Intent.java revision 004a4b20f8d3116e6a711525960d433fcfea4ee4
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
17package android.content;
18
19import android.content.pm.ApplicationInfo;
20import android.provider.MediaStore;
21import android.util.ArraySet;
22
23import org.xmlpull.v1.XmlPullParser;
24import org.xmlpull.v1.XmlPullParserException;
25
26import android.annotation.IntDef;
27import android.annotation.SdkConstant;
28import android.annotation.SystemApi;
29import android.annotation.SdkConstant.SdkConstantType;
30import android.content.pm.ActivityInfo;
31
32import static android.content.ContentProvider.maybeAddUserId;
33
34import android.content.pm.PackageManager;
35import android.content.pm.ResolveInfo;
36import android.content.res.Resources;
37import android.content.res.TypedArray;
38import android.graphics.Rect;
39import android.net.Uri;
40import android.os.Bundle;
41import android.os.IBinder;
42import android.os.Parcel;
43import android.os.Parcelable;
44import android.os.StrictMode;
45import android.os.UserHandle;
46import android.provider.DocumentsContract;
47import android.provider.DocumentsProvider;
48import android.provider.OpenableColumns;
49import android.util.AttributeSet;
50import android.util.Log;
51
52import com.android.internal.util.XmlUtils;
53
54import org.xmlpull.v1.XmlSerializer;
55
56import java.io.IOException;
57import java.io.Serializable;
58import java.lang.annotation.Retention;
59import java.lang.annotation.RetentionPolicy;
60import java.net.URISyntaxException;
61import java.util.ArrayList;
62import java.util.List;
63import java.util.Locale;
64import java.util.Objects;
65import java.util.Set;
66
67/**
68 * An intent is an abstract description of an operation to be performed.  It
69 * can be used with {@link Context#startActivity(Intent) startActivity} to
70 * launch an {@link android.app.Activity},
71 * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
72 * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
73 * and {@link android.content.Context#startService} or
74 * {@link android.content.Context#bindService} to communicate with a
75 * background {@link android.app.Service}.
76 *
77 * <p>An Intent provides a facility for performing late runtime binding between the code in
78 * different applications. Its most significant use is in the launching of activities, where it
79 * can be thought of as the glue between activities. It is basically a passive data structure
80 * holding an abstract description of an action to be performed.</p>
81 *
82 * <div class="special reference">
83 * <h3>Developer Guides</h3>
84 * <p>For information about how to create and resolve intents, read the
85 * <a href="{@docRoot}guide/topics/intents/intents-filters.html">Intents and Intent Filters</a>
86 * developer guide.</p>
87 * </div>
88 *
89 * <a name="IntentStructure"></a>
90 * <h3>Intent Structure</h3>
91 * <p>The primary pieces of information in an intent are:</p>
92 *
93 * <ul>
94 *   <li> <p><b>action</b> -- The general action to be performed, such as
95 *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
96 *     etc.</p>
97 *   </li>
98 *   <li> <p><b>data</b> -- The data to operate on, such as a person record
99 *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
100 *   </li>
101 * </ul>
102 *
103 *
104 * <p>Some examples of action/data pairs are:</p>
105 *
106 * <ul>
107 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
108 *     information about the person whose identifier is "1".</p>
109 *   </li>
110 *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
111 *     the phone dialer with the person filled in.</p>
112 *   </li>
113 *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
114 *     the phone dialer with the given number filled in.  Note how the
115 *     VIEW action does what what is considered the most reasonable thing for
116 *     a particular URI.</p>
117 *   </li>
118 *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
119 *     the phone dialer with the given number filled in.</p>
120 *   </li>
121 *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
122 *     information about the person whose identifier is "1".</p>
123 *   </li>
124 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
125 *     a list of people, which the user can browse through.  This example is a
126 *     typical top-level entry into the Contacts application, showing you the
127 *     list of people. Selecting a particular person to view would result in a
128 *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
129 *     being used to start an activity to display that person.</p>
130 *   </li>
131 * </ul>
132 *
133 * <p>In addition to these primary attributes, there are a number of secondary
134 * attributes that you can also include with an intent:</p>
135 *
136 * <ul>
137 *     <li> <p><b>category</b> -- Gives additional information about the action
138 *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
139 *         appear in the Launcher as a top-level application, while
140 *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
141 *         of alternative actions the user can perform on a piece of data.</p>
142 *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
143 *         intent data.  Normally the type is inferred from the data itself.
144 *         By setting this attribute, you disable that evaluation and force
145 *         an explicit type.</p>
146 *     <li> <p><b>component</b> -- Specifies an explicit name of a component
147 *         class to use for the intent.  Normally this is determined by looking
148 *         at the other information in the intent (the action, data/type, and
149 *         categories) and matching that with a component that can handle it.
150 *         If this attribute is set then none of the evaluation is performed,
151 *         and this component is used exactly as is.  By specifying this attribute,
152 *         all of the other Intent attributes become optional.</p>
153 *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
154 *         This can be used to provide extended information to the component.
155 *         For example, if we have a action to send an e-mail message, we could
156 *         also include extra pieces of data here to supply a subject, body,
157 *         etc.</p>
158 * </ul>
159 *
160 * <p>Here are some examples of other operations you can specify as intents
161 * using these additional parameters:</p>
162 *
163 * <ul>
164 *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
165 *     Launch the home screen.</p>
166 *   </li>
167 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
168 *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
169 *     vnd.android.cursor.item/phone}</i></b>
170 *     -- Display the list of people's phone numbers, allowing the user to
171 *     browse through them and pick one and return it to the parent activity.</p>
172 *   </li>
173 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
174 *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
175 *     -- Display all pickers for data that can be opened with
176 *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
177 *     allowing the user to pick one of them and then some data inside of it
178 *     and returning the resulting URI to the caller.  This can be used,
179 *     for example, in an e-mail application to allow the user to pick some
180 *     data to include as an attachment.</p>
181 *   </li>
182 * </ul>
183 *
184 * <p>There are a variety of standard Intent action and category constants
185 * defined in the Intent class, but applications can also define their own.
186 * These strings use java style scoping, to ensure they are unique -- for
187 * example, the standard {@link #ACTION_VIEW} is called
188 * "android.intent.action.VIEW".</p>
189 *
190 * <p>Put together, the set of actions, data types, categories, and extra data
191 * defines a language for the system allowing for the expression of phrases
192 * such as "call john smith's cell".  As applications are added to the system,
193 * they can extend this language by adding new actions, types, and categories, or
194 * they can modify the behavior of existing phrases by supplying their own
195 * activities that handle them.</p>
196 *
197 * <a name="IntentResolution"></a>
198 * <h3>Intent Resolution</h3>
199 *
200 * <p>There are two primary forms of intents you will use.
201 *
202 * <ul>
203 *     <li> <p><b>Explicit Intents</b> have specified a component (via
204 *     {@link #setComponent} or {@link #setClass}), which provides the exact
205 *     class to be run.  Often these will not include any other information,
206 *     simply being a way for an application to launch various internal
207 *     activities it has as the user interacts with the application.
208 *
209 *     <li> <p><b>Implicit Intents</b> have not specified a component;
210 *     instead, they must include enough information for the system to
211 *     determine which of the available components is best to run for that
212 *     intent.
213 * </ul>
214 *
215 * <p>When using implicit intents, given such an arbitrary intent we need to
216 * know what to do with it. This is handled by the process of <em>Intent
217 * resolution</em>, which maps an Intent to an {@link android.app.Activity},
218 * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
219 * more activities/receivers) that can handle it.</p>
220 *
221 * <p>The intent resolution mechanism basically revolves around matching an
222 * Intent against all of the &lt;intent-filter&gt; descriptions in the
223 * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
224 * objects explicitly registered with {@link Context#registerReceiver}.)  More
225 * details on this can be found in the documentation on the {@link
226 * IntentFilter} class.</p>
227 *
228 * <p>There are three pieces of information in the Intent that are used for
229 * resolution: the action, type, and category.  Using this information, a query
230 * is done on the {@link PackageManager} for a component that can handle the
231 * intent. The appropriate component is determined based on the intent
232 * information supplied in the <code>AndroidManifest.xml</code> file as
233 * follows:</p>
234 *
235 * <ul>
236 *     <li> <p>The <b>action</b>, if given, must be listed by the component as
237 *         one it handles.</p>
238 *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
239 *         already supplied in the Intent.  Like the action, if a type is
240 *         included in the intent (either explicitly or implicitly in its
241 *         data), then this must be listed by the component as one it handles.</p>
242 *     <li> For data that is not a <code>content:</code> URI and where no explicit
243 *         type is included in the Intent, instead the <b>scheme</b> of the
244 *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
245 *         considered. Again like the action, if we are matching a scheme it
246 *         must be listed by the component as one it can handle.
247 *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
248 *         by the activity as categories it handles.  That is, if you include
249 *         the categories {@link #CATEGORY_LAUNCHER} and
250 *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
251 *         with an intent that lists <em>both</em> of those categories.
252 *         Activities will very often need to support the
253 *         {@link #CATEGORY_DEFAULT} so that they can be found by
254 *         {@link Context#startActivity Context.startActivity()}.</p>
255 * </ul>
256 *
257 * <p>For example, consider the Note Pad sample application that
258 * allows user to browse through a list of notes data and view details about
259 * individual items.  Text in italics indicate places were you would replace a
260 * name with one specific to your own package.</p>
261 *
262 * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
263 *       package="<i>com.android.notepad</i>"&gt;
264 *     &lt;application android:icon="@drawable/app_notes"
265 *             android:label="@string/app_name"&gt;
266 *
267 *         &lt;provider class=".NotePadProvider"
268 *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
269 *
270 *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
271 *             &lt;intent-filter&gt;
272 *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
273 *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
274 *             &lt;/intent-filter&gt;
275 *             &lt;intent-filter&gt;
276 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
277 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
278 *                 &lt;action android:name="android.intent.action.PICK" /&gt;
279 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
280 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
281 *             &lt;/intent-filter&gt;
282 *             &lt;intent-filter&gt;
283 *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
284 *                 &lt;category android:name="android.intent.category.DEFAULT" /&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;activity class=".NoteEditor" android:label="@string/title_note"&gt;
290 *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
291 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
292 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
293 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
294 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
295 *             &lt;/intent-filter&gt;
296 *
297 *             &lt;intent-filter&gt;
298 *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
299 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
300 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
301 *             &lt;/intent-filter&gt;
302 *
303 *         &lt;/activity&gt;
304 *
305 *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
306 *                 android:theme="@android:style/Theme.Dialog"&gt;
307 *             &lt;intent-filter android:label="@string/resolve_title"&gt;
308 *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
309 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
310 *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
311 *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
312 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
313 *             &lt;/intent-filter&gt;
314 *         &lt;/activity&gt;
315 *
316 *     &lt;/application&gt;
317 * &lt;/manifest&gt;</pre>
318 *
319 * <p>The first activity,
320 * <code>com.android.notepad.NotesList</code>, serves as our main
321 * entry into the app.  It can do three things as described by its three intent
322 * templates:
323 * <ol>
324 * <li><pre>
325 * &lt;intent-filter&gt;
326 *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
327 *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
328 * &lt;/intent-filter&gt;</pre>
329 * <p>This provides a top-level entry into the NotePad application: the standard
330 * MAIN action is a main entry point (not requiring any other information in
331 * the Intent), and the LAUNCHER category says that this entry point should be
332 * listed in the application launcher.</p>
333 * <li><pre>
334 * &lt;intent-filter&gt;
335 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
336 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
337 *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
338 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
339 *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
340 * &lt;/intent-filter&gt;</pre>
341 * <p>This declares the things that the activity can do on a directory of
342 * notes.  The type being supported is given with the &lt;type&gt; tag, where
343 * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
344 * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
345 * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
346 * The activity allows the user to view or edit the directory of data (via
347 * the VIEW and EDIT actions), or to pick a particular note and return it
348 * to the caller (via the PICK action).  Note also the DEFAULT category
349 * supplied here: this is <em>required</em> for the
350 * {@link Context#startActivity Context.startActivity} method to resolve your
351 * activity when its component name is not explicitly specified.</p>
352 * <li><pre>
353 * &lt;intent-filter&gt;
354 *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
355 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
356 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
357 * &lt;/intent-filter&gt;</pre>
358 * <p>This filter describes the ability return to the caller a note selected by
359 * the user without needing to know where it came from.  The data type
360 * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
361 * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
362 * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
363 * The GET_CONTENT action is similar to the PICK action, where the activity
364 * will return to its caller a piece of data selected by the user.  Here,
365 * however, the caller specifies the type of data they desire instead of
366 * the type of data the user will be picking from.</p>
367 * </ol>
368 *
369 * <p>Given these capabilities, the following intents will resolve to the
370 * NotesList activity:</p>
371 *
372 * <ul>
373 *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
374 *         activities that can be used as top-level entry points into an
375 *         application.</p>
376 *     <li> <p><b>{ action=android.app.action.MAIN,
377 *         category=android.app.category.LAUNCHER }</b> is the actual intent
378 *         used by the Launcher to populate its top-level list.</p>
379 *     <li> <p><b>{ action=android.intent.action.VIEW
380 *          data=content://com.google.provider.NotePad/notes }</b>
381 *         displays a list of all the notes under
382 *         "content://com.google.provider.NotePad/notes", which
383 *         the user can browse through and see the details on.</p>
384 *     <li> <p><b>{ action=android.app.action.PICK
385 *          data=content://com.google.provider.NotePad/notes }</b>
386 *         provides a list of the notes under
387 *         "content://com.google.provider.NotePad/notes", from which
388 *         the user can pick a note whose data URL is returned back to the caller.</p>
389 *     <li> <p><b>{ action=android.app.action.GET_CONTENT
390 *          type=vnd.android.cursor.item/vnd.google.note }</b>
391 *         is similar to the pick action, but allows the caller to specify the
392 *         kind of data they want back so that the system can find the appropriate
393 *         activity to pick something of that data type.</p>
394 * </ul>
395 *
396 * <p>The second activity,
397 * <code>com.android.notepad.NoteEditor</code>, shows the user a single
398 * note entry and allows them to edit it.  It can do two things as described
399 * by its two intent templates:
400 * <ol>
401 * <li><pre>
402 * &lt;intent-filter android:label="@string/resolve_edit"&gt;
403 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
404 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
405 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
406 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
407 * &lt;/intent-filter&gt;</pre>
408 * <p>The first, primary, purpose of this activity is to let the user interact
409 * with a single note, as decribed by the MIME type
410 * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
411 * either VIEW a note or allow the user to EDIT it.  Again we support the
412 * DEFAULT category to allow the activity to be launched without explicitly
413 * specifying its component.</p>
414 * <li><pre>
415 * &lt;intent-filter&gt;
416 *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
417 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
418 *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
419 * &lt;/intent-filter&gt;</pre>
420 * <p>The secondary use of this activity is to insert a new note entry into
421 * an existing directory of notes.  This is used when the user creates a new
422 * note: the INSERT action is executed on the directory of notes, causing
423 * this activity to run and have the user create the new note data which
424 * it then adds to the content provider.</p>
425 * </ol>
426 *
427 * <p>Given these capabilities, the following intents will resolve to the
428 * NoteEditor activity:</p>
429 *
430 * <ul>
431 *     <li> <p><b>{ action=android.intent.action.VIEW
432 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
433 *         shows the user the content of note <var>{ID}</var>.</p>
434 *     <li> <p><b>{ action=android.app.action.EDIT
435 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
436 *         allows the user to edit the content of note <var>{ID}</var>.</p>
437 *     <li> <p><b>{ action=android.app.action.INSERT
438 *          data=content://com.google.provider.NotePad/notes }</b>
439 *         creates a new, empty note in the notes list at
440 *         "content://com.google.provider.NotePad/notes"
441 *         and allows the user to edit it.  If they keep their changes, the URI
442 *         of the newly created note is returned to the caller.</p>
443 * </ul>
444 *
445 * <p>The last activity,
446 * <code>com.android.notepad.TitleEditor</code>, allows the user to
447 * edit the title of a note.  This could be implemented as a class that the
448 * application directly invokes (by explicitly setting its component in
449 * the Intent), but here we show a way you can publish alternative
450 * operations on existing data:</p>
451 *
452 * <pre>
453 * &lt;intent-filter android:label="@string/resolve_title"&gt;
454 *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
455 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
456 *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
457 *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
458 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
459 * &lt;/intent-filter&gt;</pre>
460 *
461 * <p>In the single intent template here, we
462 * have created our own private action called
463 * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
464 * edit the title of a note.  It must be invoked on a specific note
465 * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
466 * view and edit actions, but here displays and edits the title contained
467 * in the note data.
468 *
469 * <p>In addition to supporting the default category as usual, our title editor
470 * also supports two other standard categories: ALTERNATIVE and
471 * SELECTED_ALTERNATIVE.  Implementing
472 * these categories allows others to find the special action it provides
473 * without directly knowing about it, through the
474 * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
475 * more often to build dynamic menu items with
476 * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
477 * template here was also supply an explicit name for the template
478 * (via <code>android:label="@string/resolve_title"</code>) to better control
479 * what the user sees when presented with this activity as an alternative
480 * action to the data they are viewing.
481 *
482 * <p>Given these capabilities, the following intent will resolve to the
483 * TitleEditor activity:</p>
484 *
485 * <ul>
486 *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
487 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
488 *         displays and allows the user to edit the title associated
489 *         with note <var>{ID}</var>.</p>
490 * </ul>
491 *
492 * <h3>Standard Activity Actions</h3>
493 *
494 * <p>These are the current standard actions that Intent defines for launching
495 * activities (usually through {@link Context#startActivity}.  The most
496 * important, and by far most frequently used, are {@link #ACTION_MAIN} and
497 * {@link #ACTION_EDIT}.
498 *
499 * <ul>
500 *     <li> {@link #ACTION_MAIN}
501 *     <li> {@link #ACTION_VIEW}
502 *     <li> {@link #ACTION_ATTACH_DATA}
503 *     <li> {@link #ACTION_EDIT}
504 *     <li> {@link #ACTION_PICK}
505 *     <li> {@link #ACTION_CHOOSER}
506 *     <li> {@link #ACTION_GET_CONTENT}
507 *     <li> {@link #ACTION_DIAL}
508 *     <li> {@link #ACTION_CALL}
509 *     <li> {@link #ACTION_SEND}
510 *     <li> {@link #ACTION_SENDTO}
511 *     <li> {@link #ACTION_ANSWER}
512 *     <li> {@link #ACTION_INSERT}
513 *     <li> {@link #ACTION_DELETE}
514 *     <li> {@link #ACTION_RUN}
515 *     <li> {@link #ACTION_SYNC}
516 *     <li> {@link #ACTION_PICK_ACTIVITY}
517 *     <li> {@link #ACTION_SEARCH}
518 *     <li> {@link #ACTION_WEB_SEARCH}
519 *     <li> {@link #ACTION_FACTORY_TEST}
520 * </ul>
521 *
522 * <h3>Standard Broadcast Actions</h3>
523 *
524 * <p>These are the current standard actions that Intent defines for receiving
525 * broadcasts (usually through {@link Context#registerReceiver} or a
526 * &lt;receiver&gt; tag in a manifest).
527 *
528 * <ul>
529 *     <li> {@link #ACTION_TIME_TICK}
530 *     <li> {@link #ACTION_TIME_CHANGED}
531 *     <li> {@link #ACTION_TIMEZONE_CHANGED}
532 *     <li> {@link #ACTION_BOOT_COMPLETED}
533 *     <li> {@link #ACTION_PACKAGE_ADDED}
534 *     <li> {@link #ACTION_PACKAGE_CHANGED}
535 *     <li> {@link #ACTION_PACKAGE_REMOVED}
536 *     <li> {@link #ACTION_PACKAGE_RESTARTED}
537 *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
538 *     <li> {@link #ACTION_UID_REMOVED}
539 *     <li> {@link #ACTION_BATTERY_CHANGED}
540 *     <li> {@link #ACTION_POWER_CONNECTED}
541 *     <li> {@link #ACTION_POWER_DISCONNECTED}
542 *     <li> {@link #ACTION_SHUTDOWN}
543 * </ul>
544 *
545 * <h3>Standard Categories</h3>
546 *
547 * <p>These are the current standard categories that can be used to further
548 * clarify an Intent via {@link #addCategory}.
549 *
550 * <ul>
551 *     <li> {@link #CATEGORY_DEFAULT}
552 *     <li> {@link #CATEGORY_BROWSABLE}
553 *     <li> {@link #CATEGORY_TAB}
554 *     <li> {@link #CATEGORY_ALTERNATIVE}
555 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
556 *     <li> {@link #CATEGORY_LAUNCHER}
557 *     <li> {@link #CATEGORY_INFO}
558 *     <li> {@link #CATEGORY_HOME}
559 *     <li> {@link #CATEGORY_PREFERENCE}
560 *     <li> {@link #CATEGORY_TEST}
561 *     <li> {@link #CATEGORY_CAR_DOCK}
562 *     <li> {@link #CATEGORY_DESK_DOCK}
563 *     <li> {@link #CATEGORY_LE_DESK_DOCK}
564 *     <li> {@link #CATEGORY_HE_DESK_DOCK}
565 *     <li> {@link #CATEGORY_CAR_MODE}
566 *     <li> {@link #CATEGORY_APP_MARKET}
567 * </ul>
568 *
569 * <h3>Standard Extra Data</h3>
570 *
571 * <p>These are the current standard fields that can be used as extra data via
572 * {@link #putExtra}.
573 *
574 * <ul>
575 *     <li> {@link #EXTRA_ALARM_COUNT}
576 *     <li> {@link #EXTRA_BCC}
577 *     <li> {@link #EXTRA_CC}
578 *     <li> {@link #EXTRA_CHANGED_COMPONENT_NAME}
579 *     <li> {@link #EXTRA_DATA_REMOVED}
580 *     <li> {@link #EXTRA_DOCK_STATE}
581 *     <li> {@link #EXTRA_DOCK_STATE_HE_DESK}
582 *     <li> {@link #EXTRA_DOCK_STATE_LE_DESK}
583 *     <li> {@link #EXTRA_DOCK_STATE_CAR}
584 *     <li> {@link #EXTRA_DOCK_STATE_DESK}
585 *     <li> {@link #EXTRA_DOCK_STATE_UNDOCKED}
586 *     <li> {@link #EXTRA_DONT_KILL_APP}
587 *     <li> {@link #EXTRA_EMAIL}
588 *     <li> {@link #EXTRA_INITIAL_INTENTS}
589 *     <li> {@link #EXTRA_INTENT}
590 *     <li> {@link #EXTRA_KEY_EVENT}
591 *     <li> {@link #EXTRA_ORIGINATING_URI}
592 *     <li> {@link #EXTRA_PHONE_NUMBER}
593 *     <li> {@link #EXTRA_REFERRER}
594 *     <li> {@link #EXTRA_REMOTE_INTENT_TOKEN}
595 *     <li> {@link #EXTRA_REPLACING}
596 *     <li> {@link #EXTRA_SHORTCUT_ICON}
597 *     <li> {@link #EXTRA_SHORTCUT_ICON_RESOURCE}
598 *     <li> {@link #EXTRA_SHORTCUT_INTENT}
599 *     <li> {@link #EXTRA_STREAM}
600 *     <li> {@link #EXTRA_SHORTCUT_NAME}
601 *     <li> {@link #EXTRA_SUBJECT}
602 *     <li> {@link #EXTRA_TEMPLATE}
603 *     <li> {@link #EXTRA_TEXT}
604 *     <li> {@link #EXTRA_TITLE}
605 *     <li> {@link #EXTRA_UID}
606 * </ul>
607 *
608 * <h3>Flags</h3>
609 *
610 * <p>These are the possible flags that can be used in the Intent via
611 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
612 * of all possible flags.
613 */
614public class Intent implements Parcelable, Cloneable {
615    private static final String ATTR_ACTION = "action";
616    private static final String TAG_CATEGORIES = "categories";
617    private static final String ATTR_CATEGORY = "category";
618    private static final String TAG_EXTRA = "extra";
619    private static final String ATTR_TYPE = "type";
620    private static final String ATTR_COMPONENT = "component";
621    private static final String ATTR_DATA = "data";
622    private static final String ATTR_FLAGS = "flags";
623
624    // ---------------------------------------------------------------------
625    // ---------------------------------------------------------------------
626    // Standard intent activity actions (see action variable).
627
628    /**
629     *  Activity Action: Start as a main entry point, does not expect to
630     *  receive data.
631     *  <p>Input: nothing
632     *  <p>Output: nothing
633     */
634    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
635    public static final String ACTION_MAIN = "android.intent.action.MAIN";
636
637    /**
638     * Activity Action: Display the data to the user.  This is the most common
639     * action performed on data -- it is the generic action you can use on
640     * a piece of data to get the most reasonable thing to occur.  For example,
641     * when used on a contacts entry it will view the entry; when used on a
642     * mailto: URI it will bring up a compose window filled with the information
643     * supplied by the URI; when used with a tel: URI it will invoke the
644     * dialer.
645     * <p>Input: {@link #getData} is URI from which to retrieve data.
646     * <p>Output: nothing.
647     */
648    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
649    public static final String ACTION_VIEW = "android.intent.action.VIEW";
650
651    /**
652     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
653     * performed on a piece of data.
654     */
655    public static final String ACTION_DEFAULT = ACTION_VIEW;
656
657    /**
658     * Used to indicate that some piece of data should be attached to some other
659     * place.  For example, image data could be attached to a contact.  It is up
660     * to the recipient to decide where the data should be attached; the intent
661     * does not specify the ultimate destination.
662     * <p>Input: {@link #getData} is URI of data to be attached.
663     * <p>Output: nothing.
664     */
665    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
666    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
667
668    /**
669     * Activity Action: Provide explicit editable access to the given data.
670     * <p>Input: {@link #getData} is URI of data to be edited.
671     * <p>Output: nothing.
672     */
673    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
674    public static final String ACTION_EDIT = "android.intent.action.EDIT";
675
676    /**
677     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
678     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
679     * The extras can contain type specific data to pass through to the editing/creating
680     * activity.
681     * <p>Output: The URI of the item that was picked.  This must be a content:
682     * URI so that any receiver can access it.
683     */
684    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
685    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
686
687    /**
688     * Activity Action: Pick an item from the data, returning what was selected.
689     * <p>Input: {@link #getData} is URI containing a directory of data
690     * (vnd.android.cursor.dir/*) from which to pick an item.
691     * <p>Output: The URI of the item that was picked.
692     */
693    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
694    public static final String ACTION_PICK = "android.intent.action.PICK";
695
696    /**
697     * Activity Action: Creates a shortcut.
698     * <p>Input: Nothing.</p>
699     * <p>Output: An Intent representing the shortcut. The intent must contain three
700     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
701     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
702     * (value: ShortcutIconResource).</p>
703     *
704     * @see #EXTRA_SHORTCUT_INTENT
705     * @see #EXTRA_SHORTCUT_NAME
706     * @see #EXTRA_SHORTCUT_ICON
707     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
708     * @see android.content.Intent.ShortcutIconResource
709     */
710    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
711    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
712
713    /**
714     * The name of the extra used to define the Intent of a shortcut.
715     *
716     * @see #ACTION_CREATE_SHORTCUT
717     */
718    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
719    /**
720     * The name of the extra used to define the name of a shortcut.
721     *
722     * @see #ACTION_CREATE_SHORTCUT
723     */
724    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
725    /**
726     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
727     *
728     * @see #ACTION_CREATE_SHORTCUT
729     */
730    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
731    /**
732     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
733     *
734     * @see #ACTION_CREATE_SHORTCUT
735     * @see android.content.Intent.ShortcutIconResource
736     */
737    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
738            "android.intent.extra.shortcut.ICON_RESOURCE";
739
740    /**
741     * Represents a shortcut/live folder icon resource.
742     *
743     * @see Intent#ACTION_CREATE_SHORTCUT
744     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
745     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
746     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
747     */
748    public static class ShortcutIconResource implements Parcelable {
749        /**
750         * The package name of the application containing the icon.
751         */
752        public String packageName;
753
754        /**
755         * The resource name of the icon, including package, name and type.
756         */
757        public String resourceName;
758
759        /**
760         * Creates a new ShortcutIconResource for the specified context and resource
761         * identifier.
762         *
763         * @param context The context of the application.
764         * @param resourceId The resource idenfitier for the icon.
765         * @return A new ShortcutIconResource with the specified's context package name
766         *         and icon resource idenfitier.
767         */
768        public static ShortcutIconResource fromContext(Context context, int resourceId) {
769            ShortcutIconResource icon = new ShortcutIconResource();
770            icon.packageName = context.getPackageName();
771            icon.resourceName = context.getResources().getResourceName(resourceId);
772            return icon;
773        }
774
775        /**
776         * Used to read a ShortcutIconResource from a Parcel.
777         */
778        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
779            new Parcelable.Creator<ShortcutIconResource>() {
780
781                public ShortcutIconResource createFromParcel(Parcel source) {
782                    ShortcutIconResource icon = new ShortcutIconResource();
783                    icon.packageName = source.readString();
784                    icon.resourceName = source.readString();
785                    return icon;
786                }
787
788                public ShortcutIconResource[] newArray(int size) {
789                    return new ShortcutIconResource[size];
790                }
791            };
792
793        /**
794         * No special parcel contents.
795         */
796        public int describeContents() {
797            return 0;
798        }
799
800        public void writeToParcel(Parcel dest, int flags) {
801            dest.writeString(packageName);
802            dest.writeString(resourceName);
803        }
804
805        @Override
806        public String toString() {
807            return resourceName;
808        }
809    }
810
811    /**
812     * Activity Action: Display an activity chooser, allowing the user to pick
813     * what they want to before proceeding.  This can be used as an alternative
814     * to the standard activity picker that is displayed by the system when
815     * you try to start an activity with multiple possible matches, with these
816     * differences in behavior:
817     * <ul>
818     * <li>You can specify the title that will appear in the activity chooser.
819     * <li>The user does not have the option to make one of the matching
820     * activities a preferred activity, and all possible activities will
821     * always be shown even if one of them is currently marked as the
822     * preferred activity.
823     * </ul>
824     * <p>
825     * This action should be used when the user will naturally expect to
826     * select an activity in order to proceed.  An example if when not to use
827     * it is when the user clicks on a "mailto:" link.  They would naturally
828     * expect to go directly to their mail app, so startActivity() should be
829     * called directly: it will
830     * either launch the current preferred app, or put up a dialog allowing the
831     * user to pick an app to use and optionally marking that as preferred.
832     * <p>
833     * In contrast, if the user is selecting a menu item to send a picture
834     * they are viewing to someone else, there are many different things they
835     * may want to do at this point: send it through e-mail, upload it to a
836     * web service, etc.  In this case the CHOOSER action should be used, to
837     * always present to the user a list of the things they can do, with a
838     * nice title given by the caller such as "Send this photo with:".
839     * <p>
840     * If you need to grant URI permissions through a chooser, you must specify
841     * the permissions to be granted on the ACTION_CHOOSER Intent
842     * <em>in addition</em> to the EXTRA_INTENT inside.  This means using
843     * {@link #setClipData} to specify the URIs to be granted as well as
844     * {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or
845     * {@link #FLAG_GRANT_WRITE_URI_PERMISSION} as appropriate.
846     * <p>
847     * As a convenience, an Intent of this form can be created with the
848     * {@link #createChooser} function.
849     * <p>
850     * Input: No data should be specified.  get*Extra must have
851     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
852     * and can optionally have a {@link #EXTRA_TITLE} field containing the
853     * title text to display in the chooser.
854     * <p>
855     * Output: Depends on the protocol of {@link #EXTRA_INTENT}.
856     */
857    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
858    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
859
860    /**
861     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
862     *
863     * <p>Builds a new {@link #ACTION_CHOOSER} Intent that wraps the given
864     * target intent, also optionally supplying a title.  If the target
865     * intent has specified {@link #FLAG_GRANT_READ_URI_PERMISSION} or
866     * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, then these flags will also be
867     * set in the returned chooser intent, with its ClipData set appropriately:
868     * either a direct reflection of {@link #getClipData()} if that is non-null,
869     * or a new ClipData built from {@link #getData()}.
870     *
871     * @param target The Intent that the user will be selecting an activity
872     * to perform.
873     * @param title Optional title that will be displayed in the chooser.
874     * @return Return a new Intent object that you can hand to
875     * {@link Context#startActivity(Intent) Context.startActivity()} and
876     * related methods.
877     */
878    public static Intent createChooser(Intent target, CharSequence title) {
879        Intent intent = new Intent(ACTION_CHOOSER);
880        intent.putExtra(EXTRA_INTENT, target);
881        if (title != null) {
882            intent.putExtra(EXTRA_TITLE, title);
883        }
884
885        // Migrate any clip data and flags from target.
886        int permFlags = target.getFlags() & (FLAG_GRANT_READ_URI_PERMISSION
887                | FLAG_GRANT_WRITE_URI_PERMISSION | FLAG_GRANT_PERSISTABLE_URI_PERMISSION
888                | FLAG_GRANT_PREFIX_URI_PERMISSION);
889        if (permFlags != 0) {
890            ClipData targetClipData = target.getClipData();
891            if (targetClipData == null && target.getData() != null) {
892                ClipData.Item item = new ClipData.Item(target.getData());
893                String[] mimeTypes;
894                if (target.getType() != null) {
895                    mimeTypes = new String[] { target.getType() };
896                } else {
897                    mimeTypes = new String[] { };
898                }
899                targetClipData = new ClipData(null, mimeTypes, item);
900            }
901            if (targetClipData != null) {
902                intent.setClipData(targetClipData);
903                intent.addFlags(permFlags);
904            }
905        }
906
907        return intent;
908    }
909
910    /**
911     * Activity Action: Allow the user to select a particular kind of data and
912     * return it.  This is different than {@link #ACTION_PICK} in that here we
913     * just say what kind of data is desired, not a URI of existing data from
914     * which the user can pick.  An ACTION_GET_CONTENT could allow the user to
915     * create the data as it runs (for example taking a picture or recording a
916     * sound), let them browse over the web and download the desired data,
917     * etc.
918     * <p>
919     * There are two main ways to use this action: if you want a specific kind
920     * of data, such as a person contact, you set the MIME type to the kind of
921     * data you want and launch it with {@link Context#startActivity(Intent)}.
922     * The system will then launch the best application to select that kind
923     * of data for you.
924     * <p>
925     * You may also be interested in any of a set of types of content the user
926     * can pick.  For example, an e-mail application that wants to allow the
927     * user to add an attachment to an e-mail message can use this action to
928     * bring up a list of all of the types of content the user can attach.
929     * <p>
930     * In this case, you should wrap the GET_CONTENT intent with a chooser
931     * (through {@link #createChooser}), which will give the proper interface
932     * for the user to pick how to send your data and allow you to specify
933     * a prompt indicating what they are doing.  You will usually specify a
934     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
935     * broad range of content types the user can select from.
936     * <p>
937     * When using such a broad GET_CONTENT action, it is often desirable to
938     * only pick from data that can be represented as a stream.  This is
939     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
940     * <p>
941     * Callers can optionally specify {@link #EXTRA_LOCAL_ONLY} to request that
942     * the launched content chooser only returns results representing data that
943     * is locally available on the device.  For example, if this extra is set
944     * to true then an image picker should not show any pictures that are available
945     * from a remote server but not already on the local device (thus requiring
946     * they be downloaded when opened).
947     * <p>
948     * If the caller can handle multiple returned items (the user performing
949     * multiple selection), then it can specify {@link #EXTRA_ALLOW_MULTIPLE}
950     * to indicate this.
951     * <p>
952     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
953     * that no URI is supplied in the intent, as there are no constraints on
954     * where the returned data originally comes from.  You may also include the
955     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
956     * opened as a stream.  You may use {@link #EXTRA_LOCAL_ONLY} to limit content
957     * selection to local data.  You may use {@link #EXTRA_ALLOW_MULTIPLE} to
958     * allow the user to select multiple items.
959     * <p>
960     * Output: The URI of the item that was picked.  This must be a content:
961     * URI so that any receiver can access it.
962     */
963    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
964    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
965    /**
966     * Activity Action: Dial a number as specified by the data.  This shows a
967     * UI with the number being dialed, allowing the user to explicitly
968     * initiate the call.
969     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
970     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
971     * number.
972     * <p>Output: nothing.
973     */
974    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
975    public static final String ACTION_DIAL = "android.intent.action.DIAL";
976    /**
977     * Activity Action: Perform a call to someone specified by the data.
978     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
979     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
980     * number.
981     * <p>Output: nothing.
982     *
983     * <p>Note: there will be restrictions on which applications can initiate a
984     * call; most applications should use the {@link #ACTION_DIAL}.
985     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
986     * numbers.  Applications can <strong>dial</strong> emergency numbers using
987     * {@link #ACTION_DIAL}, however.
988     */
989    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
990    public static final String ACTION_CALL = "android.intent.action.CALL";
991    /**
992     * Activity Action: Perform a call to an emergency number specified by the
993     * data.
994     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
995     * tel: URI of an explicit phone number.
996     * <p>Output: nothing.
997     * @hide
998     */
999    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
1000    /**
1001     * Activity action: Perform a call to any number (emergency or not)
1002     * specified by the data.
1003     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
1004     * tel: URI of an explicit phone number.
1005     * <p>Output: nothing.
1006     * @hide
1007     */
1008    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
1009    /**
1010     * Activity Action: Send a message to someone specified by the data.
1011     * <p>Input: {@link #getData} is URI describing the target.
1012     * <p>Output: nothing.
1013     */
1014    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1015    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
1016    /**
1017     * Activity Action: Deliver some data to someone else.  Who the data is
1018     * being delivered to is not specified; it is up to the receiver of this
1019     * action to ask the user where the data should be sent.
1020     * <p>
1021     * When launching a SEND intent, you should usually wrap it in a chooser
1022     * (through {@link #createChooser}), which will give the proper interface
1023     * for the user to pick how to send your data and allow you to specify
1024     * a prompt indicating what they are doing.
1025     * <p>
1026     * Input: {@link #getType} is the MIME type of the data being sent.
1027     * get*Extra can have either a {@link #EXTRA_TEXT}
1028     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
1029     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
1030     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
1031     * if the MIME type is unknown (this will only allow senders that can
1032     * handle generic data streams).  If using {@link #EXTRA_TEXT}, you can
1033     * also optionally supply {@link #EXTRA_HTML_TEXT} for clients to retrieve
1034     * your text with HTML formatting.
1035     * <p>
1036     * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data
1037     * being sent can be supplied through {@link #setClipData(ClipData)}.  This
1038     * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing
1039     * content: URIs and other advanced features of {@link ClipData}.  If
1040     * using this approach, you still must supply the same data through the
1041     * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below
1042     * for compatibility with old applications.  If you don't set a ClipData,
1043     * it will be copied there for you when calling {@link Context#startActivity(Intent)}.
1044     * <p>
1045     * Optional standard extras, which may be interpreted by some recipients as
1046     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
1047     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
1048     * <p>
1049     * Output: nothing.
1050     */
1051    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1052    public static final String ACTION_SEND = "android.intent.action.SEND";
1053    /**
1054     * Activity Action: Deliver multiple data to someone else.
1055     * <p>
1056     * Like {@link #ACTION_SEND}, except the data is multiple.
1057     * <p>
1058     * Input: {@link #getType} is the MIME type of the data being sent.
1059     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
1060     * #EXTRA_STREAM} field, containing the data to be sent.  If using
1061     * {@link #EXTRA_TEXT}, you can also optionally supply {@link #EXTRA_HTML_TEXT}
1062     * for clients to retrieve your text with HTML formatting.
1063     * <p>
1064     * Multiple types are supported, and receivers should handle mixed types
1065     * whenever possible. The right way for the receiver to check them is to
1066     * use the content resolver on each URI. The intent sender should try to
1067     * put the most concrete mime type in the intent type, but it can fall
1068     * back to {@literal <type>/*} or {@literal *}/* as needed.
1069     * <p>
1070     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
1071     * be image/jpg, but if you are sending image/jpg and image/png, then the
1072     * intent's type should be image/*.
1073     * <p>
1074     * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data
1075     * being sent can be supplied through {@link #setClipData(ClipData)}.  This
1076     * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing
1077     * content: URIs and other advanced features of {@link ClipData}.  If
1078     * using this approach, you still must supply the same data through the
1079     * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below
1080     * for compatibility with old applications.  If you don't set a ClipData,
1081     * it will be copied there for you when calling {@link Context#startActivity(Intent)}.
1082     * <p>
1083     * Optional standard extras, which may be interpreted by some recipients as
1084     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
1085     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
1086     * <p>
1087     * Output: nothing.
1088     */
1089    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1090    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
1091    /**
1092     * Activity Action: Handle an incoming phone call.
1093     * <p>Input: nothing.
1094     * <p>Output: nothing.
1095     */
1096    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1097    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
1098    /**
1099     * Activity Action: Insert an empty item into the given container.
1100     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
1101     * in which to place the data.
1102     * <p>Output: URI of the new data that was created.
1103     */
1104    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1105    public static final String ACTION_INSERT = "android.intent.action.INSERT";
1106    /**
1107     * Activity Action: Create a new item in the given container, initializing it
1108     * from the current contents of the clipboard.
1109     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
1110     * in which to place the data.
1111     * <p>Output: URI of the new data that was created.
1112     */
1113    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1114    public static final String ACTION_PASTE = "android.intent.action.PASTE";
1115    /**
1116     * Activity Action: Delete the given data from its container.
1117     * <p>Input: {@link #getData} is URI of data to be deleted.
1118     * <p>Output: nothing.
1119     */
1120    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1121    public static final String ACTION_DELETE = "android.intent.action.DELETE";
1122    /**
1123     * Activity Action: Run the data, whatever that means.
1124     * <p>Input: ?  (Note: this is currently specific to the test harness.)
1125     * <p>Output: nothing.
1126     */
1127    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1128    public static final String ACTION_RUN = "android.intent.action.RUN";
1129    /**
1130     * Activity Action: Perform a data synchronization.
1131     * <p>Input: ?
1132     * <p>Output: ?
1133     */
1134    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1135    public static final String ACTION_SYNC = "android.intent.action.SYNC";
1136    /**
1137     * Activity Action: Pick an activity given an intent, returning the class
1138     * selected.
1139     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
1140     * used with {@link PackageManager#queryIntentActivities} to determine the
1141     * set of activities from which to pick.
1142     * <p>Output: Class name of the activity that was selected.
1143     */
1144    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1145    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
1146    /**
1147     * Activity Action: Perform a search.
1148     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1149     * is the text to search for.  If empty, simply
1150     * enter your search results Activity with the search UI activated.
1151     * <p>Output: nothing.
1152     */
1153    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1154    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1155    /**
1156     * Activity Action: Start the platform-defined tutorial
1157     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1158     * is the text to search for.  If empty, simply
1159     * enter your search results Activity with the search UI activated.
1160     * <p>Output: nothing.
1161     */
1162    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1163    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1164    /**
1165     * Activity Action: Perform a web search.
1166     * <p>
1167     * Input: {@link android.app.SearchManager#QUERY
1168     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1169     * a url starts with http or https, the site will be opened. If it is plain
1170     * text, Google search will be applied.
1171     * <p>
1172     * Output: nothing.
1173     */
1174    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1175    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1176
1177    /**
1178     * Activity Action: Perform assist action.
1179     * <p>
1180     * Input: {@link #EXTRA_ASSIST_PACKAGE}, {@link #EXTRA_ASSIST_CONTEXT}, can provide
1181     * additional optional contextual information about where the user was when they
1182     * requested the assist.
1183     * Output: nothing.
1184     */
1185    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1186    public static final String ACTION_ASSIST = "android.intent.action.ASSIST";
1187
1188    /**
1189     * Activity Action: Perform voice assist action.
1190     * <p>
1191     * Input: {@link #EXTRA_ASSIST_PACKAGE}, {@link #EXTRA_ASSIST_CONTEXT}, can provide
1192     * additional optional contextual information about where the user was when they
1193     * requested the voice assist.
1194     * Output: nothing.
1195     * @hide
1196     */
1197    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1198    public static final String ACTION_VOICE_ASSIST = "android.intent.action.VOICE_ASSIST";
1199
1200    /**
1201     * An optional field on {@link #ACTION_ASSIST} containing the name of the current foreground
1202     * application package at the time the assist was invoked.
1203     */
1204    public static final String EXTRA_ASSIST_PACKAGE
1205            = "android.intent.extra.ASSIST_PACKAGE";
1206
1207    /**
1208     * An optional field on {@link #ACTION_ASSIST} and containing additional contextual
1209     * information supplied by the current foreground app at the time of the assist request.
1210     * This is a {@link Bundle} of additional data.
1211     */
1212    public static final String EXTRA_ASSIST_CONTEXT
1213            = "android.intent.extra.ASSIST_CONTEXT";
1214
1215    /**
1216     * An optional field on {@link #ACTION_ASSIST} suggesting that the user will likely use a
1217     * keyboard as the primary input device for assistance.
1218     */
1219    public static final String EXTRA_ASSIST_INPUT_HINT_KEYBOARD =
1220            "android.intent.extra.ASSIST_INPUT_HINT_KEYBOARD";
1221
1222    /**
1223     * Activity Action: List all available applications
1224     * <p>Input: Nothing.
1225     * <p>Output: nothing.
1226     */
1227    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1228    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1229    /**
1230     * Activity Action: Show settings for choosing wallpaper
1231     * <p>Input: Nothing.
1232     * <p>Output: Nothing.
1233     */
1234    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1235    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1236
1237    /**
1238     * Activity Action: Show activity for reporting a bug.
1239     * <p>Input: Nothing.
1240     * <p>Output: Nothing.
1241     */
1242    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1243    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1244
1245    /**
1246     *  Activity Action: Main entry point for factory tests.  Only used when
1247     *  the device is booting in factory test node.  The implementing package
1248     *  must be installed in the system image.
1249     *  <p>Input: nothing
1250     *  <p>Output: nothing
1251     */
1252    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1253
1254    /**
1255     * Activity Action: The user pressed the "call" button to go to the dialer
1256     * or other appropriate UI for placing a call.
1257     * <p>Input: Nothing.
1258     * <p>Output: Nothing.
1259     */
1260    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1261    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1262
1263    /**
1264     * Activity Action: Start Voice Command.
1265     * <p>Input: Nothing.
1266     * <p>Output: Nothing.
1267     */
1268    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1269    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1270
1271    /**
1272     * Activity Action: Start action associated with long pressing on the
1273     * search key.
1274     * <p>Input: Nothing.
1275     * <p>Output: Nothing.
1276     */
1277    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1278    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1279
1280    /**
1281     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1282     * This intent is delivered to the package which installed the application, usually
1283     * Google Play.
1284     * <p>Input: No data is specified. The bug report is passed in using
1285     * an {@link #EXTRA_BUG_REPORT} field.
1286     * <p>Output: Nothing.
1287     *
1288     * @see #EXTRA_BUG_REPORT
1289     */
1290    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1291    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1292
1293    /**
1294     * Activity Action: Show power usage information to the user.
1295     * <p>Input: Nothing.
1296     * <p>Output: Nothing.
1297     */
1298    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1299    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1300
1301    /**
1302     * Activity Action: Setup wizard to launch after a platform update.  This
1303     * activity should have a string meta-data field associated with it,
1304     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1305     * the platform for setup.  The activity will be launched only if
1306     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1307     * same value.
1308     * <p>Input: Nothing.
1309     * <p>Output: Nothing.
1310     * @hide
1311     */
1312    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1313    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1314
1315    /**
1316     * Activity Action: Show settings for managing network data usage of a
1317     * specific application. Applications should define an activity that offers
1318     * options to control data usage.
1319     */
1320    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1321    public static final String ACTION_MANAGE_NETWORK_USAGE =
1322            "android.intent.action.MANAGE_NETWORK_USAGE";
1323
1324    /**
1325     * Activity Action: Launch application installer.
1326     * <p>
1327     * Input: The data must be a content: or file: URI at which the application
1328     * can be retrieved.  As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1},
1329     * you can also use "package:<package-name>" to install an application for the
1330     * current user that is already installed for another user. You can optionally supply
1331     * {@link #EXTRA_INSTALLER_PACKAGE_NAME}, {@link #EXTRA_NOT_UNKNOWN_SOURCE},
1332     * {@link #EXTRA_ALLOW_REPLACE}, and {@link #EXTRA_RETURN_RESULT}.
1333     * <p>
1334     * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
1335     * succeeded.
1336     *
1337     * @see #EXTRA_INSTALLER_PACKAGE_NAME
1338     * @see #EXTRA_NOT_UNKNOWN_SOURCE
1339     * @see #EXTRA_RETURN_RESULT
1340     */
1341    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1342    public static final String ACTION_INSTALL_PACKAGE = "android.intent.action.INSTALL_PACKAGE";
1343
1344    /**
1345     * Used as a string extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
1346     * package.  Specifies the installer package name; this package will receive the
1347     * {@link #ACTION_APP_ERROR} intent.
1348     */
1349    public static final String EXTRA_INSTALLER_PACKAGE_NAME
1350            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
1351
1352    /**
1353     * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
1354     * package.  Specifies that the application being installed should not be
1355     * treated as coming from an unknown source, but as coming from the app
1356     * invoking the Intent.  For this to work you must start the installer with
1357     * startActivityForResult().
1358     */
1359    public static final String EXTRA_NOT_UNKNOWN_SOURCE
1360            = "android.intent.extra.NOT_UNKNOWN_SOURCE";
1361
1362    /**
1363     * Used as a URI extra field with {@link #ACTION_INSTALL_PACKAGE} and
1364     * {@link #ACTION_VIEW} to indicate the URI from which the local APK in the Intent
1365     * data field originated from.
1366     */
1367    public static final String EXTRA_ORIGINATING_URI
1368            = "android.intent.extra.ORIGINATING_URI";
1369
1370    /**
1371     * Used as a URI extra field with {@link #ACTION_INSTALL_PACKAGE} and
1372     * {@link #ACTION_VIEW} to indicate the HTTP referrer URI associated with the Intent
1373     * data field or {@link #EXTRA_ORIGINATING_URI}.
1374     */
1375    public static final String EXTRA_REFERRER
1376            = "android.intent.extra.REFERRER";
1377
1378    /**
1379     * Used as an int extra field with {@link #ACTION_INSTALL_PACKAGE} and
1380     * {@link} #ACTION_VIEW} to indicate the uid of the package that initiated the install
1381     * @hide
1382     */
1383    public static final String EXTRA_ORIGINATING_UID
1384            = "android.intent.extra.ORIGINATING_UID";
1385
1386    /**
1387     * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
1388     * package.  Tells the installer UI to skip the confirmation with the user
1389     * if the .apk is replacing an existing one.
1390     * @deprecated As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, Android
1391     * will no longer show an interstitial message about updating existing
1392     * applications so this is no longer needed.
1393     */
1394    @Deprecated
1395    public static final String EXTRA_ALLOW_REPLACE
1396            = "android.intent.extra.ALLOW_REPLACE";
1397
1398    /**
1399     * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} or
1400     * {@link #ACTION_UNINSTALL_PACKAGE}.  Specifies that the installer UI should
1401     * return to the application the result code of the install/uninstall.  The returned result
1402     * code will be {@link android.app.Activity#RESULT_OK} on success or
1403     * {@link android.app.Activity#RESULT_FIRST_USER} on failure.
1404     */
1405    public static final String EXTRA_RETURN_RESULT
1406            = "android.intent.extra.RETURN_RESULT";
1407
1408    /**
1409     * Package manager install result code.  @hide because result codes are not
1410     * yet ready to be exposed.
1411     */
1412    public static final String EXTRA_INSTALL_RESULT
1413            = "android.intent.extra.INSTALL_RESULT";
1414
1415    /**
1416     * Activity Action: Launch application uninstaller.
1417     * <p>
1418     * Input: The data must be a package: URI whose scheme specific part is
1419     * the package name of the current installed package to be uninstalled.
1420     * You can optionally supply {@link #EXTRA_RETURN_RESULT}.
1421     * <p>
1422     * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
1423     * succeeded.
1424     */
1425    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1426    public static final String ACTION_UNINSTALL_PACKAGE = "android.intent.action.UNINSTALL_PACKAGE";
1427
1428    /**
1429     * Specify whether the package should be uninstalled for all users.
1430     * @hide because these should not be part of normal application flow.
1431     */
1432    public static final String EXTRA_UNINSTALL_ALL_USERS
1433            = "android.intent.extra.UNINSTALL_ALL_USERS";
1434
1435    /**
1436     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1437     * describing the last run version of the platform that was setup.
1438     * @hide
1439     */
1440    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1441
1442    // ---------------------------------------------------------------------
1443    // ---------------------------------------------------------------------
1444    // Standard intent broadcast actions (see action variable).
1445
1446    /**
1447     * Broadcast Action: Sent when the device goes to sleep and becomes non-interactive.
1448     * <p>
1449     * For historical reasons, the name of this broadcast action refers to the power
1450     * state of the screen but it is actually sent in response to changes in the
1451     * overall interactive state of the device.
1452     * </p><p>
1453     * This broadcast is sent when the device becomes non-interactive which may have
1454     * nothing to do with the screen turning off.  To determine the
1455     * actual state of the screen, use {@link android.view.Display#getState}.
1456     * </p><p>
1457     * See {@link android.os.PowerManager#isInteractive} for details.
1458     * </p>
1459     *
1460     * <p class="note">This is a protected intent that can only be sent
1461     * by the system.
1462     */
1463    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1464    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1465
1466    /**
1467     * Broadcast Action: Sent when the device wakes up and becomes interactive.
1468     * <p>
1469     * For historical reasons, the name of this broadcast action refers to the power
1470     * state of the screen but it is actually sent in response to changes in the
1471     * overall interactive state of the device.
1472     * </p><p>
1473     * This broadcast is sent when the device becomes interactive which may have
1474     * nothing to do with the screen turning on.  To determine the
1475     * actual state of the screen, use {@link android.view.Display#getState}.
1476     * </p><p>
1477     * See {@link android.os.PowerManager#isInteractive} for details.
1478     * </p>
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_SCREEN_ON = "android.intent.action.SCREEN_ON";
1485
1486    /**
1487     * Broadcast Action: Sent after the system stops dreaming.
1488     *
1489     * <p class="note">This is a protected intent that can only be sent by the system.
1490     * It is only sent to registered receivers.</p>
1491     */
1492    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1493    public static final String ACTION_DREAMING_STOPPED = "android.intent.action.DREAMING_STOPPED";
1494
1495    /**
1496     * Broadcast Action: Sent after the system starts dreaming.
1497     *
1498     * <p class="note">This is a protected intent that can only be sent by the system.
1499     * It is only sent to registered receivers.</p>
1500     */
1501    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1502    public static final String ACTION_DREAMING_STARTED = "android.intent.action.DREAMING_STARTED";
1503
1504    /**
1505     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1506     * keyguard is gone).
1507     *
1508     * <p class="note">This is a protected intent that can only be sent
1509     * by the system.
1510     */
1511    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1512    public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
1513
1514    /**
1515     * Broadcast Action: The current time has changed.  Sent every
1516     * minute.  You can <em>not</em> receive this through components declared
1517     * in manifests, only by explicitly registering for it with
1518     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1519     * Context.registerReceiver()}.
1520     *
1521     * <p class="note">This is a protected intent that can only be sent
1522     * by the system.
1523     */
1524    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1525    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1526    /**
1527     * Broadcast Action: The time was set.
1528     */
1529    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1530    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1531    /**
1532     * Broadcast Action: The date has changed.
1533     */
1534    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1535    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1536    /**
1537     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1538     * <ul>
1539     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1540     * </ul>
1541     *
1542     * <p class="note">This is a protected intent that can only be sent
1543     * by the system.
1544     */
1545    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1546    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1547    /**
1548     * Clear DNS Cache Action: This is broadcast when networks have changed and old
1549     * DNS entries should be tossed.
1550     * @hide
1551     */
1552    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1553    public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
1554    /**
1555     * Alarm Changed Action: This is broadcast when the AlarmClock
1556     * application's alarm is set or unset.  It is used by the
1557     * AlarmClock application and the StatusBar service.
1558     * @hide
1559     */
1560    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1561    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1562    /**
1563     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1564     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1565     * @hide
1566     */
1567    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1568    public static final String ACTION_SYNC_STATE_CHANGED
1569            = "android.intent.action.SYNC_STATE_CHANGED";
1570    /**
1571     * Broadcast Action: This is broadcast once, after the system has finished
1572     * booting.  It can be used to perform application-specific initialization,
1573     * such as installing alarms.  You must hold the
1574     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1575     * in order to receive this broadcast.
1576     *
1577     * <p class="note">This is a protected intent that can only be sent
1578     * by the system.
1579     */
1580    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1581    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1582    /**
1583     * Broadcast Action: This is broadcast when a user action should request a
1584     * temporary system dialog to dismiss.  Some examples of temporary system
1585     * dialogs are the notification window-shade and the recent tasks dialog.
1586     */
1587    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1588    /**
1589     * Broadcast Action: Trigger the download and eventual installation
1590     * of a package.
1591     * <p>Input: {@link #getData} is the URI of the package file to download.
1592     *
1593     * <p class="note">This is a protected intent that can only be sent
1594     * by the system.
1595     *
1596     * @deprecated This constant has never been used.
1597     */
1598    @Deprecated
1599    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1600    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1601    /**
1602     * Broadcast Action: A new application package has been installed on the
1603     * device. The data contains the name of the package.  Note that the
1604     * newly installed package does <em>not</em> receive this broadcast.
1605     * <p>May include the following extras:
1606     * <ul>
1607     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1608     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1609     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1610     * </ul>
1611     *
1612     * <p class="note">This is a protected intent that can only be sent
1613     * by the system.
1614     */
1615    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1616    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1617    /**
1618     * Broadcast Action: A new version of an application package has been
1619     * installed, replacing an existing version that was previously installed.
1620     * The data contains the name of the package.
1621     * <p>May include the following extras:
1622     * <ul>
1623     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1624     * </ul>
1625     *
1626     * <p class="note">This is a protected intent that can only be sent
1627     * by the system.
1628     */
1629    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1630    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1631    /**
1632     * Broadcast Action: A new version of your application has been installed
1633     * over an existing one.  This is only sent to the application that was
1634     * replaced.  It does not contain any additional data; to receive it, just
1635     * use an intent filter for this action.
1636     *
1637     * <p class="note">This is a protected intent that can only be sent
1638     * by the system.
1639     */
1640    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1641    public static final String ACTION_MY_PACKAGE_REPLACED = "android.intent.action.MY_PACKAGE_REPLACED";
1642    /**
1643     * Broadcast Action: An existing application package has been removed from
1644     * the device.  The data contains the name of the package.  The package
1645     * that is being installed does <em>not</em> receive this Intent.
1646     * <ul>
1647     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1648     * to the package.
1649     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1650     * application -- data and code -- is being removed.
1651     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1652     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1653     * </ul>
1654     *
1655     * <p class="note">This is a protected intent that can only be sent
1656     * by the system.
1657     */
1658    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1659    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1660    /**
1661     * Broadcast Action: An existing application package has been completely
1662     * removed from the device.  The data contains the name of the package.
1663     * This is like {@link #ACTION_PACKAGE_REMOVED}, but only set when
1664     * {@link #EXTRA_DATA_REMOVED} is true and
1665     * {@link #EXTRA_REPLACING} is false of that broadcast.
1666     *
1667     * <ul>
1668     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1669     * to the package.
1670     * </ul>
1671     *
1672     * <p class="note">This is a protected intent that can only be sent
1673     * by the system.
1674     */
1675    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1676    public static final String ACTION_PACKAGE_FULLY_REMOVED
1677            = "android.intent.action.PACKAGE_FULLY_REMOVED";
1678    /**
1679     * Broadcast Action: An existing application package has been changed (e.g.
1680     * a component has been enabled or disabled).  The data contains the name of
1681     * the package.
1682     * <ul>
1683     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1684     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
1685     * of the changed components (or the package name itself).
1686     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
1687     * default action of restarting the application.
1688     * </ul>
1689     *
1690     * <p class="note">This is a protected intent that can only be sent
1691     * by the system.
1692     */
1693    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1694    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1695    /**
1696     * @hide
1697     * Broadcast Action: Ask system services if there is any reason to
1698     * restart the given package.  The data contains the name of the
1699     * package.
1700     * <ul>
1701     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1702     * <li> {@link #EXTRA_PACKAGES} String array of all packages to check.
1703     * </ul>
1704     *
1705     * <p class="note">This is a protected intent that can only be sent
1706     * by the system.
1707     */
1708    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1709    public static final String ACTION_QUERY_PACKAGE_RESTART = "android.intent.action.QUERY_PACKAGE_RESTART";
1710    /**
1711     * Broadcast Action: The user has restarted a package, and all of its
1712     * processes have been killed.  All runtime state
1713     * associated with it (processes, alarms, notifications, etc) should
1714     * be removed.  Note that the restarted package does <em>not</em>
1715     * receive this broadcast.
1716     * The data contains the name of the package.
1717     * <ul>
1718     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1719     * </ul>
1720     *
1721     * <p class="note">This is a protected intent that can only be sent
1722     * by the system.
1723     */
1724    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1725    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1726    /**
1727     * Broadcast Action: The user has cleared the data of a package.  This should
1728     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1729     * its persistent data is erased and this broadcast sent.
1730     * Note that the cleared package does <em>not</em>
1731     * receive this broadcast. The data contains the name of the package.
1732     * <ul>
1733     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1734     * </ul>
1735     *
1736     * <p class="note">This is a protected intent that can only be sent
1737     * by the system.
1738     */
1739    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1740    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1741    /**
1742     * Broadcast Action: A user ID has been removed from the system.  The user
1743     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1744     *
1745     * <p class="note">This is a protected intent that can only be sent
1746     * by the system.
1747     */
1748    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1749    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1750
1751    /**
1752     * Broadcast Action: Sent to the installer package of an application
1753     * when that application is first launched (that is the first time it
1754     * is moved out of the stopped state).  The data contains the name of the package.
1755     *
1756     * <p class="note">This is a protected intent that can only be sent
1757     * by the system.
1758     */
1759    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1760    public static final String ACTION_PACKAGE_FIRST_LAUNCH = "android.intent.action.PACKAGE_FIRST_LAUNCH";
1761
1762    /**
1763     * Broadcast Action: Sent to the system package verifier when a package
1764     * needs to be verified. The data contains the package URI.
1765     * <p class="note">
1766     * This is a protected intent that can only be sent by the system.
1767     * </p>
1768     */
1769    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1770    public static final String ACTION_PACKAGE_NEEDS_VERIFICATION = "android.intent.action.PACKAGE_NEEDS_VERIFICATION";
1771
1772    /**
1773     * Broadcast Action: Sent to the system package verifier when a package is
1774     * verified. The data contains the package URI.
1775     * <p class="note">
1776     * This is a protected intent that can only be sent by the system.
1777     */
1778    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1779    public static final String ACTION_PACKAGE_VERIFIED = "android.intent.action.PACKAGE_VERIFIED";
1780
1781    /**
1782     * Broadcast Action: Resources for a set of packages (which were
1783     * previously unavailable) are currently
1784     * available since the media on which they exist is available.
1785     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1786     * list of packages whose availability changed.
1787     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1788     * list of uids of packages whose availability changed.
1789     * Note that the
1790     * packages in this list do <em>not</em> receive this broadcast.
1791     * The specified set of packages are now available on the system.
1792     * <p>Includes the following extras:
1793     * <ul>
1794     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1795     * whose resources(were previously unavailable) are currently available.
1796     * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the
1797     * packages whose resources(were previously unavailable)
1798     * are  currently available.
1799     * </ul>
1800     *
1801     * <p class="note">This is a protected intent that can only be sent
1802     * by the system.
1803     */
1804    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1805    public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE =
1806        "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
1807
1808    /**
1809     * Broadcast Action: Resources for a set of packages are currently
1810     * unavailable since the media on which they exist is unavailable.
1811     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1812     * list of packages whose availability changed.
1813     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1814     * list of uids of packages whose availability changed.
1815     * The specified set of packages can no longer be
1816     * launched and are practically unavailable on the system.
1817     * <p>Inclues the following extras:
1818     * <ul>
1819     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1820     * whose resources are no longer available.
1821     * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages
1822     * whose resources are no longer available.
1823     * </ul>
1824     *
1825     * <p class="note">This is a protected intent that can only be sent
1826     * by the system.
1827     */
1828    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1829    public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE =
1830        "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE";
1831
1832    /**
1833     * Broadcast Action:  The current system wallpaper has changed.  See
1834     * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
1835     * This should <em>only</em> be used to determine when the wallpaper
1836     * has changed to show the new wallpaper to the user.  You should certainly
1837     * never, in response to this, change the wallpaper or other attributes of
1838     * it such as the suggested size.  That would be crazy, right?  You'd cause
1839     * all kinds of loops, especially if other apps are doing similar things,
1840     * right?  Of course.  So please don't do this.
1841     *
1842     * @deprecated Modern applications should use
1843     * {@link android.view.WindowManager.LayoutParams#FLAG_SHOW_WALLPAPER
1844     * WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER} to have the wallpaper
1845     * shown behind their UI, rather than watching for this broadcast and
1846     * rendering the wallpaper on their own.
1847     */
1848    @Deprecated @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1849    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1850    /**
1851     * Broadcast Action: The current device {@link android.content.res.Configuration}
1852     * (orientation, locale, etc) has changed.  When such a change happens, the
1853     * UIs (view hierarchy) will need to be rebuilt based on this new
1854     * information; for the most part, applications don't need to worry about
1855     * this, because the system will take care of stopping and restarting the
1856     * application to make sure it sees the new changes.  Some system code that
1857     * can not be restarted will need to watch for this action and handle it
1858     * appropriately.
1859     *
1860     * <p class="note">
1861     * You can <em>not</em> receive this through components declared
1862     * in manifests, only by explicitly registering for it with
1863     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1864     * Context.registerReceiver()}.
1865     *
1866     * <p class="note">This is a protected intent that can only be sent
1867     * by the system.
1868     *
1869     * @see android.content.res.Configuration
1870     */
1871    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1872    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1873    /**
1874     * Broadcast Action: The current device's locale has changed.
1875     *
1876     * <p class="note">This is a protected intent that can only be sent
1877     * by the system.
1878     */
1879    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1880    public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
1881    /**
1882     * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
1883     * charging state, level, and other information about the battery.
1884     * See {@link android.os.BatteryManager} for documentation on the
1885     * contents of the Intent.
1886     *
1887     * <p class="note">
1888     * You can <em>not</em> receive this through components declared
1889     * in manifests, only by explicitly registering for it with
1890     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1891     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1892     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1893     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1894     * broadcasts that are sent and can be received through manifest
1895     * receivers.
1896     *
1897     * <p class="note">This is a protected intent that can only be sent
1898     * by the system.
1899     */
1900    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1901    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1902    /**
1903     * Broadcast Action:  Indicates low battery condition on the device.
1904     * This broadcast corresponds to the "Low battery warning" system dialog.
1905     *
1906     * <p class="note">This is a protected intent that can only be sent
1907     * by the system.
1908     */
1909    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1910    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1911    /**
1912     * Broadcast Action:  Indicates the battery is now okay after being low.
1913     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1914     * gone back up to an okay state.
1915     *
1916     * <p class="note">This is a protected intent that can only be sent
1917     * by the system.
1918     */
1919    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1920    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1921    /**
1922     * Broadcast Action:  External power has been connected to the device.
1923     * This is intended for applications that wish to register specifically to this notification.
1924     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1925     * stay active to receive this notification.  This action can be used to implement actions
1926     * that wait until power is available to trigger.
1927     *
1928     * <p class="note">This is a protected intent that can only be sent
1929     * by the system.
1930     */
1931    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1932    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1933    /**
1934     * Broadcast Action:  External power has been removed from the device.
1935     * This is intended for applications that wish to register specifically to this notification.
1936     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1937     * stay active to receive this notification.  This action can be used to implement actions
1938     * that wait until power is available to trigger.
1939     *
1940     * <p class="note">This is a protected intent that can only be sent
1941     * by the system.
1942     */
1943    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1944    public static final String ACTION_POWER_DISCONNECTED =
1945            "android.intent.action.ACTION_POWER_DISCONNECTED";
1946    /**
1947     * Broadcast Action:  Device is shutting down.
1948     * This is broadcast when the device is being shut down (completely turned
1949     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1950     * will proceed and all unsaved data lost.  Apps will not normally need
1951     * to handle this, since the foreground activity will be paused as well.
1952     *
1953     * <p class="note">This is a protected intent that can only be sent
1954     * by the system.
1955     * <p>May include the following extras:
1956     * <ul>
1957     * <li> {@link #EXTRA_SHUTDOWN_USERSPACE_ONLY} a boolean that is set to true if this
1958     * shutdown is only for userspace processes.  If not set, assumed to be false.
1959     * </ul>
1960     */
1961    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1962    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1963    /**
1964     * Activity Action:  Start this activity to request system shutdown.
1965     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1966     * to request confirmation from the user before shutting down.
1967     *
1968     * <p class="note">This is a protected intent that can only be sent
1969     * by the system.
1970     *
1971     * {@hide}
1972     */
1973    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1974    /**
1975     * Broadcast Action:  A sticky broadcast that indicates low memory
1976     * condition on the device
1977     *
1978     * <p class="note">This is a protected intent that can only be sent
1979     * by the system.
1980     */
1981    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1982    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1983    /**
1984     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1985     *
1986     * <p class="note">This is a protected intent that can only be sent
1987     * by the system.
1988     */
1989    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1990    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1991    /**
1992     * Broadcast Action:  A sticky broadcast that indicates a memory full
1993     * condition on the device. This is intended for activities that want
1994     * to be able to fill the data partition completely, leaving only
1995     * enough free space to prevent system-wide SQLite failures.
1996     *
1997     * <p class="note">This is a protected intent that can only be sent
1998     * by the system.
1999     *
2000     * {@hide}
2001     */
2002    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2003    public static final String ACTION_DEVICE_STORAGE_FULL = "android.intent.action.DEVICE_STORAGE_FULL";
2004    /**
2005     * Broadcast Action:  Indicates memory full condition on the device
2006     * no longer exists.
2007     *
2008     * <p class="note">This is a protected intent that can only be sent
2009     * by the system.
2010     *
2011     * {@hide}
2012     */
2013    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2014    public static final String ACTION_DEVICE_STORAGE_NOT_FULL = "android.intent.action.DEVICE_STORAGE_NOT_FULL";
2015    /**
2016     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
2017     * and package management should be started.
2018     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
2019     * notification.
2020     */
2021    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2022    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
2023    /**
2024     * Broadcast Action:  The device has entered USB Mass Storage mode.
2025     * This is used mainly for the USB Settings panel.
2026     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
2027     * when the SD card file system is mounted or unmounted
2028     * @deprecated replaced by android.os.storage.StorageEventListener
2029     */
2030    @Deprecated
2031    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
2032
2033    /**
2034     * Broadcast Action:  The device has exited USB Mass Storage mode.
2035     * This is used mainly for the USB Settings panel.
2036     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
2037     * when the SD card file system is mounted or unmounted
2038     * @deprecated replaced by android.os.storage.StorageEventListener
2039     */
2040    @Deprecated
2041    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
2042
2043    /**
2044     * Broadcast Action:  External media has been removed.
2045     * The path to the mount point for the removed media is contained in the Intent.mData field.
2046     */
2047    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2048    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
2049
2050    /**
2051     * Broadcast Action:  External media is present, but not mounted at its mount point.
2052     * The path to the mount point for the unmounted media is contained in the Intent.mData field.
2053     */
2054    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2055    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
2056
2057    /**
2058     * Broadcast Action:  External media is present, and being disk-checked
2059     * The path to the mount point for the checking media is contained in the Intent.mData field.
2060     */
2061    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2062    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
2063
2064    /**
2065     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
2066     * The path to the mount point for the checking media is contained in the Intent.mData field.
2067     */
2068    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2069    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
2070
2071    /**
2072     * Broadcast Action:  External media is present and mounted at its mount point.
2073     * The path to the mount point for the mounted media is contained in the Intent.mData field.
2074     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
2075     * media was mounted read only.
2076     */
2077    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2078    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
2079
2080    /**
2081     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
2082     * The path to the mount point for the shared media is contained in the Intent.mData field.
2083     */
2084    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2085    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
2086
2087    /**
2088     * Broadcast Action:  External media is no longer being shared via USB mass storage.
2089     * The path to the mount point for the previously shared media is contained in the Intent.mData field.
2090     *
2091     * @hide
2092     */
2093    public static final String ACTION_MEDIA_UNSHARED = "android.intent.action.MEDIA_UNSHARED";
2094
2095    /**
2096     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
2097     * The path to the mount point for the removed media is contained in the Intent.mData field.
2098     */
2099    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2100    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
2101
2102    /**
2103     * Broadcast Action:  External media is present but cannot be mounted.
2104     * The path to the mount point for the unmountable media is contained in the Intent.mData field.
2105     */
2106    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2107    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
2108
2109   /**
2110     * Broadcast Action:  User has expressed the desire to remove the external storage media.
2111     * Applications should close all files they have open within the mount point when they receive this intent.
2112     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
2113     */
2114    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2115    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
2116
2117    /**
2118     * Broadcast Action:  The media scanner has started scanning a directory.
2119     * The path to the directory being scanned is contained in the Intent.mData field.
2120     */
2121    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2122    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
2123
2124   /**
2125     * Broadcast Action:  The media scanner has finished scanning a directory.
2126     * The path to the scanned directory is contained in the Intent.mData field.
2127     */
2128    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2129    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
2130
2131   /**
2132     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
2133     * The path to the file is contained in the Intent.mData field.
2134     */
2135    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2136    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
2137
2138   /**
2139     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
2140     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
2141     * caused the broadcast.
2142     */
2143    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2144    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
2145
2146    /**
2147     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
2148     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
2149     * caused the broadcast.
2150     */
2151    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2152    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
2153
2154    // *** NOTE: @todo(*) The following really should go into a more domain-specific
2155    // location; they are not general-purpose actions.
2156
2157    /**
2158     * Broadcast Action: A GTalk connection has been established.
2159     */
2160    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2161    public static final String ACTION_GTALK_SERVICE_CONNECTED =
2162            "android.intent.action.GTALK_CONNECTED";
2163
2164    /**
2165     * Broadcast Action: A GTalk connection has been disconnected.
2166     */
2167    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2168    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
2169            "android.intent.action.GTALK_DISCONNECTED";
2170
2171    /**
2172     * Broadcast Action: An input method has been changed.
2173     */
2174    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2175    public static final String ACTION_INPUT_METHOD_CHANGED =
2176            "android.intent.action.INPUT_METHOD_CHANGED";
2177
2178    /**
2179     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
2180     * more radios have been turned off or on. The intent will have the following extra value:</p>
2181     * <ul>
2182     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
2183     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
2184     *   turned off</li>
2185     * </ul>
2186     *
2187     * <p class="note">This is a protected intent that can only be sent
2188     * by the system.
2189     */
2190    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2191    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
2192
2193    /**
2194     * Broadcast Action: Some content providers have parts of their namespace
2195     * where they publish new events or items that the user may be especially
2196     * interested in. For these things, they may broadcast this action when the
2197     * set of interesting items change.
2198     *
2199     * For example, GmailProvider sends this notification when the set of unread
2200     * mail in the inbox changes.
2201     *
2202     * <p>The data of the intent identifies which part of which provider
2203     * changed. When queried through the content resolver, the data URI will
2204     * return the data set in question.
2205     *
2206     * <p>The intent will have the following extra values:
2207     * <ul>
2208     *   <li><em>count</em> - The number of items in the data set. This is the
2209     *       same as the number of items in the cursor returned by querying the
2210     *       data URI. </li>
2211     * </ul>
2212     *
2213     * This intent will be sent at boot (if the count is non-zero) and when the
2214     * data set changes. It is possible for the data set to change without the
2215     * count changing (for example, if a new unread message arrives in the same
2216     * sync operation in which a message is archived). The phone should still
2217     * ring/vibrate/etc as normal in this case.
2218     */
2219    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2220    public static final String ACTION_PROVIDER_CHANGED =
2221            "android.intent.action.PROVIDER_CHANGED";
2222
2223    /**
2224     * Broadcast Action: Wired Headset plugged in or unplugged.
2225     *
2226     * Same as {@link android.media.AudioManager#ACTION_HEADSET_PLUG}, to be consulted for value
2227     *   and documentation.
2228     * <p>If the minimum SDK version of your application is
2229     * {@link android.os.Build.VERSION_CODES#L}, it is recommended to refer
2230     * to the <code>AudioManager</code> constant in your receiver registration code instead.
2231     */
2232    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2233    public static final String ACTION_HEADSET_PLUG = android.media.AudioManager.ACTION_HEADSET_PLUG;
2234
2235    /**
2236     * <p>Broadcast Action: The user has switched on advanced settings in the settings app:</p>
2237     * <ul>
2238     *   <li><em>state</em> - A boolean value indicating whether the settings is on or off.</li>
2239     * </ul>
2240     *
2241     * <p class="note">This is a protected intent that can only be sent
2242     * by the system.
2243     *
2244     * @hide
2245     */
2246    //@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2247    public static final String ACTION_ADVANCED_SETTINGS_CHANGED
2248            = "android.intent.action.ADVANCED_SETTINGS";
2249
2250    /**
2251     *  Broadcast Action: Sent after application restrictions are changed.
2252     *
2253     * <p class="note">This is a protected intent that can only be sent
2254     * by the system.</p>
2255     */
2256    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2257    public static final String ACTION_APPLICATION_RESTRICTIONS_CHANGED =
2258            "android.intent.action.APPLICATION_RESTRICTIONS_CHANGED";
2259
2260    /**
2261     * Broadcast Action: An outgoing call is about to be placed.
2262     *
2263     * <p>The Intent will have the following extra value:</p>
2264     * <ul>
2265     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
2266     *       the phone number originally intended to be dialed.</li>
2267     * </ul>
2268     * <p>Once the broadcast is finished, the resultData is used as the actual
2269     * number to call.  If  <code>null</code>, no call will be placed.</p>
2270     * <p>It is perfectly acceptable for multiple receivers to process the
2271     * outgoing call in turn: for example, a parental control application
2272     * might verify that the user is authorized to place the call at that
2273     * time, then a number-rewriting application might add an area code if
2274     * one was not specified.</p>
2275     * <p>For consistency, any receiver whose purpose is to prohibit phone
2276     * calls should have a priority of 0, to ensure it will see the final
2277     * phone number to be dialed.
2278     * Any receiver whose purpose is to rewrite phone numbers to be called
2279     * should have a positive priority.
2280     * Negative priorities are reserved for the system for this broadcast;
2281     * using them may cause problems.</p>
2282     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
2283     * abort the broadcast.</p>
2284     * <p>Emergency calls cannot be intercepted using this mechanism, and
2285     * other calls cannot be modified to call emergency numbers using this
2286     * mechanism.
2287     * <p>Some apps (such as VoIP apps) may want to redirect the outgoing
2288     * call to use their own service instead. Those apps should first prevent
2289     * the call from being placed by setting resultData to <code>null</code>
2290     * and then start their own app to make the call.
2291     * <p>You must hold the
2292     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
2293     * permission to receive this Intent.</p>
2294     *
2295     * <p class="note">This is a protected intent that can only be sent
2296     * by the system.
2297     */
2298    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2299    public static final String ACTION_NEW_OUTGOING_CALL =
2300            "android.intent.action.NEW_OUTGOING_CALL";
2301
2302    /**
2303     * Broadcast Action: Have the device reboot.  This is only for use by
2304     * system code.
2305     *
2306     * <p class="note">This is a protected intent that can only be sent
2307     * by the system.
2308     */
2309    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2310    public static final String ACTION_REBOOT =
2311            "android.intent.action.REBOOT";
2312
2313    /**
2314     * Broadcast Action:  A sticky broadcast for changes in the physical
2315     * docking state of the device.
2316     *
2317     * <p>The intent will have the following extra values:
2318     * <ul>
2319     *   <li><em>{@link #EXTRA_DOCK_STATE}</em> - the current dock
2320     *       state, indicating which dock the device is physically in.</li>
2321     * </ul>
2322     * <p>This is intended for monitoring the current physical dock state.
2323     * See {@link android.app.UiModeManager} for the normal API dealing with
2324     * dock mode changes.
2325     */
2326    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2327    public static final String ACTION_DOCK_EVENT =
2328            "android.intent.action.DOCK_EVENT";
2329
2330    /**
2331     * Broadcast Action: A broadcast when idle maintenance can be started.
2332     * This means that the user is not interacting with the device and is
2333     * not expected to do so soon. Typical use of the idle maintenance is
2334     * to perform somehow expensive tasks that can be postponed at a moment
2335     * when they will not degrade user experience.
2336     * <p>
2337     * <p class="note">In order to keep the device responsive in case of an
2338     * unexpected user interaction, implementations of a maintenance task
2339     * should be interruptible. In such a scenario a broadcast with action
2340     * {@link #ACTION_IDLE_MAINTENANCE_END} will be sent. In other words, you
2341     * should not do the maintenance work in
2342     * {@link BroadcastReceiver#onReceive(Context, Intent)}, rather start a
2343     * maintenance service by {@link Context#startService(Intent)}. Also
2344     * you should hold a wake lock while your maintenance service is running
2345     * to prevent the device going to sleep.
2346     * </p>
2347     * <p>
2348     * <p class="note">This is a protected intent that can only be sent by
2349     * the system.
2350     * </p>
2351     *
2352     * @see #ACTION_IDLE_MAINTENANCE_END
2353     *
2354     * @hide
2355     */
2356    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2357    public static final String ACTION_IDLE_MAINTENANCE_START =
2358            "android.intent.action.ACTION_IDLE_MAINTENANCE_START";
2359
2360    /**
2361     * Broadcast Action:  A broadcast when idle maintenance should be stopped.
2362     * This means that the user was not interacting with the device as a result
2363     * of which a broadcast with action {@link #ACTION_IDLE_MAINTENANCE_START}
2364     * was sent and now the user started interacting with the device. Typical
2365     * use of the idle maintenance is to perform somehow expensive tasks that
2366     * can be postponed at a moment when they will not degrade user experience.
2367     * <p>
2368     * <p class="note">In order to keep the device responsive in case of an
2369     * unexpected user interaction, implementations of a maintenance task
2370     * should be interruptible. Hence, on receiving a broadcast with this
2371     * action, the maintenance task should be interrupted as soon as possible.
2372     * In other words, you should not do the maintenance work in
2373     * {@link BroadcastReceiver#onReceive(Context, Intent)}, rather stop the
2374     * maintenance service that was started on receiving of
2375     * {@link #ACTION_IDLE_MAINTENANCE_START}.Also you should release the wake
2376     * lock you acquired when your maintenance service started.
2377     * </p>
2378     * <p class="note">This is a protected intent that can only be sent
2379     * by the system.
2380     *
2381     * @see #ACTION_IDLE_MAINTENANCE_START
2382     *
2383     * @hide
2384     */
2385    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2386    public static final String ACTION_IDLE_MAINTENANCE_END =
2387            "android.intent.action.ACTION_IDLE_MAINTENANCE_END";
2388
2389    /**
2390     * Broadcast Action: a remote intent is to be broadcasted.
2391     *
2392     * A remote intent is used for remote RPC between devices. The remote intent
2393     * is serialized and sent from one device to another device. The receiving
2394     * device parses the remote intent and broadcasts it. Note that anyone can
2395     * broadcast a remote intent. However, if the intent receiver of the remote intent
2396     * does not trust intent broadcasts from arbitrary intent senders, it should require
2397     * the sender to hold certain permissions so only trusted sender's broadcast will be
2398     * let through.
2399     * @hide
2400     */
2401    public static final String ACTION_REMOTE_INTENT =
2402            "com.google.android.c2dm.intent.RECEIVE";
2403
2404    /**
2405     * Broadcast Action: hook for permforming cleanup after a system update.
2406     *
2407     * The broadcast is sent when the system is booting, before the
2408     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
2409     * image.  A receiver for this should do its work and then disable itself
2410     * so that it does not get run again at the next boot.
2411     * @hide
2412     */
2413    public static final String ACTION_PRE_BOOT_COMPLETED =
2414            "android.intent.action.PRE_BOOT_COMPLETED";
2415
2416    /**
2417     * Broadcast to a specific application to query any supported restrictions to impose
2418     * on restricted users. The broadcast intent contains an extra
2419     * {@link #EXTRA_RESTRICTIONS_BUNDLE} with the currently persisted
2420     * restrictions as a Bundle of key/value pairs. The value types can be Boolean, String or
2421     * String[] depending on the restriction type.<p/>
2422     * The response should contain an extra {@link #EXTRA_RESTRICTIONS_LIST},
2423     * which is of type <code>ArrayList&lt;RestrictionEntry&gt;</code>. It can also
2424     * contain an extra {@link #EXTRA_RESTRICTIONS_INTENT}, which is of type <code>Intent</code>.
2425     * The activity specified by that intent will be launched for a result which must contain
2426     * one of the extras {@link #EXTRA_RESTRICTIONS_LIST} or {@link #EXTRA_RESTRICTIONS_BUNDLE}.
2427     * The keys and values of the returned restrictions will be persisted.
2428     * @see RestrictionEntry
2429     */
2430    public static final String ACTION_GET_RESTRICTION_ENTRIES =
2431            "android.intent.action.GET_RESTRICTION_ENTRIES";
2432
2433    /**
2434     * @hide
2435     * Activity to challenge the user for a PIN that was configured when setting up
2436     * restrictions. Restrictions include blocking of apps and preventing certain user operations,
2437     * controlled by {@link android.os.UserManager#setUserRestrictions(Bundle).
2438     * Launch the activity using
2439     * {@link android.app.Activity#startActivityForResult(Intent, int)} and check if the
2440     * result is {@link android.app.Activity#RESULT_OK} for a successful response to the
2441     * challenge.<p/>
2442     * Before launching this activity, make sure that there is a PIN in effect, by calling
2443     * {@link android.os.UserManager#hasRestrictionsChallenge()}.
2444     */
2445    public static final String ACTION_RESTRICTIONS_CHALLENGE =
2446            "android.intent.action.RESTRICTIONS_CHALLENGE";
2447
2448    /**
2449     * Sent the first time a user is starting, to allow system apps to
2450     * perform one time initialization.  (This will not be seen by third
2451     * party applications because a newly initialized user does not have any
2452     * third party applications installed for it.)  This is sent early in
2453     * starting the user, around the time the home app is started, before
2454     * {@link #ACTION_BOOT_COMPLETED} is sent.  This is sent as a foreground
2455     * broadcast, since it is part of a visible user interaction; be as quick
2456     * as possible when handling it.
2457     */
2458    public static final String ACTION_USER_INITIALIZE =
2459            "android.intent.action.USER_INITIALIZE";
2460
2461    /**
2462     * Sent when a user switch is happening, causing the process's user to be
2463     * brought to the foreground.  This is only sent to receivers registered
2464     * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
2465     * Context.registerReceiver}.  It is sent to the user that is going to the
2466     * foreground.  This is sent as a foreground
2467     * broadcast, since it is part of a visible user interaction; be as quick
2468     * as possible when handling it.
2469     */
2470    public static final String ACTION_USER_FOREGROUND =
2471            "android.intent.action.USER_FOREGROUND";
2472
2473    /**
2474     * Sent when a user switch is happening, causing the process's user to be
2475     * sent to the background.  This is only sent to receivers registered
2476     * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
2477     * Context.registerReceiver}.  It is sent to the user that is going to the
2478     * background.  This is sent as a foreground
2479     * broadcast, since it is part of a visible user interaction; be as quick
2480     * as possible when handling it.
2481     */
2482    public static final String ACTION_USER_BACKGROUND =
2483            "android.intent.action.USER_BACKGROUND";
2484
2485    /**
2486     * Broadcast sent to the system when a user is added. Carries an extra
2487     * EXTRA_USER_HANDLE that has the userHandle of the new user.  It is sent to
2488     * all running users.  You must hold
2489     * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
2490     * @hide
2491     */
2492    public static final String ACTION_USER_ADDED =
2493            "android.intent.action.USER_ADDED";
2494
2495    /**
2496     * Broadcast sent by the system when a user is started. Carries an extra
2497     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only sent to
2498     * registered receivers, not manifest receivers.  It is sent to the user
2499     * that has been started.  This is sent as a foreground
2500     * broadcast, since it is part of a visible user interaction; be as quick
2501     * as possible when handling it.
2502     * @hide
2503     */
2504    public static final String ACTION_USER_STARTED =
2505            "android.intent.action.USER_STARTED";
2506
2507    /**
2508     * Broadcast sent when a user is in the process of starting.  Carries an extra
2509     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only
2510     * sent to registered receivers, not manifest receivers.  It is sent to all
2511     * users (including the one that is being started).  You must hold
2512     * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive
2513     * this broadcast.  This is sent as a background broadcast, since
2514     * its result is not part of the primary UX flow; to safely keep track of
2515     * started/stopped state of a user you can use this in conjunction with
2516     * {@link #ACTION_USER_STOPPING}.  It is <b>not</b> generally safe to use with
2517     * other user state broadcasts since those are foreground broadcasts so can
2518     * execute in a different order.
2519     * @hide
2520     */
2521    public static final String ACTION_USER_STARTING =
2522            "android.intent.action.USER_STARTING";
2523
2524    /**
2525     * Broadcast sent when a user is going to be stopped.  Carries an extra
2526     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only
2527     * sent to registered receivers, not manifest receivers.  It is sent to all
2528     * users (including the one that is being stopped).  You must hold
2529     * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive
2530     * this broadcast.  The user will not stop until all receivers have
2531     * handled the broadcast.  This is sent as a background broadcast, since
2532     * its result is not part of the primary UX flow; to safely keep track of
2533     * started/stopped state of a user you can use this in conjunction with
2534     * {@link #ACTION_USER_STARTING}.  It is <b>not</b> generally safe to use with
2535     * other user state broadcasts since those are foreground broadcasts so can
2536     * execute in a different order.
2537     * @hide
2538     */
2539    public static final String ACTION_USER_STOPPING =
2540            "android.intent.action.USER_STOPPING";
2541
2542    /**
2543     * Broadcast sent to the system when a user is stopped. Carries an extra
2544     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is similar to
2545     * {@link #ACTION_PACKAGE_RESTARTED}, but for an entire user instead of a
2546     * specific package.  This is only sent to registered receivers, not manifest
2547     * receivers.  It is sent to all running users <em>except</em> the one that
2548     * has just been stopped (which is no longer running).
2549     * @hide
2550     */
2551    public static final String ACTION_USER_STOPPED =
2552            "android.intent.action.USER_STOPPED";
2553
2554    /**
2555     * Broadcast sent to the system when a user is removed. Carries an extra EXTRA_USER_HANDLE that has
2556     * the userHandle of the user.  It is sent to all running users except the
2557     * one that has been removed. The user will not be completely removed until all receivers have
2558     * handled the broadcast. You must hold
2559     * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
2560     * @hide
2561     */
2562    public static final String ACTION_USER_REMOVED =
2563            "android.intent.action.USER_REMOVED";
2564
2565    /**
2566     * Broadcast sent to the system when the user switches. Carries an extra EXTRA_USER_HANDLE that has
2567     * the userHandle of the user to become the current one. This is only sent to
2568     * registered receivers, not manifest receivers.  It is sent to all running users.
2569     * You must hold
2570     * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
2571     * @hide
2572     */
2573    public static final String ACTION_USER_SWITCHED =
2574            "android.intent.action.USER_SWITCHED";
2575
2576    /**
2577     * Broadcast sent to the system when a user's information changes. Carries an extra
2578     * {@link #EXTRA_USER_HANDLE} to indicate which user's information changed.
2579     * This is only sent to registered receivers, not manifest receivers. It is sent to all users.
2580     * @hide
2581     */
2582    public static final String ACTION_USER_INFO_CHANGED =
2583            "android.intent.action.USER_INFO_CHANGED";
2584
2585    /**
2586     * Broadcast sent to the primary user when an associated managed profile is added (the profile
2587     * was created and is ready to be used). Carries an extra {@link #EXTRA_USER} that specifies
2588     * the UserHandle of the profile that was added. Only applications (for example Launchers)
2589     * that need to display merged content across both primary and managed profiles need to
2590     * worry about this broadcast. This is only sent to registered receivers,
2591     * not manifest receivers.
2592     */
2593    public static final String ACTION_MANAGED_PROFILE_ADDED =
2594            "android.intent.action.MANAGED_PROFILE_ADDED";
2595
2596    /**
2597     * Broadcast sent to the primary user when an associated managed profile is removed. Carries an
2598     * extra {@link #EXTRA_USER} that specifies the UserHandle of the profile that was removed.
2599     * Only applications (for example Launchers) that need to display merged content across both
2600     * primary and managed profiles need to worry about this broadcast. This is only sent to
2601     * registered receivers, not manifest receivers.
2602     */
2603    public static final String ACTION_MANAGED_PROFILE_REMOVED =
2604            "android.intent.action.MANAGED_PROFILE_REMOVED";
2605
2606    /**
2607     * Sent when the user taps on the clock widget in the system's "quick settings" area.
2608     */
2609    public static final String ACTION_QUICK_CLOCK =
2610            "android.intent.action.QUICK_CLOCK";
2611
2612    /**
2613     * Activity Action: Shows the brightness setting dialog.
2614     * @hide
2615     */
2616    public static final String ACTION_SHOW_BRIGHTNESS_DIALOG =
2617            "android.intent.action.SHOW_BRIGHTNESS_DIALOG";
2618
2619    /**
2620     * Broadcast Action:  A global button was pressed.  Includes a single
2621     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
2622     * caused the broadcast.
2623     * @hide
2624     */
2625    public static final String ACTION_GLOBAL_BUTTON = "android.intent.action.GLOBAL_BUTTON";
2626
2627    /**
2628     * Activity Action: Allow the user to select and return one or more existing
2629     * documents. When invoked, the system will display the various
2630     * {@link DocumentsProvider} instances installed on the device, letting the
2631     * user interactively navigate through them. These documents include local
2632     * media, such as photos and video, and documents provided by installed
2633     * cloud storage providers.
2634     * <p>
2635     * Each document is represented as a {@code content://} URI backed by a
2636     * {@link DocumentsProvider}, which can be opened as a stream with
2637     * {@link ContentResolver#openFileDescriptor(Uri, String)}, or queried for
2638     * {@link android.provider.DocumentsContract.Document} metadata.
2639     * <p>
2640     * All selected documents are returned to the calling application with
2641     * persistable read and write permission grants. If you want to maintain
2642     * access to the documents across device reboots, you need to explicitly
2643     * take the persistable permissions using
2644     * {@link ContentResolver#takePersistableUriPermission(Uri, int)}.
2645     * <p>
2646     * Callers must indicate the acceptable document MIME types through
2647     * {@link #setType(String)}. For example, to select photos, use
2648     * {@code image/*}. If multiple disjoint MIME types are acceptable, define
2649     * them in {@link #EXTRA_MIME_TYPES} and {@link #setType(String)} to
2650     * {@literal *}/*.
2651     * <p>
2652     * If the caller can handle multiple returned items (the user performing
2653     * multiple selection), then you can specify {@link #EXTRA_ALLOW_MULTIPLE}
2654     * to indicate this.
2655     * <p>
2656     * Callers must include {@link #CATEGORY_OPENABLE} in the Intent so that
2657     * returned URIs can be opened with
2658     * {@link ContentResolver#openFileDescriptor(Uri, String)}.
2659     * <p>
2660     * Output: The URI of the item that was picked, returned in
2661     * {@link #getData()}. This must be a {@code content://} URI so that any
2662     * receiver can access it. If multiple documents were selected, they are
2663     * returned in {@link #getClipData()}.
2664     *
2665     * @see DocumentsContract
2666     * @see #ACTION_OPEN_DOCUMENT_TREE
2667     * @see #ACTION_CREATE_DOCUMENT
2668     * @see #FLAG_GRANT_PERSISTABLE_URI_PERMISSION
2669     */
2670    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
2671    public static final String ACTION_OPEN_DOCUMENT = "android.intent.action.OPEN_DOCUMENT";
2672
2673    /**
2674     * Activity Action: Allow the user to create a new document. When invoked,
2675     * the system will display the various {@link DocumentsProvider} instances
2676     * installed on the device, letting the user navigate through them. The
2677     * returned document may be a newly created document with no content, or it
2678     * may be an existing document with the requested MIME type.
2679     * <p>
2680     * Each document is represented as a {@code content://} URI backed by a
2681     * {@link DocumentsProvider}, which can be opened as a stream with
2682     * {@link ContentResolver#openFileDescriptor(Uri, String)}, or queried for
2683     * {@link android.provider.DocumentsContract.Document} metadata.
2684     * <p>
2685     * Callers must indicate the concrete MIME type of the document being
2686     * created by setting {@link #setType(String)}. This MIME type cannot be
2687     * changed after the document is created.
2688     * <p>
2689     * Callers can provide an initial display name through {@link #EXTRA_TITLE},
2690     * but the user may change this value before creating the file.
2691     * <p>
2692     * Callers must include {@link #CATEGORY_OPENABLE} in the Intent so that
2693     * returned URIs can be opened with
2694     * {@link ContentResolver#openFileDescriptor(Uri, String)}.
2695     * <p>
2696     * Output: The URI of the item that was created. This must be a
2697     * {@code content://} URI so that any receiver can access it.
2698     *
2699     * @see DocumentsContract
2700     * @see #ACTION_OPEN_DOCUMENT
2701     * @see #ACTION_OPEN_DOCUMENT_TREE
2702     * @see #FLAG_GRANT_PERSISTABLE_URI_PERMISSION
2703     */
2704    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
2705    public static final String ACTION_CREATE_DOCUMENT = "android.intent.action.CREATE_DOCUMENT";
2706
2707    /**
2708     * Activity Action: Allow the user to pick a directory subtree. When
2709     * invoked, the system will display the various {@link DocumentsProvider}
2710     * instances installed on the device, letting the user navigate through
2711     * them. Apps can fully manage documents within the returned directory.
2712     * <p>
2713     * To gain access to descendant (child, grandchild, etc) documents, use
2714     * {@link DocumentsContract#buildDocumentUriUsingTree(Uri, String)} and
2715     * {@link DocumentsContract#buildChildDocumentsUriUsingTree(Uri, String)}
2716     * with the returned URI.
2717     * <p>
2718     * Output: The URI representing the selected directory tree.
2719     *
2720     * @see DocumentsContract
2721     */
2722    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
2723    public static final String
2724            ACTION_OPEN_DOCUMENT_TREE = "android.intent.action.OPEN_DOCUMENT_TREE";
2725
2726    /** {@hide} */
2727    public static final String ACTION_MASTER_CLEAR = "android.intent.action.MASTER_CLEAR";
2728
2729    // ---------------------------------------------------------------------
2730    // ---------------------------------------------------------------------
2731    // Standard intent categories (see addCategory()).
2732
2733    /**
2734     * Set if the activity should be an option for the default action
2735     * (center press) to perform on a piece of data.  Setting this will
2736     * hide from the user any activities without it set when performing an
2737     * action on some data.  Note that this is normally -not- set in the
2738     * Intent when initiating an action -- it is for use in intent filters
2739     * specified in packages.
2740     */
2741    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2742    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
2743    /**
2744     * Activities that can be safely invoked from a browser must support this
2745     * category.  For example, if the user is viewing a web page or an e-mail
2746     * and clicks on a link in the text, the Intent generated execute that
2747     * link will require the BROWSABLE category, so that only activities
2748     * supporting this category will be considered as possible actions.  By
2749     * supporting this category, you are promising that there is nothing
2750     * damaging (without user intervention) that can happen by invoking any
2751     * matching Intent.
2752     */
2753    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2754    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
2755    /**
2756     * @hide
2757     * Categories for activities that can participate in voice interaction.
2758     * An activity that supports this category must be prepared to run with
2759     * no UI shown at all (though in some case it may have a UI shown), and
2760     * rely on {@link android.app.VoiceInteractor} to interact with the user.
2761     */
2762    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2763    @SystemApi
2764    public static final String CATEGORY_VOICE = "android.intent.category.VOICE";
2765    /**
2766     * Set if the activity should be considered as an alternative action to
2767     * the data the user is currently viewing.  See also
2768     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
2769     * applies to the selection in a list of items.
2770     *
2771     * <p>Supporting this category means that you would like your activity to be
2772     * displayed in the set of alternative things the user can do, usually as
2773     * part of the current activity's options menu.  You will usually want to
2774     * include a specific label in the &lt;intent-filter&gt; of this action
2775     * describing to the user what it does.
2776     *
2777     * <p>The action of IntentFilter with this category is important in that it
2778     * describes the specific action the target will perform.  This generally
2779     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
2780     * a specific name such as "com.android.camera.action.CROP.  Only one
2781     * alternative of any particular action will be shown to the user, so using
2782     * a specific action like this makes sure that your alternative will be
2783     * displayed while also allowing other applications to provide their own
2784     * overrides of that particular action.
2785     */
2786    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2787    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
2788    /**
2789     * Set if the activity should be considered as an alternative selection
2790     * action to the data the user has currently selected.  This is like
2791     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
2792     * of items from which the user can select, giving them alternatives to the
2793     * default action that will be performed on it.
2794     */
2795    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2796    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
2797    /**
2798     * Intended to be used as a tab inside of a containing TabActivity.
2799     */
2800    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2801    public static final String CATEGORY_TAB = "android.intent.category.TAB";
2802    /**
2803     * Should be displayed in the top-level launcher.
2804     */
2805    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2806    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
2807    /**
2808     * Indicates an activity optimized for Leanback mode, and that should
2809     * be displayed in the Leanback launcher.
2810     */
2811    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2812    public static final String CATEGORY_LEANBACK_LAUNCHER = "android.intent.category.LEANBACK_LAUNCHER";
2813    /**
2814     * Indicates a Leanback settings activity to be displayed in the Leanback launcher.
2815     * @hide
2816     */
2817    @SystemApi
2818    public static final String CATEGORY_LEANBACK_SETTINGS = "android.intent.category.LEANBACK_SETTINGS";
2819    /**
2820     * Provides information about the package it is in; typically used if
2821     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
2822     * a front-door to the user without having to be shown in the all apps list.
2823     */
2824    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2825    public static final String CATEGORY_INFO = "android.intent.category.INFO";
2826    /**
2827     * This is the home activity, that is the first activity that is displayed
2828     * when the device boots.
2829     */
2830    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2831    public static final String CATEGORY_HOME = "android.intent.category.HOME";
2832    /**
2833     * This activity is a preference panel.
2834     */
2835    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2836    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
2837    /**
2838     * This activity is a development preference panel.
2839     */
2840    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2841    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
2842    /**
2843     * Capable of running inside a parent activity container.
2844     */
2845    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2846    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
2847    /**
2848     * This activity allows the user to browse and download new applications.
2849     */
2850    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2851    public static final String CATEGORY_APP_MARKET = "android.intent.category.APP_MARKET";
2852    /**
2853     * This activity may be exercised by the monkey or other automated test tools.
2854     */
2855    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2856    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
2857    /**
2858     * To be used as a test (not part of the normal user experience).
2859     */
2860    public static final String CATEGORY_TEST = "android.intent.category.TEST";
2861    /**
2862     * To be used as a unit test (run through the Test Harness).
2863     */
2864    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
2865    /**
2866     * To be used as a sample code example (not part of the normal user
2867     * experience).
2868     */
2869    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
2870
2871    /**
2872     * Used to indicate that an intent only wants URIs that can be opened with
2873     * {@link ContentResolver#openFileDescriptor(Uri, String)}. Openable URIs
2874     * must support at least the columns defined in {@link OpenableColumns} when
2875     * queried.
2876     *
2877     * @see #ACTION_GET_CONTENT
2878     * @see #ACTION_OPEN_DOCUMENT
2879     * @see #ACTION_CREATE_DOCUMENT
2880     */
2881    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2882    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
2883
2884    /**
2885     * To be used as code under test for framework instrumentation tests.
2886     */
2887    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
2888            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
2889    /**
2890     * An activity to run when device is inserted into a car dock.
2891     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2892     * information, see {@link android.app.UiModeManager}.
2893     */
2894    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2895    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
2896    /**
2897     * An activity to run when device is inserted into a car dock.
2898     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2899     * information, see {@link android.app.UiModeManager}.
2900     */
2901    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2902    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
2903    /**
2904     * An activity to run when device is inserted into a analog (low end) dock.
2905     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2906     * information, see {@link android.app.UiModeManager}.
2907     */
2908    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2909    public static final String CATEGORY_LE_DESK_DOCK = "android.intent.category.LE_DESK_DOCK";
2910
2911    /**
2912     * An activity to run when device is inserted into a digital (high end) dock.
2913     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2914     * information, see {@link android.app.UiModeManager}.
2915     */
2916    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2917    public static final String CATEGORY_HE_DESK_DOCK = "android.intent.category.HE_DESK_DOCK";
2918
2919    /**
2920     * Used to indicate that the activity can be used in a car environment.
2921     */
2922    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2923    public static final String CATEGORY_CAR_MODE = "android.intent.category.CAR_MODE";
2924
2925    // ---------------------------------------------------------------------
2926    // ---------------------------------------------------------------------
2927    // Application launch intent categories (see addCategory()).
2928
2929    /**
2930     * Used with {@link #ACTION_MAIN} to launch the browser application.
2931     * The activity should be able to browse the Internet.
2932     * <p>NOTE: This should not be used as the primary key of an Intent,
2933     * since it will not result in the app launching with the correct
2934     * action and category.  Instead, use this with
2935     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2936     * Intent with this category in the selector.</p>
2937     */
2938    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2939    public static final String CATEGORY_APP_BROWSER = "android.intent.category.APP_BROWSER";
2940
2941    /**
2942     * Used with {@link #ACTION_MAIN} to launch the calculator application.
2943     * The activity should be able to perform standard arithmetic operations.
2944     * <p>NOTE: This should not be used as the primary key of an Intent,
2945     * since it will not result in the app launching with the correct
2946     * action and category.  Instead, use this with
2947     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2948     * Intent with this category in the selector.</p>
2949     */
2950    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2951    public static final String CATEGORY_APP_CALCULATOR = "android.intent.category.APP_CALCULATOR";
2952
2953    /**
2954     * Used with {@link #ACTION_MAIN} to launch the calendar application.
2955     * The activity should be able to view and manipulate calendar entries.
2956     * <p>NOTE: This should not be used as the primary key of an Intent,
2957     * since it will not result in the app launching with the correct
2958     * action and category.  Instead, use this with
2959     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2960     * Intent with this category in the selector.</p>
2961     */
2962    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2963    public static final String CATEGORY_APP_CALENDAR = "android.intent.category.APP_CALENDAR";
2964
2965    /**
2966     * Used with {@link #ACTION_MAIN} to launch the contacts application.
2967     * The activity should be able to view and manipulate address book entries.
2968     * <p>NOTE: This should not be used as the primary key of an Intent,
2969     * since it will not result in the app launching with the correct
2970     * action and category.  Instead, use this with
2971     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2972     * Intent with this category in the selector.</p>
2973     */
2974    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2975    public static final String CATEGORY_APP_CONTACTS = "android.intent.category.APP_CONTACTS";
2976
2977    /**
2978     * Used with {@link #ACTION_MAIN} to launch the email application.
2979     * The activity should be able to send and receive email.
2980     * <p>NOTE: This should not be used as the primary key of an Intent,
2981     * since it will not result in the app launching with the correct
2982     * action and category.  Instead, use this with
2983     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2984     * Intent with this category in the selector.</p>
2985     */
2986    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2987    public static final String CATEGORY_APP_EMAIL = "android.intent.category.APP_EMAIL";
2988
2989    /**
2990     * Used with {@link #ACTION_MAIN} to launch the gallery application.
2991     * The activity should be able to view and manipulate image and video files
2992     * stored on the device.
2993     * <p>NOTE: This should not be used as the primary key of an Intent,
2994     * since it will not result in the app launching with the correct
2995     * action and category.  Instead, use this with
2996     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2997     * Intent with this category in the selector.</p>
2998     */
2999    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
3000    public static final String CATEGORY_APP_GALLERY = "android.intent.category.APP_GALLERY";
3001
3002    /**
3003     * Used with {@link #ACTION_MAIN} to launch the maps application.
3004     * The activity should be able to show the user's current location and surroundings.
3005     * <p>NOTE: This should not be used as the primary key of an Intent,
3006     * since it will not result in the app launching with the correct
3007     * action and category.  Instead, use this with
3008     * {@link #makeMainSelectorActivity(String, String)} to generate a main
3009     * Intent with this category in the selector.</p>
3010     */
3011    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
3012    public static final String CATEGORY_APP_MAPS = "android.intent.category.APP_MAPS";
3013
3014    /**
3015     * Used with {@link #ACTION_MAIN} to launch the messaging application.
3016     * The activity should be able to send and receive text messages.
3017     * <p>NOTE: This should not be used as the primary key of an Intent,
3018     * since it will not result in the app launching with the correct
3019     * action and category.  Instead, use this with
3020     * {@link #makeMainSelectorActivity(String, String)} to generate a main
3021     * Intent with this category in the selector.</p>
3022     */
3023    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
3024    public static final String CATEGORY_APP_MESSAGING = "android.intent.category.APP_MESSAGING";
3025
3026    /**
3027     * Used with {@link #ACTION_MAIN} to launch the music application.
3028     * The activity should be able to play, browse, or manipulate music files
3029     * stored on the device.
3030     * <p>NOTE: This should not be used as the primary key of an Intent,
3031     * since it will not result in the app launching with the correct
3032     * action and category.  Instead, use this with
3033     * {@link #makeMainSelectorActivity(String, String)} to generate a main
3034     * Intent with this category in the selector.</p>
3035     */
3036    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
3037    public static final String CATEGORY_APP_MUSIC = "android.intent.category.APP_MUSIC";
3038
3039    // ---------------------------------------------------------------------
3040    // ---------------------------------------------------------------------
3041    // Standard extra data keys.
3042
3043    /**
3044     * The initial data to place in a newly created record.  Use with
3045     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
3046     * fields as would be given to the underlying ContentProvider.insert()
3047     * call.
3048     */
3049    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
3050
3051    /**
3052     * A constant CharSequence that is associated with the Intent, used with
3053     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
3054     * this may be a styled CharSequence, so you must use
3055     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
3056     * retrieve it.
3057     */
3058    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
3059
3060    /**
3061     * A constant String that is associated with the Intent, used with
3062     * {@link #ACTION_SEND} to supply an alternative to {@link #EXTRA_TEXT}
3063     * as HTML formatted text.  Note that you <em>must</em> also supply
3064     * {@link #EXTRA_TEXT}.
3065     */
3066    public static final String EXTRA_HTML_TEXT = "android.intent.extra.HTML_TEXT";
3067
3068    /**
3069     * A content: URI holding a stream of data associated with the Intent,
3070     * used with {@link #ACTION_SEND} to supply the data being sent.
3071     */
3072    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
3073
3074    /**
3075     * A String[] holding e-mail addresses that should be delivered to.
3076     */
3077    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
3078
3079    /**
3080     * A String[] holding e-mail addresses that should be carbon copied.
3081     */
3082    public static final String EXTRA_CC       = "android.intent.extra.CC";
3083
3084    /**
3085     * A String[] holding e-mail addresses that should be blind carbon copied.
3086     */
3087    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
3088
3089    /**
3090     * A constant string holding the desired subject line of a message.
3091     */
3092    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
3093
3094    /**
3095     * An Intent describing the choices you would like shown with
3096     * {@link #ACTION_PICK_ACTIVITY}.
3097     */
3098    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
3099
3100    /**
3101     * A CharSequence dialog title to provide to the user when used with a
3102     * {@link #ACTION_CHOOSER}.
3103     */
3104    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
3105
3106    /**
3107     * A Parcelable[] of {@link Intent} or
3108     * {@link android.content.pm.LabeledIntent} objects as set with
3109     * {@link #putExtra(String, Parcelable[])} of additional activities to place
3110     * a the front of the list of choices, when shown to the user with a
3111     * {@link #ACTION_CHOOSER}.
3112     */
3113    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
3114
3115    /**
3116     * A Bundle forming a mapping of potential target package names to different extras Bundles
3117     * to add to the default intent extras in {@link #EXTRA_INTENT} when used with
3118     * {@link #ACTION_CHOOSER}. Each key should be a package name. The package need not
3119     * be currently installed on the device.
3120     *
3121     * <p>An application may choose to provide alternate extras for the case where a user
3122     * selects an activity from a predetermined set of target packages. If the activity
3123     * the user selects from the chooser belongs to a package with its package name as
3124     * a key in this bundle, the corresponding extras for that package will be merged with
3125     * the extras already present in the intent at {@link #EXTRA_INTENT}. If a replacement
3126     * extra has the same key as an extra already present in the intent it will overwrite
3127     * the extra from the intent.</p>
3128     *
3129     * <p><em>Examples:</em>
3130     * <ul>
3131     *     <li>An application may offer different {@link #EXTRA_TEXT} to an application
3132     *     when sharing with it via {@link #ACTION_SEND}, augmenting a link with additional query
3133     *     parameters for that target.</li>
3134     *     <li>An application may offer additional metadata for known targets of a given intent
3135     *     to pass along information only relevant to that target such as account or content
3136     *     identifiers already known to that application.</li>
3137     * </ul></p>
3138     */
3139    public static final String EXTRA_REPLACEMENT_EXTRAS =
3140            "android.intent.extra.REPLACEMENT_EXTRAS";
3141
3142    /**
3143     * A {@link android.view.KeyEvent} object containing the event that
3144     * triggered the creation of the Intent it is in.
3145     */
3146    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
3147
3148    /**
3149     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
3150     * before shutting down.
3151     *
3152     * {@hide}
3153     */
3154    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
3155
3156    /**
3157     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
3158     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
3159     * of restarting the application.
3160     */
3161    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
3162
3163    /**
3164     * A String holding the phone number originally entered in
3165     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
3166     * number to call in a {@link android.content.Intent#ACTION_CALL}.
3167     */
3168    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
3169
3170    /**
3171     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
3172     * intents to supply the uid the package had been assigned.  Also an optional
3173     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
3174     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
3175     * purpose.
3176     */
3177    public static final String EXTRA_UID = "android.intent.extra.UID";
3178
3179    /**
3180     * @hide String array of package names.
3181     */
3182    public static final String EXTRA_PACKAGES = "android.intent.extra.PACKAGES";
3183
3184    /**
3185     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
3186     * intents to indicate whether this represents a full uninstall (removing
3187     * both the code and its data) or a partial uninstall (leaving its data,
3188     * implying that this is an update).
3189     */
3190    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
3191
3192    /**
3193     * @hide
3194     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
3195     * intents to indicate that at this point the package has been removed for
3196     * all users on the device.
3197     */
3198    public static final String EXTRA_REMOVED_FOR_ALL_USERS
3199            = "android.intent.extra.REMOVED_FOR_ALL_USERS";
3200
3201    /**
3202     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
3203     * intents to indicate that this is a replacement of the package, so this
3204     * broadcast will immediately be followed by an add broadcast for a
3205     * different version of the same package.
3206     */
3207    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
3208
3209    /**
3210     * Used as an int extra field in {@link android.app.AlarmManager} intents
3211     * to tell the application being invoked how many pending alarms are being
3212     * delievered with the intent.  For one-shot alarms this will always be 1.
3213     * For recurring alarms, this might be greater than 1 if the device was
3214     * asleep or powered off at the time an earlier alarm would have been
3215     * delivered.
3216     */
3217    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
3218
3219    /**
3220     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
3221     * intents to request the dock state.  Possible values are
3222     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
3223     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
3224     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}, or
3225     * {@link android.content.Intent#EXTRA_DOCK_STATE_LE_DESK}, or
3226     * {@link android.content.Intent#EXTRA_DOCK_STATE_HE_DESK}.
3227     */
3228    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
3229
3230    /**
3231     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3232     * to represent that the phone is not in any dock.
3233     */
3234    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
3235
3236    /**
3237     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3238     * to represent that the phone is in a desk dock.
3239     */
3240    public static final int EXTRA_DOCK_STATE_DESK = 1;
3241
3242    /**
3243     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3244     * to represent that the phone is in a car dock.
3245     */
3246    public static final int EXTRA_DOCK_STATE_CAR = 2;
3247
3248    /**
3249     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3250     * to represent that the phone is in a analog (low end) dock.
3251     */
3252    public static final int EXTRA_DOCK_STATE_LE_DESK = 3;
3253
3254    /**
3255     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3256     * to represent that the phone is in a digital (high end) dock.
3257     */
3258    public static final int EXTRA_DOCK_STATE_HE_DESK = 4;
3259
3260    /**
3261     * Boolean that can be supplied as meta-data with a dock activity, to
3262     * indicate that the dock should take over the home key when it is active.
3263     */
3264    public static final String METADATA_DOCK_HOME = "android.dock_home";
3265
3266    /**
3267     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
3268     * the bug report.
3269     */
3270    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
3271
3272    /**
3273     * Used in the extra field in the remote intent. It's astring token passed with the
3274     * remote intent.
3275     */
3276    public static final String EXTRA_REMOTE_INTENT_TOKEN =
3277            "android.intent.extra.remote_intent_token";
3278
3279    /**
3280     * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
3281     * will contain only the first name in the list.
3282     */
3283    @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
3284            "android.intent.extra.changed_component_name";
3285
3286    /**
3287     * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED},
3288     * and contains a string array of all of the components that have changed.  If
3289     * the state of the overall package has changed, then it will contain an entry
3290     * with the package name itself.
3291     */
3292    public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
3293            "android.intent.extra.changed_component_name_list";
3294
3295    /**
3296     * This field is part of
3297     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
3298     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
3299     * and contains a string array of all of the components that have changed.
3300     */
3301    public static final String EXTRA_CHANGED_PACKAGE_LIST =
3302            "android.intent.extra.changed_package_list";
3303
3304    /**
3305     * This field is part of
3306     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
3307     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
3308     * and contains an integer array of uids of all of the components
3309     * that have changed.
3310     */
3311    public static final String EXTRA_CHANGED_UID_LIST =
3312            "android.intent.extra.changed_uid_list";
3313
3314    /**
3315     * @hide
3316     * Magic extra system code can use when binding, to give a label for
3317     * who it is that has bound to a service.  This is an integer giving
3318     * a framework string resource that can be displayed to the user.
3319     */
3320    public static final String EXTRA_CLIENT_LABEL =
3321            "android.intent.extra.client_label";
3322
3323    /**
3324     * @hide
3325     * Magic extra system code can use when binding, to give a PendingIntent object
3326     * that can be launched for the user to disable the system's use of this
3327     * service.
3328     */
3329    public static final String EXTRA_CLIENT_INTENT =
3330            "android.intent.extra.client_intent";
3331
3332    /**
3333     * Extra used to indicate that an intent should only return data that is on
3334     * the local device. This is a boolean extra; the default is false. If true,
3335     * an implementation should only allow the user to select data that is
3336     * already on the device, not requiring it be downloaded from a remote
3337     * service when opened.
3338     *
3339     * @see #ACTION_GET_CONTENT
3340     * @see #ACTION_OPEN_DOCUMENT
3341     * @see #ACTION_OPEN_DOCUMENT_TREE
3342     * @see #ACTION_CREATE_DOCUMENT
3343     */
3344    public static final String EXTRA_LOCAL_ONLY =
3345            "android.intent.extra.LOCAL_ONLY";
3346
3347    /**
3348     * Extra used to indicate that an intent can allow the user to select and
3349     * return multiple items. This is a boolean extra; the default is false. If
3350     * true, an implementation is allowed to present the user with a UI where
3351     * they can pick multiple items that are all returned to the caller. When
3352     * this happens, they should be returned as the {@link #getClipData()} part
3353     * of the result Intent.
3354     *
3355     * @see #ACTION_GET_CONTENT
3356     * @see #ACTION_OPEN_DOCUMENT
3357     */
3358    public static final String EXTRA_ALLOW_MULTIPLE =
3359            "android.intent.extra.ALLOW_MULTIPLE";
3360
3361    /**
3362     * The integer userHandle carried with broadcast intents related to addition, removal and
3363     * switching of users and managed profiles - {@link #ACTION_USER_ADDED},
3364     * {@link #ACTION_USER_REMOVED} and {@link #ACTION_USER_SWITCHED}.
3365     *
3366     * @hide
3367     */
3368    public static final String EXTRA_USER_HANDLE =
3369            "android.intent.extra.user_handle";
3370
3371    /**
3372     * The UserHandle carried with broadcasts intents related to addition and removal of managed
3373     * profiles - {@link #ACTION_MANAGED_PROFILE_ADDED} and {@link #ACTION_MANAGED_PROFILE_REMOVED}.
3374     */
3375    public static final String EXTRA_USER =
3376            "android.intent.extra.USER";
3377
3378    /**
3379     * Extra used in the response from a BroadcastReceiver that handles
3380     * {@link #ACTION_GET_RESTRICTION_ENTRIES}. The type of the extra is
3381     * <code>ArrayList&lt;RestrictionEntry&gt;</code>.
3382     */
3383    public static final String EXTRA_RESTRICTIONS_LIST = "android.intent.extra.restrictions_list";
3384
3385    /**
3386     * Extra sent in the intent to the BroadcastReceiver that handles
3387     * {@link #ACTION_GET_RESTRICTION_ENTRIES}. The type of the extra is a Bundle containing
3388     * the restrictions as key/value pairs.
3389     */
3390    public static final String EXTRA_RESTRICTIONS_BUNDLE =
3391            "android.intent.extra.restrictions_bundle";
3392
3393    /**
3394     * Extra used in the response from a BroadcastReceiver that handles
3395     * {@link #ACTION_GET_RESTRICTION_ENTRIES}.
3396     */
3397    public static final String EXTRA_RESTRICTIONS_INTENT =
3398            "android.intent.extra.restrictions_intent";
3399
3400    /**
3401     * Extra used to communicate a set of acceptable MIME types. The type of the
3402     * extra is {@code String[]}. Values may be a combination of concrete MIME
3403     * types (such as "image/png") and/or partial MIME types (such as
3404     * "audio/*").
3405     *
3406     * @see #ACTION_GET_CONTENT
3407     * @see #ACTION_OPEN_DOCUMENT
3408     */
3409    public static final String EXTRA_MIME_TYPES = "android.intent.extra.MIME_TYPES";
3410
3411    /**
3412     * Optional extra for {@link #ACTION_SHUTDOWN} that allows the sender to qualify that
3413     * this shutdown is only for the user space of the system, not a complete shutdown.
3414     * When this is true, hardware devices can use this information to determine that
3415     * they shouldn't do a complete shutdown of their device since this is not a
3416     * complete shutdown down to the kernel, but only user space restarting.
3417     * The default if not supplied is false.
3418     */
3419    public static final String EXTRA_SHUTDOWN_USERSPACE_ONLY
3420            = "android.intent.extra.SHUTDOWN_USERSPACE_ONLY";
3421
3422    /**
3423     * Optional boolean extra for {@link #ACTION_TIME_CHANGED} that indicates the
3424     * user has set their time format preferences to the 24 hour format.
3425     *
3426     * @hide for internal use only.
3427     */
3428    public static final String EXTRA_TIME_PREF_24_HOUR_FORMAT =
3429            "android.intent.extra.TIME_PREF_24_HOUR_FORMAT";
3430
3431    /** {@hide} */
3432    public static final String EXTRA_REASON = "android.intent.extra.REASON";
3433
3434    // ---------------------------------------------------------------------
3435    // ---------------------------------------------------------------------
3436    // Intent flags (see mFlags variable).
3437
3438    /** @hide */
3439    @IntDef(flag = true, value = {
3440            FLAG_GRANT_READ_URI_PERMISSION, FLAG_GRANT_WRITE_URI_PERMISSION,
3441            FLAG_GRANT_PERSISTABLE_URI_PERMISSION, FLAG_GRANT_PREFIX_URI_PERMISSION })
3442    @Retention(RetentionPolicy.SOURCE)
3443    public @interface GrantUriMode {}
3444
3445    /** @hide */
3446    @IntDef(flag = true, value = {
3447            FLAG_GRANT_READ_URI_PERMISSION, FLAG_GRANT_WRITE_URI_PERMISSION })
3448    @Retention(RetentionPolicy.SOURCE)
3449    public @interface AccessUriMode {}
3450
3451    /**
3452     * Test if given mode flags specify an access mode, which must be at least
3453     * read and/or write.
3454     *
3455     * @hide
3456     */
3457    public static boolean isAccessUriMode(int modeFlags) {
3458        return (modeFlags & (Intent.FLAG_GRANT_READ_URI_PERMISSION
3459                | Intent.FLAG_GRANT_WRITE_URI_PERMISSION)) != 0;
3460    }
3461
3462    /**
3463     * If set, the recipient of this Intent will be granted permission to
3464     * perform read operations on the URI in the Intent's data and any URIs
3465     * specified in its ClipData.  When applying to an Intent's ClipData,
3466     * all URIs as well as recursive traversals through data or other ClipData
3467     * in Intent items will be granted; only the grant flags of the top-level
3468     * Intent are used.
3469     */
3470    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
3471    /**
3472     * If set, the recipient of this Intent will be granted permission to
3473     * perform write operations on the URI in the Intent's data and any URIs
3474     * specified in its ClipData.  When applying to an Intent's ClipData,
3475     * all URIs as well as recursive traversals through data or other ClipData
3476     * in Intent items will be granted; only the grant flags of the top-level
3477     * Intent are used.
3478     */
3479    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
3480    /**
3481     * Can be set by the caller to indicate that this Intent is coming from
3482     * a background operation, not from direct user interaction.
3483     */
3484    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
3485    /**
3486     * A flag you can enable for debugging: when set, log messages will be
3487     * printed during the resolution of this intent to show you what has
3488     * been found to create the final resolved list.
3489     */
3490    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
3491    /**
3492     * If set, this intent will not match any components in packages that
3493     * are currently stopped.  If this is not set, then the default behavior
3494     * is to include such applications in the result.
3495     */
3496    public static final int FLAG_EXCLUDE_STOPPED_PACKAGES = 0x00000010;
3497    /**
3498     * If set, this intent will always match any components in packages that
3499     * are currently stopped.  This is the default behavior when
3500     * {@link #FLAG_EXCLUDE_STOPPED_PACKAGES} is not set.  If both of these
3501     * flags are set, this one wins (it allows overriding of exclude for
3502     * places where the framework may automatically set the exclude flag).
3503     */
3504    public static final int FLAG_INCLUDE_STOPPED_PACKAGES = 0x00000020;
3505
3506    /**
3507     * When combined with {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or
3508     * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, the URI permission grant can be
3509     * persisted across device reboots until explicitly revoked with
3510     * {@link Context#revokeUriPermission(Uri, int)}. This flag only offers the
3511     * grant for possible persisting; the receiving application must call
3512     * {@link ContentResolver#takePersistableUriPermission(Uri, int)} to
3513     * actually persist.
3514     *
3515     * @see ContentResolver#takePersistableUriPermission(Uri, int)
3516     * @see ContentResolver#releasePersistableUriPermission(Uri, int)
3517     * @see ContentResolver#getPersistedUriPermissions()
3518     * @see ContentResolver#getOutgoingPersistedUriPermissions()
3519     */
3520    public static final int FLAG_GRANT_PERSISTABLE_URI_PERMISSION = 0x00000040;
3521
3522    /**
3523     * When combined with {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or
3524     * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, the URI permission grant
3525     * applies to any URI that is a prefix match against the original granted
3526     * URI. (Without this flag, the URI must match exactly for access to be
3527     * granted.) Another URI is considered a prefix match only when scheme,
3528     * authority, and all path segments defined by the prefix are an exact
3529     * match.
3530     */
3531    public static final int FLAG_GRANT_PREFIX_URI_PERMISSION = 0x00000080;
3532
3533    /**
3534     * If set, the new activity is not kept in the history stack.  As soon as
3535     * the user navigates away from it, the activity is finished.  This may also
3536     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
3537     * noHistory} attribute.
3538     */
3539    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
3540    /**
3541     * If set, the activity will not be launched if it is already running
3542     * at the top of the history stack.
3543     */
3544    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
3545    /**
3546     * If set, this activity will become the start of a new task on this
3547     * history stack.  A task (from the activity that started it to the
3548     * next task activity) defines an atomic group of activities that the
3549     * user can move to.  Tasks can be moved to the foreground and background;
3550     * all of the activities inside of a particular task always remain in
3551     * the same order.  See
3552     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
3553     * Stack</a> for more information about tasks.
3554     *
3555     * <p>This flag is generally used by activities that want
3556     * to present a "launcher" style behavior: they give the user a list of
3557     * separate things that can be done, which otherwise run completely
3558     * independently of the activity launching them.
3559     *
3560     * <p>When using this flag, if a task is already running for the activity
3561     * you are now starting, then a new activity will not be started; instead,
3562     * the current task will simply be brought to the front of the screen with
3563     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
3564     * to disable this behavior.
3565     *
3566     * <p>This flag can not be used when the caller is requesting a result from
3567     * the activity being launched.
3568     */
3569    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
3570    /**
3571     * This flag is used to create a new task and launch an activity into it.
3572     * This flag is always paired with either {@link #FLAG_ACTIVITY_NEW_DOCUMENT}
3573     * or {@link #FLAG_ACTIVITY_NEW_TASK}. In both cases these flags alone would
3574     * search through existing tasks for ones matching this Intent. Only if no such
3575     * task is found would a new task be created. When paired with
3576     * FLAG_ACTIVITY_MULTIPLE_TASK both of these behaviors are modified to skip
3577     * the search for a matching task and unconditionally start a new task.
3578     *
3579     * <strong>When used with {@link #FLAG_ACTIVITY_NEW_TASK} do not use this
3580     * flag unless you are implementing your own
3581     * top-level application launcher.</strong>  Used in conjunction with
3582     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
3583     * behavior of bringing an existing task to the foreground.  When set,
3584     * a new task is <em>always</em> started to host the Activity for the
3585     * Intent, regardless of whether there is already an existing task running
3586     * the same thing.
3587     *
3588     * <p><strong>Because the default system does not include graphical task management,
3589     * you should not use this flag unless you provide some way for a user to
3590     * return back to the tasks you have launched.</strong>
3591     *
3592     * See {@link #FLAG_ACTIVITY_NEW_DOCUMENT} for details of this flag's use for
3593     * creating new document tasks.
3594     *
3595     * <p>This flag is ignored if one of {@link #FLAG_ACTIVITY_NEW_TASK} or
3596     * {@link #FLAG_ACTIVITY_NEW_DOCUMENT} is not also set.
3597     *
3598     * <p>See
3599     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
3600     * Stack</a> for more information about tasks.
3601     *
3602     * @see #FLAG_ACTIVITY_NEW_DOCUMENT
3603     * @see #FLAG_ACTIVITY_NEW_TASK
3604     */
3605    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
3606    /**
3607     * If set, and the activity being launched is already running in the
3608     * current task, then instead of launching a new instance of that activity,
3609     * all of the other activities on top of it will be closed and this Intent
3610     * will be delivered to the (now on top) old activity as a new Intent.
3611     *
3612     * <p>For example, consider a task consisting of the activities: A, B, C, D.
3613     * If D calls startActivity() with an Intent that resolves to the component
3614     * of activity B, then C and D will be finished and B receive the given
3615     * Intent, resulting in the stack now being: A, B.
3616     *
3617     * <p>The currently running instance of activity B in the above example will
3618     * either receive the new intent you are starting here in its
3619     * onNewIntent() method, or be itself finished and restarted with the
3620     * new intent.  If it has declared its launch mode to be "multiple" (the
3621     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
3622     * the same intent, then it will be finished and re-created; for all other
3623     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
3624     * Intent will be delivered to the current instance's onNewIntent().
3625     *
3626     * <p>This launch mode can also be used to good effect in conjunction with
3627     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
3628     * of a task, it will bring any currently running instance of that task
3629     * to the foreground, and then clear it to its root state.  This is
3630     * especially useful, for example, when launching an activity from the
3631     * notification manager.
3632     *
3633     * <p>See
3634     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
3635     * Stack</a> for more information about tasks.
3636     */
3637    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
3638    /**
3639     * If set and this intent is being used to launch a new activity from an
3640     * existing one, then the reply target of the existing activity will be
3641     * transfered to the new activity.  This way the new activity can call
3642     * {@link android.app.Activity#setResult} and have that result sent back to
3643     * the reply target of the original activity.
3644     */
3645    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
3646    /**
3647     * If set and this intent is being used to launch a new activity from an
3648     * existing one, the current activity will not be counted as the top
3649     * activity for deciding whether the new intent should be delivered to
3650     * the top instead of starting a new one.  The previous activity will
3651     * be used as the top, with the assumption being that the current activity
3652     * will finish itself immediately.
3653     */
3654    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
3655    /**
3656     * If set, the new activity is not kept in the list of recently launched
3657     * activities.
3658     */
3659    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
3660    /**
3661     * This flag is not normally set by application code, but set for you by
3662     * the system as described in the
3663     * {@link android.R.styleable#AndroidManifestActivity_launchMode
3664     * launchMode} documentation for the singleTask mode.
3665     */
3666    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
3667    /**
3668     * If set, and this activity is either being started in a new task or
3669     * bringing to the top an existing task, then it will be launched as
3670     * the front door of the task.  This will result in the application of
3671     * any affinities needed to have that task in the proper state (either
3672     * moving activities to or from it), or simply resetting that task to
3673     * its initial state if needed.
3674     */
3675    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
3676    /**
3677     * This flag is not normally set by application code, but set for you by
3678     * the system if this activity is being launched from history
3679     * (longpress home key).
3680     */
3681    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
3682    /**
3683     * @deprecated As of API 21 this performs identically to
3684     * {@link #FLAG_ACTIVITY_NEW_DOCUMENT} which should be used instead of this.
3685     */
3686    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
3687    /**
3688     * This flag is used to open a document into a new task rooted at the activity launched
3689     * by this Intent. Through the use of this flag, or its equivalent attribute,
3690     * {@link android.R.attr#documentLaunchMode} multiple instances of the same activity
3691     * containing different douments will appear in the recent tasks list.
3692     *
3693     * <p>The use of the activity attribute form of this,
3694     * {@link android.R.attr#documentLaunchMode}, is
3695     * preferred over the Intent flag described here. The attribute form allows the
3696     * Activity to specify multiple document behavior for all launchers of the Activity
3697     * whereas using this flag requires each Intent that launches the Activity to specify it.
3698     *
3699     * <p>Note that the default semantics of this flag w.r.t. whether the recents entry for
3700     * it is kept after the activity is finished is different than the use of
3701     * {@link #FLAG_ACTIVITY_NEW_TASK} and {@link android.R.attr#documentLaunchMode} -- if
3702     * this flag is being used to create a new recents entry, then by default that entry
3703     * will be removed once the activity is finished.  You can modify this behavior with
3704     * {@link #FLAG_ACTIVITY_RETAIN_IN_RECENTS}.
3705     *
3706     * <p>FLAG_ACTIVITY_NEW_DOCUMENT may be used in conjunction with {@link
3707     * #FLAG_ACTIVITY_MULTIPLE_TASK}. When used alone it is the
3708     * equivalent of the Activity manifest specifying {@link
3709     * android.R.attr#documentLaunchMode}="intoExisting". When used with
3710     * FLAG_ACTIVITY_MULTIPLE_TASK it is the equivalent of the Activity manifest specifying
3711     * {@link android.R.attr#documentLaunchMode}="always".
3712     *
3713     * Refer to {@link android.R.attr#documentLaunchMode} for more information.
3714     *
3715     * @see android.R.attr#documentLaunchMode
3716     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
3717     */
3718    public static final int FLAG_ACTIVITY_NEW_DOCUMENT = FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET;
3719    /**
3720     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
3721     * callback from occurring on the current frontmost activity before it is
3722     * paused as the newly-started activity is brought to the front.
3723     *
3724     * <p>Typically, an activity can rely on that callback to indicate that an
3725     * explicit user action has caused their activity to be moved out of the
3726     * foreground. The callback marks an appropriate point in the activity's
3727     * lifecycle for it to dismiss any notifications that it intends to display
3728     * "until the user has seen them," such as a blinking LED.
3729     *
3730     * <p>If an activity is ever started via any non-user-driven events such as
3731     * phone-call receipt or an alarm handler, this flag should be passed to {@link
3732     * Context#startActivity Context.startActivity}, ensuring that the pausing
3733     * activity does not think the user has acknowledged its notification.
3734     */
3735    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
3736    /**
3737     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3738     * this flag will cause the launched activity to be brought to the front of its
3739     * task's history stack if it is already running.
3740     *
3741     * <p>For example, consider a task consisting of four activities: A, B, C, D.
3742     * If D calls startActivity() with an Intent that resolves to the component
3743     * of activity B, then B will be brought to the front of the history stack,
3744     * with this resulting order:  A, C, D, B.
3745     *
3746     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
3747     * specified.
3748     */
3749    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
3750    /**
3751     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3752     * this flag will prevent the system from applying an activity transition
3753     * animation to go to the next activity state.  This doesn't mean an
3754     * animation will never run -- if another activity change happens that doesn't
3755     * specify this flag before the activity started here is displayed, then
3756     * that transition will be used.  This flag can be put to good use
3757     * when you are going to do a series of activity operations but the
3758     * animation seen by the user shouldn't be driven by the first activity
3759     * change but rather a later one.
3760     */
3761    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
3762    /**
3763     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3764     * this flag will cause any existing task that would be associated with the
3765     * activity to be cleared before the activity is started.  That is, the activity
3766     * becomes the new root of an otherwise empty task, and any old activities
3767     * are finished.  This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
3768     */
3769    public static final int FLAG_ACTIVITY_CLEAR_TASK = 0X00008000;
3770    /**
3771     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3772     * this flag will cause a newly launching task to be placed on top of the current
3773     * home activity task (if there is one).  That is, pressing back from the task
3774     * will always return the user to home even if that was not the last activity they
3775     * saw.   This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
3776     */
3777    public static final int FLAG_ACTIVITY_TASK_ON_HOME = 0X00004000;
3778    /**
3779     * By default a document created by {@link #FLAG_ACTIVITY_NEW_DOCUMENT} will
3780     * have its entry in recent tasks removed when the user closes it (with back
3781     * or however else it may finish()). If you would like to instead allow the
3782     * document to be kept in recents so that it can be re-launched, you can use
3783     * this flag. When set and the task's activity is finished, the recents
3784     * entry will remain in the interface for the user to re-launch it, like a
3785     * recents entry for a top-level application.
3786     * <p>
3787     * The receiving activity can override this request with
3788     * {@link android.R.attr#autoRemoveFromRecents} or by explcitly calling
3789     * {@link android.app.Activity#finishAndRemoveTask()
3790     * Activity.finishAndRemoveTask()}.
3791     */
3792    public static final int FLAG_ACTIVITY_RETAIN_IN_RECENTS = 0x00002000;
3793
3794    /**
3795     * If set, when sending a broadcast only registered receivers will be
3796     * called -- no BroadcastReceiver components will be launched.
3797     */
3798    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
3799    /**
3800     * If set, when sending a broadcast the new broadcast will replace
3801     * any existing pending broadcast that matches it.  Matching is defined
3802     * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning
3803     * true for the intents of the two broadcasts.  When a match is found,
3804     * the new broadcast (and receivers associated with it) will replace the
3805     * existing one in the pending broadcast list, remaining at the same
3806     * position in the list.
3807     *
3808     * <p>This flag is most typically used with sticky broadcasts, which
3809     * only care about delivering the most recent values of the broadcast
3810     * to their receivers.
3811     */
3812    public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
3813    /**
3814     * If set, when sending a broadcast the recipient is allowed to run at
3815     * foreground priority, with a shorter timeout interval.  During normal
3816     * broadcasts the receivers are not automatically hoisted out of the
3817     * background priority class.
3818     */
3819    public static final int FLAG_RECEIVER_FOREGROUND = 0x10000000;
3820    /**
3821     * If this is an ordered broadcast, don't allow receivers to abort the broadcast.
3822     * They can still propagate results through to later receivers, but they can not prevent
3823     * later receivers from seeing the broadcast.
3824     */
3825    public static final int FLAG_RECEIVER_NO_ABORT = 0x08000000;
3826    /**
3827     * If set, when sending a broadcast <i>before boot has completed</i> only
3828     * registered receivers will be called -- no BroadcastReceiver components
3829     * will be launched.  Sticky intent state will be recorded properly even
3830     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
3831     * is specified in the broadcast intent, this flag is unnecessary.
3832     *
3833     * <p>This flag is only for use by system sevices as a convenience to
3834     * avoid having to implement a more complex mechanism around detection
3835     * of boot completion.
3836     *
3837     * @hide
3838     */
3839    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x04000000;
3840    /**
3841     * Set when this broadcast is for a boot upgrade, a special mode that
3842     * allows the broadcast to be sent before the system is ready and launches
3843     * the app process with no providers running in it.
3844     * @hide
3845     */
3846    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x02000000;
3847
3848    /**
3849     * @hide Flags that can't be changed with PendingIntent.
3850     */
3851    public static final int IMMUTABLE_FLAGS = FLAG_GRANT_READ_URI_PERMISSION
3852            | FLAG_GRANT_WRITE_URI_PERMISSION | FLAG_GRANT_PERSISTABLE_URI_PERMISSION
3853            | FLAG_GRANT_PREFIX_URI_PERMISSION;
3854
3855    // ---------------------------------------------------------------------
3856    // ---------------------------------------------------------------------
3857    // toUri() and parseUri() options.
3858
3859    /**
3860     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
3861     * always has the "intent:" scheme.  This syntax can be used when you want
3862     * to later disambiguate between URIs that are intended to describe an
3863     * Intent vs. all others that should be treated as raw URIs.  When used
3864     * with {@link #parseUri}, any other scheme will result in a generic
3865     * VIEW action for that raw URI.
3866     */
3867    public static final int URI_INTENT_SCHEME = 1<<0;
3868
3869    // ---------------------------------------------------------------------
3870
3871    private String mAction;
3872    private Uri mData;
3873    private String mType;
3874    private String mPackage;
3875    private ComponentName mComponent;
3876    private int mFlags;
3877    private ArraySet<String> mCategories;
3878    private Bundle mExtras;
3879    private Rect mSourceBounds;
3880    private Intent mSelector;
3881    private ClipData mClipData;
3882    private int mContentUserHint = UserHandle.USER_CURRENT;
3883
3884    // ---------------------------------------------------------------------
3885
3886    /**
3887     * Create an empty intent.
3888     */
3889    public Intent() {
3890    }
3891
3892    /**
3893     * Copy constructor.
3894     */
3895    public Intent(Intent o) {
3896        this.mAction = o.mAction;
3897        this.mData = o.mData;
3898        this.mType = o.mType;
3899        this.mPackage = o.mPackage;
3900        this.mComponent = o.mComponent;
3901        this.mFlags = o.mFlags;
3902        this.mContentUserHint = o.mContentUserHint;
3903        if (o.mCategories != null) {
3904            this.mCategories = new ArraySet<String>(o.mCategories);
3905        }
3906        if (o.mExtras != null) {
3907            this.mExtras = new Bundle(o.mExtras);
3908        }
3909        if (o.mSourceBounds != null) {
3910            this.mSourceBounds = new Rect(o.mSourceBounds);
3911        }
3912        if (o.mSelector != null) {
3913            this.mSelector = new Intent(o.mSelector);
3914        }
3915        if (o.mClipData != null) {
3916            this.mClipData = new ClipData(o.mClipData);
3917        }
3918    }
3919
3920    @Override
3921    public Object clone() {
3922        return new Intent(this);
3923    }
3924
3925    private Intent(Intent o, boolean all) {
3926        this.mAction = o.mAction;
3927        this.mData = o.mData;
3928        this.mType = o.mType;
3929        this.mPackage = o.mPackage;
3930        this.mComponent = o.mComponent;
3931        if (o.mCategories != null) {
3932            this.mCategories = new ArraySet<String>(o.mCategories);
3933        }
3934    }
3935
3936    /**
3937     * Make a clone of only the parts of the Intent that are relevant for
3938     * filter matching: the action, data, type, component, and categories.
3939     */
3940    public Intent cloneFilter() {
3941        return new Intent(this, false);
3942    }
3943
3944    /**
3945     * Create an intent with a given action.  All other fields (data, type,
3946     * class) are null.  Note that the action <em>must</em> be in a
3947     * namespace because Intents are used globally in the system -- for
3948     * example the system VIEW action is android.intent.action.VIEW; an
3949     * application's custom action would be something like
3950     * com.google.app.myapp.CUSTOM_ACTION.
3951     *
3952     * @param action The Intent action, such as ACTION_VIEW.
3953     */
3954    public Intent(String action) {
3955        setAction(action);
3956    }
3957
3958    /**
3959     * Create an intent with a given action and for a given data url.  Note
3960     * that the action <em>must</em> be in a namespace because Intents are
3961     * used globally in the system -- for example the system VIEW action is
3962     * android.intent.action.VIEW; an application's custom action would be
3963     * something like com.google.app.myapp.CUSTOM_ACTION.
3964     *
3965     * <p><em>Note: scheme and host name matching in the Android framework is
3966     * case-sensitive, unlike the formal RFC.  As a result,
3967     * you should always ensure that you write your Uri with these elements
3968     * using lower case letters, and normalize any Uris you receive from
3969     * outside of Android to ensure the scheme and host is lower case.</em></p>
3970     *
3971     * @param action The Intent action, such as ACTION_VIEW.
3972     * @param uri The Intent data URI.
3973     */
3974    public Intent(String action, Uri uri) {
3975        setAction(action);
3976        mData = uri;
3977    }
3978
3979    /**
3980     * Create an intent for a specific component.  All other fields (action, data,
3981     * type, class) are null, though they can be modified later with explicit
3982     * calls.  This provides a convenient way to create an intent that is
3983     * intended to execute a hard-coded class name, rather than relying on the
3984     * system to find an appropriate class for you; see {@link #setComponent}
3985     * for more information on the repercussions of this.
3986     *
3987     * @param packageContext A Context of the application package implementing
3988     * this class.
3989     * @param cls The component class that is to be used for the intent.
3990     *
3991     * @see #setClass
3992     * @see #setComponent
3993     * @see #Intent(String, android.net.Uri , Context, Class)
3994     */
3995    public Intent(Context packageContext, Class<?> cls) {
3996        mComponent = new ComponentName(packageContext, cls);
3997    }
3998
3999    /**
4000     * Create an intent for a specific component with a specified action and data.
4001     * This is equivalent to using {@link #Intent(String, android.net.Uri)} to
4002     * construct the Intent and then calling {@link #setClass} to set its
4003     * class.
4004     *
4005     * <p><em>Note: scheme and host name matching in the Android framework is
4006     * case-sensitive, unlike the formal RFC.  As a result,
4007     * you should always ensure that you write your Uri with these elements
4008     * using lower case letters, and normalize any Uris you receive from
4009     * outside of Android to ensure the scheme and host is lower case.</em></p>
4010     *
4011     * @param action The Intent action, such as ACTION_VIEW.
4012     * @param uri The Intent data URI.
4013     * @param packageContext A Context of the application package implementing
4014     * this class.
4015     * @param cls The component class that is to be used for the intent.
4016     *
4017     * @see #Intent(String, android.net.Uri)
4018     * @see #Intent(Context, Class)
4019     * @see #setClass
4020     * @see #setComponent
4021     */
4022    public Intent(String action, Uri uri,
4023            Context packageContext, Class<?> cls) {
4024        setAction(action);
4025        mData = uri;
4026        mComponent = new ComponentName(packageContext, cls);
4027    }
4028
4029    /**
4030     * Create an intent to launch the main (root) activity of a task.  This
4031     * is the Intent that is started when the application's is launched from
4032     * Home.  For anything else that wants to launch an application in the
4033     * same way, it is important that they use an Intent structured the same
4034     * way, and can use this function to ensure this is the case.
4035     *
4036     * <p>The returned Intent has the given Activity component as its explicit
4037     * component, {@link #ACTION_MAIN} as its action, and includes the
4038     * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
4039     * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
4040     * to do that through {@link #addFlags(int)} on the returned Intent.
4041     *
4042     * @param mainActivity The main activity component that this Intent will
4043     * launch.
4044     * @return Returns a newly created Intent that can be used to launch the
4045     * activity as a main application entry.
4046     *
4047     * @see #setClass
4048     * @see #setComponent
4049     */
4050    public static Intent makeMainActivity(ComponentName mainActivity) {
4051        Intent intent = new Intent(ACTION_MAIN);
4052        intent.setComponent(mainActivity);
4053        intent.addCategory(CATEGORY_LAUNCHER);
4054        return intent;
4055    }
4056
4057    /**
4058     * Make an Intent for the main activity of an application, without
4059     * specifying a specific activity to run but giving a selector to find
4060     * the activity.  This results in a final Intent that is structured
4061     * the same as when the application is launched from
4062     * Home.  For anything else that wants to launch an application in the
4063     * same way, it is important that they use an Intent structured the same
4064     * way, and can use this function to ensure this is the case.
4065     *
4066     * <p>The returned Intent has {@link #ACTION_MAIN} as its action, and includes the
4067     * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
4068     * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
4069     * to do that through {@link #addFlags(int)} on the returned Intent.
4070     *
4071     * @param selectorAction The action name of the Intent's selector.
4072     * @param selectorCategory The name of a category to add to the Intent's
4073     * selector.
4074     * @return Returns a newly created Intent that can be used to launch the
4075     * activity as a main application entry.
4076     *
4077     * @see #setSelector(Intent)
4078     */
4079    public static Intent makeMainSelectorActivity(String selectorAction,
4080            String selectorCategory) {
4081        Intent intent = new Intent(ACTION_MAIN);
4082        intent.addCategory(CATEGORY_LAUNCHER);
4083        Intent selector = new Intent();
4084        selector.setAction(selectorAction);
4085        selector.addCategory(selectorCategory);
4086        intent.setSelector(selector);
4087        return intent;
4088    }
4089
4090    /**
4091     * Make an Intent that can be used to re-launch an application's task
4092     * in its base state.  This is like {@link #makeMainActivity(ComponentName)},
4093     * but also sets the flags {@link #FLAG_ACTIVITY_NEW_TASK} and
4094     * {@link #FLAG_ACTIVITY_CLEAR_TASK}.
4095     *
4096     * @param mainActivity The activity component that is the root of the
4097     * task; this is the activity that has been published in the application's
4098     * manifest as the main launcher icon.
4099     *
4100     * @return Returns a newly created Intent that can be used to relaunch the
4101     * activity's task in its root state.
4102     */
4103    public static Intent makeRestartActivityTask(ComponentName mainActivity) {
4104        Intent intent = makeMainActivity(mainActivity);
4105        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
4106                | Intent.FLAG_ACTIVITY_CLEAR_TASK);
4107        return intent;
4108    }
4109
4110    /**
4111     * Call {@link #parseUri} with 0 flags.
4112     * @deprecated Use {@link #parseUri} instead.
4113     */
4114    @Deprecated
4115    public static Intent getIntent(String uri) throws URISyntaxException {
4116        return parseUri(uri, 0);
4117    }
4118
4119    /**
4120     * Create an intent from a URI.  This URI may encode the action,
4121     * category, and other intent fields, if it was returned by
4122     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
4123     * will be the entire URI and its action will be ACTION_VIEW.
4124     *
4125     * <p>The URI given here must not be relative -- that is, it must include
4126     * the scheme and full path.
4127     *
4128     * @param uri The URI to turn into an Intent.
4129     * @param flags Additional processing flags.  Either 0 or
4130     * {@link #URI_INTENT_SCHEME}.
4131     *
4132     * @return Intent The newly created Intent object.
4133     *
4134     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
4135     * it bad (as parsed by the Uri class) or the Intent data within the
4136     * URI is invalid.
4137     *
4138     * @see #toUri
4139     */
4140    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
4141        int i = 0;
4142        try {
4143            // Validate intent scheme for if requested.
4144            if ((flags&URI_INTENT_SCHEME) != 0) {
4145                if (!uri.startsWith("intent:")) {
4146                    Intent intent = new Intent(ACTION_VIEW);
4147                    try {
4148                        intent.setData(Uri.parse(uri));
4149                    } catch (IllegalArgumentException e) {
4150                        throw new URISyntaxException(uri, e.getMessage());
4151                    }
4152                    return intent;
4153                }
4154            }
4155
4156            // simple case
4157            i = uri.lastIndexOf("#");
4158            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
4159
4160            // old format Intent URI
4161            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
4162
4163            // new format
4164            Intent intent = new Intent(ACTION_VIEW);
4165            Intent baseIntent = intent;
4166
4167            // fetch data part, if present
4168            String data = i >= 0 ? uri.substring(0, i) : null;
4169            String scheme = null;
4170            i += "#Intent;".length();
4171
4172            // loop over contents of Intent, all name=value;
4173            while (!uri.startsWith("end", i)) {
4174                int eq = uri.indexOf('=', i);
4175                if (eq < 0) eq = i-1;
4176                int semi = uri.indexOf(';', i);
4177                String value = eq < semi ? Uri.decode(uri.substring(eq + 1, semi)) : "";
4178
4179                // action
4180                if (uri.startsWith("action=", i)) {
4181                    intent.setAction(value);
4182                }
4183
4184                // categories
4185                else if (uri.startsWith("category=", i)) {
4186                    intent.addCategory(value);
4187                }
4188
4189                // type
4190                else if (uri.startsWith("type=", i)) {
4191                    intent.mType = value;
4192                }
4193
4194                // launch flags
4195                else if (uri.startsWith("launchFlags=", i)) {
4196                    intent.mFlags = Integer.decode(value).intValue();
4197                }
4198
4199                // package
4200                else if (uri.startsWith("package=", i)) {
4201                    intent.mPackage = value;
4202                }
4203
4204                // component
4205                else if (uri.startsWith("component=", i)) {
4206                    intent.mComponent = ComponentName.unflattenFromString(value);
4207                }
4208
4209                // scheme
4210                else if (uri.startsWith("scheme=", i)) {
4211                    scheme = value;
4212                }
4213
4214                // source bounds
4215                else if (uri.startsWith("sourceBounds=", i)) {
4216                    intent.mSourceBounds = Rect.unflattenFromString(value);
4217                }
4218
4219                // selector
4220                else if (semi == (i+3) && uri.startsWith("SEL", i)) {
4221                    intent = new Intent();
4222                }
4223
4224                // extra
4225                else {
4226                    String key = Uri.decode(uri.substring(i + 2, eq));
4227                    // create Bundle if it doesn't already exist
4228                    if (intent.mExtras == null) intent.mExtras = new Bundle();
4229                    Bundle b = intent.mExtras;
4230                    // add EXTRA
4231                    if      (uri.startsWith("S.", i)) b.putString(key, value);
4232                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
4233                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
4234                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
4235                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
4236                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
4237                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
4238                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
4239                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
4240                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
4241                }
4242
4243                // move to the next item
4244                i = semi + 1;
4245            }
4246
4247            if (intent != baseIntent) {
4248                // The Intent had a selector; fix it up.
4249                baseIntent.setSelector(intent);
4250                intent = baseIntent;
4251            }
4252
4253            if (data != null) {
4254                if (data.startsWith("intent:")) {
4255                    data = data.substring(7);
4256                    if (scheme != null) {
4257                        data = scheme + ':' + data;
4258                    }
4259                }
4260
4261                if (data.length() > 0) {
4262                    try {
4263                        intent.mData = Uri.parse(data);
4264                    } catch (IllegalArgumentException e) {
4265                        throw new URISyntaxException(uri, e.getMessage());
4266                    }
4267                }
4268            }
4269
4270            return intent;
4271
4272        } catch (IndexOutOfBoundsException e) {
4273            throw new URISyntaxException(uri, "illegal Intent URI format", i);
4274        }
4275    }
4276
4277    public static Intent getIntentOld(String uri) throws URISyntaxException {
4278        Intent intent;
4279
4280        int i = uri.lastIndexOf('#');
4281        if (i >= 0) {
4282            String action = null;
4283            final int intentFragmentStart = i;
4284            boolean isIntentFragment = false;
4285
4286            i++;
4287
4288            if (uri.regionMatches(i, "action(", 0, 7)) {
4289                isIntentFragment = true;
4290                i += 7;
4291                int j = uri.indexOf(')', i);
4292                action = uri.substring(i, j);
4293                i = j + 1;
4294            }
4295
4296            intent = new Intent(action);
4297
4298            if (uri.regionMatches(i, "categories(", 0, 11)) {
4299                isIntentFragment = true;
4300                i += 11;
4301                int j = uri.indexOf(')', i);
4302                while (i < j) {
4303                    int sep = uri.indexOf('!', i);
4304                    if (sep < 0 || sep > j) sep = j;
4305                    if (i < sep) {
4306                        intent.addCategory(uri.substring(i, sep));
4307                    }
4308                    i = sep + 1;
4309                }
4310                i = j + 1;
4311            }
4312
4313            if (uri.regionMatches(i, "type(", 0, 5)) {
4314                isIntentFragment = true;
4315                i += 5;
4316                int j = uri.indexOf(')', i);
4317                intent.mType = uri.substring(i, j);
4318                i = j + 1;
4319            }
4320
4321            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
4322                isIntentFragment = true;
4323                i += 12;
4324                int j = uri.indexOf(')', i);
4325                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
4326                i = j + 1;
4327            }
4328
4329            if (uri.regionMatches(i, "component(", 0, 10)) {
4330                isIntentFragment = true;
4331                i += 10;
4332                int j = uri.indexOf(')', i);
4333                int sep = uri.indexOf('!', i);
4334                if (sep >= 0 && sep < j) {
4335                    String pkg = uri.substring(i, sep);
4336                    String cls = uri.substring(sep + 1, j);
4337                    intent.mComponent = new ComponentName(pkg, cls);
4338                }
4339                i = j + 1;
4340            }
4341
4342            if (uri.regionMatches(i, "extras(", 0, 7)) {
4343                isIntentFragment = true;
4344                i += 7;
4345
4346                final int closeParen = uri.indexOf(')', i);
4347                if (closeParen == -1) throw new URISyntaxException(uri,
4348                        "EXTRA missing trailing ')'", i);
4349
4350                while (i < closeParen) {
4351                    // fetch the key value
4352                    int j = uri.indexOf('=', i);
4353                    if (j <= i + 1 || i >= closeParen) {
4354                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
4355                    }
4356                    char type = uri.charAt(i);
4357                    i++;
4358                    String key = uri.substring(i, j);
4359                    i = j + 1;
4360
4361                    // get type-value
4362                    j = uri.indexOf('!', i);
4363                    if (j == -1 || j >= closeParen) j = closeParen;
4364                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
4365                    String value = uri.substring(i, j);
4366                    i = j;
4367
4368                    // create Bundle if it doesn't already exist
4369                    if (intent.mExtras == null) intent.mExtras = new Bundle();
4370
4371                    // add item to bundle
4372                    try {
4373                        switch (type) {
4374                            case 'S':
4375                                intent.mExtras.putString(key, Uri.decode(value));
4376                                break;
4377                            case 'B':
4378                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
4379                                break;
4380                            case 'b':
4381                                intent.mExtras.putByte(key, Byte.parseByte(value));
4382                                break;
4383                            case 'c':
4384                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
4385                                break;
4386                            case 'd':
4387                                intent.mExtras.putDouble(key, Double.parseDouble(value));
4388                                break;
4389                            case 'f':
4390                                intent.mExtras.putFloat(key, Float.parseFloat(value));
4391                                break;
4392                            case 'i':
4393                                intent.mExtras.putInt(key, Integer.parseInt(value));
4394                                break;
4395                            case 'l':
4396                                intent.mExtras.putLong(key, Long.parseLong(value));
4397                                break;
4398                            case 's':
4399                                intent.mExtras.putShort(key, Short.parseShort(value));
4400                                break;
4401                            default:
4402                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
4403                        }
4404                    } catch (NumberFormatException e) {
4405                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
4406                    }
4407
4408                    char ch = uri.charAt(i);
4409                    if (ch == ')') break;
4410                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
4411                    i++;
4412                }
4413            }
4414
4415            if (isIntentFragment) {
4416                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
4417            } else {
4418                intent.mData = Uri.parse(uri);
4419            }
4420
4421            if (intent.mAction == null) {
4422                // By default, if no action is specified, then use VIEW.
4423                intent.mAction = ACTION_VIEW;
4424            }
4425
4426        } else {
4427            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
4428        }
4429
4430        return intent;
4431    }
4432
4433    /**
4434     * Retrieve the general action to be performed, such as
4435     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
4436     * the information in the intent should be interpreted -- most importantly,
4437     * what to do with the data returned by {@link #getData}.
4438     *
4439     * @return The action of this intent or null if none is specified.
4440     *
4441     * @see #setAction
4442     */
4443    public String getAction() {
4444        return mAction;
4445    }
4446
4447    /**
4448     * Retrieve data this intent is operating on.  This URI specifies the name
4449     * of the data; often it uses the content: scheme, specifying data in a
4450     * content provider.  Other schemes may be handled by specific activities,
4451     * such as http: by the web browser.
4452     *
4453     * @return The URI of the data this intent is targeting or null.
4454     *
4455     * @see #getScheme
4456     * @see #setData
4457     */
4458    public Uri getData() {
4459        return mData;
4460    }
4461
4462    /**
4463     * The same as {@link #getData()}, but returns the URI as an encoded
4464     * String.
4465     */
4466    public String getDataString() {
4467        return mData != null ? mData.toString() : null;
4468    }
4469
4470    /**
4471     * Return the scheme portion of the intent's data.  If the data is null or
4472     * does not include a scheme, null is returned.  Otherwise, the scheme
4473     * prefix without the final ':' is returned, i.e. "http".
4474     *
4475     * <p>This is the same as calling getData().getScheme() (and checking for
4476     * null data).
4477     *
4478     * @return The scheme of this intent.
4479     *
4480     * @see #getData
4481     */
4482    public String getScheme() {
4483        return mData != null ? mData.getScheme() : null;
4484    }
4485
4486    /**
4487     * Retrieve any explicit MIME type included in the intent.  This is usually
4488     * null, as the type is determined by the intent data.
4489     *
4490     * @return If a type was manually set, it is returned; else null is
4491     *         returned.
4492     *
4493     * @see #resolveType(ContentResolver)
4494     * @see #setType
4495     */
4496    public String getType() {
4497        return mType;
4498    }
4499
4500    /**
4501     * Return the MIME data type of this intent.  If the type field is
4502     * explicitly set, that is simply returned.  Otherwise, if the data is set,
4503     * the type of that data is returned.  If neither fields are set, a null is
4504     * returned.
4505     *
4506     * @return The MIME type of this intent.
4507     *
4508     * @see #getType
4509     * @see #resolveType(ContentResolver)
4510     */
4511    public String resolveType(Context context) {
4512        return resolveType(context.getContentResolver());
4513    }
4514
4515    /**
4516     * Return the MIME data type of this intent.  If the type field is
4517     * explicitly set, that is simply returned.  Otherwise, if the data is set,
4518     * the type of that data is returned.  If neither fields are set, a null is
4519     * returned.
4520     *
4521     * @param resolver A ContentResolver that can be used to determine the MIME
4522     *                 type of the intent's data.
4523     *
4524     * @return The MIME type of this intent.
4525     *
4526     * @see #getType
4527     * @see #resolveType(Context)
4528     */
4529    public String resolveType(ContentResolver resolver) {
4530        if (mType != null) {
4531            return mType;
4532        }
4533        if (mData != null) {
4534            if ("content".equals(mData.getScheme())) {
4535                return resolver.getType(mData);
4536            }
4537        }
4538        return null;
4539    }
4540
4541    /**
4542     * Return the MIME data type of this intent, only if it will be needed for
4543     * intent resolution.  This is not generally useful for application code;
4544     * it is used by the frameworks for communicating with back-end system
4545     * services.
4546     *
4547     * @param resolver A ContentResolver that can be used to determine the MIME
4548     *                 type of the intent's data.
4549     *
4550     * @return The MIME type of this intent, or null if it is unknown or not
4551     *         needed.
4552     */
4553    public String resolveTypeIfNeeded(ContentResolver resolver) {
4554        if (mComponent != null) {
4555            return mType;
4556        }
4557        return resolveType(resolver);
4558    }
4559
4560    /**
4561     * Check if a category exists in the intent.
4562     *
4563     * @param category The category to check.
4564     *
4565     * @return boolean True if the intent contains the category, else false.
4566     *
4567     * @see #getCategories
4568     * @see #addCategory
4569     */
4570    public boolean hasCategory(String category) {
4571        return mCategories != null && mCategories.contains(category);
4572    }
4573
4574    /**
4575     * Return the set of all categories in the intent.  If there are no categories,
4576     * returns NULL.
4577     *
4578     * @return The set of categories you can examine.  Do not modify!
4579     *
4580     * @see #hasCategory
4581     * @see #addCategory
4582     */
4583    public Set<String> getCategories() {
4584        return mCategories;
4585    }
4586
4587    /**
4588     * Return the specific selector associated with this Intent.  If there is
4589     * none, returns null.  See {@link #setSelector} for more information.
4590     *
4591     * @see #setSelector
4592     */
4593    public Intent getSelector() {
4594        return mSelector;
4595    }
4596
4597    /**
4598     * Return the {@link ClipData} associated with this Intent.  If there is
4599     * none, returns null.  See {@link #setClipData} for more information.
4600     *
4601     * @see #setClipData
4602     */
4603    public ClipData getClipData() {
4604        return mClipData;
4605    }
4606
4607    /** @hide */
4608    public int getContentUserHint() {
4609        return mContentUserHint;
4610    }
4611
4612    /**
4613     * Sets the ClassLoader that will be used when unmarshalling
4614     * any Parcelable values from the extras of this Intent.
4615     *
4616     * @param loader a ClassLoader, or null to use the default loader
4617     * at the time of unmarshalling.
4618     */
4619    public void setExtrasClassLoader(ClassLoader loader) {
4620        if (mExtras != null) {
4621            mExtras.setClassLoader(loader);
4622        }
4623    }
4624
4625    /**
4626     * Returns true if an extra value is associated with the given name.
4627     * @param name the extra's name
4628     * @return true if the given extra is present.
4629     */
4630    public boolean hasExtra(String name) {
4631        return mExtras != null && mExtras.containsKey(name);
4632    }
4633
4634    /**
4635     * Returns true if the Intent's extras contain a parcelled file descriptor.
4636     * @return true if the Intent contains a parcelled file descriptor.
4637     */
4638    public boolean hasFileDescriptors() {
4639        return mExtras != null && mExtras.hasFileDescriptors();
4640    }
4641
4642    /** @hide */
4643    public void setAllowFds(boolean allowFds) {
4644        if (mExtras != null) {
4645            mExtras.setAllowFds(allowFds);
4646        }
4647    }
4648
4649    /**
4650     * Retrieve extended data from the intent.
4651     *
4652     * @param name The name of the desired item.
4653     *
4654     * @return the value of an item that previously added with putExtra()
4655     * or null if none was found.
4656     *
4657     * @deprecated
4658     * @hide
4659     */
4660    @Deprecated
4661    public Object getExtra(String name) {
4662        return getExtra(name, null);
4663    }
4664
4665    /**
4666     * Retrieve extended data from the intent.
4667     *
4668     * @param name The name of the desired item.
4669     * @param defaultValue the value to be returned if no value of the desired
4670     * type is stored with the given name.
4671     *
4672     * @return the value of an item that previously added with putExtra()
4673     * or the default value if none was found.
4674     *
4675     * @see #putExtra(String, boolean)
4676     */
4677    public boolean getBooleanExtra(String name, boolean defaultValue) {
4678        return mExtras == null ? defaultValue :
4679            mExtras.getBoolean(name, defaultValue);
4680    }
4681
4682    /**
4683     * Retrieve extended data from the intent.
4684     *
4685     * @param name The name of the desired item.
4686     * @param defaultValue the value to be returned if no value of the desired
4687     * type is stored with the given name.
4688     *
4689     * @return the value of an item that previously added with putExtra()
4690     * or the default value if none was found.
4691     *
4692     * @see #putExtra(String, byte)
4693     */
4694    public byte getByteExtra(String name, byte defaultValue) {
4695        return mExtras == null ? defaultValue :
4696            mExtras.getByte(name, defaultValue);
4697    }
4698
4699    /**
4700     * Retrieve extended data from the intent.
4701     *
4702     * @param name The name of the desired item.
4703     * @param defaultValue the value to be returned if no value of the desired
4704     * type is stored with the given name.
4705     *
4706     * @return the value of an item that previously added with putExtra()
4707     * or the default value if none was found.
4708     *
4709     * @see #putExtra(String, short)
4710     */
4711    public short getShortExtra(String name, short defaultValue) {
4712        return mExtras == null ? defaultValue :
4713            mExtras.getShort(name, defaultValue);
4714    }
4715
4716    /**
4717     * Retrieve extended data from the intent.
4718     *
4719     * @param name The name of the desired item.
4720     * @param defaultValue the value to be returned if no value of the desired
4721     * type is stored with the given name.
4722     *
4723     * @return the value of an item that previously added with putExtra()
4724     * or the default value if none was found.
4725     *
4726     * @see #putExtra(String, char)
4727     */
4728    public char getCharExtra(String name, char defaultValue) {
4729        return mExtras == null ? defaultValue :
4730            mExtras.getChar(name, defaultValue);
4731    }
4732
4733    /**
4734     * Retrieve extended data from the intent.
4735     *
4736     * @param name The name of the desired item.
4737     * @param defaultValue the value to be returned if no value of the desired
4738     * type is stored with the given name.
4739     *
4740     * @return the value of an item that previously added with putExtra()
4741     * or the default value if none was found.
4742     *
4743     * @see #putExtra(String, int)
4744     */
4745    public int getIntExtra(String name, int defaultValue) {
4746        return mExtras == null ? defaultValue :
4747            mExtras.getInt(name, defaultValue);
4748    }
4749
4750    /**
4751     * Retrieve extended data from the intent.
4752     *
4753     * @param name The name of the desired item.
4754     * @param defaultValue the value to be returned if no value of the desired
4755     * type is stored with the given name.
4756     *
4757     * @return the value of an item that previously added with putExtra()
4758     * or the default value if none was found.
4759     *
4760     * @see #putExtra(String, long)
4761     */
4762    public long getLongExtra(String name, long defaultValue) {
4763        return mExtras == null ? defaultValue :
4764            mExtras.getLong(name, defaultValue);
4765    }
4766
4767    /**
4768     * Retrieve extended data from the intent.
4769     *
4770     * @param name The name of the desired item.
4771     * @param defaultValue the value to be returned if no value of the desired
4772     * type is stored with the given name.
4773     *
4774     * @return the value of an item that previously added with putExtra(),
4775     * or the default value if no such item is present
4776     *
4777     * @see #putExtra(String, float)
4778     */
4779    public float getFloatExtra(String name, float defaultValue) {
4780        return mExtras == null ? defaultValue :
4781            mExtras.getFloat(name, defaultValue);
4782    }
4783
4784    /**
4785     * Retrieve extended data from the intent.
4786     *
4787     * @param name The name of the desired item.
4788     * @param defaultValue the value to be returned if no value of the desired
4789     * type is stored with the given name.
4790     *
4791     * @return the value of an item that previously added with putExtra()
4792     * or the default value if none was found.
4793     *
4794     * @see #putExtra(String, double)
4795     */
4796    public double getDoubleExtra(String name, double defaultValue) {
4797        return mExtras == null ? defaultValue :
4798            mExtras.getDouble(name, defaultValue);
4799    }
4800
4801    /**
4802     * Retrieve extended data from the intent.
4803     *
4804     * @param name The name of the desired item.
4805     *
4806     * @return the value of an item that previously added with putExtra()
4807     * or null if no String value was found.
4808     *
4809     * @see #putExtra(String, String)
4810     */
4811    public String getStringExtra(String name) {
4812        return mExtras == null ? null : mExtras.getString(name);
4813    }
4814
4815    /**
4816     * Retrieve extended data from the intent.
4817     *
4818     * @param name The name of the desired item.
4819     *
4820     * @return the value of an item that previously added with putExtra()
4821     * or null if no CharSequence value was found.
4822     *
4823     * @see #putExtra(String, CharSequence)
4824     */
4825    public CharSequence getCharSequenceExtra(String name) {
4826        return mExtras == null ? null : mExtras.getCharSequence(name);
4827    }
4828
4829    /**
4830     * Retrieve extended data from the intent.
4831     *
4832     * @param name The name of the desired item.
4833     *
4834     * @return the value of an item that previously added with putExtra()
4835     * or null if no Parcelable value was found.
4836     *
4837     * @see #putExtra(String, Parcelable)
4838     */
4839    public <T extends Parcelable> T getParcelableExtra(String name) {
4840        return mExtras == null ? null : mExtras.<T>getParcelable(name);
4841    }
4842
4843    /**
4844     * Retrieve extended data from the intent.
4845     *
4846     * @param name The name of the desired item.
4847     *
4848     * @return the value of an item that previously added with putExtra()
4849     * or null if no Parcelable[] value was found.
4850     *
4851     * @see #putExtra(String, Parcelable[])
4852     */
4853    public Parcelable[] getParcelableArrayExtra(String name) {
4854        return mExtras == null ? null : mExtras.getParcelableArray(name);
4855    }
4856
4857    /**
4858     * Retrieve extended data from the intent.
4859     *
4860     * @param name The name of the desired item.
4861     *
4862     * @return the value of an item that previously added with putExtra()
4863     * or null if no ArrayList<Parcelable> value was found.
4864     *
4865     * @see #putParcelableArrayListExtra(String, ArrayList)
4866     */
4867    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
4868        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
4869    }
4870
4871    /**
4872     * Retrieve extended data from the intent.
4873     *
4874     * @param name The name of the desired item.
4875     *
4876     * @return the value of an item that previously added with putExtra()
4877     * or null if no Serializable value was found.
4878     *
4879     * @see #putExtra(String, Serializable)
4880     */
4881    public Serializable getSerializableExtra(String name) {
4882        return mExtras == null ? null : mExtras.getSerializable(name);
4883    }
4884
4885    /**
4886     * Retrieve extended data from the intent.
4887     *
4888     * @param name The name of the desired item.
4889     *
4890     * @return the value of an item that previously added with putExtra()
4891     * or null if no ArrayList<Integer> value was found.
4892     *
4893     * @see #putIntegerArrayListExtra(String, ArrayList)
4894     */
4895    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
4896        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
4897    }
4898
4899    /**
4900     * Retrieve extended data from the intent.
4901     *
4902     * @param name The name of the desired item.
4903     *
4904     * @return the value of an item that previously added with putExtra()
4905     * or null if no ArrayList<String> value was found.
4906     *
4907     * @see #putStringArrayListExtra(String, ArrayList)
4908     */
4909    public ArrayList<String> getStringArrayListExtra(String name) {
4910        return mExtras == null ? null : mExtras.getStringArrayList(name);
4911    }
4912
4913    /**
4914     * Retrieve extended data from the intent.
4915     *
4916     * @param name The name of the desired item.
4917     *
4918     * @return the value of an item that previously added with putExtra()
4919     * or null if no ArrayList<CharSequence> value was found.
4920     *
4921     * @see #putCharSequenceArrayListExtra(String, ArrayList)
4922     */
4923    public ArrayList<CharSequence> getCharSequenceArrayListExtra(String name) {
4924        return mExtras == null ? null : mExtras.getCharSequenceArrayList(name);
4925    }
4926
4927    /**
4928     * Retrieve extended data from the intent.
4929     *
4930     * @param name The name of the desired item.
4931     *
4932     * @return the value of an item that previously added with putExtra()
4933     * or null if no boolean array value was found.
4934     *
4935     * @see #putExtra(String, boolean[])
4936     */
4937    public boolean[] getBooleanArrayExtra(String name) {
4938        return mExtras == null ? null : mExtras.getBooleanArray(name);
4939    }
4940
4941    /**
4942     * Retrieve extended data from the intent.
4943     *
4944     * @param name The name of the desired item.
4945     *
4946     * @return the value of an item that previously added with putExtra()
4947     * or null if no byte array value was found.
4948     *
4949     * @see #putExtra(String, byte[])
4950     */
4951    public byte[] getByteArrayExtra(String name) {
4952        return mExtras == null ? null : mExtras.getByteArray(name);
4953    }
4954
4955    /**
4956     * Retrieve extended data from the intent.
4957     *
4958     * @param name The name of the desired item.
4959     *
4960     * @return the value of an item that previously added with putExtra()
4961     * or null if no short array value was found.
4962     *
4963     * @see #putExtra(String, short[])
4964     */
4965    public short[] getShortArrayExtra(String name) {
4966        return mExtras == null ? null : mExtras.getShortArray(name);
4967    }
4968
4969    /**
4970     * Retrieve extended data from the intent.
4971     *
4972     * @param name The name of the desired item.
4973     *
4974     * @return the value of an item that previously added with putExtra()
4975     * or null if no char array value was found.
4976     *
4977     * @see #putExtra(String, char[])
4978     */
4979    public char[] getCharArrayExtra(String name) {
4980        return mExtras == null ? null : mExtras.getCharArray(name);
4981    }
4982
4983    /**
4984     * Retrieve extended data from the intent.
4985     *
4986     * @param name The name of the desired item.
4987     *
4988     * @return the value of an item that previously added with putExtra()
4989     * or null if no int array value was found.
4990     *
4991     * @see #putExtra(String, int[])
4992     */
4993    public int[] getIntArrayExtra(String name) {
4994        return mExtras == null ? null : mExtras.getIntArray(name);
4995    }
4996
4997    /**
4998     * Retrieve extended data from the intent.
4999     *
5000     * @param name The name of the desired item.
5001     *
5002     * @return the value of an item that previously added with putExtra()
5003     * or null if no long array value was found.
5004     *
5005     * @see #putExtra(String, long[])
5006     */
5007    public long[] getLongArrayExtra(String name) {
5008        return mExtras == null ? null : mExtras.getLongArray(name);
5009    }
5010
5011    /**
5012     * Retrieve extended data from the intent.
5013     *
5014     * @param name The name of the desired item.
5015     *
5016     * @return the value of an item that previously added with putExtra()
5017     * or null if no float array value was found.
5018     *
5019     * @see #putExtra(String, float[])
5020     */
5021    public float[] getFloatArrayExtra(String name) {
5022        return mExtras == null ? null : mExtras.getFloatArray(name);
5023    }
5024
5025    /**
5026     * Retrieve extended data from the intent.
5027     *
5028     * @param name The name of the desired item.
5029     *
5030     * @return the value of an item that previously added with putExtra()
5031     * or null if no double array value was found.
5032     *
5033     * @see #putExtra(String, double[])
5034     */
5035    public double[] getDoubleArrayExtra(String name) {
5036        return mExtras == null ? null : mExtras.getDoubleArray(name);
5037    }
5038
5039    /**
5040     * Retrieve extended data from the intent.
5041     *
5042     * @param name The name of the desired item.
5043     *
5044     * @return the value of an item that previously added with putExtra()
5045     * or null if no String array value was found.
5046     *
5047     * @see #putExtra(String, String[])
5048     */
5049    public String[] getStringArrayExtra(String name) {
5050        return mExtras == null ? null : mExtras.getStringArray(name);
5051    }
5052
5053    /**
5054     * Retrieve extended data from the intent.
5055     *
5056     * @param name The name of the desired item.
5057     *
5058     * @return the value of an item that previously added with putExtra()
5059     * or null if no CharSequence array value was found.
5060     *
5061     * @see #putExtra(String, CharSequence[])
5062     */
5063    public CharSequence[] getCharSequenceArrayExtra(String name) {
5064        return mExtras == null ? null : mExtras.getCharSequenceArray(name);
5065    }
5066
5067    /**
5068     * Retrieve extended data from the intent.
5069     *
5070     * @param name The name of the desired item.
5071     *
5072     * @return the value of an item that previously added with putExtra()
5073     * or null if no Bundle value was found.
5074     *
5075     * @see #putExtra(String, Bundle)
5076     */
5077    public Bundle getBundleExtra(String name) {
5078        return mExtras == null ? null : mExtras.getBundle(name);
5079    }
5080
5081    /**
5082     * Retrieve extended data from the intent.
5083     *
5084     * @param name The name of the desired item.
5085     *
5086     * @return the value of an item that previously added with putExtra()
5087     * or null if no IBinder value was found.
5088     *
5089     * @see #putExtra(String, IBinder)
5090     *
5091     * @deprecated
5092     * @hide
5093     */
5094    @Deprecated
5095    public IBinder getIBinderExtra(String name) {
5096        return mExtras == null ? null : mExtras.getIBinder(name);
5097    }
5098
5099    /**
5100     * Retrieve extended data from the intent.
5101     *
5102     * @param name The name of the desired item.
5103     * @param defaultValue The default value to return in case no item is
5104     * associated with the key 'name'
5105     *
5106     * @return the value of an item that previously added with putExtra()
5107     * or defaultValue if none was found.
5108     *
5109     * @see #putExtra
5110     *
5111     * @deprecated
5112     * @hide
5113     */
5114    @Deprecated
5115    public Object getExtra(String name, Object defaultValue) {
5116        Object result = defaultValue;
5117        if (mExtras != null) {
5118            Object result2 = mExtras.get(name);
5119            if (result2 != null) {
5120                result = result2;
5121            }
5122        }
5123
5124        return result;
5125    }
5126
5127    /**
5128     * Retrieves a map of extended data from the intent.
5129     *
5130     * @return the map of all extras previously added with putExtra(),
5131     * or null if none have been added.
5132     */
5133    public Bundle getExtras() {
5134        return (mExtras != null)
5135                ? new Bundle(mExtras)
5136                : null;
5137    }
5138
5139    /**
5140     * Retrieve any special flags associated with this intent.  You will
5141     * normally just set them with {@link #setFlags} and let the system
5142     * take the appropriate action with them.
5143     *
5144     * @return int The currently set flags.
5145     *
5146     * @see #setFlags
5147     */
5148    public int getFlags() {
5149        return mFlags;
5150    }
5151
5152    /** @hide */
5153    public boolean isExcludingStopped() {
5154        return (mFlags&(FLAG_EXCLUDE_STOPPED_PACKAGES|FLAG_INCLUDE_STOPPED_PACKAGES))
5155                == FLAG_EXCLUDE_STOPPED_PACKAGES;
5156    }
5157
5158    /**
5159     * Retrieve the application package name this Intent is limited to.  When
5160     * resolving an Intent, if non-null this limits the resolution to only
5161     * components in the given application package.
5162     *
5163     * @return The name of the application package for the Intent.
5164     *
5165     * @see #resolveActivity
5166     * @see #setPackage
5167     */
5168    public String getPackage() {
5169        return mPackage;
5170    }
5171
5172    /**
5173     * Retrieve the concrete component associated with the intent.  When receiving
5174     * an intent, this is the component that was found to best handle it (that is,
5175     * yourself) and will always be non-null; in all other cases it will be
5176     * null unless explicitly set.
5177     *
5178     * @return The name of the application component to handle the intent.
5179     *
5180     * @see #resolveActivity
5181     * @see #setComponent
5182     */
5183    public ComponentName getComponent() {
5184        return mComponent;
5185    }
5186
5187    /**
5188     * Get the bounds of the sender of this intent, in screen coordinates.  This can be
5189     * used as a hint to the receiver for animations and the like.  Null means that there
5190     * is no source bounds.
5191     */
5192    public Rect getSourceBounds() {
5193        return mSourceBounds;
5194    }
5195
5196    /**
5197     * Return the Activity component that should be used to handle this intent.
5198     * The appropriate component is determined based on the information in the
5199     * intent, evaluated as follows:
5200     *
5201     * <p>If {@link #getComponent} returns an explicit class, that is returned
5202     * without any further consideration.
5203     *
5204     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
5205     * category to be considered.
5206     *
5207     * <p>If {@link #getAction} is non-NULL, the activity must handle this
5208     * action.
5209     *
5210     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
5211     * this type.
5212     *
5213     * <p>If {@link #addCategory} has added any categories, the activity must
5214     * handle ALL of the categories specified.
5215     *
5216     * <p>If {@link #getPackage} is non-NULL, only activity components in
5217     * that application package will be considered.
5218     *
5219     * <p>If there are no activities that satisfy all of these conditions, a
5220     * null string is returned.
5221     *
5222     * <p>If multiple activities are found to satisfy the intent, the one with
5223     * the highest priority will be used.  If there are multiple activities
5224     * with the same priority, the system will either pick the best activity
5225     * based on user preference, or resolve to a system class that will allow
5226     * the user to pick an activity and forward from there.
5227     *
5228     * <p>This method is implemented simply by calling
5229     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
5230     * true.</p>
5231     * <p> This API is called for you as part of starting an activity from an
5232     * intent.  You do not normally need to call it yourself.</p>
5233     *
5234     * @param pm The package manager with which to resolve the Intent.
5235     *
5236     * @return Name of the component implementing an activity that can
5237     *         display the intent.
5238     *
5239     * @see #setComponent
5240     * @see #getComponent
5241     * @see #resolveActivityInfo
5242     */
5243    public ComponentName resolveActivity(PackageManager pm) {
5244        if (mComponent != null) {
5245            return mComponent;
5246        }
5247
5248        ResolveInfo info = pm.resolveActivity(
5249            this, PackageManager.MATCH_DEFAULT_ONLY);
5250        if (info != null) {
5251            return new ComponentName(
5252                    info.activityInfo.applicationInfo.packageName,
5253                    info.activityInfo.name);
5254        }
5255
5256        return null;
5257    }
5258
5259    /**
5260     * Resolve the Intent into an {@link ActivityInfo}
5261     * describing the activity that should execute the intent.  Resolution
5262     * follows the same rules as described for {@link #resolveActivity}, but
5263     * you get back the completely information about the resolved activity
5264     * instead of just its class name.
5265     *
5266     * @param pm The package manager with which to resolve the Intent.
5267     * @param flags Addition information to retrieve as per
5268     * {@link PackageManager#getActivityInfo(ComponentName, int)
5269     * PackageManager.getActivityInfo()}.
5270     *
5271     * @return PackageManager.ActivityInfo
5272     *
5273     * @see #resolveActivity
5274     */
5275    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
5276        ActivityInfo ai = null;
5277        if (mComponent != null) {
5278            try {
5279                ai = pm.getActivityInfo(mComponent, flags);
5280            } catch (PackageManager.NameNotFoundException e) {
5281                // ignore
5282            }
5283        } else {
5284            ResolveInfo info = pm.resolveActivity(
5285                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
5286            if (info != null) {
5287                ai = info.activityInfo;
5288            }
5289        }
5290
5291        return ai;
5292    }
5293
5294    /**
5295     * Special function for use by the system to resolve service
5296     * intents to system apps.  Throws an exception if there are
5297     * multiple potential matches to the Intent.  Returns null if
5298     * there are no matches.
5299     * @hide
5300     */
5301    public ComponentName resolveSystemService(PackageManager pm, int flags) {
5302        if (mComponent != null) {
5303            return mComponent;
5304        }
5305
5306        List<ResolveInfo> results = pm.queryIntentServices(this, flags);
5307        if (results == null) {
5308            return null;
5309        }
5310        ComponentName comp = null;
5311        for (int i=0; i<results.size(); i++) {
5312            ResolveInfo ri = results.get(i);
5313            if ((ri.serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) == 0) {
5314                continue;
5315            }
5316            ComponentName foundComp = new ComponentName(ri.serviceInfo.applicationInfo.packageName,
5317                    ri.serviceInfo.name);
5318            if (comp != null) {
5319                throw new IllegalStateException("Multiple system services handle " + this
5320                        + ": " + comp + ", " + foundComp);
5321            }
5322            comp = foundComp;
5323        }
5324        return comp;
5325    }
5326
5327    /**
5328     * Set the general action to be performed.
5329     *
5330     * @param action An action name, such as ACTION_VIEW.  Application-specific
5331     *               actions should be prefixed with the vendor's package name.
5332     *
5333     * @return Returns the same Intent object, for chaining multiple calls
5334     * into a single statement.
5335     *
5336     * @see #getAction
5337     */
5338    public Intent setAction(String action) {
5339        mAction = action != null ? action.intern() : null;
5340        return this;
5341    }
5342
5343    /**
5344     * Set the data this intent is operating on.  This method automatically
5345     * clears any type that was previously set by {@link #setType} or
5346     * {@link #setTypeAndNormalize}.
5347     *
5348     * <p><em>Note: scheme matching in the Android framework is
5349     * case-sensitive, unlike the formal RFC. As a result,
5350     * you should always write your Uri with a lower case scheme,
5351     * or use {@link Uri#normalizeScheme} or
5352     * {@link #setDataAndNormalize}
5353     * to ensure that the scheme is converted to lower case.</em>
5354     *
5355     * @param data The Uri of the data this intent is now targeting.
5356     *
5357     * @return Returns the same Intent object, for chaining multiple calls
5358     * into a single statement.
5359     *
5360     * @see #getData
5361     * @see #setDataAndNormalize
5362     * @see android.net.Uri#normalizeScheme()
5363     */
5364    public Intent setData(Uri data) {
5365        mData = data;
5366        mType = null;
5367        return this;
5368    }
5369
5370    /**
5371     * Normalize and set the data this intent is operating on.
5372     *
5373     * <p>This method automatically clears any type that was
5374     * previously set (for example, by {@link #setType}).
5375     *
5376     * <p>The data Uri is normalized using
5377     * {@link android.net.Uri#normalizeScheme} before it is set,
5378     * so really this is just a convenience method for
5379     * <pre>
5380     * setData(data.normalize())
5381     * </pre>
5382     *
5383     * @param data The Uri of the data this intent is now targeting.
5384     *
5385     * @return Returns the same Intent object, for chaining multiple calls
5386     * into a single statement.
5387     *
5388     * @see #getData
5389     * @see #setType
5390     * @see android.net.Uri#normalizeScheme
5391     */
5392    public Intent setDataAndNormalize(Uri data) {
5393        return setData(data.normalizeScheme());
5394    }
5395
5396    /**
5397     * Set an explicit MIME data type.
5398     *
5399     * <p>This is used to create intents that only specify a type and not data,
5400     * for example to indicate the type of data to return.
5401     *
5402     * <p>This method automatically clears any data that was
5403     * previously set (for example by {@link #setData}).
5404     *
5405     * <p><em>Note: MIME type matching in the Android framework is
5406     * case-sensitive, unlike formal RFC MIME types.  As a result,
5407     * you should always write your MIME types with lower case letters,
5408     * or use {@link #normalizeMimeType} or {@link #setTypeAndNormalize}
5409     * to ensure that it is converted to lower case.</em>
5410     *
5411     * @param type The MIME type of the data being handled by this intent.
5412     *
5413     * @return Returns the same Intent object, for chaining multiple calls
5414     * into a single statement.
5415     *
5416     * @see #getType
5417     * @see #setTypeAndNormalize
5418     * @see #setDataAndType
5419     * @see #normalizeMimeType
5420     */
5421    public Intent setType(String type) {
5422        mData = null;
5423        mType = type;
5424        return this;
5425    }
5426
5427    /**
5428     * Normalize and set an explicit MIME data type.
5429     *
5430     * <p>This is used to create intents that only specify a type and not data,
5431     * for example to indicate the type of data to return.
5432     *
5433     * <p>This method automatically clears any data that was
5434     * previously set (for example by {@link #setData}).
5435     *
5436     * <p>The MIME type is normalized using
5437     * {@link #normalizeMimeType} before it is set,
5438     * so really this is just a convenience method for
5439     * <pre>
5440     * setType(Intent.normalizeMimeType(type))
5441     * </pre>
5442     *
5443     * @param type The MIME type of the data being handled by this intent.
5444     *
5445     * @return Returns the same Intent object, for chaining multiple calls
5446     * into a single statement.
5447     *
5448     * @see #getType
5449     * @see #setData
5450     * @see #normalizeMimeType
5451     */
5452    public Intent setTypeAndNormalize(String type) {
5453        return setType(normalizeMimeType(type));
5454    }
5455
5456    /**
5457     * (Usually optional) Set the data for the intent along with an explicit
5458     * MIME data type.  This method should very rarely be used -- it allows you
5459     * to override the MIME type that would ordinarily be inferred from the
5460     * data with your own type given here.
5461     *
5462     * <p><em>Note: MIME type and Uri scheme matching in the
5463     * Android framework is case-sensitive, unlike the formal RFC definitions.
5464     * As a result, you should always write these elements with lower case letters,
5465     * or use {@link #normalizeMimeType} or {@link android.net.Uri#normalizeScheme} or
5466     * {@link #setDataAndTypeAndNormalize}
5467     * to ensure that they are converted to lower case.</em>
5468     *
5469     * @param data The Uri of the data this intent is now targeting.
5470     * @param type The MIME type of the data being handled by this intent.
5471     *
5472     * @return Returns the same Intent object, for chaining multiple calls
5473     * into a single statement.
5474     *
5475     * @see #setType
5476     * @see #setData
5477     * @see #normalizeMimeType
5478     * @see android.net.Uri#normalizeScheme
5479     * @see #setDataAndTypeAndNormalize
5480     */
5481    public Intent setDataAndType(Uri data, String type) {
5482        mData = data;
5483        mType = type;
5484        return this;
5485    }
5486
5487    /**
5488     * (Usually optional) Normalize and set both the data Uri and an explicit
5489     * MIME data type.  This method should very rarely be used -- it allows you
5490     * to override the MIME type that would ordinarily be inferred from the
5491     * data with your own type given here.
5492     *
5493     * <p>The data Uri and the MIME type are normalize using
5494     * {@link android.net.Uri#normalizeScheme} and {@link #normalizeMimeType}
5495     * before they are set, so really this is just a convenience method for
5496     * <pre>
5497     * setDataAndType(data.normalize(), Intent.normalizeMimeType(type))
5498     * </pre>
5499     *
5500     * @param data The Uri of the data this intent is now targeting.
5501     * @param type The MIME type of the data being handled by this intent.
5502     *
5503     * @return Returns the same Intent object, for chaining multiple calls
5504     * into a single statement.
5505     *
5506     * @see #setType
5507     * @see #setData
5508     * @see #setDataAndType
5509     * @see #normalizeMimeType
5510     * @see android.net.Uri#normalizeScheme
5511     */
5512    public Intent setDataAndTypeAndNormalize(Uri data, String type) {
5513        return setDataAndType(data.normalizeScheme(), normalizeMimeType(type));
5514    }
5515
5516    /**
5517     * Add a new category to the intent.  Categories provide additional detail
5518     * about the action the intent performs.  When resolving an intent, only
5519     * activities that provide <em>all</em> of the requested categories will be
5520     * used.
5521     *
5522     * @param category The desired category.  This can be either one of the
5523     *               predefined Intent categories, or a custom category in your own
5524     *               namespace.
5525     *
5526     * @return Returns the same Intent object, for chaining multiple calls
5527     * into a single statement.
5528     *
5529     * @see #hasCategory
5530     * @see #removeCategory
5531     */
5532    public Intent addCategory(String category) {
5533        if (mCategories == null) {
5534            mCategories = new ArraySet<String>();
5535        }
5536        mCategories.add(category.intern());
5537        return this;
5538    }
5539
5540    /**
5541     * Remove a category from an intent.
5542     *
5543     * @param category The category to remove.
5544     *
5545     * @see #addCategory
5546     */
5547    public void removeCategory(String category) {
5548        if (mCategories != null) {
5549            mCategories.remove(category);
5550            if (mCategories.size() == 0) {
5551                mCategories = null;
5552            }
5553        }
5554    }
5555
5556    /**
5557     * Set a selector for this Intent.  This is a modification to the kinds of
5558     * things the Intent will match.  If the selector is set, it will be used
5559     * when trying to find entities that can handle the Intent, instead of the
5560     * main contents of the Intent.  This allows you build an Intent containing
5561     * a generic protocol while targeting it more specifically.
5562     *
5563     * <p>An example of where this may be used is with things like
5564     * {@link #CATEGORY_APP_BROWSER}.  This category allows you to build an
5565     * Intent that will launch the Browser application.  However, the correct
5566     * main entry point of an application is actually {@link #ACTION_MAIN}
5567     * {@link #CATEGORY_LAUNCHER} with {@link #setComponent(ComponentName)}
5568     * used to specify the actual Activity to launch.  If you launch the browser
5569     * with something different, undesired behavior may happen if the user has
5570     * previously or later launches it the normal way, since they do not match.
5571     * Instead, you can build an Intent with the MAIN action (but no ComponentName
5572     * yet specified) and set a selector with {@link #ACTION_MAIN} and
5573     * {@link #CATEGORY_APP_BROWSER} to point it specifically to the browser activity.
5574     *
5575     * <p>Setting a selector does not impact the behavior of
5576     * {@link #filterEquals(Intent)} and {@link #filterHashCode()}.  This is part of the
5577     * desired behavior of a selector -- it does not impact the base meaning
5578     * of the Intent, just what kinds of things will be matched against it
5579     * when determining who can handle it.</p>
5580     *
5581     * <p>You can not use both a selector and {@link #setPackage(String)} on
5582     * the same base Intent.</p>
5583     *
5584     * @param selector The desired selector Intent; set to null to not use
5585     * a special selector.
5586     */
5587    public void setSelector(Intent selector) {
5588        if (selector == this) {
5589            throw new IllegalArgumentException(
5590                    "Intent being set as a selector of itself");
5591        }
5592        if (selector != null && mPackage != null) {
5593            throw new IllegalArgumentException(
5594                    "Can't set selector when package name is already set");
5595        }
5596        mSelector = selector;
5597    }
5598
5599    /**
5600     * Set a {@link ClipData} associated with this Intent.  This replaces any
5601     * previously set ClipData.
5602     *
5603     * <p>The ClipData in an intent is not used for Intent matching or other
5604     * such operations.  Semantically it is like extras, used to transmit
5605     * additional data with the Intent.  The main feature of using this over
5606     * the extras for data is that {@link #FLAG_GRANT_READ_URI_PERMISSION}
5607     * and {@link #FLAG_GRANT_WRITE_URI_PERMISSION} will operate on any URI
5608     * items included in the clip data.  This is useful, in particular, if
5609     * you want to transmit an Intent containing multiple <code>content:</code>
5610     * URIs for which the recipient may not have global permission to access the
5611     * content provider.
5612     *
5613     * <p>If the ClipData contains items that are themselves Intents, any
5614     * grant flags in those Intents will be ignored.  Only the top-level flags
5615     * of the main Intent are respected, and will be applied to all Uri or
5616     * Intent items in the clip (or sub-items of the clip).
5617     *
5618     * <p>The MIME type, label, and icon in the ClipData object are not
5619     * directly used by Intent.  Applications should generally rely on the
5620     * MIME type of the Intent itself, not what it may find in the ClipData.
5621     * A common practice is to construct a ClipData for use with an Intent
5622     * with a MIME type of "*&#47;*".
5623     *
5624     * @param clip The new clip to set.  May be null to clear the current clip.
5625     */
5626    public void setClipData(ClipData clip) {
5627        mClipData = clip;
5628    }
5629
5630    /**
5631     * This is NOT a secure mechanism to identify the user who sent the intent.
5632     * When the intent is sent to a different user, it is used to fix uris by adding the userId
5633     * who sent the intent.
5634     * @hide
5635     */
5636    public void setContentUserHint(int contentUserHint) {
5637        mContentUserHint = contentUserHint;
5638    }
5639
5640    /**
5641     * Add extended data to the intent.  The name must include a package
5642     * prefix, for example the app com.android.contacts would use names
5643     * like "com.android.contacts.ShowAll".
5644     *
5645     * @param name The name of the extra data, with package prefix.
5646     * @param value The boolean data value.
5647     *
5648     * @return Returns the same Intent object, for chaining multiple calls
5649     * into a single statement.
5650     *
5651     * @see #putExtras
5652     * @see #removeExtra
5653     * @see #getBooleanExtra(String, boolean)
5654     */
5655    public Intent putExtra(String name, boolean value) {
5656        if (mExtras == null) {
5657            mExtras = new Bundle();
5658        }
5659        mExtras.putBoolean(name, value);
5660        return this;
5661    }
5662
5663    /**
5664     * Add extended data to the intent.  The name must include a package
5665     * prefix, for example the app com.android.contacts would use names
5666     * like "com.android.contacts.ShowAll".
5667     *
5668     * @param name The name of the extra data, with package prefix.
5669     * @param value The byte data value.
5670     *
5671     * @return Returns the same Intent object, for chaining multiple calls
5672     * into a single statement.
5673     *
5674     * @see #putExtras
5675     * @see #removeExtra
5676     * @see #getByteExtra(String, byte)
5677     */
5678    public Intent putExtra(String name, byte value) {
5679        if (mExtras == null) {
5680            mExtras = new Bundle();
5681        }
5682        mExtras.putByte(name, value);
5683        return this;
5684    }
5685
5686    /**
5687     * Add extended data to the intent.  The name must include a package
5688     * prefix, for example the app com.android.contacts would use names
5689     * like "com.android.contacts.ShowAll".
5690     *
5691     * @param name The name of the extra data, with package prefix.
5692     * @param value The char data value.
5693     *
5694     * @return Returns the same Intent object, for chaining multiple calls
5695     * into a single statement.
5696     *
5697     * @see #putExtras
5698     * @see #removeExtra
5699     * @see #getCharExtra(String, char)
5700     */
5701    public Intent putExtra(String name, char value) {
5702        if (mExtras == null) {
5703            mExtras = new Bundle();
5704        }
5705        mExtras.putChar(name, value);
5706        return this;
5707    }
5708
5709    /**
5710     * Add extended data to the intent.  The name must include a package
5711     * prefix, for example the app com.android.contacts would use names
5712     * like "com.android.contacts.ShowAll".
5713     *
5714     * @param name The name of the extra data, with package prefix.
5715     * @param value The short data value.
5716     *
5717     * @return Returns the same Intent object, for chaining multiple calls
5718     * into a single statement.
5719     *
5720     * @see #putExtras
5721     * @see #removeExtra
5722     * @see #getShortExtra(String, short)
5723     */
5724    public Intent putExtra(String name, short value) {
5725        if (mExtras == null) {
5726            mExtras = new Bundle();
5727        }
5728        mExtras.putShort(name, value);
5729        return this;
5730    }
5731
5732    /**
5733     * Add extended data to the intent.  The name must include a package
5734     * prefix, for example the app com.android.contacts would use names
5735     * like "com.android.contacts.ShowAll".
5736     *
5737     * @param name The name of the extra data, with package prefix.
5738     * @param value The integer data value.
5739     *
5740     * @return Returns the same Intent object, for chaining multiple calls
5741     * into a single statement.
5742     *
5743     * @see #putExtras
5744     * @see #removeExtra
5745     * @see #getIntExtra(String, int)
5746     */
5747    public Intent putExtra(String name, int value) {
5748        if (mExtras == null) {
5749            mExtras = new Bundle();
5750        }
5751        mExtras.putInt(name, value);
5752        return this;
5753    }
5754
5755    /**
5756     * Add extended data to the intent.  The name must include a package
5757     * prefix, for example the app com.android.contacts would use names
5758     * like "com.android.contacts.ShowAll".
5759     *
5760     * @param name The name of the extra data, with package prefix.
5761     * @param value The long data value.
5762     *
5763     * @return Returns the same Intent object, for chaining multiple calls
5764     * into a single statement.
5765     *
5766     * @see #putExtras
5767     * @see #removeExtra
5768     * @see #getLongExtra(String, long)
5769     */
5770    public Intent putExtra(String name, long value) {
5771        if (mExtras == null) {
5772            mExtras = new Bundle();
5773        }
5774        mExtras.putLong(name, value);
5775        return this;
5776    }
5777
5778    /**
5779     * Add extended data to the intent.  The name must include a package
5780     * prefix, for example the app com.android.contacts would use names
5781     * like "com.android.contacts.ShowAll".
5782     *
5783     * @param name The name of the extra data, with package prefix.
5784     * @param value The float data value.
5785     *
5786     * @return Returns the same Intent object, for chaining multiple calls
5787     * into a single statement.
5788     *
5789     * @see #putExtras
5790     * @see #removeExtra
5791     * @see #getFloatExtra(String, float)
5792     */
5793    public Intent putExtra(String name, float value) {
5794        if (mExtras == null) {
5795            mExtras = new Bundle();
5796        }
5797        mExtras.putFloat(name, value);
5798        return this;
5799    }
5800
5801    /**
5802     * Add extended data to the intent.  The name must include a package
5803     * prefix, for example the app com.android.contacts would use names
5804     * like "com.android.contacts.ShowAll".
5805     *
5806     * @param name The name of the extra data, with package prefix.
5807     * @param value The double data value.
5808     *
5809     * @return Returns the same Intent object, for chaining multiple calls
5810     * into a single statement.
5811     *
5812     * @see #putExtras
5813     * @see #removeExtra
5814     * @see #getDoubleExtra(String, double)
5815     */
5816    public Intent putExtra(String name, double value) {
5817        if (mExtras == null) {
5818            mExtras = new Bundle();
5819        }
5820        mExtras.putDouble(name, value);
5821        return this;
5822    }
5823
5824    /**
5825     * Add extended data to the intent.  The name must include a package
5826     * prefix, for example the app com.android.contacts would use names
5827     * like "com.android.contacts.ShowAll".
5828     *
5829     * @param name The name of the extra data, with package prefix.
5830     * @param value The String data value.
5831     *
5832     * @return Returns the same Intent object, for chaining multiple calls
5833     * into a single statement.
5834     *
5835     * @see #putExtras
5836     * @see #removeExtra
5837     * @see #getStringExtra(String)
5838     */
5839    public Intent putExtra(String name, String value) {
5840        if (mExtras == null) {
5841            mExtras = new Bundle();
5842        }
5843        mExtras.putString(name, value);
5844        return this;
5845    }
5846
5847    /**
5848     * Add extended data to the intent.  The name must include a package
5849     * prefix, for example the app com.android.contacts would use names
5850     * like "com.android.contacts.ShowAll".
5851     *
5852     * @param name The name of the extra data, with package prefix.
5853     * @param value The CharSequence data value.
5854     *
5855     * @return Returns the same Intent object, for chaining multiple calls
5856     * into a single statement.
5857     *
5858     * @see #putExtras
5859     * @see #removeExtra
5860     * @see #getCharSequenceExtra(String)
5861     */
5862    public Intent putExtra(String name, CharSequence value) {
5863        if (mExtras == null) {
5864            mExtras = new Bundle();
5865        }
5866        mExtras.putCharSequence(name, value);
5867        return this;
5868    }
5869
5870    /**
5871     * Add extended data to the intent.  The name must include a package
5872     * prefix, for example the app com.android.contacts would use names
5873     * like "com.android.contacts.ShowAll".
5874     *
5875     * @param name The name of the extra data, with package prefix.
5876     * @param value The Parcelable data value.
5877     *
5878     * @return Returns the same Intent object, for chaining multiple calls
5879     * into a single statement.
5880     *
5881     * @see #putExtras
5882     * @see #removeExtra
5883     * @see #getParcelableExtra(String)
5884     */
5885    public Intent putExtra(String name, Parcelable value) {
5886        if (mExtras == null) {
5887            mExtras = new Bundle();
5888        }
5889        mExtras.putParcelable(name, value);
5890        return this;
5891    }
5892
5893    /**
5894     * Add extended data to the intent.  The name must include a package
5895     * prefix, for example the app com.android.contacts would use names
5896     * like "com.android.contacts.ShowAll".
5897     *
5898     * @param name The name of the extra data, with package prefix.
5899     * @param value The Parcelable[] data value.
5900     *
5901     * @return Returns the same Intent object, for chaining multiple calls
5902     * into a single statement.
5903     *
5904     * @see #putExtras
5905     * @see #removeExtra
5906     * @see #getParcelableArrayExtra(String)
5907     */
5908    public Intent putExtra(String name, Parcelable[] value) {
5909        if (mExtras == null) {
5910            mExtras = new Bundle();
5911        }
5912        mExtras.putParcelableArray(name, value);
5913        return this;
5914    }
5915
5916    /**
5917     * Add extended data to the intent.  The name must include a package
5918     * prefix, for example the app com.android.contacts would use names
5919     * like "com.android.contacts.ShowAll".
5920     *
5921     * @param name The name of the extra data, with package prefix.
5922     * @param value The ArrayList<Parcelable> data value.
5923     *
5924     * @return Returns the same Intent object, for chaining multiple calls
5925     * into a single statement.
5926     *
5927     * @see #putExtras
5928     * @see #removeExtra
5929     * @see #getParcelableArrayListExtra(String)
5930     */
5931    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
5932        if (mExtras == null) {
5933            mExtras = new Bundle();
5934        }
5935        mExtras.putParcelableArrayList(name, value);
5936        return this;
5937    }
5938
5939    /**
5940     * Add extended data to the intent.  The name must include a package
5941     * prefix, for example the app com.android.contacts would use names
5942     * like "com.android.contacts.ShowAll".
5943     *
5944     * @param name The name of the extra data, with package prefix.
5945     * @param value The ArrayList<Integer> data value.
5946     *
5947     * @return Returns the same Intent object, for chaining multiple calls
5948     * into a single statement.
5949     *
5950     * @see #putExtras
5951     * @see #removeExtra
5952     * @see #getIntegerArrayListExtra(String)
5953     */
5954    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
5955        if (mExtras == null) {
5956            mExtras = new Bundle();
5957        }
5958        mExtras.putIntegerArrayList(name, value);
5959        return this;
5960    }
5961
5962    /**
5963     * Add extended data to the intent.  The name must include a package
5964     * prefix, for example the app com.android.contacts would use names
5965     * like "com.android.contacts.ShowAll".
5966     *
5967     * @param name The name of the extra data, with package prefix.
5968     * @param value The ArrayList<String> data value.
5969     *
5970     * @return Returns the same Intent object, for chaining multiple calls
5971     * into a single statement.
5972     *
5973     * @see #putExtras
5974     * @see #removeExtra
5975     * @see #getStringArrayListExtra(String)
5976     */
5977    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
5978        if (mExtras == null) {
5979            mExtras = new Bundle();
5980        }
5981        mExtras.putStringArrayList(name, value);
5982        return this;
5983    }
5984
5985    /**
5986     * Add extended data to the intent.  The name must include a package
5987     * prefix, for example the app com.android.contacts would use names
5988     * like "com.android.contacts.ShowAll".
5989     *
5990     * @param name The name of the extra data, with package prefix.
5991     * @param value The ArrayList<CharSequence> data value.
5992     *
5993     * @return Returns the same Intent object, for chaining multiple calls
5994     * into a single statement.
5995     *
5996     * @see #putExtras
5997     * @see #removeExtra
5998     * @see #getCharSequenceArrayListExtra(String)
5999     */
6000    public Intent putCharSequenceArrayListExtra(String name, ArrayList<CharSequence> value) {
6001        if (mExtras == null) {
6002            mExtras = new Bundle();
6003        }
6004        mExtras.putCharSequenceArrayList(name, value);
6005        return this;
6006    }
6007
6008    /**
6009     * Add extended data to the intent.  The name must include a package
6010     * prefix, for example the app com.android.contacts would use names
6011     * like "com.android.contacts.ShowAll".
6012     *
6013     * @param name The name of the extra data, with package prefix.
6014     * @param value The Serializable data value.
6015     *
6016     * @return Returns the same Intent object, for chaining multiple calls
6017     * into a single statement.
6018     *
6019     * @see #putExtras
6020     * @see #removeExtra
6021     * @see #getSerializableExtra(String)
6022     */
6023    public Intent putExtra(String name, Serializable value) {
6024        if (mExtras == null) {
6025            mExtras = new Bundle();
6026        }
6027        mExtras.putSerializable(name, value);
6028        return this;
6029    }
6030
6031    /**
6032     * Add extended data to the intent.  The name must include a package
6033     * prefix, for example the app com.android.contacts would use names
6034     * like "com.android.contacts.ShowAll".
6035     *
6036     * @param name The name of the extra data, with package prefix.
6037     * @param value The boolean array data value.
6038     *
6039     * @return Returns the same Intent object, for chaining multiple calls
6040     * into a single statement.
6041     *
6042     * @see #putExtras
6043     * @see #removeExtra
6044     * @see #getBooleanArrayExtra(String)
6045     */
6046    public Intent putExtra(String name, boolean[] value) {
6047        if (mExtras == null) {
6048            mExtras = new Bundle();
6049        }
6050        mExtras.putBooleanArray(name, value);
6051        return this;
6052    }
6053
6054    /**
6055     * Add extended data to the intent.  The name must include a package
6056     * prefix, for example the app com.android.contacts would use names
6057     * like "com.android.contacts.ShowAll".
6058     *
6059     * @param name The name of the extra data, with package prefix.
6060     * @param value The byte array data value.
6061     *
6062     * @return Returns the same Intent object, for chaining multiple calls
6063     * into a single statement.
6064     *
6065     * @see #putExtras
6066     * @see #removeExtra
6067     * @see #getByteArrayExtra(String)
6068     */
6069    public Intent putExtra(String name, byte[] value) {
6070        if (mExtras == null) {
6071            mExtras = new Bundle();
6072        }
6073        mExtras.putByteArray(name, value);
6074        return this;
6075    }
6076
6077    /**
6078     * Add extended data to the intent.  The name must include a package
6079     * prefix, for example the app com.android.contacts would use names
6080     * like "com.android.contacts.ShowAll".
6081     *
6082     * @param name The name of the extra data, with package prefix.
6083     * @param value The short array data value.
6084     *
6085     * @return Returns the same Intent object, for chaining multiple calls
6086     * into a single statement.
6087     *
6088     * @see #putExtras
6089     * @see #removeExtra
6090     * @see #getShortArrayExtra(String)
6091     */
6092    public Intent putExtra(String name, short[] value) {
6093        if (mExtras == null) {
6094            mExtras = new Bundle();
6095        }
6096        mExtras.putShortArray(name, value);
6097        return this;
6098    }
6099
6100    /**
6101     * Add extended data to the intent.  The name must include a package
6102     * prefix, for example the app com.android.contacts would use names
6103     * like "com.android.contacts.ShowAll".
6104     *
6105     * @param name The name of the extra data, with package prefix.
6106     * @param value The char array data value.
6107     *
6108     * @return Returns the same Intent object, for chaining multiple calls
6109     * into a single statement.
6110     *
6111     * @see #putExtras
6112     * @see #removeExtra
6113     * @see #getCharArrayExtra(String)
6114     */
6115    public Intent putExtra(String name, char[] value) {
6116        if (mExtras == null) {
6117            mExtras = new Bundle();
6118        }
6119        mExtras.putCharArray(name, value);
6120        return this;
6121    }
6122
6123    /**
6124     * Add extended data to the intent.  The name must include a package
6125     * prefix, for example the app com.android.contacts would use names
6126     * like "com.android.contacts.ShowAll".
6127     *
6128     * @param name The name of the extra data, with package prefix.
6129     * @param value The int array data value.
6130     *
6131     * @return Returns the same Intent object, for chaining multiple calls
6132     * into a single statement.
6133     *
6134     * @see #putExtras
6135     * @see #removeExtra
6136     * @see #getIntArrayExtra(String)
6137     */
6138    public Intent putExtra(String name, int[] value) {
6139        if (mExtras == null) {
6140            mExtras = new Bundle();
6141        }
6142        mExtras.putIntArray(name, value);
6143        return this;
6144    }
6145
6146    /**
6147     * Add extended data to the intent.  The name must include a package
6148     * prefix, for example the app com.android.contacts would use names
6149     * like "com.android.contacts.ShowAll".
6150     *
6151     * @param name The name of the extra data, with package prefix.
6152     * @param value The byte array data value.
6153     *
6154     * @return Returns the same Intent object, for chaining multiple calls
6155     * into a single statement.
6156     *
6157     * @see #putExtras
6158     * @see #removeExtra
6159     * @see #getLongArrayExtra(String)
6160     */
6161    public Intent putExtra(String name, long[] value) {
6162        if (mExtras == null) {
6163            mExtras = new Bundle();
6164        }
6165        mExtras.putLongArray(name, value);
6166        return this;
6167    }
6168
6169    /**
6170     * Add extended data to the intent.  The name must include a package
6171     * prefix, for example the app com.android.contacts would use names
6172     * like "com.android.contacts.ShowAll".
6173     *
6174     * @param name The name of the extra data, with package prefix.
6175     * @param value The float array data value.
6176     *
6177     * @return Returns the same Intent object, for chaining multiple calls
6178     * into a single statement.
6179     *
6180     * @see #putExtras
6181     * @see #removeExtra
6182     * @see #getFloatArrayExtra(String)
6183     */
6184    public Intent putExtra(String name, float[] value) {
6185        if (mExtras == null) {
6186            mExtras = new Bundle();
6187        }
6188        mExtras.putFloatArray(name, value);
6189        return this;
6190    }
6191
6192    /**
6193     * Add extended data to the intent.  The name must include a package
6194     * prefix, for example the app com.android.contacts would use names
6195     * like "com.android.contacts.ShowAll".
6196     *
6197     * @param name The name of the extra data, with package prefix.
6198     * @param value The double array data value.
6199     *
6200     * @return Returns the same Intent object, for chaining multiple calls
6201     * into a single statement.
6202     *
6203     * @see #putExtras
6204     * @see #removeExtra
6205     * @see #getDoubleArrayExtra(String)
6206     */
6207    public Intent putExtra(String name, double[] value) {
6208        if (mExtras == null) {
6209            mExtras = new Bundle();
6210        }
6211        mExtras.putDoubleArray(name, value);
6212        return this;
6213    }
6214
6215    /**
6216     * Add extended data to the intent.  The name must include a package
6217     * prefix, for example the app com.android.contacts would use names
6218     * like "com.android.contacts.ShowAll".
6219     *
6220     * @param name The name of the extra data, with package prefix.
6221     * @param value The String array data value.
6222     *
6223     * @return Returns the same Intent object, for chaining multiple calls
6224     * into a single statement.
6225     *
6226     * @see #putExtras
6227     * @see #removeExtra
6228     * @see #getStringArrayExtra(String)
6229     */
6230    public Intent putExtra(String name, String[] value) {
6231        if (mExtras == null) {
6232            mExtras = new Bundle();
6233        }
6234        mExtras.putStringArray(name, value);
6235        return this;
6236    }
6237
6238    /**
6239     * Add extended data to the intent.  The name must include a package
6240     * prefix, for example the app com.android.contacts would use names
6241     * like "com.android.contacts.ShowAll".
6242     *
6243     * @param name The name of the extra data, with package prefix.
6244     * @param value The CharSequence array data value.
6245     *
6246     * @return Returns the same Intent object, for chaining multiple calls
6247     * into a single statement.
6248     *
6249     * @see #putExtras
6250     * @see #removeExtra
6251     * @see #getCharSequenceArrayExtra(String)
6252     */
6253    public Intent putExtra(String name, CharSequence[] value) {
6254        if (mExtras == null) {
6255            mExtras = new Bundle();
6256        }
6257        mExtras.putCharSequenceArray(name, value);
6258        return this;
6259    }
6260
6261    /**
6262     * Add extended data to the intent.  The name must include a package
6263     * prefix, for example the app com.android.contacts would use names
6264     * like "com.android.contacts.ShowAll".
6265     *
6266     * @param name The name of the extra data, with package prefix.
6267     * @param value The Bundle data value.
6268     *
6269     * @return Returns the same Intent object, for chaining multiple calls
6270     * into a single statement.
6271     *
6272     * @see #putExtras
6273     * @see #removeExtra
6274     * @see #getBundleExtra(String)
6275     */
6276    public Intent putExtra(String name, Bundle value) {
6277        if (mExtras == null) {
6278            mExtras = new Bundle();
6279        }
6280        mExtras.putBundle(name, value);
6281        return this;
6282    }
6283
6284    /**
6285     * Add extended data to the intent.  The name must include a package
6286     * prefix, for example the app com.android.contacts would use names
6287     * like "com.android.contacts.ShowAll".
6288     *
6289     * @param name The name of the extra data, with package prefix.
6290     * @param value The IBinder data value.
6291     *
6292     * @return Returns the same Intent object, for chaining multiple calls
6293     * into a single statement.
6294     *
6295     * @see #putExtras
6296     * @see #removeExtra
6297     * @see #getIBinderExtra(String)
6298     *
6299     * @deprecated
6300     * @hide
6301     */
6302    @Deprecated
6303    public Intent putExtra(String name, IBinder value) {
6304        if (mExtras == null) {
6305            mExtras = new Bundle();
6306        }
6307        mExtras.putIBinder(name, value);
6308        return this;
6309    }
6310
6311    /**
6312     * Copy all extras in 'src' in to this intent.
6313     *
6314     * @param src Contains the extras to copy.
6315     *
6316     * @see #putExtra
6317     */
6318    public Intent putExtras(Intent src) {
6319        if (src.mExtras != null) {
6320            if (mExtras == null) {
6321                mExtras = new Bundle(src.mExtras);
6322            } else {
6323                mExtras.putAll(src.mExtras);
6324            }
6325        }
6326        return this;
6327    }
6328
6329    /**
6330     * Add a set of extended data to the intent.  The keys must include a package
6331     * prefix, for example the app com.android.contacts would use names
6332     * like "com.android.contacts.ShowAll".
6333     *
6334     * @param extras The Bundle of extras to add to this intent.
6335     *
6336     * @see #putExtra
6337     * @see #removeExtra
6338     */
6339    public Intent putExtras(Bundle extras) {
6340        if (mExtras == null) {
6341            mExtras = new Bundle();
6342        }
6343        mExtras.putAll(extras);
6344        return this;
6345    }
6346
6347    /**
6348     * Completely replace the extras in the Intent with the extras in the
6349     * given Intent.
6350     *
6351     * @param src The exact extras contained in this Intent are copied
6352     * into the target intent, replacing any that were previously there.
6353     */
6354    public Intent replaceExtras(Intent src) {
6355        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
6356        return this;
6357    }
6358
6359    /**
6360     * Completely replace the extras in the Intent with the given Bundle of
6361     * extras.
6362     *
6363     * @param extras The new set of extras in the Intent, or null to erase
6364     * all extras.
6365     */
6366    public Intent replaceExtras(Bundle extras) {
6367        mExtras = extras != null ? new Bundle(extras) : null;
6368        return this;
6369    }
6370
6371    /**
6372     * Remove extended data from the intent.
6373     *
6374     * @see #putExtra
6375     */
6376    public void removeExtra(String name) {
6377        if (mExtras != null) {
6378            mExtras.remove(name);
6379            if (mExtras.size() == 0) {
6380                mExtras = null;
6381            }
6382        }
6383    }
6384
6385    /**
6386     * Set special flags controlling how this intent is handled.  Most values
6387     * here depend on the type of component being executed by the Intent,
6388     * specifically the FLAG_ACTIVITY_* flags are all for use with
6389     * {@link Context#startActivity Context.startActivity()} and the
6390     * FLAG_RECEIVER_* flags are all for use with
6391     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
6392     *
6393     * <p>See the
6394     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
6395     * Stack</a> documentation for important information on how some of these options impact
6396     * the behavior of your application.
6397     *
6398     * @param flags The desired flags.
6399     *
6400     * @return Returns the same Intent object, for chaining multiple calls
6401     * into a single statement.
6402     *
6403     * @see #getFlags
6404     * @see #addFlags
6405     *
6406     * @see #FLAG_GRANT_READ_URI_PERMISSION
6407     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
6408     * @see #FLAG_GRANT_PERSISTABLE_URI_PERMISSION
6409     * @see #FLAG_GRANT_PREFIX_URI_PERMISSION
6410     * @see #FLAG_DEBUG_LOG_RESOLUTION
6411     * @see #FLAG_FROM_BACKGROUND
6412     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
6413     * @see #FLAG_ACTIVITY_CLEAR_TASK
6414     * @see #FLAG_ACTIVITY_CLEAR_TOP
6415     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
6416     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
6417     * @see #FLAG_ACTIVITY_FORWARD_RESULT
6418     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
6419     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
6420     * @see #FLAG_ACTIVITY_NEW_DOCUMENT
6421     * @see #FLAG_ACTIVITY_NEW_TASK
6422     * @see #FLAG_ACTIVITY_NO_ANIMATION
6423     * @see #FLAG_ACTIVITY_NO_HISTORY
6424     * @see #FLAG_ACTIVITY_NO_USER_ACTION
6425     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
6426     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
6427     * @see #FLAG_ACTIVITY_REORDER_TO_FRONT
6428     * @see #FLAG_ACTIVITY_SINGLE_TOP
6429     * @see #FLAG_ACTIVITY_TASK_ON_HOME
6430     * @see #FLAG_RECEIVER_REGISTERED_ONLY
6431     */
6432    public Intent setFlags(int flags) {
6433        mFlags = flags;
6434        return this;
6435    }
6436
6437    /**
6438     * Add additional flags to the intent (or with existing flags
6439     * value).
6440     *
6441     * @param flags The new flags to set.
6442     *
6443     * @return Returns the same Intent object, for chaining multiple calls
6444     * into a single statement.
6445     *
6446     * @see #setFlags
6447     */
6448    public Intent addFlags(int flags) {
6449        mFlags |= flags;
6450        return this;
6451    }
6452
6453    /**
6454     * (Usually optional) Set an explicit application package name that limits
6455     * the components this Intent will resolve to.  If left to the default
6456     * value of null, all components in all applications will considered.
6457     * If non-null, the Intent can only match the components in the given
6458     * application package.
6459     *
6460     * @param packageName The name of the application package to handle the
6461     * intent, or null to allow any application package.
6462     *
6463     * @return Returns the same Intent object, for chaining multiple calls
6464     * into a single statement.
6465     *
6466     * @see #getPackage
6467     * @see #resolveActivity
6468     */
6469    public Intent setPackage(String packageName) {
6470        if (packageName != null && mSelector != null) {
6471            throw new IllegalArgumentException(
6472                    "Can't set package name when selector is already set");
6473        }
6474        mPackage = packageName;
6475        return this;
6476    }
6477
6478    /**
6479     * (Usually optional) Explicitly set the component to handle the intent.
6480     * If left with the default value of null, the system will determine the
6481     * appropriate class to use based on the other fields (action, data,
6482     * type, categories) in the Intent.  If this class is defined, the
6483     * specified class will always be used regardless of the other fields.  You
6484     * should only set this value when you know you absolutely want a specific
6485     * class to be used; otherwise it is better to let the system find the
6486     * appropriate class so that you will respect the installed applications
6487     * and user preferences.
6488     *
6489     * @param component The name of the application component to handle the
6490     * intent, or null to let the system find one for you.
6491     *
6492     * @return Returns the same Intent object, for chaining multiple calls
6493     * into a single statement.
6494     *
6495     * @see #setClass
6496     * @see #setClassName(Context, String)
6497     * @see #setClassName(String, String)
6498     * @see #getComponent
6499     * @see #resolveActivity
6500     */
6501    public Intent setComponent(ComponentName component) {
6502        mComponent = component;
6503        return this;
6504    }
6505
6506    /**
6507     * Convenience for calling {@link #setComponent} with an
6508     * explicit class name.
6509     *
6510     * @param packageContext A Context of the application package implementing
6511     * this class.
6512     * @param className The name of a class inside of the application package
6513     * that will be used as the component for this Intent.
6514     *
6515     * @return Returns the same Intent object, for chaining multiple calls
6516     * into a single statement.
6517     *
6518     * @see #setComponent
6519     * @see #setClass
6520     */
6521    public Intent setClassName(Context packageContext, String className) {
6522        mComponent = new ComponentName(packageContext, className);
6523        return this;
6524    }
6525
6526    /**
6527     * Convenience for calling {@link #setComponent} with an
6528     * explicit application package name and class name.
6529     *
6530     * @param packageName The name of the package implementing the desired
6531     * component.
6532     * @param className The name of a class inside of the application package
6533     * that will be used as the component for this Intent.
6534     *
6535     * @return Returns the same Intent object, for chaining multiple calls
6536     * into a single statement.
6537     *
6538     * @see #setComponent
6539     * @see #setClass
6540     */
6541    public Intent setClassName(String packageName, String className) {
6542        mComponent = new ComponentName(packageName, className);
6543        return this;
6544    }
6545
6546    /**
6547     * Convenience for calling {@link #setComponent(ComponentName)} with the
6548     * name returned by a {@link Class} object.
6549     *
6550     * @param packageContext A Context of the application package implementing
6551     * this class.
6552     * @param cls The class name to set, equivalent to
6553     *            <code>setClassName(context, cls.getName())</code>.
6554     *
6555     * @return Returns the same Intent object, for chaining multiple calls
6556     * into a single statement.
6557     *
6558     * @see #setComponent
6559     */
6560    public Intent setClass(Context packageContext, Class<?> cls) {
6561        mComponent = new ComponentName(packageContext, cls);
6562        return this;
6563    }
6564
6565    /**
6566     * Set the bounds of the sender of this intent, in screen coordinates.  This can be
6567     * used as a hint to the receiver for animations and the like.  Null means that there
6568     * is no source bounds.
6569     */
6570    public void setSourceBounds(Rect r) {
6571        if (r != null) {
6572            mSourceBounds = new Rect(r);
6573        } else {
6574            mSourceBounds = null;
6575        }
6576    }
6577
6578    /** @hide */
6579    @IntDef(flag = true,
6580            value = {
6581                    FILL_IN_ACTION,
6582                    FILL_IN_DATA,
6583                    FILL_IN_CATEGORIES,
6584                    FILL_IN_COMPONENT,
6585                    FILL_IN_PACKAGE,
6586                    FILL_IN_SOURCE_BOUNDS,
6587                    FILL_IN_SELECTOR,
6588                    FILL_IN_CLIP_DATA
6589            })
6590    @Retention(RetentionPolicy.SOURCE)
6591    public @interface FillInFlags {}
6592
6593    /**
6594     * Use with {@link #fillIn} to allow the current action value to be
6595     * overwritten, even if it is already set.
6596     */
6597    public static final int FILL_IN_ACTION = 1<<0;
6598
6599    /**
6600     * Use with {@link #fillIn} to allow the current data or type value
6601     * overwritten, even if it is already set.
6602     */
6603    public static final int FILL_IN_DATA = 1<<1;
6604
6605    /**
6606     * Use with {@link #fillIn} to allow the current categories to be
6607     * overwritten, even if they are already set.
6608     */
6609    public static final int FILL_IN_CATEGORIES = 1<<2;
6610
6611    /**
6612     * Use with {@link #fillIn} to allow the current component value to be
6613     * overwritten, even if it is already set.
6614     */
6615    public static final int FILL_IN_COMPONENT = 1<<3;
6616
6617    /**
6618     * Use with {@link #fillIn} to allow the current package value to be
6619     * overwritten, even if it is already set.
6620     */
6621    public static final int FILL_IN_PACKAGE = 1<<4;
6622
6623    /**
6624     * Use with {@link #fillIn} to allow the current bounds rectangle to be
6625     * overwritten, even if it is already set.
6626     */
6627    public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
6628
6629    /**
6630     * Use with {@link #fillIn} to allow the current selector to be
6631     * overwritten, even if it is already set.
6632     */
6633    public static final int FILL_IN_SELECTOR = 1<<6;
6634
6635    /**
6636     * Use with {@link #fillIn} to allow the current ClipData to be
6637     * overwritten, even if it is already set.
6638     */
6639    public static final int FILL_IN_CLIP_DATA = 1<<7;
6640
6641    /**
6642     * Copy the contents of <var>other</var> in to this object, but only
6643     * where fields are not defined by this object.  For purposes of a field
6644     * being defined, the following pieces of data in the Intent are
6645     * considered to be separate fields:
6646     *
6647     * <ul>
6648     * <li> action, as set by {@link #setAction}.
6649     * <li> data Uri and MIME type, as set by {@link #setData(Uri)},
6650     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
6651     * <li> categories, as set by {@link #addCategory}.
6652     * <li> package, as set by {@link #setPackage}.
6653     * <li> component, as set by {@link #setComponent(ComponentName)} or
6654     * related methods.
6655     * <li> source bounds, as set by {@link #setSourceBounds}.
6656     * <li> selector, as set by {@link #setSelector(Intent)}.
6657     * <li> clip data, as set by {@link #setClipData(ClipData)}.
6658     * <li> each top-level name in the associated extras.
6659     * </ul>
6660     *
6661     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
6662     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
6663     * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS},
6664     * {@link #FILL_IN_SELECTOR}, and {@link #FILL_IN_CLIP_DATA} to override
6665     * the restriction where the corresponding field will not be replaced if
6666     * it is already set.
6667     *
6668     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT}
6669     * is explicitly specified.  The selector will only be copied if
6670     * {@link #FILL_IN_SELECTOR} is explicitly specified.
6671     *
6672     * <p>For example, consider Intent A with {data="foo", categories="bar"}
6673     * and Intent B with {action="gotit", data-type="some/thing",
6674     * categories="one","two"}.
6675     *
6676     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
6677     * containing: {action="gotit", data-type="some/thing",
6678     * categories="bar"}.
6679     *
6680     * @param other Another Intent whose values are to be used to fill in
6681     * the current one.
6682     * @param flags Options to control which fields can be filled in.
6683     *
6684     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
6685     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
6686     * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS},
6687     * {@link #FILL_IN_SELECTOR} and {@link #FILL_IN_CLIP_DATA indicating which fields were
6688     * changed.
6689     */
6690    @FillInFlags
6691    public int fillIn(Intent other, @FillInFlags int flags) {
6692        int changes = 0;
6693        boolean mayHaveCopiedUris = false;
6694        if (other.mAction != null
6695                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
6696            mAction = other.mAction;
6697            changes |= FILL_IN_ACTION;
6698        }
6699        if ((other.mData != null || other.mType != null)
6700                && ((mData == null && mType == null)
6701                        || (flags&FILL_IN_DATA) != 0)) {
6702            mData = other.mData;
6703            mType = other.mType;
6704            changes |= FILL_IN_DATA;
6705            mayHaveCopiedUris = true;
6706        }
6707        if (other.mCategories != null
6708                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
6709            if (other.mCategories != null) {
6710                mCategories = new ArraySet<String>(other.mCategories);
6711            }
6712            changes |= FILL_IN_CATEGORIES;
6713        }
6714        if (other.mPackage != null
6715                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
6716            // Only do this if mSelector is not set.
6717            if (mSelector == null) {
6718                mPackage = other.mPackage;
6719                changes |= FILL_IN_PACKAGE;
6720            }
6721        }
6722        // Selector is special: it can only be set if explicitly allowed,
6723        // for the same reason as the component name.
6724        if (other.mSelector != null && (flags&FILL_IN_SELECTOR) != 0) {
6725            if (mPackage == null) {
6726                mSelector = new Intent(other.mSelector);
6727                mPackage = null;
6728                changes |= FILL_IN_SELECTOR;
6729            }
6730        }
6731        if (other.mClipData != null
6732                && (mClipData == null || (flags&FILL_IN_CLIP_DATA) != 0)) {
6733            mClipData = other.mClipData;
6734            changes |= FILL_IN_CLIP_DATA;
6735            mayHaveCopiedUris = true;
6736        }
6737        // Component is special: it can -only- be set if explicitly allowed,
6738        // since otherwise the sender could force the intent somewhere the
6739        // originator didn't intend.
6740        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
6741            mComponent = other.mComponent;
6742            changes |= FILL_IN_COMPONENT;
6743        }
6744        mFlags |= other.mFlags;
6745        if (other.mSourceBounds != null
6746                && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
6747            mSourceBounds = new Rect(other.mSourceBounds);
6748            changes |= FILL_IN_SOURCE_BOUNDS;
6749        }
6750        if (mExtras == null) {
6751            if (other.mExtras != null) {
6752                mExtras = new Bundle(other.mExtras);
6753                mayHaveCopiedUris = true;
6754            }
6755        } else if (other.mExtras != null) {
6756            try {
6757                Bundle newb = new Bundle(other.mExtras);
6758                newb.putAll(mExtras);
6759                mExtras = newb;
6760                mayHaveCopiedUris = true;
6761            } catch (RuntimeException e) {
6762                // Modifying the extras can cause us to unparcel the contents
6763                // of the bundle, and if we do this in the system process that
6764                // may fail.  We really should handle this (i.e., the Bundle
6765                // impl shouldn't be on top of a plain map), but for now just
6766                // ignore it and keep the original contents. :(
6767                Log.w("Intent", "Failure filling in extras", e);
6768            }
6769        }
6770        if (mayHaveCopiedUris && mContentUserHint == UserHandle.USER_CURRENT
6771                && other.mContentUserHint != UserHandle.USER_CURRENT) {
6772            mContentUserHint = other.mContentUserHint;
6773        }
6774        return changes;
6775    }
6776
6777    /**
6778     * Wrapper class holding an Intent and implementing comparisons on it for
6779     * the purpose of filtering.  The class implements its
6780     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
6781     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
6782     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
6783     * on the wrapped Intent.
6784     */
6785    public static final class FilterComparison {
6786        private final Intent mIntent;
6787        private final int mHashCode;
6788
6789        public FilterComparison(Intent intent) {
6790            mIntent = intent;
6791            mHashCode = intent.filterHashCode();
6792        }
6793
6794        /**
6795         * Return the Intent that this FilterComparison represents.
6796         * @return Returns the Intent held by the FilterComparison.  Do
6797         * not modify!
6798         */
6799        public Intent getIntent() {
6800            return mIntent;
6801        }
6802
6803        @Override
6804        public boolean equals(Object obj) {
6805            if (obj instanceof FilterComparison) {
6806                Intent other = ((FilterComparison)obj).mIntent;
6807                return mIntent.filterEquals(other);
6808            }
6809            return false;
6810        }
6811
6812        @Override
6813        public int hashCode() {
6814            return mHashCode;
6815        }
6816    }
6817
6818    /**
6819     * Determine if two intents are the same for the purposes of intent
6820     * resolution (filtering). That is, if their action, data, type,
6821     * class, and categories are the same.  This does <em>not</em> compare
6822     * any extra data included in the intents.
6823     *
6824     * @param other The other Intent to compare against.
6825     *
6826     * @return Returns true if action, data, type, class, and categories
6827     *         are the same.
6828     */
6829    public boolean filterEquals(Intent other) {
6830        if (other == null) {
6831            return false;
6832        }
6833        if (!Objects.equals(this.mAction, other.mAction)) return false;
6834        if (!Objects.equals(this.mData, other.mData)) return false;
6835        if (!Objects.equals(this.mType, other.mType)) return false;
6836        if (!Objects.equals(this.mPackage, other.mPackage)) return false;
6837        if (!Objects.equals(this.mComponent, other.mComponent)) return false;
6838        if (!Objects.equals(this.mCategories, other.mCategories)) return false;
6839
6840        return true;
6841    }
6842
6843    /**
6844     * Generate hash code that matches semantics of filterEquals().
6845     *
6846     * @return Returns the hash value of the action, data, type, class, and
6847     *         categories.
6848     *
6849     * @see #filterEquals
6850     */
6851    public int filterHashCode() {
6852        int code = 0;
6853        if (mAction != null) {
6854            code += mAction.hashCode();
6855        }
6856        if (mData != null) {
6857            code += mData.hashCode();
6858        }
6859        if (mType != null) {
6860            code += mType.hashCode();
6861        }
6862        if (mPackage != null) {
6863            code += mPackage.hashCode();
6864        }
6865        if (mComponent != null) {
6866            code += mComponent.hashCode();
6867        }
6868        if (mCategories != null) {
6869            code += mCategories.hashCode();
6870        }
6871        return code;
6872    }
6873
6874    @Override
6875    public String toString() {
6876        StringBuilder b = new StringBuilder(128);
6877
6878        b.append("Intent { ");
6879        toShortString(b, true, true, true, false);
6880        b.append(" }");
6881
6882        return b.toString();
6883    }
6884
6885    /** @hide */
6886    public String toInsecureString() {
6887        StringBuilder b = new StringBuilder(128);
6888
6889        b.append("Intent { ");
6890        toShortString(b, false, true, true, false);
6891        b.append(" }");
6892
6893        return b.toString();
6894    }
6895
6896    /** @hide */
6897    public String toInsecureStringWithClip() {
6898        StringBuilder b = new StringBuilder(128);
6899
6900        b.append("Intent { ");
6901        toShortString(b, false, true, true, true);
6902        b.append(" }");
6903
6904        return b.toString();
6905    }
6906
6907    /** @hide */
6908    public String toShortString(boolean secure, boolean comp, boolean extras, boolean clip) {
6909        StringBuilder b = new StringBuilder(128);
6910        toShortString(b, secure, comp, extras, clip);
6911        return b.toString();
6912    }
6913
6914    /** @hide */
6915    public void toShortString(StringBuilder b, boolean secure, boolean comp, boolean extras,
6916            boolean clip) {
6917        boolean first = true;
6918        if (mAction != null) {
6919            b.append("act=").append(mAction);
6920            first = false;
6921        }
6922        if (mCategories != null) {
6923            if (!first) {
6924                b.append(' ');
6925            }
6926            first = false;
6927            b.append("cat=[");
6928            for (int i=0; i<mCategories.size(); i++) {
6929                if (i > 0) b.append(',');
6930                b.append(mCategories.valueAt(i));
6931            }
6932            b.append("]");
6933        }
6934        if (mData != null) {
6935            if (!first) {
6936                b.append(' ');
6937            }
6938            first = false;
6939            b.append("dat=");
6940            if (secure) {
6941                b.append(mData.toSafeString());
6942            } else {
6943                b.append(mData);
6944            }
6945        }
6946        if (mType != null) {
6947            if (!first) {
6948                b.append(' ');
6949            }
6950            first = false;
6951            b.append("typ=").append(mType);
6952        }
6953        if (mFlags != 0) {
6954            if (!first) {
6955                b.append(' ');
6956            }
6957            first = false;
6958            b.append("flg=0x").append(Integer.toHexString(mFlags));
6959        }
6960        if (mPackage != null) {
6961            if (!first) {
6962                b.append(' ');
6963            }
6964            first = false;
6965            b.append("pkg=").append(mPackage);
6966        }
6967        if (comp && mComponent != null) {
6968            if (!first) {
6969                b.append(' ');
6970            }
6971            first = false;
6972            b.append("cmp=").append(mComponent.flattenToShortString());
6973        }
6974        if (mSourceBounds != null) {
6975            if (!first) {
6976                b.append(' ');
6977            }
6978            first = false;
6979            b.append("bnds=").append(mSourceBounds.toShortString());
6980        }
6981        if (mClipData != null) {
6982            if (!first) {
6983                b.append(' ');
6984            }
6985            first = false;
6986            if (clip) {
6987                b.append("clip={");
6988                mClipData.toShortString(b);
6989                b.append('}');
6990            } else {
6991                b.append("(has clip)");
6992            }
6993        }
6994        if (extras && mExtras != null) {
6995            if (!first) {
6996                b.append(' ');
6997            }
6998            first = false;
6999            b.append("(has extras)");
7000        }
7001        if (mContentUserHint != UserHandle.USER_CURRENT) {
7002            if (!first) {
7003                b.append(' ');
7004            }
7005            first = false;
7006            b.append("u=").append(mContentUserHint);
7007        }
7008        if (mSelector != null) {
7009            b.append(" sel=");
7010            mSelector.toShortString(b, secure, comp, extras, clip);
7011            b.append("}");
7012        }
7013    }
7014
7015    /**
7016     * Call {@link #toUri} with 0 flags.
7017     * @deprecated Use {@link #toUri} instead.
7018     */
7019    @Deprecated
7020    public String toURI() {
7021        return toUri(0);
7022    }
7023
7024    /**
7025     * Convert this Intent into a String holding a URI representation of it.
7026     * The returned URI string has been properly URI encoded, so it can be
7027     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
7028     * Intent's data as the base URI, with an additional fragment describing
7029     * the action, categories, type, flags, package, component, and extras.
7030     *
7031     * <p>You can convert the returned string back to an Intent with
7032     * {@link #getIntent}.
7033     *
7034     * @param flags Additional operating flags.  Either 0 or
7035     * {@link #URI_INTENT_SCHEME}.
7036     *
7037     * @return Returns a URI encoding URI string describing the entire contents
7038     * of the Intent.
7039     */
7040    public String toUri(int flags) {
7041        StringBuilder uri = new StringBuilder(128);
7042        String scheme = null;
7043        if (mData != null) {
7044            String data = mData.toString();
7045            if ((flags&URI_INTENT_SCHEME) != 0) {
7046                final int N = data.length();
7047                for (int i=0; i<N; i++) {
7048                    char c = data.charAt(i);
7049                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
7050                            || c == '.' || c == '-') {
7051                        continue;
7052                    }
7053                    if (c == ':' && i > 0) {
7054                        // Valid scheme.
7055                        scheme = data.substring(0, i);
7056                        uri.append("intent:");
7057                        data = data.substring(i+1);
7058                        break;
7059                    }
7060
7061                    // No scheme.
7062                    break;
7063                }
7064            }
7065            uri.append(data);
7066
7067        } else if ((flags&URI_INTENT_SCHEME) != 0) {
7068            uri.append("intent:");
7069        }
7070
7071        uri.append("#Intent;");
7072
7073        toUriInner(uri, scheme, flags);
7074        if (mSelector != null) {
7075            uri.append("SEL;");
7076            // Note that for now we are not going to try to handle the
7077            // data part; not clear how to represent this as a URI, and
7078            // not much utility in it.
7079            mSelector.toUriInner(uri, null, flags);
7080        }
7081
7082        uri.append("end");
7083
7084        return uri.toString();
7085    }
7086
7087    private void toUriInner(StringBuilder uri, String scheme, int flags) {
7088        if (scheme != null) {
7089            uri.append("scheme=").append(scheme).append(';');
7090        }
7091        if (mAction != null) {
7092            uri.append("action=").append(Uri.encode(mAction)).append(';');
7093        }
7094        if (mCategories != null) {
7095            for (int i=0; i<mCategories.size(); i++) {
7096                uri.append("category=").append(Uri.encode(mCategories.valueAt(i))).append(';');
7097            }
7098        }
7099        if (mType != null) {
7100            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
7101        }
7102        if (mFlags != 0) {
7103            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
7104        }
7105        if (mPackage != null) {
7106            uri.append("package=").append(Uri.encode(mPackage)).append(';');
7107        }
7108        if (mComponent != null) {
7109            uri.append("component=").append(Uri.encode(
7110                    mComponent.flattenToShortString(), "/")).append(';');
7111        }
7112        if (mSourceBounds != null) {
7113            uri.append("sourceBounds=")
7114                    .append(Uri.encode(mSourceBounds.flattenToString()))
7115                    .append(';');
7116        }
7117        if (mExtras != null) {
7118            for (String key : mExtras.keySet()) {
7119                final Object value = mExtras.get(key);
7120                char entryType =
7121                        value instanceof String    ? 'S' :
7122                        value instanceof Boolean   ? 'B' :
7123                        value instanceof Byte      ? 'b' :
7124                        value instanceof Character ? 'c' :
7125                        value instanceof Double    ? 'd' :
7126                        value instanceof Float     ? 'f' :
7127                        value instanceof Integer   ? 'i' :
7128                        value instanceof Long      ? 'l' :
7129                        value instanceof Short     ? 's' :
7130                        '\0';
7131
7132                if (entryType != '\0') {
7133                    uri.append(entryType);
7134                    uri.append('.');
7135                    uri.append(Uri.encode(key));
7136                    uri.append('=');
7137                    uri.append(Uri.encode(value.toString()));
7138                    uri.append(';');
7139                }
7140            }
7141        }
7142    }
7143
7144    public int describeContents() {
7145        return (mExtras != null) ? mExtras.describeContents() : 0;
7146    }
7147
7148    public void writeToParcel(Parcel out, int flags) {
7149        out.writeString(mAction);
7150        Uri.writeToParcel(out, mData);
7151        out.writeString(mType);
7152        out.writeInt(mFlags);
7153        out.writeString(mPackage);
7154        ComponentName.writeToParcel(mComponent, out);
7155
7156        if (mSourceBounds != null) {
7157            out.writeInt(1);
7158            mSourceBounds.writeToParcel(out, flags);
7159        } else {
7160            out.writeInt(0);
7161        }
7162
7163        if (mCategories != null) {
7164            final int N = mCategories.size();
7165            out.writeInt(N);
7166            for (int i=0; i<N; i++) {
7167                out.writeString(mCategories.valueAt(i));
7168            }
7169        } else {
7170            out.writeInt(0);
7171        }
7172
7173        if (mSelector != null) {
7174            out.writeInt(1);
7175            mSelector.writeToParcel(out, flags);
7176        } else {
7177            out.writeInt(0);
7178        }
7179
7180        if (mClipData != null) {
7181            out.writeInt(1);
7182            mClipData.writeToParcel(out, flags);
7183        } else {
7184            out.writeInt(0);
7185        }
7186        out.writeInt(mContentUserHint);
7187        out.writeBundle(mExtras);
7188    }
7189
7190    public static final Parcelable.Creator<Intent> CREATOR
7191            = new Parcelable.Creator<Intent>() {
7192        public Intent createFromParcel(Parcel in) {
7193            return new Intent(in);
7194        }
7195        public Intent[] newArray(int size) {
7196            return new Intent[size];
7197        }
7198    };
7199
7200    /** @hide */
7201    protected Intent(Parcel in) {
7202        readFromParcel(in);
7203    }
7204
7205    public void readFromParcel(Parcel in) {
7206        setAction(in.readString());
7207        mData = Uri.CREATOR.createFromParcel(in);
7208        mType = in.readString();
7209        mFlags = in.readInt();
7210        mPackage = in.readString();
7211        mComponent = ComponentName.readFromParcel(in);
7212
7213        if (in.readInt() != 0) {
7214            mSourceBounds = Rect.CREATOR.createFromParcel(in);
7215        }
7216
7217        int N = in.readInt();
7218        if (N > 0) {
7219            mCategories = new ArraySet<String>();
7220            int i;
7221            for (i=0; i<N; i++) {
7222                mCategories.add(in.readString().intern());
7223            }
7224        } else {
7225            mCategories = null;
7226        }
7227
7228        if (in.readInt() != 0) {
7229            mSelector = new Intent(in);
7230        }
7231
7232        if (in.readInt() != 0) {
7233            mClipData = new ClipData(in);
7234        }
7235        mContentUserHint = in.readInt();
7236        mExtras = in.readBundle();
7237    }
7238
7239    /**
7240     * Parses the "intent" element (and its children) from XML and instantiates
7241     * an Intent object.  The given XML parser should be located at the tag
7242     * where parsing should start (often named "intent"), from which the
7243     * basic action, data, type, and package and class name will be
7244     * retrieved.  The function will then parse in to any child elements,
7245     * looking for <category android:name="xxx"> tags to add categories and
7246     * <extra android:name="xxx" android:value="yyy"> to attach extra data
7247     * to the intent.
7248     *
7249     * @param resources The Resources to use when inflating resources.
7250     * @param parser The XML parser pointing at an "intent" tag.
7251     * @param attrs The AttributeSet interface for retrieving extended
7252     * attribute data at the current <var>parser</var> location.
7253     * @return An Intent object matching the XML data.
7254     * @throws XmlPullParserException If there was an XML parsing error.
7255     * @throws IOException If there was an I/O error.
7256     */
7257    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
7258            throws XmlPullParserException, IOException {
7259        Intent intent = new Intent();
7260
7261        TypedArray sa = resources.obtainAttributes(attrs,
7262                com.android.internal.R.styleable.Intent);
7263
7264        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
7265
7266        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
7267        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
7268        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
7269
7270        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
7271        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
7272        if (packageName != null && className != null) {
7273            intent.setComponent(new ComponentName(packageName, className));
7274        }
7275
7276        sa.recycle();
7277
7278        int outerDepth = parser.getDepth();
7279        int type;
7280        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
7281               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
7282            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
7283                continue;
7284            }
7285
7286            String nodeName = parser.getName();
7287            if (nodeName.equals(TAG_CATEGORIES)) {
7288                sa = resources.obtainAttributes(attrs,
7289                        com.android.internal.R.styleable.IntentCategory);
7290                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
7291                sa.recycle();
7292
7293                if (cat != null) {
7294                    intent.addCategory(cat);
7295                }
7296                XmlUtils.skipCurrentTag(parser);
7297
7298            } else if (nodeName.equals(TAG_EXTRA)) {
7299                if (intent.mExtras == null) {
7300                    intent.mExtras = new Bundle();
7301                }
7302                resources.parseBundleExtra(TAG_EXTRA, attrs, intent.mExtras);
7303                XmlUtils.skipCurrentTag(parser);
7304
7305            } else {
7306                XmlUtils.skipCurrentTag(parser);
7307            }
7308        }
7309
7310        return intent;
7311    }
7312
7313    /** @hide */
7314    public void saveToXml(XmlSerializer out) throws IOException {
7315        if (mAction != null) {
7316            out.attribute(null, ATTR_ACTION, mAction);
7317        }
7318        if (mData != null) {
7319            out.attribute(null, ATTR_DATA, mData.toString());
7320        }
7321        if (mType != null) {
7322            out.attribute(null, ATTR_TYPE, mType);
7323        }
7324        if (mComponent != null) {
7325            out.attribute(null, ATTR_COMPONENT, mComponent.flattenToShortString());
7326        }
7327        out.attribute(null, ATTR_FLAGS, Integer.toHexString(getFlags()));
7328
7329        if (mCategories != null) {
7330            out.startTag(null, TAG_CATEGORIES);
7331            for (int categoryNdx = mCategories.size() - 1; categoryNdx >= 0; --categoryNdx) {
7332                out.attribute(null, ATTR_CATEGORY, mCategories.valueAt(categoryNdx));
7333            }
7334            out.endTag(null, TAG_CATEGORIES);
7335        }
7336    }
7337
7338    /** @hide */
7339    public static Intent restoreFromXml(XmlPullParser in) throws IOException,
7340            XmlPullParserException {
7341        Intent intent = new Intent();
7342        final int outerDepth = in.getDepth();
7343
7344        int attrCount = in.getAttributeCount();
7345        for (int attrNdx = attrCount - 1; attrNdx >= 0; --attrNdx) {
7346            final String attrName = in.getAttributeName(attrNdx);
7347            final String attrValue = in.getAttributeValue(attrNdx);
7348            if (ATTR_ACTION.equals(attrName)) {
7349                intent.setAction(attrValue);
7350            } else if (ATTR_DATA.equals(attrName)) {
7351                intent.setData(Uri.parse(attrValue));
7352            } else if (ATTR_TYPE.equals(attrName)) {
7353                intent.setType(attrValue);
7354            } else if (ATTR_COMPONENT.equals(attrName)) {
7355                intent.setComponent(ComponentName.unflattenFromString(attrValue));
7356            } else if (ATTR_FLAGS.equals(attrName)) {
7357                intent.setFlags(Integer.valueOf(attrValue, 16));
7358            } else {
7359                Log.e("Intent", "restoreFromXml: unknown attribute=" + attrName);
7360            }
7361        }
7362
7363        int event;
7364        String name;
7365        while (((event = in.next()) != XmlPullParser.END_DOCUMENT) &&
7366                (event != XmlPullParser.END_TAG || in.getDepth() < outerDepth)) {
7367            if (event == XmlPullParser.START_TAG) {
7368                name = in.getName();
7369                if (TAG_CATEGORIES.equals(name)) {
7370                    attrCount = in.getAttributeCount();
7371                    for (int attrNdx = attrCount - 1; attrNdx >= 0; --attrNdx) {
7372                        intent.addCategory(in.getAttributeValue(attrNdx));
7373                    }
7374                } else {
7375                    Log.w("Intent", "restoreFromXml: unknown name=" + name);
7376                    XmlUtils.skipCurrentTag(in);
7377                }
7378            }
7379        }
7380
7381        return intent;
7382    }
7383
7384    /**
7385     * Normalize a MIME data type.
7386     *
7387     * <p>A normalized MIME type has white-space trimmed,
7388     * content-type parameters removed, and is lower-case.
7389     * This aligns the type with Android best practices for
7390     * intent filtering.
7391     *
7392     * <p>For example, "text/plain; charset=utf-8" becomes "text/plain".
7393     * "text/x-vCard" becomes "text/x-vcard".
7394     *
7395     * <p>All MIME types received from outside Android (such as user input,
7396     * or external sources like Bluetooth, NFC, or the Internet) should
7397     * be normalized before they are used to create an Intent.
7398     *
7399     * @param type MIME data type to normalize
7400     * @return normalized MIME data type, or null if the input was null
7401     * @see #setType
7402     * @see #setTypeAndNormalize
7403     */
7404    public static String normalizeMimeType(String type) {
7405        if (type == null) {
7406            return null;
7407        }
7408
7409        type = type.trim().toLowerCase(Locale.ROOT);
7410
7411        final int semicolonIndex = type.indexOf(';');
7412        if (semicolonIndex != -1) {
7413            type = type.substring(0, semicolonIndex);
7414        }
7415        return type;
7416    }
7417
7418    /**
7419     * Prepare this {@link Intent} to leave an app process.
7420     *
7421     * @hide
7422     */
7423    public void prepareToLeaveProcess() {
7424        setAllowFds(false);
7425
7426        if (mSelector != null) {
7427            mSelector.prepareToLeaveProcess();
7428        }
7429        if (mClipData != null) {
7430            mClipData.prepareToLeaveProcess();
7431        }
7432
7433        if (mData != null && StrictMode.vmFileUriExposureEnabled()) {
7434            // There are several ACTION_MEDIA_* broadcasts that send file://
7435            // Uris, so only check common actions.
7436            if (ACTION_VIEW.equals(mAction) ||
7437                    ACTION_EDIT.equals(mAction) ||
7438                    ACTION_ATTACH_DATA.equals(mAction)) {
7439                mData.checkFileUriExposed("Intent.getData()");
7440            }
7441        }
7442    }
7443
7444    /**
7445     * @hide
7446     */
7447    public void prepareToEnterProcess() {
7448        if (mContentUserHint != UserHandle.USER_CURRENT) {
7449            fixUris(mContentUserHint);
7450            mContentUserHint = UserHandle.USER_CURRENT;
7451        }
7452    }
7453
7454    /**
7455     * @hide
7456     */
7457     public void fixUris(int contentUserHint) {
7458        Uri data = getData();
7459        if (data != null) {
7460            mData = maybeAddUserId(data, contentUserHint);
7461        }
7462        if (mClipData != null) {
7463            mClipData.fixUris(contentUserHint);
7464        }
7465        String action = getAction();
7466        if (ACTION_SEND.equals(action)) {
7467            final Uri stream = getParcelableExtra(EXTRA_STREAM);
7468            if (stream != null) {
7469                putExtra(EXTRA_STREAM, maybeAddUserId(stream, contentUserHint));
7470            }
7471        } else if (ACTION_SEND_MULTIPLE.equals(action)) {
7472            final ArrayList<Uri> streams = getParcelableArrayListExtra(EXTRA_STREAM);
7473            if (streams != null) {
7474                ArrayList<Uri> newStreams = new ArrayList<Uri>();
7475                for (int i = 0; i < streams.size(); i++) {
7476                    newStreams.add(maybeAddUserId(streams.get(i), contentUserHint));
7477                }
7478                putParcelableArrayListExtra(EXTRA_STREAM, newStreams);
7479            }
7480        } else if (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)
7481                || MediaStore.ACTION_IMAGE_CAPTURE_SECURE.equals(action)
7482                || MediaStore.ACTION_VIDEO_CAPTURE.equals(action)) {
7483            final Uri output = getParcelableExtra(MediaStore.EXTRA_OUTPUT);
7484            if (output != null) {
7485                putExtra(MediaStore.EXTRA_OUTPUT, maybeAddUserId(output, contentUserHint));
7486            }
7487        }
7488     }
7489
7490    /**
7491     * Migrate any {@link #EXTRA_STREAM} in {@link #ACTION_SEND} and
7492     * {@link #ACTION_SEND_MULTIPLE} to {@link ClipData}. Also inspects nested
7493     * intents in {@link #ACTION_CHOOSER}.
7494     *
7495     * @return Whether any contents were migrated.
7496     * @hide
7497     */
7498    public boolean migrateExtraStreamToClipData() {
7499        // Refuse to touch if extras already parcelled
7500        if (mExtras != null && mExtras.isParcelled()) return false;
7501
7502        // Bail when someone already gave us ClipData
7503        if (getClipData() != null) return false;
7504
7505        final String action = getAction();
7506        if (ACTION_CHOOSER.equals(action)) {
7507            // Inspect contained intents to see if we need to migrate extras. We
7508            // don't promote ClipData to the parent, since ChooserActivity will
7509            // already start the picked item as the caller, and we can't combine
7510            // the flags in a safe way.
7511
7512            boolean migrated = false;
7513            try {
7514                final Intent intent = getParcelableExtra(EXTRA_INTENT);
7515                if (intent != null) {
7516                    migrated |= intent.migrateExtraStreamToClipData();
7517                }
7518            } catch (ClassCastException e) {
7519            }
7520            try {
7521                final Parcelable[] intents = getParcelableArrayExtra(EXTRA_INITIAL_INTENTS);
7522                if (intents != null) {
7523                    for (int i = 0; i < intents.length; i++) {
7524                        final Intent intent = (Intent) intents[i];
7525                        if (intent != null) {
7526                            migrated |= intent.migrateExtraStreamToClipData();
7527                        }
7528                    }
7529                }
7530            } catch (ClassCastException e) {
7531            }
7532            return migrated;
7533
7534        } else if (ACTION_SEND.equals(action)) {
7535            try {
7536                final Uri stream = getParcelableExtra(EXTRA_STREAM);
7537                final CharSequence text = getCharSequenceExtra(EXTRA_TEXT);
7538                final String htmlText = getStringExtra(EXTRA_HTML_TEXT);
7539                if (stream != null || text != null || htmlText != null) {
7540                    final ClipData clipData = new ClipData(
7541                            null, new String[] { getType() },
7542                            new ClipData.Item(text, htmlText, null, stream));
7543                    setClipData(clipData);
7544                    addFlags(FLAG_GRANT_READ_URI_PERMISSION);
7545                    return true;
7546                }
7547            } catch (ClassCastException e) {
7548            }
7549
7550        } else if (ACTION_SEND_MULTIPLE.equals(action)) {
7551            try {
7552                final ArrayList<Uri> streams = getParcelableArrayListExtra(EXTRA_STREAM);
7553                final ArrayList<CharSequence> texts = getCharSequenceArrayListExtra(EXTRA_TEXT);
7554                final ArrayList<String> htmlTexts = getStringArrayListExtra(EXTRA_HTML_TEXT);
7555                int num = -1;
7556                if (streams != null) {
7557                    num = streams.size();
7558                }
7559                if (texts != null) {
7560                    if (num >= 0 && num != texts.size()) {
7561                        // Wha...!  F- you.
7562                        return false;
7563                    }
7564                    num = texts.size();
7565                }
7566                if (htmlTexts != null) {
7567                    if (num >= 0 && num != htmlTexts.size()) {
7568                        // Wha...!  F- you.
7569                        return false;
7570                    }
7571                    num = htmlTexts.size();
7572                }
7573                if (num > 0) {
7574                    final ClipData clipData = new ClipData(
7575                            null, new String[] { getType() },
7576                            makeClipItem(streams, texts, htmlTexts, 0));
7577
7578                    for (int i = 1; i < num; i++) {
7579                        clipData.addItem(makeClipItem(streams, texts, htmlTexts, i));
7580                    }
7581
7582                    setClipData(clipData);
7583                    addFlags(FLAG_GRANT_READ_URI_PERMISSION);
7584                    return true;
7585                }
7586            } catch (ClassCastException e) {
7587            }
7588        } else if (MediaStore.ACTION_IMAGE_CAPTURE.equals(action)
7589                || MediaStore.ACTION_IMAGE_CAPTURE_SECURE.equals(action)
7590                || MediaStore.ACTION_VIDEO_CAPTURE.equals(action)) {
7591            final Uri output;
7592            try {
7593                output = getParcelableExtra(MediaStore.EXTRA_OUTPUT);
7594            } catch (ClassCastException e) {
7595                return false;
7596            }
7597            if (output != null) {
7598                setClipData(ClipData.newRawUri("", output));
7599                addFlags(FLAG_GRANT_WRITE_URI_PERMISSION|FLAG_GRANT_READ_URI_PERMISSION);
7600                return true;
7601            }
7602        }
7603
7604        return false;
7605    }
7606
7607    private static ClipData.Item makeClipItem(ArrayList<Uri> streams, ArrayList<CharSequence> texts,
7608            ArrayList<String> htmlTexts, int which) {
7609        Uri uri = streams != null ? streams.get(which) : null;
7610        CharSequence text = texts != null ? texts.get(which) : null;
7611        String htmlText = htmlTexts != null ? htmlTexts.get(which) : null;
7612        return new ClipData.Item(text, htmlText, null, uri);
7613    }
7614
7615    /** @hide */
7616    public boolean isDocument() {
7617        return (mFlags & FLAG_ACTIVITY_NEW_DOCUMENT) == FLAG_ACTIVITY_NEW_DOCUMENT;
7618    }
7619}
7620