611      */
    612     public static final String ACTION_DEFAULT = ACTION_VIEW;
    613 
    614     /**
    615      * Used to indicate that some piece of data should be attached to some other
    616      * place.  For example, image data could be attached to a contact.  It is up
    617      * to the recipient to decide where the data should be attached; the intent
    618      * does not specify the ultimate destination.
    619      * <p>Input: {@link #getData} is URI of data to be attached.
    620      * <p>Output: nothing.
    621      */
    622     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    623     public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
    624 
    625     /**
    626      * Activity Action: Provide explicit editable access to the given data.
    627      * <p>Input: {@link #getData} is URI of data to be edited.
    628      * <p>Output: nothing.
    629      */
    630     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    631     public static final String ACTION_EDIT = "android.intent.action.EDIT";
    632 
    633     /**
    634      * Activity Action: Pick an existing item, or insert a new item, and then edit it.
    635      * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
    636      * The extras can contain type specific data to pass through to the editing/creating
    637      * activity.
    638      * <p>Output: The URI of the item that was picked.  This must be a content:
    639      * URI so that any receiver can access it.
    640      */
    641     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    642     public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
    643 
    644     /**
    645      * Activity Action: Pick an item from the data, returning what was selected.
    646      * <p>Input: {@link #getData} is URI containing a directory of data
    647      * (vnd.android.cursor.dir/*) from which to pick an item.
    648      * <p>Output: The URI of the item that was picked.
    649      */
    650     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    651     public static final String ACTION_PICK = "android.intent.action.PICK";
    652 
    653     /**
    654      * Activity Action: Creates a shortcut.
    655      * <p>Input: Nothing.</p>
    656      * <p>Output: An Intent representing the shortcut. The intent must contain three
    657      * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
    658      * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
    659      * (value: ShortcutIconResource).</p>
    660      *
    661      * @see #EXTRA_SHORTCUT_INTENT
    662      * @see #EXTRA_SHORTCUT_NAME
    663      * @see #EXTRA_SHORTCUT_ICON
    664      * @see #EXTRA_SHORTCUT_ICON_RESOURCE
    665      * @see android.content.Intent.ShortcutIconResource
    666      */
    667     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    668     public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
    669 
    670     /**
    671      * The name of the extra used to define the Intent of a shortcut.
    672      *
    673      * @see #ACTION_CREATE_SHORTCUT
    674      */
    675     public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
    676     /**
    677      * The name of the extra used to define the name of a shortcut.
    678      *
    679      * @see #ACTION_CREATE_SHORTCUT
    680      */
    681     public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
    682     /**
    683      * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
    684      *
    685      * @see #ACTION_CREATE_SHORTCUT
    686      */
    687     public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
    688     /**
    689      * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
    690      *
    691      * @see #ACTION_CREATE_SHORTCUT
    692      * @see android.content.Intent.ShortcutIconResource
    693      */
    694     public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
    695             "android.intent.extra.shortcut.ICON_RESOURCE";
    696 
    697     /**
    698      * Represents a shortcut/live folder icon resource.
    699      *
    700      * @see Intent#ACTION_CREATE_SHORTCUT
    701      * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
    702      * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
    703      * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
    704      */
    705     public static class ShortcutIconResource implements Parcelable {
    706         /**
    707          * The package name of the application containing the icon.
    708          */
    709         public String packageName;
    710 
    711         /**
    712          * The resource name of the icon, including package, name and type.
    713          */
    714         public String resourceName;
    715 
    716         /**
    717          * Creates a new ShortcutIconResource for the specified context and resource
    718          * identifier.
    719          *
    720          * @param context The context of the application.
    721          * @param resourceId The resource idenfitier for the icon.
    722          * @return A new ShortcutIconResource with the specified's context package name
    723          *         and icon resource idenfitier.
    724          */
    725         public static ShortcutIconResource fromContext(Context context, int resourceId) {
    726             ShortcutIconResource icon = new ShortcutIconResource();
    727             icon.packageName = context.getPackageName();
    728             icon.resourceName = context.getResources().getResourceName(resourceId);
    729             return icon;
    730         }
    731 
    732         /**
    733          * Used to read a ShortcutIconResource from a Parcel.
    734          */
    735         public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
    736             new Parcelable.Creator<ShortcutIconResource>() {
    737 
    738                 public ShortcutIconResource createFromParcel(Parcel source) {
    739                     ShortcutIconResource icon = new ShortcutIconResource();
    740                     icon.packageName = source.readString();
    741                     icon.resourceName = source.readString();
    742                     return icon;
    743                 }
    744 
    745                 public ShortcutIconResource[] newArray(int size) {
    746                     return new ShortcutIconResource[size];
    747                 }
    748             };
    749 
    750         /**
    751          * No special parcel contents.
    752          */
    753         public int describeContents() {
    754             return 0;
    755         }
    756 
    757         public void writeToParcel(Parcel dest, int flags) {
    758             dest.writeString(packageName);
    759             dest.writeString(resourceName);
    760         }
    761 
    762         @Override
    763         public String toString() {
    764             return resourceName;
    765         }
    766     }
    767 
    768     /**
    769      * Activity Action: Display an activity chooser, allowing the user to pick
    770      * what they want to before proceeding.  This can be used as an alternative
    771      * to the standard activity picker that is displayed by the system when
    772      * you try to start an activity with multiple possible matches, with these
    773      * differences in behavior:
    774      * <ul>
    775      * <li>You can specify the title that will appear in the activity chooser.
    776      * <li>The user does not have the option to make one of the matching
    777      * activities a preferred activity, and all possible activities will
    778      * always be shown even if one of them is currently marked as the
    779      * preferred activity.
    780      * </ul>
    781      * <p>
    782      * This action should be used when the user will naturally expect to
    783      * select an activity in order to proceed.  An example if when not to use
    784      * it is when the user clicks on a "mailto:" link.  They would naturally
    785      * expect to go directly to their mail app, so startActivity() should be
    786      * called directly: it will
    787      * either launch the current preferred app, or put up a dialog allowing the
    788      * user to pick an app to use and optionally marking that as preferred.
    789      * <p>
    790      * In contrast, if the user is selecting a menu item to send a picture
    791      * they are viewing to someone else, there are many different things they
    792      * may want to do at this point: send it through e-mail, upload it to a
    793      * web service, etc.  In this case the CHOOSER action should be used, to
    794      * always present to the user a list of the things they can do, with a
    795      * nice title given by the caller such as "Send this photo with:".
    796      * <p>
    797      * As a convenience, an Intent of this form can be created with the
    798      * {@link #createChooser} function.
    799      * <p>Input: No data should be specified.  get*Extra must have
    800      * a {@link #EXTRA_INTENT} field containing the Intent being executed,
    801      * and can optionally have a {@link #EXTRA_TITLE} field containing the
    802      * title text to display in the chooser.
    803      * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
    804      */
    805     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    806     public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
    807 
    808     /**
    809      * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
    810      *
    811      * @param target The Intent that the user will be selecting an activity
    812      * to perform.
    813      * @param title Optional title that will be displayed in the chooser.
    814      * @return Return a new Intent object that you can hand to
    815      * {@link Context#startActivity(Intent) Context.startActivity()} and
    816      * related methods.
    817      */
    818     public static Intent createChooser(Intent target, CharSequence title) {
    819         Intent intent = new Intent(ACTION_CHOOSER);
    820         intent.putExtra(EXTRA_INTENT, target);
    821         if (title != null) {
    822             intent.putExtra(EXTRA_TITLE, title);
    823         }
    824         return intent;
    825     }
    826     /**
    827      * Activity Action: Allow the user to select a particular kind of data and
    828      * return it.  This is different than {@link #ACTION_PICK} in that here we
    829      * just say what kind of data is desired, not a URI of existing data from
    830      * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
    831      * create the data as it runs (for example taking a picture or recording a
    832      * sound), let them browser over the web and download the desired data,
    833      * etc.
    834      * <p>
    835      * There are two main ways to use this action: if you want an specific kind
    836      * of data, such as a person contact, you set the MIME type to the kind of
    837      * data you want and launch it with {@link Context#startActivity(Intent)}.
    838      * The system will then launch the best application to select that kind
    839      * of data for you.
    840      * <p>
    841      * You may also be interested in any of a set of types of content the user
    842      * can pick.  For example, an e-mail application that wants to allow the
    843      * user to add an attachment to an e-mail message can use this action to
    844      * bring up a list of all of the types of content the user can attach.
    845      * <p>
    846      * In this case, you should wrap the GET_CONTENT intent with a chooser
    847      * (through {@link #createChooser}), which will give the proper interface
    848      * for the user to pick how to send your data and allow you to specify
    849      * a prompt indicating what they are doing.  You will usually specify a
    850      * broad MIME type (such as image/* or {@literal *}/*), resulting in a
    851      * broad range of content types the user can select from.
    852      * <p>
    853      * When using such a broad GET_CONTENT action, it is often desireable to
    854      * only pick from data that can be represented as a stream.  This is
    855      * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
    856      * <p>
    857      * Input: {@link #getType} is the desired MIME type to retrieve.  Note
    858      * that no URI is supplied in the intent, as there are no constraints on
    859      * where the returned data originally comes from.  You may also include the
    860      * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
    861      * opened as a stream.
    862      * <p>
    863      * Output: The URI of the item that was picked.  This must be a content:
    864      * URI so that any receiver can access it.
    865      */
    866     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    867     public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
    868     /**
    869      * Activity Action: Dial a number as specified by the data.  This shows a
    870      * UI with the number being dialed, allowing the user to explicitly
    871      * initiate the call.
    872      * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
    873      * is URI of a phone number to be dialed or a tel: URI of an explicit phone
    874      * number.
    875      * <p>Output: nothing.
    876      */
    877     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    878     public static final String ACTION_DIAL = "android.intent.action.DIAL";
    879     /**
    880      * Activity Action: Perform a call to someone specified by the data.
    881      * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
    882      * is URI of a phone number to be dialed or a tel: URI of an explicit phone
    883      * number.
    884      * <p>Output: nothing.
    885      *
    886      * <p>Note: there will be restrictions on which applications can initiate a
    887      * call; most applications should use the {@link #ACTION_DIAL}.
    888      * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
    889      * numbers.  Applications can <strong>dial</strong> emergency numbers using
    890      * {@link #ACTION_DIAL}, however.
    891      */
    892     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    893     public static final String ACTION_CALL = "android.intent.action.CALL";
    894     /**
    895      * Activity Action: Perform a call to an emergency number specified by the
    896      * data.
    897      * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
    898      * tel: URI of an explicit phone number.
    899      * <p>Output: nothing.
    900      * @hide
    901      */
    902     public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
    903     /**
    904      * Activity action: Perform a call to any number (emergency or not)
    905      * specified by the data.
    906      * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
    907      * tel: URI of an explicit phone number.
    908      * <p>Output: nothing.
    909      * @hide
    910      */
    911     public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
    912     /**
    913      * Activity Action: Send a message to someone specified by the data.
    914      * <p>Input: {@link #getData} is URI describing the target.
    915      * <p>Output: nothing.
    916      */
    917     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    918     public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
    919     /**
    920      * Activity Action: Deliver some data to someone else.  Who the data is
    921      * being delivered to is not specified; it is up to the receiver of this
    922      * action to ask the user where the data should be sent.
    923      * <p>
    924      * When launching a SEND intent, you should usually wrap it in a chooser
    925      * (through {@link #createChooser}), which will give the proper interface
    926      * for the user to pick how to send your data and allow you to specify
    927      * a prompt indicating what they are doing.
    928      * <p>
    929      * Input: {@link #getType} is the MIME type of the data being sent.
    930      * get*Extra can have either a {@link #EXTRA_TEXT}
    931      * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
    932      * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
    933      * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
    934      * if the MIME type is unknown (this will only allow senders that can
    935      * handle generic data streams).
    936      * <p>
    937      * Optional standard extras, which may be interpreted by some recipients as
    938      * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
    939      * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
    940      * <p>
    941      * Output: nothing.
    942      */
    943     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    944     public static final String ACTION_SEND = "android.intent.action.SEND";
    945     /**
    946      * Activity Action: Deliver multiple data to someone else.
    947      * <p>
    948      * Like ACTION_SEND, except the data is multiple.
    949      * <p>
    950      * Input: {@link #getType} is the MIME type of the data being sent.
    951      * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
    952      * #EXTRA_STREAM} field, containing the data to be sent.
    953      * <p>
    954      * Multiple types are supported, and receivers should handle mixed types
    955      * whenever possible. The right way for the receiver to check them is to
    956      * use the content resolver on each URI. The intent sender should try to
    957      * put the most concrete mime type in the intent type, but it can fall
    958      * back to {@literal <type>/*} or {@literal *}/* as needed.
    959      * <p>
    960      * e.g. if you are sending image/jpg and image/jpg, the intent's type can
    961      * be image/jpg, but if you are sending image/jpg and image/png, then the
    962      * intent's type should be image/*.
    963      * <p>
    964      * Optional standard extras, which may be interpreted by some recipients as
    965      * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
    966      * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
    967      * <p>
    968      * Output: nothing.
    969      */
    970     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    971     public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
    972     /**
    973      * Activity Action: Handle an incoming phone call.
    974      * <p>Input: nothing.
    975      * <p>Output: nothing.
    976      */
    977     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    978     public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
    979     /**
    980      * Activity Action: Insert an empty item into the given container.
    981      * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
    982      * in which to place the data.
    983      * <p>Output: URI of the new data that was created.
    984      */
    985     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    986     public static final String ACTION_INSERT = "android.intent.action.INSERT";
    987     /**
    988      * Activity Action: Delete the given data from its container.
    989      * <p>Input: {@link #getData} is URI of data to be deleted.
    990      * <p>Output: nothing.
    991      */
    992     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    993     public static final String ACTION_DELETE = "android.intent.action.DELETE";
    994     /**
    995      * Activity Action: Run the data, whatever that means.
    996      * <p>Input: ?  (Note: this is currently specific to the test harness.)
    997      * <p>Output: nothing.
    998      */
    999     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1000     public static final String ACTION_RUN = "android.intent.action.RUN";
   1001     /**
   1002      * Activity Action: Perform a data synchronization.
   1003      * <p>Input: ?
   1004      * <p>Output: ?
   1005      */
   1006     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1007     public static final String ACTION_SYNC = "android.intent.action.SYNC";
   1008     /**
   1009      * Activity Action: Pick an activity given an intent, returning the class
   1010      * selected.
   1011      * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
   1012      * used with {@link PackageManager#queryIntentActivities} to determine the
   1013      * set of activities from which to pick.
   1014      * <p>Output: Class name of the activity that was selected.
   1015      */
   1016     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1017     public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
   1018     /**
   1019      * Activity Action: Perform a search.
   1020      * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
   1021      * is the text to search for.  If empty, simply
   1022      * enter your search results Activity with the search UI activated.
   1023      * <p>Output: nothing.
   1024      */
   1025     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1026     public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
   1027     /**
   1028      * Activity Action: Start the platform-defined tutorial
   1029      * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
   1030      * is the text to search for.  If empty, simply
   1031      * enter your search results Activity with the search UI activated.
   1032      * <p>Output: nothing.
   1033      */
   1034     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1035     public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
   1036     /**
   1037      * Activity Action: Perform a web search.
   1038      * <p>
   1039      * Input: {@link android.app.SearchManager#QUERY
   1040      * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
   1041      * a url starts with http or https, the site will be opened. If it is plain
   1042      * text, Google search will be applied.
   1043      * <p>
   1044      * Output: nothing.
   1045      */
   1046     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1047     public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
   1048     /**
   1049      * Activity Action: List all available applications
   1050      * <p>Input: Nothing.
   1051      * <p>Output: nothing.
   1052      */
   1053     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1054     public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
   1055     /**
   1056      * Activity Action: Show settings for choosing wallpaper
   1057      * <p>Input: Nothing.
   1058      * <p>Output: Nothing.
   1059      */
   1060     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1061     public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
   1062 
   1063     /**
   1064      * Activity Action: Show activity for reporting a bug.
   1065      * <p>Input: Nothing.
   1066      * <p>Output: Nothing.
   1067      */
   1068     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1069     public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
   1070 
   1071     /**
   1072      *  Activity Action: Main entry point for factory tests.  Only used when
   1073      *  the device is booting in factory test node.  The implementing package
   1074      *  must be installed in the system image.
   1075      *  <p>Input: nothing
   1076      *  <p>Output: nothing
   1077      */
   1078     public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
   1079 
   1080     /**
   1081      * Activity Action: The user pressed the "call" button to go to the dialer
   1082      * or other appropriate UI for placing a call.
   1083      * <p>Input: Nothing.
   1084      * <p>Output: Nothing.
   1085      */
   1086     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1087     public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
   1088 
   1089     /**
   1090      * Activity Action: Start Voice Command.
   1091      * <p>Input: Nothing.
   1092      * <p>Output: Nothing.
   1093      */
   1094     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1095     public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
   1096 
   1097     /**
   1098      * Activity Action: Start action associated with long pressing on the
   1099      * search key.
   1100      * <p>Input: Nothing.
   1101      * <p>Output: Nothing.
   1102      */
   1103     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1104     public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
   1105 
   1106     /**
   1107      * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
   1108      * This intent is delivered to the package which installed the application, usually
   1109      * the Market.
   1110      * <p>Input: No data is specified. The bug report is passed in using
   1111      * an {@link #EXTRA_BUG_REPORT} field.
   1112      * <p>Output: Nothing.
   1113      * @hide
   1114      */
   1115     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1116     public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
   1117 
   1118     /**
   1119      * Activity Action: Show power usage information to the user.
   1120      * <p>Input: Nothing.
   1121      * <p>Output: Nothing.
   1122      */
   1123     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1124     public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
   1125 
   1126     /**
   1127      * Activity Action: Setup wizard to launch after a platform update.  This
   1128      * activity should have a string meta-data field associated with it,
   1129      * {@link #METADATA_SETUP_VERSION}, which defines the current version of
   1130      * the platform for setup.  The activity will be launched only if
   1131      * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
   1132      * same value.
   1133      * <p>Input: Nothing.
   1134      * <p>Output: Nothing.
   1135      * @hide
   1136      */
   1137     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1138     public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
   1139 
   1140     /**
   1141      * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
   1142      * describing the last run version of the platform that was setup.
   1143      * @hide
   1144      */
   1145     public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
   1146 
   1147     // ---------------------------------------------------------------------
   1148     // ---------------------------------------------------------------------
   1149     // Standard intent broadcast actions (see action variable).
   1150 
   1151     /**
   1152      * Broadcast Action: Sent after the screen turns off.
   1153      *
   1154      * <p class="note">This is a protected intent that can only be sent
   1155      * by the system.
   1156      */
   1157     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1158     public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
   1159     /**
   1160      * Broadcast Action: Sent after the screen turns on.
   1161      *
   1162      * <p class="note">This is a protected intent that can only be sent
   1163      * by the system.
   1164      */
   1165     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1166     public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
   1167 
   1168     /**
   1169      * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
   1170      * keyguard is gone).
   1171      *
   1172      * <p class="note">This is a protected intent that can only be sent
   1173      * by the system.
   1174      */
   1175     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1176     public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
   1177 
   1178     /**
   1179      * Broadcast Action: The current time has changed.  Sent every
   1180      * minute.  You can <em>not</em> receive this through components declared
   1181      * in manifests, only by exlicitly registering for it with
   1182      * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   1183      * Context.registerReceiver()}.
   1184      *
   1185      * <p class="note">This is a protected intent that can only be sent
   1186      * by the system.
   1187      */
   1188     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1189     public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
   1190     /**
   1191      * Broadcast Action: The time was set.
   1192      */
   1193     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1194     public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
   1195     /**
   1196      * Broadcast Action: The date has changed.
   1197      */
   1198     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1199     public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
   1200     /**
   1201      * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
   1202      * <ul>
   1203      *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
   1204      * </ul>
   1205      *
   1206      * <p class="note">This is a protected intent that can only be sent
   1207      * by the system.
   1208      */
   1209     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1210     public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
   1211     /**
   1212      * Alarm Changed Action: This is broadcast when the AlarmClock
   1213      * application's alarm is set or unset.  It is used by the
   1214      * AlarmClock application and the StatusBar service.
   1215      * @hide
   1216      */
   1217     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1218     public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
   1219     /**
   1220      * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
   1221      * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
   1222      * @hide
   1223      */
   1224     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1225     public static final String ACTION_SYNC_STATE_CHANGED
   1226             = "android.intent.action.SYNC_STATE_CHANGED";
   1227     /**
   1228      * Broadcast Action: This is broadcast once, after the system has finished
   1229      * booting.  It can be used to perform application-specific initialization,
   1230      * such as installing alarms.  You must hold the
   1231      * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
   1232      * in order to receive this broadcast.
   1233      *
   1234      * <p class="note">This is a protected intent that can only be sent
   1235      * by the system.
   1236      */
   1237     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1238     public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
   1239     /**
   1240      * Broadcast Action: This is broadcast when a user action should request a
   1241      * temporary system dialog to dismiss.  Some examples of temporary system
   1242      * dialogs are the notification window-shade and the recent tasks dialog.
   1243      */
   1244     public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
   1245     /**
   1246      * Broadcast Action: Trigger the download and eventual installation
   1247      * of a package.
   1248      * <p>Input: {@link #getData} is the URI of the package file to download.
   1249      *
   1250      * <p class="note">This is a protected intent that can only be sent
   1251      * by the system.
   1252      */
   1253     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1254     public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
   1255     /**
   1256      * Broadcast Action: A new application package has been installed on the
   1257      * device. The data contains the name of the package.  Note that the
   1258      * newly installed package does <em>not</em> receive this broadcast.
   1259      * <p>My include the following extras:
   1260      * <ul>
   1261      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
   1262      * <li> {@link #EXTRA_REPLACING} is set to true if this is following
   1263      * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
   1264      * </ul>
   1265      *
   1266      * <p class="note">This is a protected intent that can only be sent
   1267      * by the system.
   1268      */
   1269     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1270     public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
   1271     /**
   1272      * Broadcast Action: A new version of an application package has been
   1273      * installed, replacing an existing version that was previously installed.
   1274      * The data contains the name of the package.
   1275      * <p>My include the following extras:
   1276      * <ul>
   1277      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
   1278      * </ul>
   1279      *
   1280      * <p class="note">This is a protected intent that can only be sent
   1281      * by the system.
   1282      */
   1283     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1284     public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
   1285     /**
   1286      * Broadcast Action: An existing application package has been removed from
   1287      * the device.  The data contains the name of the package.  The package
   1288      * that is being installed does <em>not</em> receive this Intent.
   1289      * <ul>
   1290      * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
   1291      * to the package.
   1292      * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
   1293      * application -- data and code -- is being removed.
   1294      * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
   1295      * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
   1296      * </ul>
   1297      *
   1298      * <p class="note">This is a protected intent that can only be sent
   1299      * by the system.
   1300      */
   1301     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1302     public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
   1303     /**
   1304      * Broadcast Action: An existing application package has been changed (e.g.
   1305      * a component has been enabled or disabled).  The data contains the name of
   1306      * the package.
   1307      * <ul>
   1308      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1309      * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
   1310      * of the changed components.
   1311      * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
   1312      * default action of restarting the application.
   1313      * </ul>
   1314      *
   1315      * <p class="note">This is a protected intent that can only be sent
   1316      * by the system.
   1317      */
   1318     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1319     public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
   1320     /**
   1321      * @hide
   1322      * Broadcast Action: Ask system services if there is any reason to
   1323      * restart the given package.  The data contains the name of the
   1324      * package.
   1325      * <ul>
   1326      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1327      * <li> {@link #EXTRA_PACKAGES} String array of all packages to check.
   1328      * </ul>
   1329      *
   1330      * <p class="note">This is a protected intent that can only be sent
   1331      * by the system.
   1332      */
   1333     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1334     public static final String ACTION_QUERY_PACKAGE_RESTART = "android.intent.action.QUERY_PACKAGE_RESTART";
   1335     /**
   1336      * Broadcast Action: The user has restarted a package, and all of its
   1337      * processes have been killed.  All runtime state
   1338      * associated with it (processes, alarms, notifications, etc) should
   1339      * be removed.  Note that the restarted package does <em>not</em>
   1340      * receive this broadcast.
   1341      * The data contains the name of the package.
   1342      * <ul>
   1343      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1344      * </ul>
   1345      *
   1346      * <p class="note">This is a protected intent that can only be sent
   1347      * by the system.
   1348      */
   1349     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1350     public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
   1351     /**
   1352      * Broadcast Action: The user has cleared the data of a package.  This should
   1353      * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
   1354      * its persistent data is erased and this broadcast sent.
   1355      * Note that the cleared package does <em>not</em>
   1356      * receive this broadcast. The data contains the name of the package.
   1357      * <ul>
   1358      * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
   1359      * </ul>
   1360      *
   1361      * <p class="note">This is a protected intent that can only be sent
   1362      * by the system.
   1363      */
   1364     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1365     public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
   1366     /**
   1367      * Broadcast Action: A user ID has been removed from the system.  The user
   1368      * ID number is stored in the extra data under {@link #EXTRA_UID}.
   1369      *
   1370      * <p class="note">This is a protected intent that can only be sent
   1371      * by the system.
   1372      */
   1373     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1374     public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
   1375 
   1376     /**
   1377      * Broadcast Action: Resources for a set of packages (which were
   1378      * previously unavailable) are currently
   1379      * available since the media on which they exist is available.
   1380      * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
   1381      * list of packages whose availability changed.
   1382      * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
   1383      * list of uids of packages whose availability changed.
   1384      * Note that the
   1385      * packages in this list do <em>not</em> receive this broadcast.
   1386      * The specified set of packages are now available on the system.
   1387      * <p>Includes the following extras:
   1388      * <ul>
   1389      * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
   1390      * whose resources(were previously unavailable) are currently available.
   1391      * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the
   1392      * packages whose resources(were previously unavailable)
   1393      * are  currently available.
   1394      * </ul>
   1395      *
   1396      * <p class="note">This is a protected intent that can only be sent
   1397      * by the system.
   1398      */
   1399     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1400     public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE =
   1401         "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
   1402 
   1403     /**
   1404      * Broadcast Action: Resources for a set of packages are currently
   1405      * unavailable since the media on which they exist is unavailable.
   1406      * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
   1407      * list of packages whose availability changed.
   1408      * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
   1409      * list of uids of packages whose availability changed.
   1410      * The specified set of packages can no longer be
   1411      * launched and are practically unavailable on the system.
   1412      * <p>Inclues the following extras:
   1413      * <ul>
   1414      * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
   1415      * whose resources are no longer available.
   1416      * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages
   1417      * whose resources are no longer available.
   1418      * </ul>
   1419      *
   1420      * <p class="note">This is a protected intent that can only be sent
   1421      * by the system.
   1422      */
   1423     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1424     public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE =
   1425         "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE";
   1426 
   1427     /**
   1428      * Broadcast Action:  The current system wallpaper has changed.  See
   1429      * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
   1430      */
   1431     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1432     public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
   1433     /**
   1434      * Broadcast Action: The current device {@link android.content.res.Configuration}
   1435      * (orientation, locale, etc) has changed.  When such a change happens, the
   1436      * UIs (view hierarchy) will need to be rebuilt based on this new
   1437      * information; for the most part, applications don't need to worry about
   1438      * this, because the system will take care of stopping and restarting the
   1439      * application to make sure it sees the new changes.  Some system code that
   1440      * can not be restarted will need to watch for this action and handle it
   1441      * appropriately.
   1442      *
   1443      * <p class="note">
   1444      * You can <em>not</em> receive this through components declared
   1445      * in manifests, only by explicitly registering for it with
   1446      * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   1447      * Context.registerReceiver()}.
   1448      *
   1449      * <p class="note">This is a protected intent that can only be sent
   1450      * by the system.
   1451      *
   1452      * @see android.content.res.Configuration
   1453      */
   1454     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1455     public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
   1456     /**
   1457      * Broadcast Action: The current device's locale has changed.
   1458      *
   1459      * <p class="note">This is a protected intent that can only be sent
   1460      * by the system.
   1461      */
   1462     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1463     public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
   1464     /**
   1465      * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
   1466      * charging state, level, and other information about the battery.
   1467      * See {@link android.os.BatteryManager} for documentation on the
   1468      * contents of the Intent.
   1469      *
   1470      * <p class="note">
   1471      * You can <em>not</em> receive this through components declared
   1472      * in manifests, only by explicitly registering for it with
   1473      * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
   1474      * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
   1475      * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
   1476      * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
   1477      * broadcasts that are sent and can be received through manifest
   1478      * receivers.
   1479      *
   1480      * <p class="note">This is a protected intent that can only be sent
   1481      * by the system.
   1482      */
   1483     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1484     public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
   1485     /**
   1486      * Broadcast Action:  Indicates low battery condition on the device.
   1487      * This broadcast corresponds to the "Low battery warning" system dialog.
   1488      *
   1489      * <p class="note">This is a protected intent that can only be sent
   1490      * by the system.
   1491      */
   1492     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1493     public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
   1494     /**
   1495      * Broadcast Action:  Indicates the battery is now okay after being low.
   1496      * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
   1497      * gone back up to an okay state.
   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_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
   1504     /**
   1505      * Broadcast Action:  External power has been connected to the device.
   1506      * This is intended for applications that wish to register specifically to this notification.
   1507      * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
   1508      * stay active to receive this notification.  This action can be used to implement actions
   1509      * that wait until power is available to trigger.
   1510      *
   1511      * <p class="note">This is a protected intent that can only be sent
   1512      * by the system.
   1513      */
   1514     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1515     public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
   1516     /**
   1517      * Broadcast Action:  External power has been removed from the device.
   1518      * This is intended for applications that wish to register specifically to this notification.
   1519      * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
   1520      * stay active to receive this notification.  This action can be used to implement actions
   1521      * that wait until power is available to trigger.
   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_POWER_DISCONNECTED =
   1528             "android.intent.action.ACTION_POWER_DISCONNECTED";
   1529     /**
   1530      * Broadcast Action:  Device is shutting down.
   1531      * This is broadcast when the device is being shut down (completely turned
   1532      * off, not sleeping).  Once the broadcast is complete, the final shutdown
   1533      * will proceed and all unsaved data lost.  Apps will not normally need
   1534      * to handle this, since the foreground activity will be paused as well.
   1535      *
   1536      * <p class="note">This is a protected intent that can only be sent
   1537      * by the system.
   1538      */
   1539     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1540     public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
   1541     /**
   1542      * Activity Action:  Start this activity to request system shutdown.
   1543      * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
   1544      * to request confirmation from the user before shutting down.
   1545      *
   1546      * <p class="note">This is a protected intent that can only be sent
   1547      * by the system.
   1548      *
   1549      * {@hide}
   1550      */
   1551     public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
   1552     /**
   1553      * Broadcast Action:  A sticky broadcast that indicates low memory
   1554      * condition on the device
   1555      *
   1556      * <p class="note">This is a protected intent that can only be sent
   1557      * by the system.
   1558      */
   1559     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1560     public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
   1561     /**
   1562      * Broadcast Action:  Indicates low memory condition on the device no longer exists
   1563      *
   1564      * <p class="note">This is a protected intent that can only be sent
   1565      * by the system.
   1566      */
   1567     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1568     public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
   1569     /**
   1570      * Broadcast Action:  A sticky broadcast that indicates a memory full
   1571      * condition on the device. This is intended for activities that want
   1572      * to be able to fill the data partition completely, leaving only
   1573      * enough free space to prevent system-wide SQLite failures.
   1574      *
   1575      * <p class="note">This is a protected intent that can only be sent
   1576      * by the system.
   1577      *
   1578      * {@hide}
   1579      */
   1580     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1581     public static final String ACTION_DEVICE_STORAGE_FULL = "android.intent.action.DEVICE_STORAGE_FULL";
   1582     /**
   1583      * Broadcast Action:  Indicates memory full condition on the device
   1584      * no longer exists.
   1585      *
   1586      * <p class="note">This is a protected intent that can only be sent
   1587      * by the system.
   1588      *
   1589      * {@hide}
   1590      */
   1591     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1592     public static final String ACTION_DEVICE_STORAGE_NOT_FULL = "android.intent.action.DEVICE_STORAGE_NOT_FULL";
   1593     /**
   1594      * Broadcast Action:  Indicates low memory condition notification acknowledged by user
   1595      * and package management should be started.
   1596      * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
   1597      * notification.
   1598      */
   1599     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1600     public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
   1601     /**
   1602      * Broadcast Action:  The device has entered USB Mass Storage mode.
   1603      * This is used mainly for the USB Settings panel.
   1604      * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
   1605      * when the SD card file system is mounted or unmounted
   1606      */
   1607     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1608     public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
   1609 
   1610     /**
   1611      * Broadcast Action:  The device has exited USB Mass Storage mode.
   1612      * This is used mainly for the USB Settings panel.
   1613      * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
   1614      * when the SD card file system is mounted or unmounted
   1615      */
   1616     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1617     public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
   1618 
   1619     /**
   1620      * Broadcast Action:  External media has been removed.
   1621      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1622      */
   1623     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1624     public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
   1625 
   1626     /**
   1627      * Broadcast Action:  External media is present, but not mounted at its mount point.
   1628      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1629      */
   1630     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1631     public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
   1632 
   1633     /**
   1634      * Broadcast Action:  External media is present, and being disk-checked
   1635      * The path to the mount point for the checking media is contained in the Intent.mData field.
   1636      */
   1637     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1638     public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
   1639 
   1640     /**
   1641      * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
   1642      * The path to the mount point for the checking media is contained in the Intent.mData field.
   1643      */
   1644     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1645     public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
   1646 
   1647     /**
   1648      * Broadcast Action:  External media is present and mounted at its mount point.
   1649      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1650      * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
   1651      * media was mounted read only.
   1652      */
   1653     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1654     public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
   1655 
   1656     /**
   1657      * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
   1658      * The path to the mount point for the shared media is contained in the Intent.mData field.
   1659      */
   1660     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1661     public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
   1662 
   1663     /**
   1664      * Broadcast Action:  External media is no longer being shared via USB mass storage.
   1665      * The path to the mount point for the previously shared media is contained in the Intent.mData field.
   1666      *
   1667      * @hide
   1668      */
   1669     public static final String ACTION_MEDIA_UNSHARED = "android.intent.action.MEDIA_UNSHARED";
   1670 
   1671     /**
   1672      * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
   1673      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1674      */
   1675     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1676     public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
   1677 
   1678     /**
   1679      * Broadcast Action:  External media is present but cannot be mounted.
   1680      * The path to the mount point for the removed media is contained in the Intent.mData field.
   1681      */
   1682     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1683     public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
   1684 
   1685    /**
   1686      * Broadcast Action:  User has expressed the desire to remove the external storage media.
   1687      * Applications should close all files they have open within the mount point when they receive this intent.
   1688      * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
   1689      */
   1690     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1691     public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
   1692 
   1693     /**
   1694      * Broadcast Action:  The media scanner has started scanning a directory.
   1695      * The path to the directory being scanned is contained in the Intent.mData field.
   1696      */
   1697     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1698     public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
   1699 
   1700    /**
   1701      * Broadcast Action:  The media scanner has finished scanning a directory.
   1702      * The path to the scanned directory is contained in the Intent.mData field.
   1703      */
   1704     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1705     public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
   1706 
   1707    /**
   1708      * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
   1709      * The path to the file is contained in the Intent.mData field.
   1710      */
   1711     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1712     public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
   1713 
   1714    /**
   1715      * Broadcast Action:  The "Media Button" was pressed.  Includes a single
   1716      * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
   1717      * caused the broadcast.
   1718      */
   1719     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1720     public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
   1721 
   1722     /**
   1723      * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
   1724      * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
   1725      * caused the broadcast.
   1726      */
   1727     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1728     public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
   1729 
   1730     // *** NOTE: @todo(*) The following really should go into a more domain-specific
   1731     // location; they are not general-purpose actions.
   1732 
   1733     /**
   1734      * Broadcast Action: An GTalk connection has been established.
   1735      */
   1736     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1737     public static final String ACTION_GTALK_SERVICE_CONNECTED =
   1738             "android.intent.action.GTALK_CONNECTED";
   1739 
   1740     /**
   1741      * Broadcast Action: An GTalk connection has been disconnected.
   1742      */
   1743     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1744     public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
   1745             "android.intent.action.GTALK_DISCONNECTED";
   1746 
   1747     /**
   1748      * Broadcast Action: An input method has been changed.
   1749      */
   1750     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1751     public static final String ACTION_INPUT_METHOD_CHANGED =
   1752             "android.intent.action.INPUT_METHOD_CHANGED";
   1753 
   1754     /**
   1755      * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
   1756      * more radios have been turned off or on. The intent will have the following extra value:</p>
   1757      * <ul>
   1758      *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
   1759      *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
   1760      *   turned off</li>
   1761      * </ul>
   1762      *
   1763      * <p class="note">This is a protected intent that can only be sent
   1764      * by the system.
   1765      */
   1766     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1767     public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
   1768 
   1769     /**
   1770      * Broadcast Action: Some content providers have parts of their namespace
   1771      * where they publish new events or items that the user may be especially
   1772      * interested in. For these things, they may broadcast this action when the
   1773      * set of interesting items change.
   1774      *
   1775      * For example, GmailProvider sends this notification when the set of unread
   1776      * mail in the inbox changes.
   1777      *
   1778      * <p>The data of the intent identifies which part of which provider
   1779      * changed. When queried through the content resolver, the data URI will
   1780      * return the data set in question.
   1781      *
   1782      * <p>The intent will have the following extra values:
   1783      * <ul>
   1784      *   <li><em>count</em> - The number of items in the data set. This is the
   1785      *       same as the number of items in the cursor returned by querying the
   1786      *       data URI. </li>
   1787      * </ul>
   1788      *
   1789      * This intent will be sent at boot (if the count is non-zero) and when the
   1790      * data set changes. It is possible for the data set to change without the
   1791      * count changing (for example, if a new unread message arrives in the same
   1792      * sync operation in which a message is archived). The phone should still
   1793      * ring/vibrate/etc as normal in this case.
   1794      */
   1795     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1796     public static final String ACTION_PROVIDER_CHANGED =
   1797             "android.intent.action.PROVIDER_CHANGED";
   1798 
   1799     /**
   1800      * Broadcast Action: Wired Headset plugged in or unplugged.
   1801      *
   1802      * <p>The intent will have the following extra values:
   1803      * <ul>
   1804      *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
   1805      *   <li><em>name</em> - Headset type, human readable string </li>
   1806      *   <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
   1807      * </ul>
   1808      * </ul>
   1809      */
   1810     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1811     public static final String ACTION_HEADSET_PLUG =
   1812             "android.intent.action.HEADSET_PLUG";
   1813 
   1814     /**
   1815      * Broadcast Action: An outgoing call is about to be placed.
   1816      *
   1817      * <p>The Intent will have the following extra value:
   1818      * <ul>
   1819      *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
   1820      *       the phone number originally intended to be dialed.</li>
   1821      * </ul>
   1822      * <p>Once the broadcast is finished, the resultData is used as the actual
   1823      * number to call.  If  <code>null</code>, no call will be placed.</p>
   1824      * <p>It is perfectly acceptable for multiple receivers to process the
   1825      * outgoing call in turn: for example, a parental control application
   1826      * might verify that the user is authorized to place the call at that
   1827      * time, then a number-rewriting application might add an area code if
   1828      * one was not specified.</p>
   1829      * <p>For consistency, any receiver whose purpose is to prohibit phone
   1830      * calls should have a priority of 0, to ensure it will see the final
   1831      * phone number to be dialed.
   1832      * Any receiver whose purpose is to rewrite phone numbers to be called
   1833      * should have a positive priority.
   1834      * Negative priorities are reserved for the system for this broadcast;
   1835      * using them may cause problems.</p>
   1836      * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
   1837      * abort the broadcast.</p>
   1838      * <p>Emergency calls cannot be intercepted using this mechanism, and
   1839      * other calls cannot be modified to call emergency numbers using this
   1840      * mechanism.
   1841      * <p>You must hold the
   1842      * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
   1843      * permission to receive this Intent.</p>
   1844      *
   1845      * <p class="note">This is a protected intent that can only be sent
   1846      * by the system.
   1847      */
   1848     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1849     public static final String ACTION_NEW_OUTGOING_CALL =
   1850             "android.intent.action.NEW_OUTGOING_CALL";
   1851 
   1852     /**
   1853      * Broadcast Action: Have the device reboot.  This is only for use by
   1854      * system code.
   1855      *
   1856      * <p class="note">This is a protected intent that can only be sent
   1857      * by the system.
   1858      */
   1859     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1860     public static final String ACTION_REBOOT =
   1861             "android.intent.action.REBOOT";
   1862 
   1863     /**
   1864      * Broadcast Action:  A sticky broadcast for changes in the physical
   1865      * docking state of the device.
   1866      *
   1867      * <p>The intent will have the following extra values:
   1868      * <ul>
   1869      *   <li><em>{@link #EXTRA_DOCK_STATE}</em> - the current dock
   1870      *       state, indicating which dock the device is physically in.</li>
   1871      * </ul>
   1872      * <p>This is intended for monitoring the current physical dock state.
   1873      * See {@link android.app.UiModeManager} for the normal API dealing with
   1874      * dock mode changes.
   1875      */
   1876     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
   1877     public static final String ACTION_DOCK_EVENT =
   1878             "android.intent.action.DOCK_EVENT";
   1879 
   1880     /**
   1881      * Broadcast Action: a remote intent is to be broadcasted.
   1882      *
   1883      * A remote intent is used for remote RPC between devices. The remote intent
   1884      * is serialized and sent from one device to another device. The receiving
   1885      * device parses the remote intent and broadcasts it. Note that anyone can
   1886      * broadcast a remote intent. However, if the intent receiver of the remote intent
   1887      * does not trust intent broadcasts from arbitrary intent senders, it should require
   1888      * the sender to hold certain permissions so only trusted sender's broadcast will be
   1889      * let through.
   1890      * @hide
   1891      */
   1892     public static final String ACTION_REMOTE_INTENT =
   1893             "com.google.android.c2dm.intent.RECEIVE";
   1894 
   1895     /**
   1896      * Broadcast Action: hook for permforming cleanup after a system update.
   1897      *
   1898      * The broadcast is sent when the system is booting, before the
   1899      * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
   1900      * image.  A receiver for this should do its work and then disable itself
   1901      * so that it does not get run again at the next boot.
   1902      * @hide
   1903      */
   1904     public static final String ACTION_PRE_BOOT_COMPLETED =
   1905             "android.intent.action.PRE_BOOT_COMPLETED";
   1906 
   1907     // ---------------------------------------------------------------------
   1908     // ---------------------------------------------------------------------
   1909     // Standard intent categories (see addCategory()).
   1910 
   1911     /**
   1912      * Set if the activity should be an option for the default action
   1913      * (center press) to perform on a piece of data.  Setting this will
   1914      * hide from the user any activities without it set when performing an
   1915      * action on some data.  Note that this is normal -not- set in the
   1916      * Intent when initiating an action -- it is for use in intent filters
   1917      * specified in packages.
   1918      */
   1919     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1920     public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
   1921     /**
   1922      * Activities that can be safely invoked from a browser must support this
   1923      * category.  For example, if the user is viewing a web page or an e-mail
   1924      * and clicks on a link in the text, the Intent generated execute that
   1925      * link will require the BROWSABLE category, so that only activities
   1926      * supporting this category will be considered as possible actions.  By
   1927      * supporting this category, you are promising that there is nothing
   1928      * damaging (without user intervention) that can happen by invoking any
   1929      * matching Intent.
   1930      */
   1931     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1932     public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
   1933     /**
   1934      * Set if the activity should be considered as an alternative action to
   1935      * the data the user is currently viewing.  See also
   1936      * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
   1937      * applies to the selection in a list of items.
   1938      *
   1939      * <p>Supporting this category means that you would like your activity to be
   1940      * displayed in the set of alternative things the user can do, usually as
   1941      * part of the current activity's options menu.  You will usually want to
   1942      * include a specific label in the &lt;intent-filter&gt; of this action
   1943      * describing to the user what it does.
   1944      *
   1945      * <p>The action of IntentFilter with this category is important in that it
   1946      * describes the specific action the target will perform.  This generally
   1947      * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
   1948      * a specific name such as "com.android.camera.action.CROP.  Only one
   1949      * alternative of any particular action will be shown to the user, so using
   1950      * a specific action like this makes sure that your alternative will be
   1951      * displayed while also allowing other applications to provide their own
   1952      * overrides of that particular action.
   1953      */
   1954     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1955     public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
   1956     /**
   1957      * Set if the activity should be considered as an alternative selection
   1958      * action to the data the user has currently selected.  This is like
   1959      * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
   1960      * of items from which the user can select, giving them alternatives to the
   1961      * default action that will be performed on it.
   1962      */
   1963     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1964     public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
   1965     /**
   1966      * Intended to be used as a tab inside of an containing TabActivity.
   1967      */
   1968     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1969     public static final String CATEGORY_TAB = "android.intent.category.TAB";
   1970     /**
   1971      * Should be displayed in the top-level launcher.
   1972      */
   1973     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1974     public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
   1975     /**
   1976      * Provides information about the package it is in; typically used if
   1977      * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
   1978      * a front-door to the user without having to be shown in the all apps list.
   1979      */
   1980     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1981     public static final String CATEGORY_INFO = "android.intent.category.INFO";
   1982     /**
   1983      * This is the home activity, that is the first activity that is displayed
   1984      * when the device boots.
   1985      */
   1986     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1987     public static final String CATEGORY_HOME = "android.intent.category.HOME";
   1988     /**
   1989      * This activity is a preference panel.
   1990      */
   1991     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1992     public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
   1993     /**
   1994      * This activity is a development preference panel.
   1995      */
   1996     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   1997     public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
   1998     /**
   1999      * Capable of running inside a parent activity container.
   2000      */
   2001     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2002     public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
   2003     /**
   2004      * This activity may be exercised by the monkey or other automated test tools.
   2005      */
   2006     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2007     public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
   2008     /**
   2009      * To be used as a test (not part of the normal user experience).
   2010      */
   2011     public static final String CATEGORY_TEST = "android.intent.category.TEST";
   2012     /**
   2013      * To be used as a unit test (run through the Test Harness).
   2014      */
   2015     public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
   2016     /**
   2017      * To be used as an sample code example (not part of the normal user
   2018      * experience).
   2019      */
   2020     public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
   2021     /**
   2022      * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
   2023      * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
   2024      * when queried, though it is allowable for those columns to be blank.
   2025      */
   2026     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2027     public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
   2028 
   2029     /**
   2030      * To be used as code under test for framework instrumentation tests.
   2031      */
   2032     public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
   2033             "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
   2034     /**
   2035      * An activity to run when device is inserted into a car dock.
   2036      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2037      * information, see {@link android.app.UiModeManager}.
   2038      */
   2039     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2040     public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
   2041     /**
   2042      * An activity to run when device is inserted into a car dock.
   2043      * Used with {@link #ACTION_MAIN} to launch an activity.  For more
   2044      * information, see {@link android.app.UiModeManager}.
   2045      */
   2046     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2047     public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
   2048 
   2049     /**
   2050      * Used to indicate that the activity can be used in a car environment.
   2051      */
   2052     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
   2053     public static final String CATEGORY_CAR_MODE = "android.intent.category.CAR_MODE";
   2054 
   2055     // ---------------------------------------------------------------------
   2056     // ---------------------------------------------------------------------
   2057     // Standard extra data keys.
   2058 
   2059     /**
   2060      * The initial data to place in a newly created record.  Use with
   2061      * {@link #ACTION_INSERT}.  The data here is a Map containing the same
   2062      * fields as would be given to the underlying ContentProvider.insert()
   2063      * call.
   2064      */
   2065     public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
   2066 
   2067     /**
   2068      * A constant CharSequence that is associated with the Intent, used with
   2069      * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
   2070      * this may be a styled CharSequence, so you must use
   2071      * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
   2072      * retrieve it.
   2073      */
   2074     public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
   2075 
   2076     /**
   2077      * A content: URI holding a stream of data associated with the Intent,
   2078      * used with {@link #ACTION_SEND} to supply the data being sent.
   2079      */
   2080     public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
   2081 
   2082     /**
   2083      * A String[] holding e-mail addresses that should be delivered to.
   2084      */
   2085     public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
   2086 
   2087     /**
   2088      * A String[] holding e-mail addresses that should be carbon copied.
   2089      */
   2090     public static final String EXTRA_CC       = "android.intent.extra.CC";
   2091 
   2092     /**
   2093      * A String[] holding e-mail addresses that should be blind carbon copied.
   2094      */
   2095     public static final String EXTRA_BCC      = "android.intent.extra.BCC";
   2096 
   2097     /**
   2098      * A constant string holding the desired subject line of a message.
   2099      */
   2100     public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
   2101 
   2102     /**
   2103      * An Intent describing the choices you would like shown with
   2104      * {@link #ACTION_PICK_ACTIVITY}.
   2105      */
   2106     public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
   2107 
   2108     /**
   2109      * A CharSequence dialog title to provide to the user when used with a
   2110      * {@link #ACTION_CHOOSER}.
   2111      */
   2112     public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
   2113 
   2114     /**
   2115      * A Parcelable[] of {@link Intent} or
   2116      * {@link android.content.pm.LabeledIntent} objects as set with
   2117      * {@link #putExtra(String, Parcelable[])} of additional activities to place
   2118      * a the front of the list of choices, when shown to the user with a
   2119      * {@link #ACTION_CHOOSER}.
   2120      */
   2121     public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
   2122 
   2123     /**
   2124      * A {@link android.view.KeyEvent} object containing the event that
   2125      * triggered the creation of the Intent it is in.
   2126      */
   2127     public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
   2128 
   2129     /**
   2130      * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
   2131      * before shutting down.
   2132      *
   2133      * {@hide}
   2134      */
   2135     public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
   2136 
   2137     /**
   2138      * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
   2139      * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
   2140      * of restarting the application.
   2141      */
   2142     public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
   2143 
   2144     /**
   2145      * A String holding the phone number originally entered in
   2146      * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
   2147      * number to call in a {@link android.content.Intent#ACTION_CALL}.
   2148      */
   2149     public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
   2150 
   2151     /**
   2152      * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
   2153      * intents to supply the uid the package had been assigned.  Also an optional
   2154      * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
   2155      * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
   2156      * purpose.
   2157      */
   2158     public static final String EXTRA_UID = "android.intent.extra.UID";
   2159 
   2160     /**
   2161      * @hide String array of package names.
   2162      */
   2163     public static final String EXTRA_PACKAGES = "android.intent.extra.PACKAGES";
   2164 
   2165     /**
   2166      * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
   2167      * intents to indicate whether this represents a full uninstall (removing
   2168      * both the code and its data) or a partial uninstall (leaving its data,
   2169      * implying that this is an update).
   2170      */
   2171     public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
   2172 
   2173     /**
   2174      * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
   2175      * intents to indicate that this is a replacement of the package, so this
   2176      * broadcast will immediately be followed by an add broadcast for a
   2177      * different version of the same package.
   2178      */
   2179     public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
   2180 
   2181     /**
   2182      * Used as an int extra field in {@link android.app.AlarmManager} intents
   2183      * to tell the application being invoked how many pending alarms are being
   2184      * delievered with the intent.  For one-shot alarms this will always be 1.
   2185      * For recurring alarms, this might be greater than 1 if the device was
   2186      * asleep or powered off at the time an earlier alarm would have been
   2187      * delivered.
   2188      */
   2189     public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
   2190 
   2191     /**
   2192      * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
   2193      * intents to request the dock state.  Possible values are
   2194      * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
   2195      * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
   2196      * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
   2197      */
   2198     public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
   2199 
   2200     /**
   2201      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   2202      * to represent that the phone is not in any dock.
   2203      */
   2204     public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
   2205 
   2206     /**
   2207      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   2208      * to represent that the phone is in a desk dock.
   2209      */
   2210     public static final int EXTRA_DOCK_STATE_DESK = 1;
   2211 
   2212     /**
   2213      * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
   2214      * to represent that the phone is in a car dock.
   2215      */
   2216     public static final int EXTRA_DOCK_STATE_CAR = 2;
   2217 
   2218     /**
   2219      * Boolean that can be supplied as meta-data with a dock activity, to
   2220      * indicate that the dock should take over the home key when it is active.
   2221      */
   2222     public static final String METADATA_DOCK_HOME = "android.dock_home";
   2223 
   2224     /**
   2225      * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
   2226      * the bug report.
   2227      *
   2228      * @hide
   2229      */
   2230     public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
   2231 
   2232     /**
   2233      * Used as a string extra field when sending an intent to PackageInstaller to install a
   2234      * package. Specifies the installer package name; this package will receive the
   2235      * {@link #ACTION_APP_ERROR} intent.
   2236      *
   2237      * @hide
   2238      */
   2239     public static final String EXTRA_INSTALLER_PACKAGE_NAME
   2240             = "android.intent.extra.INSTALLER_PACKAGE_NAME";
   2241 
   2242     /**
   2243      * Used in the extra field in the remote intent. It's astring token passed with the
   2244      * remote intent.
   2245      */
   2246     public static final String EXTRA_REMOTE_INTENT_TOKEN =
   2247             "android.intent.extra.remote_intent_token";
   2248 
   2249     /**
   2250      * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
   2251      * will contain only the first name in the list.
   2252      */
   2253     @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
   2254             "android.intent.extra.changed_component_name";
   2255 
   2256     /**
   2257      * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED},
   2258      * and contains a string array of all of the components that have changed.
   2259      */
   2260     public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
   2261             "android.intent.extra.changed_component_name_list";
   2262 
   2263     /**
   2264      * This field is part of
   2265      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
   2266      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
   2267      * and contains a string array of all of the components that have changed.
   2268      */
   2269     public static final String EXTRA_CHANGED_PACKAGE_LIST =
   2270             "android.intent.extra.changed_package_list";
   2271 
   2272     /**
   2273      * This field is part of
   2274      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
   2275      * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
   2276      * and contains an integer array of uids of all of the components
   2277      * that have changed.
   2278      */
   2279     public static final String EXTRA_CHANGED_UID_LIST =
   2280             "android.intent.extra.changed_uid_list";
   2281 
   2282     /**
   2283      * @hide
   2284      * Magic extra system code can use when binding, to give a label for
   2285      * who it is that has bound to a service.  This is an integer giving
   2286      * a framework string resource that can be displayed to the user.
   2287      */
   2288     public static final String EXTRA_CLIENT_LABEL =
   2289             "android.intent.extra.client_label";
   2290 
   2291     /**
   2292      * @hide
   2293      * Magic extra system code can use when binding, to give a PendingIntent object
   2294      * that can be launched for the user to disable the system's use of this
   2295      * service.
   2296      */
   2297     public static final String EXTRA_CLIENT_INTENT =
   2298             "android.intent.extra.client_intent";
   2299 
   2300     // ---------------------------------------------------------------------
   2301     // ---------------------------------------------------------------------
   2302     // Intent flags (see mFlags variable).
   2303 
   2304     /**
   2305      * If set, the recipient of this Intent will be granted permission to
   2306      * perform read operations on the Uri in the Intent's data.
   2307      */
   2308     public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
   2309     /**
   2310      * If set, the recipient of this Intent will be granted permission to
   2311      * perform write operations on the Uri in the Intent's data.
   2312      */
   2313     public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
   2314     /**
   2315      * Can be set by the caller to indicate that this Intent is coming from
   2316      * a background operation, not from direct user interaction.
   2317      */
   2318     public static final int FLAG_FROM_BACKGROUND = 0x00000004;
   2319     /**
   2320      * A flag you can enable for debugging: when set, log messages will be
   2321      * printed during the resolution of this intent to show you what has
   2322      * been found to create the final resolved list.
   2323      */
   2324     public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
   2325 
   2326     /**
   2327      * If set, the new activity is not kept in the history stack.  As soon as
   2328      * the user navigates away from it, the activity is finished.  This may also
   2329      * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
   2330      * noHistory} attribute.
   2331      */
   2332     public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
   2333     /**
   2334      * If set, the activity will not be launched if it is already running
   2335      * at the top of the history stack.
   2336      */
   2337     public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
   2338     /**
   2339      * If set, this activity will become the start of a new task on this
   2340      * history stack.  A task (from the activity that started it to the
   2341      * next task activity) defines an atomic group of activities that the
   2342      * user can move to.  Tasks can be moved to the foreground and background;
   2343      * all of the activities inside of a particular task always remain in
   2344      * the same order.  See
   2345      * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
   2346      * Activities and Tasks</a> for more details on tasks.
   2347      *
   2348      * <p>This flag is generally used by activities that want
   2349      * to present a "launcher" style behavior: they give the user a list of
   2350      * separate things that can be done, which otherwise run completely
   2351      * independently of the activity launching them.
   2352      *
   2353      * <p>When using this flag, if a task is already running for the activity
   2354      * you are now starting, then a new activity will not be started; instead,
   2355      * the current task will simply be brought to the front of the screen with
   2356      * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
   2357      * to disable this behavior.
   2358      *
   2359      * <p>This flag can not be used when the caller is requesting a result from
   2360      * the activity being launched.
   2361      */
   2362     public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
   2363     /**
   2364      * <strong>Do not use this flag unless you are implementing your own
   2365      * top-level application launcher.</strong>  Used in conjunction with
   2366      * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
   2367      * behavior of bringing an existing task to the foreground.  When set,
   2368      * a new task is <em>always</em> started to host the Activity for the
   2369      * Intent, regardless of whether there is already an existing task running
   2370      * the same thing.
   2371      *
   2372      * <p><strong>Because the default system does not include graphical task management,
   2373      * you should not use this flag unless you provide some way for a user to
   2374      * return back to the tasks you have launched.</strong>
   2375      *
   2376      * <p>This flag is ignored if
   2377      * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
   2378      *
   2379      * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
   2380      * Activities and Tasks</a> for more details on tasks.
   2381      */
   2382     public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
   2383     /**
   2384      * If set, and the activity being launched is already running in the
   2385      * current task, then instead of launching a new instance of that activity,
   2386      * all of the other activities on top of it will be closed and this Intent
   2387      * will be delivered to the (now on top) old activity as a new Intent.
   2388      *
   2389      * <p>For example, consider a task consisting of the activities: A, B, C, D.
   2390      * If D calls startActivity() with an Intent that resolves to the component
   2391      * of activity B, then C and D will be finished and B receive the given
   2392      * Intent, resulting in the stack now being: A, B.
   2393      *
   2394      * <p>The currently running instance of activity B in the above example will
   2395      * either receive the new intent you are starting here in its
   2396      * onNewIntent() method, or be itself finished and restarted with the
   2397      * new intent.  If it has declared its launch mode to be "multiple" (the
   2398      * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
   2399      * the same intent, then it will be finished and re-created; for all other
   2400      * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
   2401      * Intent will be delivered to the current instance's onNewIntent().
   2402      *
   2403      * <p>This launch mode can also be used to good effect in conjunction with
   2404      * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
   2405      * of a task, it will bring any currently running instance of that task
   2406      * to the foreground, and then clear it to its root state.  This is
   2407      * especially useful, for example, when launching an activity from the
   2408      * notification manager.
   2409      *
   2410      * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
   2411      * Activities and Tasks</a> for more details on tasks.
   2412      */
   2413     public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
   2414     /**
   2415      * If set and this intent is being used to launch a new activity from an
   2416      * existing one, then the reply target of the existing activity will be
   2417      * transfered to the new activity.  This way the new activity can call
   2418      * {@link android.app.Activity#setResult} and have that result sent back to
   2419      * the reply target of the original activity.
   2420      */
   2421     public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
   2422     /**
   2423      * If set and this intent is being used to launch a new activity from an
   2424      * existing one, the current activity will not be counted as the top
   2425      * activity for deciding whether the new intent should be delivered to
   2426      * the top instead of starting a new one.  The previous activity will
   2427      * be used as the top, with the assumption being that the current activity
   2428      * will finish itself immediately.
   2429      */
   2430     public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
   2431     /**
   2432      * If set, the new activity is not kept in the list of recently launched
   2433      * activities.
   2434      */
   2435     public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
   2436     /**
   2437      * This flag is not normally set by application code, but set for you by
   2438      * the system as described in the
   2439      * {@link android.R.styleable#AndroidManifestActivity_launchMode
   2440      * launchMode} documentation for the singleTask mode.
   2441      */
   2442     public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
   2443     /**
   2444      * If set, and this activity is either being started in a new task or
   2445      * bringing to the top an existing task, then it will be launched as
   2446      * the front door of the task.  This will result in the application of
   2447      * any affinities needed to have that task in the proper state (either
   2448      * moving activities to or from it), or simply resetting that task to
   2449      * its initial state if needed.
   2450      */
   2451     public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
   2452     /**
   2453      * This flag is not normally set by application code, but set for you by
   2454      * the system if this activity is being launched from history
   2455      * (longpress home key).
   2456      */
   2457     public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
   2458     /**
   2459      * If set, this marks a point in the task's activity stack that should
   2460      * be cleared when the task is reset.  That is, the next time the task
   2461      * is brought to the foreground with
   2462      * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
   2463      * the user re-launching it from home), this activity and all on top of
   2464      * it will be finished so that the user does not return to them, but
   2465      * instead returns to whatever activity preceeded it.
   2466      *
   2467      * <p>This is useful for cases where you have a logical break in your
   2468      * application.  For example, an e-mail application may have a command
   2469      * to view an attachment, which launches an image view activity to
   2470      * display it.  This activity should be part of the e-mail application's
   2471      * task, since it is a part of the task the user is involved in.  However,
   2472      * if the user leaves that task, and later selects the e-mail app from
   2473      * home, we may like them to return to the conversation they were
   2474      * viewing, not the picture attachment, since that is confusing.  By
   2475      * setting this flag when launching the image viewer, that viewer and
   2476      * any activities it starts will be removed the next time the user returns
   2477      * to mail.
   2478      */
   2479     public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
   2480     /**
   2481      * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
   2482      * callback from occurring on the current frontmost activity before it is
   2483      * paused as the newly-started activity is brought to the front.
   2484      *
   2485      * <p>Typically, an activity can rely on that callback to indicate that an
   2486      * explicit user action has caused their activity to be moved out of the
   2487      * foreground. The callback marks an appropriate point in the activity's
   2488      * lifecycle for it to dismiss any notifications that it intends to display
   2489      * "until the user has seen them," such as a blinking LED.
   2490      *
   2491      * <p>If an activity is ever started via any non-user-driven events such as
   2492      * phone-call receipt or an alarm handler, this flag should be passed to {@link
   2493      * Context#startActivity Context.startActivity}, ensuring that the pausing
   2494      * activity does not think the user has acknowledged its notification.
   2495      */
   2496     public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
   2497     /**
   2498      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   2499      * this flag will cause the launched activity to be brought to the front of its
   2500      * task's history stack if it is already running.
   2501      *
   2502      * <p>For example, consider a task consisting of four activities: A, B, C, D.
   2503      * If D calls startActivity() with an Intent that resolves to the component
   2504      * of activity B, then B will be brought to the front of the history stack,
   2505      * with this resulting order:  A, C, D, B.
   2506      *
   2507      * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
   2508      * specified.
   2509      */
   2510     public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
   2511     /**
   2512      * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
   2513      * this flag will prevent the system from applying an activity transition
   2514      * animation to go to the next activity state.  This doesn't mean an
   2515      * animation will never run -- if another activity change happens that doesn't
   2516      * specify this flag before the activity started here is displayed, then
   2517      * that transition will be used.  This this flag can be put to good use
   2518      * when you are going to do a series of activity operations but the
   2519      * animation seen by the user shouldn't be driven by the first activity
   2520      * change but rather a later one.
   2521      */
   2522     public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
   2523     /**
   2524      * If set, when sending a broadcast only registered receivers will be
   2525      * called -- no BroadcastReceiver components will be launched.
   2526      */
   2527     public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
   2528     /**
   2529      * If set, when sending a broadcast the new broadcast will replace
   2530      * any existing pending broadcast that matches it.  Matching is defined
   2531      * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning
   2532      * true for the intents of the two broadcasts.  When a match is found,
   2533      * the new broadcast (and receivers associated with it) will replace the
   2534      * existing one in the pending broadcast list, remaining at the same
   2535      * position in the list.
   2536      *
   2537      * <p>This flag is most typically used with sticky broadcasts, which
   2538      * only care about delivering the most recent values of the broadcast
   2539      * to their receivers.
   2540      */
   2541     public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
   2542     /**
   2543      * If set, when sending a broadcast <i>before boot has completed</i> only
   2544      * registered receivers will be called -- no BroadcastReceiver components
   2545      * will be launched.  Sticky intent state will be recorded properly even
   2546      * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
   2547      * is specified in the broadcast intent, this flag is unnecessary.
   2548      *
   2549      * <p>This flag is only for use by system sevices as a convenience to
   2550      * avoid having to implement a more complex mechanism around detection
   2551      * of boot completion.
   2552      *
   2553      * @hide
   2554      */
   2555     public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x10000000;
   2556     /**
   2557      * Set when this broadcast is for a boot upgrade, a special mode that
   2558      * allows the broadcast to be sent before the system is ready and launches
   2559      * the app process with no providers running in it.
   2560      * @hide
   2561      */
   2562     public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x08000000;
   2563 
   2564     /**
   2565      * @hide Flags that can't be changed with PendingIntent.
   2566      */
   2567     public static final int IMMUTABLE_FLAGS =
   2568             FLAG_GRANT_READ_URI_PERMISSION
   2569             | FLAG_GRANT_WRITE_URI_PERMISSION;
   2570 
   2571     // ---------------------------------------------------------------------
   2572     // ---------------------------------------------------------------------
   2573     // toUri() and parseUri() options.
   2574 
   2575     /**
   2576      * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
   2577      * always has the "intent:" scheme.  This syntax can be used when you want
   2578      * to later disambiguate between URIs that are intended to describe an
   2579      * Intent vs. all others that should be treated as raw URIs.  When used
   2580      * with {@link #parseUri}, any other scheme will result in a generic
   2581      * VIEW action for that raw URI.
   2582      */
   2583     public static final int URI_INTENT_SCHEME = 1<<0;
   2584 
   2585     // ---------------------------------------------------------------------
   2586 
   2587     private String mAction;
   2588     private Uri mData;
   2589     private String mType;
   2590     private String mPackage;
   2591     private ComponentName mComponent;
   2592     private int mFlags;
   2593     private HashSet<String> mCategories;
   2594     private Bundle mExtras;
   2595     private Rect mSourceBounds;
   2596 
   2597     // ---------------------------------------------------------------------
   2598 
   2599     /**
   2600      * Create an empty intent.
   2601      */
   2602     public Intent() {
   2603     }
   2604 
   2605     /**
   2606      * Copy constructor.
   2607      */
   2608     public Intent(Intent o) {
   2609         this.mAction = o.mAction;
   2610         this.mData = o.mData;
   2611         this.mType = o.mType;
   2612         this.mPackage = o.mPackage;
   2613         this.mComponent = o.mComponent;
   2614         this.mFlags = o.mFlags;
   2615         if (o.mCategories != null) {
   2616             this.mCategories = new HashSet<String>(o.mCategories);
   2617         }
   2618         if (o.mExtras != null) {
   2619             this.mExtras = new Bundle(o.mExtras);
   2620         }
   2621         if (o.mSourceBounds != null) {
   2622             this.mSourceBounds = new Rect(o.mSourceBounds);
   2623         }
   2624     }
   2625 
   2626     @Override
   2627     public Object clone() {
   2628         return new Intent(this);
   2629     }
   2630 
   2631     private Intent(Intent o, boolean all) {
   2632         this.mAction = o.mAction;
   2633         this.mData = o.mData;
   2634         this.mType = o.mType;
   2635         this.mPackage = o.mPackage;
   2636         this.mComponent = o.mComponent;
   2637         if (o.mCategories != null) {
   2638             this.mCategories = new HashSet<String>(o.mCategories);
   2639         }
   2640     }
   2641 
   2642     /**
   2643      * Make a clone of only the parts of the Intent that are relevant for
   2644      * filter matching: the action, data, type, component, and categories.
   2645      */
   2646     public Intent cloneFilter() {
   2647         return new Intent(this, false);
   2648     }
   2649 
   2650     /**
   2651      * Create an intent with a given action.  All other fields (data, type,
   2652      * class) are null.  Note that the action <em>must</em> be in a
   2653      * namespace because Intents are used globally in the system -- for
   2654      * example the system VIEW action is android.intent.action.VIEW; an
   2655      * application's custom action would be something like
   2656      * com.google.app.myapp.CUSTOM_ACTION.
   2657      *
   2658      * @param action The Intent action, such as ACTION_VIEW.
   2659      */
   2660     public Intent(String action) {
   2661         mAction = action;
   2662     }
   2663 
   2664     /**
   2665      * Create an intent with a given action and for a given data url.  Note
   2666      * that the action <em>must</em> be in a namespace because Intents are
   2667      * used globally in the system -- for example the system VIEW action is
   2668      * android.intent.action.VIEW; an application's custom action would be
   2669      * something like com.google.app.myapp.CUSTOM_ACTION.
   2670      *
   2671      * <p><em>Note: scheme and host name matching in the Android framework is
   2672      * case-sensitive, unlike the formal RFC.  As a result,
   2673      * you should always ensure that you write your Uri with these elements
   2674      * using lower case letters, and normalize any Uris you receive from
   2675      * outside of Android to ensure the scheme and host is lower case.</em></p>
   2676      *
   2677      * @param action The Intent action, such as ACTION_VIEW.
   2678      * @param uri The Intent data URI.
   2679      */
   2680     public Intent(String action, Uri uri) {
   2681         mAction = action;
   2682         mData = uri;
   2683     }
   2684 
   2685     /**
   2686      * Create an intent for a specific component.  All other fields (action, data,
   2687      * type, class) are null, though they can be modified later with explicit
   2688      * calls.  This provides a convenient way to create an intent that is
   2689      * intended to execute a hard-coded class name, rather than relying on the
   2690      * system to find an appropriate class for you; see {@link #setComponent}
   2691      * for more information on the repercussions of this.
   2692      *
   2693      * @param packageContext A Context of the application package implementing
   2694      * this class.
   2695      * @param cls The component class that is to be used for the intent.
   2696      *
   2697      * @see #setClass
   2698      * @see #setComponent
   2699      * @see #Intent(String, android.net.Uri , Context, Class)
   2700      */
   2701     public Intent(Context packageContext, Class<?> cls) {
   2702         mComponent = new ComponentName(packageContext, cls);
   2703     }
   2704 
   2705     /**
   2706      * Create an intent for a specific component with a specified action and data.
   2707      * This is equivalent using {@link #Intent(String, android.net.Uri)} to
   2708      * construct the Intent and then calling {@link #setClass} to set its
   2709      * class.
   2710      *
   2711      * <p><em>Note: scheme and host name matching in the Android framework is
   2712      * case-sensitive, unlike the formal RFC.  As a result,
   2713      * you should always ensure that you write your Uri with these elements
   2714      * using lower case letters, and normalize any Uris you receive from
   2715      * outside of Android to ensure the scheme and host is lower case.</em></p>
   2716      *
   2717      * @param action The Intent action, such as ACTION_VIEW.
   2718      * @param uri The Intent data URI.
   2719      * @param packageContext A Context of the application package implementing
   2720      * this class.
   2721      * @param cls The component class that is to be used for the intent.
   2722      *
   2723      * @see #Intent(String, android.net.Uri)
   2724      * @see #Intent(Context, Class)
   2725      * @see #setClass
   2726      * @see #setComponent
   2727      */
   2728     public Intent(String action, Uri uri,
   2729             Context packageContext, Class<?> cls) {
   2730         mAction = action;
   2731         mData = uri;
   2732         mComponent = new ComponentName(packageContext, cls);
   2733     }
   2734 
   2735     /**
   2736      * Call {@link #parseUri} with 0 flags.
   2737      * @deprecated Use {@link #parseUri} instead.
   2738      */
   2739     @Deprecated
   2740     public static Intent getIntent(String uri) throws URISyntaxException {
   2741         return parseUri(uri, 0);
   2742     }
   2743 
   2744     /**
   2745      * Create an intent from a URI.  This URI may encode the action,
   2746      * category, and other intent fields, if it was returned by
   2747      * {@link #toUri}.  If the Intent was not generate by toUri(), its data
   2748      * will be the entire URI and its action will be ACTION_VIEW.
   2749      *
   2750      * <p>The URI given here must not be relative -- that is, it must include
   2751      * the scheme and full path.
   2752      *
   2753      * @param uri The URI to turn into an Intent.
   2754      * @param flags Additional processing flags.  Either 0 or
   2755      * {@link #URI_INTENT_SCHEME}.
   2756      *
   2757      * @return Intent The newly created Intent object.
   2758      *
   2759      * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
   2760      * it bad (as parsed by the Uri class) or the Intent data within the
   2761      * URI is invalid.
   2762      *
   2763      * @see #toUri
   2764      */
   2765     public static Intent parseUri(String uri, int flags) throws URISyntaxException {
   2766         int i = 0;
   2767         try {
   2768             // Validate intent scheme for if requested.
   2769             if ((flags&URI_INTENT_SCHEME) != 0) {
   2770                 if (!uri.startsWith("intent:")) {
   2771                     Intent intent = new Intent(ACTION_VIEW);
   2772                     try {
   2773                         intent.setData(Uri.parse(uri));
   2774                     } catch (IllegalArgumentException e) {
   2775                         throw new URISyntaxException(uri, e.getMessage());
   2776                     }
   2777                     return intent;
   2778                 }
   2779             }
   2780 
   2781             // simple case
   2782             i = uri.lastIndexOf("#");
   2783             if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
   2784 
   2785             // old format Intent URI
   2786             if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
   2787 
   2788             // new format
   2789             Intent intent = new Intent(ACTION_VIEW);
   2790 
   2791             // fetch data part, if present
   2792             String data = i >= 0 ? uri.substring(0, i) : null;
   2793             String scheme = null;
   2794             i += "#Intent;".length();
   2795 
   2796             // loop over contents of Intent, all name=value;
   2797             while (!uri.startsWith("end", i)) {
   2798                 int eq = uri.indexOf('=', i);
   2799                 int semi = uri.indexOf(';', eq);
   2800                 String value = Uri.decode(uri.substring(eq + 1, semi));
   2801 
   2802                 // action
   2803                 if (uri.startsWith("action=", i)) {
   2804                     intent.mAction = value;
   2805                 }
   2806 
   2807                 // categories
   2808                 else if (uri.startsWith("category=", i)) {
   2809                     intent.addCategory(value);
   2810                 }
   2811 
   2812                 // type
   2813                 else if (uri.startsWith("type=", i)) {
   2814                     intent.mType = value;
   2815                 }
   2816 
   2817                 // launch flags
   2818                 else if (uri.startsWith("launchFlags=", i)) {
   2819                     intent.mFlags = Integer.decode(value).intValue();
   2820                 }
   2821 
   2822                 // package
   2823                 else if (uri.startsWith("package=", i)) {
   2824                     intent.mPackage = value;
   2825                 }
   2826 
   2827                 // component
   2828                 else if (uri.startsWith("component=", i)) {
   2829                     intent.mComponent = ComponentName.unflattenFromString(value);
   2830                 }
   2831 
   2832                 // scheme
   2833                 else if (uri.startsWith("scheme=", i)) {
   2834                     scheme = value;
   2835                 }
   2836 
   2837                 // source bounds
   2838                 else if (uri.startsWith("sourceBounds=", i)) {
   2839                     intent.mSourceBounds = Rect.unflattenFromString(value);
   2840                 }
   2841 
   2842                 // extra
   2843                 else {
   2844                     String key = Uri.decode(uri.substring(i + 2, eq));
   2845                     // create Bundle if it doesn't already exist
   2846                     if (intent.mExtras == null) intent.mExtras = new Bundle();
   2847                     Bundle b = intent.mExtras;
   2848                     // add EXTRA
   2849                     if      (uri.startsWith("S.", i)) b.putString(key, value);
   2850                     else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
   2851                     else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
   2852                     else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
   2853                     else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
   2854                     else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
   2855                     else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
   2856                     else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
   2857                     else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
   2858                     else throw new URISyntaxException(uri, "unknown EXTRA type", i);
   2859                 }
   2860 
   2861                 // move to the next item
   2862                 i = semi + 1;
   2863             }
   2864 
   2865             if (data != null) {
   2866                 if (data.startsWith("intent:")) {
   2867                     data = data.substring(7);
   2868                     if (scheme != null) {
   2869                         data = scheme + ':' + data;
   2870                     }
   2871                 }
   2872 
   2873                 if (data.length() > 0) {
   2874                     try {
   2875                         intent.mData = Uri.parse(data);
   2876                     } catch (IllegalArgumentException e) {
   2877                         throw new URISyntaxException(uri, e.getMessage());
   2878                     }
   2879                 }
   2880             }
   2881 
   2882             return intent;
   2883 
   2884         } catch (IndexOutOfBoundsException e) {
   2885             throw new URISyntaxException(uri, "illegal Intent URI format", i);
   2886         }
   2887     }
   2888 
   2889     public static Intent getIntentOld(String uri) throws URISyntaxException {
   2890         Intent intent;
   2891 
   2892         int i = uri.lastIndexOf('#');
   2893         if (i >= 0) {
   2894             String action = null;
   2895             final int intentFragmentStart = i;
   2896             boolean isIntentFragment = false;
   2897 
   2898             i++;
   2899 
   2900             if (uri.regionMatches(i, "action(", 0, 7)) {
   2901                 isIntentFragment = true;
   2902                 i += 7;
   2903                 int j = uri.indexOf(')', i);
   2904                 action = uri.substring(i, j);
   2905                 i = j + 1;
   2906             }
   2907 
   2908             intent = new Intent(action);
   2909 
   2910             if (uri.regionMatches(i, "categories(", 0, 11)) {
   2911                 isIntentFragment = true;
   2912                 i += 11;
   2913                 int j = uri.indexOf(')', i);
   2914                 while (i < j) {
   2915                     int sep = uri.indexOf('!', i);
   2916                     if (sep < 0) sep = j;
   2917                     if (i < sep) {
   2918                         intent.addCategory(uri.substring(i, sep));
   2919                     }
   2920                     i = sep + 1;
   2921                 }
   2922                 i = j + 1;
   2923             }
   2924 
   2925             if (uri.regionMatches(i, "type(", 0, 5)) {
   2926                 isIntentFragment = true;
   2927                 i += 5;
   2928                 int j = uri.indexOf(')', i);
   2929                 intent.mType = uri.substring(i, j);
   2930                 i = j + 1;
   2931             }
   2932 
   2933             if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
   2934                 isIntentFragment = true;
   2935                 i += 12;
   2936                 int j = uri.indexOf(')', i);
   2937                 intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
   2938                 i = j + 1;
   2939             }
   2940 
   2941             if (uri.regionMatches(i, "component(", 0, 10)) {
   2942                 isIntentFragment = true;
   2943                 i += 10;
   2944                 int j = uri.indexOf(')', i);
   2945                 int sep = uri.indexOf('!', i);
   2946                 if (sep >= 0 && sep < j) {
   2947                     String pkg = uri.substring(i, sep);
   2948                     String cls = uri.substring(sep + 1, j);
   2949                     intent.mComponent = new ComponentName(pkg, cls);
   2950                 }
   2951                 i = j + 1;
   2952             }
   2953 
   2954             if (uri.regionMatches(i, "extras(", 0, 7)) {
   2955                 isIntentFragment = true;
   2956                 i += 7;
   2957 
   2958                 final int closeParen = uri.indexOf(')', i);
   2959                 if (closeParen == -1) throw new URISyntaxException(uri,
   2960                         "EXTRA missing trailing ')'", i);
   2961 
   2962                 while (i < closeParen) {
   2963                     // fetch the key value
   2964                     int j = uri.indexOf('=', i);
   2965                     if (j <= i + 1 || i >= closeParen) {
   2966                         throw new URISyntaxException(uri, "EXTRA missing '='", i);
   2967                     }
   2968                     char type = uri.charAt(i);
   2969                     i++;
   2970                     String key = uri.substring(i, j);
   2971                     i = j + 1;
   2972 
   2973                     // get type-value
   2974                     j = uri.indexOf('!', i);
   2975                     if (j == -1 || j >= closeParen) j = closeParen;
   2976                     if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
   2977                     String value = uri.substring(i, j);
   2978                     i = j;
   2979 
   2980                     // create Bundle if it doesn't already exist
   2981                     if (intent.mExtras == null) intent.mExtras = new Bundle();
   2982 
   2983                     // add item to bundle
   2984                     try {
   2985                         switch (type) {
   2986                             case 'S':
   2987                                 intent.mExtras.putString(key, Uri.decode(value));
   2988                                 break;
   2989                             case 'B':
   2990                                 intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
   2991                                 break;
   2992                             case 'b':
   2993                                 intent.mExtras.putByte(key, Byte.parseByte(value));
   2994                                 break;
   2995                             case 'c':
   2996                                 intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
   2997                                 break;
   2998                             case 'd':
   2999                                 intent.mExtras.putDouble(key, Double.parseDouble(value));
   3000                                 break;
   3001                             case 'f':
   3002                                 intent.mExtras.putFloat(key, Float.parseFloat(value));
   3003                                 break;
   3004                             case 'i':
   3005                                 intent.mExtras.putInt(key, Integer.parseInt(value));
   3006                                 break;
   3007                             case 'l':
   3008                                 intent.mExtras.putLong(key, Long.parseLong(value));
   3009                                 break;
   3010                             case 's':
   3011                                 intent.mExtras.putShort(key, Short.parseShort(value));
   3012                                 break;
   3013                             default:
   3014                                 throw new URISyntaxException(uri, "EXTRA has unknown type", i);
   3015                         }
   3016                     } catch (NumberFormatException e) {
   3017                         throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
   3018                     }
   3019 
   3020                     char ch = uri.charAt(i);
   3021                     if (ch == ')') break;
   3022                     if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
   3023                     i++;
   3024                 }
   3025             }
   3026 
   3027             if (isIntentFragment) {
   3028                 intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
   3029             } else {
   3030                 intent.mData = Uri.parse(uri);
   3031             }
   3032 
   3033             if (intent.mAction == null) {
   3034                 // By default, if no action is specified, then use VIEW.
   3035                 intent.mAction = ACTION_VIEW;
   3036             }
   3037 
   3038         } else {
   3039             intent = new Intent(ACTION_VIEW, Uri.parse(uri));
   3040         }
   3041 
   3042         return intent;
   3043     }
   3044 
   3045     /**
   3046      * Retrieve the general action to be performed, such as
   3047      * {@link #ACTION_VIEW}.  The action describes the general way the rest of
   3048      * the information in the intent should be interpreted -- most importantly,
   3049      * what to do with the data returned by {@link #getData}.
   3050      *
   3051      * @return The action of this intent or null if none is specified.
   3052      *
   3053      * @see #setAction
   3054      */
   3055     public String getAction() {
   3056         return mAction;
   3057     }
   3058 
   3059     /**
   3060      * Retrieve data this intent is operating on.  This URI specifies the name
   3061      * of the data; often it uses the content: scheme, specifying data in a
   3062      * content provider.  Other schemes may be handled by specific activities,
   3063      * such as http: by the web browser.
   3064      *
   3065      * @return The URI of the data this intent is targeting or null.
   3066      *
   3067      * @see #getScheme
   3068      * @see #setData
   3069      */
   3070     public Uri getData() {
   3071         return mData;
   3072     }
   3073 
   3074     /**
   3075      * The same as {@link #getData()}, but returns the URI as an encoded
   3076      * String.
   3077      */
   3078     public String getDataString() {
   3079         return mData != null ? mData.toString() : null;
   3080     }
   3081 
   3082     /**
   3083      * Return the scheme portion of the intent's data.  If the data is null or
   3084      * does not include a scheme, null is returned.  Otherwise, the scheme
   3085      * prefix without the final ':' is returned, i.e. "http".
   3086      *
   3087      * <p>This is the same as calling getData().getScheme() (and checking for
   3088      * null data).
   3089      *
   3090      * @return The scheme of this intent.
   3091      *
   3092      * @see #getData
   3093      */
   3094     public String getScheme() {
   3095         return mData != null ? mData.getScheme() : null;
   3096     }
   3097 
   3098     /**
   3099      * Retrieve any explicit MIME type included in the intent.  This is usually
   3100      * null, as the type is determined by the intent data.
   3101      *
   3102      * @return If a type was manually set, it is returned; else null is
   3103      *         returned.
   3104      *
   3105      * @see #resolveType(ContentResolver)
   3106      * @see #setType
   3107      */
   3108     public String getType() {
   3109         return mType;
   3110     }
   3111 
   3112     /**
   3113      * Return the MIME data type of this intent.  If the type field is
   3114      * explicitly set, that is simply returned.  Otherwise, if the data is set,
   3115      * the type of that data is returned.  If neither fields are set, a null is
   3116      * returned.
   3117      *
   3118      * @return The MIME type of this intent.
   3119      *
   3120      * @see #getType
   3121      * @see #resolveType(ContentResolver)
   3122      */
   3123     public String resolveType(Context context) {
   3124         return resolveType(context.getContentResolver());
   3125     }
   3126 
   3127     /**
   3128      * Return the MIME data type of this intent.  If the type field is
   3129      * explicitly set, that is simply returned.  Otherwise, if the data is set,
   3130      * the type of that data is returned.  If neither fields are set, a null is
   3131      * returned.
   3132      *
   3133      * @param resolver A ContentResolver that can be used to determine the MIME
   3134      *                 type of the intent's data.
   3135      *
   3136      * @return The MIME type of this intent.
   3137      *
   3138      * @see #getType
   3139      * @see #resolveType(Context)
   3140      */
   3141     public String resolveType(ContentResolver resolver) {
   3142         if (mType != null) {
   3143             return mType;
   3144         }
   3145         if (mData != null) {
   3146             if ("content".equals(mData.getScheme())) {
   3147                 return resolver.getType(mData);
   3148             }
   3149         }
   3150         return null;
   3151     }
   3152 
   3153     /**
   3154      * Return the MIME data type of this intent, only if it will be needed for
   3155      * intent resolution.  This is not generally useful for application code;
   3156      * it is used by the frameworks for communicating with back-end system
   3157      * services.
   3158      *
   3159      * @param resolver A ContentResolver that can be used to determine the MIME
   3160      *                 type of the intent's data.
   3161      *
   3162      * @return The MIME type of this intent, or null if it is unknown or not
   3163      *         needed.
   3164      */
   3165     public String resolveTypeIfNeeded(ContentResolver resolver) {
   3166         if (mComponent != null) {
   3167             return mType;
   3168         }
   3169         return resolveType(resolver);
   3170     }
   3171 
   3172     /**
   3173      * Check if an category exists in the intent.
   3174      *
   3175      * @param category The category to check.
   3176      *
   3177      * @return boolean True if the intent contains the category, else false.
   3178      *
   3179      * @see #getCategories
   3180      * @see #addCategory
   3181      */
   3182     public boolean hasCategory(String category) {
   3183         return mCategories != null && mCategories.contains(category);
   3184     }
   3185 
   3186     /**
   3187      * Return the set of all categories in the intent.  If there are no categories,
   3188      * returns NULL.
   3189      *
   3190      * @return Set The set of categories you can examine.  Do not modify!
   3191      *
   3192      * @see #hasCategory
   3193      * @see #addCategory
   3194      */
   3195     public Set<String> getCategories() {
   3196         return mCategories;
   3197     }
   3198 
   3199     /**
   3200      * Sets the ClassLoader that will be used when unmarshalling
   3201      * any Parcelable values from the extras of this Intent.
   3202      *
   3203      * @param loader a ClassLoader, or null to use the default loader
   3204      * at the time of unmarshalling.
   3205      */
   3206     public void setExtrasClassLoader(ClassLoader loader) {
   3207         if (mExtras != null) {
   3208             mExtras.setClassLoader(loader);
   3209         }
   3210     }
   3211 
   3212     /**
   3213      * Returns true if an extra value is associated with the given name.
   3214      * @param name the extra's name
   3215      * @return true if the given extra is present.
   3216      */
   3217     public boolean hasExtra(String name) {
   3218         return mExtras != null && mExtras.containsKey(name);
   3219     }
   3220 
   3221     /**
   3222      * Returns true if the Intent's extras contain a parcelled file descriptor.
   3223      * @return true if the Intent contains a parcelled file descriptor.
   3224      */
   3225     public boolean hasFileDescriptors() {
   3226         return mExtras != null && mExtras.hasFileDescriptors();
   3227     }
   3228 
   3229     /**
   3230      * Retrieve extended data from the intent.
   3231      *
   3232      * @param name The name of the desired item.
   3233      *
   3234      * @return the value of an item that previously added with putExtra()
   3235      * or null if none was found.
   3236      *
   3237      * @deprecated
   3238      * @hide
   3239      */
   3240     @Deprecated
   3241     public Object getExtra(String name) {
   3242         return getExtra(name, null);
   3243     }
   3244 
   3245     /**
   3246      * Retrieve extended data from the intent.
   3247      *
   3248      * @param name The name of the desired item.
   3249      * @param defaultValue the value to be returned if no value of the desired
   3250      * type is stored with the given name.
   3251      *
   3252      * @return the value of an item that previously added with putExtra()
   3253      * or the default value if none was found.
   3254      *
   3255      * @see #putExtra(String, boolean)
   3256      */
   3257     public boolean getBooleanExtra(String name, boolean defaultValue) {
   3258         return mExtras == null ? defaultValue :
   3259             mExtras.getBoolean(name, defaultValue);
   3260     }
   3261 
   3262     /**
   3263      * Retrieve extended data from the intent.
   3264      *
   3265      * @param name The name of the desired item.
   3266      * @param defaultValue the value to be returned if no value of the desired
   3267      * type is stored with the given name.
   3268      *
   3269      * @return the value of an item that previously added with putExtra()
   3270      * or the default value if none was found.
   3271      *
   3272      * @see #putExtra(String, byte)
   3273      */
   3274     public byte getByteExtra(String name, byte defaultValue) {
   3275         return mExtras == null ? defaultValue :
   3276             mExtras.getByte(name, defaultValue);
   3277     }
   3278 
   3279     /**
   3280      * Retrieve extended data from the intent.
   3281      *
   3282      * @param name The name of the desired item.
   3283      * @param defaultValue the value to be returned if no value of the desired
   3284      * type is stored with the given name.
   3285      *
   3286      * @return the value of an item that previously added with putExtra()
   3287      * or the default value if none was found.
   3288      *
   3289      * @see #putExtra(String, short)
   3290      */
   3291     public short getShortExtra(String name, short defaultValue) {
   3292         return mExtras == null ? defaultValue :
   3293             mExtras.getShort(name, defaultValue);
   3294     }
   3295 
   3296     /**
   3297      * Retrieve extended data from the intent.
   3298      *
   3299      * @param name The name of the desired item.
   3300      * @param defaultValue the value to be returned if no value of the desired
   3301      * type is stored with the given name.
   3302      *
   3303      * @return the value of an item that previously added with putExtra()
   3304      * or the default value if none was found.
   3305      *
   3306      * @see #putExtra(String, char)
   3307      */
   3308     public char getCharExtra(String name, char defaultValue) {
   3309         return mExtras == null ? defaultValue :
   3310             mExtras.getChar(name, defaultValue);
   3311     }
   3312 
   3313     /**
   3314      * Retrieve extended data from the intent.
   3315      *
   3316      * @param name The name of the desired item.
   3317      * @param defaultValue the value to be returned if no value of the desired
   3318      * type is stored with the given name.
   3319      *
   3320      * @return the value of an item that previously added with putExtra()
   3321      * or the default value if none was found.
   3322      *
   3323      * @see #putExtra(String, int)
   3324      */
   3325     public int getIntExtra(String name, int defaultValue) {
   3326         return mExtras == null ? defaultValue :
   3327             mExtras.getInt(name, defaultValue);
   3328     }
   3329 
   3330     /**
   3331      * Retrieve extended data from the intent.
   3332      *
   3333      * @param name The name of the desired item.
   3334      * @param defaultValue the value to be returned if no value of the desired
   3335      * type is stored with the given name.
   3336      *
   3337      * @return the value of an item that previously added with putExtra()
   3338      * or the default value if none was found.
   3339      *
   3340      * @see #putExtra(String, long)
   3341      */
   3342     public long getLongExtra(String name, long defaultValue) {
   3343         return mExtras == null ? defaultValue :
   3344             mExtras.getLong(name, defaultValue);
   3345     }
   3346 
   3347     /**
   3348      * Retrieve extended data from the intent.
   3349      *
   3350      * @param name The name of the desired item.
   3351      * @param defaultValue the value to be returned if no value of the desired
   3352      * type is stored with the given name.
   3353      *
   3354      * @return the value of an item that previously added with putExtra(),
   3355      * or the default value if no such item is present
   3356      *
   3357      * @see #putExtra(String, float)
   3358      */
   3359     public float getFloatExtra(String name, float defaultValue) {
   3360         return mExtras == null ? defaultValue :
   3361             mExtras.getFloat(name, defaultValue);
   3362     }
   3363 
   3364     /**
   3365      * Retrieve extended data from the intent.
   3366      *
   3367      * @param name The name of the desired item.
   3368      * @param defaultValue the value to be returned if no value of the desired
   3369      * type is stored with the given name.
   3370      *
   3371      * @return the value of an item that previously added with putExtra()
   3372      * or the default value if none was found.
   3373      *
   3374      * @see #putExtra(String, double)
   3375      */
   3376     public double getDoubleExtra(String name, double defaultValue) {
   3377         return mExtras == null ? defaultValue :
   3378             mExtras.getDouble(name, defaultValue);
   3379     }
   3380 
   3381     /**
   3382      * Retrieve extended data from the intent.
   3383      *
   3384      * @param name The name of the desired item.
   3385      *
   3386      * @return the value of an item that previously added with putExtra()
   3387      * or null if no String value was found.
   3388      *
   3389      * @see #putExtra(String, String)
   3390      */
   3391     public String getStringExtra(String name) {
   3392         return mExtras == null ? null : mExtras.getString(name);
   3393     }
   3394 
   3395     /**
   3396      * Retrieve extended data from the intent.
   3397      *
   3398      * @param name The name of the desired item.
   3399      *
   3400      * @return the value of an item that previously added with putExtra()
   3401      * or null if no CharSequence value was found.
   3402      *
   3403      * @see #putExtra(String, CharSequence)
   3404      */
   3405     public CharSequence getCharSequenceExtra(String name) {
   3406         return mExtras == null ? null : mExtras.getCharSequence(name);
   3407     }
   3408 
   3409     /**
   3410      * Retrieve extended data from the intent.
   3411      *
   3412      * @param name The name of the desired item.
   3413      *
   3414      * @return the value of an item that previously added with putExtra()
   3415      * or null if no Parcelable value was found.
   3416      *
   3417      * @see #putExtra(String, Parcelable)
   3418      */
   3419     public <T extends Parcelable> T getParcelableExtra(String name) {
   3420         return mExtras == null ? null : mExtras.<T>getParcelable(name);
   3421     }
   3422 
   3423     /**
   3424      * Retrieve extended data from the intent.
   3425      *
   3426      * @param name The name of the desired item.
   3427      *
   3428      * @return the value of an item that previously added with putExtra()
   3429      * or null if no Parcelable[] value was found.
   3430      *
   3431      * @see #putExtra(String, Parcelable[])
   3432      */
   3433     public Parcelable[] getParcelableArrayExtra(String name) {
   3434         return mExtras == null ? null : mExtras.getParcelableArray(name);
   3435     }
   3436 
   3437     /**
   3438      * Retrieve extended data from the intent.
   3439      *
   3440      * @param name The name of the desired item.
   3441      *
   3442      * @return the value of an item that previously added with putExtra()
   3443      * or null if no ArrayList<Parcelable> value was found.
   3444      *
   3445      * @see #putParcelableArrayListExtra(String, ArrayList)
   3446      */
   3447     public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
   3448         return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
   3449     }
   3450 
   3451     /**
   3452      * Retrieve extended data from the intent.
   3453      *
   3454      * @param name The name of the desired item.
   3455      *
   3456      * @return the value of an item that previously added with putExtra()
   3457      * or null if no Serializable value was found.
   3458      *
   3459      * @see #putExtra(String, Serializable)
   3460      */
   3461     public Serializable getSerializableExtra(String name) {
   3462         return mExtras == null ? null : mExtras.getSerializable(name);
   3463     }
   3464 
   3465     /**
   3466      * Retrieve extended data from the intent.
   3467      *
   3468      * @param name The name of the desired item.
   3469      *
   3470      * @return the value of an item that previously added with putExtra()
   3471      * or null if no ArrayList<Integer> value was found.
   3472      *
   3473      * @see #putIntegerArrayListExtra(String, ArrayList)
   3474      */
   3475     public ArrayList<Integer> getIntegerArrayListExtra(String name) {
   3476         return mExtras == null ? null : mExtras.getIntegerArrayList(name);
   3477     }
   3478 
   3479     /**
   3480      * Retrieve extended data from the intent.
   3481      *
   3482      * @param name The name of the desired item.
   3483      *
   3484      * @return the value of an item that previously added with putExtra()
   3485      * or null if no ArrayList<String> value was found.
   3486      *
   3487      * @see #putStringArrayListExtra(String, ArrayList)
   3488      */
   3489     public ArrayList<String> getStringArrayListExtra(String name) {
   3490         return mExtras == null ? null : mExtras.getStringArrayList(name);
   3491     }
   3492 
   3493     /**
   3494      * Retrieve extended data from the intent.
   3495      *
   3496      * @param name The name of the desired item.
   3497      *
   3498      * @return the value of an item that previously added with putExtra()
   3499      * or null if no ArrayList<CharSequence> value was found.
   3500      *
   3501      * @see #putCharSequenceArrayListExtra(String, ArrayList)
   3502      */
   3503     public ArrayList<CharSequence> getCharSequenceArrayListExtra(String name) {
   3504         return mExtras == null ? null : mExtras.getCharSequenceArrayList(name);
   3505     }
   3506 
   3507     /**
   3508      * Retrieve extended data from the intent.
   3509      *
   3510      * @param name The name of the desired item.
   3511      *
   3512      * @return the value of an item that previously added with putExtra()
   3513      * or null if no boolean array value was found.
   3514      *
   3515      * @see #putExtra(String, boolean[])
   3516      */
   3517     public boolean[] getBooleanArrayExtra(String name) {
   3518         return mExtras == null ? null : mExtras.getBooleanArray(name);
   3519     }
   3520 
   3521     /**
   3522      * Retrieve extended data from the intent.
   3523      *
   3524      * @param name The name of the desired item.
   3525      *
   3526      * @return the value of an item that previously added with putExtra()
   3527      * or null if no byte array value was found.
   3528      *
   3529      * @see #putExtra(String, byte[])
   3530      */
   3531     public byte[] getByteArrayExtra(String name) {
   3532         return mExtras == null ? null : mExtras.getByteArray(name);
   3533     }
   3534 
   3535     /**
   3536      * Retrieve extended data from the intent.
   3537      *
   3538      * @param name The name of the desired item.
   3539      *
   3540      * @return the value of an item that previously added with putExtra()
   3541      * or null if no short array value was found.
   3542      *
   3543      * @see #putExtra(String, short[])
   3544      */
   3545     public short[] getShortArrayExtra(String name) {
   3546         return mExtras == null ? null : mExtras.getShortArray(name);
   3547     }
   3548 
   3549     /**
   3550      * Retrieve extended data from the intent.
   3551      *
   3552      * @param name The name of the desired item.
   3553      *
   3554      * @return the value of an item that previously added with putExtra()
   3555      * or null if no char array value was found.
   3556      *
   3557      * @see #putExtra(String, char[])
   3558      */
   3559     public char[] getCharArrayExtra(String name) {
   3560         return mExtras == null ? null : mExtras.getCharArray(name);
   3561     }
   3562 
   3563     /**
   3564      * Retrieve extended data from the intent.
   3565      *
   3566      * @param name The name of the desired item.
   3567      *
   3568      * @return the value of an item that previously added with putExtra()
   3569      * or null if no int array value was found.
   3570      *
   3571      * @see #putExtra(String, int[])
   3572      */
   3573     public int[] getIntArrayExtra(String name) {
   3574         return mExtras == null ? null : mExtras.getIntArray(name);
   3575     }
   3576 
   3577     /**
   3578      * Retrieve extended data from the intent.
   3579      *
   3580      * @param name The name of the desired item.
   3581      *
   3582      * @return the value of an item that previously added with putExtra()
   3583      * or null if no long array value was found.
   3584      *
   3585      * @see #putExtra(String, long[])
   3586      */
   3587     public long[] getLongArrayExtra(String name) {
   3588         return mExtras == null ? null : mExtras.getLongArray(name);
   3589     }
   3590 
   3591     /**
   3592      * Retrieve extended data from the intent.
   3593      *
   3594      * @param name The name of the desired item.
   3595      *
   3596      * @return the value of an item that previously added with putExtra()
   3597      * or null if no float array value was found.
   3598      *
   3599      * @see #putExtra(String, float[])
   3600      */
   3601     public float[] getFloatArrayExtra(String name) {
   3602         return mExtras == null ? null : mExtras.getFloatArray(name);
   3603     }
   3604 
   3605     /**
   3606      * Retrieve extended data from the intent.
   3607      *
   3608      * @param name The name of the desired item.
   3609      *
   3610      * @return the value of an item that previously added with putExtra()
   3611      * or null if no double array value was found.
   3612      *
   3613      * @see #putExtra(String, double[])
   3614      */
   3615     public double[] getDoubleArrayExtra(String name) {
   3616         return mExtras == null ? null : mExtras.getDoubleArray(name);
   3617     }
   3618 
   3619     /**
   3620      * Retrieve extended data from the intent.
   3621      *
   3622      * @param name The name of the desired item.
   3623      *
   3624      * @return the value of an item that previously added with putExtra()
   3625      * or null if no String array value was found.
   3626      *
   3627      * @see #putExtra(String, String[])
   3628      */
   3629     public String[] getStringArrayExtra(String name) {
   3630         return mExtras == null ? null : mExtras.getStringArray(name);
   3631     }
   3632 
   3633     /**
   3634      * Retrieve extended data from the intent.
   3635      *
   3636      * @param name The name of the desired item.
   3637      *
   3638      * @return the value of an item that previously added with putExtra()
   3639      * or null if no CharSequence array value was found.
   3640      *
   3641      * @see #putExtra(String, CharSequence[])
   3642      */
   3643     public CharSequence[] getCharSequenceArrayExtra(String name) {
   3644         return mExtras == null ? null : mExtras.getCharSequenceArray(name);
   3645     }
   3646 
   3647     /**
   3648      * Retrieve extended data from the intent.
   3649      *
   3650      * @param name The name of the desired item.
   3651      *
   3652      * @return the value of an item that previously added with putExtra()
   3653      * or null if no Bundle value was found.
   3654      *
   3655      * @see #putExtra(String, Bundle)
   3656      */
   3657     public Bundle getBundleExtra(String name) {
   3658         return mExtras == null ? null : mExtras.getBundle(name);
   3659     }
   3660 
   3661     /**
   3662      * Retrieve extended data from the intent.
   3663      *
   3664      * @param name The name of the desired item.
   3665      *
   3666      * @return the value of an item that previously added with putExtra()
   3667      * or null if no IBinder value was found.
   3668      *
   3669      * @see #putExtra(String, IBinder)
   3670      *
   3671      * @deprecated
   3672      * @hide
   3673      */
   3674     @Deprecated
   3675     public IBinder getIBinderExtra(String name) {
   3676         return mExtras == null ? null : mExtras.getIBinder(name);
   3677     }
   3678 
   3679     /**
   3680      * Retrieve extended data from the intent.
   3681      *
   3682      * @param name The name of the desired item.
   3683      * @param defaultValue The default value to return in case no item is
   3684      * associated with the key 'name'
   3685      *
   3686      * @return the value of an item that previously added with putExtra()
   3687      * or defaultValue if none was found.
   3688      *
   3689      * @see #putExtra
   3690      *
   3691      * @deprecated
   3692      * @hide
   3693      */
   3694     @Deprecated
   3695     public Object getExtra(String name, Object defaultValue) {
   3696         Object result = defaultValue;
   3697         if (mExtras != null) {
   3698             Object result2 = mExtras.get(name);
   3699             if (result2 != null) {
   3700                 result = result2;
   3701             }
   3702         }
   3703 
   3704         return result;
   3705     }
   3706 
   3707     /**
   3708      * Retrieves a map of extended data from the intent.
   3709      *
   3710      * @return the map of all extras previously added with putExtra(),
   3711      * or null if none have been added.
   3712      */
   3713     public Bundle getExtras() {
   3714         return (mExtras != null)
   3715                 ? new Bundle(mExtras)
   3716                 : null;
   3717     }
   3718 
   3719     /**
   3720      * Retrieve any special flags associated with this intent.  You will
   3721      * normally just set them with {@link #setFlags} and let the system
   3722      * take the appropriate action with them.
   3723      *
   3724      * @return int The currently set flags.
   3725      *
   3726      * @see #setFlags
   3727      */
   3728     public int getFlags() {
   3729         return mFlags;
   3730     }
   3731 
   3732     /**
   3733      * Retrieve the application package name this Intent is limited to.  When
   3734      * resolving an Intent, if non-null this limits the resolution to only
   3735      * components in the given application package.
   3736      *
   3737      * @return The name of the application package for the Intent.
   3738      *
   3739      * @see #resolveActivity
   3740      * @see #setPackage
   3741      */
   3742     public String getPackage() {
   3743         return mPackage;
   3744     }
   3745 
   3746     /**
   3747      * Retrieve the concrete component associated with the intent.  When receiving
   3748      * an intent, this is the component that was found to best handle it (that is,
   3749      * yourself) and will always be non-null; in all other cases it will be
   3750      * null unless explicitly set.
   3751      *
   3752      * @return The name of the application component to handle the intent.
   3753      *
   3754      * @see #resolveActivity
   3755      * @see #setComponent
   3756      */
   3757     public ComponentName getComponent() {
   3758         return mComponent;
   3759     }
   3760 
   3761     /**
   3762      * Get the bounds of the sender of this intent, in screen coordinates.  This can be
   3763      * used as a hint to the receiver for animations and the like.  Null means that there
   3764      * is no source bounds.
   3765      */
   3766     public Rect getSourceBounds() {
   3767         return mSourceBounds;
   3768     }
   3769 
   3770     /**
   3771      * Return the Activity component that should be used to handle this intent.
   3772      * The appropriate component is determined based on the information in the
   3773      * intent, evaluated as follows:
   3774      *
   3775      * <p>If {@link #getComponent} returns an explicit class, that is returned
   3776      * without any further consideration.
   3777      *
   3778      * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
   3779      * category to be considered.
   3780      *
   3781      * <p>If {@link #getAction} is non-NULL, the activity must handle this
   3782      * action.
   3783      *
   3784      * <p>If {@link #resolveType} returns non-NULL, the activity must handle
   3785      * this type.
   3786      *
   3787      * <p>If {@link #addCategory} has added any categories, the activity must
   3788      * handle ALL of the categories specified.
   3789      *
   3790      * <p>If {@link #getPackage} is non-NULL, only activity components in
   3791      * that application package will be considered.
   3792      *
   3793      * <p>If there are no activities that satisfy all of these conditions, a
   3794      * null string is returned.
   3795      *
   3796      * <p>If multiple activities are found to satisfy the intent, the one with
   3797      * the highest priority will be used.  If there are multiple activities
   3798      * with the same priority, the system will either pick the best activity
   3799      * based on user preference, or resolve to a system class that will allow
   3800      * the user to pick an activity and forward from there.
   3801      *
   3802      * <p>This method is implemented simply by calling
   3803      * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
   3804      * true.</p>
   3805      * <p> This API is called for you as part of starting an activity from an
   3806      * intent.  You do not normally need to call it yourself.</p>
   3807      *
   3808      * @param pm The package manager with which to resolve the Intent.
   3809      *
   3810      * @return Name of the component implementing an activity that can
   3811      *         display the intent.
   3812      *
   3813      * @see #setComponent
   3814      * @see #getComponent
   3815      * @see #resolveActivityInfo
   3816      */
   3817     public ComponentName resolveActivity(PackageManager pm) {
   3818         if (mComponent != null) {
   3819             return mComponent;
   3820         }
   3821 
   3822         ResolveInfo info = pm.resolveActivity(
   3823             this, PackageManager.MATCH_DEFAULT_ONLY);
   3824         if (info != null) {
   3825             return new ComponentName(
   3826                     info.activityInfo.applicationInfo.packageName,
   3827                     info.activityInfo.name);
   3828         }
   3829 
   3830         return null;
   3831     }
   3832 
   3833     /**
   3834      * Resolve the Intent into an {@link ActivityInfo}
   3835      * describing the activity that should execute the intent.  Resolution
   3836      * follows the same rules as described for {@link #resolveActivity}, but
   3837      * you get back the completely information about the resolved activity
   3838      * instead of just its class name.
   3839      *
   3840      * @param pm The package manager with which to resolve the Intent.
   3841      * @param flags Addition information to retrieve as per
   3842      * {@link PackageManager#getActivityInfo(ComponentName, int)
   3843      * PackageManager.getActivityInfo()}.
   3844      *
   3845      * @return PackageManager.ActivityInfo
   3846      *
   3847      * @see #resolveActivity
   3848      */
   3849     public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
   3850         ActivityInfo ai = null;
   3851         if (mComponent != null) {
   3852             try {
   3853                 ai = pm.getActivityInfo(mComponent, flags);
   3854             } catch (PackageManager.NameNotFoundException e) {
   3855                 // ignore
   3856             }
   3857         } else {
   3858             ResolveInfo info = pm.resolveActivity(
   3859                 this, PackageManager.MATCH_DEFAULT_ONLY | flags);
   3860             if (info != null) {
   3861                 ai = info.activityInfo;
   3862             }
   3863         }
   3864 
   3865         return ai;
   3866     }
   3867 
   3868     /**
   3869      * Set the general action to be performed.
   3870      *
   3871      * @param action An action name, such as ACTION_VIEW.  Application-specific
   3872      *               actions should be prefixed with the vendor's package name.
   3873      *
   3874      * @return Returns the same Intent object, for chaining multiple calls
   3875      * into a single statement.
   3876      *
   3877      * @see #getAction
   3878      */
   3879     public Intent setAction(String action) {
   3880         mAction = action;
   3881         return this;
   3882     }
   3883 
   3884     /**
   3885      * Set the data this intent is operating on.  This method automatically
   3886      * clears any type that was previously set by {@link #setType}.
   3887      *
   3888      * <p><em>Note: scheme and host name matching in the Android framework is
   3889      * case-sensitive, unlike the formal RFC.  As a result,
   3890      * you should always ensure that you write your Uri with these elements
   3891      * using lower case letters, and normalize any Uris you receive from
   3892      * outside of Android to ensure the scheme and host is lower case.</em></p>
   3893      *
   3894      * @param data The URI of the data this intent is now targeting.
   3895      *
   3896      * @return Returns the same Intent object, for chaining multiple calls
   3897      * into a single statement.
   3898      *
   3899      * @see #getData
   3900      * @see #setType
   3901      * @see #setDataAndType
   3902      */
   3903     public Intent setData(Uri data) {
   3904         mData = data;
   3905         mType = null;
   3906         return this;
   3907     }
   3908 
   3909     /**
   3910      * Set an explicit MIME data type.  This is used to create intents that
   3911      * only specify a type and not data, for example to indicate the type of
   3912      * data to return.  This method automatically clears any data that was
   3913      * previously set by {@link #setData}.
   3914      *
   3915      * <p><em>Note: MIME type matching in the Android framework is
   3916      * case-sensitive, unlike formal RFC MIME types.  As a result,
   3917      * you should always write your MIME types with lower case letters,
   3918      * and any MIME types you receive from outside of Android should be
   3919      * converted to lower case before supplying them here.</em></p>
   3920      *
   3921      * @param type The MIME type of the data being handled by this intent.
   3922      *
   3923      * @return Returns the same Intent object, for chaining multiple calls
   3924      * into a single statement.
   3925      *
   3926      * @see #getType
   3927      * @see #setData
   3928      * @see #setDataAndType
   3929      */
   3930     public Intent setType(String type) {
   3931         mData = null;
   3932         mType = type;
   3933         return this;
   3934     }
   3935 
   3936     /**
   3937      * (Usually optional) Set the data for the intent along with an explicit
   3938      * MIME data type.  This method should very rarely be used -- it allows you
   3939      * to override the MIME type that would ordinarily be inferred from the
   3940      * data with your own type given here.
   3941      *
   3942      * <p><em>Note: MIME type, Uri scheme, and host name matching in the
   3943      * Android framework is case-sensitive, unlike the formal RFC definitions.
   3944      * As a result, you should always write these elements with lower case letters,
   3945      * and normalize any MIME types or Uris you receive from
   3946      * outside of Android to ensure these elements are lower case before
   3947      * supplying them here.</em></p>
   3948      *
   3949      * @param data The URI of the data this intent is now targeting.
   3950      * @param type The MIME type of the data being handled by this intent.
   3951      *
   3952      * @return Returns the same Intent object, for chaining multiple calls
   3953      * into a single statement.
   3954      *
   3955      * @see #setData
   3956      * @see #setType
   3957      */
   3958     public Intent setDataAndType(Uri data, String type) {
   3959         mData = data;
   3960         mType = type;
   3961         return this;
   3962     }
   3963 
   3964     /**
   3965      * Add a new category to the intent.  Categories provide additional detail
   3966      * about the action the intent is perform.  When resolving an intent, only
   3967      * activities that provide <em>all</em> of the requested categories will be
   3968      * used.
   3969      *
   3970      * @param category The desired category.  This can be either one of the
   3971      *               predefined Intent categories, or a custom category in your own
   3972      *               namespace.
   3973      *
   3974      * @return Returns the same Intent object, for chaining multiple calls
   3975      * into a single statement.
   3976      *
   3977      * @see #hasCategory
   3978      * @see #removeCategory
   3979      */
   3980     public Intent addCategory(String category) {
   3981         if (mCategories == null) {
   3982             mCategories = new HashSet<String>();
   3983         }
   3984         mCategories.add(category);
   3985         return this;
   3986     }
   3987 
   3988     /**
   3989      * Remove an category from an intent.
   3990      *
   3991      * @param category The category to remove.
   3992      *
   3993      * @see #addCategory
   3994      */
   3995     public void removeCategory(String category) {
   3996         if (mCategories != null) {
   3997             mCategories.remove(category);
   3998             if (mCategories.size() == 0) {
   3999                 mCategories = null;
   4000             }
   4001         }
   4002     }
   4003 
   4004     /**
   4005      * Add extended data to the intent.  The name must include a package
   4006      * prefix, for example the app com.android.contacts would use names
   4007      * like "com.android.contacts.ShowAll".
   4008      *
   4009      * @param name The name of the extra data, with package prefix.
   4010      * @param value The boolean data value.
   4011      *
   4012      * @return Returns the same Intent object, for chaining multiple calls
   4013      * into a single statement.
   4014      *
   4015      * @see #putExtras
   4016      * @see #removeExtra
   4017      * @see #getBooleanExtra(String, boolean)
   4018      */
   4019     public Intent putExtra(String name, boolean value) {
   4020         if (mExtras == null) {
   4021             mExtras = new Bundle();
   4022         }
   4023         mExtras.putBoolean(name, value);
   4024         return this;
   4025     }
   4026 
   4027     /**
   4028      * Add extended data to the intent.  The name must include a package
   4029      * prefix, for example the app com.android.contacts would use names
   4030      * like "com.android.contacts.ShowAll".
   4031      *
   4032      * @param name The name of the extra data, with package prefix.
   4033      * @param value The byte data value.
   4034      *
   4035      * @return Returns the same Intent object, for chaining multiple calls
   4036      * into a single statement.
   4037      *
   4038      * @see #putExtras
   4039      * @see #removeExtra
   4040      * @see #getByteExtra(String, byte)
   4041      */
   4042     public Intent putExtra(String name, byte value) {
   4043         if (mExtras == null) {
   4044             mExtras = new Bundle();
   4045         }
   4046         mExtras.putByte(name, value);
   4047         return this;
   4048     }
   4049 
   4050     /**
   4051      * Add extended data to the intent.  The name must include a package
   4052      * prefix, for example the app com.android.contacts would use names
   4053      * like "com.android.contacts.ShowAll".
   4054      *
   4055      * @param name The name of the extra data, with package prefix.
   4056      * @param value The char data value.
   4057      *
   4058      * @return Returns the same Intent object, for chaining multiple calls
   4059      * into a single statement.
   4060      *
   4061      * @see #putExtras
   4062      * @see #removeExtra
   4063      * @see #getCharExtra(String, char)
   4064      */
   4065     public Intent putExtra(String name, char value) {
   4066         if (mExtras == null) {
   4067             mExtras = new Bundle();
   4068         }
   4069         mExtras.putChar(name, value);
   4070         return this;
   4071     }
   4072 
   4073     /**
   4074      * Add extended data to the intent.  The name must include a package
   4075      * prefix, for example the app com.android.contacts would use names
   4076      * like "com.android.contacts.ShowAll".
   4077      *
   4078      * @param name The name of the extra data, with package prefix.
   4079      * @param value The short data value.
   4080      *
   4081      * @return Returns the same Intent object, for chaining multiple calls
   4082      * into a single statement.
   4083      *
   4084      * @see #putExtras
   4085      * @see #removeExtra
   4086      * @see #getShortExtra(String, short)
   4087      */
   4088     public Intent putExtra(String name, short value) {
   4089         if (mExtras == null) {
   4090             mExtras = new Bundle();
   4091         }
   4092         mExtras.putShort(name, value);
   4093         return this;
   4094     }
   4095 
   4096     /**
   4097      * Add extended data to the intent.  The name must include a package
   4098      * prefix, for example the app com.android.contacts would use names
   4099      * like "com.android.contacts.ShowAll".
   4100      *
   4101      * @param name The name of the extra data, with package prefix.
   4102      * @param value The integer data value.
   4103      *
   4104      * @return Returns the same Intent object, for chaining multiple calls
   4105      * into a single statement.
   4106      *
   4107      * @see #putExtras
   4108      * @see #removeExtra
   4109      * @see #getIntExtra(String, int)
   4110      */
   4111     public Intent putExtra(String name, int value) {
   4112         if (mExtras == null) {
   4113             mExtras = new Bundle();
   4114         }
   4115         mExtras.putInt(name, value);
   4116         return this;
   4117     }
   4118 
   4119     /**
   4120      * Add extended data to the intent.  The name must include a package
   4121      * prefix, for example the app com.android.contacts would use names
   4122      * like "com.android.contacts.ShowAll".
   4123      *
   4124      * @param name The name of the extra data, with package prefix.
   4125      * @param value The long data value.
   4126      *
   4127      * @return Returns the same Intent object, for chaining multiple calls
   4128      * into a single statement.
   4129      *
   4130      * @see #putExtras
   4131      * @see #removeExtra
   4132      * @see #getLongExtra(String, long)
   4133      */
   4134     public Intent putExtra(String name, long value) {
   4135         if (mExtras == null) {
   4136             mExtras = new Bundle();
   4137         }
   4138         mExtras.putLong(name, value);
   4139         return this;
   4140     }
   4141 
   4142     /**
   4143      * Add extended data to the intent.  The name must include a package
   4144      * prefix, for example the app com.android.contacts would use names
   4145      * like "com.android.contacts.ShowAll".
   4146      *
   4147      * @param name The name of the extra data, with package prefix.
   4148      * @param value The float data value.
   4149      *
   4150      * @return Returns the same Intent object, for chaining multiple calls
   4151      * into a single statement.
   4152      *
   4153      * @see #putExtras
   4154      * @see #removeExtra
   4155      * @see #getFloatExtra(String, float)
   4156      */
   4157     public Intent putExtra(String name, float value) {
   4158         if (mExtras == null) {
   4159             mExtras = new Bundle();
   4160         }
   4161         mExtras.putFloat(name, value);
   4162         return this;
   4163     }
   4164 
   4165     /**
   4166      * Add extended data to the intent.  The name must include a package
   4167      * prefix, for example the app com.android.contacts would use names
   4168      * like "com.android.contacts.ShowAll".
   4169      *
   4170      * @param name The name of the extra data, with package prefix.
   4171      * @param value The double data value.
   4172      *
   4173      * @return Returns the same Intent object, for chaining multiple calls
   4174      * into a single statement.
   4175      *
   4176      * @see #putExtras
   4177      * @see #removeExtra
   4178      * @see #getDoubleExtra(String, double)
   4179      */
   4180     public Intent putExtra(String name, double value) {
   4181         if (mExtras == null) {
   4182             mExtras = new Bundle();
   4183         }
   4184         mExtras.putDouble(name, value);
   4185         return this;
   4186     }
   4187 
   4188     /**
   4189      * Add extended data to the intent.  The name must include a package
   4190      * prefix, for example the app com.android.contacts would use names
   4191      * like "com.android.contacts.ShowAll".
   4192      *
   4193      * @param name The name of the extra data, with package prefix.
   4194      * @param value The String data value.
   4195      *
   4196      * @return Returns the same Intent object, for chaining multiple calls
   4197      * into a single statement.
   4198      *
   4199      * @see #putExtras
   4200      * @see #removeExtra
   4201      * @see #getStringExtra(String)
   4202      */
   4203     public Intent putExtra(String name, String value) {
   4204         if (mExtras == null) {
   4205             mExtras = new Bundle();
   4206         }
   4207         mExtras.putString(name, value);
   4208         return this;
   4209     }
   4210 
   4211     /**
   4212      * Add extended data to the intent.  The name must include a package
   4213      * prefix, for example the app com.android.contacts would use names
   4214      * like "com.android.contacts.ShowAll".
   4215      *
   4216      * @param name The name of the extra data, with package prefix.
   4217      * @param value The CharSequence data value.
   4218      *
   4219      * @return Returns the same Intent object, for chaining multiple calls
   4220      * into a single statement.
   4221      *
   4222      * @see #putExtras
   4223      * @see #removeExtra
   4224      * @see #getCharSequenceExtra(String)
   4225      */
   4226     public Intent putExtra(String name, CharSequence value) {
   4227         if (mExtras == null) {
   4228             mExtras = new Bundle();
   4229         }
   4230         mExtras.putCharSequence(name, value);
   4231         return this;
   4232     }
   4233 
   4234     /**
   4235      * Add extended data to the intent.  The name must include a package
   4236      * prefix, for example the app com.android.contacts would use names
   4237      * like "com.android.contacts.ShowAll".
   4238      *
   4239      * @param name The name of the extra data, with package prefix.
   4240      * @param value The Parcelable data value.
   4241      *
   4242      * @return Returns the same Intent object, for chaining multiple calls
   4243      * into a single statement.
   4244      *
   4245      * @see #putExtras
   4246      * @see #removeExtra
   4247      * @see #getParcelableExtra(String)
   4248      */
   4249     public Intent putExtra(String name, Parcelable value) {
   4250         if (mExtras == null) {
   4251             mExtras = new Bundle();
   4252         }
   4253         mExtras.putParcelable(name, value);
   4254         return this;
   4255     }
   4256 
   4257     /**
   4258      * Add extended data to the intent.  The name must include a package
   4259      * prefix, for example the app com.android.contacts would use names
   4260      * like "com.android.contacts.ShowAll".
   4261      *
   4262      * @param name The name of the extra data, with package prefix.
   4263      * @param value The Parcelable[] data value.
   4264      *
   4265      * @return Returns the same Intent object, for chaining multiple calls
   4266      * into a single statement.
   4267      *
   4268      * @see #putExtras
   4269      * @see #removeExtra
   4270      * @see #getParcelableArrayExtra(String)
   4271      */
   4272     public Intent putExtra(String name, Parcelable[] value) {
   4273         if (mExtras == null) {
   4274             mExtras = new Bundle();
   4275         }
   4276         mExtras.putParcelableArray(name, value);
   4277         return this;
   4278     }
   4279 
   4280     /**
   4281      * Add extended data to the intent.  The name must include a package
   4282      * prefix, for example the app com.android.contacts would use names
   4283      * like "com.android.contacts.ShowAll".
   4284      *
   4285      * @param name The name of the extra data, with package prefix.
   4286      * @param value The ArrayList<Parcelable> data value.
   4287      *
   4288      * @return Returns the same Intent object, for chaining multiple calls
   4289      * into a single statement.
   4290      *
   4291      * @see #putExtras
   4292      * @see #removeExtra
   4293      * @see #getParcelableArrayListExtra(String)
   4294      */
   4295     public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
   4296         if (mExtras == null) {
   4297             mExtras = new Bundle();
   4298         }
   4299         mExtras.putParcelableArrayList(name, value);
   4300         return this;
   4301     }
   4302 
   4303     /**
   4304      * Add extended data to the intent.  The name must include a package
   4305      * prefix, for example the app com.android.contacts would use names
   4306      * like "com.android.contacts.ShowAll".
   4307      *
   4308      * @param name The name of the extra data, with package prefix.
   4309      * @param value The ArrayList<Integer> data value.
   4310      *
   4311      * @return Returns the same Intent object, for chaining multiple calls
   4312      * into a single statement.
   4313      *
   4314      * @see #putExtras
   4315      * @see #removeExtra
   4316      * @see #getIntegerArrayListExtra(String)
   4317      */
   4318     public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
   4319         if (mExtras == null) {
   4320             mExtras = new Bundle();
   4321         }
   4322         mExtras.putIntegerArrayList(name, value);
   4323         return this;
   4324     }
   4325 
   4326     /**
   4327      * Add extended data to the intent.  The name must include a package
   4328      * prefix, for example the app com.android.contacts would use names
   4329      * like "com.android.contacts.ShowAll".
   4330      *
   4331      * @param name The name of the extra data, with package prefix.
   4332      * @param value The ArrayList<String> data value.
   4333      *
   4334      * @return Returns the same Intent object, for chaining multiple calls
   4335      * into a single statement.
   4336      *
   4337      * @see #putExtras
   4338      * @see #removeExtra
   4339      * @see #getStringArrayListExtra(String)
   4340      */
   4341     public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
   4342         if (mExtras == null) {
   4343             mExtras = new Bundle();
   4344         }
   4345         mExtras.putStringArrayList(name, value);
   4346         return this;
   4347     }
   4348 
   4349     /**
   4350      * Add extended data to the intent.  The name must include a package
   4351      * prefix, for example the app com.android.contacts would use names
   4352      * like "com.android.contacts.ShowAll".
   4353      *
   4354      * @param name The name of the extra data, with package prefix.
   4355      * @param value The ArrayList<CharSequence> data value.
   4356      *
   4357      * @return Returns the same Intent object, for chaining multiple calls
   4358      * into a single statement.
   4359      *
   4360      * @see #putExtras
   4361      * @see #removeExtra
   4362      * @see #getCharSequenceArrayListExtra(String)
   4363      */
   4364     public Intent putCharSequenceArrayListExtra(String name, ArrayList<CharSequence> value) {
   4365         if (mExtras == null) {
   4366             mExtras = new Bundle();
   4367         }
   4368         mExtras.putCharSequenceArrayList(name, value);
   4369         return this;
   4370     }
   4371 
   4372     /**
   4373      * Add extended data to the intent.  The name must include a package
   4374      * prefix, for example the app com.android.contacts would use names
   4375      * like "com.android.contacts.ShowAll".
   4376      *
   4377      * @param name The name of the extra data, with package prefix.
   4378      * @param value The Serializable data value.
   4379      *
   4380      * @return Returns the same Intent object, for chaining multiple calls
   4381      * into a single statement.
   4382      *
   4383      * @see #putExtras
   4384      * @see #removeExtra
   4385      * @see #getSerializableExtra(String)
   4386      */
   4387     public Intent putExtra(String name, Serializable value) {
   4388         if (mExtras == null) {
   4389             mExtras = new Bundle();
   4390         }
   4391         mExtras.putSerializable(name, value);
   4392         return this;
   4393     }
   4394 
   4395     /**
   4396      * Add extended data to the intent.  The name must include a package
   4397      * prefix, for example the app com.android.contacts would use names
   4398      * like "com.android.contacts.ShowAll".
   4399      *
   4400      * @param name The name of the extra data, with package prefix.
   4401      * @param value The boolean array data value.
   4402      *
   4403      * @return Returns the same Intent object, for chaining multiple calls
   4404      * into a single statement.
   4405      *
   4406      * @see #putExtras
   4407      * @see #removeExtra
   4408      * @see #getBooleanArrayExtra(String)
   4409      */
   4410     public Intent putExtra(String name, boolean[] value) {
   4411         if (mExtras == null) {
   4412             mExtras = new Bundle();
   4413         }
   4414         mExtras.putBooleanArray(name, value);
   4415         return this;
   4416     }
   4417 
   4418     /**
   4419      * Add extended data to the intent.  The name must include a package
   4420      * prefix, for example the app com.android.contacts would use names
   4421      * like "com.android.contacts.ShowAll".
   4422      *
   4423      * @param name The name of the extra data, with package prefix.
   4424      * @param value The byte array data value.
   4425      *
   4426      * @return Returns the same Intent object, for chaining multiple calls
   4427      * into a single statement.
   4428      *
   4429      * @see #putExtras
   4430      * @see #removeExtra
   4431      * @see #getByteArrayExtra(String)
   4432      */
   4433     public Intent putExtra(String name, byte[] value) {
   4434         if (mExtras == null) {
   4435             mExtras = new Bundle();
   4436         }
   4437         mExtras.putByteArray(name, value);
   4438         return this;
   4439     }
   4440 
   4441     /**
   4442      * Add extended data to the intent.  The name must include a package
   4443      * prefix, for example the app com.android.contacts would use names
   4444      * like "com.android.contacts.ShowAll".
   4445      *
   4446      * @param name The name of the extra data, with package prefix.
   4447      * @param value The short array data value.
   4448      *
   4449      * @return Returns the same Intent object, for chaining multiple calls
   4450      * into a single statement.
   4451      *
   4452      * @see #putExtras
   4453      * @see #removeExtra
   4454      * @see #getShortArrayExtra(String)
   4455      */
   4456     public Intent putExtra(String name, short[] value) {
   4457         if (mExtras == null) {
   4458             mExtras = new Bundle();
   4459         }
   4460         mExtras.putShortArray(name, value);
   4461         return this;
   4462     }
   4463 
   4464     /**
   4465      * Add extended data to the intent.  The name must include a package
   4466      * prefix, for example the app com.android.contacts would use names
   4467      * like "com.android.contacts.ShowAll".
   4468      *
   4469      * @param name The name of the extra data, with package prefix.
   4470      * @param value The char array data value.
   4471      *
   4472      * @return Returns the same Intent object, for chaining multiple calls
   4473      * into a single statement.
   4474      *
   4475      * @see #putExtras
   4476      * @see #removeExtra
   4477      * @see #getCharArrayExtra(String)
   4478      */
   4479     public Intent putExtra(String name, char[] value) {
   4480         if (mExtras == null) {
   4481             mExtras = new Bundle();
   4482         }
   4483         mExtras.putCharArray(name, value);
   4484         return this;
   4485     }
   4486 
   4487     /**
   4488      * Add extended data to the intent.  The name must include a package
   4489      * prefix, for example the app com.android.contacts would use names
   4490      * like "com.android.contacts.ShowAll".
   4491      *
   4492      * @param name The name of the extra data, with package prefix.
   4493      * @param value The int array data value.
   4494      *
   4495      * @return Returns the same Intent object, for chaining multiple calls
   4496      * into a single statement.
   4497      *
   4498      * @see #putExtras
   4499      * @see #removeExtra
   4500      * @see #getIntArrayExtra(String)
   4501      */
   4502     public Intent putExtra(String name, int[] value) {
   4503         if (mExtras == null) {
   4504             mExtras = new Bundle();
   4505         }
   4506         mExtras.putIntArray(name, value);
   4507         return this;
   4508     }
   4509 
   4510     /**
   4511      * Add extended data to the intent.  The name must include a package
   4512      * prefix, for example the app com.android.contacts would use names
   4513      * like "com.android.contacts.ShowAll".
   4514      *
   4515      * @param name The name of the extra data, with package prefix.
   4516      * @param value The byte array data value.
   4517      *
   4518      * @return Returns the same Intent object, for chaining multiple calls
   4519      * into a single statement.
   4520      *
   4521      * @see #putExtras
   4522      * @see #removeExtra
   4523      * @see #getLongArrayExtra(String)
   4524      */
   4525     public Intent putExtra(String name, long[] value) {
   4526         if (mExtras == null) {
   4527             mExtras = new Bundle();
   4528         }
   4529         mExtras.putLongArray(name, value);
   4530         return this;
   4531     }
   4532 
   4533     /**
   4534      * Add extended data to the intent.  The name must include a package
   4535      * prefix, for example the app com.android.contacts would use names
   4536      * like "com.android.contacts.ShowAll".
   4537      *
   4538      * @param name The name of the extra data, with package prefix.
   4539      * @param value The float array data value.
   4540      *
   4541      * @return Returns the same Intent object, for chaining multiple calls
   4542      * into a single statement.
   4543      *
   4544      * @see #putExtras
   4545      * @see #removeExtra
   4546      * @see #getFloatArrayExtra(String)
   4547      */
   4548     public Intent putExtra(String name, float[] value) {
   4549         if (mExtras == null) {
   4550             mExtras = new Bundle();
   4551         }
   4552         mExtras.putFloatArray(name, value);
   4553         return this;
   4554     }
   4555 
   4556     /**
   4557      * Add extended data to the intent.  The name must include a package
   4558      * prefix, for example the app com.android.contacts would use names
   4559      * like "com.android.contacts.ShowAll".
   4560      *
   4561      * @param name The name of the extra data, with package prefix.
   4562      * @param value The double array data value.
   4563      *
   4564      * @return Returns the same Intent object, for chaining multiple calls
   4565      * into a single statement.
   4566      *
   4567      * @see #putExtras
   4568      * @see #removeExtra
   4569      * @see #getDoubleArrayExtra(String)
   4570      */
   4571     public Intent putExtra(String name, double[] value) {
   4572         if (mExtras == null) {
   4573             mExtras = new Bundle();
   4574         }
   4575         mExtras.putDoubleArray(name, value);
   4576         return this;
   4577     }
   4578 
   4579     /**
   4580      * Add extended data to the intent.  The name must include a package
   4581      * prefix, for example the app com.android.contacts would use names
   4582      * like "com.android.contacts.ShowAll".
   4583      *
   4584      * @param name The name of the extra data, with package prefix.
   4585      * @param value The String array data value.
   4586      *
   4587      * @return Returns the same Intent object, for chaining multiple calls
   4588      * into a single statement.
   4589      *
   4590      * @see #putExtras
   4591      * @see #removeExtra
   4592      * @see #getStringArrayExtra(String)
   4593      */
   4594     public Intent putExtra(String name, String[] value) {
   4595         if (mExtras == null) {
   4596             mExtras = new Bundle();
   4597         }
   4598         mExtras.putStringArray(name, value);
   4599         return this;
   4600     }
   4601 
   4602     /**
   4603      * Add extended data to the intent.  The name must include a package
   4604      * prefix, for example the app com.android.contacts would use names
   4605      * like "com.android.contacts.ShowAll".
   4606      *
   4607      * @param name The name of the extra data, with package prefix.
   4608      * @param value The CharSequence array data value.
   4609      *
   4610      * @return Returns the same Intent object, for chaining multiple calls
   4611      * into a single statement.
   4612      *
   4613      * @see #putExtras
   4614      * @see #removeExtra
   4615      * @see #getCharSequenceArrayExtra(String)
   4616      */
   4617     public Intent putExtra(String name, CharSequence[] value) {
   4618         if (mExtras == null) {
   4619             mExtras = new Bundle();
   4620         }
   4621         mExtras.putCharSequenceArray(name, value);
   4622         return this;
   4623     }
   4624 
   4625     /**
   4626      * Add extended data to the intent.  The name must include a package
   4627      * prefix, for example the app com.android.contacts would use names
   4628      * like "com.android.contacts.ShowAll".
   4629      *
   4630      * @param name The name of the extra data, with package prefix.
   4631      * @param value The Bundle data value.
   4632      *
   4633      * @return Returns the same Intent object, for chaining multiple calls
   4634      * into a single statement.
   4635      *
   4636      * @see #putExtras
   4637      * @see #removeExtra
   4638      * @see #getBundleExtra(String)
   4639      */
   4640     public Intent putExtra(String name, Bundle value) {
   4641         if (mExtras == null) {
   4642             mExtras = new Bundle();
   4643         }
   4644         mExtras.putBundle(name, value);
   4645         return this;
   4646     }
   4647 
   4648     /**
   4649      * Add extended data to the intent.  The name must include a package
   4650      * prefix, for example the app com.android.contacts would use names
   4651      * like "com.android.contacts.ShowAll".
   4652      *
   4653      * @param name The name of the extra data, with package prefix.
   4654      * @param value The IBinder data value.
   4655      *
   4656      * @return Returns the same Intent object, for chaining multiple calls
   4657      * into a single statement.
   4658      *
   4659      * @see #putExtras
   4660      * @see #removeExtra
   4661      * @see #getIBinderExtra(String)
   4662      *
   4663      * @deprecated
   4664      * @hide
   4665      */
   4666     @Deprecated
   4667     public Intent putExtra(String name, IBinder value) {
   4668         if (mExtras == null) {
   4669             mExtras = new Bundle();
   4670         }
   4671         mExtras.putIBinder(name, value);
   4672         return this;
   4673     }
   4674 
   4675     /**
   4676      * Copy all extras in 'src' in to this intent.
   4677      *
   4678      * @param src Contains the extras to copy.
   4679      *
   4680      * @see #putExtra
   4681      */
   4682     public Intent putExtras(Intent src) {
   4683         if (src.mExtras != null) {
   4684             if (mExtras == null) {
   4685                 mExtras = new Bundle(src.mExtras);
   4686             } else {
   4687                 mExtras.putAll(src.mExtras);
   4688             }
   4689         }
   4690         return this;
   4691     }
   4692 
   4693     /**
   4694      * Add a set of extended data to the intent.  The keys must include a package
   4695      * prefix, for example the app com.android.contacts would use names
   4696      * like "com.android.contacts.ShowAll".
   4697      *
   4698      * @param extras The Bundle of extras to add to this intent.
   4699      *
   4700      * @see #putExtra
   4701      * @see #removeExtra
   4702      */
   4703     public Intent putExtras(Bundle extras) {
   4704         if (mExtras == null) {
   4705             mExtras = new Bundle();
   4706         }
   4707         mExtras.putAll(extras);
   4708         return this;
   4709     }
   4710 
   4711     /**
   4712      * Completely replace the extras in the Intent with the extras in the
   4713      * given Intent.
   4714      *
   4715      * @param src The exact extras contained in this Intent are copied
   4716      * into the target intent, replacing any that were previously there.
   4717      */
   4718     public Intent replaceExtras(Intent src) {
   4719         mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
   4720         return this;
   4721     }
   4722 
   4723     /**
   4724      * Completely replace the extras in the Intent with the given Bundle of
   4725      * extras.
   4726      *
   4727      * @param extras The new set of extras in the Intent, or null to erase
   4728      * all extras.
   4729      */
   4730     public Intent replaceExtras(Bundle extras) {
   4731         mExtras = extras != null ? new Bundle(extras) : null;
   4732         return this;
   4733     }
   4734 
   4735     /**
   4736      * Remove extended data from the intent.
   4737      *
   4738      * @see #putExtra
   4739      */
   4740     public void removeExtra(String name) {
   4741         if (mExtras != null) {
   4742             mExtras.remove(name);
   4743             if (mExtras.size() == 0) {
   4744                 mExtras = null;
   4745             }
   4746         }
   4747     }
   4748 
   4749     /**
   4750      * Set special flags controlling how this intent is handled.  Most values
   4751      * here depend on the type of component being executed by the Intent,
   4752      * specifically the FLAG_ACTIVITY_* flags are all for use with
   4753      * {@link Context#startActivity Context.startActivity()} and the
   4754      * FLAG_RECEIVER_* flags are all for use with
   4755      * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
   4756      *
   4757      * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
   4758      * Activities and Tasks</a> documentation for important information on how some of these options impact
   4759      * the behavior of your application.
   4760      *
   4761      * @param flags The desired flags.
   4762      *
   4763      * @return Returns the same Intent object, for chaining multiple calls
   4764      * into a single statement.
   4765      *
   4766      * @see #getFlags
   4767      * @see #addFlags
   4768      *
   4769      * @see #FLAG_GRANT_READ_URI_PERMISSION
   4770      * @see #FLAG_GRANT_WRITE_URI_PERMISSION
   4771      * @see #FLAG_DEBUG_LOG_RESOLUTION
   4772      * @see #FLAG_FROM_BACKGROUND
   4773      * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
   4774      * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
   4775      * @see #FLAG_ACTIVITY_CLEAR_TOP
   4776      * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
   4777      * @see #FLAG_ACTIVITY_FORWARD_RESULT
   4778      * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
   4779      * @see #FLAG_ACTIVITY_MULTIPLE_TASK
   4780      * @see #FLAG_ACTIVITY_NEW_TASK
   4781      * @see #FLAG_ACTIVITY_NO_HISTORY
   4782      * @see #FLAG_ACTIVITY_NO_USER_ACTION
   4783      * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
   4784      * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
   4785      * @see #FLAG_ACTIVITY_SINGLE_TOP
   4786      * @see #FLAG_RECEIVER_REGISTERED_ONLY
   4787      */
   4788     public Intent setFlags(int flags) {
   4789         mFlags = flags;
   4790         return this;
   4791     }
   4792 
   4793     /**
   4794      * Add additional flags to the intent (or with existing flags
   4795      * value).
   4796      *
   4797      * @param flags The new flags to set.
   4798      *
   4799      * @return Returns the same Intent object, for chaining multiple calls
   4800      * into a single statement.
   4801      *
   4802      * @see #setFlags
   4803      */
   4804     public Intent addFlags(int flags) {
   4805         mFlags |= flags;
   4806         return this;
   4807     }
   4808 
   4809     /**
   4810      * (Usually optional) Set an explicit application package name that limits
   4811      * the components this Intent will resolve to.  If left to the default
   4812      * value of null, all components in all applications will considered.
   4813      * If non-null, the Intent can only match the components in the given
   4814      * application package.
   4815      *
   4816      * @param packageName The name of the application package to handle the
   4817      * intent, or null to allow any application package.
   4818      *
   4819      * @return Returns the same Intent object, for chaining multiple calls
   4820      * into a single statement.
   4821      *
   4822      * @see #getPackage
   4823      * @see #resolveActivity
   4824      */
   4825     public Intent setPackage(String packageName) {
   4826         mPackage = packageName;
   4827         return this;
   4828     }
   4829 
   4830     /**
   4831      * (Usually optional) Explicitly set the component to handle the intent.
   4832      * If left with the default value of null, the system will determine the
   4833      * appropriate class to use based on the other fields (action, data,
   4834      * type, categories) in the Intent.  If this class is defined, the
   4835      * specified class will always be used regardless of the other fields.  You
   4836      * should only set this value when you know you absolutely want a specific
   4837      * class to be used; otherwise it is better to let the system find the
   4838      * appropriate class so that you will respect the installed applications
   4839      * and user preferences.
   4840      *
   4841      * @param component The name of the application component to handle the
   4842      * intent, or null to let the system find one for you.
   4843      *
   4844      * @return Returns the same Intent object, for chaining multiple calls
   4845      * into a single statement.
   4846      *
   4847      * @see #setClass
   4848      * @see #setClassName(Context, String)
   4849      * @see #setClassName(String, String)
   4850      * @see #getComponent
   4851      * @see #resolveActivity
   4852      */
   4853     public Intent setComponent(ComponentName component) {
   4854         mComponent = component;
   4855         return this;
   4856     }
   4857 
   4858     /**
   4859      * Convenience for calling {@link #setComponent} with an
   4860      * explicit class name.
   4861      *
   4862      * @param packageContext A Context of the application package implementing
   4863      * this class.
   4864      * @param className The name of a class inside of the application package
   4865      * that will be used as the component for this Intent.
   4866      *
   4867      * @return Returns the same Intent object, for chaining multiple calls
   4868      * into a single statement.
   4869      *
   4870      * @see #setComponent
   4871      * @see #setClass
   4872      */
   4873     public Intent setClassName(Context packageContext, String className) {
   4874         mComponent = new ComponentName(packageContext, className);
   4875         return this;
   4876     }
   4877 
   4878     /**
   4879      * Convenience for calling {@link #setComponent} with an
   4880      * explicit application package name and class name.
   4881      *
   4882      * @param packageName The name of the package implementing the desired
   4883      * component.
   4884      * @param className The name of a class inside of the application package
   4885      * that will be used as the component for this Intent.
   4886      *
   4887      * @return Returns the same Intent object, for chaining multiple calls
   4888      * into a single statement.
   4889      *
   4890      * @see #setComponent
   4891      * @see #setClass
   4892      */
   4893     public Intent setClassName(String packageName, String className) {
   4894         mComponent = new ComponentName(packageName, className);
   4895         return this;
   4896     }
   4897 
   4898     /**
   4899      * Convenience for calling {@link #setComponent(ComponentName)} with the
   4900      * name returned by a {@link Class} object.
   4901      *
   4902      * @param packageContext A Context of the application package implementing
   4903      * this class.
   4904      * @param cls The class name to set, equivalent to
   4905      *            <code>setClassName(context, cls.getName())</code>.
   4906      *
   4907      * @return Returns the same Intent object, for chaining multiple calls
   4908      * into a single statement.
   4909      *
   4910      * @see #setComponent
   4911      */
   4912     public Intent setClass(Context packageContext, Class<?> cls) {
   4913         mComponent = new ComponentName(packageContext, cls);
   4914         return this;
   4915     }
   4916 
   4917     /**
   4918      * Set the bounds of the sender of this intent, in screen coordinates.  This can be
   4919      * used as a hint to the receiver for animations and the like.  Null means that there
   4920      * is no source bounds.
   4921      */
   4922     public void setSourceBounds(Rect r) {
   4923         if (r != null) {
   4924             mSourceBounds = new Rect(r);
   4925         } else {
   4926             r = null;
   4927         }
   4928     }
   4929 
   4930     /**
   4931      * Use with {@link #fillIn} to allow the current action value to be
   4932      * overwritten, even if it is already set.
   4933      */
   4934     public static final int FILL_IN_ACTION = 1<<0;
   4935 
   4936     /**
   4937      * Use with {@link #fillIn} to allow the current data or type value
   4938      * overwritten, even if it is already set.
   4939      */
   4940     public static final int FILL_IN_DATA = 1<<1;
   4941 
   4942     /**
   4943      * Use with {@link #fillIn} to allow the current categories to be
   4944      * overwritten, even if they are already set.
   4945      */
   4946     public static final int FILL_IN_CATEGORIES = 1<<2;
   4947 
   4948     /**
   4949      * Use with {@link #fillIn} to allow the current component value to be
   4950      * overwritten, even if it is already set.
   4951      */
   4952     public static final int FILL_IN_COMPONENT = 1<<3;
   4953 
   4954     /**
   4955      * Use with {@link #fillIn} to allow the current package value to be
   4956      * overwritten, even if it is already set.
   4957      */
   4958     public static final int FILL_IN_PACKAGE = 1<<4;
   4959 
   4960     /**
   4961      * Use with {@link #fillIn} to allow the current package value to be
   4962      * overwritten, even if it is already set.
   4963      */
   4964     public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
   4965 
   4966     /**
   4967      * Copy the contents of <var>other</var> in to this object, but only
   4968      * where fields are not defined by this object.  For purposes of a field
   4969      * being defined, the following pieces of data in the Intent are
   4970      * considered to be separate fields:
   4971      *
   4972      * <ul>
   4973      * <li> action, as set by {@link #setAction}.
   4974      * <li> data URI and MIME type, as set by {@link #setData(Uri)},
   4975      * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
   4976      * <li> categories, as set by {@link #addCategory}.
   4977      * <li> package, as set by {@link #setPackage}.
   4978      * <li> component, as set by {@link #setComponent(ComponentName)} or
   4979      * related methods.
   4980      * <li> source bounds, as set by {@link #setSourceBounds}
   4981      * <li> each top-level name in the associated extras.
   4982      * </ul>
   4983      *
   4984      * <p>In addition, you can use the {@link #FILL_IN_ACTION},
   4985      * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
   4986      * and {@link #FILL_IN_COMPONENT} to override the restriction where the
   4987      * corresponding field will not be replaced if it is already set.
   4988      *
   4989      * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
   4990      * specified.
   4991      *
   4992      * <p>For example, consider Intent A with {data="foo", categories="bar"}
   4993      * and Intent B with {action="gotit", data-type="some/thing",
   4994      * categories="one","two"}.
   4995      *
   4996      * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
   4997      * containing: {action="gotit", data-type="some/thing",
   4998      * categories="bar"}.
   4999      *
   5000      * @param other Another Intent whose values are to be used to fill in
   5001      * the current one.
   5002      * @param flags Options to control which fields can be filled in.
   5003      *
   5004      * @return Returns a bit mask of {@link #FILL_IN_ACTION},
   5005      * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
   5006      * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
   5007      */
   5008     public int fillIn(Intent other, int flags) {
   5009         int changes = 0;
   5010         if (other.mAction != null
   5011                 && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
   5012             mAction = other.mAction;
   5013             changes |= FILL_IN_ACTION;
   5014         }
   5015         if ((other.mData != null || other.mType != null)
   5016                 && ((mData == null && mType == null)
   5017                         || (flags&FILL_IN_DATA) != 0)) {
   5018             mData = other.mData;
   5019             mType = other.mType;
   5020             changes |= FILL_IN_DATA;
   5021         }
   5022         if (other.mCategories != null
   5023                 && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
   5024             if (other.mCategories != null) {
   5025                 mCategories = new HashSet<String>(other.mCategories);
   5026             }
   5027             changes |= FILL_IN_CATEGORIES;
   5028         }
   5029         if (other.mPackage != null
   5030                 && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
   5031             mPackage = other.mPackage;
   5032             changes |= FILL_IN_PACKAGE;
   5033         }
   5034         // Component is special: it can -only- be set if explicitly allowed,
   5035         // since otherwise the sender could force the intent somewhere the
   5036         // originator didn't intend.
   5037         if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
   5038             mComponent = other.mComponent;
   5039             changes |= FILL_IN_COMPONENT;
   5040         }
   5041         mFlags |= other.mFlags;
   5042         if (other.mSourceBounds != null
   5043                 && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
   5044             mSourceBounds = new Rect(other.mSourceBounds);
   5045             changes |= FILL_IN_SOURCE_BOUNDS;
   5046         }
   5047         if (mExtras == null) {
   5048             if (other.mExtras != null) {
   5049                 mExtras = new Bundle(other.mExtras);
   5050             }
   5051         } else if (other.mExtras != null) {
   5052             try {
   5053                 Bundle newb = new Bundle(other.mExtras);
   5054                 newb.putAll(mExtras);
   5055                 mExtras = newb;
   5056             } catch (RuntimeException e) {
   5057                 // Modifying the extras can cause us to unparcel the contents
   5058                 // of the bundle, and if we do this in the system process that
   5059                 // may fail.  We really should handle this (i.e., the Bundle
   5060                 // impl shouldn't be on top of a plain map), but for now just
   5061                 // ignore it and keep the original contents. :(
   5062                 Log.w("Intent", "Failure filling in extras", e);
   5063             }
   5064         }
   5065         return changes;
   5066     }
   5067 
   5068     /**
   5069      * Wrapper class holding an Intent and implementing comparisons on it for
   5070      * the purpose of filtering.  The class implements its
   5071      * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
   5072      * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
   5073      * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
   5074      * on the wrapped Intent.
   5075      */
   5076     public static final class FilterComparison {
   5077         private final Intent mIntent;
   5078         private final int mHashCode;
   5079 
   5080         public FilterComparison(Intent intent) {
   5081             mIntent = intent;
   5082             mHashCode = intent.filterHashCode();
   5083         }
   5084 
   5085         /**
   5086          * Return the Intent that this FilterComparison represents.
   5087          * @return Returns the Intent held by the FilterComparison.  Do
   5088          * not modify!
   5089          */
   5090         public Intent getIntent() {
   5091             return mIntent;
   5092         }
   5093 
   5094         @Override
   5095         public boolean equals(Object obj) {
   5096             if (obj instanceof FilterComparison) {
   5097                 Intent other = ((FilterComparison)obj).mIntent;
   5098                 return mIntent.filterEquals(other);
   5099             }
   5100             return false;
   5101         }
   5102 
   5103         @Override
   5104         public int hashCode() {
   5105             return mHashCode;
   5106         }
   5107     }
   5108 
   5109     /**
   5110      * Determine if two intents are the same for the purposes of intent
   5111      * resolution (filtering). That is, if their action, data, type,
   5112      * class, and categories are the same.  This does <em>not</em> compare
   5113      * any extra data included in the intents.
   5114      *
   5115      * @param other The other Intent to compare against.
   5116      *
   5117      * @return Returns true if action, data, type, class, and categories
   5118      *         are the same.
   5119      */
   5120     public boolean filterEquals(Intent other) {
   5121         if (other == null) {
   5122             return false;
   5123         }
   5124         if (mAction != other.mAction) {
   5125             if (mAction != null) {
   5126                 if (!mAction.equals(other.mAction)) {
   5127                     return false;
   5128                 }
   5129             } else {
   5130                 if (!other.mAction.equals(mAction)) {
   5131                     return false;
   5132                 }
   5133             }
   5134         }
   5135         if (mData != other.mData) {
   5136             if (mData != null) {
   5137                 if (!mData.equals(other.mData)) {
   5138                     return false;
   5139                 }
   5140             } else {
   5141                 if (!other.mData.equals(mData)) {
   5142                     return false;
   5143                 }
   5144             }
   5145         }
   5146         if (mType != other.mType) {
   5147             if (mType != null) {
   5148                 if (!mType.equals(other.mType)) {
   5149                     return false;
   5150                 }
   5151             } else {
   5152                 if (!other.mType.equals(mType)) {
   5153                     return false;
   5154                 }
   5155             }
   5156         }
   5157         if (mPackage != other.mPackage) {
   5158             if (mPackage != null) {
   5159                 if (!mPackage.equals(other.mPackage)) {
   5160                     return false;
   5161                 }
   5162             } else {
   5163                 if (!other.mPackage.equals(mPackage)) {
   5164                     return false;
   5165                 }
   5166             }
   5167         }
   5168         if (mComponent != other.mComponent) {
   5169             if (mComponent != null) {
   5170                 if (!mComponent.equals(other.mComponent)) {
   5171                     return false;
   5172                 }
   5173             } else {
   5174                 if (!other.mComponent.equals(mComponent)) {
   5175                     return false;
   5176                 }
   5177             }
   5178         }
   5179         if (mCategories != other.mCategories) {
   5180             if (mCategories != null) {
   5181                 if (!mCategories.equals(other.mCategories)) {
   5182                     return false;
   5183                 }
   5184             } else {
   5185                 if (!other.mCategories.equals(mCategories)) {
   5186                     return false;
   5187                 }
   5188             }
   5189         }
   5190 
   5191         return true;
   5192     }
   5193 
   5194     /**
   5195      * Generate hash code that matches semantics of filterEquals().
   5196      *
   5197      * @return Returns the hash value of the action, data, type, class, and
   5198      *         categories.
   5199      *
   5200      * @see #filterEquals
   5201      */
   5202     public int filterHashCode() {
   5203         int code = 0;
   5204         if (mAction != null) {
   5205             code += mAction.hashCode();
   5206         }
   5207         if (mData != null) {
   5208             code += mData.hashCode();
   5209         }
   5210         if (mType != null) {
   5211             code += mType.hashCode();
   5212         }
   5213         if (mPackage != null) {
   5214             code += mPackage.hashCode();
   5215         }
   5216         if (mComponent != null) {
   5217             code += mComponent.hashCode();
   5218         }
   5219         if (mCategories != null) {
   5220             code += mCategories.hashCode();
   5221         }
   5222         return code;
   5223     }
   5224 
   5225     @Override
   5226     public String toString() {
   5227         StringBuilder   b = new StringBuilder(128);
   5228 
   5229         b.append("Intent { ");
   5230         toShortString(b, true, true);
   5231         b.append(" }");
   5232 
   5233         return b.toString();
   5234     }
   5235 
   5236     /** @hide */
   5237     public String toShortString(boolean comp, boolean extras) {
   5238         StringBuilder   b = new StringBuilder(128);
   5239         toShortString(b, comp, extras);
   5240         return b.toString();
   5241     }
   5242 
   5243     /** @hide */
   5244     public void toShortString(StringBuilder b, boolean comp, boolean extras) {
   5245         boolean first = true;
   5246         if (mAction != null) {
   5247             b.append("act=").append(mAction);
   5248             first = false;
   5249         }
   5250         if (mCategories != null) {
   5251             if (!first) {
   5252                 b.append(' ');
   5253             }
   5254             first = false;
   5255             b.append("cat=[");
   5256             Iterator<String> i = mCategories.iterator();
   5257             boolean didone = false;
   5258             while (i.hasNext()) {
   5259                 if (didone) b.append(",");
   5260                 didone = true;
   5261                 b.append(i.next());
   5262             }
   5263             b.append("]");
   5264         }
   5265         if (mData != null) {
   5266             if (!first) {
   5267                 b.append(' ');
   5268             }
   5269             first = false;
   5270             b.append("dat=");
   5271             String scheme = mData.getScheme();
   5272             if (scheme != null) {
   5273                 if (scheme.equalsIgnoreCase("tel")) {
   5274                     b.append("tel:xxx-xxx-xxxx");
   5275                 } else if (scheme.equalsIgnoreCase("smsto")) {
   5276                     b.append("smsto:xxx-xxx-xxxx");
   5277                 } else {
   5278                     b.append(mData);
   5279                 }
   5280             } else {
   5281                 b.append(mData);
   5282             }
   5283         }
   5284         if (mType != null) {
   5285             if (!first) {
   5286                 b.append(' ');
   5287             }
   5288             first = false;
   5289             b.append("typ=").append(mType);
   5290         }
   5291         if (mFlags != 0) {
   5292             if (!first) {
   5293                 b.append(' ');
   5294             }
   5295             first = false;
   5296             b.append("flg=0x").append(Integer.toHexString(mFlags));
   5297         }
   5298         if (mPackage != null) {
   5299             if (!first) {
   5300                 b.append(' ');
   5301             }
   5302             first = false;
   5303             b.append("pkg=").append(mPackage);
   5304         }
   5305         if (comp && mComponent != null) {
   5306             if (!first) {
   5307                 b.append(' ');
   5308             }
   5309             first = false;
   5310             b.append("cmp=").append(mComponent.flattenToShortString());
   5311         }
   5312         if (mSourceBounds != null) {
   5313             if (!first) {
   5314                 b.append(' ');
   5315             }
   5316             first = false;
   5317             b.append("bnds=").append(mSourceBounds.toShortString());
   5318         }
   5319         if (extras && mExtras != null) {
   5320             if (!first) {
   5321                 b.append(' ');
   5322             }
   5323             first = false;
   5324             b.append("(has extras)");
   5325         }
   5326     }
   5327 
   5328     /**
   5329      * Call {@link #toUri} with 0 flags.
   5330      * @deprecated Use {@link #toUri} instead.
   5331      */
   5332     @Deprecated
   5333     public String toURI() {
   5334         return toUri(0);
   5335     }
   5336 
   5337     /**
   5338      * Convert this Intent into a String holding a URI representation of it.
   5339      * The returned URI string has been properly URI encoded, so it can be
   5340      * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
   5341      * Intent's data as the base URI, with an additional fragment describing
   5342      * the action, categories, type, flags, package, component, and extras.
   5343      *
   5344      * <p>You can convert the returned string back to an Intent with
   5345      * {@link #getIntent}.
   5346      *
   5347      * @param flags Additional operating flags.  Either 0 or
   5348      * {@link #URI_INTENT_SCHEME}.
   5349      *
   5350      * @return Returns a URI encoding URI string describing the entire contents
   5351      * of the Intent.
   5352      */
   5353     public String toUri(int flags) {
   5354         StringBuilder uri = new StringBuilder(128);
   5355         String scheme = null;
   5356         if (mData != null) {
   5357             String data = mData.toString();
   5358             if ((flags&URI_INTENT_SCHEME) != 0) {
   5359                 final int N = data.length();
   5360                 for (int i=0; i<N; i++) {
   5361                     char c = data.charAt(i);
   5362                     if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
   5363                             || c == '.' || c == '-') {
   5364                         continue;
   5365                     }
   5366                     if (c == ':' && i > 0) {
   5367                         // Valid scheme.
   5368                         scheme = data.substring(0, i);
   5369                         uri.append("intent:");
   5370                         data = data.substring(i+1);
   5371                         break;
   5372                     }
   5373 
   5374                     // No scheme.
   5375                     break;
   5376                 }
   5377             }
   5378             uri.append(data);
   5379 
   5380         } else if ((flags&URI_INTENT_SCHEME) != 0) {
   5381             uri.append("intent:");
   5382         }
   5383 
   5384         uri.append("#Intent;");
   5385 
   5386         if (scheme != null) {
   5387             uri.append("scheme=").append(scheme).append(';');
   5388         }
   5389         if (mAction != null) {
   5390             uri.append("action=").append(Uri.encode(mAction)).append(';');
   5391         }
   5392         if (mCategories != null) {
   5393             for (String category : mCategories) {
   5394                 uri.append("category=").append(Uri.encode(category)).append(';');
   5395             }
   5396         }
   5397         if (mType != null) {
   5398             uri.append("type=").append(Uri.encode(mType, "/")).append(';');
   5399         }
   5400         if (mFlags != 0) {
   5401             uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
   5402         }
   5403         if (mPackage != null) {
   5404             uri.append("package=").append(Uri.encode(mPackage)).append(';');
   5405         }
   5406         if (mComponent != null) {
   5407             uri.append("component=").append(Uri.encode(
   5408                     mComponent.flattenToShortString(), "/")).append(';');
   5409         }
   5410         if (mSourceBounds != null) {
   5411             uri.append("sourceBounds=")
   5412                     .append(Uri.encode(mSourceBounds.flattenToString()))
   5413                     .append(';');
   5414         }
   5415         if (mExtras != null) {
   5416             for (String key : mExtras.keySet()) {
   5417                 final Object value = mExtras.get(key);
   5418                 char entryType =
   5419                         value instanceof String    ? 'S' :
   5420                         value instanceof Boolean   ? 'B' :
   5421                         value instanceof Byte      ? 'b' :
   5422                         value instanceof Character ? 'c' :
   5423                         value instanceof Double    ? 'd' :
   5424                         value instanceof Float     ? 'f' :
   5425                         value instanceof Integer   ? 'i' :
   5426                         value instanceof Long      ? 'l' :
   5427                         value instanceof Short     ? 's' :
   5428                         '\0';
   5429 
   5430                 if (entryType != '\0') {
   5431                     uri.append(entryType);
   5432                     uri.append('.');
   5433                     uri.append(Uri.encode(key));
   5434                     uri.append('=');
   5435                     uri.append(Uri.encode(value.toString()));
   5436                     uri.append(';');
   5437                 }
   5438             }
   5439         }
   5440 
   5441         uri.append("end");
   5442 
   5443         return uri.toString();
   5444     }
   5445 
   5446     public int describeContents() {
   5447         return (mExtras != null) ? mExtras.describeContents() : 0;
   5448     }
   5449 
   5450     public void writeToParcel(Parcel out, int flags) {
   5451         out.writeString(mAction);
   5452         Uri.writeToParcel(out, mData);
   5453         out.writeString(mType);
   5454         out.writeInt(mFlags);
   5455         out.writeString(mPackage);
   5456         ComponentName.writeToParcel(mComponent, out);
   5457 
   5458         if (mSourceBounds != null) {
   5459             out.writeInt(1);
   5460             mSourceBounds.writeToParcel(out, flags);
   5461         } else {
   5462             out.writeInt(0);
   5463         }
   5464 
   5465         if (mCategories != null) {
   5466             out.writeInt(mCategories.size());
   5467             for (String category : mCategories) {
   5468                 out.writeString(category);
   5469             }
   5470         } else {
   5471             out.writeInt(0);
   5472         }
   5473 
   5474         out.writeBundle(mExtras);
   5475     }
   5476 
   5477     public static final Parcelable.Creator<Intent> CREATOR
   5478             = new Parcelable.Creator<Intent>() {
   5479         public Intent createFromParcel(Parcel in) {
   5480             return new Intent(in);
   5481         }
   5482         public Intent[] newArray(int size) {
   5483             return new Intent[size];
   5484         }
   5485     };
   5486 
   5487     /** @hide */
   5488     protected Intent(Parcel in) {
   5489         readFromParcel(in);
   5490     }
   5491 
   5492     public void readFromParcel(Parcel in) {
   5493         mAction = in.readString();
   5494         mData = Uri.CREATOR.createFromParcel(in);
   5495         mType = in.readString();
   5496         mFlags = in.readInt();
   5497         mPackage = in.readString();
   5498         mComponent = ComponentName.readFromParcel(in);
   5499 
   5500         if (in.readInt() != 0) {
   5501             mSourceBounds = Rect.CREATOR.createFromParcel(in);
   5502         }
   5503 
   5504         int N = in.readInt();
   5505         if (N > 0) {
   5506             mCategories = new HashSet<String>();
   5507             int i;
   5508             for (i=0; i<N; i++) {
   5509                 mCategories.add(in.readString());
   5510             }
   5511         } else {
   5512             mCategories = null;
   5513         }
   5514 
   5515         mExtras = in.readBundle();
   5516     }
   5517 
   5518     /**
   5519      * Parses the "intent" element (and its children) from XML and instantiates
   5520      * an Intent object.  The given XML parser should be located at the tag
   5521      * where parsing should start (often named "intent"), from which the
   5522      * basic action, data, type, and package and class name will be
   5523      * retrieved.  The function will then parse in to any child elements,
   5524      * looking for <category android:name="xxx"> tags to add categories and
   5525      * <extra android:name="xxx" android:value="yyy"> to attach extra data
   5526      * to the intent.
   5527      *
   5528      * @param resources The Resources to use when inflating resources.
   5529      * @param parser The XML parser pointing at an "intent" tag.
   5530      * @param attrs The AttributeSet interface for retrieving extended
   5531      * attribute data at the current <var>parser</var> location.
   5532      * @return An Intent object matching the XML data.
   5533      * @throws XmlPullParserException If there was an XML parsing error.
   5534      * @throws IOException If there was an I/O error.
   5535      */
   5536     public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
   5537             throws XmlPullParserException, IOException {
   5538         Intent intent = new Intent();
   5539 
   5540         TypedArray sa = resources.obtainAttributes(attrs,
   5541                 com.android.internal.R.styleable.Intent);
   5542 
   5543         intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
   5544 
   5545         String data = sa.getString(com.android.internal.R.styleable.Intent_data);
   5546         String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
   5547         intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
   5548 
   5549         String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
   5550         String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
   5551         if (packageName != null && className != null) {
   5552             intent.setComponent(new ComponentName(packageName, className));
   5553         }
   5554 
   5555         sa.recycle();
   5556 
   5557         int outerDepth = parser.getDepth();
   5558         int type;
   5559         while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
   5560                && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
   5561             if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
   5562                 continue;
   5563             }
   5564 
   5565             String nodeName = parser.getName();
   5566             if (nodeName.equals("category")) {
   5567                 sa = resources.obtainAttributes(attrs,
   5568                         com.android.internal.R.styleable.IntentCategory);
   5569                 String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
   5570                 sa.recycle();
   5571 
   5572                 if (cat != null) {
   5573                     intent.addCategory(cat);
   5574                 }
   5575                 XmlUtils.skipCurrentTag(parser);
   5576 
   5577             } else if (nodeName.equals("extra")) {
   5578                 if (intent.mExtras == null) {
   5579                     intent.mExtras = new Bundle();
   5580                 }
   5581                 resources.parseBundleExtra("extra", attrs, intent.mExtras);
   5582                 XmlUtils.skipCurrentTag(parser);
   5583 
   5584             } else {
   5585                 XmlUtils.skipCurrentTag(parser);
   5586             }
   5587         }
   5588 
   5589         return intent;
   5590     }
   5591 }
   5592