Intent.java revision 36d337adffa6d1c4c953e83730ad58747f554877
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 org.xmlpull.v1.XmlPullParser;
20import org.xmlpull.v1.XmlPullParserException;
21
22import android.annotation.SdkConstant;
23import android.annotation.SdkConstant.SdkConstantType;
24import android.content.pm.ActivityInfo;
25import android.content.pm.PackageManager;
26import android.content.pm.ResolveInfo;
27import android.content.res.Resources;
28import android.content.res.TypedArray;
29import android.graphics.Rect;
30import android.net.Uri;
31import android.os.Bundle;
32import android.os.IBinder;
33import android.os.Parcel;
34import android.os.Parcelable;
35import android.util.AttributeSet;
36import android.util.Log;
37
38import com.android.internal.util.XmlUtils;
39
40import java.io.IOException;
41import java.io.Serializable;
42import java.net.URISyntaxException;
43import java.util.ArrayList;
44import java.util.HashSet;
45import java.util.Iterator;
46import java.util.Locale;
47import java.util.Set;
48
49/**
50 * An intent is an abstract description of an operation to be performed.  It
51 * can be used with {@link Context#startActivity(Intent) startActivity} to
52 * launch an {@link android.app.Activity},
53 * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
54 * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
55 * and {@link android.content.Context#startService} or
56 * {@link android.content.Context#bindService} to communicate with a
57 * background {@link android.app.Service}.
58 *
59 * <p>An Intent provides a facility for performing late runtime binding between the code in
60 * different applications. Its most significant use is in the launching of activities, where it
61 * can be thought of as the glue between activities. It is basically a passive data structure
62 * holding an abstract description of an action to be performed.</p>
63 *
64 * <div class="special reference">
65 * <h3>Developer Guides</h3>
66 * <p>For information about how to create and resolve intents, read the
67 * <a href="{@docRoot}guide/topics/intents/intents-filters.html">Intents and Intent Filters</a>
68 * developer guide.</p>
69 * </div>
70 *
71 * <a name="IntentStructure"></a>
72 * <h3>Intent Structure</h3>
73 * <p>The primary pieces of information in an intent are:</p>
74 *
75 * <ul>
76 *   <li> <p><b>action</b> -- The general action to be performed, such as
77 *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
78 *     etc.</p>
79 *   </li>
80 *   <li> <p><b>data</b> -- The data to operate on, such as a person record
81 *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
82 *   </li>
83 * </ul>
84 *
85 *
86 * <p>Some examples of action/data pairs are:</p>
87 *
88 * <ul>
89 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
90 *     information about the person whose identifier is "1".</p>
91 *   </li>
92 *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
93 *     the phone dialer with the person filled in.</p>
94 *   </li>
95 *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
96 *     the phone dialer with the given number filled in.  Note how the
97 *     VIEW action does what what is considered the most reasonable thing for
98 *     a particular URI.</p>
99 *   </li>
100 *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
101 *     the phone dialer with the given number filled in.</p>
102 *   </li>
103 *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
104 *     information about the person whose identifier is "1".</p>
105 *   </li>
106 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
107 *     a list of people, which the user can browse through.  This example is a
108 *     typical top-level entry into the Contacts application, showing you the
109 *     list of people. Selecting a particular person to view would result in a
110 *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
111 *     being used to start an activity to display that person.</p>
112 *   </li>
113 * </ul>
114 *
115 * <p>In addition to these primary attributes, there are a number of secondary
116 * attributes that you can also include with an intent:</p>
117 *
118 * <ul>
119 *     <li> <p><b>category</b> -- Gives additional information about the action
120 *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
121 *         appear in the Launcher as a top-level application, while
122 *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
123 *         of alternative actions the user can perform on a piece of data.</p>
124 *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
125 *         intent data.  Normally the type is inferred from the data itself.
126 *         By setting this attribute, you disable that evaluation and force
127 *         an explicit type.</p>
128 *     <li> <p><b>component</b> -- Specifies an explicit name of a component
129 *         class to use for the intent.  Normally this is determined by looking
130 *         at the other information in the intent (the action, data/type, and
131 *         categories) and matching that with a component that can handle it.
132 *         If this attribute is set then none of the evaluation is performed,
133 *         and this component is used exactly as is.  By specifying this attribute,
134 *         all of the other Intent attributes become optional.</p>
135 *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
136 *         This can be used to provide extended information to the component.
137 *         For example, if we have a action to send an e-mail message, we could
138 *         also include extra pieces of data here to supply a subject, body,
139 *         etc.</p>
140 * </ul>
141 *
142 * <p>Here are some examples of other operations you can specify as intents
143 * using these additional parameters:</p>
144 *
145 * <ul>
146 *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
147 *     Launch the home screen.</p>
148 *   </li>
149 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
150 *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
151 *     vnd.android.cursor.item/phone}</i></b>
152 *     -- Display the list of people's phone numbers, allowing the user to
153 *     browse through them and pick one and return it to the parent activity.</p>
154 *   </li>
155 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
156 *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
157 *     -- Display all pickers for data that can be opened with
158 *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
159 *     allowing the user to pick one of them and then some data inside of it
160 *     and returning the resulting URI to the caller.  This can be used,
161 *     for example, in an e-mail application to allow the user to pick some
162 *     data to include as an attachment.</p>
163 *   </li>
164 * </ul>
165 *
166 * <p>There are a variety of standard Intent action and category constants
167 * defined in the Intent class, but applications can also define their own.
168 * These strings use java style scoping, to ensure they are unique -- for
169 * example, the standard {@link #ACTION_VIEW} is called
170 * "android.intent.action.VIEW".</p>
171 *
172 * <p>Put together, the set of actions, data types, categories, and extra data
173 * defines a language for the system allowing for the expression of phrases
174 * such as "call john smith's cell".  As applications are added to the system,
175 * they can extend this language by adding new actions, types, and categories, or
176 * they can modify the behavior of existing phrases by supplying their own
177 * activities that handle them.</p>
178 *
179 * <a name="IntentResolution"></a>
180 * <h3>Intent Resolution</h3>
181 *
182 * <p>There are two primary forms of intents you will use.
183 *
184 * <ul>
185 *     <li> <p><b>Explicit Intents</b> have specified a component (via
186 *     {@link #setComponent} or {@link #setClass}), which provides the exact
187 *     class to be run.  Often these will not include any other information,
188 *     simply being a way for an application to launch various internal
189 *     activities it has as the user interacts with the application.
190 *
191 *     <li> <p><b>Implicit Intents</b> have not specified a component;
192 *     instead, they must include enough information for the system to
193 *     determine which of the available components is best to run for that
194 *     intent.
195 * </ul>
196 *
197 * <p>When using implicit intents, given such an arbitrary intent we need to
198 * know what to do with it. This is handled by the process of <em>Intent
199 * resolution</em>, which maps an Intent to an {@link android.app.Activity},
200 * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
201 * more activities/receivers) that can handle it.</p>
202 *
203 * <p>The intent resolution mechanism basically revolves around matching an
204 * Intent against all of the &lt;intent-filter&gt; descriptions in the
205 * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
206 * objects explicitly registered with {@link Context#registerReceiver}.)  More
207 * details on this can be found in the documentation on the {@link
208 * IntentFilter} class.</p>
209 *
210 * <p>There are three pieces of information in the Intent that are used for
211 * resolution: the action, type, and category.  Using this information, a query
212 * is done on the {@link PackageManager} for a component that can handle the
213 * intent. The appropriate component is determined based on the intent
214 * information supplied in the <code>AndroidManifest.xml</code> file as
215 * follows:</p>
216 *
217 * <ul>
218 *     <li> <p>The <b>action</b>, if given, must be listed by the component as
219 *         one it handles.</p>
220 *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
221 *         already supplied in the Intent.  Like the action, if a type is
222 *         included in the intent (either explicitly or implicitly in its
223 *         data), then this must be listed by the component as one it handles.</p>
224 *     <li> For data that is not a <code>content:</code> URI and where no explicit
225 *         type is included in the Intent, instead the <b>scheme</b> of the
226 *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
227 *         considered. Again like the action, if we are matching a scheme it
228 *         must be listed by the component as one it can handle.
229 *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
230 *         by the activity as categories it handles.  That is, if you include
231 *         the categories {@link #CATEGORY_LAUNCHER} and
232 *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
233 *         with an intent that lists <em>both</em> of those categories.
234 *         Activities will very often need to support the
235 *         {@link #CATEGORY_DEFAULT} so that they can be found by
236 *         {@link Context#startActivity Context.startActivity()}.</p>
237 * </ul>
238 *
239 * <p>For example, consider the Note Pad sample application that
240 * allows user to browse through a list of notes data and view details about
241 * individual items.  Text in italics indicate places were you would replace a
242 * name with one specific to your own package.</p>
243 *
244 * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
245 *       package="<i>com.android.notepad</i>"&gt;
246 *     &lt;application android:icon="@drawable/app_notes"
247 *             android:label="@string/app_name"&gt;
248 *
249 *         &lt;provider class=".NotePadProvider"
250 *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
251 *
252 *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
253 *             &lt;intent-filter&gt;
254 *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
255 *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
256 *             &lt;/intent-filter&gt;
257 *             &lt;intent-filter&gt;
258 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
259 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
260 *                 &lt;action android:name="android.intent.action.PICK" /&gt;
261 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
262 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
263 *             &lt;/intent-filter&gt;
264 *             &lt;intent-filter&gt;
265 *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
266 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
267 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
268 *             &lt;/intent-filter&gt;
269 *         &lt;/activity&gt;
270 *
271 *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
272 *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
273 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
274 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
275 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
276 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
277 *             &lt;/intent-filter&gt;
278 *
279 *             &lt;intent-filter&gt;
280 *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
281 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
282 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
283 *             &lt;/intent-filter&gt;
284 *
285 *         &lt;/activity&gt;
286 *
287 *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
288 *                 android:theme="@android:style/Theme.Dialog"&gt;
289 *             &lt;intent-filter android:label="@string/resolve_title"&gt;
290 *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
291 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
292 *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
293 *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
294 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
295 *             &lt;/intent-filter&gt;
296 *         &lt;/activity&gt;
297 *
298 *     &lt;/application&gt;
299 * &lt;/manifest&gt;</pre>
300 *
301 * <p>The first activity,
302 * <code>com.android.notepad.NotesList</code>, serves as our main
303 * entry into the app.  It can do three things as described by its three intent
304 * templates:
305 * <ol>
306 * <li><pre>
307 * &lt;intent-filter&gt;
308 *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
309 *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
310 * &lt;/intent-filter&gt;</pre>
311 * <p>This provides a top-level entry into the NotePad application: the standard
312 * MAIN action is a main entry point (not requiring any other information in
313 * the Intent), and the LAUNCHER category says that this entry point should be
314 * listed in the application launcher.</p>
315 * <li><pre>
316 * &lt;intent-filter&gt;
317 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
318 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
319 *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
320 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
321 *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
322 * &lt;/intent-filter&gt;</pre>
323 * <p>This declares the things that the activity can do on a directory of
324 * notes.  The type being supported is given with the &lt;type&gt; tag, where
325 * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
326 * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
327 * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
328 * The activity allows the user to view or edit the directory of data (via
329 * the VIEW and EDIT actions), or to pick a particular note and return it
330 * to the caller (via the PICK action).  Note also the DEFAULT category
331 * supplied here: this is <em>required</em> for the
332 * {@link Context#startActivity Context.startActivity} method to resolve your
333 * activity when its component name is not explicitly specified.</p>
334 * <li><pre>
335 * &lt;intent-filter&gt;
336 *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
337 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
338 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
339 * &lt;/intent-filter&gt;</pre>
340 * <p>This filter describes the ability return to the caller a note selected by
341 * the user without needing to know where it came from.  The data type
342 * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
343 * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
344 * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
345 * The GET_CONTENT action is similar to the PICK action, where the activity
346 * will return to its caller a piece of data selected by the user.  Here,
347 * however, the caller specifies the type of data they desire instead of
348 * the type of data the user will be picking from.</p>
349 * </ol>
350 *
351 * <p>Given these capabilities, the following intents will resolve to the
352 * NotesList activity:</p>
353 *
354 * <ul>
355 *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
356 *         activities that can be used as top-level entry points into an
357 *         application.</p>
358 *     <li> <p><b>{ action=android.app.action.MAIN,
359 *         category=android.app.category.LAUNCHER }</b> is the actual intent
360 *         used by the Launcher to populate its top-level list.</p>
361 *     <li> <p><b>{ action=android.intent.action.VIEW
362 *          data=content://com.google.provider.NotePad/notes }</b>
363 *         displays a list of all the notes under
364 *         "content://com.google.provider.NotePad/notes", which
365 *         the user can browse through and see the details on.</p>
366 *     <li> <p><b>{ action=android.app.action.PICK
367 *          data=content://com.google.provider.NotePad/notes }</b>
368 *         provides a list of the notes under
369 *         "content://com.google.provider.NotePad/notes", from which
370 *         the user can pick a note whose data URL is returned back to the caller.</p>
371 *     <li> <p><b>{ action=android.app.action.GET_CONTENT
372 *          type=vnd.android.cursor.item/vnd.google.note }</b>
373 *         is similar to the pick action, but allows the caller to specify the
374 *         kind of data they want back so that the system can find the appropriate
375 *         activity to pick something of that data type.</p>
376 * </ul>
377 *
378 * <p>The second activity,
379 * <code>com.android.notepad.NoteEditor</code>, shows the user a single
380 * note entry and allows them to edit it.  It can do two things as described
381 * by its two intent templates:
382 * <ol>
383 * <li><pre>
384 * &lt;intent-filter android:label="@string/resolve_edit"&gt;
385 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
386 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
387 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
388 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
389 * &lt;/intent-filter&gt;</pre>
390 * <p>The first, primary, purpose of this activity is to let the user interact
391 * with a single note, as decribed by the MIME type
392 * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
393 * either VIEW a note or allow the user to EDIT it.  Again we support the
394 * DEFAULT category to allow the activity to be launched without explicitly
395 * specifying its component.</p>
396 * <li><pre>
397 * &lt;intent-filter&gt;
398 *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
399 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
400 *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
401 * &lt;/intent-filter&gt;</pre>
402 * <p>The secondary use of this activity is to insert a new note entry into
403 * an existing directory of notes.  This is used when the user creates a new
404 * note: the INSERT action is executed on the directory of notes, causing
405 * this activity to run and have the user create the new note data which
406 * it then adds to the content provider.</p>
407 * </ol>
408 *
409 * <p>Given these capabilities, the following intents will resolve to the
410 * NoteEditor activity:</p>
411 *
412 * <ul>
413 *     <li> <p><b>{ action=android.intent.action.VIEW
414 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
415 *         shows the user the content of note <var>{ID}</var>.</p>
416 *     <li> <p><b>{ action=android.app.action.EDIT
417 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
418 *         allows the user to edit the content of note <var>{ID}</var>.</p>
419 *     <li> <p><b>{ action=android.app.action.INSERT
420 *          data=content://com.google.provider.NotePad/notes }</b>
421 *         creates a new, empty note in the notes list at
422 *         "content://com.google.provider.NotePad/notes"
423 *         and allows the user to edit it.  If they keep their changes, the URI
424 *         of the newly created note is returned to the caller.</p>
425 * </ul>
426 *
427 * <p>The last activity,
428 * <code>com.android.notepad.TitleEditor</code>, allows the user to
429 * edit the title of a note.  This could be implemented as a class that the
430 * application directly invokes (by explicitly setting its component in
431 * the Intent), but here we show a way you can publish alternative
432 * operations on existing data:</p>
433 *
434 * <pre>
435 * &lt;intent-filter android:label="@string/resolve_title"&gt;
436 *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
437 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
438 *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
439 *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
440 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
441 * &lt;/intent-filter&gt;</pre>
442 *
443 * <p>In the single intent template here, we
444 * have created our own private action called
445 * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
446 * edit the title of a note.  It must be invoked on a specific note
447 * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
448 * view and edit actions, but here displays and edits the title contained
449 * in the note data.
450 *
451 * <p>In addition to supporting the default category as usual, our title editor
452 * also supports two other standard categories: ALTERNATIVE and
453 * SELECTED_ALTERNATIVE.  Implementing
454 * these categories allows others to find the special action it provides
455 * without directly knowing about it, through the
456 * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
457 * more often to build dynamic menu items with
458 * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
459 * template here was also supply an explicit name for the template
460 * (via <code>android:label="@string/resolve_title"</code>) to better control
461 * what the user sees when presented with this activity as an alternative
462 * action to the data they are viewing.
463 *
464 * <p>Given these capabilities, the following intent will resolve to the
465 * TitleEditor activity:</p>
466 *
467 * <ul>
468 *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
469 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
470 *         displays and allows the user to edit the title associated
471 *         with note <var>{ID}</var>.</p>
472 * </ul>
473 *
474 * <h3>Standard Activity Actions</h3>
475 *
476 * <p>These are the current standard actions that Intent defines for launching
477 * activities (usually through {@link Context#startActivity}.  The most
478 * important, and by far most frequently used, are {@link #ACTION_MAIN} and
479 * {@link #ACTION_EDIT}.
480 *
481 * <ul>
482 *     <li> {@link #ACTION_MAIN}
483 *     <li> {@link #ACTION_VIEW}
484 *     <li> {@link #ACTION_ATTACH_DATA}
485 *     <li> {@link #ACTION_EDIT}
486 *     <li> {@link #ACTION_PICK}
487 *     <li> {@link #ACTION_CHOOSER}
488 *     <li> {@link #ACTION_GET_CONTENT}
489 *     <li> {@link #ACTION_DIAL}
490 *     <li> {@link #ACTION_CALL}
491 *     <li> {@link #ACTION_SEND}
492 *     <li> {@link #ACTION_SENDTO}
493 *     <li> {@link #ACTION_ANSWER}
494 *     <li> {@link #ACTION_INSERT}
495 *     <li> {@link #ACTION_DELETE}
496 *     <li> {@link #ACTION_RUN}
497 *     <li> {@link #ACTION_SYNC}
498 *     <li> {@link #ACTION_PICK_ACTIVITY}
499 *     <li> {@link #ACTION_SEARCH}
500 *     <li> {@link #ACTION_WEB_SEARCH}
501 *     <li> {@link #ACTION_FACTORY_TEST}
502 * </ul>
503 *
504 * <h3>Standard Broadcast Actions</h3>
505 *
506 * <p>These are the current standard actions that Intent defines for receiving
507 * broadcasts (usually through {@link Context#registerReceiver} or a
508 * &lt;receiver&gt; tag in a manifest).
509 *
510 * <ul>
511 *     <li> {@link #ACTION_TIME_TICK}
512 *     <li> {@link #ACTION_TIME_CHANGED}
513 *     <li> {@link #ACTION_TIMEZONE_CHANGED}
514 *     <li> {@link #ACTION_BOOT_COMPLETED}
515 *     <li> {@link #ACTION_PACKAGE_ADDED}
516 *     <li> {@link #ACTION_PACKAGE_CHANGED}
517 *     <li> {@link #ACTION_PACKAGE_REMOVED}
518 *     <li> {@link #ACTION_PACKAGE_RESTARTED}
519 *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
520 *     <li> {@link #ACTION_UID_REMOVED}
521 *     <li> {@link #ACTION_BATTERY_CHANGED}
522 *     <li> {@link #ACTION_POWER_CONNECTED}
523 *     <li> {@link #ACTION_POWER_DISCONNECTED}
524 *     <li> {@link #ACTION_SHUTDOWN}
525 * </ul>
526 *
527 * <h3>Standard Categories</h3>
528 *
529 * <p>These are the current standard categories that can be used to further
530 * clarify an Intent via {@link #addCategory}.
531 *
532 * <ul>
533 *     <li> {@link #CATEGORY_DEFAULT}
534 *     <li> {@link #CATEGORY_BROWSABLE}
535 *     <li> {@link #CATEGORY_TAB}
536 *     <li> {@link #CATEGORY_ALTERNATIVE}
537 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
538 *     <li> {@link #CATEGORY_LAUNCHER}
539 *     <li> {@link #CATEGORY_INFO}
540 *     <li> {@link #CATEGORY_HOME}
541 *     <li> {@link #CATEGORY_PREFERENCE}
542 *     <li> {@link #CATEGORY_TEST}
543 *     <li> {@link #CATEGORY_CAR_DOCK}
544 *     <li> {@link #CATEGORY_DESK_DOCK}
545 *     <li> {@link #CATEGORY_LE_DESK_DOCK}
546 *     <li> {@link #CATEGORY_HE_DESK_DOCK}
547 *     <li> {@link #CATEGORY_CAR_MODE}
548 *     <li> {@link #CATEGORY_APP_MARKET}
549 * </ul>
550 *
551 * <h3>Standard Extra Data</h3>
552 *
553 * <p>These are the current standard fields that can be used as extra data via
554 * {@link #putExtra}.
555 *
556 * <ul>
557 *     <li> {@link #EXTRA_ALARM_COUNT}
558 *     <li> {@link #EXTRA_BCC}
559 *     <li> {@link #EXTRA_CC}
560 *     <li> {@link #EXTRA_CHANGED_COMPONENT_NAME}
561 *     <li> {@link #EXTRA_DATA_REMOVED}
562 *     <li> {@link #EXTRA_DOCK_STATE}
563 *     <li> {@link #EXTRA_DOCK_STATE_HE_DESK}
564 *     <li> {@link #EXTRA_DOCK_STATE_LE_DESK}
565 *     <li> {@link #EXTRA_DOCK_STATE_CAR}
566 *     <li> {@link #EXTRA_DOCK_STATE_DESK}
567 *     <li> {@link #EXTRA_DOCK_STATE_UNDOCKED}
568 *     <li> {@link #EXTRA_DONT_KILL_APP}
569 *     <li> {@link #EXTRA_EMAIL}
570 *     <li> {@link #EXTRA_INITIAL_INTENTS}
571 *     <li> {@link #EXTRA_INTENT}
572 *     <li> {@link #EXTRA_KEY_EVENT}
573 *     <li> {@link #EXTRA_ORIGINATING_URI}
574 *     <li> {@link #EXTRA_PHONE_NUMBER}
575 *     <li> {@link #EXTRA_REFERRER}
576 *     <li> {@link #EXTRA_REMOTE_INTENT_TOKEN}
577 *     <li> {@link #EXTRA_REPLACING}
578 *     <li> {@link #EXTRA_SHORTCUT_ICON}
579 *     <li> {@link #EXTRA_SHORTCUT_ICON_RESOURCE}
580 *     <li> {@link #EXTRA_SHORTCUT_INTENT}
581 *     <li> {@link #EXTRA_STREAM}
582 *     <li> {@link #EXTRA_SHORTCUT_NAME}
583 *     <li> {@link #EXTRA_SUBJECT}
584 *     <li> {@link #EXTRA_TEMPLATE}
585 *     <li> {@link #EXTRA_TEXT}
586 *     <li> {@link #EXTRA_TITLE}
587 *     <li> {@link #EXTRA_UID}
588 * </ul>
589 *
590 * <h3>Flags</h3>
591 *
592 * <p>These are the possible flags that can be used in the Intent via
593 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
594 * of all possible flags.
595 */
596public class Intent implements Parcelable, Cloneable {
597    // ---------------------------------------------------------------------
598    // ---------------------------------------------------------------------
599    // Standard intent activity actions (see action variable).
600
601    /**
602     *  Activity Action: Start as a main entry point, does not expect to
603     *  receive data.
604     *  <p>Input: nothing
605     *  <p>Output: nothing
606     */
607    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
608    public static final String ACTION_MAIN = "android.intent.action.MAIN";
609
610    /**
611     * Activity Action: Display the data to the user.  This is the most common
612     * action performed on data -- it is the generic action you can use on
613     * a piece of data to get the most reasonable thing to occur.  For example,
614     * when used on a contacts entry it will view the entry; when used on a
615     * mailto: URI it will bring up a compose window filled with the information
616     * supplied by the URI; when used with a tel: URI it will invoke the
617     * dialer.
618     * <p>Input: {@link #getData} is URI from which to retrieve data.
619     * <p>Output: nothing.
620     */
621    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
622    public static final String ACTION_VIEW = "android.intent.action.VIEW";
623
624    /**
625     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
626     * performed on a piece of data.
627     */
628    public static final String ACTION_DEFAULT = ACTION_VIEW;
629
630    /**
631     * Used to indicate that some piece of data should be attached to some other
632     * place.  For example, image data could be attached to a contact.  It is up
633     * to the recipient to decide where the data should be attached; the intent
634     * does not specify the ultimate destination.
635     * <p>Input: {@link #getData} is URI of data to be attached.
636     * <p>Output: nothing.
637     */
638    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
639    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
640
641    /**
642     * Activity Action: Provide explicit editable access to the given data.
643     * <p>Input: {@link #getData} is URI of data to be edited.
644     * <p>Output: nothing.
645     */
646    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
647    public static final String ACTION_EDIT = "android.intent.action.EDIT";
648
649    /**
650     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
651     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
652     * The extras can contain type specific data to pass through to the editing/creating
653     * activity.
654     * <p>Output: The URI of the item that was picked.  This must be a content:
655     * URI so that any receiver can access it.
656     */
657    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
658    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
659
660    /**
661     * Activity Action: Pick an item from the data, returning what was selected.
662     * <p>Input: {@link #getData} is URI containing a directory of data
663     * (vnd.android.cursor.dir/*) from which to pick an item.
664     * <p>Output: The URI of the item that was picked.
665     */
666    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
667    public static final String ACTION_PICK = "android.intent.action.PICK";
668
669    /**
670     * Activity Action: Creates a shortcut.
671     * <p>Input: Nothing.</p>
672     * <p>Output: An Intent representing the shortcut. The intent must contain three
673     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
674     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
675     * (value: ShortcutIconResource).</p>
676     *
677     * @see #EXTRA_SHORTCUT_INTENT
678     * @see #EXTRA_SHORTCUT_NAME
679     * @see #EXTRA_SHORTCUT_ICON
680     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
681     * @see android.content.Intent.ShortcutIconResource
682     */
683    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
684    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
685
686    /**
687     * The name of the extra used to define the Intent of a shortcut.
688     *
689     * @see #ACTION_CREATE_SHORTCUT
690     */
691    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
692    /**
693     * The name of the extra used to define the name of a shortcut.
694     *
695     * @see #ACTION_CREATE_SHORTCUT
696     */
697    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
698    /**
699     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
700     *
701     * @see #ACTION_CREATE_SHORTCUT
702     */
703    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
704    /**
705     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
706     *
707     * @see #ACTION_CREATE_SHORTCUT
708     * @see android.content.Intent.ShortcutIconResource
709     */
710    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
711            "android.intent.extra.shortcut.ICON_RESOURCE";
712
713    /**
714     * Represents a shortcut/live folder icon resource.
715     *
716     * @see Intent#ACTION_CREATE_SHORTCUT
717     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
718     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
719     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
720     */
721    public static class ShortcutIconResource implements Parcelable {
722        /**
723         * The package name of the application containing the icon.
724         */
725        public String packageName;
726
727        /**
728         * The resource name of the icon, including package, name and type.
729         */
730        public String resourceName;
731
732        /**
733         * Creates a new ShortcutIconResource for the specified context and resource
734         * identifier.
735         *
736         * @param context The context of the application.
737         * @param resourceId The resource idenfitier for the icon.
738         * @return A new ShortcutIconResource with the specified's context package name
739         *         and icon resource idenfitier.
740         */
741        public static ShortcutIconResource fromContext(Context context, int resourceId) {
742            ShortcutIconResource icon = new ShortcutIconResource();
743            icon.packageName = context.getPackageName();
744            icon.resourceName = context.getResources().getResourceName(resourceId);
745            return icon;
746        }
747
748        /**
749         * Used to read a ShortcutIconResource from a Parcel.
750         */
751        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
752            new Parcelable.Creator<ShortcutIconResource>() {
753
754                public ShortcutIconResource createFromParcel(Parcel source) {
755                    ShortcutIconResource icon = new ShortcutIconResource();
756                    icon.packageName = source.readString();
757                    icon.resourceName = source.readString();
758                    return icon;
759                }
760
761                public ShortcutIconResource[] newArray(int size) {
762                    return new ShortcutIconResource[size];
763                }
764            };
765
766        /**
767         * No special parcel contents.
768         */
769        public int describeContents() {
770            return 0;
771        }
772
773        public void writeToParcel(Parcel dest, int flags) {
774            dest.writeString(packageName);
775            dest.writeString(resourceName);
776        }
777
778        @Override
779        public String toString() {
780            return resourceName;
781        }
782    }
783
784    /**
785     * Activity Action: Display an activity chooser, allowing the user to pick
786     * what they want to before proceeding.  This can be used as an alternative
787     * to the standard activity picker that is displayed by the system when
788     * you try to start an activity with multiple possible matches, with these
789     * differences in behavior:
790     * <ul>
791     * <li>You can specify the title that will appear in the activity chooser.
792     * <li>The user does not have the option to make one of the matching
793     * activities a preferred activity, and all possible activities will
794     * always be shown even if one of them is currently marked as the
795     * preferred activity.
796     * </ul>
797     * <p>
798     * This action should be used when the user will naturally expect to
799     * select an activity in order to proceed.  An example if when not to use
800     * it is when the user clicks on a "mailto:" link.  They would naturally
801     * expect to go directly to their mail app, so startActivity() should be
802     * called directly: it will
803     * either launch the current preferred app, or put up a dialog allowing the
804     * user to pick an app to use and optionally marking that as preferred.
805     * <p>
806     * In contrast, if the user is selecting a menu item to send a picture
807     * they are viewing to someone else, there are many different things they
808     * may want to do at this point: send it through e-mail, upload it to a
809     * web service, etc.  In this case the CHOOSER action should be used, to
810     * always present to the user a list of the things they can do, with a
811     * nice title given by the caller such as "Send this photo with:".
812     * <p>
813     * If you need to grant URI permissions through a chooser, you must specify
814     * the permissions to be granted on the ACTION_CHOOSER Intent
815     * <em>in addition</em> to the EXTRA_INTENT inside.  This means using
816     * {@link #setClipData} to specify the URIs to be granted as well as
817     * {@link #FLAG_GRANT_READ_URI_PERMISSION} and/or
818     * {@link #FLAG_GRANT_WRITE_URI_PERMISSION} as appropriate.
819     * <p>
820     * As a convenience, an Intent of this form can be created with the
821     * {@link #createChooser} function.
822     * <p>
823     * Input: No data should be specified.  get*Extra must have
824     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
825     * and can optionally have a {@link #EXTRA_TITLE} field containing the
826     * title text to display in the chooser.
827     * <p>
828     * Output: Depends on the protocol of {@link #EXTRA_INTENT}.
829     */
830    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
831    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
832
833    /**
834     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
835     *
836     * <p>Builds a new {@link #ACTION_CHOOSER} Intent that wraps the given
837     * target intent, also optionally supplying a title.  If the target
838     * intent has specified {@link #FLAG_GRANT_READ_URI_PERMISSION} or
839     * {@link #FLAG_GRANT_WRITE_URI_PERMISSION}, then these flags will also be
840     * set in the returned chooser intent, with its ClipData set appropriately:
841     * either a direct reflection of {@link #getClipData()} if that is non-null,
842     * or a new ClipData build from {@link #getData()}.
843     *
844     * @param target The Intent that the user will be selecting an activity
845     * to perform.
846     * @param title Optional title that will be displayed in the chooser.
847     * @return Return a new Intent object that you can hand to
848     * {@link Context#startActivity(Intent) Context.startActivity()} and
849     * related methods.
850     */
851    public static Intent createChooser(Intent target, CharSequence title) {
852        Intent intent = new Intent(ACTION_CHOOSER);
853        intent.putExtra(EXTRA_INTENT, target);
854        if (title != null) {
855            intent.putExtra(EXTRA_TITLE, title);
856        }
857
858        // Migrate any clip data and flags from target.
859        int permFlags = target.getFlags()
860                & (FLAG_GRANT_READ_URI_PERMISSION | FLAG_GRANT_WRITE_URI_PERMISSION);
861        if (permFlags != 0) {
862            ClipData targetClipData = target.getClipData();
863            if (targetClipData == null && target.getData() != null) {
864                ClipData.Item item = new ClipData.Item(target.getData());
865                String[] mimeTypes;
866                if (target.getType() != null) {
867                    mimeTypes = new String[] { target.getType() };
868                } else {
869                    mimeTypes = new String[] { };
870                }
871                targetClipData = new ClipData(null, mimeTypes, item);
872            }
873            if (targetClipData != null) {
874                intent.setClipData(targetClipData);
875                intent.addFlags(permFlags);
876            }
877        }
878
879        return intent;
880    }
881
882    /**
883     * Activity Action: Allow the user to select a particular kind of data and
884     * return it.  This is different than {@link #ACTION_PICK} in that here we
885     * just say what kind of data is desired, not a URI of existing data from
886     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
887     * create the data as it runs (for example taking a picture or recording a
888     * sound), let them browse over the web and download the desired data,
889     * etc.
890     * <p>
891     * There are two main ways to use this action: if you want a specific kind
892     * of data, such as a person contact, you set the MIME type to the kind of
893     * data you want and launch it with {@link Context#startActivity(Intent)}.
894     * The system will then launch the best application to select that kind
895     * of data for you.
896     * <p>
897     * You may also be interested in any of a set of types of content the user
898     * can pick.  For example, an e-mail application that wants to allow the
899     * user to add an attachment to an e-mail message can use this action to
900     * bring up a list of all of the types of content the user can attach.
901     * <p>
902     * In this case, you should wrap the GET_CONTENT intent with a chooser
903     * (through {@link #createChooser}), which will give the proper interface
904     * for the user to pick how to send your data and allow you to specify
905     * a prompt indicating what they are doing.  You will usually specify a
906     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
907     * broad range of content types the user can select from.
908     * <p>
909     * When using such a broad GET_CONTENT action, it is often desirable to
910     * only pick from data that can be represented as a stream.  This is
911     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
912     * <p>
913     * Callers can optionally specify {@link #EXTRA_LOCAL_ONLY} to request that
914     * the launched content chooser only returns results representing data that
915     * is locally available on the device.  For example, if this extra is set
916     * to true then an image picker should not show any pictures that are available
917     * from a remote server but not already on the local device (thus requiring
918     * they be downloaded when opened).
919     * <p>
920     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
921     * that no URI is supplied in the intent, as there are no constraints on
922     * where the returned data originally comes from.  You may also include the
923     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
924     * opened as a stream.  You may use {@link #EXTRA_LOCAL_ONLY} to limit content
925     * selection to local data.
926     * <p>
927     * Output: The URI of the item that was picked.  This must be a content:
928     * URI so that any receiver can access it.
929     */
930    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
931    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
932    /**
933     * Activity Action: Dial a number as specified by the data.  This shows a
934     * UI with the number being dialed, allowing the user to explicitly
935     * initiate the call.
936     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
937     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
938     * number.
939     * <p>Output: nothing.
940     */
941    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
942    public static final String ACTION_DIAL = "android.intent.action.DIAL";
943    /**
944     * Activity Action: Perform a call to someone specified by the data.
945     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
946     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
947     * number.
948     * <p>Output: nothing.
949     *
950     * <p>Note: there will be restrictions on which applications can initiate a
951     * call; most applications should use the {@link #ACTION_DIAL}.
952     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
953     * numbers.  Applications can <strong>dial</strong> emergency numbers using
954     * {@link #ACTION_DIAL}, however.
955     */
956    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
957    public static final String ACTION_CALL = "android.intent.action.CALL";
958    /**
959     * Activity Action: Perform a call to an emergency number specified by the
960     * data.
961     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
962     * tel: URI of an explicit phone number.
963     * <p>Output: nothing.
964     * @hide
965     */
966    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
967    /**
968     * Activity action: Perform a call to any number (emergency or not)
969     * specified by the data.
970     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
971     * tel: URI of an explicit phone number.
972     * <p>Output: nothing.
973     * @hide
974     */
975    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
976    /**
977     * Activity Action: Send a message to someone specified by the data.
978     * <p>Input: {@link #getData} is URI describing the target.
979     * <p>Output: nothing.
980     */
981    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
982    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
983    /**
984     * Activity Action: Deliver some data to someone else.  Who the data is
985     * being delivered to is not specified; it is up to the receiver of this
986     * action to ask the user where the data should be sent.
987     * <p>
988     * When launching a SEND intent, you should usually wrap it in a chooser
989     * (through {@link #createChooser}), which will give the proper interface
990     * for the user to pick how to send your data and allow you to specify
991     * a prompt indicating what they are doing.
992     * <p>
993     * Input: {@link #getType} is the MIME type of the data being sent.
994     * get*Extra can have either a {@link #EXTRA_TEXT}
995     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
996     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
997     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
998     * if the MIME type is unknown (this will only allow senders that can
999     * handle generic data streams).  If using {@link #EXTRA_TEXT}, you can
1000     * also optionally supply {@link #EXTRA_HTML_TEXT} for clients to retrieve
1001     * your text with HTML formatting.
1002     * <p>
1003     * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data
1004     * being sent can be supplied through {@link #setClipData(ClipData)}.  This
1005     * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing
1006     * content: URIs and other advanced features of {@link ClipData}.  If
1007     * using this approach, you still must supply the same data through the
1008     * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below
1009     * for compatibility with old applications.  If you don't set a ClipData,
1010     * it will be copied there for you when calling {@link Context#startActivity(Intent)}.
1011     * <p>
1012     * Optional standard extras, which may be interpreted by some recipients as
1013     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
1014     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
1015     * <p>
1016     * Output: nothing.
1017     */
1018    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1019    public static final String ACTION_SEND = "android.intent.action.SEND";
1020    /**
1021     * Activity Action: Deliver multiple data to someone else.
1022     * <p>
1023     * Like {@link #ACTION_SEND}, except the data is multiple.
1024     * <p>
1025     * Input: {@link #getType} is the MIME type of the data being sent.
1026     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
1027     * #EXTRA_STREAM} field, containing the data to be sent.  If using
1028     * {@link #EXTRA_TEXT}, you can also optionally supply {@link #EXTRA_HTML_TEXT}
1029     * for clients to retrieve your text with HTML formatting.
1030     * <p>
1031     * Multiple types are supported, and receivers should handle mixed types
1032     * whenever possible. The right way for the receiver to check them is to
1033     * use the content resolver on each URI. The intent sender should try to
1034     * put the most concrete mime type in the intent type, but it can fall
1035     * back to {@literal <type>/*} or {@literal *}/* as needed.
1036     * <p>
1037     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
1038     * be image/jpg, but if you are sending image/jpg and image/png, then the
1039     * intent's type should be image/*.
1040     * <p>
1041     * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data
1042     * being sent can be supplied through {@link #setClipData(ClipData)}.  This
1043     * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing
1044     * content: URIs and other advanced features of {@link ClipData}.  If
1045     * using this approach, you still must supply the same data through the
1046     * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below
1047     * for compatibility with old applications.  If you don't set a ClipData,
1048     * it will be copied there for you when calling {@link Context#startActivity(Intent)}.
1049     * <p>
1050     * Optional standard extras, which may be interpreted by some recipients as
1051     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
1052     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
1053     * <p>
1054     * Output: nothing.
1055     */
1056    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1057    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
1058    /**
1059     * Activity Action: Handle an incoming phone call.
1060     * <p>Input: nothing.
1061     * <p>Output: nothing.
1062     */
1063    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1064    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
1065    /**
1066     * Activity Action: Insert an empty item into the given container.
1067     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
1068     * in which to place the data.
1069     * <p>Output: URI of the new data that was created.
1070     */
1071    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1072    public static final String ACTION_INSERT = "android.intent.action.INSERT";
1073    /**
1074     * Activity Action: Create a new item in the given container, initializing it
1075     * from the current contents of the clipboard.
1076     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
1077     * in which to place the data.
1078     * <p>Output: URI of the new data that was created.
1079     */
1080    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1081    public static final String ACTION_PASTE = "android.intent.action.PASTE";
1082    /**
1083     * Activity Action: Delete the given data from its container.
1084     * <p>Input: {@link #getData} is URI of data to be deleted.
1085     * <p>Output: nothing.
1086     */
1087    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1088    public static final String ACTION_DELETE = "android.intent.action.DELETE";
1089    /**
1090     * Activity Action: Run the data, whatever that means.
1091     * <p>Input: ?  (Note: this is currently specific to the test harness.)
1092     * <p>Output: nothing.
1093     */
1094    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1095    public static final String ACTION_RUN = "android.intent.action.RUN";
1096    /**
1097     * Activity Action: Perform a data synchronization.
1098     * <p>Input: ?
1099     * <p>Output: ?
1100     */
1101    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1102    public static final String ACTION_SYNC = "android.intent.action.SYNC";
1103    /**
1104     * Activity Action: Pick an activity given an intent, returning the class
1105     * selected.
1106     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
1107     * used with {@link PackageManager#queryIntentActivities} to determine the
1108     * set of activities from which to pick.
1109     * <p>Output: Class name of the activity that was selected.
1110     */
1111    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1112    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
1113    /**
1114     * Activity Action: Perform a search.
1115     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1116     * is the text to search for.  If empty, simply
1117     * enter your search results Activity with the search UI activated.
1118     * <p>Output: nothing.
1119     */
1120    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1121    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1122    /**
1123     * Activity Action: Start the platform-defined tutorial
1124     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1125     * is the text to search for.  If empty, simply
1126     * enter your search results Activity with the search UI activated.
1127     * <p>Output: nothing.
1128     */
1129    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1130    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1131    /**
1132     * Activity Action: Perform a web search.
1133     * <p>
1134     * Input: {@link android.app.SearchManager#QUERY
1135     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1136     * a url starts with http or https, the site will be opened. If it is plain
1137     * text, Google search will be applied.
1138     * <p>
1139     * Output: nothing.
1140     */
1141    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1142    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1143    /**
1144     * Activity Action: Perform assist action.
1145     * <p>
1146     * Input: nothing
1147     * Output: nothing.
1148     */
1149    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1150    public static final String ACTION_ASSIST = "android.intent.action.ASSIST";
1151    /**
1152     * Activity Action: List all available applications
1153     * <p>Input: Nothing.
1154     * <p>Output: nothing.
1155     */
1156    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1157    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1158    /**
1159     * Activity Action: Show settings for choosing wallpaper
1160     * <p>Input: Nothing.
1161     * <p>Output: Nothing.
1162     */
1163    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1164    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1165
1166    /**
1167     * Activity Action: Show activity for reporting a bug.
1168     * <p>Input: Nothing.
1169     * <p>Output: Nothing.
1170     */
1171    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1172    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1173
1174    /**
1175     *  Activity Action: Main entry point for factory tests.  Only used when
1176     *  the device is booting in factory test node.  The implementing package
1177     *  must be installed in the system image.
1178     *  <p>Input: nothing
1179     *  <p>Output: nothing
1180     */
1181    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1182
1183    /**
1184     * Activity Action: The user pressed the "call" button to go to the dialer
1185     * or other appropriate UI for placing a call.
1186     * <p>Input: Nothing.
1187     * <p>Output: Nothing.
1188     */
1189    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1190    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1191
1192    /**
1193     * Activity Action: Start Voice Command.
1194     * <p>Input: Nothing.
1195     * <p>Output: Nothing.
1196     */
1197    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1198    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1199
1200    /**
1201     * Activity Action: Start action associated with long pressing on the
1202     * search key.
1203     * <p>Input: Nothing.
1204     * <p>Output: Nothing.
1205     */
1206    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1207    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1208
1209    /**
1210     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1211     * This intent is delivered to the package which installed the application, usually
1212     * Google Play.
1213     * <p>Input: No data is specified. The bug report is passed in using
1214     * an {@link #EXTRA_BUG_REPORT} field.
1215     * <p>Output: Nothing.
1216     *
1217     * @see #EXTRA_BUG_REPORT
1218     */
1219    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1220    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1221
1222    /**
1223     * Activity Action: Show power usage information to the user.
1224     * <p>Input: Nothing.
1225     * <p>Output: Nothing.
1226     */
1227    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1228    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1229
1230    /**
1231     * Activity Action: Setup wizard to launch after a platform update.  This
1232     * activity should have a string meta-data field associated with it,
1233     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1234     * the platform for setup.  The activity will be launched only if
1235     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1236     * same value.
1237     * <p>Input: Nothing.
1238     * <p>Output: Nothing.
1239     * @hide
1240     */
1241    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1242    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1243
1244    /**
1245     * Activity Action: Show settings for managing network data usage of a
1246     * specific application. Applications should define an activity that offers
1247     * options to control data usage.
1248     */
1249    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1250    public static final String ACTION_MANAGE_NETWORK_USAGE =
1251            "android.intent.action.MANAGE_NETWORK_USAGE";
1252
1253    /**
1254     * Activity Action: Launch application installer.
1255     * <p>
1256     * Input: The data must be a content: or file: URI at which the application
1257     * can be retrieved.  As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1},
1258     * you can also use "package:<package-name>" to install an application for the
1259     * current user that is already installed for another user. You can optionally supply
1260     * {@link #EXTRA_INSTALLER_PACKAGE_NAME}, {@link #EXTRA_NOT_UNKNOWN_SOURCE},
1261     * {@link #EXTRA_ALLOW_REPLACE}, and {@link #EXTRA_RETURN_RESULT}.
1262     * <p>
1263     * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
1264     * succeeded.
1265     *
1266     * @see #EXTRA_INSTALLER_PACKAGE_NAME
1267     * @see #EXTRA_NOT_UNKNOWN_SOURCE
1268     * @see #EXTRA_RETURN_RESULT
1269     */
1270    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1271    public static final String ACTION_INSTALL_PACKAGE = "android.intent.action.INSTALL_PACKAGE";
1272
1273    /**
1274     * Used as a string extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
1275     * package.  Specifies the installer package name; this package will receive the
1276     * {@link #ACTION_APP_ERROR} intent.
1277     */
1278    public static final String EXTRA_INSTALLER_PACKAGE_NAME
1279            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
1280
1281    /**
1282     * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
1283     * package.  Specifies that the application being installed should not be
1284     * treated as coming from an unknown source, but as coming from the app
1285     * invoking the Intent.  For this to work you must start the installer with
1286     * startActivityForResult().
1287     */
1288    public static final String EXTRA_NOT_UNKNOWN_SOURCE
1289            = "android.intent.extra.NOT_UNKNOWN_SOURCE";
1290
1291    /**
1292     * Used as a URI extra field with {@link #ACTION_INSTALL_PACKAGE} and
1293     * {@link #ACTION_VIEW} to indicate the URI from which the local APK in the Intent
1294     * data field originated from.
1295     */
1296    public static final String EXTRA_ORIGINATING_URI
1297            = "android.intent.extra.ORIGINATING_URI";
1298
1299    /**
1300     * Used as a URI extra field with {@link #ACTION_INSTALL_PACKAGE} and
1301     * {@link #ACTION_VIEW} to indicate the HTTP referrer URI associated with the Intent
1302     * data field or {@link #EXTRA_ORIGINATING_URI}.
1303     */
1304    public static final String EXTRA_REFERRER
1305            = "android.intent.extra.REFERRER";
1306
1307    /**
1308     * Used as an int extra field with {@link #ACTION_INSTALL_PACKAGE} and
1309     * {@link} #ACTION_VIEW} to indicate the uid of the package that initiated the install
1310     * @hide
1311     */
1312    public static final String EXTRA_ORIGINATING_UID
1313            = "android.intent.extra.ORIGINATING_UID";
1314
1315    /**
1316     * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
1317     * package.  Tells the installer UI to skip the confirmation with the user
1318     * if the .apk is replacing an existing one.
1319     * @deprecated As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, Android
1320     * will no longer show an interstitial message about updating existing
1321     * applications so this is no longer needed.
1322     */
1323    @Deprecated
1324    public static final String EXTRA_ALLOW_REPLACE
1325            = "android.intent.extra.ALLOW_REPLACE";
1326
1327    /**
1328     * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} or
1329     * {@link #ACTION_UNINSTALL_PACKAGE}.  Specifies that the installer UI should
1330     * return to the application the result code of the install/uninstall.  The returned result
1331     * code will be {@link android.app.Activity#RESULT_OK} on success or
1332     * {@link android.app.Activity#RESULT_FIRST_USER} on failure.
1333     */
1334    public static final String EXTRA_RETURN_RESULT
1335            = "android.intent.extra.RETURN_RESULT";
1336
1337    /**
1338     * Package manager install result code.  @hide because result codes are not
1339     * yet ready to be exposed.
1340     */
1341    public static final String EXTRA_INSTALL_RESULT
1342            = "android.intent.extra.INSTALL_RESULT";
1343
1344    /**
1345     * Activity Action: Launch application uninstaller.
1346     * <p>
1347     * Input: The data must be a package: URI whose scheme specific part is
1348     * the package name of the current installed package to be uninstalled.
1349     * You can optionally supply {@link #EXTRA_RETURN_RESULT}.
1350     * <p>
1351     * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
1352     * succeeded.
1353     */
1354    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1355    public static final String ACTION_UNINSTALL_PACKAGE = "android.intent.action.UNINSTALL_PACKAGE";
1356
1357    /**
1358     * Specify whether the package should be uninstalled for all users.
1359     * @hide because these should not be part of normal application flow.
1360     */
1361    public static final String EXTRA_UNINSTALL_ALL_USERS
1362            = "android.intent.extra.UNINSTALL_ALL_USERS";
1363
1364    /**
1365     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1366     * describing the last run version of the platform that was setup.
1367     * @hide
1368     */
1369    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1370
1371    // ---------------------------------------------------------------------
1372    // ---------------------------------------------------------------------
1373    // Standard intent broadcast actions (see action variable).
1374
1375    /**
1376     * Broadcast Action: Sent after the screen turns off.
1377     *
1378     * <p class="note">This is a protected intent that can only be sent
1379     * by the system.
1380     */
1381    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1382    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1383    /**
1384     * Broadcast Action: Sent after the screen turns on.
1385     *
1386     * <p class="note">This is a protected intent that can only be sent
1387     * by the system.
1388     */
1389    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1390    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1391
1392    /**
1393     * Broadcast Action: Sent after the system stops dreaming.
1394     *
1395     * <p class="note">This is a protected intent that can only be sent by the system.
1396     * It is only sent to registered receivers.</p>
1397     */
1398    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1399    public static final String ACTION_DREAMING_STOPPED = "android.intent.action.DREAMING_STOPPED";
1400
1401    /**
1402     * Broadcast Action: Sent after the system starts dreaming.
1403     *
1404     * <p class="note">This is a protected intent that can only be sent by the system.
1405     * It is only sent to registered receivers.</p>
1406     */
1407    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1408    public static final String ACTION_DREAMING_STARTED = "android.intent.action.DREAMING_STARTED";
1409
1410    /**
1411     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1412     * keyguard is gone).
1413     *
1414     * <p class="note">This is a protected intent that can only be sent
1415     * by the system.
1416     */
1417    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1418    public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
1419
1420    /**
1421     * Broadcast Action: The current time has changed.  Sent every
1422     * minute.  You can <em>not</em> receive this through components declared
1423     * in manifests, only by exlicitly registering for it with
1424     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1425     * Context.registerReceiver()}.
1426     *
1427     * <p class="note">This is a protected intent that can only be sent
1428     * by the system.
1429     */
1430    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1431    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1432    /**
1433     * Broadcast Action: The time was set.
1434     */
1435    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1436    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1437    /**
1438     * Broadcast Action: The date has changed.
1439     */
1440    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1441    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1442    /**
1443     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1444     * <ul>
1445     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1446     * </ul>
1447     *
1448     * <p class="note">This is a protected intent that can only be sent
1449     * by the system.
1450     */
1451    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1452    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1453    /**
1454     * Clear DNS Cache Action: This is broadcast when networks have changed and old
1455     * DNS entries should be tossed.
1456     * @hide
1457     */
1458    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1459    public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
1460    /**
1461     * Alarm Changed Action: This is broadcast when the AlarmClock
1462     * application's alarm is set or unset.  It is used by the
1463     * AlarmClock application and the StatusBar service.
1464     * @hide
1465     */
1466    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1467    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1468    /**
1469     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1470     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1471     * @hide
1472     */
1473    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1474    public static final String ACTION_SYNC_STATE_CHANGED
1475            = "android.intent.action.SYNC_STATE_CHANGED";
1476    /**
1477     * Broadcast Action: This is broadcast once, after the system has finished
1478     * booting.  It can be used to perform application-specific initialization,
1479     * such as installing alarms.  You must hold the
1480     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1481     * in order to receive this broadcast.
1482     *
1483     * <p class="note">This is a protected intent that can only be sent
1484     * by the system.
1485     */
1486    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1487    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1488    /**
1489     * Broadcast Action: This is broadcast when a user action should request a
1490     * temporary system dialog to dismiss.  Some examples of temporary system
1491     * dialogs are the notification window-shade and the recent tasks dialog.
1492     */
1493    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1494    /**
1495     * Broadcast Action: Trigger the download and eventual installation
1496     * of a package.
1497     * <p>Input: {@link #getData} is the URI of the package file to download.
1498     *
1499     * <p class="note">This is a protected intent that can only be sent
1500     * by the system.
1501     *
1502     * @deprecated This constant has never been used.
1503     */
1504    @Deprecated
1505    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1506    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1507    /**
1508     * Broadcast Action: A new application package has been installed on the
1509     * device. The data contains the name of the package.  Note that the
1510     * newly installed package does <em>not</em> receive this broadcast.
1511     * <p>May include the following extras:
1512     * <ul>
1513     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1514     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1515     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1516     * </ul>
1517     *
1518     * <p class="note">This is a protected intent that can only be sent
1519     * by the system.
1520     */
1521    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1522    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1523    /**
1524     * Broadcast Action: A new version of an application package has been
1525     * installed, replacing an existing version that was previously installed.
1526     * The data contains the name of the package.
1527     * <p>May include the following extras:
1528     * <ul>
1529     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1530     * </ul>
1531     *
1532     * <p class="note">This is a protected intent that can only be sent
1533     * by the system.
1534     */
1535    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1536    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1537    /**
1538     * Broadcast Action: A new version of your application has been installed
1539     * over an existing one.  This is only sent to the application that was
1540     * replaced.  It does not contain any additional data; to receive it, just
1541     * use an intent filter for this action.
1542     *
1543     * <p class="note">This is a protected intent that can only be sent
1544     * by the system.
1545     */
1546    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1547    public static final String ACTION_MY_PACKAGE_REPLACED = "android.intent.action.MY_PACKAGE_REPLACED";
1548    /**
1549     * Broadcast Action: An existing application package has been removed from
1550     * the device.  The data contains the name of the package.  The package
1551     * that is being installed does <em>not</em> receive this Intent.
1552     * <ul>
1553     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1554     * to the package.
1555     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1556     * application -- data and code -- is being removed.
1557     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1558     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1559     * </ul>
1560     *
1561     * <p class="note">This is a protected intent that can only be sent
1562     * by the system.
1563     */
1564    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1565    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1566    /**
1567     * Broadcast Action: An existing application package has been completely
1568     * removed from the device.  The data contains the name of the package.
1569     * This is like {@link #ACTION_PACKAGE_REMOVED}, but only set when
1570     * {@link #EXTRA_DATA_REMOVED} is true and
1571     * {@link #EXTRA_REPLACING} is false of that broadcast.
1572     *
1573     * <ul>
1574     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1575     * to the package.
1576     * </ul>
1577     *
1578     * <p class="note">This is a protected intent that can only be sent
1579     * by the system.
1580     */
1581    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1582    public static final String ACTION_PACKAGE_FULLY_REMOVED
1583            = "android.intent.action.PACKAGE_FULLY_REMOVED";
1584    /**
1585     * Broadcast Action: An existing application package has been changed (e.g.
1586     * a component has been enabled or disabled).  The data contains the name of
1587     * the package.
1588     * <ul>
1589     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1590     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
1591     * of the changed components.
1592     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
1593     * default action of restarting the application.
1594     * </ul>
1595     *
1596     * <p class="note">This is a protected intent that can only be sent
1597     * by the system.
1598     */
1599    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1600    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1601    /**
1602     * @hide
1603     * Broadcast Action: Ask system services if there is any reason to
1604     * restart the given package.  The data contains the name of the
1605     * package.
1606     * <ul>
1607     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1608     * <li> {@link #EXTRA_PACKAGES} String array of all packages to check.
1609     * </ul>
1610     *
1611     * <p class="note">This is a protected intent that can only be sent
1612     * by the system.
1613     */
1614    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1615    public static final String ACTION_QUERY_PACKAGE_RESTART = "android.intent.action.QUERY_PACKAGE_RESTART";
1616    /**
1617     * Broadcast Action: The user has restarted a package, and all of its
1618     * processes have been killed.  All runtime state
1619     * associated with it (processes, alarms, notifications, etc) should
1620     * be removed.  Note that the restarted package does <em>not</em>
1621     * receive this broadcast.
1622     * The data contains the name of the package.
1623     * <ul>
1624     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1625     * </ul>
1626     *
1627     * <p class="note">This is a protected intent that can only be sent
1628     * by the system.
1629     */
1630    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1631    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1632    /**
1633     * Broadcast Action: The user has cleared the data of a package.  This should
1634     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1635     * its persistent data is erased and this broadcast sent.
1636     * Note that the cleared package does <em>not</em>
1637     * receive this broadcast. The data contains the name of the package.
1638     * <ul>
1639     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1640     * </ul>
1641     *
1642     * <p class="note">This is a protected intent that can only be sent
1643     * by the system.
1644     */
1645    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1646    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1647    /**
1648     * Broadcast Action: A user ID has been removed from the system.  The user
1649     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1650     *
1651     * <p class="note">This is a protected intent that can only be sent
1652     * by the system.
1653     */
1654    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1655    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1656
1657    /**
1658     * Broadcast Action: Sent to the installer package of an application
1659     * when that application is first launched (that is the first time it
1660     * is moved out of the stopped state).  The data contains the name of the package.
1661     *
1662     * <p class="note">This is a protected intent that can only be sent
1663     * by the system.
1664     */
1665    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1666    public static final String ACTION_PACKAGE_FIRST_LAUNCH = "android.intent.action.PACKAGE_FIRST_LAUNCH";
1667
1668    /**
1669     * Broadcast Action: Sent to the system package verifier when a package
1670     * needs to be verified. The data contains the package URI.
1671     * <p class="note">
1672     * This is a protected intent that can only be sent by the system.
1673     * </p>
1674     */
1675    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1676    public static final String ACTION_PACKAGE_NEEDS_VERIFICATION = "android.intent.action.PACKAGE_NEEDS_VERIFICATION";
1677
1678    /**
1679     * Broadcast Action: Sent to the system package verifier when a package is
1680     * verified. The data contains the package URI.
1681     * <p class="note">
1682     * This is a protected intent that can only be sent by the system.
1683     */
1684    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1685    public static final String ACTION_PACKAGE_VERIFIED = "android.intent.action.PACKAGE_VERIFIED";
1686
1687    /**
1688     * Broadcast Action: Resources for a set of packages (which were
1689     * previously unavailable) are currently
1690     * available since the media on which they exist is available.
1691     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1692     * list of packages whose availability changed.
1693     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1694     * list of uids of packages whose availability changed.
1695     * Note that the
1696     * packages in this list do <em>not</em> receive this broadcast.
1697     * The specified set of packages are now available on the system.
1698     * <p>Includes the following extras:
1699     * <ul>
1700     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1701     * whose resources(were previously unavailable) are currently available.
1702     * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the
1703     * packages whose resources(were previously unavailable)
1704     * are  currently available.
1705     * </ul>
1706     *
1707     * <p class="note">This is a protected intent that can only be sent
1708     * by the system.
1709     */
1710    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1711    public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE =
1712        "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
1713
1714    /**
1715     * Broadcast Action: Resources for a set of packages are currently
1716     * unavailable since the media on which they exist is unavailable.
1717     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1718     * list of packages whose availability changed.
1719     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1720     * list of uids of packages whose availability changed.
1721     * The specified set of packages can no longer be
1722     * launched and are practically unavailable on the system.
1723     * <p>Inclues the following extras:
1724     * <ul>
1725     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1726     * whose resources are no longer available.
1727     * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages
1728     * whose resources are no longer available.
1729     * </ul>
1730     *
1731     * <p class="note">This is a protected intent that can only be sent
1732     * by the system.
1733     */
1734    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1735    public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE =
1736        "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE";
1737
1738    /**
1739     * Broadcast Action:  The current system wallpaper has changed.  See
1740     * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
1741     * This should <em>only</em> be used to determine when the wallpaper
1742     * has changed to show the new wallpaper to the user.  You should certainly
1743     * never, in response to this, change the wallpaper or other attributes of
1744     * it such as the suggested size.  That would be crazy, right?  You'd cause
1745     * all kinds of loops, especially if other apps are doing similar things,
1746     * right?  Of course.  So please don't do this.
1747     *
1748     * @deprecated Modern applications should use
1749     * {@link android.view.WindowManager.LayoutParams#FLAG_SHOW_WALLPAPER
1750     * WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER} to have the wallpaper
1751     * shown behind their UI, rather than watching for this broadcast and
1752     * rendering the wallpaper on their own.
1753     */
1754    @Deprecated @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1755    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1756    /**
1757     * Broadcast Action: The current device {@link android.content.res.Configuration}
1758     * (orientation, locale, etc) has changed.  When such a change happens, the
1759     * UIs (view hierarchy) will need to be rebuilt based on this new
1760     * information; for the most part, applications don't need to worry about
1761     * this, because the system will take care of stopping and restarting the
1762     * application to make sure it sees the new changes.  Some system code that
1763     * can not be restarted will need to watch for this action and handle it
1764     * appropriately.
1765     *
1766     * <p class="note">
1767     * You can <em>not</em> receive this through components declared
1768     * in manifests, only by explicitly registering for it with
1769     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1770     * Context.registerReceiver()}.
1771     *
1772     * <p class="note">This is a protected intent that can only be sent
1773     * by the system.
1774     *
1775     * @see android.content.res.Configuration
1776     */
1777    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1778    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1779    /**
1780     * Broadcast Action: The current device's locale has changed.
1781     *
1782     * <p class="note">This is a protected intent that can only be sent
1783     * by the system.
1784     */
1785    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1786    public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
1787    /**
1788     * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
1789     * charging state, level, and other information about the battery.
1790     * See {@link android.os.BatteryManager} for documentation on the
1791     * contents of the Intent.
1792     *
1793     * <p class="note">
1794     * You can <em>not</em> receive this through components declared
1795     * in manifests, only by explicitly registering for it with
1796     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1797     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1798     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1799     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1800     * broadcasts that are sent and can be received through manifest
1801     * receivers.
1802     *
1803     * <p class="note">This is a protected intent that can only be sent
1804     * by the system.
1805     */
1806    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1807    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1808    /**
1809     * Broadcast Action:  Indicates low battery condition on the device.
1810     * This broadcast corresponds to the "Low battery warning" system dialog.
1811     *
1812     * <p class="note">This is a protected intent that can only be sent
1813     * by the system.
1814     */
1815    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1816    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1817    /**
1818     * Broadcast Action:  Indicates the battery is now okay after being low.
1819     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1820     * gone back up to an okay state.
1821     *
1822     * <p class="note">This is a protected intent that can only be sent
1823     * by the system.
1824     */
1825    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1826    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1827    /**
1828     * Broadcast Action:  External power has been connected to the device.
1829     * This is intended for applications that wish to register specifically to this notification.
1830     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1831     * stay active to receive this notification.  This action can be used to implement actions
1832     * that wait until power is available to trigger.
1833     *
1834     * <p class="note">This is a protected intent that can only be sent
1835     * by the system.
1836     */
1837    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1838    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1839    /**
1840     * Broadcast Action:  External power has been removed from the device.
1841     * This is intended for applications that wish to register specifically to this notification.
1842     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1843     * stay active to receive this notification.  This action can be used to implement actions
1844     * that wait until power is available to trigger.
1845     *
1846     * <p class="note">This is a protected intent that can only be sent
1847     * by the system.
1848     */
1849    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1850    public static final String ACTION_POWER_DISCONNECTED =
1851            "android.intent.action.ACTION_POWER_DISCONNECTED";
1852    /**
1853     * Broadcast Action:  Device is shutting down.
1854     * This is broadcast when the device is being shut down (completely turned
1855     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1856     * will proceed and all unsaved data lost.  Apps will not normally need
1857     * to handle this, since the foreground activity will be paused as well.
1858     *
1859     * <p class="note">This is a protected intent that can only be sent
1860     * by the system.
1861     */
1862    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1863    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1864    /**
1865     * Activity Action:  Start this activity to request system shutdown.
1866     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1867     * to request confirmation from the user before shutting down.
1868     *
1869     * <p class="note">This is a protected intent that can only be sent
1870     * by the system.
1871     *
1872     * {@hide}
1873     */
1874    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1875    /**
1876     * Broadcast Action:  A sticky broadcast that indicates low memory
1877     * condition on the device
1878     *
1879     * <p class="note">This is a protected intent that can only be sent
1880     * by the system.
1881     */
1882    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1883    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1884    /**
1885     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1886     *
1887     * <p class="note">This is a protected intent that can only be sent
1888     * by the system.
1889     */
1890    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1891    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1892    /**
1893     * Broadcast Action:  A sticky broadcast that indicates a memory full
1894     * condition on the device. This is intended for activities that want
1895     * to be able to fill the data partition completely, leaving only
1896     * enough free space to prevent system-wide SQLite failures.
1897     *
1898     * <p class="note">This is a protected intent that can only be sent
1899     * by the system.
1900     *
1901     * {@hide}
1902     */
1903    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1904    public static final String ACTION_DEVICE_STORAGE_FULL = "android.intent.action.DEVICE_STORAGE_FULL";
1905    /**
1906     * Broadcast Action:  Indicates memory full condition on the device
1907     * no longer exists.
1908     *
1909     * <p class="note">This is a protected intent that can only be sent
1910     * by the system.
1911     *
1912     * {@hide}
1913     */
1914    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1915    public static final String ACTION_DEVICE_STORAGE_NOT_FULL = "android.intent.action.DEVICE_STORAGE_NOT_FULL";
1916    /**
1917     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1918     * and package management should be started.
1919     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1920     * notification.
1921     */
1922    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1923    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1924    /**
1925     * Broadcast Action:  The device has entered USB Mass Storage mode.
1926     * This is used mainly for the USB Settings panel.
1927     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1928     * when the SD card file system is mounted or unmounted
1929     * @deprecated replaced by android.os.storage.StorageEventListener
1930     */
1931    @Deprecated
1932    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1933
1934    /**
1935     * Broadcast Action:  The device has exited USB Mass Storage mode.
1936     * This is used mainly for the USB Settings panel.
1937     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1938     * when the SD card file system is mounted or unmounted
1939     * @deprecated replaced by android.os.storage.StorageEventListener
1940     */
1941    @Deprecated
1942    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1943
1944    /**
1945     * Broadcast Action:  External media has been removed.
1946     * The path to the mount point for the removed media is contained in the Intent.mData field.
1947     */
1948    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1949    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1950
1951    /**
1952     * Broadcast Action:  External media is present, but not mounted at its mount point.
1953     * The path to the mount point for the removed media is contained in the Intent.mData field.
1954     */
1955    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1956    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1957
1958    /**
1959     * Broadcast Action:  External media is present, and being disk-checked
1960     * The path to the mount point for the checking media is contained in the Intent.mData field.
1961     */
1962    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1963    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1964
1965    /**
1966     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1967     * The path to the mount point for the checking media is contained in the Intent.mData field.
1968     */
1969    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1970    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1971
1972    /**
1973     * Broadcast Action:  External media is present and mounted at its mount point.
1974     * The path to the mount point for the removed media is contained in the Intent.mData field.
1975     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1976     * media was mounted read only.
1977     */
1978    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1979    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1980
1981    /**
1982     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1983     * The path to the mount point for the shared media is contained in the Intent.mData field.
1984     */
1985    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1986    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1987
1988    /**
1989     * Broadcast Action:  External media is no longer being shared via USB mass storage.
1990     * The path to the mount point for the previously shared media is contained in the Intent.mData field.
1991     *
1992     * @hide
1993     */
1994    public static final String ACTION_MEDIA_UNSHARED = "android.intent.action.MEDIA_UNSHARED";
1995
1996    /**
1997     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1998     * The path to the mount point for the removed media is contained in the Intent.mData field.
1999     */
2000    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2001    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
2002
2003    /**
2004     * Broadcast Action:  External media is present but cannot be mounted.
2005     * The path to the mount point for the removed media is contained in the Intent.mData field.
2006     */
2007    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2008    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
2009
2010   /**
2011     * Broadcast Action:  User has expressed the desire to remove the external storage media.
2012     * Applications should close all files they have open within the mount point when they receive this intent.
2013     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
2014     */
2015    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2016    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
2017
2018    /**
2019     * Broadcast Action:  The media scanner has started scanning a directory.
2020     * The path to the directory being scanned is contained in the Intent.mData field.
2021     */
2022    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2023    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
2024
2025   /**
2026     * Broadcast Action:  The media scanner has finished scanning a directory.
2027     * The path to the scanned directory is contained in the Intent.mData field.
2028     */
2029    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2030    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
2031
2032   /**
2033     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
2034     * The path to the file is contained in the Intent.mData field.
2035     */
2036    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2037    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
2038
2039   /**
2040     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
2041     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
2042     * caused the broadcast.
2043     */
2044    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2045    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
2046
2047    /**
2048     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
2049     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
2050     * caused the broadcast.
2051     */
2052    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2053    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
2054
2055    // *** NOTE: @todo(*) The following really should go into a more domain-specific
2056    // location; they are not general-purpose actions.
2057
2058    /**
2059     * Broadcast Action: A GTalk connection has been established.
2060     */
2061    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2062    public static final String ACTION_GTALK_SERVICE_CONNECTED =
2063            "android.intent.action.GTALK_CONNECTED";
2064
2065    /**
2066     * Broadcast Action: A GTalk connection has been disconnected.
2067     */
2068    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2069    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
2070            "android.intent.action.GTALK_DISCONNECTED";
2071
2072    /**
2073     * Broadcast Action: An input method has been changed.
2074     */
2075    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2076    public static final String ACTION_INPUT_METHOD_CHANGED =
2077            "android.intent.action.INPUT_METHOD_CHANGED";
2078
2079    /**
2080     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
2081     * more radios have been turned off or on. The intent will have the following extra value:</p>
2082     * <ul>
2083     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
2084     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
2085     *   turned off</li>
2086     * </ul>
2087     *
2088     * <p class="note">This is a protected intent that can only be sent
2089     * by the system.
2090     */
2091    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2092    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
2093
2094    /**
2095     * Broadcast Action: Some content providers have parts of their namespace
2096     * where they publish new events or items that the user may be especially
2097     * interested in. For these things, they may broadcast this action when the
2098     * set of interesting items change.
2099     *
2100     * For example, GmailProvider sends this notification when the set of unread
2101     * mail in the inbox changes.
2102     *
2103     * <p>The data of the intent identifies which part of which provider
2104     * changed. When queried through the content resolver, the data URI will
2105     * return the data set in question.
2106     *
2107     * <p>The intent will have the following extra values:
2108     * <ul>
2109     *   <li><em>count</em> - The number of items in the data set. This is the
2110     *       same as the number of items in the cursor returned by querying the
2111     *       data URI. </li>
2112     * </ul>
2113     *
2114     * This intent will be sent at boot (if the count is non-zero) and when the
2115     * data set changes. It is possible for the data set to change without the
2116     * count changing (for example, if a new unread message arrives in the same
2117     * sync operation in which a message is archived). The phone should still
2118     * ring/vibrate/etc as normal in this case.
2119     */
2120    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2121    public static final String ACTION_PROVIDER_CHANGED =
2122            "android.intent.action.PROVIDER_CHANGED";
2123
2124    /**
2125     * Broadcast Action: Wired Headset plugged in or unplugged.
2126     *
2127     * <p>The intent will have the following extra values:
2128     * <ul>
2129     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2130     *   <li><em>name</em> - Headset type, human readable string </li>
2131     *   <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
2132     * </ul>
2133     * </ul>
2134     */
2135    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2136    public static final String ACTION_HEADSET_PLUG =
2137            "android.intent.action.HEADSET_PLUG";
2138
2139    /**
2140     * Broadcast Action: An analog audio speaker/headset plugged in or unplugged.
2141     *
2142     * <p>The intent will have the following extra values:
2143     * <ul>
2144     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2145     *   <li><em>name</em> - Headset type, human readable string </li>
2146     * </ul>
2147     * </ul>
2148     * @hide
2149     */
2150    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2151    public static final String ACTION_ANALOG_AUDIO_DOCK_PLUG =
2152            "android.intent.action.ANALOG_AUDIO_DOCK_PLUG";
2153
2154    /**
2155     * Broadcast Action: A digital audio speaker/headset plugged in or unplugged.
2156     *
2157     * <p>The intent will have the following extra values:
2158     * <ul>
2159     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2160     *   <li><em>name</em> - Headset type, human readable string </li>
2161     * </ul>
2162     * </ul>
2163     * @hide
2164     */
2165    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2166    public static final String ACTION_DIGITAL_AUDIO_DOCK_PLUG =
2167            "android.intent.action.DIGITAL_AUDIO_DOCK_PLUG";
2168
2169    /**
2170     * Broadcast Action: A HMDI cable was plugged or unplugged
2171     *
2172     * <p>The intent will have the following extra values:
2173     * <ul>
2174     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2175     *   <li><em>name</em> - HDMI cable, human readable string </li>
2176     * </ul>
2177     * </ul>
2178     * @hide
2179     */
2180    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2181    public static final String ACTION_HDMI_AUDIO_PLUG =
2182            "android.intent.action.HDMI_AUDIO_PLUG";
2183
2184    /**
2185     * Broadcast Action: A USB audio accessory was plugged in or unplugged.
2186     *
2187     * <p>The intent will have the following extra values:
2188     * <ul>
2189     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2190     *   <li><em>card</em> - ALSA card number (integer) </li>
2191     *   <li><em>device</em> - ALSA device number (integer) </li>
2192     * </ul>
2193     * </ul>
2194     * @hide
2195     */
2196    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2197    public static final String ACTION_USB_AUDIO_ACCESSORY_PLUG =
2198            "android.intent.action.USB_AUDIO_ACCESSORY_PLUG";
2199
2200    /**
2201     * Broadcast Action: A USB audio device was plugged in or unplugged.
2202     *
2203     * <p>The intent will have the following extra values:
2204     * <ul>
2205     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2206     *   <li><em>card</em> - ALSA card number (integer) </li>
2207     *   <li><em>device</em> - ALSA device number (integer) </li>
2208     * </ul>
2209     * </ul>
2210     * @hide
2211     */
2212    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2213    public static final String ACTION_USB_AUDIO_DEVICE_PLUG =
2214            "android.intent.action.USB_AUDIO_DEVICE_PLUG";
2215
2216    /**
2217     * <p>Broadcast Action: The user has switched on advanced settings in the settings app:</p>
2218     * <ul>
2219     *   <li><em>state</em> - A boolean value indicating whether the settings is on or off.</li>
2220     * </ul>
2221     *
2222     * <p class="note">This is a protected intent that can only be sent
2223     * by the system.
2224     *
2225     * @hide
2226     */
2227    //@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2228    public static final String ACTION_ADVANCED_SETTINGS_CHANGED
2229            = "android.intent.action.ADVANCED_SETTINGS";
2230
2231    /**
2232     * Broadcast Action: An outgoing call is about to be placed.
2233     *
2234     * <p>The Intent will have the following extra value:
2235     * <ul>
2236     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
2237     *       the phone number originally intended to be dialed.</li>
2238     * </ul>
2239     * <p>Once the broadcast is finished, the resultData is used as the actual
2240     * number to call.  If  <code>null</code>, no call will be placed.</p>
2241     * <p>It is perfectly acceptable for multiple receivers to process the
2242     * outgoing call in turn: for example, a parental control application
2243     * might verify that the user is authorized to place the call at that
2244     * time, then a number-rewriting application might add an area code if
2245     * one was not specified.</p>
2246     * <p>For consistency, any receiver whose purpose is to prohibit phone
2247     * calls should have a priority of 0, to ensure it will see the final
2248     * phone number to be dialed.
2249     * Any receiver whose purpose is to rewrite phone numbers to be called
2250     * should have a positive priority.
2251     * Negative priorities are reserved for the system for this broadcast;
2252     * using them may cause problems.</p>
2253     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
2254     * abort the broadcast.</p>
2255     * <p>Emergency calls cannot be intercepted using this mechanism, and
2256     * other calls cannot be modified to call emergency numbers using this
2257     * mechanism.
2258     * <p>You must hold the
2259     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
2260     * permission to receive this Intent.</p>
2261     *
2262     * <p class="note">This is a protected intent that can only be sent
2263     * by the system.
2264     */
2265    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2266    public static final String ACTION_NEW_OUTGOING_CALL =
2267            "android.intent.action.NEW_OUTGOING_CALL";
2268
2269    /**
2270     * Broadcast Action: Have the device reboot.  This is only for use by
2271     * system code.
2272     *
2273     * <p class="note">This is a protected intent that can only be sent
2274     * by the system.
2275     */
2276    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2277    public static final String ACTION_REBOOT =
2278            "android.intent.action.REBOOT";
2279
2280    /**
2281     * Broadcast Action:  A sticky broadcast for changes in the physical
2282     * docking state of the device.
2283     *
2284     * <p>The intent will have the following extra values:
2285     * <ul>
2286     *   <li><em>{@link #EXTRA_DOCK_STATE}</em> - the current dock
2287     *       state, indicating which dock the device is physically in.</li>
2288     * </ul>
2289     * <p>This is intended for monitoring the current physical dock state.
2290     * See {@link android.app.UiModeManager} for the normal API dealing with
2291     * dock mode changes.
2292     */
2293    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2294    public static final String ACTION_DOCK_EVENT =
2295            "android.intent.action.DOCK_EVENT";
2296
2297    /**
2298     * Broadcast Action: a remote intent is to be broadcasted.
2299     *
2300     * A remote intent is used for remote RPC between devices. The remote intent
2301     * is serialized and sent from one device to another device. The receiving
2302     * device parses the remote intent and broadcasts it. Note that anyone can
2303     * broadcast a remote intent. However, if the intent receiver of the remote intent
2304     * does not trust intent broadcasts from arbitrary intent senders, it should require
2305     * the sender to hold certain permissions so only trusted sender's broadcast will be
2306     * let through.
2307     * @hide
2308     */
2309    public static final String ACTION_REMOTE_INTENT =
2310            "com.google.android.c2dm.intent.RECEIVE";
2311
2312    /**
2313     * Broadcast Action: hook for permforming cleanup after a system update.
2314     *
2315     * The broadcast is sent when the system is booting, before the
2316     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
2317     * image.  A receiver for this should do its work and then disable itself
2318     * so that it does not get run again at the next boot.
2319     * @hide
2320     */
2321    public static final String ACTION_PRE_BOOT_COMPLETED =
2322            "android.intent.action.PRE_BOOT_COMPLETED";
2323
2324    /**
2325     * Sent the first time a user is starting, to allow system apps to
2326     * perform one time initialization.  (This will not be seen by third
2327     * party applications because a newly initialized user does not have any
2328     * third party applications installed for it.)  This is sent early in
2329     * starting the user, around the time the home app is started, before
2330     * {@link #ACTION_BOOT_COMPLETED} is sent.  This is sent as a foreground
2331     * broadcast, since it is part of a visible user interaction; be as quick
2332     * as possible when handling it.
2333     */
2334    public static final String ACTION_USER_INITIALIZE =
2335            "android.intent.action.USER_INITIALIZE";
2336
2337    /**
2338     * Sent when a user switch is happening, causing the process's user to be
2339     * brought to the foreground.  This is only sent to receivers registered
2340     * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
2341     * Context.registerReceiver}.  It is sent to the user that is going to the
2342     * foreground.  This is sent as a foreground
2343     * broadcast, since it is part of a visible user interaction; be as quick
2344     * as possible when handling it.
2345     */
2346    public static final String ACTION_USER_FOREGROUND =
2347            "android.intent.action.USER_FOREGROUND";
2348
2349    /**
2350     * Sent when a user switch is happening, causing the process's user to be
2351     * sent to the background.  This is only sent to receivers registered
2352     * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
2353     * Context.registerReceiver}.  It is sent to the user that is going to the
2354     * background.  This is sent as a foreground
2355     * broadcast, since it is part of a visible user interaction; be as quick
2356     * as possible when handling it.
2357     */
2358    public static final String ACTION_USER_BACKGROUND =
2359            "android.intent.action.USER_BACKGROUND";
2360
2361    /**
2362     * Broadcast sent to the system when a user is added. Carries an extra
2363     * EXTRA_USER_HANDLE that has the userHandle of the new user.  It is sent to
2364     * all running users.  You must hold
2365     * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
2366     * @hide
2367     */
2368    public static final String ACTION_USER_ADDED =
2369            "android.intent.action.USER_ADDED";
2370
2371    /**
2372     * Broadcast sent by the system when a user is started. Carries an extra
2373     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only sent to
2374     * registered receivers, not manifest receivers.  It is sent to the user
2375     * that has been started.  This is sent as a foreground
2376     * broadcast, since it is part of a visible user interaction; be as quick
2377     * as possible when handling it.
2378     * @hide
2379     */
2380    public static final String ACTION_USER_STARTED =
2381            "android.intent.action.USER_STARTED";
2382
2383    /**
2384     * Broadcast sent when a user is in the process of starting.  Carries an extra
2385     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only
2386     * sent to registered receivers, not manifest receivers.  It is sent to all
2387     * users (including the one that is being started).  You must hold
2388     * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive
2389     * this broadcast.  This is sent as a background broadcast, since
2390     * its result is not part of the primary UX flow; to safely keep track of
2391     * started/stopped state of a user you can use this in conjunction with
2392     * {@link #ACTION_USER_STOPPING}.  It is <b>not</b> generally safe to use with
2393     * other user state broadcasts since those are foreground broadcasts so can
2394     * execute in a different order.
2395     * @hide
2396     */
2397    public static final String ACTION_USER_STARTING =
2398            "android.intent.action.USER_STARTING";
2399
2400    /**
2401     * Broadcast sent when a user is going to be stopped.  Carries an extra
2402     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only
2403     * sent to registered receivers, not manifest receivers.  It is sent to all
2404     * users (including the one that is being stopped).  You must hold
2405     * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive
2406     * this broadcast.  The user will not stop until all receivers have
2407     * handled the broadcast.  This is sent as a background broadcast, since
2408     * its result is not part of the primary UX flow; to safely keep track of
2409     * started/stopped state of a user you can use this in conjunction with
2410     * {@link #ACTION_USER_STARTING}.  It is <b>not</b> generally safe to use with
2411     * other user state broadcasts since those are foreground broadcasts so can
2412     * execute in a different order.
2413     * @hide
2414     */
2415    public static final String ACTION_USER_STOPPING =
2416            "android.intent.action.USER_STOPPING";
2417
2418    /**
2419     * Broadcast sent to the system when a user is stopped. Carries an extra
2420     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is similar to
2421     * {@link #ACTION_PACKAGE_RESTARTED}, but for an entire user instead of a
2422     * specific package.  This is only sent to registered receivers, not manifest
2423     * receivers.  It is sent to all running users <em>except</em> the one that
2424     * has just been stopped (which is no longer running).
2425     * @hide
2426     */
2427    public static final String ACTION_USER_STOPPED =
2428            "android.intent.action.USER_STOPPED";
2429
2430    /**
2431     * Broadcast sent to the system when a user is removed. Carries an extra EXTRA_USER_HANDLE that has
2432     * the userHandle of the user.  It is sent to all running users except the
2433     * one that has been removed.  You must hold
2434     * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
2435     * @hide
2436     */
2437    public static final String ACTION_USER_REMOVED =
2438            "android.intent.action.USER_REMOVED";
2439
2440    /**
2441     * Broadcast sent to the system when the user switches. Carries an extra EXTRA_USER_HANDLE that has
2442     * the userHandle of the user to become the current one. This is only sent to
2443     * registered receivers, not manifest receivers.  It is sent to all running users.
2444     * You must hold
2445     * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
2446     * @hide
2447     */
2448    public static final String ACTION_USER_SWITCHED =
2449            "android.intent.action.USER_SWITCHED";
2450
2451    /**
2452     * Broadcast sent to the system when a user's information changes. Carries an extra
2453     * {@link #EXTRA_USER_HANDLE} to indicate which user's information changed.
2454     * This is only sent to registered receivers, not manifest receivers. It is sent to the user
2455     * whose information has changed.
2456     * @hide
2457     */
2458    public static final String ACTION_USER_INFO_CHANGED =
2459            "android.intent.action.USER_INFO_CHANGED";
2460
2461    /**
2462     * Sent when the user taps on the clock widget in the system's "quick settings" area.
2463     */
2464    public static final String ACTION_QUICK_CLOCK =
2465            "android.intent.action.QUICK_CLOCK";
2466
2467    // ---------------------------------------------------------------------
2468    // ---------------------------------------------------------------------
2469    // Standard intent categories (see addCategory()).
2470
2471    /**
2472     * Set if the activity should be an option for the default action
2473     * (center press) to perform on a piece of data.  Setting this will
2474     * hide from the user any activities without it set when performing an
2475     * action on some data.  Note that this is normal -not- set in the
2476     * Intent when initiating an action -- it is for use in intent filters
2477     * specified in packages.
2478     */
2479    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2480    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
2481    /**
2482     * Activities that can be safely invoked from a browser must support this
2483     * category.  For example, if the user is viewing a web page or an e-mail
2484     * and clicks on a link in the text, the Intent generated execute that
2485     * link will require the BROWSABLE category, so that only activities
2486     * supporting this category will be considered as possible actions.  By
2487     * supporting this category, you are promising that there is nothing
2488     * damaging (without user intervention) that can happen by invoking any
2489     * matching Intent.
2490     */
2491    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2492    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
2493    /**
2494     * Set if the activity should be considered as an alternative action to
2495     * the data the user is currently viewing.  See also
2496     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
2497     * applies to the selection in a list of items.
2498     *
2499     * <p>Supporting this category means that you would like your activity to be
2500     * displayed in the set of alternative things the user can do, usually as
2501     * part of the current activity's options menu.  You will usually want to
2502     * include a specific label in the &lt;intent-filter&gt; of this action
2503     * describing to the user what it does.
2504     *
2505     * <p>The action of IntentFilter with this category is important in that it
2506     * describes the specific action the target will perform.  This generally
2507     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
2508     * a specific name such as "com.android.camera.action.CROP.  Only one
2509     * alternative of any particular action will be shown to the user, so using
2510     * a specific action like this makes sure that your alternative will be
2511     * displayed while also allowing other applications to provide their own
2512     * overrides of that particular action.
2513     */
2514    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2515    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
2516    /**
2517     * Set if the activity should be considered as an alternative selection
2518     * action to the data the user has currently selected.  This is like
2519     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
2520     * of items from which the user can select, giving them alternatives to the
2521     * default action that will be performed on it.
2522     */
2523    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2524    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
2525    /**
2526     * Intended to be used as a tab inside of a containing TabActivity.
2527     */
2528    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2529    public static final String CATEGORY_TAB = "android.intent.category.TAB";
2530    /**
2531     * Should be displayed in the top-level launcher.
2532     */
2533    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2534    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
2535    /**
2536     * Provides information about the package it is in; typically used if
2537     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
2538     * a front-door to the user without having to be shown in the all apps list.
2539     */
2540    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2541    public static final String CATEGORY_INFO = "android.intent.category.INFO";
2542    /**
2543     * This is the home activity, that is the first activity that is displayed
2544     * when the device boots.
2545     */
2546    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2547    public static final String CATEGORY_HOME = "android.intent.category.HOME";
2548    /**
2549     * This activity is a preference panel.
2550     */
2551    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2552    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
2553    /**
2554     * This activity is a development preference panel.
2555     */
2556    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2557    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
2558    /**
2559     * Capable of running inside a parent activity container.
2560     */
2561    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2562    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
2563    /**
2564     * This activity allows the user to browse and download new applications.
2565     */
2566    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2567    public static final String CATEGORY_APP_MARKET = "android.intent.category.APP_MARKET";
2568    /**
2569     * This activity may be exercised by the monkey or other automated test tools.
2570     */
2571    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2572    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
2573    /**
2574     * To be used as a test (not part of the normal user experience).
2575     */
2576    public static final String CATEGORY_TEST = "android.intent.category.TEST";
2577    /**
2578     * To be used as a unit test (run through the Test Harness).
2579     */
2580    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
2581    /**
2582     * To be used as a sample code example (not part of the normal user
2583     * experience).
2584     */
2585    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
2586    /**
2587     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
2588     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
2589     * when queried, though it is allowable for those columns to be blank.
2590     */
2591    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2592    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
2593
2594    /**
2595     * To be used as code under test for framework instrumentation tests.
2596     */
2597    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
2598            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
2599    /**
2600     * An activity to run when device is inserted into a car dock.
2601     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2602     * information, see {@link android.app.UiModeManager}.
2603     */
2604    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2605    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
2606    /**
2607     * An activity to run when device is inserted into a car dock.
2608     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2609     * information, see {@link android.app.UiModeManager}.
2610     */
2611    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2612    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
2613    /**
2614     * An activity to run when device is inserted into a analog (low end) dock.
2615     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2616     * information, see {@link android.app.UiModeManager}.
2617     */
2618    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2619    public static final String CATEGORY_LE_DESK_DOCK = "android.intent.category.LE_DESK_DOCK";
2620
2621    /**
2622     * An activity to run when device is inserted into a digital (high end) dock.
2623     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2624     * information, see {@link android.app.UiModeManager}.
2625     */
2626    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2627    public static final String CATEGORY_HE_DESK_DOCK = "android.intent.category.HE_DESK_DOCK";
2628
2629    /**
2630     * Used to indicate that the activity can be used in a car environment.
2631     */
2632    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2633    public static final String CATEGORY_CAR_MODE = "android.intent.category.CAR_MODE";
2634
2635    // ---------------------------------------------------------------------
2636    // ---------------------------------------------------------------------
2637    // Application launch intent categories (see addCategory()).
2638
2639    /**
2640     * Used with {@link #ACTION_MAIN} to launch the browser application.
2641     * The activity should be able to browse the Internet.
2642     * <p>NOTE: This should not be used as the primary key of an Intent,
2643     * since it will not result in the app launching with the correct
2644     * action and category.  Instead, use this with
2645     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2646     * Intent with this category in the selector.</p>
2647     */
2648    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2649    public static final String CATEGORY_APP_BROWSER = "android.intent.category.APP_BROWSER";
2650
2651    /**
2652     * Used with {@link #ACTION_MAIN} to launch the calculator application.
2653     * The activity should be able to perform standard arithmetic operations.
2654     * <p>NOTE: This should not be used as the primary key of an Intent,
2655     * since it will not result in the app launching with the correct
2656     * action and category.  Instead, use this with
2657     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2658     * Intent with this category in the selector.</p>
2659     */
2660    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2661    public static final String CATEGORY_APP_CALCULATOR = "android.intent.category.APP_CALCULATOR";
2662
2663    /**
2664     * Used with {@link #ACTION_MAIN} to launch the calendar application.
2665     * The activity should be able to view and manipulate calendar entries.
2666     * <p>NOTE: This should not be used as the primary key of an Intent,
2667     * since it will not result in the app launching with the correct
2668     * action and category.  Instead, use this with
2669     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2670     * Intent with this category in the selector.</p>
2671     */
2672    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2673    public static final String CATEGORY_APP_CALENDAR = "android.intent.category.APP_CALENDAR";
2674
2675    /**
2676     * Used with {@link #ACTION_MAIN} to launch the contacts application.
2677     * The activity should be able to view and manipulate address book entries.
2678     * <p>NOTE: This should not be used as the primary key of an Intent,
2679     * since it will not result in the app launching with the correct
2680     * action and category.  Instead, use this with
2681     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2682     * Intent with this category in the selector.</p>
2683     */
2684    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2685    public static final String CATEGORY_APP_CONTACTS = "android.intent.category.APP_CONTACTS";
2686
2687    /**
2688     * Used with {@link #ACTION_MAIN} to launch the email application.
2689     * The activity should be able to send and receive email.
2690     * <p>NOTE: This should not be used as the primary key of an Intent,
2691     * since it will not result in the app launching with the correct
2692     * action and category.  Instead, use this with
2693     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2694     * Intent with this category in the selector.</p>
2695     */
2696    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2697    public static final String CATEGORY_APP_EMAIL = "android.intent.category.APP_EMAIL";
2698
2699    /**
2700     * Used with {@link #ACTION_MAIN} to launch the gallery application.
2701     * The activity should be able to view and manipulate image and video files
2702     * stored on the device.
2703     * <p>NOTE: This should not be used as the primary key of an Intent,
2704     * since it will not result in the app launching with the correct
2705     * action and category.  Instead, use this with
2706     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2707     * Intent with this category in the selector.</p>
2708     */
2709    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2710    public static final String CATEGORY_APP_GALLERY = "android.intent.category.APP_GALLERY";
2711
2712    /**
2713     * Used with {@link #ACTION_MAIN} to launch the maps application.
2714     * The activity should be able to show the user's current location and surroundings.
2715     * <p>NOTE: This should not be used as the primary key of an Intent,
2716     * since it will not result in the app launching with the correct
2717     * action and category.  Instead, use this with
2718     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2719     * Intent with this category in the selector.</p>
2720     */
2721    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2722    public static final String CATEGORY_APP_MAPS = "android.intent.category.APP_MAPS";
2723
2724    /**
2725     * Used with {@link #ACTION_MAIN} to launch the messaging application.
2726     * The activity should be able to send and receive text messages.
2727     * <p>NOTE: This should not be used as the primary key of an Intent,
2728     * since it will not result in the app launching with the correct
2729     * action and category.  Instead, use this with
2730     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2731     * Intent with this category in the selector.</p>
2732     */
2733    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2734    public static final String CATEGORY_APP_MESSAGING = "android.intent.category.APP_MESSAGING";
2735
2736    /**
2737     * Used with {@link #ACTION_MAIN} to launch the music application.
2738     * The activity should be able to play, browse, or manipulate music files
2739     * stored on the device.
2740     * <p>NOTE: This should not be used as the primary key of an Intent,
2741     * since it will not result in the app launching with the correct
2742     * action and category.  Instead, use this with
2743     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2744     * Intent with this category in the selector.</p>
2745     */
2746    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2747    public static final String CATEGORY_APP_MUSIC = "android.intent.category.APP_MUSIC";
2748
2749    // ---------------------------------------------------------------------
2750    // ---------------------------------------------------------------------
2751    // Standard extra data keys.
2752
2753    /**
2754     * The initial data to place in a newly created record.  Use with
2755     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
2756     * fields as would be given to the underlying ContentProvider.insert()
2757     * call.
2758     */
2759    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
2760
2761    /**
2762     * A constant CharSequence that is associated with the Intent, used with
2763     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
2764     * this may be a styled CharSequence, so you must use
2765     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
2766     * retrieve it.
2767     */
2768    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
2769
2770    /**
2771     * A constant String that is associated with the Intent, used with
2772     * {@link #ACTION_SEND} to supply an alternative to {@link #EXTRA_TEXT}
2773     * as HTML formatted text.  Note that you <em>must</em> also supply
2774     * {@link #EXTRA_TEXT}.
2775     */
2776    public static final String EXTRA_HTML_TEXT = "android.intent.extra.HTML_TEXT";
2777
2778    /**
2779     * A content: URI holding a stream of data associated with the Intent,
2780     * used with {@link #ACTION_SEND} to supply the data being sent.
2781     */
2782    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
2783
2784    /**
2785     * A String[] holding e-mail addresses that should be delivered to.
2786     */
2787    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
2788
2789    /**
2790     * A String[] holding e-mail addresses that should be carbon copied.
2791     */
2792    public static final String EXTRA_CC       = "android.intent.extra.CC";
2793
2794    /**
2795     * A String[] holding e-mail addresses that should be blind carbon copied.
2796     */
2797    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
2798
2799    /**
2800     * A constant string holding the desired subject line of a message.
2801     */
2802    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
2803
2804    /**
2805     * An Intent describing the choices you would like shown with
2806     * {@link #ACTION_PICK_ACTIVITY}.
2807     */
2808    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
2809
2810    /**
2811     * A CharSequence dialog title to provide to the user when used with a
2812     * {@link #ACTION_CHOOSER}.
2813     */
2814    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
2815
2816    /**
2817     * A Parcelable[] of {@link Intent} or
2818     * {@link android.content.pm.LabeledIntent} objects as set with
2819     * {@link #putExtra(String, Parcelable[])} of additional activities to place
2820     * a the front of the list of choices, when shown to the user with a
2821     * {@link #ACTION_CHOOSER}.
2822     */
2823    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
2824
2825    /**
2826     * A {@link android.view.KeyEvent} object containing the event that
2827     * triggered the creation of the Intent it is in.
2828     */
2829    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
2830
2831    /**
2832     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
2833     * before shutting down.
2834     *
2835     * {@hide}
2836     */
2837    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
2838
2839    /**
2840     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2841     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
2842     * of restarting the application.
2843     */
2844    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
2845
2846    /**
2847     * A String holding the phone number originally entered in
2848     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
2849     * number to call in a {@link android.content.Intent#ACTION_CALL}.
2850     */
2851    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
2852
2853    /**
2854     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
2855     * intents to supply the uid the package had been assigned.  Also an optional
2856     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2857     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2858     * purpose.
2859     */
2860    public static final String EXTRA_UID = "android.intent.extra.UID";
2861
2862    /**
2863     * @hide String array of package names.
2864     */
2865    public static final String EXTRA_PACKAGES = "android.intent.extra.PACKAGES";
2866
2867    /**
2868     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2869     * intents to indicate whether this represents a full uninstall (removing
2870     * both the code and its data) or a partial uninstall (leaving its data,
2871     * implying that this is an update).
2872     */
2873    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2874
2875    /**
2876     * @hide
2877     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2878     * intents to indicate that at this point the package has been removed for
2879     * all users on the device.
2880     */
2881    public static final String EXTRA_REMOVED_FOR_ALL_USERS
2882            = "android.intent.extra.REMOVED_FOR_ALL_USERS";
2883
2884    /**
2885     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2886     * intents to indicate that this is a replacement of the package, so this
2887     * broadcast will immediately be followed by an add broadcast for a
2888     * different version of the same package.
2889     */
2890    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2891
2892    /**
2893     * Used as an int extra field in {@link android.app.AlarmManager} intents
2894     * to tell the application being invoked how many pending alarms are being
2895     * delievered with the intent.  For one-shot alarms this will always be 1.
2896     * For recurring alarms, this might be greater than 1 if the device was
2897     * asleep or powered off at the time an earlier alarm would have been
2898     * delivered.
2899     */
2900    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2901
2902    /**
2903     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2904     * intents to request the dock state.  Possible values are
2905     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2906     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2907     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}, or
2908     * {@link android.content.Intent#EXTRA_DOCK_STATE_LE_DESK}, or
2909     * {@link android.content.Intent#EXTRA_DOCK_STATE_HE_DESK}.
2910     */
2911    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2912
2913    /**
2914     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2915     * to represent that the phone is not in any dock.
2916     */
2917    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2918
2919    /**
2920     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2921     * to represent that the phone is in a desk dock.
2922     */
2923    public static final int EXTRA_DOCK_STATE_DESK = 1;
2924
2925    /**
2926     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2927     * to represent that the phone is in a car dock.
2928     */
2929    public static final int EXTRA_DOCK_STATE_CAR = 2;
2930
2931    /**
2932     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2933     * to represent that the phone is in a analog (low end) dock.
2934     */
2935    public static final int EXTRA_DOCK_STATE_LE_DESK = 3;
2936
2937    /**
2938     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2939     * to represent that the phone is in a digital (high end) dock.
2940     */
2941    public static final int EXTRA_DOCK_STATE_HE_DESK = 4;
2942
2943    /**
2944     * Boolean that can be supplied as meta-data with a dock activity, to
2945     * indicate that the dock should take over the home key when it is active.
2946     */
2947    public static final String METADATA_DOCK_HOME = "android.dock_home";
2948
2949    /**
2950     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2951     * the bug report.
2952     */
2953    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2954
2955    /**
2956     * Used in the extra field in the remote intent. It's astring token passed with the
2957     * remote intent.
2958     */
2959    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2960            "android.intent.extra.remote_intent_token";
2961
2962    /**
2963     * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
2964     * will contain only the first name in the list.
2965     */
2966    @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
2967            "android.intent.extra.changed_component_name";
2968
2969    /**
2970     * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED},
2971     * and contains a string array of all of the components that have changed.
2972     */
2973    public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
2974            "android.intent.extra.changed_component_name_list";
2975
2976    /**
2977     * This field is part of
2978     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
2979     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
2980     * and contains a string array of all of the components that have changed.
2981     */
2982    public static final String EXTRA_CHANGED_PACKAGE_LIST =
2983            "android.intent.extra.changed_package_list";
2984
2985    /**
2986     * This field is part of
2987     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
2988     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
2989     * and contains an integer array of uids of all of the components
2990     * that have changed.
2991     */
2992    public static final String EXTRA_CHANGED_UID_LIST =
2993            "android.intent.extra.changed_uid_list";
2994
2995    /**
2996     * @hide
2997     * Magic extra system code can use when binding, to give a label for
2998     * who it is that has bound to a service.  This is an integer giving
2999     * a framework string resource that can be displayed to the user.
3000     */
3001    public static final String EXTRA_CLIENT_LABEL =
3002            "android.intent.extra.client_label";
3003
3004    /**
3005     * @hide
3006     * Magic extra system code can use when binding, to give a PendingIntent object
3007     * that can be launched for the user to disable the system's use of this
3008     * service.
3009     */
3010    public static final String EXTRA_CLIENT_INTENT =
3011            "android.intent.extra.client_intent";
3012
3013    /**
3014     * Used to indicate that a {@link #ACTION_GET_CONTENT} intent should only return
3015     * data that is on the local device.  This is a boolean extra; the default
3016     * is false.  If true, an implementation of ACTION_GET_CONTENT should only allow
3017     * the user to select media that is already on the device, not requiring it
3018     * be downloaded from a remote service when opened.  Another way to look
3019     * at it is that such content should generally have a "_data" column to the
3020     * path of the content on local external storage.
3021     */
3022    public static final String EXTRA_LOCAL_ONLY =
3023        "android.intent.extra.LOCAL_ONLY";
3024
3025    /**
3026     * The userHandle carried with broadcast intents related to addition, removal and switching of users
3027     * - {@link #ACTION_USER_ADDED}, {@link #ACTION_USER_REMOVED} and {@link #ACTION_USER_SWITCHED}.
3028     * @hide
3029     */
3030    public static final String EXTRA_USER_HANDLE =
3031            "android.intent.extra.user_handle";
3032
3033    // ---------------------------------------------------------------------
3034    // ---------------------------------------------------------------------
3035    // Intent flags (see mFlags variable).
3036
3037    /**
3038     * If set, the recipient of this Intent will be granted permission to
3039     * perform read operations on the Uri in the Intent's data and any URIs
3040     * specified in its ClipData.  When applying to an Intent's ClipData,
3041     * all URIs as well as recursive traversals through data or other ClipData
3042     * in Intent items will be granted; only the grant flags of the top-level
3043     * Intent are used.
3044     */
3045    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
3046    /**
3047     * If set, the recipient of this Intent will be granted permission to
3048     * perform write operations on the Uri in the Intent's data and any URIs
3049     * specified in its ClipData.  When applying to an Intent's ClipData,
3050     * all URIs as well as recursive traversals through data or other ClipData
3051     * in Intent items will be granted; only the grant flags of the top-level
3052     * Intent are used.
3053     */
3054    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
3055    /**
3056     * Can be set by the caller to indicate that this Intent is coming from
3057     * a background operation, not from direct user interaction.
3058     */
3059    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
3060    /**
3061     * A flag you can enable for debugging: when set, log messages will be
3062     * printed during the resolution of this intent to show you what has
3063     * been found to create the final resolved list.
3064     */
3065    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
3066    /**
3067     * If set, this intent will not match any components in packages that
3068     * are currently stopped.  If this is not set, then the default behavior
3069     * is to include such applications in the result.
3070     */
3071    public static final int FLAG_EXCLUDE_STOPPED_PACKAGES = 0x00000010;
3072    /**
3073     * If set, this intent will always match any components in packages that
3074     * are currently stopped.  This is the default behavior when
3075     * {@link #FLAG_EXCLUDE_STOPPED_PACKAGES} is not set.  If both of these
3076     * flags are set, this one wins (it allows overriding of exclude for
3077     * places where the framework may automatically set the exclude flag).
3078     */
3079    public static final int FLAG_INCLUDE_STOPPED_PACKAGES = 0x00000020;
3080
3081    /**
3082     * If set, the new activity is not kept in the history stack.  As soon as
3083     * the user navigates away from it, the activity is finished.  This may also
3084     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
3085     * noHistory} attribute.
3086     */
3087    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
3088    /**
3089     * If set, the activity will not be launched if it is already running
3090     * at the top of the history stack.
3091     */
3092    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
3093    /**
3094     * If set, this activity will become the start of a new task on this
3095     * history stack.  A task (from the activity that started it to the
3096     * next task activity) defines an atomic group of activities that the
3097     * user can move to.  Tasks can be moved to the foreground and background;
3098     * all of the activities inside of a particular task always remain in
3099     * the same order.  See
3100     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
3101     * Stack</a> for more information about tasks.
3102     *
3103     * <p>This flag is generally used by activities that want
3104     * to present a "launcher" style behavior: they give the user a list of
3105     * separate things that can be done, which otherwise run completely
3106     * independently of the activity launching them.
3107     *
3108     * <p>When using this flag, if a task is already running for the activity
3109     * you are now starting, then a new activity will not be started; instead,
3110     * the current task will simply be brought to the front of the screen with
3111     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
3112     * to disable this behavior.
3113     *
3114     * <p>This flag can not be used when the caller is requesting a result from
3115     * the activity being launched.
3116     */
3117    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
3118    /**
3119     * <strong>Do not use this flag unless you are implementing your own
3120     * top-level application launcher.</strong>  Used in conjunction with
3121     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
3122     * behavior of bringing an existing task to the foreground.  When set,
3123     * a new task is <em>always</em> started to host the Activity for the
3124     * Intent, regardless of whether there is already an existing task running
3125     * the same thing.
3126     *
3127     * <p><strong>Because the default system does not include graphical task management,
3128     * you should not use this flag unless you provide some way for a user to
3129     * return back to the tasks you have launched.</strong>
3130     *
3131     * <p>This flag is ignored if
3132     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
3133     *
3134     * <p>See
3135     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
3136     * Stack</a> for more information about tasks.
3137     */
3138    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
3139    /**
3140     * If set, and the activity being launched is already running in the
3141     * current task, then instead of launching a new instance of that activity,
3142     * all of the other activities on top of it will be closed and this Intent
3143     * will be delivered to the (now on top) old activity as a new Intent.
3144     *
3145     * <p>For example, consider a task consisting of the activities: A, B, C, D.
3146     * If D calls startActivity() with an Intent that resolves to the component
3147     * of activity B, then C and D will be finished and B receive the given
3148     * Intent, resulting in the stack now being: A, B.
3149     *
3150     * <p>The currently running instance of activity B in the above example will
3151     * either receive the new intent you are starting here in its
3152     * onNewIntent() method, or be itself finished and restarted with the
3153     * new intent.  If it has declared its launch mode to be "multiple" (the
3154     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
3155     * the same intent, then it will be finished and re-created; for all other
3156     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
3157     * Intent will be delivered to the current instance's onNewIntent().
3158     *
3159     * <p>This launch mode can also be used to good effect in conjunction with
3160     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
3161     * of a task, it will bring any currently running instance of that task
3162     * to the foreground, and then clear it to its root state.  This is
3163     * especially useful, for example, when launching an activity from the
3164     * notification manager.
3165     *
3166     * <p>See
3167     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
3168     * Stack</a> for more information about tasks.
3169     */
3170    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
3171    /**
3172     * If set and this intent is being used to launch a new activity from an
3173     * existing one, then the reply target of the existing activity will be
3174     * transfered to the new activity.  This way the new activity can call
3175     * {@link android.app.Activity#setResult} and have that result sent back to
3176     * the reply target of the original activity.
3177     */
3178    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
3179    /**
3180     * If set and this intent is being used to launch a new activity from an
3181     * existing one, the current activity will not be counted as the top
3182     * activity for deciding whether the new intent should be delivered to
3183     * the top instead of starting a new one.  The previous activity will
3184     * be used as the top, with the assumption being that the current activity
3185     * will finish itself immediately.
3186     */
3187    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
3188    /**
3189     * If set, the new activity is not kept in the list of recently launched
3190     * activities.
3191     */
3192    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
3193    /**
3194     * This flag is not normally set by application code, but set for you by
3195     * the system as described in the
3196     * {@link android.R.styleable#AndroidManifestActivity_launchMode
3197     * launchMode} documentation for the singleTask mode.
3198     */
3199    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
3200    /**
3201     * If set, and this activity is either being started in a new task or
3202     * bringing to the top an existing task, then it will be launched as
3203     * the front door of the task.  This will result in the application of
3204     * any affinities needed to have that task in the proper state (either
3205     * moving activities to or from it), or simply resetting that task to
3206     * its initial state if needed.
3207     */
3208    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
3209    /**
3210     * This flag is not normally set by application code, but set for you by
3211     * the system if this activity is being launched from history
3212     * (longpress home key).
3213     */
3214    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
3215    /**
3216     * If set, this marks a point in the task's activity stack that should
3217     * be cleared when the task is reset.  That is, the next time the task
3218     * is brought to the foreground with
3219     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
3220     * the user re-launching it from home), this activity and all on top of
3221     * it will be finished so that the user does not return to them, but
3222     * instead returns to whatever activity preceeded it.
3223     *
3224     * <p>This is useful for cases where you have a logical break in your
3225     * application.  For example, an e-mail application may have a command
3226     * to view an attachment, which launches an image view activity to
3227     * display it.  This activity should be part of the e-mail application's
3228     * task, since it is a part of the task the user is involved in.  However,
3229     * if the user leaves that task, and later selects the e-mail app from
3230     * home, we may like them to return to the conversation they were
3231     * viewing, not the picture attachment, since that is confusing.  By
3232     * setting this flag when launching the image viewer, that viewer and
3233     * any activities it starts will be removed the next time the user returns
3234     * to mail.
3235     */
3236    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
3237    /**
3238     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
3239     * callback from occurring on the current frontmost activity before it is
3240     * paused as the newly-started activity is brought to the front.
3241     *
3242     * <p>Typically, an activity can rely on that callback to indicate that an
3243     * explicit user action has caused their activity to be moved out of the
3244     * foreground. The callback marks an appropriate point in the activity's
3245     * lifecycle for it to dismiss any notifications that it intends to display
3246     * "until the user has seen them," such as a blinking LED.
3247     *
3248     * <p>If an activity is ever started via any non-user-driven events such as
3249     * phone-call receipt or an alarm handler, this flag should be passed to {@link
3250     * Context#startActivity Context.startActivity}, ensuring that the pausing
3251     * activity does not think the user has acknowledged its notification.
3252     */
3253    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
3254    /**
3255     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3256     * this flag will cause the launched activity to be brought to the front of its
3257     * task's history stack if it is already running.
3258     *
3259     * <p>For example, consider a task consisting of four activities: A, B, C, D.
3260     * If D calls startActivity() with an Intent that resolves to the component
3261     * of activity B, then B will be brought to the front of the history stack,
3262     * with this resulting order:  A, C, D, B.
3263     *
3264     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
3265     * specified.
3266     */
3267    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
3268    /**
3269     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3270     * this flag will prevent the system from applying an activity transition
3271     * animation to go to the next activity state.  This doesn't mean an
3272     * animation will never run -- if another activity change happens that doesn't
3273     * specify this flag before the activity started here is displayed, then
3274     * that transition will be used.  This flag can be put to good use
3275     * when you are going to do a series of activity operations but the
3276     * animation seen by the user shouldn't be driven by the first activity
3277     * change but rather a later one.
3278     */
3279    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
3280    /**
3281     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3282     * this flag will cause any existing task that would be associated with the
3283     * activity to be cleared before the activity is started.  That is, the activity
3284     * becomes the new root of an otherwise empty task, and any old activities
3285     * are finished.  This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
3286     */
3287    public static final int FLAG_ACTIVITY_CLEAR_TASK = 0X00008000;
3288    /**
3289     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3290     * this flag will cause a newly launching task to be placed on top of the current
3291     * home activity task (if there is one).  That is, pressing back from the task
3292     * will always return the user to home even if that was not the last activity they
3293     * saw.   This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
3294     */
3295    public static final int FLAG_ACTIVITY_TASK_ON_HOME = 0X00004000;
3296    /**
3297     * If set, when sending a broadcast only registered receivers will be
3298     * called -- no BroadcastReceiver components will be launched.
3299     */
3300    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
3301    /**
3302     * If set, when sending a broadcast the new broadcast will replace
3303     * any existing pending broadcast that matches it.  Matching is defined
3304     * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning
3305     * true for the intents of the two broadcasts.  When a match is found,
3306     * the new broadcast (and receivers associated with it) will replace the
3307     * existing one in the pending broadcast list, remaining at the same
3308     * position in the list.
3309     *
3310     * <p>This flag is most typically used with sticky broadcasts, which
3311     * only care about delivering the most recent values of the broadcast
3312     * to their receivers.
3313     */
3314    public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
3315    /**
3316     * If set, when sending a broadcast the recipient is allowed to run at
3317     * foreground priority, with a shorter timeout interval.  During normal
3318     * broadcasts the receivers are not automatically hoisted out of the
3319     * background priority class.
3320     */
3321    public static final int FLAG_RECEIVER_FOREGROUND = 0x10000000;
3322    /**
3323     * If set, when sending a broadcast <i>before boot has completed</i> only
3324     * registered receivers will be called -- no BroadcastReceiver components
3325     * will be launched.  Sticky intent state will be recorded properly even
3326     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
3327     * is specified in the broadcast intent, this flag is unnecessary.
3328     *
3329     * <p>This flag is only for use by system sevices as a convenience to
3330     * avoid having to implement a more complex mechanism around detection
3331     * of boot completion.
3332     *
3333     * @hide
3334     */
3335    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x08000000;
3336    /**
3337     * Set when this broadcast is for a boot upgrade, a special mode that
3338     * allows the broadcast to be sent before the system is ready and launches
3339     * the app process with no providers running in it.
3340     * @hide
3341     */
3342    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x04000000;
3343
3344    /**
3345     * @hide Flags that can't be changed with PendingIntent.
3346     */
3347    public static final int IMMUTABLE_FLAGS =
3348            FLAG_GRANT_READ_URI_PERMISSION
3349            | FLAG_GRANT_WRITE_URI_PERMISSION;
3350
3351    // ---------------------------------------------------------------------
3352    // ---------------------------------------------------------------------
3353    // toUri() and parseUri() options.
3354
3355    /**
3356     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
3357     * always has the "intent:" scheme.  This syntax can be used when you want
3358     * to later disambiguate between URIs that are intended to describe an
3359     * Intent vs. all others that should be treated as raw URIs.  When used
3360     * with {@link #parseUri}, any other scheme will result in a generic
3361     * VIEW action for that raw URI.
3362     */
3363    public static final int URI_INTENT_SCHEME = 1<<0;
3364
3365    // ---------------------------------------------------------------------
3366
3367    private String mAction;
3368    private Uri mData;
3369    private String mType;
3370    private String mPackage;
3371    private ComponentName mComponent;
3372    private int mFlags;
3373    private HashSet<String> mCategories;
3374    private Bundle mExtras;
3375    private Rect mSourceBounds;
3376    private Intent mSelector;
3377    private ClipData mClipData;
3378
3379    // ---------------------------------------------------------------------
3380
3381    /**
3382     * Create an empty intent.
3383     */
3384    public Intent() {
3385    }
3386
3387    /**
3388     * Copy constructor.
3389     */
3390    public Intent(Intent o) {
3391        this.mAction = o.mAction;
3392        this.mData = o.mData;
3393        this.mType = o.mType;
3394        this.mPackage = o.mPackage;
3395        this.mComponent = o.mComponent;
3396        this.mFlags = o.mFlags;
3397        if (o.mCategories != null) {
3398            this.mCategories = new HashSet<String>(o.mCategories);
3399        }
3400        if (o.mExtras != null) {
3401            this.mExtras = new Bundle(o.mExtras);
3402        }
3403        if (o.mSourceBounds != null) {
3404            this.mSourceBounds = new Rect(o.mSourceBounds);
3405        }
3406        if (o.mSelector != null) {
3407            this.mSelector = new Intent(o.mSelector);
3408        }
3409        if (o.mClipData != null) {
3410            this.mClipData = new ClipData(o.mClipData);
3411        }
3412    }
3413
3414    @Override
3415    public Object clone() {
3416        return new Intent(this);
3417    }
3418
3419    private Intent(Intent o, boolean all) {
3420        this.mAction = o.mAction;
3421        this.mData = o.mData;
3422        this.mType = o.mType;
3423        this.mPackage = o.mPackage;
3424        this.mComponent = o.mComponent;
3425        if (o.mCategories != null) {
3426            this.mCategories = new HashSet<String>(o.mCategories);
3427        }
3428    }
3429
3430    /**
3431     * Make a clone of only the parts of the Intent that are relevant for
3432     * filter matching: the action, data, type, component, and categories.
3433     */
3434    public Intent cloneFilter() {
3435        return new Intent(this, false);
3436    }
3437
3438    /**
3439     * Create an intent with a given action.  All other fields (data, type,
3440     * class) are null.  Note that the action <em>must</em> be in a
3441     * namespace because Intents are used globally in the system -- for
3442     * example the system VIEW action is android.intent.action.VIEW; an
3443     * application's custom action would be something like
3444     * com.google.app.myapp.CUSTOM_ACTION.
3445     *
3446     * @param action The Intent action, such as ACTION_VIEW.
3447     */
3448    public Intent(String action) {
3449        setAction(action);
3450    }
3451
3452    /**
3453     * Create an intent with a given action and for a given data url.  Note
3454     * that the action <em>must</em> be in a namespace because Intents are
3455     * used globally in the system -- for example the system VIEW action is
3456     * android.intent.action.VIEW; an application's custom action would be
3457     * something like com.google.app.myapp.CUSTOM_ACTION.
3458     *
3459     * <p><em>Note: scheme and host name matching in the Android framework is
3460     * case-sensitive, unlike the formal RFC.  As a result,
3461     * you should always ensure that you write your Uri with these elements
3462     * using lower case letters, and normalize any Uris you receive from
3463     * outside of Android to ensure the scheme and host is lower case.</em></p>
3464     *
3465     * @param action The Intent action, such as ACTION_VIEW.
3466     * @param uri The Intent data URI.
3467     */
3468    public Intent(String action, Uri uri) {
3469        setAction(action);
3470        mData = uri;
3471    }
3472
3473    /**
3474     * Create an intent for a specific component.  All other fields (action, data,
3475     * type, class) are null, though they can be modified later with explicit
3476     * calls.  This provides a convenient way to create an intent that is
3477     * intended to execute a hard-coded class name, rather than relying on the
3478     * system to find an appropriate class for you; see {@link #setComponent}
3479     * for more information on the repercussions of this.
3480     *
3481     * @param packageContext A Context of the application package implementing
3482     * this class.
3483     * @param cls The component class that is to be used for the intent.
3484     *
3485     * @see #setClass
3486     * @see #setComponent
3487     * @see #Intent(String, android.net.Uri , Context, Class)
3488     */
3489    public Intent(Context packageContext, Class<?> cls) {
3490        mComponent = new ComponentName(packageContext, cls);
3491    }
3492
3493    /**
3494     * Create an intent for a specific component with a specified action and data.
3495     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
3496     * construct the Intent and then calling {@link #setClass} to set its
3497     * class.
3498     *
3499     * <p><em>Note: scheme and host name matching in the Android framework is
3500     * case-sensitive, unlike the formal RFC.  As a result,
3501     * you should always ensure that you write your Uri with these elements
3502     * using lower case letters, and normalize any Uris you receive from
3503     * outside of Android to ensure the scheme and host is lower case.</em></p>
3504     *
3505     * @param action The Intent action, such as ACTION_VIEW.
3506     * @param uri The Intent data URI.
3507     * @param packageContext A Context of the application package implementing
3508     * this class.
3509     * @param cls The component class that is to be used for the intent.
3510     *
3511     * @see #Intent(String, android.net.Uri)
3512     * @see #Intent(Context, Class)
3513     * @see #setClass
3514     * @see #setComponent
3515     */
3516    public Intent(String action, Uri uri,
3517            Context packageContext, Class<?> cls) {
3518        setAction(action);
3519        mData = uri;
3520        mComponent = new ComponentName(packageContext, cls);
3521    }
3522
3523    /**
3524     * Create an intent to launch the main (root) activity of a task.  This
3525     * is the Intent that is started when the application's is launched from
3526     * Home.  For anything else that wants to launch an application in the
3527     * same way, it is important that they use an Intent structured the same
3528     * way, and can use this function to ensure this is the case.
3529     *
3530     * <p>The returned Intent has the given Activity component as its explicit
3531     * component, {@link #ACTION_MAIN} as its action, and includes the
3532     * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
3533     * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
3534     * to do that through {@link #addFlags(int)} on the returned Intent.
3535     *
3536     * @param mainActivity The main activity component that this Intent will
3537     * launch.
3538     * @return Returns a newly created Intent that can be used to launch the
3539     * activity as a main application entry.
3540     *
3541     * @see #setClass
3542     * @see #setComponent
3543     */
3544    public static Intent makeMainActivity(ComponentName mainActivity) {
3545        Intent intent = new Intent(ACTION_MAIN);
3546        intent.setComponent(mainActivity);
3547        intent.addCategory(CATEGORY_LAUNCHER);
3548        return intent;
3549    }
3550
3551    /**
3552     * Make an Intent for the main activity of an application, without
3553     * specifying a specific activity to run but giving a selector to find
3554     * the activity.  This results in a final Intent that is structured
3555     * the same as when the application is launched from
3556     * Home.  For anything else that wants to launch an application in the
3557     * same way, it is important that they use an Intent structured the same
3558     * way, and can use this function to ensure this is the case.
3559     *
3560     * <p>The returned Intent has {@link #ACTION_MAIN} as its action, and includes the
3561     * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
3562     * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
3563     * to do that through {@link #addFlags(int)} on the returned Intent.
3564     *
3565     * @param selectorAction The action name of the Intent's selector.
3566     * @param selectorCategory The name of a category to add to the Intent's
3567     * selector.
3568     * @return Returns a newly created Intent that can be used to launch the
3569     * activity as a main application entry.
3570     *
3571     * @see #setSelector(Intent)
3572     */
3573    public static Intent makeMainSelectorActivity(String selectorAction,
3574            String selectorCategory) {
3575        Intent intent = new Intent(ACTION_MAIN);
3576        intent.addCategory(CATEGORY_LAUNCHER);
3577        Intent selector = new Intent();
3578        selector.setAction(selectorAction);
3579        selector.addCategory(selectorCategory);
3580        intent.setSelector(selector);
3581        return intent;
3582    }
3583
3584    /**
3585     * Make an Intent that can be used to re-launch an application's task
3586     * in its base state.  This is like {@link #makeMainActivity(ComponentName)},
3587     * but also sets the flags {@link #FLAG_ACTIVITY_NEW_TASK} and
3588     * {@link #FLAG_ACTIVITY_CLEAR_TASK}.
3589     *
3590     * @param mainActivity The activity component that is the root of the
3591     * task; this is the activity that has been published in the application's
3592     * manifest as the main launcher icon.
3593     *
3594     * @return Returns a newly created Intent that can be used to relaunch the
3595     * activity's task in its root state.
3596     */
3597    public static Intent makeRestartActivityTask(ComponentName mainActivity) {
3598        Intent intent = makeMainActivity(mainActivity);
3599        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
3600                | Intent.FLAG_ACTIVITY_CLEAR_TASK);
3601        return intent;
3602    }
3603
3604    /**
3605     * Call {@link #parseUri} with 0 flags.
3606     * @deprecated Use {@link #parseUri} instead.
3607     */
3608    @Deprecated
3609    public static Intent getIntent(String uri) throws URISyntaxException {
3610        return parseUri(uri, 0);
3611    }
3612
3613    /**
3614     * Create an intent from a URI.  This URI may encode the action,
3615     * category, and other intent fields, if it was returned by
3616     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
3617     * will be the entire URI and its action will be ACTION_VIEW.
3618     *
3619     * <p>The URI given here must not be relative -- that is, it must include
3620     * the scheme and full path.
3621     *
3622     * @param uri The URI to turn into an Intent.
3623     * @param flags Additional processing flags.  Either 0 or
3624     * {@link #URI_INTENT_SCHEME}.
3625     *
3626     * @return Intent The newly created Intent object.
3627     *
3628     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
3629     * it bad (as parsed by the Uri class) or the Intent data within the
3630     * URI is invalid.
3631     *
3632     * @see #toUri
3633     */
3634    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
3635        int i = 0;
3636        try {
3637            // Validate intent scheme for if requested.
3638            if ((flags&URI_INTENT_SCHEME) != 0) {
3639                if (!uri.startsWith("intent:")) {
3640                    Intent intent = new Intent(ACTION_VIEW);
3641                    try {
3642                        intent.setData(Uri.parse(uri));
3643                    } catch (IllegalArgumentException e) {
3644                        throw new URISyntaxException(uri, e.getMessage());
3645                    }
3646                    return intent;
3647                }
3648            }
3649
3650            // simple case
3651            i = uri.lastIndexOf("#");
3652            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
3653
3654            // old format Intent URI
3655            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
3656
3657            // new format
3658            Intent intent = new Intent(ACTION_VIEW);
3659            Intent baseIntent = intent;
3660
3661            // fetch data part, if present
3662            String data = i >= 0 ? uri.substring(0, i) : null;
3663            String scheme = null;
3664            i += "#Intent;".length();
3665
3666            // loop over contents of Intent, all name=value;
3667            while (!uri.startsWith("end", i)) {
3668                int eq = uri.indexOf('=', i);
3669                if (eq < 0) eq = i-1;
3670                int semi = uri.indexOf(';', i);
3671                String value = eq < semi ? Uri.decode(uri.substring(eq + 1, semi)) : "";
3672
3673                // action
3674                if (uri.startsWith("action=", i)) {
3675                    intent.setAction(value);
3676                }
3677
3678                // categories
3679                else if (uri.startsWith("category=", i)) {
3680                    intent.addCategory(value);
3681                }
3682
3683                // type
3684                else if (uri.startsWith("type=", i)) {
3685                    intent.mType = value;
3686                }
3687
3688                // launch flags
3689                else if (uri.startsWith("launchFlags=", i)) {
3690                    intent.mFlags = Integer.decode(value).intValue();
3691                }
3692
3693                // package
3694                else if (uri.startsWith("package=", i)) {
3695                    intent.mPackage = value;
3696                }
3697
3698                // component
3699                else if (uri.startsWith("component=", i)) {
3700                    intent.mComponent = ComponentName.unflattenFromString(value);
3701                }
3702
3703                // scheme
3704                else if (uri.startsWith("scheme=", i)) {
3705                    scheme = value;
3706                }
3707
3708                // source bounds
3709                else if (uri.startsWith("sourceBounds=", i)) {
3710                    intent.mSourceBounds = Rect.unflattenFromString(value);
3711                }
3712
3713                // selector
3714                else if (semi == (i+3) && uri.startsWith("SEL", i)) {
3715                    intent = new Intent();
3716                }
3717
3718                // extra
3719                else {
3720                    String key = Uri.decode(uri.substring(i + 2, eq));
3721                    // create Bundle if it doesn't already exist
3722                    if (intent.mExtras == null) intent.mExtras = new Bundle();
3723                    Bundle b = intent.mExtras;
3724                    // add EXTRA
3725                    if      (uri.startsWith("S.", i)) b.putString(key, value);
3726                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
3727                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
3728                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
3729                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
3730                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
3731                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
3732                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
3733                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
3734                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
3735                }
3736
3737                // move to the next item
3738                i = semi + 1;
3739            }
3740
3741            if (intent != baseIntent) {
3742                // The Intent had a selector; fix it up.
3743                baseIntent.setSelector(intent);
3744                intent = baseIntent;
3745            }
3746
3747            if (data != null) {
3748                if (data.startsWith("intent:")) {
3749                    data = data.substring(7);
3750                    if (scheme != null) {
3751                        data = scheme + ':' + data;
3752                    }
3753                }
3754
3755                if (data.length() > 0) {
3756                    try {
3757                        intent.mData = Uri.parse(data);
3758                    } catch (IllegalArgumentException e) {
3759                        throw new URISyntaxException(uri, e.getMessage());
3760                    }
3761                }
3762            }
3763
3764            return intent;
3765
3766        } catch (IndexOutOfBoundsException e) {
3767            throw new URISyntaxException(uri, "illegal Intent URI format", i);
3768        }
3769    }
3770
3771    public static Intent getIntentOld(String uri) throws URISyntaxException {
3772        Intent intent;
3773
3774        int i = uri.lastIndexOf('#');
3775        if (i >= 0) {
3776            String action = null;
3777            final int intentFragmentStart = i;
3778            boolean isIntentFragment = false;
3779
3780            i++;
3781
3782            if (uri.regionMatches(i, "action(", 0, 7)) {
3783                isIntentFragment = true;
3784                i += 7;
3785                int j = uri.indexOf(')', i);
3786                action = uri.substring(i, j);
3787                i = j + 1;
3788            }
3789
3790            intent = new Intent(action);
3791
3792            if (uri.regionMatches(i, "categories(", 0, 11)) {
3793                isIntentFragment = true;
3794                i += 11;
3795                int j = uri.indexOf(')', i);
3796                while (i < j) {
3797                    int sep = uri.indexOf('!', i);
3798                    if (sep < 0) sep = j;
3799                    if (i < sep) {
3800                        intent.addCategory(uri.substring(i, sep));
3801                    }
3802                    i = sep + 1;
3803                }
3804                i = j + 1;
3805            }
3806
3807            if (uri.regionMatches(i, "type(", 0, 5)) {
3808                isIntentFragment = true;
3809                i += 5;
3810                int j = uri.indexOf(')', i);
3811                intent.mType = uri.substring(i, j);
3812                i = j + 1;
3813            }
3814
3815            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
3816                isIntentFragment = true;
3817                i += 12;
3818                int j = uri.indexOf(')', i);
3819                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
3820                i = j + 1;
3821            }
3822
3823            if (uri.regionMatches(i, "component(", 0, 10)) {
3824                isIntentFragment = true;
3825                i += 10;
3826                int j = uri.indexOf(')', i);
3827                int sep = uri.indexOf('!', i);
3828                if (sep >= 0 && sep < j) {
3829                    String pkg = uri.substring(i, sep);
3830                    String cls = uri.substring(sep + 1, j);
3831                    intent.mComponent = new ComponentName(pkg, cls);
3832                }
3833                i = j + 1;
3834            }
3835
3836            if (uri.regionMatches(i, "extras(", 0, 7)) {
3837                isIntentFragment = true;
3838                i += 7;
3839
3840                final int closeParen = uri.indexOf(')', i);
3841                if (closeParen == -1) throw new URISyntaxException(uri,
3842                        "EXTRA missing trailing ')'", i);
3843
3844                while (i < closeParen) {
3845                    // fetch the key value
3846                    int j = uri.indexOf('=', i);
3847                    if (j <= i + 1 || i >= closeParen) {
3848                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
3849                    }
3850                    char type = uri.charAt(i);
3851                    i++;
3852                    String key = uri.substring(i, j);
3853                    i = j + 1;
3854
3855                    // get type-value
3856                    j = uri.indexOf('!', i);
3857                    if (j == -1 || j >= closeParen) j = closeParen;
3858                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
3859                    String value = uri.substring(i, j);
3860                    i = j;
3861
3862                    // create Bundle if it doesn't already exist
3863                    if (intent.mExtras == null) intent.mExtras = new Bundle();
3864
3865                    // add item to bundle
3866                    try {
3867                        switch (type) {
3868                            case 'S':
3869                                intent.mExtras.putString(key, Uri.decode(value));
3870                                break;
3871                            case 'B':
3872                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
3873                                break;
3874                            case 'b':
3875                                intent.mExtras.putByte(key, Byte.parseByte(value));
3876                                break;
3877                            case 'c':
3878                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
3879                                break;
3880                            case 'd':
3881                                intent.mExtras.putDouble(key, Double.parseDouble(value));
3882                                break;
3883                            case 'f':
3884                                intent.mExtras.putFloat(key, Float.parseFloat(value));
3885                                break;
3886                            case 'i':
3887                                intent.mExtras.putInt(key, Integer.parseInt(value));
3888                                break;
3889                            case 'l':
3890                                intent.mExtras.putLong(key, Long.parseLong(value));
3891                                break;
3892                            case 's':
3893                                intent.mExtras.putShort(key, Short.parseShort(value));
3894                                break;
3895                            default:
3896                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
3897                        }
3898                    } catch (NumberFormatException e) {
3899                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
3900                    }
3901
3902                    char ch = uri.charAt(i);
3903                    if (ch == ')') break;
3904                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
3905                    i++;
3906                }
3907            }
3908
3909            if (isIntentFragment) {
3910                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
3911            } else {
3912                intent.mData = Uri.parse(uri);
3913            }
3914
3915            if (intent.mAction == null) {
3916                // By default, if no action is specified, then use VIEW.
3917                intent.mAction = ACTION_VIEW;
3918            }
3919
3920        } else {
3921            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
3922        }
3923
3924        return intent;
3925    }
3926
3927    /**
3928     * Retrieve the general action to be performed, such as
3929     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
3930     * the information in the intent should be interpreted -- most importantly,
3931     * what to do with the data returned by {@link #getData}.
3932     *
3933     * @return The action of this intent or null if none is specified.
3934     *
3935     * @see #setAction
3936     */
3937    public String getAction() {
3938        return mAction;
3939    }
3940
3941    /**
3942     * Retrieve data this intent is operating on.  This URI specifies the name
3943     * of the data; often it uses the content: scheme, specifying data in a
3944     * content provider.  Other schemes may be handled by specific activities,
3945     * such as http: by the web browser.
3946     *
3947     * @return The URI of the data this intent is targeting or null.
3948     *
3949     * @see #getScheme
3950     * @see #setData
3951     */
3952    public Uri getData() {
3953        return mData;
3954    }
3955
3956    /**
3957     * The same as {@link #getData()}, but returns the URI as an encoded
3958     * String.
3959     */
3960    public String getDataString() {
3961        return mData != null ? mData.toString() : null;
3962    }
3963
3964    /**
3965     * Return the scheme portion of the intent's data.  If the data is null or
3966     * does not include a scheme, null is returned.  Otherwise, the scheme
3967     * prefix without the final ':' is returned, i.e. "http".
3968     *
3969     * <p>This is the same as calling getData().getScheme() (and checking for
3970     * null data).
3971     *
3972     * @return The scheme of this intent.
3973     *
3974     * @see #getData
3975     */
3976    public String getScheme() {
3977        return mData != null ? mData.getScheme() : null;
3978    }
3979
3980    /**
3981     * Retrieve any explicit MIME type included in the intent.  This is usually
3982     * null, as the type is determined by the intent data.
3983     *
3984     * @return If a type was manually set, it is returned; else null is
3985     *         returned.
3986     *
3987     * @see #resolveType(ContentResolver)
3988     * @see #setType
3989     */
3990    public String getType() {
3991        return mType;
3992    }
3993
3994    /**
3995     * Return the MIME data type of this intent.  If the type field is
3996     * explicitly set, that is simply returned.  Otherwise, if the data is set,
3997     * the type of that data is returned.  If neither fields are set, a null is
3998     * returned.
3999     *
4000     * @return The MIME type of this intent.
4001     *
4002     * @see #getType
4003     * @see #resolveType(ContentResolver)
4004     */
4005    public String resolveType(Context context) {
4006        return resolveType(context.getContentResolver());
4007    }
4008
4009    /**
4010     * Return the MIME data type of this intent.  If the type field is
4011     * explicitly set, that is simply returned.  Otherwise, if the data is set,
4012     * the type of that data is returned.  If neither fields are set, a null is
4013     * returned.
4014     *
4015     * @param resolver A ContentResolver that can be used to determine the MIME
4016     *                 type of the intent's data.
4017     *
4018     * @return The MIME type of this intent.
4019     *
4020     * @see #getType
4021     * @see #resolveType(Context)
4022     */
4023    public String resolveType(ContentResolver resolver) {
4024        if (mType != null) {
4025            return mType;
4026        }
4027        if (mData != null) {
4028            if ("content".equals(mData.getScheme())) {
4029                return resolver.getType(mData);
4030            }
4031        }
4032        return null;
4033    }
4034
4035    /**
4036     * Return the MIME data type of this intent, only if it will be needed for
4037     * intent resolution.  This is not generally useful for application code;
4038     * it is used by the frameworks for communicating with back-end system
4039     * services.
4040     *
4041     * @param resolver A ContentResolver that can be used to determine the MIME
4042     *                 type of the intent's data.
4043     *
4044     * @return The MIME type of this intent, or null if it is unknown or not
4045     *         needed.
4046     */
4047    public String resolveTypeIfNeeded(ContentResolver resolver) {
4048        if (mComponent != null) {
4049            return mType;
4050        }
4051        return resolveType(resolver);
4052    }
4053
4054    /**
4055     * Check if a category exists in the intent.
4056     *
4057     * @param category The category to check.
4058     *
4059     * @return boolean True if the intent contains the category, else false.
4060     *
4061     * @see #getCategories
4062     * @see #addCategory
4063     */
4064    public boolean hasCategory(String category) {
4065        return mCategories != null && mCategories.contains(category);
4066    }
4067
4068    /**
4069     * Return the set of all categories in the intent.  If there are no categories,
4070     * returns NULL.
4071     *
4072     * @return The set of categories you can examine.  Do not modify!
4073     *
4074     * @see #hasCategory
4075     * @see #addCategory
4076     */
4077    public Set<String> getCategories() {
4078        return mCategories;
4079    }
4080
4081    /**
4082     * Return the specific selector associated with this Intent.  If there is
4083     * none, returns null.  See {@link #setSelector} for more information.
4084     *
4085     * @see #setSelector
4086     */
4087    public Intent getSelector() {
4088        return mSelector;
4089    }
4090
4091    /**
4092     * Return the {@link ClipData} associated with this Intent.  If there is
4093     * none, returns null.  See {@link #setClipData} for more information.
4094     *
4095     * @see #setClipData;
4096     */
4097    public ClipData getClipData() {
4098        return mClipData;
4099    }
4100
4101    /**
4102     * Sets the ClassLoader that will be used when unmarshalling
4103     * any Parcelable values from the extras of this Intent.
4104     *
4105     * @param loader a ClassLoader, or null to use the default loader
4106     * at the time of unmarshalling.
4107     */
4108    public void setExtrasClassLoader(ClassLoader loader) {
4109        if (mExtras != null) {
4110            mExtras.setClassLoader(loader);
4111        }
4112    }
4113
4114    /**
4115     * Returns true if an extra value is associated with the given name.
4116     * @param name the extra's name
4117     * @return true if the given extra is present.
4118     */
4119    public boolean hasExtra(String name) {
4120        return mExtras != null && mExtras.containsKey(name);
4121    }
4122
4123    /**
4124     * Returns true if the Intent's extras contain a parcelled file descriptor.
4125     * @return true if the Intent contains a parcelled file descriptor.
4126     */
4127    public boolean hasFileDescriptors() {
4128        return mExtras != null && mExtras.hasFileDescriptors();
4129    }
4130
4131    /** @hide */
4132    public void setAllowFds(boolean allowFds) {
4133        if (mExtras != null) {
4134            mExtras.setAllowFds(allowFds);
4135        }
4136    }
4137
4138    /**
4139     * Retrieve extended data from the intent.
4140     *
4141     * @param name The name of the desired item.
4142     *
4143     * @return the value of an item that previously added with putExtra()
4144     * or null if none was found.
4145     *
4146     * @deprecated
4147     * @hide
4148     */
4149    @Deprecated
4150    public Object getExtra(String name) {
4151        return getExtra(name, null);
4152    }
4153
4154    /**
4155     * Retrieve extended data from the intent.
4156     *
4157     * @param name The name of the desired item.
4158     * @param defaultValue the value to be returned if no value of the desired
4159     * type is stored with the given name.
4160     *
4161     * @return the value of an item that previously added with putExtra()
4162     * or the default value if none was found.
4163     *
4164     * @see #putExtra(String, boolean)
4165     */
4166    public boolean getBooleanExtra(String name, boolean defaultValue) {
4167        return mExtras == null ? defaultValue :
4168            mExtras.getBoolean(name, defaultValue);
4169    }
4170
4171    /**
4172     * Retrieve extended data from the intent.
4173     *
4174     * @param name The name of the desired item.
4175     * @param defaultValue the value to be returned if no value of the desired
4176     * type is stored with the given name.
4177     *
4178     * @return the value of an item that previously added with putExtra()
4179     * or the default value if none was found.
4180     *
4181     * @see #putExtra(String, byte)
4182     */
4183    public byte getByteExtra(String name, byte defaultValue) {
4184        return mExtras == null ? defaultValue :
4185            mExtras.getByte(name, defaultValue);
4186    }
4187
4188    /**
4189     * Retrieve extended data from the intent.
4190     *
4191     * @param name The name of the desired item.
4192     * @param defaultValue the value to be returned if no value of the desired
4193     * type is stored with the given name.
4194     *
4195     * @return the value of an item that previously added with putExtra()
4196     * or the default value if none was found.
4197     *
4198     * @see #putExtra(String, short)
4199     */
4200    public short getShortExtra(String name, short defaultValue) {
4201        return mExtras == null ? defaultValue :
4202            mExtras.getShort(name, defaultValue);
4203    }
4204
4205    /**
4206     * Retrieve extended data from the intent.
4207     *
4208     * @param name The name of the desired item.
4209     * @param defaultValue the value to be returned if no value of the desired
4210     * type is stored with the given name.
4211     *
4212     * @return the value of an item that previously added with putExtra()
4213     * or the default value if none was found.
4214     *
4215     * @see #putExtra(String, char)
4216     */
4217    public char getCharExtra(String name, char defaultValue) {
4218        return mExtras == null ? defaultValue :
4219            mExtras.getChar(name, defaultValue);
4220    }
4221
4222    /**
4223     * Retrieve extended data from the intent.
4224     *
4225     * @param name The name of the desired item.
4226     * @param defaultValue the value to be returned if no value of the desired
4227     * type is stored with the given name.
4228     *
4229     * @return the value of an item that previously added with putExtra()
4230     * or the default value if none was found.
4231     *
4232     * @see #putExtra(String, int)
4233     */
4234    public int getIntExtra(String name, int defaultValue) {
4235        return mExtras == null ? defaultValue :
4236            mExtras.getInt(name, defaultValue);
4237    }
4238
4239    /**
4240     * Retrieve extended data from the intent.
4241     *
4242     * @param name The name of the desired item.
4243     * @param defaultValue the value to be returned if no value of the desired
4244     * type is stored with the given name.
4245     *
4246     * @return the value of an item that previously added with putExtra()
4247     * or the default value if none was found.
4248     *
4249     * @see #putExtra(String, long)
4250     */
4251    public long getLongExtra(String name, long defaultValue) {
4252        return mExtras == null ? defaultValue :
4253            mExtras.getLong(name, defaultValue);
4254    }
4255
4256    /**
4257     * Retrieve extended data from the intent.
4258     *
4259     * @param name The name of the desired item.
4260     * @param defaultValue the value to be returned if no value of the desired
4261     * type is stored with the given name.
4262     *
4263     * @return the value of an item that previously added with putExtra(),
4264     * or the default value if no such item is present
4265     *
4266     * @see #putExtra(String, float)
4267     */
4268    public float getFloatExtra(String name, float defaultValue) {
4269        return mExtras == null ? defaultValue :
4270            mExtras.getFloat(name, defaultValue);
4271    }
4272
4273    /**
4274     * Retrieve extended data from the intent.
4275     *
4276     * @param name The name of the desired item.
4277     * @param defaultValue the value to be returned if no value of the desired
4278     * type is stored with the given name.
4279     *
4280     * @return the value of an item that previously added with putExtra()
4281     * or the default value if none was found.
4282     *
4283     * @see #putExtra(String, double)
4284     */
4285    public double getDoubleExtra(String name, double defaultValue) {
4286        return mExtras == null ? defaultValue :
4287            mExtras.getDouble(name, defaultValue);
4288    }
4289
4290    /**
4291     * Retrieve extended data from the intent.
4292     *
4293     * @param name The name of the desired item.
4294     *
4295     * @return the value of an item that previously added with putExtra()
4296     * or null if no String value was found.
4297     *
4298     * @see #putExtra(String, String)
4299     */
4300    public String getStringExtra(String name) {
4301        return mExtras == null ? null : mExtras.getString(name);
4302    }
4303
4304    /**
4305     * Retrieve extended data from the intent.
4306     *
4307     * @param name The name of the desired item.
4308     *
4309     * @return the value of an item that previously added with putExtra()
4310     * or null if no CharSequence value was found.
4311     *
4312     * @see #putExtra(String, CharSequence)
4313     */
4314    public CharSequence getCharSequenceExtra(String name) {
4315        return mExtras == null ? null : mExtras.getCharSequence(name);
4316    }
4317
4318    /**
4319     * Retrieve extended data from the intent.
4320     *
4321     * @param name The name of the desired item.
4322     *
4323     * @return the value of an item that previously added with putExtra()
4324     * or null if no Parcelable value was found.
4325     *
4326     * @see #putExtra(String, Parcelable)
4327     */
4328    public <T extends Parcelable> T getParcelableExtra(String name) {
4329        return mExtras == null ? null : mExtras.<T>getParcelable(name);
4330    }
4331
4332    /**
4333     * Retrieve extended data from the intent.
4334     *
4335     * @param name The name of the desired item.
4336     *
4337     * @return the value of an item that previously added with putExtra()
4338     * or null if no Parcelable[] value was found.
4339     *
4340     * @see #putExtra(String, Parcelable[])
4341     */
4342    public Parcelable[] getParcelableArrayExtra(String name) {
4343        return mExtras == null ? null : mExtras.getParcelableArray(name);
4344    }
4345
4346    /**
4347     * Retrieve extended data from the intent.
4348     *
4349     * @param name The name of the desired item.
4350     *
4351     * @return the value of an item that previously added with putExtra()
4352     * or null if no ArrayList<Parcelable> value was found.
4353     *
4354     * @see #putParcelableArrayListExtra(String, ArrayList)
4355     */
4356    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
4357        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
4358    }
4359
4360    /**
4361     * Retrieve extended data from the intent.
4362     *
4363     * @param name The name of the desired item.
4364     *
4365     * @return the value of an item that previously added with putExtra()
4366     * or null if no Serializable value was found.
4367     *
4368     * @see #putExtra(String, Serializable)
4369     */
4370    public Serializable getSerializableExtra(String name) {
4371        return mExtras == null ? null : mExtras.getSerializable(name);
4372    }
4373
4374    /**
4375     * Retrieve extended data from the intent.
4376     *
4377     * @param name The name of the desired item.
4378     *
4379     * @return the value of an item that previously added with putExtra()
4380     * or null if no ArrayList<Integer> value was found.
4381     *
4382     * @see #putIntegerArrayListExtra(String, ArrayList)
4383     */
4384    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
4385        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
4386    }
4387
4388    /**
4389     * Retrieve extended data from the intent.
4390     *
4391     * @param name The name of the desired item.
4392     *
4393     * @return the value of an item that previously added with putExtra()
4394     * or null if no ArrayList<String> value was found.
4395     *
4396     * @see #putStringArrayListExtra(String, ArrayList)
4397     */
4398    public ArrayList<String> getStringArrayListExtra(String name) {
4399        return mExtras == null ? null : mExtras.getStringArrayList(name);
4400    }
4401
4402    /**
4403     * Retrieve extended data from the intent.
4404     *
4405     * @param name The name of the desired item.
4406     *
4407     * @return the value of an item that previously added with putExtra()
4408     * or null if no ArrayList<CharSequence> value was found.
4409     *
4410     * @see #putCharSequenceArrayListExtra(String, ArrayList)
4411     */
4412    public ArrayList<CharSequence> getCharSequenceArrayListExtra(String name) {
4413        return mExtras == null ? null : mExtras.getCharSequenceArrayList(name);
4414    }
4415
4416    /**
4417     * Retrieve extended data from the intent.
4418     *
4419     * @param name The name of the desired item.
4420     *
4421     * @return the value of an item that previously added with putExtra()
4422     * or null if no boolean array value was found.
4423     *
4424     * @see #putExtra(String, boolean[])
4425     */
4426    public boolean[] getBooleanArrayExtra(String name) {
4427        return mExtras == null ? null : mExtras.getBooleanArray(name);
4428    }
4429
4430    /**
4431     * Retrieve extended data from the intent.
4432     *
4433     * @param name The name of the desired item.
4434     *
4435     * @return the value of an item that previously added with putExtra()
4436     * or null if no byte array value was found.
4437     *
4438     * @see #putExtra(String, byte[])
4439     */
4440    public byte[] getByteArrayExtra(String name) {
4441        return mExtras == null ? null : mExtras.getByteArray(name);
4442    }
4443
4444    /**
4445     * Retrieve extended data from the intent.
4446     *
4447     * @param name The name of the desired item.
4448     *
4449     * @return the value of an item that previously added with putExtra()
4450     * or null if no short array value was found.
4451     *
4452     * @see #putExtra(String, short[])
4453     */
4454    public short[] getShortArrayExtra(String name) {
4455        return mExtras == null ? null : mExtras.getShortArray(name);
4456    }
4457
4458    /**
4459     * Retrieve extended data from the intent.
4460     *
4461     * @param name The name of the desired item.
4462     *
4463     * @return the value of an item that previously added with putExtra()
4464     * or null if no char array value was found.
4465     *
4466     * @see #putExtra(String, char[])
4467     */
4468    public char[] getCharArrayExtra(String name) {
4469        return mExtras == null ? null : mExtras.getCharArray(name);
4470    }
4471
4472    /**
4473     * Retrieve extended data from the intent.
4474     *
4475     * @param name The name of the desired item.
4476     *
4477     * @return the value of an item that previously added with putExtra()
4478     * or null if no int array value was found.
4479     *
4480     * @see #putExtra(String, int[])
4481     */
4482    public int[] getIntArrayExtra(String name) {
4483        return mExtras == null ? null : mExtras.getIntArray(name);
4484    }
4485
4486    /**
4487     * Retrieve extended data from the intent.
4488     *
4489     * @param name The name of the desired item.
4490     *
4491     * @return the value of an item that previously added with putExtra()
4492     * or null if no long array value was found.
4493     *
4494     * @see #putExtra(String, long[])
4495     */
4496    public long[] getLongArrayExtra(String name) {
4497        return mExtras == null ? null : mExtras.getLongArray(name);
4498    }
4499
4500    /**
4501     * Retrieve extended data from the intent.
4502     *
4503     * @param name The name of the desired item.
4504     *
4505     * @return the value of an item that previously added with putExtra()
4506     * or null if no float array value was found.
4507     *
4508     * @see #putExtra(String, float[])
4509     */
4510    public float[] getFloatArrayExtra(String name) {
4511        return mExtras == null ? null : mExtras.getFloatArray(name);
4512    }
4513
4514    /**
4515     * Retrieve extended data from the intent.
4516     *
4517     * @param name The name of the desired item.
4518     *
4519     * @return the value of an item that previously added with putExtra()
4520     * or null if no double array value was found.
4521     *
4522     * @see #putExtra(String, double[])
4523     */
4524    public double[] getDoubleArrayExtra(String name) {
4525        return mExtras == null ? null : mExtras.getDoubleArray(name);
4526    }
4527
4528    /**
4529     * Retrieve extended data from the intent.
4530     *
4531     * @param name The name of the desired item.
4532     *
4533     * @return the value of an item that previously added with putExtra()
4534     * or null if no String array value was found.
4535     *
4536     * @see #putExtra(String, String[])
4537     */
4538    public String[] getStringArrayExtra(String name) {
4539        return mExtras == null ? null : mExtras.getStringArray(name);
4540    }
4541
4542    /**
4543     * Retrieve extended data from the intent.
4544     *
4545     * @param name The name of the desired item.
4546     *
4547     * @return the value of an item that previously added with putExtra()
4548     * or null if no CharSequence array value was found.
4549     *
4550     * @see #putExtra(String, CharSequence[])
4551     */
4552    public CharSequence[] getCharSequenceArrayExtra(String name) {
4553        return mExtras == null ? null : mExtras.getCharSequenceArray(name);
4554    }
4555
4556    /**
4557     * Retrieve extended data from the intent.
4558     *
4559     * @param name The name of the desired item.
4560     *
4561     * @return the value of an item that previously added with putExtra()
4562     * or null if no Bundle value was found.
4563     *
4564     * @see #putExtra(String, Bundle)
4565     */
4566    public Bundle getBundleExtra(String name) {
4567        return mExtras == null ? null : mExtras.getBundle(name);
4568    }
4569
4570    /**
4571     * Retrieve extended data from the intent.
4572     *
4573     * @param name The name of the desired item.
4574     *
4575     * @return the value of an item that previously added with putExtra()
4576     * or null if no IBinder value was found.
4577     *
4578     * @see #putExtra(String, IBinder)
4579     *
4580     * @deprecated
4581     * @hide
4582     */
4583    @Deprecated
4584    public IBinder getIBinderExtra(String name) {
4585        return mExtras == null ? null : mExtras.getIBinder(name);
4586    }
4587
4588    /**
4589     * Retrieve extended data from the intent.
4590     *
4591     * @param name The name of the desired item.
4592     * @param defaultValue The default value to return in case no item is
4593     * associated with the key 'name'
4594     *
4595     * @return the value of an item that previously added with putExtra()
4596     * or defaultValue if none was found.
4597     *
4598     * @see #putExtra
4599     *
4600     * @deprecated
4601     * @hide
4602     */
4603    @Deprecated
4604    public Object getExtra(String name, Object defaultValue) {
4605        Object result = defaultValue;
4606        if (mExtras != null) {
4607            Object result2 = mExtras.get(name);
4608            if (result2 != null) {
4609                result = result2;
4610            }
4611        }
4612
4613        return result;
4614    }
4615
4616    /**
4617     * Retrieves a map of extended data from the intent.
4618     *
4619     * @return the map of all extras previously added with putExtra(),
4620     * or null if none have been added.
4621     */
4622    public Bundle getExtras() {
4623        return (mExtras != null)
4624                ? new Bundle(mExtras)
4625                : null;
4626    }
4627
4628    /**
4629     * Retrieve any special flags associated with this intent.  You will
4630     * normally just set them with {@link #setFlags} and let the system
4631     * take the appropriate action with them.
4632     *
4633     * @return int The currently set flags.
4634     *
4635     * @see #setFlags
4636     */
4637    public int getFlags() {
4638        return mFlags;
4639    }
4640
4641    /** @hide */
4642    public boolean isExcludingStopped() {
4643        return (mFlags&(FLAG_EXCLUDE_STOPPED_PACKAGES|FLAG_INCLUDE_STOPPED_PACKAGES))
4644                == FLAG_EXCLUDE_STOPPED_PACKAGES;
4645    }
4646
4647    /**
4648     * Retrieve the application package name this Intent is limited to.  When
4649     * resolving an Intent, if non-null this limits the resolution to only
4650     * components in the given application package.
4651     *
4652     * @return The name of the application package for the Intent.
4653     *
4654     * @see #resolveActivity
4655     * @see #setPackage
4656     */
4657    public String getPackage() {
4658        return mPackage;
4659    }
4660
4661    /**
4662     * Retrieve the concrete component associated with the intent.  When receiving
4663     * an intent, this is the component that was found to best handle it (that is,
4664     * yourself) and will always be non-null; in all other cases it will be
4665     * null unless explicitly set.
4666     *
4667     * @return The name of the application component to handle the intent.
4668     *
4669     * @see #resolveActivity
4670     * @see #setComponent
4671     */
4672    public ComponentName getComponent() {
4673        return mComponent;
4674    }
4675
4676    /**
4677     * Get the bounds of the sender of this intent, in screen coordinates.  This can be
4678     * used as a hint to the receiver for animations and the like.  Null means that there
4679     * is no source bounds.
4680     */
4681    public Rect getSourceBounds() {
4682        return mSourceBounds;
4683    }
4684
4685    /**
4686     * Return the Activity component that should be used to handle this intent.
4687     * The appropriate component is determined based on the information in the
4688     * intent, evaluated as follows:
4689     *
4690     * <p>If {@link #getComponent} returns an explicit class, that is returned
4691     * without any further consideration.
4692     *
4693     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
4694     * category to be considered.
4695     *
4696     * <p>If {@link #getAction} is non-NULL, the activity must handle this
4697     * action.
4698     *
4699     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
4700     * this type.
4701     *
4702     * <p>If {@link #addCategory} has added any categories, the activity must
4703     * handle ALL of the categories specified.
4704     *
4705     * <p>If {@link #getPackage} is non-NULL, only activity components in
4706     * that application package will be considered.
4707     *
4708     * <p>If there are no activities that satisfy all of these conditions, a
4709     * null string is returned.
4710     *
4711     * <p>If multiple activities are found to satisfy the intent, the one with
4712     * the highest priority will be used.  If there are multiple activities
4713     * with the same priority, the system will either pick the best activity
4714     * based on user preference, or resolve to a system class that will allow
4715     * the user to pick an activity and forward from there.
4716     *
4717     * <p>This method is implemented simply by calling
4718     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
4719     * true.</p>
4720     * <p> This API is called for you as part of starting an activity from an
4721     * intent.  You do not normally need to call it yourself.</p>
4722     *
4723     * @param pm The package manager with which to resolve the Intent.
4724     *
4725     * @return Name of the component implementing an activity that can
4726     *         display the intent.
4727     *
4728     * @see #setComponent
4729     * @see #getComponent
4730     * @see #resolveActivityInfo
4731     */
4732    public ComponentName resolveActivity(PackageManager pm) {
4733        if (mComponent != null) {
4734            return mComponent;
4735        }
4736
4737        ResolveInfo info = pm.resolveActivity(
4738            this, PackageManager.MATCH_DEFAULT_ONLY);
4739        if (info != null) {
4740            return new ComponentName(
4741                    info.activityInfo.applicationInfo.packageName,
4742                    info.activityInfo.name);
4743        }
4744
4745        return null;
4746    }
4747
4748    /**
4749     * Resolve the Intent into an {@link ActivityInfo}
4750     * describing the activity that should execute the intent.  Resolution
4751     * follows the same rules as described for {@link #resolveActivity}, but
4752     * you get back the completely information about the resolved activity
4753     * instead of just its class name.
4754     *
4755     * @param pm The package manager with which to resolve the Intent.
4756     * @param flags Addition information to retrieve as per
4757     * {@link PackageManager#getActivityInfo(ComponentName, int)
4758     * PackageManager.getActivityInfo()}.
4759     *
4760     * @return PackageManager.ActivityInfo
4761     *
4762     * @see #resolveActivity
4763     */
4764    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
4765        ActivityInfo ai = null;
4766        if (mComponent != null) {
4767            try {
4768                ai = pm.getActivityInfo(mComponent, flags);
4769            } catch (PackageManager.NameNotFoundException e) {
4770                // ignore
4771            }
4772        } else {
4773            ResolveInfo info = pm.resolveActivity(
4774                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
4775            if (info != null) {
4776                ai = info.activityInfo;
4777            }
4778        }
4779
4780        return ai;
4781    }
4782
4783    /**
4784     * Set the general action to be performed.
4785     *
4786     * @param action An action name, such as ACTION_VIEW.  Application-specific
4787     *               actions should be prefixed with the vendor's package name.
4788     *
4789     * @return Returns the same Intent object, for chaining multiple calls
4790     * into a single statement.
4791     *
4792     * @see #getAction
4793     */
4794    public Intent setAction(String action) {
4795        mAction = action != null ? action.intern() : null;
4796        return this;
4797    }
4798
4799    /**
4800     * Set the data this intent is operating on.  This method automatically
4801     * clears any type that was previously set by {@link #setType} or
4802     * {@link #setTypeAndNormalize}.
4803     *
4804     * <p><em>Note: scheme matching in the Android framework is
4805     * case-sensitive, unlike the formal RFC. As a result,
4806     * you should always write your Uri with a lower case scheme,
4807     * or use {@link Uri#normalizeScheme} or
4808     * {@link #setDataAndNormalize}
4809     * to ensure that the scheme is converted to lower case.</em>
4810     *
4811     * @param data The Uri of the data this intent is now targeting.
4812     *
4813     * @return Returns the same Intent object, for chaining multiple calls
4814     * into a single statement.
4815     *
4816     * @see #getData
4817     * @see #setDataAndNormalize
4818     * @see android.net.Intent#normalize
4819     */
4820    public Intent setData(Uri data) {
4821        mData = data;
4822        mType = null;
4823        return this;
4824    }
4825
4826    /**
4827     * Normalize and set the data this intent is operating on.
4828     *
4829     * <p>This method automatically clears any type that was
4830     * previously set (for example, by {@link #setType}).
4831     *
4832     * <p>The data Uri is normalized using
4833     * {@link android.net.Uri#normalizeScheme} before it is set,
4834     * so really this is just a convenience method for
4835     * <pre>
4836     * setData(data.normalize())
4837     * </pre>
4838     *
4839     * @param data The Uri of the data this intent is now targeting.
4840     *
4841     * @return Returns the same Intent object, for chaining multiple calls
4842     * into a single statement.
4843     *
4844     * @see #getData
4845     * @see #setType
4846     * @see android.net.Uri#normalizeScheme
4847     */
4848    public Intent setDataAndNormalize(Uri data) {
4849        return setData(data.normalizeScheme());
4850    }
4851
4852    /**
4853     * Set an explicit MIME data type.
4854     *
4855     * <p>This is used to create intents that only specify a type and not data,
4856     * for example to indicate the type of data to return.
4857     *
4858     * <p>This method automatically clears any data that was
4859     * previously set (for example by {@link #setData}).
4860     *
4861     * <p><em>Note: MIME type matching in the Android framework is
4862     * case-sensitive, unlike formal RFC MIME types.  As a result,
4863     * you should always write your MIME types with lower case letters,
4864     * or use {@link #normalizeMimeType} or {@link #setTypeAndNormalize}
4865     * to ensure that it is converted to lower case.</em>
4866     *
4867     * @param type The MIME type of the data being handled by this intent.
4868     *
4869     * @return Returns the same Intent object, for chaining multiple calls
4870     * into a single statement.
4871     *
4872     * @see #getType
4873     * @see #setTypeAndNormalize
4874     * @see #setDataAndType
4875     * @see #normalizeMimeType
4876     */
4877    public Intent setType(String type) {
4878        mData = null;
4879        mType = type;
4880        return this;
4881    }
4882
4883    /**
4884     * Normalize and set an explicit MIME data type.
4885     *
4886     * <p>This is used to create intents that only specify a type and not data,
4887     * for example to indicate the type of data to return.
4888     *
4889     * <p>This method automatically clears any data that was
4890     * previously set (for example by {@link #setData}).
4891     *
4892     * <p>The MIME type is normalized using
4893     * {@link #normalizeMimeType} before it is set,
4894     * so really this is just a convenience method for
4895     * <pre>
4896     * setType(Intent.normalizeMimeType(type))
4897     * </pre>
4898     *
4899     * @param type The MIME type of the data being handled by this intent.
4900     *
4901     * @return Returns the same Intent object, for chaining multiple calls
4902     * into a single statement.
4903     *
4904     * @see #getType
4905     * @see #setData
4906     * @see #normalizeMimeType
4907     */
4908    public Intent setTypeAndNormalize(String type) {
4909        return setType(normalizeMimeType(type));
4910    }
4911
4912    /**
4913     * (Usually optional) Set the data for the intent along with an explicit
4914     * MIME data type.  This method should very rarely be used -- it allows you
4915     * to override the MIME type that would ordinarily be inferred from the
4916     * data with your own type given here.
4917     *
4918     * <p><em>Note: MIME type and Uri scheme matching in the
4919     * Android framework is case-sensitive, unlike the formal RFC definitions.
4920     * As a result, you should always write these elements with lower case letters,
4921     * or use {@link #normalizeMimeType} or {@link android.net.Uri#normalizeScheme} or
4922     * {@link #setDataAndTypeAndNormalize}
4923     * to ensure that they are converted to lower case.</em>
4924     *
4925     * @param data The Uri of the data this intent is now targeting.
4926     * @param type The MIME type of the data being handled by this intent.
4927     *
4928     * @return Returns the same Intent object, for chaining multiple calls
4929     * into a single statement.
4930     *
4931     * @see #setType
4932     * @see #setData
4933     * @see #normalizeMimeType
4934     * @see android.net.Uri#normalizeScheme
4935     * @see #setDataAndTypeAndNormalize
4936     */
4937    public Intent setDataAndType(Uri data, String type) {
4938        mData = data;
4939        mType = type;
4940        return this;
4941    }
4942
4943    /**
4944     * (Usually optional) Normalize and set both the data Uri and an explicit
4945     * MIME data type.  This method should very rarely be used -- it allows you
4946     * to override the MIME type that would ordinarily be inferred from the
4947     * data with your own type given here.
4948     *
4949     * <p>The data Uri and the MIME type are normalize using
4950     * {@link android.net.Uri#normalizeScheme} and {@link #normalizeMimeType}
4951     * before they are set, so really this is just a convenience method for
4952     * <pre>
4953     * setDataAndType(data.normalize(), Intent.normalizeMimeType(type))
4954     * </pre>
4955     *
4956     * @param data The Uri of the data this intent is now targeting.
4957     * @param type The MIME type of the data being handled by this intent.
4958     *
4959     * @return Returns the same Intent object, for chaining multiple calls
4960     * into a single statement.
4961     *
4962     * @see #setType
4963     * @see #setData
4964     * @see #setDataAndType
4965     * @see #normalizeMimeType
4966     * @see android.net.Uri#normalizeScheme
4967     */
4968    public Intent setDataAndTypeAndNormalize(Uri data, String type) {
4969        return setDataAndType(data.normalizeScheme(), normalizeMimeType(type));
4970    }
4971
4972    /**
4973     * Add a new category to the intent.  Categories provide additional detail
4974     * about the action the intent performs.  When resolving an intent, only
4975     * activities that provide <em>all</em> of the requested categories will be
4976     * used.
4977     *
4978     * @param category The desired category.  This can be either one of the
4979     *               predefined Intent categories, or a custom category in your own
4980     *               namespace.
4981     *
4982     * @return Returns the same Intent object, for chaining multiple calls
4983     * into a single statement.
4984     *
4985     * @see #hasCategory
4986     * @see #removeCategory
4987     */
4988    public Intent addCategory(String category) {
4989        if (mCategories == null) {
4990            mCategories = new HashSet<String>();
4991        }
4992        mCategories.add(category.intern());
4993        return this;
4994    }
4995
4996    /**
4997     * Remove a category from an intent.
4998     *
4999     * @param category The category to remove.
5000     *
5001     * @see #addCategory
5002     */
5003    public void removeCategory(String category) {
5004        if (mCategories != null) {
5005            mCategories.remove(category);
5006            if (mCategories.size() == 0) {
5007                mCategories = null;
5008            }
5009        }
5010    }
5011
5012    /**
5013     * Set a selector for this Intent.  This is a modification to the kinds of
5014     * things the Intent will match.  If the selector is set, it will be used
5015     * when trying to find entities that can handle the Intent, instead of the
5016     * main contents of the Intent.  This allows you build an Intent containing
5017     * a generic protocol while targeting it more specifically.
5018     *
5019     * <p>An example of where this may be used is with things like
5020     * {@link #CATEGORY_APP_BROWSER}.  This category allows you to build an
5021     * Intent that will launch the Browser application.  However, the correct
5022     * main entry point of an application is actually {@link #ACTION_MAIN}
5023     * {@link #CATEGORY_LAUNCHER} with {@link #setComponent(ComponentName)}
5024     * used to specify the actual Activity to launch.  If you launch the browser
5025     * with something different, undesired behavior may happen if the user has
5026     * previously or later launches it the normal way, since they do not match.
5027     * Instead, you can build an Intent with the MAIN action (but no ComponentName
5028     * yet specified) and set a selector with {@link #ACTION_MAIN} and
5029     * {@link #CATEGORY_APP_BROWSER} to point it specifically to the browser activity.
5030     *
5031     * <p>Setting a selector does not impact the behavior of
5032     * {@link #filterEquals(Intent)} and {@link #filterHashCode()}.  This is part of the
5033     * desired behavior of a selector -- it does not impact the base meaning
5034     * of the Intent, just what kinds of things will be matched against it
5035     * when determining who can handle it.</p>
5036     *
5037     * <p>You can not use both a selector and {@link #setPackage(String)} on
5038     * the same base Intent.</p>
5039     *
5040     * @param selector The desired selector Intent; set to null to not use
5041     * a special selector.
5042     */
5043    public void setSelector(Intent selector) {
5044        if (selector == this) {
5045            throw new IllegalArgumentException(
5046                    "Intent being set as a selector of itself");
5047        }
5048        if (selector != null && mPackage != null) {
5049            throw new IllegalArgumentException(
5050                    "Can't set selector when package name is already set");
5051        }
5052        mSelector = selector;
5053    }
5054
5055    /**
5056     * Set a {@link ClipData} associated with this Intent.  This replaces any
5057     * previously set ClipData.
5058     *
5059     * <p>The ClipData in an intent is not used for Intent matching or other
5060     * such operations.  Semantically it is like extras, used to transmit
5061     * additional data with the Intent.  The main feature of using this over
5062     * the extras for data is that {@link #FLAG_GRANT_READ_URI_PERMISSION}
5063     * and {@link #FLAG_GRANT_WRITE_URI_PERMISSION} will operate on any URI
5064     * items included in the clip data.  This is useful, in particular, if
5065     * you want to transmit an Intent containing multiple <code>content:</code>
5066     * URIs for which the recipient may not have global permission to access the
5067     * content provider.
5068     *
5069     * <p>If the ClipData contains items that are themselves Intents, any
5070     * grant flags in those Intents will be ignored.  Only the top-level flags
5071     * of the main Intent are respected, and will be applied to all Uri or
5072     * Intent items in the clip (or sub-items of the clip).
5073     *
5074     * <p>The MIME type, label, and icon in the ClipData object are not
5075     * directly used by Intent.  Applications should generally rely on the
5076     * MIME type of the Intent itself, not what it may find in the ClipData.
5077     * A common practice is to construct a ClipData for use with an Intent
5078     * with a MIME type of "*\/*".
5079     *
5080     * @param clip The new clip to set.  May be null to clear the current clip.
5081     */
5082    public void setClipData(ClipData clip) {
5083        mClipData = clip;
5084    }
5085
5086    /**
5087     * Add extended data to the intent.  The name must include a package
5088     * prefix, for example the app com.android.contacts would use names
5089     * like "com.android.contacts.ShowAll".
5090     *
5091     * @param name The name of the extra data, with package prefix.
5092     * @param value The boolean data value.
5093     *
5094     * @return Returns the same Intent object, for chaining multiple calls
5095     * into a single statement.
5096     *
5097     * @see #putExtras
5098     * @see #removeExtra
5099     * @see #getBooleanExtra(String, boolean)
5100     */
5101    public Intent putExtra(String name, boolean value) {
5102        if (mExtras == null) {
5103            mExtras = new Bundle();
5104        }
5105        mExtras.putBoolean(name, value);
5106        return this;
5107    }
5108
5109    /**
5110     * Add extended data to the intent.  The name must include a package
5111     * prefix, for example the app com.android.contacts would use names
5112     * like "com.android.contacts.ShowAll".
5113     *
5114     * @param name The name of the extra data, with package prefix.
5115     * @param value The byte data value.
5116     *
5117     * @return Returns the same Intent object, for chaining multiple calls
5118     * into a single statement.
5119     *
5120     * @see #putExtras
5121     * @see #removeExtra
5122     * @see #getByteExtra(String, byte)
5123     */
5124    public Intent putExtra(String name, byte value) {
5125        if (mExtras == null) {
5126            mExtras = new Bundle();
5127        }
5128        mExtras.putByte(name, value);
5129        return this;
5130    }
5131
5132    /**
5133     * Add extended data to the intent.  The name must include a package
5134     * prefix, for example the app com.android.contacts would use names
5135     * like "com.android.contacts.ShowAll".
5136     *
5137     * @param name The name of the extra data, with package prefix.
5138     * @param value The char data value.
5139     *
5140     * @return Returns the same Intent object, for chaining multiple calls
5141     * into a single statement.
5142     *
5143     * @see #putExtras
5144     * @see #removeExtra
5145     * @see #getCharExtra(String, char)
5146     */
5147    public Intent putExtra(String name, char value) {
5148        if (mExtras == null) {
5149            mExtras = new Bundle();
5150        }
5151        mExtras.putChar(name, value);
5152        return this;
5153    }
5154
5155    /**
5156     * Add extended data to the intent.  The name must include a package
5157     * prefix, for example the app com.android.contacts would use names
5158     * like "com.android.contacts.ShowAll".
5159     *
5160     * @param name The name of the extra data, with package prefix.
5161     * @param value The short data value.
5162     *
5163     * @return Returns the same Intent object, for chaining multiple calls
5164     * into a single statement.
5165     *
5166     * @see #putExtras
5167     * @see #removeExtra
5168     * @see #getShortExtra(String, short)
5169     */
5170    public Intent putExtra(String name, short value) {
5171        if (mExtras == null) {
5172            mExtras = new Bundle();
5173        }
5174        mExtras.putShort(name, value);
5175        return this;
5176    }
5177
5178    /**
5179     * Add extended data to the intent.  The name must include a package
5180     * prefix, for example the app com.android.contacts would use names
5181     * like "com.android.contacts.ShowAll".
5182     *
5183     * @param name The name of the extra data, with package prefix.
5184     * @param value The integer data value.
5185     *
5186     * @return Returns the same Intent object, for chaining multiple calls
5187     * into a single statement.
5188     *
5189     * @see #putExtras
5190     * @see #removeExtra
5191     * @see #getIntExtra(String, int)
5192     */
5193    public Intent putExtra(String name, int value) {
5194        if (mExtras == null) {
5195            mExtras = new Bundle();
5196        }
5197        mExtras.putInt(name, value);
5198        return this;
5199    }
5200
5201    /**
5202     * Add extended data to the intent.  The name must include a package
5203     * prefix, for example the app com.android.contacts would use names
5204     * like "com.android.contacts.ShowAll".
5205     *
5206     * @param name The name of the extra data, with package prefix.
5207     * @param value The long data value.
5208     *
5209     * @return Returns the same Intent object, for chaining multiple calls
5210     * into a single statement.
5211     *
5212     * @see #putExtras
5213     * @see #removeExtra
5214     * @see #getLongExtra(String, long)
5215     */
5216    public Intent putExtra(String name, long value) {
5217        if (mExtras == null) {
5218            mExtras = new Bundle();
5219        }
5220        mExtras.putLong(name, value);
5221        return this;
5222    }
5223
5224    /**
5225     * Add extended data to the intent.  The name must include a package
5226     * prefix, for example the app com.android.contacts would use names
5227     * like "com.android.contacts.ShowAll".
5228     *
5229     * @param name The name of the extra data, with package prefix.
5230     * @param value The float data value.
5231     *
5232     * @return Returns the same Intent object, for chaining multiple calls
5233     * into a single statement.
5234     *
5235     * @see #putExtras
5236     * @see #removeExtra
5237     * @see #getFloatExtra(String, float)
5238     */
5239    public Intent putExtra(String name, float value) {
5240        if (mExtras == null) {
5241            mExtras = new Bundle();
5242        }
5243        mExtras.putFloat(name, value);
5244        return this;
5245    }
5246
5247    /**
5248     * Add extended data to the intent.  The name must include a package
5249     * prefix, for example the app com.android.contacts would use names
5250     * like "com.android.contacts.ShowAll".
5251     *
5252     * @param name The name of the extra data, with package prefix.
5253     * @param value The double data value.
5254     *
5255     * @return Returns the same Intent object, for chaining multiple calls
5256     * into a single statement.
5257     *
5258     * @see #putExtras
5259     * @see #removeExtra
5260     * @see #getDoubleExtra(String, double)
5261     */
5262    public Intent putExtra(String name, double value) {
5263        if (mExtras == null) {
5264            mExtras = new Bundle();
5265        }
5266        mExtras.putDouble(name, value);
5267        return this;
5268    }
5269
5270    /**
5271     * Add extended data to the intent.  The name must include a package
5272     * prefix, for example the app com.android.contacts would use names
5273     * like "com.android.contacts.ShowAll".
5274     *
5275     * @param name The name of the extra data, with package prefix.
5276     * @param value The String data value.
5277     *
5278     * @return Returns the same Intent object, for chaining multiple calls
5279     * into a single statement.
5280     *
5281     * @see #putExtras
5282     * @see #removeExtra
5283     * @see #getStringExtra(String)
5284     */
5285    public Intent putExtra(String name, String value) {
5286        if (mExtras == null) {
5287            mExtras = new Bundle();
5288        }
5289        mExtras.putString(name, value);
5290        return this;
5291    }
5292
5293    /**
5294     * Add extended data to the intent.  The name must include a package
5295     * prefix, for example the app com.android.contacts would use names
5296     * like "com.android.contacts.ShowAll".
5297     *
5298     * @param name The name of the extra data, with package prefix.
5299     * @param value The CharSequence data value.
5300     *
5301     * @return Returns the same Intent object, for chaining multiple calls
5302     * into a single statement.
5303     *
5304     * @see #putExtras
5305     * @see #removeExtra
5306     * @see #getCharSequenceExtra(String)
5307     */
5308    public Intent putExtra(String name, CharSequence value) {
5309        if (mExtras == null) {
5310            mExtras = new Bundle();
5311        }
5312        mExtras.putCharSequence(name, value);
5313        return this;
5314    }
5315
5316    /**
5317     * Add extended data to the intent.  The name must include a package
5318     * prefix, for example the app com.android.contacts would use names
5319     * like "com.android.contacts.ShowAll".
5320     *
5321     * @param name The name of the extra data, with package prefix.
5322     * @param value The Parcelable data value.
5323     *
5324     * @return Returns the same Intent object, for chaining multiple calls
5325     * into a single statement.
5326     *
5327     * @see #putExtras
5328     * @see #removeExtra
5329     * @see #getParcelableExtra(String)
5330     */
5331    public Intent putExtra(String name, Parcelable value) {
5332        if (mExtras == null) {
5333            mExtras = new Bundle();
5334        }
5335        mExtras.putParcelable(name, value);
5336        return this;
5337    }
5338
5339    /**
5340     * Add extended data to the intent.  The name must include a package
5341     * prefix, for example the app com.android.contacts would use names
5342     * like "com.android.contacts.ShowAll".
5343     *
5344     * @param name The name of the extra data, with package prefix.
5345     * @param value The Parcelable[] data value.
5346     *
5347     * @return Returns the same Intent object, for chaining multiple calls
5348     * into a single statement.
5349     *
5350     * @see #putExtras
5351     * @see #removeExtra
5352     * @see #getParcelableArrayExtra(String)
5353     */
5354    public Intent putExtra(String name, Parcelable[] value) {
5355        if (mExtras == null) {
5356            mExtras = new Bundle();
5357        }
5358        mExtras.putParcelableArray(name, value);
5359        return this;
5360    }
5361
5362    /**
5363     * Add extended data to the intent.  The name must include a package
5364     * prefix, for example the app com.android.contacts would use names
5365     * like "com.android.contacts.ShowAll".
5366     *
5367     * @param name The name of the extra data, with package prefix.
5368     * @param value The ArrayList<Parcelable> data value.
5369     *
5370     * @return Returns the same Intent object, for chaining multiple calls
5371     * into a single statement.
5372     *
5373     * @see #putExtras
5374     * @see #removeExtra
5375     * @see #getParcelableArrayListExtra(String)
5376     */
5377    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
5378        if (mExtras == null) {
5379            mExtras = new Bundle();
5380        }
5381        mExtras.putParcelableArrayList(name, value);
5382        return this;
5383    }
5384
5385    /**
5386     * Add extended data to the intent.  The name must include a package
5387     * prefix, for example the app com.android.contacts would use names
5388     * like "com.android.contacts.ShowAll".
5389     *
5390     * @param name The name of the extra data, with package prefix.
5391     * @param value The ArrayList<Integer> data value.
5392     *
5393     * @return Returns the same Intent object, for chaining multiple calls
5394     * into a single statement.
5395     *
5396     * @see #putExtras
5397     * @see #removeExtra
5398     * @see #getIntegerArrayListExtra(String)
5399     */
5400    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
5401        if (mExtras == null) {
5402            mExtras = new Bundle();
5403        }
5404        mExtras.putIntegerArrayList(name, value);
5405        return this;
5406    }
5407
5408    /**
5409     * Add extended data to the intent.  The name must include a package
5410     * prefix, for example the app com.android.contacts would use names
5411     * like "com.android.contacts.ShowAll".
5412     *
5413     * @param name The name of the extra data, with package prefix.
5414     * @param value The ArrayList<String> data value.
5415     *
5416     * @return Returns the same Intent object, for chaining multiple calls
5417     * into a single statement.
5418     *
5419     * @see #putExtras
5420     * @see #removeExtra
5421     * @see #getStringArrayListExtra(String)
5422     */
5423    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
5424        if (mExtras == null) {
5425            mExtras = new Bundle();
5426        }
5427        mExtras.putStringArrayList(name, value);
5428        return this;
5429    }
5430
5431    /**
5432     * Add extended data to the intent.  The name must include a package
5433     * prefix, for example the app com.android.contacts would use names
5434     * like "com.android.contacts.ShowAll".
5435     *
5436     * @param name The name of the extra data, with package prefix.
5437     * @param value The ArrayList<CharSequence> data value.
5438     *
5439     * @return Returns the same Intent object, for chaining multiple calls
5440     * into a single statement.
5441     *
5442     * @see #putExtras
5443     * @see #removeExtra
5444     * @see #getCharSequenceArrayListExtra(String)
5445     */
5446    public Intent putCharSequenceArrayListExtra(String name, ArrayList<CharSequence> value) {
5447        if (mExtras == null) {
5448            mExtras = new Bundle();
5449        }
5450        mExtras.putCharSequenceArrayList(name, value);
5451        return this;
5452    }
5453
5454    /**
5455     * Add extended data to the intent.  The name must include a package
5456     * prefix, for example the app com.android.contacts would use names
5457     * like "com.android.contacts.ShowAll".
5458     *
5459     * @param name The name of the extra data, with package prefix.
5460     * @param value The Serializable data value.
5461     *
5462     * @return Returns the same Intent object, for chaining multiple calls
5463     * into a single statement.
5464     *
5465     * @see #putExtras
5466     * @see #removeExtra
5467     * @see #getSerializableExtra(String)
5468     */
5469    public Intent putExtra(String name, Serializable value) {
5470        if (mExtras == null) {
5471            mExtras = new Bundle();
5472        }
5473        mExtras.putSerializable(name, value);
5474        return this;
5475    }
5476
5477    /**
5478     * Add extended data to the intent.  The name must include a package
5479     * prefix, for example the app com.android.contacts would use names
5480     * like "com.android.contacts.ShowAll".
5481     *
5482     * @param name The name of the extra data, with package prefix.
5483     * @param value The boolean array data value.
5484     *
5485     * @return Returns the same Intent object, for chaining multiple calls
5486     * into a single statement.
5487     *
5488     * @see #putExtras
5489     * @see #removeExtra
5490     * @see #getBooleanArrayExtra(String)
5491     */
5492    public Intent putExtra(String name, boolean[] value) {
5493        if (mExtras == null) {
5494            mExtras = new Bundle();
5495        }
5496        mExtras.putBooleanArray(name, value);
5497        return this;
5498    }
5499
5500    /**
5501     * Add extended data to the intent.  The name must include a package
5502     * prefix, for example the app com.android.contacts would use names
5503     * like "com.android.contacts.ShowAll".
5504     *
5505     * @param name The name of the extra data, with package prefix.
5506     * @param value The byte array data value.
5507     *
5508     * @return Returns the same Intent object, for chaining multiple calls
5509     * into a single statement.
5510     *
5511     * @see #putExtras
5512     * @see #removeExtra
5513     * @see #getByteArrayExtra(String)
5514     */
5515    public Intent putExtra(String name, byte[] value) {
5516        if (mExtras == null) {
5517            mExtras = new Bundle();
5518        }
5519        mExtras.putByteArray(name, value);
5520        return this;
5521    }
5522
5523    /**
5524     * Add extended data to the intent.  The name must include a package
5525     * prefix, for example the app com.android.contacts would use names
5526     * like "com.android.contacts.ShowAll".
5527     *
5528     * @param name The name of the extra data, with package prefix.
5529     * @param value The short array data value.
5530     *
5531     * @return Returns the same Intent object, for chaining multiple calls
5532     * into a single statement.
5533     *
5534     * @see #putExtras
5535     * @see #removeExtra
5536     * @see #getShortArrayExtra(String)
5537     */
5538    public Intent putExtra(String name, short[] value) {
5539        if (mExtras == null) {
5540            mExtras = new Bundle();
5541        }
5542        mExtras.putShortArray(name, value);
5543        return this;
5544    }
5545
5546    /**
5547     * Add extended data to the intent.  The name must include a package
5548     * prefix, for example the app com.android.contacts would use names
5549     * like "com.android.contacts.ShowAll".
5550     *
5551     * @param name The name of the extra data, with package prefix.
5552     * @param value The char array data value.
5553     *
5554     * @return Returns the same Intent object, for chaining multiple calls
5555     * into a single statement.
5556     *
5557     * @see #putExtras
5558     * @see #removeExtra
5559     * @see #getCharArrayExtra(String)
5560     */
5561    public Intent putExtra(String name, char[] value) {
5562        if (mExtras == null) {
5563            mExtras = new Bundle();
5564        }
5565        mExtras.putCharArray(name, value);
5566        return this;
5567    }
5568
5569    /**
5570     * Add extended data to the intent.  The name must include a package
5571     * prefix, for example the app com.android.contacts would use names
5572     * like "com.android.contacts.ShowAll".
5573     *
5574     * @param name The name of the extra data, with package prefix.
5575     * @param value The int array data value.
5576     *
5577     * @return Returns the same Intent object, for chaining multiple calls
5578     * into a single statement.
5579     *
5580     * @see #putExtras
5581     * @see #removeExtra
5582     * @see #getIntArrayExtra(String)
5583     */
5584    public Intent putExtra(String name, int[] value) {
5585        if (mExtras == null) {
5586            mExtras = new Bundle();
5587        }
5588        mExtras.putIntArray(name, value);
5589        return this;
5590    }
5591
5592    /**
5593     * Add extended data to the intent.  The name must include a package
5594     * prefix, for example the app com.android.contacts would use names
5595     * like "com.android.contacts.ShowAll".
5596     *
5597     * @param name The name of the extra data, with package prefix.
5598     * @param value The byte array data value.
5599     *
5600     * @return Returns the same Intent object, for chaining multiple calls
5601     * into a single statement.
5602     *
5603     * @see #putExtras
5604     * @see #removeExtra
5605     * @see #getLongArrayExtra(String)
5606     */
5607    public Intent putExtra(String name, long[] value) {
5608        if (mExtras == null) {
5609            mExtras = new Bundle();
5610        }
5611        mExtras.putLongArray(name, value);
5612        return this;
5613    }
5614
5615    /**
5616     * Add extended data to the intent.  The name must include a package
5617     * prefix, for example the app com.android.contacts would use names
5618     * like "com.android.contacts.ShowAll".
5619     *
5620     * @param name The name of the extra data, with package prefix.
5621     * @param value The float array data value.
5622     *
5623     * @return Returns the same Intent object, for chaining multiple calls
5624     * into a single statement.
5625     *
5626     * @see #putExtras
5627     * @see #removeExtra
5628     * @see #getFloatArrayExtra(String)
5629     */
5630    public Intent putExtra(String name, float[] value) {
5631        if (mExtras == null) {
5632            mExtras = new Bundle();
5633        }
5634        mExtras.putFloatArray(name, value);
5635        return this;
5636    }
5637
5638    /**
5639     * Add extended data to the intent.  The name must include a package
5640     * prefix, for example the app com.android.contacts would use names
5641     * like "com.android.contacts.ShowAll".
5642     *
5643     * @param name The name of the extra data, with package prefix.
5644     * @param value The double array data value.
5645     *
5646     * @return Returns the same Intent object, for chaining multiple calls
5647     * into a single statement.
5648     *
5649     * @see #putExtras
5650     * @see #removeExtra
5651     * @see #getDoubleArrayExtra(String)
5652     */
5653    public Intent putExtra(String name, double[] value) {
5654        if (mExtras == null) {
5655            mExtras = new Bundle();
5656        }
5657        mExtras.putDoubleArray(name, value);
5658        return this;
5659    }
5660
5661    /**
5662     * Add extended data to the intent.  The name must include a package
5663     * prefix, for example the app com.android.contacts would use names
5664     * like "com.android.contacts.ShowAll".
5665     *
5666     * @param name The name of the extra data, with package prefix.
5667     * @param value The String array data value.
5668     *
5669     * @return Returns the same Intent object, for chaining multiple calls
5670     * into a single statement.
5671     *
5672     * @see #putExtras
5673     * @see #removeExtra
5674     * @see #getStringArrayExtra(String)
5675     */
5676    public Intent putExtra(String name, String[] value) {
5677        if (mExtras == null) {
5678            mExtras = new Bundle();
5679        }
5680        mExtras.putStringArray(name, value);
5681        return this;
5682    }
5683
5684    /**
5685     * Add extended data to the intent.  The name must include a package
5686     * prefix, for example the app com.android.contacts would use names
5687     * like "com.android.contacts.ShowAll".
5688     *
5689     * @param name The name of the extra data, with package prefix.
5690     * @param value The CharSequence array data value.
5691     *
5692     * @return Returns the same Intent object, for chaining multiple calls
5693     * into a single statement.
5694     *
5695     * @see #putExtras
5696     * @see #removeExtra
5697     * @see #getCharSequenceArrayExtra(String)
5698     */
5699    public Intent putExtra(String name, CharSequence[] value) {
5700        if (mExtras == null) {
5701            mExtras = new Bundle();
5702        }
5703        mExtras.putCharSequenceArray(name, value);
5704        return this;
5705    }
5706
5707    /**
5708     * Add extended data to the intent.  The name must include a package
5709     * prefix, for example the app com.android.contacts would use names
5710     * like "com.android.contacts.ShowAll".
5711     *
5712     * @param name The name of the extra data, with package prefix.
5713     * @param value The Bundle data value.
5714     *
5715     * @return Returns the same Intent object, for chaining multiple calls
5716     * into a single statement.
5717     *
5718     * @see #putExtras
5719     * @see #removeExtra
5720     * @see #getBundleExtra(String)
5721     */
5722    public Intent putExtra(String name, Bundle value) {
5723        if (mExtras == null) {
5724            mExtras = new Bundle();
5725        }
5726        mExtras.putBundle(name, value);
5727        return this;
5728    }
5729
5730    /**
5731     * Add extended data to the intent.  The name must include a package
5732     * prefix, for example the app com.android.contacts would use names
5733     * like "com.android.contacts.ShowAll".
5734     *
5735     * @param name The name of the extra data, with package prefix.
5736     * @param value The IBinder data value.
5737     *
5738     * @return Returns the same Intent object, for chaining multiple calls
5739     * into a single statement.
5740     *
5741     * @see #putExtras
5742     * @see #removeExtra
5743     * @see #getIBinderExtra(String)
5744     *
5745     * @deprecated
5746     * @hide
5747     */
5748    @Deprecated
5749    public Intent putExtra(String name, IBinder value) {
5750        if (mExtras == null) {
5751            mExtras = new Bundle();
5752        }
5753        mExtras.putIBinder(name, value);
5754        return this;
5755    }
5756
5757    /**
5758     * Copy all extras in 'src' in to this intent.
5759     *
5760     * @param src Contains the extras to copy.
5761     *
5762     * @see #putExtra
5763     */
5764    public Intent putExtras(Intent src) {
5765        if (src.mExtras != null) {
5766            if (mExtras == null) {
5767                mExtras = new Bundle(src.mExtras);
5768            } else {
5769                mExtras.putAll(src.mExtras);
5770            }
5771        }
5772        return this;
5773    }
5774
5775    /**
5776     * Add a set of extended data to the intent.  The keys must include a package
5777     * prefix, for example the app com.android.contacts would use names
5778     * like "com.android.contacts.ShowAll".
5779     *
5780     * @param extras The Bundle of extras to add to this intent.
5781     *
5782     * @see #putExtra
5783     * @see #removeExtra
5784     */
5785    public Intent putExtras(Bundle extras) {
5786        if (mExtras == null) {
5787            mExtras = new Bundle();
5788        }
5789        mExtras.putAll(extras);
5790        return this;
5791    }
5792
5793    /**
5794     * Completely replace the extras in the Intent with the extras in the
5795     * given Intent.
5796     *
5797     * @param src The exact extras contained in this Intent are copied
5798     * into the target intent, replacing any that were previously there.
5799     */
5800    public Intent replaceExtras(Intent src) {
5801        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
5802        return this;
5803    }
5804
5805    /**
5806     * Completely replace the extras in the Intent with the given Bundle of
5807     * extras.
5808     *
5809     * @param extras The new set of extras in the Intent, or null to erase
5810     * all extras.
5811     */
5812    public Intent replaceExtras(Bundle extras) {
5813        mExtras = extras != null ? new Bundle(extras) : null;
5814        return this;
5815    }
5816
5817    /**
5818     * Remove extended data from the intent.
5819     *
5820     * @see #putExtra
5821     */
5822    public void removeExtra(String name) {
5823        if (mExtras != null) {
5824            mExtras.remove(name);
5825            if (mExtras.size() == 0) {
5826                mExtras = null;
5827            }
5828        }
5829    }
5830
5831    /**
5832     * Set special flags controlling how this intent is handled.  Most values
5833     * here depend on the type of component being executed by the Intent,
5834     * specifically the FLAG_ACTIVITY_* flags are all for use with
5835     * {@link Context#startActivity Context.startActivity()} and the
5836     * FLAG_RECEIVER_* flags are all for use with
5837     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
5838     *
5839     * <p>See the
5840     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
5841     * Stack</a> documentation for important information on how some of these options impact
5842     * the behavior of your application.
5843     *
5844     * @param flags The desired flags.
5845     *
5846     * @return Returns the same Intent object, for chaining multiple calls
5847     * into a single statement.
5848     *
5849     * @see #getFlags
5850     * @see #addFlags
5851     *
5852     * @see #FLAG_GRANT_READ_URI_PERMISSION
5853     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
5854     * @see #FLAG_DEBUG_LOG_RESOLUTION
5855     * @see #FLAG_FROM_BACKGROUND
5856     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
5857     * @see #FLAG_ACTIVITY_CLEAR_TASK
5858     * @see #FLAG_ACTIVITY_CLEAR_TOP
5859     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
5860     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
5861     * @see #FLAG_ACTIVITY_FORWARD_RESULT
5862     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
5863     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
5864     * @see #FLAG_ACTIVITY_NEW_TASK
5865     * @see #FLAG_ACTIVITY_NO_ANIMATION
5866     * @see #FLAG_ACTIVITY_NO_HISTORY
5867     * @see #FLAG_ACTIVITY_NO_USER_ACTION
5868     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
5869     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
5870     * @see #FLAG_ACTIVITY_REORDER_TO_FRONT
5871     * @see #FLAG_ACTIVITY_SINGLE_TOP
5872     * @see #FLAG_ACTIVITY_TASK_ON_HOME
5873     * @see #FLAG_RECEIVER_REGISTERED_ONLY
5874     */
5875    public Intent setFlags(int flags) {
5876        mFlags = flags;
5877        return this;
5878    }
5879
5880    /**
5881     * Add additional flags to the intent (or with existing flags
5882     * value).
5883     *
5884     * @param flags The new flags to set.
5885     *
5886     * @return Returns the same Intent object, for chaining multiple calls
5887     * into a single statement.
5888     *
5889     * @see #setFlags
5890     */
5891    public Intent addFlags(int flags) {
5892        mFlags |= flags;
5893        return this;
5894    }
5895
5896    /**
5897     * (Usually optional) Set an explicit application package name that limits
5898     * the components this Intent will resolve to.  If left to the default
5899     * value of null, all components in all applications will considered.
5900     * If non-null, the Intent can only match the components in the given
5901     * application package.
5902     *
5903     * @param packageName The name of the application package to handle the
5904     * intent, or null to allow any application package.
5905     *
5906     * @return Returns the same Intent object, for chaining multiple calls
5907     * into a single statement.
5908     *
5909     * @see #getPackage
5910     * @see #resolveActivity
5911     */
5912    public Intent setPackage(String packageName) {
5913        if (packageName != null && mSelector != null) {
5914            throw new IllegalArgumentException(
5915                    "Can't set package name when selector is already set");
5916        }
5917        mPackage = packageName;
5918        return this;
5919    }
5920
5921    /**
5922     * (Usually optional) Explicitly set the component to handle the intent.
5923     * If left with the default value of null, the system will determine the
5924     * appropriate class to use based on the other fields (action, data,
5925     * type, categories) in the Intent.  If this class is defined, the
5926     * specified class will always be used regardless of the other fields.  You
5927     * should only set this value when you know you absolutely want a specific
5928     * class to be used; otherwise it is better to let the system find the
5929     * appropriate class so that you will respect the installed applications
5930     * and user preferences.
5931     *
5932     * @param component The name of the application component to handle the
5933     * intent, or null to let the system find one for you.
5934     *
5935     * @return Returns the same Intent object, for chaining multiple calls
5936     * into a single statement.
5937     *
5938     * @see #setClass
5939     * @see #setClassName(Context, String)
5940     * @see #setClassName(String, String)
5941     * @see #getComponent
5942     * @see #resolveActivity
5943     */
5944    public Intent setComponent(ComponentName component) {
5945        mComponent = component;
5946        return this;
5947    }
5948
5949    /**
5950     * Convenience for calling {@link #setComponent} with an
5951     * explicit class name.
5952     *
5953     * @param packageContext A Context of the application package implementing
5954     * this class.
5955     * @param className The name of a class inside of the application package
5956     * that will be used as the component for this Intent.
5957     *
5958     * @return Returns the same Intent object, for chaining multiple calls
5959     * into a single statement.
5960     *
5961     * @see #setComponent
5962     * @see #setClass
5963     */
5964    public Intent setClassName(Context packageContext, String className) {
5965        mComponent = new ComponentName(packageContext, className);
5966        return this;
5967    }
5968
5969    /**
5970     * Convenience for calling {@link #setComponent} with an
5971     * explicit application package name and class name.
5972     *
5973     * @param packageName The name of the package implementing the desired
5974     * component.
5975     * @param className The name of a class inside of the application package
5976     * that will be used as the component for this Intent.
5977     *
5978     * @return Returns the same Intent object, for chaining multiple calls
5979     * into a single statement.
5980     *
5981     * @see #setComponent
5982     * @see #setClass
5983     */
5984    public Intent setClassName(String packageName, String className) {
5985        mComponent = new ComponentName(packageName, className);
5986        return this;
5987    }
5988
5989    /**
5990     * Convenience for calling {@link #setComponent(ComponentName)} with the
5991     * name returned by a {@link Class} object.
5992     *
5993     * @param packageContext A Context of the application package implementing
5994     * this class.
5995     * @param cls The class name to set, equivalent to
5996     *            <code>setClassName(context, cls.getName())</code>.
5997     *
5998     * @return Returns the same Intent object, for chaining multiple calls
5999     * into a single statement.
6000     *
6001     * @see #setComponent
6002     */
6003    public Intent setClass(Context packageContext, Class<?> cls) {
6004        mComponent = new ComponentName(packageContext, cls);
6005        return this;
6006    }
6007
6008    /**
6009     * Set the bounds of the sender of this intent, in screen coordinates.  This can be
6010     * used as a hint to the receiver for animations and the like.  Null means that there
6011     * is no source bounds.
6012     */
6013    public void setSourceBounds(Rect r) {
6014        if (r != null) {
6015            mSourceBounds = new Rect(r);
6016        } else {
6017            mSourceBounds = null;
6018        }
6019    }
6020
6021    /**
6022     * Use with {@link #fillIn} to allow the current action value to be
6023     * overwritten, even if it is already set.
6024     */
6025    public static final int FILL_IN_ACTION = 1<<0;
6026
6027    /**
6028     * Use with {@link #fillIn} to allow the current data or type value
6029     * overwritten, even if it is already set.
6030     */
6031    public static final int FILL_IN_DATA = 1<<1;
6032
6033    /**
6034     * Use with {@link #fillIn} to allow the current categories to be
6035     * overwritten, even if they are already set.
6036     */
6037    public static final int FILL_IN_CATEGORIES = 1<<2;
6038
6039    /**
6040     * Use with {@link #fillIn} to allow the current component value to be
6041     * overwritten, even if it is already set.
6042     */
6043    public static final int FILL_IN_COMPONENT = 1<<3;
6044
6045    /**
6046     * Use with {@link #fillIn} to allow the current package value to be
6047     * overwritten, even if it is already set.
6048     */
6049    public static final int FILL_IN_PACKAGE = 1<<4;
6050
6051    /**
6052     * Use with {@link #fillIn} to allow the current bounds rectangle to be
6053     * overwritten, even if it is already set.
6054     */
6055    public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
6056
6057    /**
6058     * Use with {@link #fillIn} to allow the current selector to be
6059     * overwritten, even if it is already set.
6060     */
6061    public static final int FILL_IN_SELECTOR = 1<<6;
6062
6063    /**
6064     * Use with {@link #fillIn} to allow the current ClipData to be
6065     * overwritten, even if it is already set.
6066     */
6067    public static final int FILL_IN_CLIP_DATA = 1<<7;
6068
6069    /**
6070     * Copy the contents of <var>other</var> in to this object, but only
6071     * where fields are not defined by this object.  For purposes of a field
6072     * being defined, the following pieces of data in the Intent are
6073     * considered to be separate fields:
6074     *
6075     * <ul>
6076     * <li> action, as set by {@link #setAction}.
6077     * <li> data Uri and MIME type, as set by {@link #setData(Uri)},
6078     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
6079     * <li> categories, as set by {@link #addCategory}.
6080     * <li> package, as set by {@link #setPackage}.
6081     * <li> component, as set by {@link #setComponent(ComponentName)} or
6082     * related methods.
6083     * <li> source bounds, as set by {@link #setSourceBounds}.
6084     * <li> selector, as set by {@link #setSelector(Intent)}.
6085     * <li> clip data, as set by {@link #setClipData(ClipData)}.
6086     * <li> each top-level name in the associated extras.
6087     * </ul>
6088     *
6089     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
6090     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
6091     * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS},
6092     * {@link #FILL_IN_SELECTOR}, and {@link #FILL_IN_CLIP_DATA} to override
6093     * the restriction where the corresponding field will not be replaced if
6094     * it is already set.
6095     *
6096     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT}
6097     * is explicitly specified.  The selector will only be copied if
6098     * {@link #FILL_IN_SELECTOR} is explicitly specified.
6099     *
6100     * <p>For example, consider Intent A with {data="foo", categories="bar"}
6101     * and Intent B with {action="gotit", data-type="some/thing",
6102     * categories="one","two"}.
6103     *
6104     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
6105     * containing: {action="gotit", data-type="some/thing",
6106     * categories="bar"}.
6107     *
6108     * @param other Another Intent whose values are to be used to fill in
6109     * the current one.
6110     * @param flags Options to control which fields can be filled in.
6111     *
6112     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
6113     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
6114     * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS}, and
6115     * {@link #FILL_IN_SELECTOR} indicating which fields were changed.
6116     */
6117    public int fillIn(Intent other, int flags) {
6118        int changes = 0;
6119        if (other.mAction != null
6120                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
6121            mAction = other.mAction;
6122            changes |= FILL_IN_ACTION;
6123        }
6124        if ((other.mData != null || other.mType != null)
6125                && ((mData == null && mType == null)
6126                        || (flags&FILL_IN_DATA) != 0)) {
6127            mData = other.mData;
6128            mType = other.mType;
6129            changes |= FILL_IN_DATA;
6130        }
6131        if (other.mCategories != null
6132                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
6133            if (other.mCategories != null) {
6134                mCategories = new HashSet<String>(other.mCategories);
6135            }
6136            changes |= FILL_IN_CATEGORIES;
6137        }
6138        if (other.mPackage != null
6139                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
6140            // Only do this if mSelector is not set.
6141            if (mSelector == null) {
6142                mPackage = other.mPackage;
6143                changes |= FILL_IN_PACKAGE;
6144            }
6145        }
6146        // Selector is special: it can only be set if explicitly allowed,
6147        // for the same reason as the component name.
6148        if (other.mSelector != null && (flags&FILL_IN_SELECTOR) != 0) {
6149            if (mPackage == null) {
6150                mSelector = new Intent(other.mSelector);
6151                mPackage = null;
6152                changes |= FILL_IN_SELECTOR;
6153            }
6154        }
6155        if (other.mClipData != null
6156                && (mClipData == null || (flags&FILL_IN_CLIP_DATA) != 0)) {
6157            mClipData = other.mClipData;
6158            changes |= FILL_IN_CLIP_DATA;
6159        }
6160        // Component is special: it can -only- be set if explicitly allowed,
6161        // since otherwise the sender could force the intent somewhere the
6162        // originator didn't intend.
6163        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
6164            mComponent = other.mComponent;
6165            changes |= FILL_IN_COMPONENT;
6166        }
6167        mFlags |= other.mFlags;
6168        if (other.mSourceBounds != null
6169                && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
6170            mSourceBounds = new Rect(other.mSourceBounds);
6171            changes |= FILL_IN_SOURCE_BOUNDS;
6172        }
6173        if (mExtras == null) {
6174            if (other.mExtras != null) {
6175                mExtras = new Bundle(other.mExtras);
6176            }
6177        } else if (other.mExtras != null) {
6178            try {
6179                Bundle newb = new Bundle(other.mExtras);
6180                newb.putAll(mExtras);
6181                mExtras = newb;
6182            } catch (RuntimeException e) {
6183                // Modifying the extras can cause us to unparcel the contents
6184                // of the bundle, and if we do this in the system process that
6185                // may fail.  We really should handle this (i.e., the Bundle
6186                // impl shouldn't be on top of a plain map), but for now just
6187                // ignore it and keep the original contents. :(
6188                Log.w("Intent", "Failure filling in extras", e);
6189            }
6190        }
6191        return changes;
6192    }
6193
6194    /**
6195     * Wrapper class holding an Intent and implementing comparisons on it for
6196     * the purpose of filtering.  The class implements its
6197     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
6198     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
6199     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
6200     * on the wrapped Intent.
6201     */
6202    public static final class FilterComparison {
6203        private final Intent mIntent;
6204        private final int mHashCode;
6205
6206        public FilterComparison(Intent intent) {
6207            mIntent = intent;
6208            mHashCode = intent.filterHashCode();
6209        }
6210
6211        /**
6212         * Return the Intent that this FilterComparison represents.
6213         * @return Returns the Intent held by the FilterComparison.  Do
6214         * not modify!
6215         */
6216        public Intent getIntent() {
6217            return mIntent;
6218        }
6219
6220        @Override
6221        public boolean equals(Object obj) {
6222            if (obj instanceof FilterComparison) {
6223                Intent other = ((FilterComparison)obj).mIntent;
6224                return mIntent.filterEquals(other);
6225            }
6226            return false;
6227        }
6228
6229        @Override
6230        public int hashCode() {
6231            return mHashCode;
6232        }
6233    }
6234
6235    /**
6236     * Determine if two intents are the same for the purposes of intent
6237     * resolution (filtering). That is, if their action, data, type,
6238     * class, and categories are the same.  This does <em>not</em> compare
6239     * any extra data included in the intents.
6240     *
6241     * @param other The other Intent to compare against.
6242     *
6243     * @return Returns true if action, data, type, class, and categories
6244     *         are the same.
6245     */
6246    public boolean filterEquals(Intent other) {
6247        if (other == null) {
6248            return false;
6249        }
6250        if (mAction != other.mAction) {
6251            if (mAction != null) {
6252                if (!mAction.equals(other.mAction)) {
6253                    return false;
6254                }
6255            } else {
6256                if (!other.mAction.equals(mAction)) {
6257                    return false;
6258                }
6259            }
6260        }
6261        if (mData != other.mData) {
6262            if (mData != null) {
6263                if (!mData.equals(other.mData)) {
6264                    return false;
6265                }
6266            } else {
6267                if (!other.mData.equals(mData)) {
6268                    return false;
6269                }
6270            }
6271        }
6272        if (mType != other.mType) {
6273            if (mType != null) {
6274                if (!mType.equals(other.mType)) {
6275                    return false;
6276                }
6277            } else {
6278                if (!other.mType.equals(mType)) {
6279                    return false;
6280                }
6281            }
6282        }
6283        if (mPackage != other.mPackage) {
6284            if (mPackage != null) {
6285                if (!mPackage.equals(other.mPackage)) {
6286                    return false;
6287                }
6288            } else {
6289                if (!other.mPackage.equals(mPackage)) {
6290                    return false;
6291                }
6292            }
6293        }
6294        if (mComponent != other.mComponent) {
6295            if (mComponent != null) {
6296                if (!mComponent.equals(other.mComponent)) {
6297                    return false;
6298                }
6299            } else {
6300                if (!other.mComponent.equals(mComponent)) {
6301                    return false;
6302                }
6303            }
6304        }
6305        if (mCategories != other.mCategories) {
6306            if (mCategories != null) {
6307                if (!mCategories.equals(other.mCategories)) {
6308                    return false;
6309                }
6310            } else {
6311                if (!other.mCategories.equals(mCategories)) {
6312                    return false;
6313                }
6314            }
6315        }
6316
6317        return true;
6318    }
6319
6320    /**
6321     * Generate hash code that matches semantics of filterEquals().
6322     *
6323     * @return Returns the hash value of the action, data, type, class, and
6324     *         categories.
6325     *
6326     * @see #filterEquals
6327     */
6328    public int filterHashCode() {
6329        int code = 0;
6330        if (mAction != null) {
6331            code += mAction.hashCode();
6332        }
6333        if (mData != null) {
6334            code += mData.hashCode();
6335        }
6336        if (mType != null) {
6337            code += mType.hashCode();
6338        }
6339        if (mPackage != null) {
6340            code += mPackage.hashCode();
6341        }
6342        if (mComponent != null) {
6343            code += mComponent.hashCode();
6344        }
6345        if (mCategories != null) {
6346            code += mCategories.hashCode();
6347        }
6348        return code;
6349    }
6350
6351    @Override
6352    public String toString() {
6353        StringBuilder b = new StringBuilder(128);
6354
6355        b.append("Intent { ");
6356        toShortString(b, true, true, true, false);
6357        b.append(" }");
6358
6359        return b.toString();
6360    }
6361
6362    /** @hide */
6363    public String toInsecureString() {
6364        StringBuilder b = new StringBuilder(128);
6365
6366        b.append("Intent { ");
6367        toShortString(b, false, true, true, false);
6368        b.append(" }");
6369
6370        return b.toString();
6371    }
6372
6373    /** @hide */
6374    public String toInsecureStringWithClip() {
6375        StringBuilder b = new StringBuilder(128);
6376
6377        b.append("Intent { ");
6378        toShortString(b, false, true, true, true);
6379        b.append(" }");
6380
6381        return b.toString();
6382    }
6383
6384    /** @hide */
6385    public String toShortString(boolean secure, boolean comp, boolean extras, boolean clip) {
6386        StringBuilder b = new StringBuilder(128);
6387        toShortString(b, secure, comp, extras, clip);
6388        return b.toString();
6389    }
6390
6391    /** @hide */
6392    public void toShortString(StringBuilder b, boolean secure, boolean comp, boolean extras,
6393            boolean clip) {
6394        boolean first = true;
6395        if (mAction != null) {
6396            b.append("act=").append(mAction);
6397            first = false;
6398        }
6399        if (mCategories != null) {
6400            if (!first) {
6401                b.append(' ');
6402            }
6403            first = false;
6404            b.append("cat=[");
6405            Iterator<String> i = mCategories.iterator();
6406            boolean didone = false;
6407            while (i.hasNext()) {
6408                if (didone) b.append(",");
6409                didone = true;
6410                b.append(i.next());
6411            }
6412            b.append("]");
6413        }
6414        if (mData != null) {
6415            if (!first) {
6416                b.append(' ');
6417            }
6418            first = false;
6419            b.append("dat=");
6420            if (secure) {
6421                b.append(mData.toSafeString());
6422            } else {
6423                b.append(mData);
6424            }
6425        }
6426        if (mType != null) {
6427            if (!first) {
6428                b.append(' ');
6429            }
6430            first = false;
6431            b.append("typ=").append(mType);
6432        }
6433        if (mFlags != 0) {
6434            if (!first) {
6435                b.append(' ');
6436            }
6437            first = false;
6438            b.append("flg=0x").append(Integer.toHexString(mFlags));
6439        }
6440        if (mPackage != null) {
6441            if (!first) {
6442                b.append(' ');
6443            }
6444            first = false;
6445            b.append("pkg=").append(mPackage);
6446        }
6447        if (comp && mComponent != null) {
6448            if (!first) {
6449                b.append(' ');
6450            }
6451            first = false;
6452            b.append("cmp=").append(mComponent.flattenToShortString());
6453        }
6454        if (mSourceBounds != null) {
6455            if (!first) {
6456                b.append(' ');
6457            }
6458            first = false;
6459            b.append("bnds=").append(mSourceBounds.toShortString());
6460        }
6461        if (mClipData != null) {
6462            if (!first) {
6463                b.append(' ');
6464            }
6465            first = false;
6466            if (clip) {
6467                b.append("clip={");
6468                mClipData.toShortString(b);
6469                b.append('}');
6470            } else {
6471                b.append("(has clip)");
6472            }
6473        }
6474        if (extras && mExtras != null) {
6475            if (!first) {
6476                b.append(' ');
6477            }
6478            first = false;
6479            b.append("(has extras)");
6480        }
6481        if (mSelector != null) {
6482            b.append(" sel={");
6483            mSelector.toShortString(b, secure, comp, extras, clip);
6484            b.append("}");
6485        }
6486    }
6487
6488    /**
6489     * Call {@link #toUri} with 0 flags.
6490     * @deprecated Use {@link #toUri} instead.
6491     */
6492    @Deprecated
6493    public String toURI() {
6494        return toUri(0);
6495    }
6496
6497    /**
6498     * Convert this Intent into a String holding a URI representation of it.
6499     * The returned URI string has been properly URI encoded, so it can be
6500     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
6501     * Intent's data as the base URI, with an additional fragment describing
6502     * the action, categories, type, flags, package, component, and extras.
6503     *
6504     * <p>You can convert the returned string back to an Intent with
6505     * {@link #getIntent}.
6506     *
6507     * @param flags Additional operating flags.  Either 0 or
6508     * {@link #URI_INTENT_SCHEME}.
6509     *
6510     * @return Returns a URI encoding URI string describing the entire contents
6511     * of the Intent.
6512     */
6513    public String toUri(int flags) {
6514        StringBuilder uri = new StringBuilder(128);
6515        String scheme = null;
6516        if (mData != null) {
6517            String data = mData.toString();
6518            if ((flags&URI_INTENT_SCHEME) != 0) {
6519                final int N = data.length();
6520                for (int i=0; i<N; i++) {
6521                    char c = data.charAt(i);
6522                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
6523                            || c == '.' || c == '-') {
6524                        continue;
6525                    }
6526                    if (c == ':' && i > 0) {
6527                        // Valid scheme.
6528                        scheme = data.substring(0, i);
6529                        uri.append("intent:");
6530                        data = data.substring(i+1);
6531                        break;
6532                    }
6533
6534                    // No scheme.
6535                    break;
6536                }
6537            }
6538            uri.append(data);
6539
6540        } else if ((flags&URI_INTENT_SCHEME) != 0) {
6541            uri.append("intent:");
6542        }
6543
6544        uri.append("#Intent;");
6545
6546        toUriInner(uri, scheme, flags);
6547        if (mSelector != null) {
6548            uri.append("SEL;");
6549            // Note that for now we are not going to try to handle the
6550            // data part; not clear how to represent this as a URI, and
6551            // not much utility in it.
6552            mSelector.toUriInner(uri, null, flags);
6553        }
6554
6555        uri.append("end");
6556
6557        return uri.toString();
6558    }
6559
6560    private void toUriInner(StringBuilder uri, String scheme, int flags) {
6561        if (scheme != null) {
6562            uri.append("scheme=").append(scheme).append(';');
6563        }
6564        if (mAction != null) {
6565            uri.append("action=").append(Uri.encode(mAction)).append(';');
6566        }
6567        if (mCategories != null) {
6568            for (String category : mCategories) {
6569                uri.append("category=").append(Uri.encode(category)).append(';');
6570            }
6571        }
6572        if (mType != null) {
6573            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
6574        }
6575        if (mFlags != 0) {
6576            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
6577        }
6578        if (mPackage != null) {
6579            uri.append("package=").append(Uri.encode(mPackage)).append(';');
6580        }
6581        if (mComponent != null) {
6582            uri.append("component=").append(Uri.encode(
6583                    mComponent.flattenToShortString(), "/")).append(';');
6584        }
6585        if (mSourceBounds != null) {
6586            uri.append("sourceBounds=")
6587                    .append(Uri.encode(mSourceBounds.flattenToString()))
6588                    .append(';');
6589        }
6590        if (mExtras != null) {
6591            for (String key : mExtras.keySet()) {
6592                final Object value = mExtras.get(key);
6593                char entryType =
6594                        value instanceof String    ? 'S' :
6595                        value instanceof Boolean   ? 'B' :
6596                        value instanceof Byte      ? 'b' :
6597                        value instanceof Character ? 'c' :
6598                        value instanceof Double    ? 'd' :
6599                        value instanceof Float     ? 'f' :
6600                        value instanceof Integer   ? 'i' :
6601                        value instanceof Long      ? 'l' :
6602                        value instanceof Short     ? 's' :
6603                        '\0';
6604
6605                if (entryType != '\0') {
6606                    uri.append(entryType);
6607                    uri.append('.');
6608                    uri.append(Uri.encode(key));
6609                    uri.append('=');
6610                    uri.append(Uri.encode(value.toString()));
6611                    uri.append(';');
6612                }
6613            }
6614        }
6615    }
6616
6617    public int describeContents() {
6618        return (mExtras != null) ? mExtras.describeContents() : 0;
6619    }
6620
6621    public void writeToParcel(Parcel out, int flags) {
6622        out.writeString(mAction);
6623        Uri.writeToParcel(out, mData);
6624        out.writeString(mType);
6625        out.writeInt(mFlags);
6626        out.writeString(mPackage);
6627        ComponentName.writeToParcel(mComponent, out);
6628
6629        if (mSourceBounds != null) {
6630            out.writeInt(1);
6631            mSourceBounds.writeToParcel(out, flags);
6632        } else {
6633            out.writeInt(0);
6634        }
6635
6636        if (mCategories != null) {
6637            out.writeInt(mCategories.size());
6638            for (String category : mCategories) {
6639                out.writeString(category);
6640            }
6641        } else {
6642            out.writeInt(0);
6643        }
6644
6645        if (mSelector != null) {
6646            out.writeInt(1);
6647            mSelector.writeToParcel(out, flags);
6648        } else {
6649            out.writeInt(0);
6650        }
6651
6652        if (mClipData != null) {
6653            out.writeInt(1);
6654            mClipData.writeToParcel(out, flags);
6655        } else {
6656            out.writeInt(0);
6657        }
6658
6659        out.writeBundle(mExtras);
6660    }
6661
6662    public static final Parcelable.Creator<Intent> CREATOR
6663            = new Parcelable.Creator<Intent>() {
6664        public Intent createFromParcel(Parcel in) {
6665            return new Intent(in);
6666        }
6667        public Intent[] newArray(int size) {
6668            return new Intent[size];
6669        }
6670    };
6671
6672    /** @hide */
6673    protected Intent(Parcel in) {
6674        readFromParcel(in);
6675    }
6676
6677    public void readFromParcel(Parcel in) {
6678        setAction(in.readString());
6679        mData = Uri.CREATOR.createFromParcel(in);
6680        mType = in.readString();
6681        mFlags = in.readInt();
6682        mPackage = in.readString();
6683        mComponent = ComponentName.readFromParcel(in);
6684
6685        if (in.readInt() != 0) {
6686            mSourceBounds = Rect.CREATOR.createFromParcel(in);
6687        }
6688
6689        int N = in.readInt();
6690        if (N > 0) {
6691            mCategories = new HashSet<String>();
6692            int i;
6693            for (i=0; i<N; i++) {
6694                mCategories.add(in.readString().intern());
6695            }
6696        } else {
6697            mCategories = null;
6698        }
6699
6700        if (in.readInt() != 0) {
6701            mSelector = new Intent(in);
6702        }
6703
6704        if (in.readInt() != 0) {
6705            mClipData = new ClipData(in);
6706        }
6707
6708        mExtras = in.readBundle();
6709    }
6710
6711    /**
6712     * Parses the "intent" element (and its children) from XML and instantiates
6713     * an Intent object.  The given XML parser should be located at the tag
6714     * where parsing should start (often named "intent"), from which the
6715     * basic action, data, type, and package and class name will be
6716     * retrieved.  The function will then parse in to any child elements,
6717     * looking for <category android:name="xxx"> tags to add categories and
6718     * <extra android:name="xxx" android:value="yyy"> to attach extra data
6719     * to the intent.
6720     *
6721     * @param resources The Resources to use when inflating resources.
6722     * @param parser The XML parser pointing at an "intent" tag.
6723     * @param attrs The AttributeSet interface for retrieving extended
6724     * attribute data at the current <var>parser</var> location.
6725     * @return An Intent object matching the XML data.
6726     * @throws XmlPullParserException If there was an XML parsing error.
6727     * @throws IOException If there was an I/O error.
6728     */
6729    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
6730            throws XmlPullParserException, IOException {
6731        Intent intent = new Intent();
6732
6733        TypedArray sa = resources.obtainAttributes(attrs,
6734                com.android.internal.R.styleable.Intent);
6735
6736        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
6737
6738        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
6739        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
6740        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
6741
6742        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
6743        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
6744        if (packageName != null && className != null) {
6745            intent.setComponent(new ComponentName(packageName, className));
6746        }
6747
6748        sa.recycle();
6749
6750        int outerDepth = parser.getDepth();
6751        int type;
6752        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
6753               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
6754            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
6755                continue;
6756            }
6757
6758            String nodeName = parser.getName();
6759            if (nodeName.equals("category")) {
6760                sa = resources.obtainAttributes(attrs,
6761                        com.android.internal.R.styleable.IntentCategory);
6762                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
6763                sa.recycle();
6764
6765                if (cat != null) {
6766                    intent.addCategory(cat);
6767                }
6768                XmlUtils.skipCurrentTag(parser);
6769
6770            } else if (nodeName.equals("extra")) {
6771                if (intent.mExtras == null) {
6772                    intent.mExtras = new Bundle();
6773                }
6774                resources.parseBundleExtra("extra", attrs, intent.mExtras);
6775                XmlUtils.skipCurrentTag(parser);
6776
6777            } else {
6778                XmlUtils.skipCurrentTag(parser);
6779            }
6780        }
6781
6782        return intent;
6783    }
6784
6785    /**
6786     * Normalize a MIME data type.
6787     *
6788     * <p>A normalized MIME type has white-space trimmed,
6789     * content-type parameters removed, and is lower-case.
6790     * This aligns the type with Android best practices for
6791     * intent filtering.
6792     *
6793     * <p>For example, "text/plain; charset=utf-8" becomes "text/plain".
6794     * "text/x-vCard" becomes "text/x-vcard".
6795     *
6796     * <p>All MIME types received from outside Android (such as user input,
6797     * or external sources like Bluetooth, NFC, or the Internet) should
6798     * be normalized before they are used to create an Intent.
6799     *
6800     * @param type MIME data type to normalize
6801     * @return normalized MIME data type, or null if the input was null
6802     * @see {@link #setType}
6803     * @see {@link #setTypeAndNormalize}
6804     */
6805    public static String normalizeMimeType(String type) {
6806        if (type == null) {
6807            return null;
6808        }
6809
6810        type = type.trim().toLowerCase(Locale.US);
6811
6812        final int semicolonIndex = type.indexOf(';');
6813        if (semicolonIndex != -1) {
6814            type = type.substring(0, semicolonIndex);
6815        }
6816        return type;
6817    }
6818
6819    /**
6820     * Migrate any {@link #EXTRA_STREAM} in {@link #ACTION_SEND} and
6821     * {@link #ACTION_SEND_MULTIPLE} to {@link ClipData}. Also inspects nested
6822     * intents in {@link #ACTION_CHOOSER}.
6823     *
6824     * @return Whether any contents were migrated.
6825     * @hide
6826     */
6827    public boolean migrateExtraStreamToClipData() {
6828        // Refuse to touch if extras already parcelled
6829        if (mExtras != null && mExtras.isParcelled()) return false;
6830
6831        // Bail when someone already gave us ClipData
6832        if (getClipData() != null) return false;
6833
6834        final String action = getAction();
6835        if (ACTION_CHOOSER.equals(action)) {
6836            try {
6837                // Inspect target intent to see if we need to migrate
6838                final Intent target = getParcelableExtra(EXTRA_INTENT);
6839                if (target != null && target.migrateExtraStreamToClipData()) {
6840                    // Since we migrated in child, we need to promote ClipData
6841                    // and flags to ourselves to grant.
6842                    setClipData(target.getClipData());
6843                    addFlags(target.getFlags()
6844                            & (FLAG_GRANT_READ_URI_PERMISSION | FLAG_GRANT_WRITE_URI_PERMISSION));
6845                    return true;
6846                } else {
6847                    return false;
6848                }
6849            } catch (ClassCastException e) {
6850            }
6851
6852        } else if (ACTION_SEND.equals(action)) {
6853            try {
6854                final Uri stream = getParcelableExtra(EXTRA_STREAM);
6855                final CharSequence text = getCharSequenceExtra(EXTRA_TEXT);
6856                final String htmlText = getStringExtra(EXTRA_HTML_TEXT);
6857                if (stream != null || text != null || htmlText != null) {
6858                    final ClipData clipData = new ClipData(
6859                            null, new String[] { getType() },
6860                            new ClipData.Item(text, htmlText, null, stream));
6861                    setClipData(clipData);
6862                    addFlags(FLAG_GRANT_READ_URI_PERMISSION);
6863                    return true;
6864                }
6865            } catch (ClassCastException e) {
6866            }
6867
6868        } else if (ACTION_SEND_MULTIPLE.equals(action)) {
6869            try {
6870                final ArrayList<Uri> streams = getParcelableArrayListExtra(EXTRA_STREAM);
6871                final ArrayList<CharSequence> texts = getCharSequenceArrayListExtra(EXTRA_TEXT);
6872                final ArrayList<String> htmlTexts = getStringArrayListExtra(EXTRA_HTML_TEXT);
6873                int num = -1;
6874                if (streams != null) {
6875                    num = streams.size();
6876                }
6877                if (texts != null) {
6878                    if (num >= 0 && num != texts.size()) {
6879                        // Wha...!  F- you.
6880                        return false;
6881                    }
6882                    num = texts.size();
6883                }
6884                if (htmlTexts != null) {
6885                    if (num >= 0 && num != htmlTexts.size()) {
6886                        // Wha...!  F- you.
6887                        return false;
6888                    }
6889                    num = htmlTexts.size();
6890                }
6891                if (num > 0) {
6892                    final ClipData clipData = new ClipData(
6893                            null, new String[] { getType() },
6894                            makeClipItem(streams, texts, htmlTexts, 0));
6895
6896                    for (int i = 1; i < num; i++) {
6897                        clipData.addItem(makeClipItem(streams, texts, htmlTexts, i));
6898                    }
6899
6900                    setClipData(clipData);
6901                    addFlags(FLAG_GRANT_READ_URI_PERMISSION);
6902                    return true;
6903                }
6904            } catch (ClassCastException e) {
6905            }
6906        }
6907
6908        return false;
6909    }
6910
6911    private static ClipData.Item makeClipItem(ArrayList<Uri> streams, ArrayList<CharSequence> texts,
6912            ArrayList<String> htmlTexts, int which) {
6913        Uri uri = streams != null ? streams.get(which) : null;
6914        CharSequence text = texts != null ? texts.get(which) : null;
6915        String htmlText = htmlTexts != null ? htmlTexts.get(which) : null;
6916        return new ClipData.Item(text, htmlText, null, uri);
6917    }
6918}
6919