Intent.java revision df2e92a535e19c00edd37318d974dab992ccc2c1
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.  An 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     * If the caller can handle multiple returned items (the user performing
921     * multiple selection), then it can specify {@link #EXTRA_ALLOW_MULTIPLE}
922     * to indicate this.
923     * <p>
924     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
925     * that no URI is supplied in the intent, as there are no constraints on
926     * where the returned data originally comes from.  You may also include the
927     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
928     * opened as a stream.  You may use {@link #EXTRA_LOCAL_ONLY} to limit content
929     * selection to local data.  You may use {@link #EXTRA_ALLOW_MULTIPLE} to
930     * allow the user to select multiple items.
931     * <p>
932     * Output: The URI of the item that was picked.  This must be a content:
933     * URI so that any receiver can access it.
934     */
935    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
936    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
937    /**
938     * Activity Action: Dial a number as specified by the data.  This shows a
939     * UI with the number being dialed, allowing the user to explicitly
940     * initiate the call.
941     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
942     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
943     * number.
944     * <p>Output: nothing.
945     */
946    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
947    public static final String ACTION_DIAL = "android.intent.action.DIAL";
948    /**
949     * Activity Action: Perform a call to someone specified by the data.
950     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
951     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
952     * number.
953     * <p>Output: nothing.
954     *
955     * <p>Note: there will be restrictions on which applications can initiate a
956     * call; most applications should use the {@link #ACTION_DIAL}.
957     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
958     * numbers.  Applications can <strong>dial</strong> emergency numbers using
959     * {@link #ACTION_DIAL}, however.
960     */
961    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
962    public static final String ACTION_CALL = "android.intent.action.CALL";
963    /**
964     * Activity Action: Perform a call to an emergency number specified by the
965     * data.
966     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
967     * tel: URI of an explicit phone number.
968     * <p>Output: nothing.
969     * @hide
970     */
971    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
972    /**
973     * Activity action: Perform a call to any number (emergency or not)
974     * specified by the data.
975     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
976     * tel: URI of an explicit phone number.
977     * <p>Output: nothing.
978     * @hide
979     */
980    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
981    /**
982     * Activity Action: Send a message to someone specified by the data.
983     * <p>Input: {@link #getData} is URI describing the target.
984     * <p>Output: nothing.
985     */
986    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
987    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
988    /**
989     * Activity Action: Deliver some data to someone else.  Who the data is
990     * being delivered to is not specified; it is up to the receiver of this
991     * action to ask the user where the data should be sent.
992     * <p>
993     * When launching a SEND intent, you should usually wrap it in a chooser
994     * (through {@link #createChooser}), which will give the proper interface
995     * for the user to pick how to send your data and allow you to specify
996     * a prompt indicating what they are doing.
997     * <p>
998     * Input: {@link #getType} is the MIME type of the data being sent.
999     * get*Extra can have either a {@link #EXTRA_TEXT}
1000     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
1001     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
1002     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
1003     * if the MIME type is unknown (this will only allow senders that can
1004     * handle generic data streams).  If using {@link #EXTRA_TEXT}, you can
1005     * also optionally supply {@link #EXTRA_HTML_TEXT} for clients to retrieve
1006     * your text with HTML formatting.
1007     * <p>
1008     * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data
1009     * being sent can be supplied through {@link #setClipData(ClipData)}.  This
1010     * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing
1011     * content: URIs and other advanced features of {@link ClipData}.  If
1012     * using this approach, you still must supply the same data through the
1013     * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below
1014     * for compatibility with old applications.  If you don't set a ClipData,
1015     * it will be copied there for you when calling {@link Context#startActivity(Intent)}.
1016     * <p>
1017     * Optional standard extras, which may be interpreted by some recipients as
1018     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
1019     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
1020     * <p>
1021     * Output: nothing.
1022     */
1023    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1024    public static final String ACTION_SEND = "android.intent.action.SEND";
1025    /**
1026     * Activity Action: Deliver multiple data to someone else.
1027     * <p>
1028     * Like {@link #ACTION_SEND}, except the data is multiple.
1029     * <p>
1030     * Input: {@link #getType} is the MIME type of the data being sent.
1031     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
1032     * #EXTRA_STREAM} field, containing the data to be sent.  If using
1033     * {@link #EXTRA_TEXT}, you can also optionally supply {@link #EXTRA_HTML_TEXT}
1034     * for clients to retrieve your text with HTML formatting.
1035     * <p>
1036     * Multiple types are supported, and receivers should handle mixed types
1037     * whenever possible. The right way for the receiver to check them is to
1038     * use the content resolver on each URI. The intent sender should try to
1039     * put the most concrete mime type in the intent type, but it can fall
1040     * back to {@literal <type>/*} or {@literal *}/* as needed.
1041     * <p>
1042     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
1043     * be image/jpg, but if you are sending image/jpg and image/png, then the
1044     * intent's type should be image/*.
1045     * <p>
1046     * As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, the data
1047     * being sent can be supplied through {@link #setClipData(ClipData)}.  This
1048     * allows you to use {@link #FLAG_GRANT_READ_URI_PERMISSION} when sharing
1049     * content: URIs and other advanced features of {@link ClipData}.  If
1050     * using this approach, you still must supply the same data through the
1051     * {@link #EXTRA_TEXT} or {@link #EXTRA_STREAM} fields described below
1052     * for compatibility with old applications.  If you don't set a ClipData,
1053     * it will be copied there for you when calling {@link Context#startActivity(Intent)}.
1054     * <p>
1055     * Optional standard extras, which may be interpreted by some recipients as
1056     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
1057     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
1058     * <p>
1059     * Output: nothing.
1060     */
1061    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1062    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
1063    /**
1064     * Activity Action: Handle an incoming phone call.
1065     * <p>Input: nothing.
1066     * <p>Output: nothing.
1067     */
1068    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1069    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
1070    /**
1071     * Activity Action: Insert an empty item into the given container.
1072     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
1073     * in which to place the data.
1074     * <p>Output: URI of the new data that was created.
1075     */
1076    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1077    public static final String ACTION_INSERT = "android.intent.action.INSERT";
1078    /**
1079     * Activity Action: Create a new item in the given container, initializing it
1080     * from the current contents of the clipboard.
1081     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
1082     * in which to place the data.
1083     * <p>Output: URI of the new data that was created.
1084     */
1085    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1086    public static final String ACTION_PASTE = "android.intent.action.PASTE";
1087    /**
1088     * Activity Action: Delete the given data from its container.
1089     * <p>Input: {@link #getData} is URI of data to be deleted.
1090     * <p>Output: nothing.
1091     */
1092    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1093    public static final String ACTION_DELETE = "android.intent.action.DELETE";
1094    /**
1095     * Activity Action: Run the data, whatever that means.
1096     * <p>Input: ?  (Note: this is currently specific to the test harness.)
1097     * <p>Output: nothing.
1098     */
1099    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1100    public static final String ACTION_RUN = "android.intent.action.RUN";
1101    /**
1102     * Activity Action: Perform a data synchronization.
1103     * <p>Input: ?
1104     * <p>Output: ?
1105     */
1106    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1107    public static final String ACTION_SYNC = "android.intent.action.SYNC";
1108    /**
1109     * Activity Action: Pick an activity given an intent, returning the class
1110     * selected.
1111     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
1112     * used with {@link PackageManager#queryIntentActivities} to determine the
1113     * set of activities from which to pick.
1114     * <p>Output: Class name of the activity that was selected.
1115     */
1116    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1117    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
1118    /**
1119     * Activity Action: Perform a search.
1120     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1121     * is the text to search for.  If empty, simply
1122     * enter your search results Activity with the search UI activated.
1123     * <p>Output: nothing.
1124     */
1125    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1126    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1127    /**
1128     * Activity Action: Start the platform-defined tutorial
1129     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1130     * is the text to search for.  If empty, simply
1131     * enter your search results Activity with the search UI activated.
1132     * <p>Output: nothing.
1133     */
1134    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1135    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1136    /**
1137     * Activity Action: Perform a web search.
1138     * <p>
1139     * Input: {@link android.app.SearchManager#QUERY
1140     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1141     * a url starts with http or https, the site will be opened. If it is plain
1142     * text, Google search will be applied.
1143     * <p>
1144     * Output: nothing.
1145     */
1146    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1147    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1148
1149    /**
1150     * Activity Action: Perform assist action.
1151     * <p>
1152     * Input: {@link #EXTRA_ASSIST_PACKAGE} and {@link #EXTRA_ASSIST_CONTEXT} can provide
1153     * additional optional contextual information about where the user was when they requested
1154     * the assist.
1155     * Output: nothing.
1156     */
1157    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1158    public static final String ACTION_ASSIST = "android.intent.action.ASSIST";
1159
1160    /**
1161     * Activity Action: Perform voice assist action.
1162     * <p>
1163     * Input: {@link #EXTRA_ASSIST_PACKAGE} and {@link #EXTRA_ASSIST_CONTEXT} can provide
1164     * additional optional contextual information about where the user was when they requested
1165     * the voice assist.
1166     * Output: nothing.
1167     * @hide
1168     */
1169    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1170    public static final String ACTION_VOICE_ASSIST = "android.intent.action.VOICE_ASSIST";
1171
1172    /**
1173     * An optional field on {@link #ACTION_ASSIST}
1174     * containing the name of the current foreground application package at the time
1175     * the assist was invoked.
1176     */
1177    public static final String EXTRA_ASSIST_PACKAGE
1178            = "android.intent.extra.ASSIST_PACKAGE";
1179
1180    /**
1181     * An optional field on {@link #ACTION_ASSIST}
1182     * containing additional contextual information supplied by the current
1183     * foreground app at the time of the assist request.  This is a {@link Bundle} of
1184     * additional data.
1185     */
1186    public static final String EXTRA_ASSIST_CONTEXT
1187            = "android.intent.extra.ASSIST_CONTEXT";
1188
1189    /**
1190     * Activity Action: List all available applications
1191     * <p>Input: Nothing.
1192     * <p>Output: nothing.
1193     */
1194    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1195    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1196    /**
1197     * Activity Action: Show settings for choosing wallpaper
1198     * <p>Input: Nothing.
1199     * <p>Output: Nothing.
1200     */
1201    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1202    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1203
1204    /**
1205     * Activity Action: Show activity for reporting a bug.
1206     * <p>Input: Nothing.
1207     * <p>Output: Nothing.
1208     */
1209    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1210    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1211
1212    /**
1213     *  Activity Action: Main entry point for factory tests.  Only used when
1214     *  the device is booting in factory test node.  The implementing package
1215     *  must be installed in the system image.
1216     *  <p>Input: nothing
1217     *  <p>Output: nothing
1218     */
1219    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1220
1221    /**
1222     * Activity Action: The user pressed the "call" button to go to the dialer
1223     * or other appropriate UI for placing a call.
1224     * <p>Input: Nothing.
1225     * <p>Output: Nothing.
1226     */
1227    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1228    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1229
1230    /**
1231     * Activity Action: Start Voice Command.
1232     * <p>Input: Nothing.
1233     * <p>Output: Nothing.
1234     */
1235    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1236    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1237
1238    /**
1239     * Activity Action: Start action associated with long pressing on the
1240     * search key.
1241     * <p>Input: Nothing.
1242     * <p>Output: Nothing.
1243     */
1244    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1245    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1246
1247    /**
1248     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1249     * This intent is delivered to the package which installed the application, usually
1250     * Google Play.
1251     * <p>Input: No data is specified. The bug report is passed in using
1252     * an {@link #EXTRA_BUG_REPORT} field.
1253     * <p>Output: Nothing.
1254     *
1255     * @see #EXTRA_BUG_REPORT
1256     */
1257    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1258    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1259
1260    /**
1261     * Activity Action: Show power usage information to the user.
1262     * <p>Input: Nothing.
1263     * <p>Output: Nothing.
1264     */
1265    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1266    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1267
1268    /**
1269     * Activity Action: Setup wizard to launch after a platform update.  This
1270     * activity should have a string meta-data field associated with it,
1271     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1272     * the platform for setup.  The activity will be launched only if
1273     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1274     * same value.
1275     * <p>Input: Nothing.
1276     * <p>Output: Nothing.
1277     * @hide
1278     */
1279    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1280    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1281
1282    /**
1283     * Activity Action: Show settings for managing network data usage of a
1284     * specific application. Applications should define an activity that offers
1285     * options to control data usage.
1286     */
1287    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1288    public static final String ACTION_MANAGE_NETWORK_USAGE =
1289            "android.intent.action.MANAGE_NETWORK_USAGE";
1290
1291    /**
1292     * Activity Action: Launch application installer.
1293     * <p>
1294     * Input: The data must be a content: or file: URI at which the application
1295     * can be retrieved.  As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1},
1296     * you can also use "package:<package-name>" to install an application for the
1297     * current user that is already installed for another user. You can optionally supply
1298     * {@link #EXTRA_INSTALLER_PACKAGE_NAME}, {@link #EXTRA_NOT_UNKNOWN_SOURCE},
1299     * {@link #EXTRA_ALLOW_REPLACE}, and {@link #EXTRA_RETURN_RESULT}.
1300     * <p>
1301     * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
1302     * succeeded.
1303     *
1304     * @see #EXTRA_INSTALLER_PACKAGE_NAME
1305     * @see #EXTRA_NOT_UNKNOWN_SOURCE
1306     * @see #EXTRA_RETURN_RESULT
1307     */
1308    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1309    public static final String ACTION_INSTALL_PACKAGE = "android.intent.action.INSTALL_PACKAGE";
1310
1311    /**
1312     * Used as a string extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
1313     * package.  Specifies the installer package name; this package will receive the
1314     * {@link #ACTION_APP_ERROR} intent.
1315     */
1316    public static final String EXTRA_INSTALLER_PACKAGE_NAME
1317            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
1318
1319    /**
1320     * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
1321     * package.  Specifies that the application being installed should not be
1322     * treated as coming from an unknown source, but as coming from the app
1323     * invoking the Intent.  For this to work you must start the installer with
1324     * startActivityForResult().
1325     */
1326    public static final String EXTRA_NOT_UNKNOWN_SOURCE
1327            = "android.intent.extra.NOT_UNKNOWN_SOURCE";
1328
1329    /**
1330     * Used as a URI extra field with {@link #ACTION_INSTALL_PACKAGE} and
1331     * {@link #ACTION_VIEW} to indicate the URI from which the local APK in the Intent
1332     * data field originated from.
1333     */
1334    public static final String EXTRA_ORIGINATING_URI
1335            = "android.intent.extra.ORIGINATING_URI";
1336
1337    /**
1338     * Used as a URI extra field with {@link #ACTION_INSTALL_PACKAGE} and
1339     * {@link #ACTION_VIEW} to indicate the HTTP referrer URI associated with the Intent
1340     * data field or {@link #EXTRA_ORIGINATING_URI}.
1341     */
1342    public static final String EXTRA_REFERRER
1343            = "android.intent.extra.REFERRER";
1344
1345    /**
1346     * Used as an int extra field with {@link #ACTION_INSTALL_PACKAGE} and
1347     * {@link} #ACTION_VIEW} to indicate the uid of the package that initiated the install
1348     * @hide
1349     */
1350    public static final String EXTRA_ORIGINATING_UID
1351            = "android.intent.extra.ORIGINATING_UID";
1352
1353    /**
1354     * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} to install a
1355     * package.  Tells the installer UI to skip the confirmation with the user
1356     * if the .apk is replacing an existing one.
1357     * @deprecated As of {@link android.os.Build.VERSION_CODES#JELLY_BEAN}, Android
1358     * will no longer show an interstitial message about updating existing
1359     * applications so this is no longer needed.
1360     */
1361    @Deprecated
1362    public static final String EXTRA_ALLOW_REPLACE
1363            = "android.intent.extra.ALLOW_REPLACE";
1364
1365    /**
1366     * Used as a boolean extra field with {@link #ACTION_INSTALL_PACKAGE} or
1367     * {@link #ACTION_UNINSTALL_PACKAGE}.  Specifies that the installer UI should
1368     * return to the application the result code of the install/uninstall.  The returned result
1369     * code will be {@link android.app.Activity#RESULT_OK} on success or
1370     * {@link android.app.Activity#RESULT_FIRST_USER} on failure.
1371     */
1372    public static final String EXTRA_RETURN_RESULT
1373            = "android.intent.extra.RETURN_RESULT";
1374
1375    /**
1376     * Package manager install result code.  @hide because result codes are not
1377     * yet ready to be exposed.
1378     */
1379    public static final String EXTRA_INSTALL_RESULT
1380            = "android.intent.extra.INSTALL_RESULT";
1381
1382    /**
1383     * Activity Action: Launch application uninstaller.
1384     * <p>
1385     * Input: The data must be a package: URI whose scheme specific part is
1386     * the package name of the current installed package to be uninstalled.
1387     * You can optionally supply {@link #EXTRA_RETURN_RESULT}.
1388     * <p>
1389     * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
1390     * succeeded.
1391     */
1392    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1393    public static final String ACTION_UNINSTALL_PACKAGE = "android.intent.action.UNINSTALL_PACKAGE";
1394
1395    /**
1396     * Specify whether the package should be uninstalled for all users.
1397     * @hide because these should not be part of normal application flow.
1398     */
1399    public static final String EXTRA_UNINSTALL_ALL_USERS
1400            = "android.intent.extra.UNINSTALL_ALL_USERS";
1401
1402    /**
1403     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1404     * describing the last run version of the platform that was setup.
1405     * @hide
1406     */
1407    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1408
1409    // ---------------------------------------------------------------------
1410    // ---------------------------------------------------------------------
1411    // Standard intent broadcast actions (see action variable).
1412
1413    /**
1414     * Broadcast Action: Sent after the screen turns off.
1415     *
1416     * <p class="note">This is a protected intent that can only be sent
1417     * by the system.
1418     */
1419    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1420    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1421    /**
1422     * Broadcast Action: Sent after the screen turns on.
1423     *
1424     * <p class="note">This is a protected intent that can only be sent
1425     * by the system.
1426     */
1427    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1428    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1429
1430    /**
1431     * Broadcast Action: Sent after the system stops dreaming.
1432     *
1433     * <p class="note">This is a protected intent that can only be sent by the system.
1434     * It is only sent to registered receivers.</p>
1435     */
1436    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1437    public static final String ACTION_DREAMING_STOPPED = "android.intent.action.DREAMING_STOPPED";
1438
1439    /**
1440     * Broadcast Action: Sent after the system starts dreaming.
1441     *
1442     * <p class="note">This is a protected intent that can only be sent by the system.
1443     * It is only sent to registered receivers.</p>
1444     */
1445    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1446    public static final String ACTION_DREAMING_STARTED = "android.intent.action.DREAMING_STARTED";
1447
1448    /**
1449     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1450     * keyguard is gone).
1451     *
1452     * <p class="note">This is a protected intent that can only be sent
1453     * by the system.
1454     */
1455    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1456    public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
1457
1458    /**
1459     * Broadcast Action: The current time has changed.  Sent every
1460     * minute.  You can <em>not</em> receive this through components declared
1461     * in manifests, only by exlicitly registering for it with
1462     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1463     * Context.registerReceiver()}.
1464     *
1465     * <p class="note">This is a protected intent that can only be sent
1466     * by the system.
1467     */
1468    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1469    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1470    /**
1471     * Broadcast Action: The time was set.
1472     */
1473    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1474    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1475    /**
1476     * Broadcast Action: The date has changed.
1477     */
1478    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1479    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1480    /**
1481     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1482     * <ul>
1483     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1484     * </ul>
1485     *
1486     * <p class="note">This is a protected intent that can only be sent
1487     * by the system.
1488     */
1489    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1490    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1491    /**
1492     * Clear DNS Cache Action: This is broadcast when networks have changed and old
1493     * DNS entries should be tossed.
1494     * @hide
1495     */
1496    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1497    public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
1498    /**
1499     * Alarm Changed Action: This is broadcast when the AlarmClock
1500     * application's alarm is set or unset.  It is used by the
1501     * AlarmClock application and the StatusBar service.
1502     * @hide
1503     */
1504    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1505    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1506    /**
1507     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1508     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1509     * @hide
1510     */
1511    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1512    public static final String ACTION_SYNC_STATE_CHANGED
1513            = "android.intent.action.SYNC_STATE_CHANGED";
1514    /**
1515     * Broadcast Action: This is broadcast once, after the system has finished
1516     * booting.  It can be used to perform application-specific initialization,
1517     * such as installing alarms.  You must hold the
1518     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1519     * in order to receive this broadcast.
1520     *
1521     * <p class="note">This is a protected intent that can only be sent
1522     * by the system.
1523     */
1524    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1525    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1526    /**
1527     * Broadcast Action: This is broadcast when a user action should request a
1528     * temporary system dialog to dismiss.  Some examples of temporary system
1529     * dialogs are the notification window-shade and the recent tasks dialog.
1530     */
1531    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1532    /**
1533     * Broadcast Action: Trigger the download and eventual installation
1534     * of a package.
1535     * <p>Input: {@link #getData} is the URI of the package file to download.
1536     *
1537     * <p class="note">This is a protected intent that can only be sent
1538     * by the system.
1539     *
1540     * @deprecated This constant has never been used.
1541     */
1542    @Deprecated
1543    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1544    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1545    /**
1546     * Broadcast Action: A new application package has been installed on the
1547     * device. The data contains the name of the package.  Note that the
1548     * newly installed package does <em>not</em> receive this broadcast.
1549     * <p>May include the following extras:
1550     * <ul>
1551     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1552     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1553     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1554     * </ul>
1555     *
1556     * <p class="note">This is a protected intent that can only be sent
1557     * by the system.
1558     */
1559    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1560    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1561    /**
1562     * Broadcast Action: A new version of an application package has been
1563     * installed, replacing an existing version that was previously installed.
1564     * The data contains the name of the package.
1565     * <p>May include the following extras:
1566     * <ul>
1567     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1568     * </ul>
1569     *
1570     * <p class="note">This is a protected intent that can only be sent
1571     * by the system.
1572     */
1573    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1574    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1575    /**
1576     * Broadcast Action: A new version of your application has been installed
1577     * over an existing one.  This is only sent to the application that was
1578     * replaced.  It does not contain any additional data; to receive it, just
1579     * use an intent filter for this action.
1580     *
1581     * <p class="note">This is a protected intent that can only be sent
1582     * by the system.
1583     */
1584    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1585    public static final String ACTION_MY_PACKAGE_REPLACED = "android.intent.action.MY_PACKAGE_REPLACED";
1586    /**
1587     * Broadcast Action: An existing application package has been removed from
1588     * the device.  The data contains the name of the package.  The package
1589     * that is being installed does <em>not</em> receive this Intent.
1590     * <ul>
1591     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1592     * to the package.
1593     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1594     * application -- data and code -- is being removed.
1595     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1596     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1597     * </ul>
1598     *
1599     * <p class="note">This is a protected intent that can only be sent
1600     * by the system.
1601     */
1602    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1603    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1604    /**
1605     * Broadcast Action: An existing application package has been completely
1606     * removed from the device.  The data contains the name of the package.
1607     * This is like {@link #ACTION_PACKAGE_REMOVED}, but only set when
1608     * {@link #EXTRA_DATA_REMOVED} is true and
1609     * {@link #EXTRA_REPLACING} is false of that broadcast.
1610     *
1611     * <ul>
1612     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1613     * to the package.
1614     * </ul>
1615     *
1616     * <p class="note">This is a protected intent that can only be sent
1617     * by the system.
1618     */
1619    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1620    public static final String ACTION_PACKAGE_FULLY_REMOVED
1621            = "android.intent.action.PACKAGE_FULLY_REMOVED";
1622    /**
1623     * Broadcast Action: An existing application package has been changed (e.g.
1624     * a component has been enabled or disabled).  The data contains the name of
1625     * the package.
1626     * <ul>
1627     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1628     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
1629     * of the changed components (or the package name itself).
1630     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
1631     * default action of restarting the application.
1632     * </ul>
1633     *
1634     * <p class="note">This is a protected intent that can only be sent
1635     * by the system.
1636     */
1637    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1638    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1639    /**
1640     * @hide
1641     * Broadcast Action: Ask system services if there is any reason to
1642     * restart the given package.  The data contains the name of the
1643     * package.
1644     * <ul>
1645     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1646     * <li> {@link #EXTRA_PACKAGES} String array of all packages to check.
1647     * </ul>
1648     *
1649     * <p class="note">This is a protected intent that can only be sent
1650     * by the system.
1651     */
1652    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1653    public static final String ACTION_QUERY_PACKAGE_RESTART = "android.intent.action.QUERY_PACKAGE_RESTART";
1654    /**
1655     * Broadcast Action: The user has restarted a package, and all of its
1656     * processes have been killed.  All runtime state
1657     * associated with it (processes, alarms, notifications, etc) should
1658     * be removed.  Note that the restarted package does <em>not</em>
1659     * receive this broadcast.
1660     * The data contains the name of the package.
1661     * <ul>
1662     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1663     * </ul>
1664     *
1665     * <p class="note">This is a protected intent that can only be sent
1666     * by the system.
1667     */
1668    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1669    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1670    /**
1671     * Broadcast Action: The user has cleared the data of a package.  This should
1672     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1673     * its persistent data is erased and this broadcast sent.
1674     * Note that the cleared package does <em>not</em>
1675     * receive this broadcast. The data contains the name of the package.
1676     * <ul>
1677     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1678     * </ul>
1679     *
1680     * <p class="note">This is a protected intent that can only be sent
1681     * by the system.
1682     */
1683    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1684    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1685    /**
1686     * Broadcast Action: A user ID has been removed from the system.  The user
1687     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1688     *
1689     * <p class="note">This is a protected intent that can only be sent
1690     * by the system.
1691     */
1692    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1693    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1694
1695    /**
1696     * Broadcast Action: Sent to the installer package of an application
1697     * when that application is first launched (that is the first time it
1698     * is moved out of the stopped state).  The data contains the name of the package.
1699     *
1700     * <p class="note">This is a protected intent that can only be sent
1701     * by the system.
1702     */
1703    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1704    public static final String ACTION_PACKAGE_FIRST_LAUNCH = "android.intent.action.PACKAGE_FIRST_LAUNCH";
1705
1706    /**
1707     * Broadcast Action: Sent to the system package verifier when a package
1708     * needs to be verified. The data contains the package URI.
1709     * <p class="note">
1710     * This is a protected intent that can only be sent by the system.
1711     * </p>
1712     */
1713    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1714    public static final String ACTION_PACKAGE_NEEDS_VERIFICATION = "android.intent.action.PACKAGE_NEEDS_VERIFICATION";
1715
1716    /**
1717     * Broadcast Action: Sent to the system package verifier when a package is
1718     * verified. The data contains the package URI.
1719     * <p class="note">
1720     * This is a protected intent that can only be sent by the system.
1721     */
1722    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1723    public static final String ACTION_PACKAGE_VERIFIED = "android.intent.action.PACKAGE_VERIFIED";
1724
1725    /**
1726     * Broadcast Action: Resources for a set of packages (which were
1727     * previously unavailable) are currently
1728     * available since the media on which they exist is available.
1729     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1730     * list of packages whose availability changed.
1731     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1732     * list of uids of packages whose availability changed.
1733     * Note that the
1734     * packages in this list do <em>not</em> receive this broadcast.
1735     * The specified set of packages are now available on the system.
1736     * <p>Includes the following extras:
1737     * <ul>
1738     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1739     * whose resources(were previously unavailable) are currently available.
1740     * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the
1741     * packages whose resources(were previously unavailable)
1742     * are  currently available.
1743     * </ul>
1744     *
1745     * <p class="note">This is a protected intent that can only be sent
1746     * by the system.
1747     */
1748    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1749    public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE =
1750        "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
1751
1752    /**
1753     * Broadcast Action: Resources for a set of packages are currently
1754     * unavailable since the media on which they exist is unavailable.
1755     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1756     * list of packages whose availability changed.
1757     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1758     * list of uids of packages whose availability changed.
1759     * The specified set of packages can no longer be
1760     * launched and are practically unavailable on the system.
1761     * <p>Inclues the following extras:
1762     * <ul>
1763     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1764     * whose resources are no longer available.
1765     * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages
1766     * whose resources are no longer available.
1767     * </ul>
1768     *
1769     * <p class="note">This is a protected intent that can only be sent
1770     * by the system.
1771     */
1772    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1773    public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE =
1774        "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE";
1775
1776    /**
1777     * Broadcast Action:  The current system wallpaper has changed.  See
1778     * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
1779     * This should <em>only</em> be used to determine when the wallpaper
1780     * has changed to show the new wallpaper to the user.  You should certainly
1781     * never, in response to this, change the wallpaper or other attributes of
1782     * it such as the suggested size.  That would be crazy, right?  You'd cause
1783     * all kinds of loops, especially if other apps are doing similar things,
1784     * right?  Of course.  So please don't do this.
1785     *
1786     * @deprecated Modern applications should use
1787     * {@link android.view.WindowManager.LayoutParams#FLAG_SHOW_WALLPAPER
1788     * WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER} to have the wallpaper
1789     * shown behind their UI, rather than watching for this broadcast and
1790     * rendering the wallpaper on their own.
1791     */
1792    @Deprecated @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1793    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1794    /**
1795     * Broadcast Action: The current device {@link android.content.res.Configuration}
1796     * (orientation, locale, etc) has changed.  When such a change happens, the
1797     * UIs (view hierarchy) will need to be rebuilt based on this new
1798     * information; for the most part, applications don't need to worry about
1799     * this, because the system will take care of stopping and restarting the
1800     * application to make sure it sees the new changes.  Some system code that
1801     * can not be restarted will need to watch for this action and handle it
1802     * appropriately.
1803     *
1804     * <p class="note">
1805     * You can <em>not</em> receive this through components declared
1806     * in manifests, only by explicitly registering for it with
1807     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1808     * Context.registerReceiver()}.
1809     *
1810     * <p class="note">This is a protected intent that can only be sent
1811     * by the system.
1812     *
1813     * @see android.content.res.Configuration
1814     */
1815    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1816    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1817    /**
1818     * Broadcast Action: The current device's locale has changed.
1819     *
1820     * <p class="note">This is a protected intent that can only be sent
1821     * by the system.
1822     */
1823    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1824    public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
1825    /**
1826     * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
1827     * charging state, level, and other information about the battery.
1828     * See {@link android.os.BatteryManager} for documentation on the
1829     * contents of the Intent.
1830     *
1831     * <p class="note">
1832     * You can <em>not</em> receive this through components declared
1833     * in manifests, only by explicitly registering for it with
1834     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1835     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1836     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1837     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1838     * broadcasts that are sent and can be received through manifest
1839     * receivers.
1840     *
1841     * <p class="note">This is a protected intent that can only be sent
1842     * by the system.
1843     */
1844    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1845    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1846    /**
1847     * Broadcast Action:  Indicates low battery condition on the device.
1848     * This broadcast corresponds to the "Low battery warning" system dialog.
1849     *
1850     * <p class="note">This is a protected intent that can only be sent
1851     * by the system.
1852     */
1853    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1854    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1855    /**
1856     * Broadcast Action:  Indicates the battery is now okay after being low.
1857     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1858     * gone back up to an okay state.
1859     *
1860     * <p class="note">This is a protected intent that can only be sent
1861     * by the system.
1862     */
1863    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1864    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1865    /**
1866     * Broadcast Action:  External power has been connected to the device.
1867     * This is intended for applications that wish to register specifically to this notification.
1868     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1869     * stay active to receive this notification.  This action can be used to implement actions
1870     * that wait until power is available to trigger.
1871     *
1872     * <p class="note">This is a protected intent that can only be sent
1873     * by the system.
1874     */
1875    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1876    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1877    /**
1878     * Broadcast Action:  External power has been removed from the device.
1879     * This is intended for applications that wish to register specifically to this notification.
1880     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1881     * stay active to receive this notification.  This action can be used to implement actions
1882     * that wait until power is available to trigger.
1883     *
1884     * <p class="note">This is a protected intent that can only be sent
1885     * by the system.
1886     */
1887    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1888    public static final String ACTION_POWER_DISCONNECTED =
1889            "android.intent.action.ACTION_POWER_DISCONNECTED";
1890    /**
1891     * Broadcast Action:  Device is shutting down.
1892     * This is broadcast when the device is being shut down (completely turned
1893     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1894     * will proceed and all unsaved data lost.  Apps will not normally need
1895     * to handle this, since the foreground activity will be paused as well.
1896     *
1897     * <p class="note">This is a protected intent that can only be sent
1898     * by the system.
1899     */
1900    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1901    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1902    /**
1903     * Activity Action:  Start this activity to request system shutdown.
1904     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1905     * to request confirmation from the user before shutting down.
1906     *
1907     * <p class="note">This is a protected intent that can only be sent
1908     * by the system.
1909     *
1910     * {@hide}
1911     */
1912    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1913    /**
1914     * Broadcast Action:  A sticky broadcast that indicates low memory
1915     * condition on the device
1916     *
1917     * <p class="note">This is a protected intent that can only be sent
1918     * by the system.
1919     */
1920    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1921    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1922    /**
1923     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1924     *
1925     * <p class="note">This is a protected intent that can only be sent
1926     * by the system.
1927     */
1928    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1929    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1930    /**
1931     * Broadcast Action:  A sticky broadcast that indicates a memory full
1932     * condition on the device. This is intended for activities that want
1933     * to be able to fill the data partition completely, leaving only
1934     * enough free space to prevent system-wide SQLite failures.
1935     *
1936     * <p class="note">This is a protected intent that can only be sent
1937     * by the system.
1938     *
1939     * {@hide}
1940     */
1941    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1942    public static final String ACTION_DEVICE_STORAGE_FULL = "android.intent.action.DEVICE_STORAGE_FULL";
1943    /**
1944     * Broadcast Action:  Indicates memory full condition on the device
1945     * no longer exists.
1946     *
1947     * <p class="note">This is a protected intent that can only be sent
1948     * by the system.
1949     *
1950     * {@hide}
1951     */
1952    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1953    public static final String ACTION_DEVICE_STORAGE_NOT_FULL = "android.intent.action.DEVICE_STORAGE_NOT_FULL";
1954    /**
1955     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1956     * and package management should be started.
1957     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1958     * notification.
1959     */
1960    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1961    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1962    /**
1963     * Broadcast Action:  The device has entered USB Mass Storage mode.
1964     * This is used mainly for the USB Settings panel.
1965     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1966     * when the SD card file system is mounted or unmounted
1967     * @deprecated replaced by android.os.storage.StorageEventListener
1968     */
1969    @Deprecated
1970    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1971
1972    /**
1973     * Broadcast Action:  The device has exited USB Mass Storage mode.
1974     * This is used mainly for the USB Settings panel.
1975     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1976     * when the SD card file system is mounted or unmounted
1977     * @deprecated replaced by android.os.storage.StorageEventListener
1978     */
1979    @Deprecated
1980    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1981
1982    /**
1983     * Broadcast Action:  External media has been removed.
1984     * The path to the mount point for the removed media is contained in the Intent.mData field.
1985     */
1986    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1987    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1988
1989    /**
1990     * Broadcast Action:  External media is present, but not mounted at its mount point.
1991     * The path to the mount point for the unmounted media is contained in the Intent.mData field.
1992     */
1993    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1994    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1995
1996    /**
1997     * Broadcast Action:  External media is present, and being disk-checked
1998     * The path to the mount point for the checking media is contained in the Intent.mData field.
1999     */
2000    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2001    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
2002
2003    /**
2004     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
2005     * The path to the mount point for the checking media is contained in the Intent.mData field.
2006     */
2007    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2008    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
2009
2010    /**
2011     * Broadcast Action:  External media is present and mounted at its mount point.
2012     * The path to the mount point for the mounted media is contained in the Intent.mData field.
2013     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
2014     * media was mounted read only.
2015     */
2016    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2017    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
2018
2019    /**
2020     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
2021     * The path to the mount point for the shared media is contained in the Intent.mData field.
2022     */
2023    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2024    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
2025
2026    /**
2027     * Broadcast Action:  External media is no longer being shared via USB mass storage.
2028     * The path to the mount point for the previously shared media is contained in the Intent.mData field.
2029     *
2030     * @hide
2031     */
2032    public static final String ACTION_MEDIA_UNSHARED = "android.intent.action.MEDIA_UNSHARED";
2033
2034    /**
2035     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
2036     * The path to the mount point for the removed media is contained in the Intent.mData field.
2037     */
2038    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2039    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
2040
2041    /**
2042     * Broadcast Action:  External media is present but cannot be mounted.
2043     * The path to the mount point for the unmountable media is contained in the Intent.mData field.
2044     */
2045    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2046    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
2047
2048   /**
2049     * Broadcast Action:  User has expressed the desire to remove the external storage media.
2050     * Applications should close all files they have open within the mount point when they receive this intent.
2051     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
2052     */
2053    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2054    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
2055
2056    /**
2057     * Broadcast Action:  The media scanner has started scanning a directory.
2058     * The path to the directory being scanned is contained in the Intent.mData field.
2059     */
2060    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2061    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
2062
2063   /**
2064     * Broadcast Action:  The media scanner has finished scanning a directory.
2065     * The path to the scanned directory is contained in the Intent.mData field.
2066     */
2067    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2068    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
2069
2070   /**
2071     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
2072     * The path to the file is contained in the Intent.mData field.
2073     */
2074    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2075    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
2076
2077   /**
2078     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
2079     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
2080     * caused the broadcast.
2081     */
2082    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2083    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
2084
2085    /**
2086     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
2087     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
2088     * caused the broadcast.
2089     */
2090    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2091    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
2092
2093    // *** NOTE: @todo(*) The following really should go into a more domain-specific
2094    // location; they are not general-purpose actions.
2095
2096    /**
2097     * Broadcast Action: A GTalk connection has been established.
2098     */
2099    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2100    public static final String ACTION_GTALK_SERVICE_CONNECTED =
2101            "android.intent.action.GTALK_CONNECTED";
2102
2103    /**
2104     * Broadcast Action: A GTalk connection has been disconnected.
2105     */
2106    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2107    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
2108            "android.intent.action.GTALK_DISCONNECTED";
2109
2110    /**
2111     * Broadcast Action: An input method has been changed.
2112     */
2113    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2114    public static final String ACTION_INPUT_METHOD_CHANGED =
2115            "android.intent.action.INPUT_METHOD_CHANGED";
2116
2117    /**
2118     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
2119     * more radios have been turned off or on. The intent will have the following extra value:</p>
2120     * <ul>
2121     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
2122     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
2123     *   turned off</li>
2124     * </ul>
2125     *
2126     * <p class="note">This is a protected intent that can only be sent
2127     * by the system.
2128     */
2129    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2130    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
2131
2132    /**
2133     * Broadcast Action: Some content providers have parts of their namespace
2134     * where they publish new events or items that the user may be especially
2135     * interested in. For these things, they may broadcast this action when the
2136     * set of interesting items change.
2137     *
2138     * For example, GmailProvider sends this notification when the set of unread
2139     * mail in the inbox changes.
2140     *
2141     * <p>The data of the intent identifies which part of which provider
2142     * changed. When queried through the content resolver, the data URI will
2143     * return the data set in question.
2144     *
2145     * <p>The intent will have the following extra values:
2146     * <ul>
2147     *   <li><em>count</em> - The number of items in the data set. This is the
2148     *       same as the number of items in the cursor returned by querying the
2149     *       data URI. </li>
2150     * </ul>
2151     *
2152     * This intent will be sent at boot (if the count is non-zero) and when the
2153     * data set changes. It is possible for the data set to change without the
2154     * count changing (for example, if a new unread message arrives in the same
2155     * sync operation in which a message is archived). The phone should still
2156     * ring/vibrate/etc as normal in this case.
2157     */
2158    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2159    public static final String ACTION_PROVIDER_CHANGED =
2160            "android.intent.action.PROVIDER_CHANGED";
2161
2162    /**
2163     * Broadcast Action: Wired Headset plugged in or unplugged.
2164     *
2165     * <p>The intent will have the following extra values:
2166     * <ul>
2167     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2168     *   <li><em>name</em> - Headset type, human readable string </li>
2169     *   <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
2170     * </ul>
2171     * </ul>
2172     */
2173    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2174    public static final String ACTION_HEADSET_PLUG =
2175            "android.intent.action.HEADSET_PLUG";
2176
2177    /**
2178     * Broadcast Action: An analog audio speaker/headset plugged in or unplugged.
2179     *
2180     * <p>The intent will have the following extra values:
2181     * <ul>
2182     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2183     *   <li><em>name</em> - Headset type, human readable string </li>
2184     * </ul>
2185     * </ul>
2186     * @hide
2187     */
2188    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2189    public static final String ACTION_ANALOG_AUDIO_DOCK_PLUG =
2190            "android.intent.action.ANALOG_AUDIO_DOCK_PLUG";
2191
2192    /**
2193     * Broadcast Action: A digital audio speaker/headset plugged in or unplugged.
2194     *
2195     * <p>The intent will have the following extra values:
2196     * <ul>
2197     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2198     *   <li><em>name</em> - Headset type, human readable string </li>
2199     * </ul>
2200     * </ul>
2201     * @hide
2202     */
2203    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2204    public static final String ACTION_DIGITAL_AUDIO_DOCK_PLUG =
2205            "android.intent.action.DIGITAL_AUDIO_DOCK_PLUG";
2206
2207    /**
2208     * Broadcast Action: A HMDI cable was plugged or unplugged
2209     *
2210     * <p>The intent will have the following extra values:
2211     * <ul>
2212     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2213     *   <li><em>name</em> - HDMI cable, human readable string </li>
2214     * </ul>
2215     * </ul>
2216     * @hide
2217     */
2218    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2219    public static final String ACTION_HDMI_AUDIO_PLUG =
2220            "android.intent.action.HDMI_AUDIO_PLUG";
2221
2222    /**
2223     * Broadcast Action: A USB audio accessory was plugged in or unplugged.
2224     *
2225     * <p>The intent will have the following extra values:
2226     * <ul>
2227     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2228     *   <li><em>card</em> - ALSA card number (integer) </li>
2229     *   <li><em>device</em> - ALSA device number (integer) </li>
2230     * </ul>
2231     * </ul>
2232     * @hide
2233     */
2234    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2235    public static final String ACTION_USB_AUDIO_ACCESSORY_PLUG =
2236            "android.intent.action.USB_AUDIO_ACCESSORY_PLUG";
2237
2238    /**
2239     * Broadcast Action: A USB audio device was plugged in or unplugged.
2240     *
2241     * <p>The intent will have the following extra values:
2242     * <ul>
2243     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
2244     *   <li><em>card</em> - ALSA card number (integer) </li>
2245     *   <li><em>device</em> - ALSA device number (integer) </li>
2246     * </ul>
2247     * </ul>
2248     * @hide
2249     */
2250    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2251    public static final String ACTION_USB_AUDIO_DEVICE_PLUG =
2252            "android.intent.action.USB_AUDIO_DEVICE_PLUG";
2253
2254    /**
2255     * <p>Broadcast Action: The user has switched on advanced settings in the settings app:</p>
2256     * <ul>
2257     *   <li><em>state</em> - A boolean value indicating whether the settings is on or off.</li>
2258     * </ul>
2259     *
2260     * <p class="note">This is a protected intent that can only be sent
2261     * by the system.
2262     *
2263     * @hide
2264     */
2265    //@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2266    public static final String ACTION_ADVANCED_SETTINGS_CHANGED
2267            = "android.intent.action.ADVANCED_SETTINGS";
2268
2269    /**
2270     * Broadcast Action: An outgoing call is about to be placed.
2271     *
2272     * <p>The Intent will have the following extra value:
2273     * <ul>
2274     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
2275     *       the phone number originally intended to be dialed.</li>
2276     * </ul>
2277     * <p>Once the broadcast is finished, the resultData is used as the actual
2278     * number to call.  If  <code>null</code>, no call will be placed.</p>
2279     * <p>It is perfectly acceptable for multiple receivers to process the
2280     * outgoing call in turn: for example, a parental control application
2281     * might verify that the user is authorized to place the call at that
2282     * time, then a number-rewriting application might add an area code if
2283     * one was not specified.</p>
2284     * <p>For consistency, any receiver whose purpose is to prohibit phone
2285     * calls should have a priority of 0, to ensure it will see the final
2286     * phone number to be dialed.
2287     * Any receiver whose purpose is to rewrite phone numbers to be called
2288     * should have a positive priority.
2289     * Negative priorities are reserved for the system for this broadcast;
2290     * using them may cause problems.</p>
2291     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
2292     * abort the broadcast.</p>
2293     * <p>Emergency calls cannot be intercepted using this mechanism, and
2294     * other calls cannot be modified to call emergency numbers using this
2295     * mechanism.
2296     * <p>You must hold the
2297     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
2298     * permission to receive this Intent.</p>
2299     *
2300     * <p class="note">This is a protected intent that can only be sent
2301     * by the system.
2302     */
2303    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2304    public static final String ACTION_NEW_OUTGOING_CALL =
2305            "android.intent.action.NEW_OUTGOING_CALL";
2306
2307    /**
2308     * Broadcast Action: Have the device reboot.  This is only for use by
2309     * system code.
2310     *
2311     * <p class="note">This is a protected intent that can only be sent
2312     * by the system.
2313     */
2314    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2315    public static final String ACTION_REBOOT =
2316            "android.intent.action.REBOOT";
2317
2318    /**
2319     * Broadcast Action:  A sticky broadcast for changes in the physical
2320     * docking state of the device.
2321     *
2322     * <p>The intent will have the following extra values:
2323     * <ul>
2324     *   <li><em>{@link #EXTRA_DOCK_STATE}</em> - the current dock
2325     *       state, indicating which dock the device is physically in.</li>
2326     * </ul>
2327     * <p>This is intended for monitoring the current physical dock state.
2328     * See {@link android.app.UiModeManager} for the normal API dealing with
2329     * dock mode changes.
2330     */
2331    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2332    public static final String ACTION_DOCK_EVENT =
2333            "android.intent.action.DOCK_EVENT";
2334
2335    /**
2336     * Broadcast Action: A broadcast when idle maintenance can be started.
2337     * This means that the user is not interacting with the device and is
2338     * not expected to do so soon. Typical use of the idle maintenance is
2339     * to perform somehow expensive tasks that can be postponed at a moment
2340     * when they will not degrade user experience.
2341     * <p>
2342     * <p class="note">In order to keep the device responsive in case of an
2343     * unexpected user interaction, implementations of a maintenance task
2344     * should be interruptible. In such a scenario a broadcast with action
2345     * {@link #ACTION_IDLE_MAINTENANCE_END} will be sent. In other words, you
2346     * should not do the maintenance work in
2347     * {@link BroadcastReceiver#onReceive(Context, Intent)}, rather start a
2348     * maintenance service by {@link Context#startService(Intent)}. Also
2349     * you should hold a wake lock while your maintenance service is running
2350     * to prevent the device going to sleep.
2351     * </p>
2352     * <p>
2353     * <p class="note">This is a protected intent that can only be sent by
2354     * the system.
2355     * </p>
2356     *
2357     * @see #ACTION_IDLE_MAINTENANCE_END
2358     */
2359    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2360    public static final String ACTION_IDLE_MAINTENANCE_START =
2361            "android.intent.action.ACTION_IDLE_MAINTENANCE_START";
2362
2363    /**
2364     * Broadcast Action:  A broadcast when idle maintenance should be stopped.
2365     * This means that the user was not interacting with the device as a result
2366     * of which a broadcast with action {@link #ACTION_IDLE_MAINTENANCE_START}
2367     * was sent and now the user started interacting with the device. Typical
2368     * use of the idle maintenance is to perform somehow expensive tasks that
2369     * can be postponed at a moment when they will not degrade user experience.
2370     * <p>
2371     * <p class="note">In order to keep the device responsive in case of an
2372     * unexpected user interaction, implementations of a maintenance task
2373     * should be interruptible. Hence, on receiving a broadcast with this
2374     * action, the maintenance task should be interrupted as soon as possible.
2375     * In other words, you should not do the maintenance work in
2376     * {@link BroadcastReceiver#onReceive(Context, Intent)}, rather stop the
2377     * maintenance service that was started on receiving of
2378     * {@link #ACTION_IDLE_MAINTENANCE_START}.Also you should release the wake
2379     * lock you acquired when your maintenance service started.
2380     * </p>
2381     * <p class="note">This is a protected intent that can only be sent
2382     * by the system.
2383     *
2384     * @see #ACTION_IDLE_MAINTENANCE_START
2385     */
2386    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2387    public static final String ACTION_IDLE_MAINTENANCE_END =
2388            "android.intent.action.ACTION_IDLE_MAINTENANCE_END";
2389
2390    /**
2391     * Broadcast Action: a remote intent is to be broadcasted.
2392     *
2393     * A remote intent is used for remote RPC between devices. The remote intent
2394     * is serialized and sent from one device to another device. The receiving
2395     * device parses the remote intent and broadcasts it. Note that anyone can
2396     * broadcast a remote intent. However, if the intent receiver of the remote intent
2397     * does not trust intent broadcasts from arbitrary intent senders, it should require
2398     * the sender to hold certain permissions so only trusted sender's broadcast will be
2399     * let through.
2400     * @hide
2401     */
2402    public static final String ACTION_REMOTE_INTENT =
2403            "com.google.android.c2dm.intent.RECEIVE";
2404
2405    /**
2406     * Broadcast Action: hook for permforming cleanup after a system update.
2407     *
2408     * The broadcast is sent when the system is booting, before the
2409     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
2410     * image.  A receiver for this should do its work and then disable itself
2411     * so that it does not get run again at the next boot.
2412     * @hide
2413     */
2414    public static final String ACTION_PRE_BOOT_COMPLETED =
2415            "android.intent.action.PRE_BOOT_COMPLETED";
2416
2417    /**
2418     * Broadcast to a specific application to query any supported restrictions to impose
2419     * on restricted users. The response should contain an extra {@link #EXTRA_RESTRICTIONS}
2420     * which is of type <code>ArrayList&lt;RestrictionEntry&gt;</code>.
2421     * @see RestrictionEntry
2422     */
2423    public static final String ACTION_GET_RESTRICTION_ENTRIES =
2424            "android.intent.action.GET_RESTRICTION_ENTRIES";
2425
2426    /**
2427     * Sent the first time a user is starting, to allow system apps to
2428     * perform one time initialization.  (This will not be seen by third
2429     * party applications because a newly initialized user does not have any
2430     * third party applications installed for it.)  This is sent early in
2431     * starting the user, around the time the home app is started, before
2432     * {@link #ACTION_BOOT_COMPLETED} is sent.  This is sent as a foreground
2433     * broadcast, since it is part of a visible user interaction; be as quick
2434     * as possible when handling it.
2435     */
2436    public static final String ACTION_USER_INITIALIZE =
2437            "android.intent.action.USER_INITIALIZE";
2438
2439    /**
2440     * Sent when a user switch is happening, causing the process's user to be
2441     * brought to the foreground.  This is only sent to receivers registered
2442     * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
2443     * Context.registerReceiver}.  It is sent to the user that is going to the
2444     * foreground.  This is sent as a foreground
2445     * broadcast, since it is part of a visible user interaction; be as quick
2446     * as possible when handling it.
2447     */
2448    public static final String ACTION_USER_FOREGROUND =
2449            "android.intent.action.USER_FOREGROUND";
2450
2451    /**
2452     * Sent when a user switch is happening, causing the process's user to be
2453     * sent to the background.  This is only sent to receivers registered
2454     * through {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
2455     * Context.registerReceiver}.  It is sent to the user that is going to the
2456     * background.  This is sent as a foreground
2457     * broadcast, since it is part of a visible user interaction; be as quick
2458     * as possible when handling it.
2459     */
2460    public static final String ACTION_USER_BACKGROUND =
2461            "android.intent.action.USER_BACKGROUND";
2462
2463    /**
2464     * Broadcast sent to the system when a user is added. Carries an extra
2465     * EXTRA_USER_HANDLE that has the userHandle of the new user.  It is sent to
2466     * all running users.  You must hold
2467     * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
2468     * @hide
2469     */
2470    public static final String ACTION_USER_ADDED =
2471            "android.intent.action.USER_ADDED";
2472
2473    /**
2474     * Broadcast sent by the system when a user is started. Carries an extra
2475     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only sent to
2476     * registered receivers, not manifest receivers.  It is sent to the user
2477     * that has been started.  This is sent as a foreground
2478     * broadcast, since it is part of a visible user interaction; be as quick
2479     * as possible when handling it.
2480     * @hide
2481     */
2482    public static final String ACTION_USER_STARTED =
2483            "android.intent.action.USER_STARTED";
2484
2485    /**
2486     * Broadcast sent when a user is in the process of starting.  Carries an extra
2487     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only
2488     * sent to registered receivers, not manifest receivers.  It is sent to all
2489     * users (including the one that is being started).  You must hold
2490     * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive
2491     * this broadcast.  This is sent as a background broadcast, since
2492     * its result is not part of the primary UX flow; to safely keep track of
2493     * started/stopped state of a user you can use this in conjunction with
2494     * {@link #ACTION_USER_STOPPING}.  It is <b>not</b> generally safe to use with
2495     * other user state broadcasts since those are foreground broadcasts so can
2496     * execute in a different order.
2497     * @hide
2498     */
2499    public static final String ACTION_USER_STARTING =
2500            "android.intent.action.USER_STARTING";
2501
2502    /**
2503     * Broadcast sent when a user is going to be stopped.  Carries an extra
2504     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is only
2505     * sent to registered receivers, not manifest receivers.  It is sent to all
2506     * users (including the one that is being stopped).  You must hold
2507     * {@link android.Manifest.permission#INTERACT_ACROSS_USERS} to receive
2508     * this broadcast.  The user will not stop until all receivers have
2509     * handled the broadcast.  This is sent as a background broadcast, since
2510     * its result is not part of the primary UX flow; to safely keep track of
2511     * started/stopped state of a user you can use this in conjunction with
2512     * {@link #ACTION_USER_STARTING}.  It is <b>not</b> generally safe to use with
2513     * other user state broadcasts since those are foreground broadcasts so can
2514     * execute in a different order.
2515     * @hide
2516     */
2517    public static final String ACTION_USER_STOPPING =
2518            "android.intent.action.USER_STOPPING";
2519
2520    /**
2521     * Broadcast sent to the system when a user is stopped. Carries an extra
2522     * EXTRA_USER_HANDLE that has the userHandle of the user.  This is similar to
2523     * {@link #ACTION_PACKAGE_RESTARTED}, but for an entire user instead of a
2524     * specific package.  This is only sent to registered receivers, not manifest
2525     * receivers.  It is sent to all running users <em>except</em> the one that
2526     * has just been stopped (which is no longer running).
2527     * @hide
2528     */
2529    public static final String ACTION_USER_STOPPED =
2530            "android.intent.action.USER_STOPPED";
2531
2532    /**
2533     * Broadcast sent to the system when a user is removed. Carries an extra EXTRA_USER_HANDLE that has
2534     * the userHandle of the user.  It is sent to all running users except the
2535     * one that has been removed. The user will not be completely removed until all receivers have
2536     * handled the broadcast. You must hold
2537     * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
2538     * @hide
2539     */
2540    public static final String ACTION_USER_REMOVED =
2541            "android.intent.action.USER_REMOVED";
2542
2543    /**
2544     * Broadcast sent to the system when the user switches. Carries an extra EXTRA_USER_HANDLE that has
2545     * the userHandle of the user to become the current one. This is only sent to
2546     * registered receivers, not manifest receivers.  It is sent to all running users.
2547     * You must hold
2548     * {@link android.Manifest.permission#MANAGE_USERS} to receive this broadcast.
2549     * @hide
2550     */
2551    public static final String ACTION_USER_SWITCHED =
2552            "android.intent.action.USER_SWITCHED";
2553
2554    /**
2555     * Broadcast sent to the system when a user's information changes. Carries an extra
2556     * {@link #EXTRA_USER_HANDLE} to indicate which user's information changed.
2557     * This is only sent to registered receivers, not manifest receivers. It is sent to the user
2558     * whose information has changed.
2559     * @hide
2560     */
2561    public static final String ACTION_USER_INFO_CHANGED =
2562            "android.intent.action.USER_INFO_CHANGED";
2563
2564    /**
2565     * Sent when the user taps on the clock widget in the system's "quick settings" area.
2566     */
2567    public static final String ACTION_QUICK_CLOCK =
2568            "android.intent.action.QUICK_CLOCK";
2569
2570    /**
2571     * Broadcast Action: This is broadcast when a user action should request the
2572     * brightness setting dialog.
2573     * @hide
2574     */
2575    public static final String ACTION_SHOW_BRIGHTNESS_DIALOG =
2576            "android.intent.action.SHOW_BRIGHTNESS_DIALOG";
2577
2578    // ---------------------------------------------------------------------
2579    // ---------------------------------------------------------------------
2580    // Standard intent categories (see addCategory()).
2581
2582    /**
2583     * Set if the activity should be an option for the default action
2584     * (center press) to perform on a piece of data.  Setting this will
2585     * hide from the user any activities without it set when performing an
2586     * action on some data.  Note that this is normal -not- set in the
2587     * Intent when initiating an action -- it is for use in intent filters
2588     * specified in packages.
2589     */
2590    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2591    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
2592    /**
2593     * Activities that can be safely invoked from a browser must support this
2594     * category.  For example, if the user is viewing a web page or an e-mail
2595     * and clicks on a link in the text, the Intent generated execute that
2596     * link will require the BROWSABLE category, so that only activities
2597     * supporting this category will be considered as possible actions.  By
2598     * supporting this category, you are promising that there is nothing
2599     * damaging (without user intervention) that can happen by invoking any
2600     * matching Intent.
2601     */
2602    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2603    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
2604    /**
2605     * Set if the activity should be considered as an alternative action to
2606     * the data the user is currently viewing.  See also
2607     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
2608     * applies to the selection in a list of items.
2609     *
2610     * <p>Supporting this category means that you would like your activity to be
2611     * displayed in the set of alternative things the user can do, usually as
2612     * part of the current activity's options menu.  You will usually want to
2613     * include a specific label in the &lt;intent-filter&gt; of this action
2614     * describing to the user what it does.
2615     *
2616     * <p>The action of IntentFilter with this category is important in that it
2617     * describes the specific action the target will perform.  This generally
2618     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
2619     * a specific name such as "com.android.camera.action.CROP.  Only one
2620     * alternative of any particular action will be shown to the user, so using
2621     * a specific action like this makes sure that your alternative will be
2622     * displayed while also allowing other applications to provide their own
2623     * overrides of that particular action.
2624     */
2625    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2626    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
2627    /**
2628     * Set if the activity should be considered as an alternative selection
2629     * action to the data the user has currently selected.  This is like
2630     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
2631     * of items from which the user can select, giving them alternatives to the
2632     * default action that will be performed on it.
2633     */
2634    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2635    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
2636    /**
2637     * Intended to be used as a tab inside of a containing TabActivity.
2638     */
2639    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2640    public static final String CATEGORY_TAB = "android.intent.category.TAB";
2641    /**
2642     * Should be displayed in the top-level launcher.
2643     */
2644    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2645    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
2646    /**
2647     * Provides information about the package it is in; typically used if
2648     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
2649     * a front-door to the user without having to be shown in the all apps list.
2650     */
2651    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2652    public static final String CATEGORY_INFO = "android.intent.category.INFO";
2653    /**
2654     * This is the home activity, that is the first activity that is displayed
2655     * when the device boots.
2656     */
2657    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2658    public static final String CATEGORY_HOME = "android.intent.category.HOME";
2659    /**
2660     * This activity is a preference panel.
2661     */
2662    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2663    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
2664    /**
2665     * This activity is a development preference panel.
2666     */
2667    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2668    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
2669    /**
2670     * Capable of running inside a parent activity container.
2671     */
2672    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2673    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
2674    /**
2675     * This activity allows the user to browse and download new applications.
2676     */
2677    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2678    public static final String CATEGORY_APP_MARKET = "android.intent.category.APP_MARKET";
2679    /**
2680     * This activity may be exercised by the monkey or other automated test tools.
2681     */
2682    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2683    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
2684    /**
2685     * To be used as a test (not part of the normal user experience).
2686     */
2687    public static final String CATEGORY_TEST = "android.intent.category.TEST";
2688    /**
2689     * To be used as a unit test (run through the Test Harness).
2690     */
2691    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
2692    /**
2693     * To be used as a sample code example (not part of the normal user
2694     * experience).
2695     */
2696    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
2697    /**
2698     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
2699     * ContentResolver.openInputStream. Openable URIs must support the columns in
2700     * {@link android.provider.OpenableColumns}
2701     * when queried, though it is allowable for those columns to be blank.
2702     */
2703    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2704    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
2705
2706    /**
2707     * To be used as code under test for framework instrumentation tests.
2708     */
2709    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
2710            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
2711    /**
2712     * An activity to run when device is inserted into a car dock.
2713     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2714     * information, see {@link android.app.UiModeManager}.
2715     */
2716    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2717    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
2718    /**
2719     * An activity to run when device is inserted into a car dock.
2720     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2721     * information, see {@link android.app.UiModeManager}.
2722     */
2723    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2724    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
2725    /**
2726     * An activity to run when device is inserted into a analog (low end) dock.
2727     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2728     * information, see {@link android.app.UiModeManager}.
2729     */
2730    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2731    public static final String CATEGORY_LE_DESK_DOCK = "android.intent.category.LE_DESK_DOCK";
2732
2733    /**
2734     * An activity to run when device is inserted into a digital (high end) dock.
2735     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2736     * information, see {@link android.app.UiModeManager}.
2737     */
2738    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2739    public static final String CATEGORY_HE_DESK_DOCK = "android.intent.category.HE_DESK_DOCK";
2740
2741    /**
2742     * Used to indicate that the activity can be used in a car environment.
2743     */
2744    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2745    public static final String CATEGORY_CAR_MODE = "android.intent.category.CAR_MODE";
2746
2747    // ---------------------------------------------------------------------
2748    // ---------------------------------------------------------------------
2749    // Application launch intent categories (see addCategory()).
2750
2751    /**
2752     * Used with {@link #ACTION_MAIN} to launch the browser application.
2753     * The activity should be able to browse the Internet.
2754     * <p>NOTE: This should not be used as the primary key of an Intent,
2755     * since it will not result in the app launching with the correct
2756     * action and category.  Instead, use this with
2757     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2758     * Intent with this category in the selector.</p>
2759     */
2760    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2761    public static final String CATEGORY_APP_BROWSER = "android.intent.category.APP_BROWSER";
2762
2763    /**
2764     * Used with {@link #ACTION_MAIN} to launch the calculator application.
2765     * The activity should be able to perform standard arithmetic operations.
2766     * <p>NOTE: This should not be used as the primary key of an Intent,
2767     * since it will not result in the app launching with the correct
2768     * action and category.  Instead, use this with
2769     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2770     * Intent with this category in the selector.</p>
2771     */
2772    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2773    public static final String CATEGORY_APP_CALCULATOR = "android.intent.category.APP_CALCULATOR";
2774
2775    /**
2776     * Used with {@link #ACTION_MAIN} to launch the calendar application.
2777     * The activity should be able to view and manipulate calendar entries.
2778     * <p>NOTE: This should not be used as the primary key of an Intent,
2779     * since it will not result in the app launching with the correct
2780     * action and category.  Instead, use this with
2781     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2782     * Intent with this category in the selector.</p>
2783     */
2784    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2785    public static final String CATEGORY_APP_CALENDAR = "android.intent.category.APP_CALENDAR";
2786
2787    /**
2788     * Used with {@link #ACTION_MAIN} to launch the contacts application.
2789     * The activity should be able to view and manipulate address book entries.
2790     * <p>NOTE: This should not be used as the primary key of an Intent,
2791     * since it will not result in the app launching with the correct
2792     * action and category.  Instead, use this with
2793     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2794     * Intent with this category in the selector.</p>
2795     */
2796    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2797    public static final String CATEGORY_APP_CONTACTS = "android.intent.category.APP_CONTACTS";
2798
2799    /**
2800     * Used with {@link #ACTION_MAIN} to launch the email application.
2801     * The activity should be able to send and receive email.
2802     * <p>NOTE: This should not be used as the primary key of an Intent,
2803     * since it will not result in the app launching with the correct
2804     * action and category.  Instead, use this with
2805     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2806     * Intent with this category in the selector.</p>
2807     */
2808    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2809    public static final String CATEGORY_APP_EMAIL = "android.intent.category.APP_EMAIL";
2810
2811    /**
2812     * Used with {@link #ACTION_MAIN} to launch the gallery application.
2813     * The activity should be able to view and manipulate image and video files
2814     * stored on the device.
2815     * <p>NOTE: This should not be used as the primary key of an Intent,
2816     * since it will not result in the app launching with the correct
2817     * action and category.  Instead, use this with
2818     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2819     * Intent with this category in the selector.</p>
2820     */
2821    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2822    public static final String CATEGORY_APP_GALLERY = "android.intent.category.APP_GALLERY";
2823
2824    /**
2825     * Used with {@link #ACTION_MAIN} to launch the maps application.
2826     * The activity should be able to show the user's current location and surroundings.
2827     * <p>NOTE: This should not be used as the primary key of an Intent,
2828     * since it will not result in the app launching with the correct
2829     * action and category.  Instead, use this with
2830     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2831     * Intent with this category in the selector.</p>
2832     */
2833    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2834    public static final String CATEGORY_APP_MAPS = "android.intent.category.APP_MAPS";
2835
2836    /**
2837     * Used with {@link #ACTION_MAIN} to launch the messaging application.
2838     * The activity should be able to send and receive text messages.
2839     * <p>NOTE: This should not be used as the primary key of an Intent,
2840     * since it will not result in the app launching with the correct
2841     * action and category.  Instead, use this with
2842     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2843     * Intent with this category in the selector.</p>
2844     */
2845    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2846    public static final String CATEGORY_APP_MESSAGING = "android.intent.category.APP_MESSAGING";
2847
2848    /**
2849     * Used with {@link #ACTION_MAIN} to launch the music application.
2850     * The activity should be able to play, browse, or manipulate music files
2851     * stored on the device.
2852     * <p>NOTE: This should not be used as the primary key of an Intent,
2853     * since it will not result in the app launching with the correct
2854     * action and category.  Instead, use this with
2855     * {@link #makeMainSelectorActivity(String, String)} to generate a main
2856     * Intent with this category in the selector.</p>
2857     */
2858    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2859    public static final String CATEGORY_APP_MUSIC = "android.intent.category.APP_MUSIC";
2860
2861    // ---------------------------------------------------------------------
2862    // ---------------------------------------------------------------------
2863    // Standard extra data keys.
2864
2865    /**
2866     * The initial data to place in a newly created record.  Use with
2867     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
2868     * fields as would be given to the underlying ContentProvider.insert()
2869     * call.
2870     */
2871    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
2872
2873    /**
2874     * A constant CharSequence that is associated with the Intent, used with
2875     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
2876     * this may be a styled CharSequence, so you must use
2877     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
2878     * retrieve it.
2879     */
2880    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
2881
2882    /**
2883     * A constant String that is associated with the Intent, used with
2884     * {@link #ACTION_SEND} to supply an alternative to {@link #EXTRA_TEXT}
2885     * as HTML formatted text.  Note that you <em>must</em> also supply
2886     * {@link #EXTRA_TEXT}.
2887     */
2888    public static final String EXTRA_HTML_TEXT = "android.intent.extra.HTML_TEXT";
2889
2890    /**
2891     * A content: URI holding a stream of data associated with the Intent,
2892     * used with {@link #ACTION_SEND} to supply the data being sent.
2893     */
2894    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
2895
2896    /**
2897     * A String[] holding e-mail addresses that should be delivered to.
2898     */
2899    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
2900
2901    /**
2902     * A String[] holding e-mail addresses that should be carbon copied.
2903     */
2904    public static final String EXTRA_CC       = "android.intent.extra.CC";
2905
2906    /**
2907     * A String[] holding e-mail addresses that should be blind carbon copied.
2908     */
2909    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
2910
2911    /**
2912     * A constant string holding the desired subject line of a message.
2913     */
2914    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
2915
2916    /**
2917     * An Intent describing the choices you would like shown with
2918     * {@link #ACTION_PICK_ACTIVITY}.
2919     */
2920    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
2921
2922    /**
2923     * A CharSequence dialog title to provide to the user when used with a
2924     * {@link #ACTION_CHOOSER}.
2925     */
2926    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
2927
2928    /**
2929     * A Parcelable[] of {@link Intent} or
2930     * {@link android.content.pm.LabeledIntent} objects as set with
2931     * {@link #putExtra(String, Parcelable[])} of additional activities to place
2932     * a the front of the list of choices, when shown to the user with a
2933     * {@link #ACTION_CHOOSER}.
2934     */
2935    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
2936
2937    /**
2938     * A {@link android.view.KeyEvent} object containing the event that
2939     * triggered the creation of the Intent it is in.
2940     */
2941    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
2942
2943    /**
2944     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
2945     * before shutting down.
2946     *
2947     * {@hide}
2948     */
2949    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
2950
2951    /**
2952     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2953     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
2954     * of restarting the application.
2955     */
2956    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
2957
2958    /**
2959     * A String holding the phone number originally entered in
2960     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
2961     * number to call in a {@link android.content.Intent#ACTION_CALL}.
2962     */
2963    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
2964
2965    /**
2966     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
2967     * intents to supply the uid the package had been assigned.  Also an optional
2968     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2969     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2970     * purpose.
2971     */
2972    public static final String EXTRA_UID = "android.intent.extra.UID";
2973
2974    /**
2975     * @hide String array of package names.
2976     */
2977    public static final String EXTRA_PACKAGES = "android.intent.extra.PACKAGES";
2978
2979    /**
2980     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2981     * intents to indicate whether this represents a full uninstall (removing
2982     * both the code and its data) or a partial uninstall (leaving its data,
2983     * implying that this is an update).
2984     */
2985    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2986
2987    /**
2988     * @hide
2989     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2990     * intents to indicate that at this point the package has been removed for
2991     * all users on the device.
2992     */
2993    public static final String EXTRA_REMOVED_FOR_ALL_USERS
2994            = "android.intent.extra.REMOVED_FOR_ALL_USERS";
2995
2996    /**
2997     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2998     * intents to indicate that this is a replacement of the package, so this
2999     * broadcast will immediately be followed by an add broadcast for a
3000     * different version of the same package.
3001     */
3002    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
3003
3004    /**
3005     * Used as an int extra field in {@link android.app.AlarmManager} intents
3006     * to tell the application being invoked how many pending alarms are being
3007     * delievered with the intent.  For one-shot alarms this will always be 1.
3008     * For recurring alarms, this might be greater than 1 if the device was
3009     * asleep or powered off at the time an earlier alarm would have been
3010     * delivered.
3011     */
3012    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
3013
3014    /**
3015     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
3016     * intents to request the dock state.  Possible values are
3017     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
3018     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
3019     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}, or
3020     * {@link android.content.Intent#EXTRA_DOCK_STATE_LE_DESK}, or
3021     * {@link android.content.Intent#EXTRA_DOCK_STATE_HE_DESK}.
3022     */
3023    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
3024
3025    /**
3026     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3027     * to represent that the phone is not in any dock.
3028     */
3029    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
3030
3031    /**
3032     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3033     * to represent that the phone is in a desk dock.
3034     */
3035    public static final int EXTRA_DOCK_STATE_DESK = 1;
3036
3037    /**
3038     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3039     * to represent that the phone is in a car dock.
3040     */
3041    public static final int EXTRA_DOCK_STATE_CAR = 2;
3042
3043    /**
3044     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3045     * to represent that the phone is in a analog (low end) dock.
3046     */
3047    public static final int EXTRA_DOCK_STATE_LE_DESK = 3;
3048
3049    /**
3050     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
3051     * to represent that the phone is in a digital (high end) dock.
3052     */
3053    public static final int EXTRA_DOCK_STATE_HE_DESK = 4;
3054
3055    /**
3056     * Boolean that can be supplied as meta-data with a dock activity, to
3057     * indicate that the dock should take over the home key when it is active.
3058     */
3059    public static final String METADATA_DOCK_HOME = "android.dock_home";
3060
3061    /**
3062     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
3063     * the bug report.
3064     */
3065    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
3066
3067    /**
3068     * Used in the extra field in the remote intent. It's astring token passed with the
3069     * remote intent.
3070     */
3071    public static final String EXTRA_REMOTE_INTENT_TOKEN =
3072            "android.intent.extra.remote_intent_token";
3073
3074    /**
3075     * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
3076     * will contain only the first name in the list.
3077     */
3078    @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
3079            "android.intent.extra.changed_component_name";
3080
3081    /**
3082     * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED},
3083     * and contains a string array of all of the components that have changed.  If
3084     * the state of the overall package has changed, then it will contain an entry
3085     * with the package name itself.
3086     */
3087    public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
3088            "android.intent.extra.changed_component_name_list";
3089
3090    /**
3091     * This field is part of
3092     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
3093     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
3094     * and contains a string array of all of the components that have changed.
3095     */
3096    public static final String EXTRA_CHANGED_PACKAGE_LIST =
3097            "android.intent.extra.changed_package_list";
3098
3099    /**
3100     * This field is part of
3101     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
3102     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
3103     * and contains an integer array of uids of all of the components
3104     * that have changed.
3105     */
3106    public static final String EXTRA_CHANGED_UID_LIST =
3107            "android.intent.extra.changed_uid_list";
3108
3109    /**
3110     * @hide
3111     * Magic extra system code can use when binding, to give a label for
3112     * who it is that has bound to a service.  This is an integer giving
3113     * a framework string resource that can be displayed to the user.
3114     */
3115    public static final String EXTRA_CLIENT_LABEL =
3116            "android.intent.extra.client_label";
3117
3118    /**
3119     * @hide
3120     * Magic extra system code can use when binding, to give a PendingIntent object
3121     * that can be launched for the user to disable the system's use of this
3122     * service.
3123     */
3124    public static final String EXTRA_CLIENT_INTENT =
3125            "android.intent.extra.client_intent";
3126
3127    /**
3128     * Used to indicate that a {@link #ACTION_GET_CONTENT} intent should only return
3129     * data that is on the local device.  This is a boolean extra; the default
3130     * is false.  If true, an implementation of ACTION_GET_CONTENT should only allow
3131     * the user to select media that is already on the device, not requiring it
3132     * be downloaded from a remote service when opened.  Another way to look
3133     * at it is that such content should generally have a "_data" column to the
3134     * path of the content on local external storage.
3135     */
3136    public static final String EXTRA_LOCAL_ONLY =
3137        "android.intent.extra.LOCAL_ONLY";
3138
3139    /**
3140     * Used to indicate that a {@link #ACTION_GET_CONTENT} intent can allow the
3141     * user to select and return multiple items.  This is a boolean extra; the default
3142     * is false.  If true, an implementation of ACTION_GET_CONTENT is allowed to
3143     * present the user with a UI where they can pick multiple items that are all
3144     * returned to the caller.  When this happens, they should be returned as
3145     * the {@link #getClipData()} part of the result Intent.
3146     */
3147    public static final String EXTRA_ALLOW_MULTIPLE =
3148        "android.intent.extra.ALLOW_MULTIPLE";
3149
3150    /**
3151     * The userHandle carried with broadcast intents related to addition, removal and switching of users
3152     * - {@link #ACTION_USER_ADDED}, {@link #ACTION_USER_REMOVED} and {@link #ACTION_USER_SWITCHED}.
3153     * @hide
3154     */
3155    public static final String EXTRA_USER_HANDLE =
3156            "android.intent.extra.user_handle";
3157
3158    /**
3159     * Extra used in the response from a BroadcastReceiver that handles
3160     * {@link #ACTION_GET_RESTRICTION_ENTRIES}.
3161     */
3162    public static final String EXTRA_RESTRICTIONS = "android.intent.extra.restrictions";
3163
3164    // ---------------------------------------------------------------------
3165    // ---------------------------------------------------------------------
3166    // Intent flags (see mFlags variable).
3167
3168    /**
3169     * If set, the recipient of this Intent will be granted permission to
3170     * perform read operations on the Uri in the Intent's data and any URIs
3171     * specified in its ClipData.  When applying to an Intent's ClipData,
3172     * all URIs as well as recursive traversals through data or other ClipData
3173     * in Intent items will be granted; only the grant flags of the top-level
3174     * Intent are used.
3175     */
3176    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
3177    /**
3178     * If set, the recipient of this Intent will be granted permission to
3179     * perform write operations on the Uri in the Intent's data and any URIs
3180     * specified in its ClipData.  When applying to an Intent's ClipData,
3181     * all URIs as well as recursive traversals through data or other ClipData
3182     * in Intent items will be granted; only the grant flags of the top-level
3183     * Intent are used.
3184     */
3185    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
3186    /**
3187     * Can be set by the caller to indicate that this Intent is coming from
3188     * a background operation, not from direct user interaction.
3189     */
3190    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
3191    /**
3192     * A flag you can enable for debugging: when set, log messages will be
3193     * printed during the resolution of this intent to show you what has
3194     * been found to create the final resolved list.
3195     */
3196    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
3197    /**
3198     * If set, this intent will not match any components in packages that
3199     * are currently stopped.  If this is not set, then the default behavior
3200     * is to include such applications in the result.
3201     */
3202    public static final int FLAG_EXCLUDE_STOPPED_PACKAGES = 0x00000010;
3203    /**
3204     * If set, this intent will always match any components in packages that
3205     * are currently stopped.  This is the default behavior when
3206     * {@link #FLAG_EXCLUDE_STOPPED_PACKAGES} is not set.  If both of these
3207     * flags are set, this one wins (it allows overriding of exclude for
3208     * places where the framework may automatically set the exclude flag).
3209     */
3210    public static final int FLAG_INCLUDE_STOPPED_PACKAGES = 0x00000020;
3211
3212    /**
3213     * If set, the new activity is not kept in the history stack.  As soon as
3214     * the user navigates away from it, the activity is finished.  This may also
3215     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
3216     * noHistory} attribute.
3217     */
3218    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
3219    /**
3220     * If set, the activity will not be launched if it is already running
3221     * at the top of the history stack.
3222     */
3223    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
3224    /**
3225     * If set, this activity will become the start of a new task on this
3226     * history stack.  A task (from the activity that started it to the
3227     * next task activity) defines an atomic group of activities that the
3228     * user can move to.  Tasks can be moved to the foreground and background;
3229     * all of the activities inside of a particular task always remain in
3230     * the same order.  See
3231     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
3232     * Stack</a> for more information about tasks.
3233     *
3234     * <p>This flag is generally used by activities that want
3235     * to present a "launcher" style behavior: they give the user a list of
3236     * separate things that can be done, which otherwise run completely
3237     * independently of the activity launching them.
3238     *
3239     * <p>When using this flag, if a task is already running for the activity
3240     * you are now starting, then a new activity will not be started; instead,
3241     * the current task will simply be brought to the front of the screen with
3242     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
3243     * to disable this behavior.
3244     *
3245     * <p>This flag can not be used when the caller is requesting a result from
3246     * the activity being launched.
3247     */
3248    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
3249    /**
3250     * <strong>Do not use this flag unless you are implementing your own
3251     * top-level application launcher.</strong>  Used in conjunction with
3252     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
3253     * behavior of bringing an existing task to the foreground.  When set,
3254     * a new task is <em>always</em> started to host the Activity for the
3255     * Intent, regardless of whether there is already an existing task running
3256     * the same thing.
3257     *
3258     * <p><strong>Because the default system does not include graphical task management,
3259     * you should not use this flag unless you provide some way for a user to
3260     * return back to the tasks you have launched.</strong>
3261     *
3262     * <p>This flag is ignored if
3263     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
3264     *
3265     * <p>See
3266     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
3267     * Stack</a> for more information about tasks.
3268     */
3269    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
3270    /**
3271     * If set, and the activity being launched is already running in the
3272     * current task, then instead of launching a new instance of that activity,
3273     * all of the other activities on top of it will be closed and this Intent
3274     * will be delivered to the (now on top) old activity as a new Intent.
3275     *
3276     * <p>For example, consider a task consisting of the activities: A, B, C, D.
3277     * If D calls startActivity() with an Intent that resolves to the component
3278     * of activity B, then C and D will be finished and B receive the given
3279     * Intent, resulting in the stack now being: A, B.
3280     *
3281     * <p>The currently running instance of activity B in the above example will
3282     * either receive the new intent you are starting here in its
3283     * onNewIntent() method, or be itself finished and restarted with the
3284     * new intent.  If it has declared its launch mode to be "multiple" (the
3285     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
3286     * the same intent, then it will be finished and re-created; for all other
3287     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
3288     * Intent will be delivered to the current instance's onNewIntent().
3289     *
3290     * <p>This launch mode can also be used to good effect in conjunction with
3291     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
3292     * of a task, it will bring any currently running instance of that task
3293     * to the foreground, and then clear it to its root state.  This is
3294     * especially useful, for example, when launching an activity from the
3295     * notification manager.
3296     *
3297     * <p>See
3298     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
3299     * Stack</a> for more information about tasks.
3300     */
3301    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
3302    /**
3303     * If set and this intent is being used to launch a new activity from an
3304     * existing one, then the reply target of the existing activity will be
3305     * transfered to the new activity.  This way the new activity can call
3306     * {@link android.app.Activity#setResult} and have that result sent back to
3307     * the reply target of the original activity.
3308     */
3309    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
3310    /**
3311     * If set and this intent is being used to launch a new activity from an
3312     * existing one, the current activity will not be counted as the top
3313     * activity for deciding whether the new intent should be delivered to
3314     * the top instead of starting a new one.  The previous activity will
3315     * be used as the top, with the assumption being that the current activity
3316     * will finish itself immediately.
3317     */
3318    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
3319    /**
3320     * If set, the new activity is not kept in the list of recently launched
3321     * activities.
3322     */
3323    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
3324    /**
3325     * This flag is not normally set by application code, but set for you by
3326     * the system as described in the
3327     * {@link android.R.styleable#AndroidManifestActivity_launchMode
3328     * launchMode} documentation for the singleTask mode.
3329     */
3330    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
3331    /**
3332     * If set, and this activity is either being started in a new task or
3333     * bringing to the top an existing task, then it will be launched as
3334     * the front door of the task.  This will result in the application of
3335     * any affinities needed to have that task in the proper state (either
3336     * moving activities to or from it), or simply resetting that task to
3337     * its initial state if needed.
3338     */
3339    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
3340    /**
3341     * This flag is not normally set by application code, but set for you by
3342     * the system if this activity is being launched from history
3343     * (longpress home key).
3344     */
3345    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
3346    /**
3347     * If set, this marks a point in the task's activity stack that should
3348     * be cleared when the task is reset.  That is, the next time the task
3349     * is brought to the foreground with
3350     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
3351     * the user re-launching it from home), this activity and all on top of
3352     * it will be finished so that the user does not return to them, but
3353     * instead returns to whatever activity preceeded it.
3354     *
3355     * <p>This is useful for cases where you have a logical break in your
3356     * application.  For example, an e-mail application may have a command
3357     * to view an attachment, which launches an image view activity to
3358     * display it.  This activity should be part of the e-mail application's
3359     * task, since it is a part of the task the user is involved in.  However,
3360     * if the user leaves that task, and later selects the e-mail app from
3361     * home, we may like them to return to the conversation they were
3362     * viewing, not the picture attachment, since that is confusing.  By
3363     * setting this flag when launching the image viewer, that viewer and
3364     * any activities it starts will be removed the next time the user returns
3365     * to mail.
3366     */
3367    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
3368    /**
3369     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
3370     * callback from occurring on the current frontmost activity before it is
3371     * paused as the newly-started activity is brought to the front.
3372     *
3373     * <p>Typically, an activity can rely on that callback to indicate that an
3374     * explicit user action has caused their activity to be moved out of the
3375     * foreground. The callback marks an appropriate point in the activity's
3376     * lifecycle for it to dismiss any notifications that it intends to display
3377     * "until the user has seen them," such as a blinking LED.
3378     *
3379     * <p>If an activity is ever started via any non-user-driven events such as
3380     * phone-call receipt or an alarm handler, this flag should be passed to {@link
3381     * Context#startActivity Context.startActivity}, ensuring that the pausing
3382     * activity does not think the user has acknowledged its notification.
3383     */
3384    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
3385    /**
3386     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3387     * this flag will cause the launched activity to be brought to the front of its
3388     * task's history stack if it is already running.
3389     *
3390     * <p>For example, consider a task consisting of four activities: A, B, C, D.
3391     * If D calls startActivity() with an Intent that resolves to the component
3392     * of activity B, then B will be brought to the front of the history stack,
3393     * with this resulting order:  A, C, D, B.
3394     *
3395     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
3396     * specified.
3397     */
3398    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
3399    /**
3400     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3401     * this flag will prevent the system from applying an activity transition
3402     * animation to go to the next activity state.  This doesn't mean an
3403     * animation will never run -- if another activity change happens that doesn't
3404     * specify this flag before the activity started here is displayed, then
3405     * that transition will be used.  This flag can be put to good use
3406     * when you are going to do a series of activity operations but the
3407     * animation seen by the user shouldn't be driven by the first activity
3408     * change but rather a later one.
3409     */
3410    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
3411    /**
3412     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3413     * this flag will cause any existing task that would be associated with the
3414     * activity to be cleared before the activity is started.  That is, the activity
3415     * becomes the new root of an otherwise empty task, and any old activities
3416     * are finished.  This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
3417     */
3418    public static final int FLAG_ACTIVITY_CLEAR_TASK = 0X00008000;
3419    /**
3420     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
3421     * this flag will cause a newly launching task to be placed on top of the current
3422     * home activity task (if there is one).  That is, pressing back from the task
3423     * will always return the user to home even if that was not the last activity they
3424     * saw.   This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
3425     */
3426    public static final int FLAG_ACTIVITY_TASK_ON_HOME = 0X00004000;
3427    /**
3428     * If set, when sending a broadcast only registered receivers will be
3429     * called -- no BroadcastReceiver components will be launched.
3430     */
3431    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
3432    /**
3433     * If set, when sending a broadcast the new broadcast will replace
3434     * any existing pending broadcast that matches it.  Matching is defined
3435     * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning
3436     * true for the intents of the two broadcasts.  When a match is found,
3437     * the new broadcast (and receivers associated with it) will replace the
3438     * existing one in the pending broadcast list, remaining at the same
3439     * position in the list.
3440     *
3441     * <p>This flag is most typically used with sticky broadcasts, which
3442     * only care about delivering the most recent values of the broadcast
3443     * to their receivers.
3444     */
3445    public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
3446    /**
3447     * If set, when sending a broadcast the recipient is allowed to run at
3448     * foreground priority, with a shorter timeout interval.  During normal
3449     * broadcasts the receivers are not automatically hoisted out of the
3450     * background priority class.
3451     */
3452    public static final int FLAG_RECEIVER_FOREGROUND = 0x10000000;
3453    /**
3454     * If set, when sending a broadcast <i>before boot has completed</i> only
3455     * registered receivers will be called -- no BroadcastReceiver components
3456     * will be launched.  Sticky intent state will be recorded properly even
3457     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
3458     * is specified in the broadcast intent, this flag is unnecessary.
3459     *
3460     * <p>This flag is only for use by system sevices as a convenience to
3461     * avoid having to implement a more complex mechanism around detection
3462     * of boot completion.
3463     *
3464     * @hide
3465     */
3466    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x08000000;
3467    /**
3468     * Set when this broadcast is for a boot upgrade, a special mode that
3469     * allows the broadcast to be sent before the system is ready and launches
3470     * the app process with no providers running in it.
3471     * @hide
3472     */
3473    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x04000000;
3474
3475    /**
3476     * @hide Flags that can't be changed with PendingIntent.
3477     */
3478    public static final int IMMUTABLE_FLAGS =
3479            FLAG_GRANT_READ_URI_PERMISSION
3480            | FLAG_GRANT_WRITE_URI_PERMISSION;
3481
3482    // ---------------------------------------------------------------------
3483    // ---------------------------------------------------------------------
3484    // toUri() and parseUri() options.
3485
3486    /**
3487     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
3488     * always has the "intent:" scheme.  This syntax can be used when you want
3489     * to later disambiguate between URIs that are intended to describe an
3490     * Intent vs. all others that should be treated as raw URIs.  When used
3491     * with {@link #parseUri}, any other scheme will result in a generic
3492     * VIEW action for that raw URI.
3493     */
3494    public static final int URI_INTENT_SCHEME = 1<<0;
3495
3496    // ---------------------------------------------------------------------
3497
3498    private String mAction;
3499    private Uri mData;
3500    private String mType;
3501    private String mPackage;
3502    private ComponentName mComponent;
3503    private int mFlags;
3504    private HashSet<String> mCategories;
3505    private Bundle mExtras;
3506    private Rect mSourceBounds;
3507    private Intent mSelector;
3508    private ClipData mClipData;
3509
3510    // ---------------------------------------------------------------------
3511
3512    /**
3513     * Create an empty intent.
3514     */
3515    public Intent() {
3516    }
3517
3518    /**
3519     * Copy constructor.
3520     */
3521    public Intent(Intent o) {
3522        this.mAction = o.mAction;
3523        this.mData = o.mData;
3524        this.mType = o.mType;
3525        this.mPackage = o.mPackage;
3526        this.mComponent = o.mComponent;
3527        this.mFlags = o.mFlags;
3528        if (o.mCategories != null) {
3529            this.mCategories = new HashSet<String>(o.mCategories);
3530        }
3531        if (o.mExtras != null) {
3532            this.mExtras = new Bundle(o.mExtras);
3533        }
3534        if (o.mSourceBounds != null) {
3535            this.mSourceBounds = new Rect(o.mSourceBounds);
3536        }
3537        if (o.mSelector != null) {
3538            this.mSelector = new Intent(o.mSelector);
3539        }
3540        if (o.mClipData != null) {
3541            this.mClipData = new ClipData(o.mClipData);
3542        }
3543    }
3544
3545    @Override
3546    public Object clone() {
3547        return new Intent(this);
3548    }
3549
3550    private Intent(Intent o, boolean all) {
3551        this.mAction = o.mAction;
3552        this.mData = o.mData;
3553        this.mType = o.mType;
3554        this.mPackage = o.mPackage;
3555        this.mComponent = o.mComponent;
3556        if (o.mCategories != null) {
3557            this.mCategories = new HashSet<String>(o.mCategories);
3558        }
3559    }
3560
3561    /**
3562     * Make a clone of only the parts of the Intent that are relevant for
3563     * filter matching: the action, data, type, component, and categories.
3564     */
3565    public Intent cloneFilter() {
3566        return new Intent(this, false);
3567    }
3568
3569    /**
3570     * Create an intent with a given action.  All other fields (data, type,
3571     * class) are null.  Note that the action <em>must</em> be in a
3572     * namespace because Intents are used globally in the system -- for
3573     * example the system VIEW action is android.intent.action.VIEW; an
3574     * application's custom action would be something like
3575     * com.google.app.myapp.CUSTOM_ACTION.
3576     *
3577     * @param action The Intent action, such as ACTION_VIEW.
3578     */
3579    public Intent(String action) {
3580        setAction(action);
3581    }
3582
3583    /**
3584     * Create an intent with a given action and for a given data url.  Note
3585     * that the action <em>must</em> be in a namespace because Intents are
3586     * used globally in the system -- for example the system VIEW action is
3587     * android.intent.action.VIEW; an application's custom action would be
3588     * something like com.google.app.myapp.CUSTOM_ACTION.
3589     *
3590     * <p><em>Note: scheme and host name matching in the Android framework is
3591     * case-sensitive, unlike the formal RFC.  As a result,
3592     * you should always ensure that you write your Uri with these elements
3593     * using lower case letters, and normalize any Uris you receive from
3594     * outside of Android to ensure the scheme and host is lower case.</em></p>
3595     *
3596     * @param action The Intent action, such as ACTION_VIEW.
3597     * @param uri The Intent data URI.
3598     */
3599    public Intent(String action, Uri uri) {
3600        setAction(action);
3601        mData = uri;
3602    }
3603
3604    /**
3605     * Create an intent for a specific component.  All other fields (action, data,
3606     * type, class) are null, though they can be modified later with explicit
3607     * calls.  This provides a convenient way to create an intent that is
3608     * intended to execute a hard-coded class name, rather than relying on the
3609     * system to find an appropriate class for you; see {@link #setComponent}
3610     * for more information on the repercussions of this.
3611     *
3612     * @param packageContext A Context of the application package implementing
3613     * this class.
3614     * @param cls The component class that is to be used for the intent.
3615     *
3616     * @see #setClass
3617     * @see #setComponent
3618     * @see #Intent(String, android.net.Uri , Context, Class)
3619     */
3620    public Intent(Context packageContext, Class<?> cls) {
3621        mComponent = new ComponentName(packageContext, cls);
3622    }
3623
3624    /**
3625     * Create an intent for a specific component with a specified action and data.
3626     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
3627     * construct the Intent and then calling {@link #setClass} to set its
3628     * class.
3629     *
3630     * <p><em>Note: scheme and host name matching in the Android framework is
3631     * case-sensitive, unlike the formal RFC.  As a result,
3632     * you should always ensure that you write your Uri with these elements
3633     * using lower case letters, and normalize any Uris you receive from
3634     * outside of Android to ensure the scheme and host is lower case.</em></p>
3635     *
3636     * @param action The Intent action, such as ACTION_VIEW.
3637     * @param uri The Intent data URI.
3638     * @param packageContext A Context of the application package implementing
3639     * this class.
3640     * @param cls The component class that is to be used for the intent.
3641     *
3642     * @see #Intent(String, android.net.Uri)
3643     * @see #Intent(Context, Class)
3644     * @see #setClass
3645     * @see #setComponent
3646     */
3647    public Intent(String action, Uri uri,
3648            Context packageContext, Class<?> cls) {
3649        setAction(action);
3650        mData = uri;
3651        mComponent = new ComponentName(packageContext, cls);
3652    }
3653
3654    /**
3655     * Create an intent to launch the main (root) activity of a task.  This
3656     * is the Intent that is started when the application's is launched from
3657     * Home.  For anything else that wants to launch an application in the
3658     * same way, it is important that they use an Intent structured the same
3659     * way, and can use this function to ensure this is the case.
3660     *
3661     * <p>The returned Intent has the given Activity component as its explicit
3662     * component, {@link #ACTION_MAIN} as its action, and includes the
3663     * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
3664     * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
3665     * to do that through {@link #addFlags(int)} on the returned Intent.
3666     *
3667     * @param mainActivity The main activity component that this Intent will
3668     * launch.
3669     * @return Returns a newly created Intent that can be used to launch the
3670     * activity as a main application entry.
3671     *
3672     * @see #setClass
3673     * @see #setComponent
3674     */
3675    public static Intent makeMainActivity(ComponentName mainActivity) {
3676        Intent intent = new Intent(ACTION_MAIN);
3677        intent.setComponent(mainActivity);
3678        intent.addCategory(CATEGORY_LAUNCHER);
3679        return intent;
3680    }
3681
3682    /**
3683     * Make an Intent for the main activity of an application, without
3684     * specifying a specific activity to run but giving a selector to find
3685     * the activity.  This results in a final Intent that is structured
3686     * the same as when the application is launched from
3687     * Home.  For anything else that wants to launch an application in the
3688     * same way, it is important that they use an Intent structured the same
3689     * way, and can use this function to ensure this is the case.
3690     *
3691     * <p>The returned Intent has {@link #ACTION_MAIN} as its action, and includes the
3692     * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
3693     * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
3694     * to do that through {@link #addFlags(int)} on the returned Intent.
3695     *
3696     * @param selectorAction The action name of the Intent's selector.
3697     * @param selectorCategory The name of a category to add to the Intent's
3698     * selector.
3699     * @return Returns a newly created Intent that can be used to launch the
3700     * activity as a main application entry.
3701     *
3702     * @see #setSelector(Intent)
3703     */
3704    public static Intent makeMainSelectorActivity(String selectorAction,
3705            String selectorCategory) {
3706        Intent intent = new Intent(ACTION_MAIN);
3707        intent.addCategory(CATEGORY_LAUNCHER);
3708        Intent selector = new Intent();
3709        selector.setAction(selectorAction);
3710        selector.addCategory(selectorCategory);
3711        intent.setSelector(selector);
3712        return intent;
3713    }
3714
3715    /**
3716     * Make an Intent that can be used to re-launch an application's task
3717     * in its base state.  This is like {@link #makeMainActivity(ComponentName)},
3718     * but also sets the flags {@link #FLAG_ACTIVITY_NEW_TASK} and
3719     * {@link #FLAG_ACTIVITY_CLEAR_TASK}.
3720     *
3721     * @param mainActivity The activity component that is the root of the
3722     * task; this is the activity that has been published in the application's
3723     * manifest as the main launcher icon.
3724     *
3725     * @return Returns a newly created Intent that can be used to relaunch the
3726     * activity's task in its root state.
3727     */
3728    public static Intent makeRestartActivityTask(ComponentName mainActivity) {
3729        Intent intent = makeMainActivity(mainActivity);
3730        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
3731                | Intent.FLAG_ACTIVITY_CLEAR_TASK);
3732        return intent;
3733    }
3734
3735    /**
3736     * Call {@link #parseUri} with 0 flags.
3737     * @deprecated Use {@link #parseUri} instead.
3738     */
3739    @Deprecated
3740    public static Intent getIntent(String uri) throws URISyntaxException {
3741        return parseUri(uri, 0);
3742    }
3743
3744    /**
3745     * Create an intent from a URI.  This URI may encode the action,
3746     * category, and other intent fields, if it was returned by
3747     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
3748     * will be the entire URI and its action will be ACTION_VIEW.
3749     *
3750     * <p>The URI given here must not be relative -- that is, it must include
3751     * the scheme and full path.
3752     *
3753     * @param uri The URI to turn into an Intent.
3754     * @param flags Additional processing flags.  Either 0 or
3755     * {@link #URI_INTENT_SCHEME}.
3756     *
3757     * @return Intent The newly created Intent object.
3758     *
3759     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
3760     * it bad (as parsed by the Uri class) or the Intent data within the
3761     * URI is invalid.
3762     *
3763     * @see #toUri
3764     */
3765    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
3766        int i = 0;
3767        try {
3768            // Validate intent scheme for if requested.
3769            if ((flags&URI_INTENT_SCHEME) != 0) {
3770                if (!uri.startsWith("intent:")) {
3771                    Intent intent = new Intent(ACTION_VIEW);
3772                    try {
3773                        intent.setData(Uri.parse(uri));
3774                    } catch (IllegalArgumentException e) {
3775                        throw new URISyntaxException(uri, e.getMessage());
3776                    }
3777                    return intent;
3778                }
3779            }
3780
3781            // simple case
3782            i = uri.lastIndexOf("#");
3783            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
3784
3785            // old format Intent URI
3786            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
3787
3788            // new format
3789            Intent intent = new Intent(ACTION_VIEW);
3790            Intent baseIntent = intent;
3791
3792            // fetch data part, if present
3793            String data = i >= 0 ? uri.substring(0, i) : null;
3794            String scheme = null;
3795            i += "#Intent;".length();
3796
3797            // loop over contents of Intent, all name=value;
3798            while (!uri.startsWith("end", i)) {
3799                int eq = uri.indexOf('=', i);
3800                if (eq < 0) eq = i-1;
3801                int semi = uri.indexOf(';', i);
3802                String value = eq < semi ? Uri.decode(uri.substring(eq + 1, semi)) : "";
3803
3804                // action
3805                if (uri.startsWith("action=", i)) {
3806                    intent.setAction(value);
3807                }
3808
3809                // categories
3810                else if (uri.startsWith("category=", i)) {
3811                    intent.addCategory(value);
3812                }
3813
3814                // type
3815                else if (uri.startsWith("type=", i)) {
3816                    intent.mType = value;
3817                }
3818
3819                // launch flags
3820                else if (uri.startsWith("launchFlags=", i)) {
3821                    intent.mFlags = Integer.decode(value).intValue();
3822                }
3823
3824                // package
3825                else if (uri.startsWith("package=", i)) {
3826                    intent.mPackage = value;
3827                }
3828
3829                // component
3830                else if (uri.startsWith("component=", i)) {
3831                    intent.mComponent = ComponentName.unflattenFromString(value);
3832                }
3833
3834                // scheme
3835                else if (uri.startsWith("scheme=", i)) {
3836                    scheme = value;
3837                }
3838
3839                // source bounds
3840                else if (uri.startsWith("sourceBounds=", i)) {
3841                    intent.mSourceBounds = Rect.unflattenFromString(value);
3842                }
3843
3844                // selector
3845                else if (semi == (i+3) && uri.startsWith("SEL", i)) {
3846                    intent = new Intent();
3847                }
3848
3849                // extra
3850                else {
3851                    String key = Uri.decode(uri.substring(i + 2, eq));
3852                    // create Bundle if it doesn't already exist
3853                    if (intent.mExtras == null) intent.mExtras = new Bundle();
3854                    Bundle b = intent.mExtras;
3855                    // add EXTRA
3856                    if      (uri.startsWith("S.", i)) b.putString(key, value);
3857                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
3858                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
3859                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
3860                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
3861                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
3862                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
3863                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
3864                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
3865                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
3866                }
3867
3868                // move to the next item
3869                i = semi + 1;
3870            }
3871
3872            if (intent != baseIntent) {
3873                // The Intent had a selector; fix it up.
3874                baseIntent.setSelector(intent);
3875                intent = baseIntent;
3876            }
3877
3878            if (data != null) {
3879                if (data.startsWith("intent:")) {
3880                    data = data.substring(7);
3881                    if (scheme != null) {
3882                        data = scheme + ':' + data;
3883                    }
3884                }
3885
3886                if (data.length() > 0) {
3887                    try {
3888                        intent.mData = Uri.parse(data);
3889                    } catch (IllegalArgumentException e) {
3890                        throw new URISyntaxException(uri, e.getMessage());
3891                    }
3892                }
3893            }
3894
3895            return intent;
3896
3897        } catch (IndexOutOfBoundsException e) {
3898            throw new URISyntaxException(uri, "illegal Intent URI format", i);
3899        }
3900    }
3901
3902    public static Intent getIntentOld(String uri) throws URISyntaxException {
3903        Intent intent;
3904
3905        int i = uri.lastIndexOf('#');
3906        if (i >= 0) {
3907            String action = null;
3908            final int intentFragmentStart = i;
3909            boolean isIntentFragment = false;
3910
3911            i++;
3912
3913            if (uri.regionMatches(i, "action(", 0, 7)) {
3914                isIntentFragment = true;
3915                i += 7;
3916                int j = uri.indexOf(')', i);
3917                action = uri.substring(i, j);
3918                i = j + 1;
3919            }
3920
3921            intent = new Intent(action);
3922
3923            if (uri.regionMatches(i, "categories(", 0, 11)) {
3924                isIntentFragment = true;
3925                i += 11;
3926                int j = uri.indexOf(')', i);
3927                while (i < j) {
3928                    int sep = uri.indexOf('!', i);
3929                    if (sep < 0) sep = j;
3930                    if (i < sep) {
3931                        intent.addCategory(uri.substring(i, sep));
3932                    }
3933                    i = sep + 1;
3934                }
3935                i = j + 1;
3936            }
3937
3938            if (uri.regionMatches(i, "type(", 0, 5)) {
3939                isIntentFragment = true;
3940                i += 5;
3941                int j = uri.indexOf(')', i);
3942                intent.mType = uri.substring(i, j);
3943                i = j + 1;
3944            }
3945
3946            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
3947                isIntentFragment = true;
3948                i += 12;
3949                int j = uri.indexOf(')', i);
3950                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
3951                i = j + 1;
3952            }
3953
3954            if (uri.regionMatches(i, "component(", 0, 10)) {
3955                isIntentFragment = true;
3956                i += 10;
3957                int j = uri.indexOf(')', i);
3958                int sep = uri.indexOf('!', i);
3959                if (sep >= 0 && sep < j) {
3960                    String pkg = uri.substring(i, sep);
3961                    String cls = uri.substring(sep + 1, j);
3962                    intent.mComponent = new ComponentName(pkg, cls);
3963                }
3964                i = j + 1;
3965            }
3966
3967            if (uri.regionMatches(i, "extras(", 0, 7)) {
3968                isIntentFragment = true;
3969                i += 7;
3970
3971                final int closeParen = uri.indexOf(')', i);
3972                if (closeParen == -1) throw new URISyntaxException(uri,
3973                        "EXTRA missing trailing ')'", i);
3974
3975                while (i < closeParen) {
3976                    // fetch the key value
3977                    int j = uri.indexOf('=', i);
3978                    if (j <= i + 1 || i >= closeParen) {
3979                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
3980                    }
3981                    char type = uri.charAt(i);
3982                    i++;
3983                    String key = uri.substring(i, j);
3984                    i = j + 1;
3985
3986                    // get type-value
3987                    j = uri.indexOf('!', i);
3988                    if (j == -1 || j >= closeParen) j = closeParen;
3989                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
3990                    String value = uri.substring(i, j);
3991                    i = j;
3992
3993                    // create Bundle if it doesn't already exist
3994                    if (intent.mExtras == null) intent.mExtras = new Bundle();
3995
3996                    // add item to bundle
3997                    try {
3998                        switch (type) {
3999                            case 'S':
4000                                intent.mExtras.putString(key, Uri.decode(value));
4001                                break;
4002                            case 'B':
4003                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
4004                                break;
4005                            case 'b':
4006                                intent.mExtras.putByte(key, Byte.parseByte(value));
4007                                break;
4008                            case 'c':
4009                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
4010                                break;
4011                            case 'd':
4012                                intent.mExtras.putDouble(key, Double.parseDouble(value));
4013                                break;
4014                            case 'f':
4015                                intent.mExtras.putFloat(key, Float.parseFloat(value));
4016                                break;
4017                            case 'i':
4018                                intent.mExtras.putInt(key, Integer.parseInt(value));
4019                                break;
4020                            case 'l':
4021                                intent.mExtras.putLong(key, Long.parseLong(value));
4022                                break;
4023                            case 's':
4024                                intent.mExtras.putShort(key, Short.parseShort(value));
4025                                break;
4026                            default:
4027                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
4028                        }
4029                    } catch (NumberFormatException e) {
4030                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
4031                    }
4032
4033                    char ch = uri.charAt(i);
4034                    if (ch == ')') break;
4035                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
4036                    i++;
4037                }
4038            }
4039
4040            if (isIntentFragment) {
4041                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
4042            } else {
4043                intent.mData = Uri.parse(uri);
4044            }
4045
4046            if (intent.mAction == null) {
4047                // By default, if no action is specified, then use VIEW.
4048                intent.mAction = ACTION_VIEW;
4049            }
4050
4051        } else {
4052            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
4053        }
4054
4055        return intent;
4056    }
4057
4058    /**
4059     * Retrieve the general action to be performed, such as
4060     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
4061     * the information in the intent should be interpreted -- most importantly,
4062     * what to do with the data returned by {@link #getData}.
4063     *
4064     * @return The action of this intent or null if none is specified.
4065     *
4066     * @see #setAction
4067     */
4068    public String getAction() {
4069        return mAction;
4070    }
4071
4072    /**
4073     * Retrieve data this intent is operating on.  This URI specifies the name
4074     * of the data; often it uses the content: scheme, specifying data in a
4075     * content provider.  Other schemes may be handled by specific activities,
4076     * such as http: by the web browser.
4077     *
4078     * @return The URI of the data this intent is targeting or null.
4079     *
4080     * @see #getScheme
4081     * @see #setData
4082     */
4083    public Uri getData() {
4084        return mData;
4085    }
4086
4087    /**
4088     * The same as {@link #getData()}, but returns the URI as an encoded
4089     * String.
4090     */
4091    public String getDataString() {
4092        return mData != null ? mData.toString() : null;
4093    }
4094
4095    /**
4096     * Return the scheme portion of the intent's data.  If the data is null or
4097     * does not include a scheme, null is returned.  Otherwise, the scheme
4098     * prefix without the final ':' is returned, i.e. "http".
4099     *
4100     * <p>This is the same as calling getData().getScheme() (and checking for
4101     * null data).
4102     *
4103     * @return The scheme of this intent.
4104     *
4105     * @see #getData
4106     */
4107    public String getScheme() {
4108        return mData != null ? mData.getScheme() : null;
4109    }
4110
4111    /**
4112     * Retrieve any explicit MIME type included in the intent.  This is usually
4113     * null, as the type is determined by the intent data.
4114     *
4115     * @return If a type was manually set, it is returned; else null is
4116     *         returned.
4117     *
4118     * @see #resolveType(ContentResolver)
4119     * @see #setType
4120     */
4121    public String getType() {
4122        return mType;
4123    }
4124
4125    /**
4126     * Return the MIME data type of this intent.  If the type field is
4127     * explicitly set, that is simply returned.  Otherwise, if the data is set,
4128     * the type of that data is returned.  If neither fields are set, a null is
4129     * returned.
4130     *
4131     * @return The MIME type of this intent.
4132     *
4133     * @see #getType
4134     * @see #resolveType(ContentResolver)
4135     */
4136    public String resolveType(Context context) {
4137        return resolveType(context.getContentResolver());
4138    }
4139
4140    /**
4141     * Return the MIME data type of this intent.  If the type field is
4142     * explicitly set, that is simply returned.  Otherwise, if the data is set,
4143     * the type of that data is returned.  If neither fields are set, a null is
4144     * returned.
4145     *
4146     * @param resolver A ContentResolver that can be used to determine the MIME
4147     *                 type of the intent's data.
4148     *
4149     * @return The MIME type of this intent.
4150     *
4151     * @see #getType
4152     * @see #resolveType(Context)
4153     */
4154    public String resolveType(ContentResolver resolver) {
4155        if (mType != null) {
4156            return mType;
4157        }
4158        if (mData != null) {
4159            if ("content".equals(mData.getScheme())) {
4160                return resolver.getType(mData);
4161            }
4162        }
4163        return null;
4164    }
4165
4166    /**
4167     * Return the MIME data type of this intent, only if it will be needed for
4168     * intent resolution.  This is not generally useful for application code;
4169     * it is used by the frameworks for communicating with back-end system
4170     * services.
4171     *
4172     * @param resolver A ContentResolver that can be used to determine the MIME
4173     *                 type of the intent's data.
4174     *
4175     * @return The MIME type of this intent, or null if it is unknown or not
4176     *         needed.
4177     */
4178    public String resolveTypeIfNeeded(ContentResolver resolver) {
4179        if (mComponent != null) {
4180            return mType;
4181        }
4182        return resolveType(resolver);
4183    }
4184
4185    /**
4186     * Check if a category exists in the intent.
4187     *
4188     * @param category The category to check.
4189     *
4190     * @return boolean True if the intent contains the category, else false.
4191     *
4192     * @see #getCategories
4193     * @see #addCategory
4194     */
4195    public boolean hasCategory(String category) {
4196        return mCategories != null && mCategories.contains(category);
4197    }
4198
4199    /**
4200     * Return the set of all categories in the intent.  If there are no categories,
4201     * returns NULL.
4202     *
4203     * @return The set of categories you can examine.  Do not modify!
4204     *
4205     * @see #hasCategory
4206     * @see #addCategory
4207     */
4208    public Set<String> getCategories() {
4209        return mCategories;
4210    }
4211
4212    /**
4213     * Return the specific selector associated with this Intent.  If there is
4214     * none, returns null.  See {@link #setSelector} for more information.
4215     *
4216     * @see #setSelector
4217     */
4218    public Intent getSelector() {
4219        return mSelector;
4220    }
4221
4222    /**
4223     * Return the {@link ClipData} associated with this Intent.  If there is
4224     * none, returns null.  See {@link #setClipData} for more information.
4225     *
4226     * @see #setClipData;
4227     */
4228    public ClipData getClipData() {
4229        return mClipData;
4230    }
4231
4232    /**
4233     * Sets the ClassLoader that will be used when unmarshalling
4234     * any Parcelable values from the extras of this Intent.
4235     *
4236     * @param loader a ClassLoader, or null to use the default loader
4237     * at the time of unmarshalling.
4238     */
4239    public void setExtrasClassLoader(ClassLoader loader) {
4240        if (mExtras != null) {
4241            mExtras.setClassLoader(loader);
4242        }
4243    }
4244
4245    /**
4246     * Returns true if an extra value is associated with the given name.
4247     * @param name the extra's name
4248     * @return true if the given extra is present.
4249     */
4250    public boolean hasExtra(String name) {
4251        return mExtras != null && mExtras.containsKey(name);
4252    }
4253
4254    /**
4255     * Returns true if the Intent's extras contain a parcelled file descriptor.
4256     * @return true if the Intent contains a parcelled file descriptor.
4257     */
4258    public boolean hasFileDescriptors() {
4259        return mExtras != null && mExtras.hasFileDescriptors();
4260    }
4261
4262    /** @hide */
4263    public void setAllowFds(boolean allowFds) {
4264        if (mExtras != null) {
4265            mExtras.setAllowFds(allowFds);
4266        }
4267    }
4268
4269    /**
4270     * Retrieve extended data from the intent.
4271     *
4272     * @param name The name of the desired item.
4273     *
4274     * @return the value of an item that previously added with putExtra()
4275     * or null if none was found.
4276     *
4277     * @deprecated
4278     * @hide
4279     */
4280    @Deprecated
4281    public Object getExtra(String name) {
4282        return getExtra(name, null);
4283    }
4284
4285    /**
4286     * Retrieve extended data from the intent.
4287     *
4288     * @param name The name of the desired item.
4289     * @param defaultValue the value to be returned if no value of the desired
4290     * type is stored with the given name.
4291     *
4292     * @return the value of an item that previously added with putExtra()
4293     * or the default value if none was found.
4294     *
4295     * @see #putExtra(String, boolean)
4296     */
4297    public boolean getBooleanExtra(String name, boolean defaultValue) {
4298        return mExtras == null ? defaultValue :
4299            mExtras.getBoolean(name, defaultValue);
4300    }
4301
4302    /**
4303     * Retrieve extended data from the intent.
4304     *
4305     * @param name The name of the desired item.
4306     * @param defaultValue the value to be returned if no value of the desired
4307     * type is stored with the given name.
4308     *
4309     * @return the value of an item that previously added with putExtra()
4310     * or the default value if none was found.
4311     *
4312     * @see #putExtra(String, byte)
4313     */
4314    public byte getByteExtra(String name, byte defaultValue) {
4315        return mExtras == null ? defaultValue :
4316            mExtras.getByte(name, defaultValue);
4317    }
4318
4319    /**
4320     * Retrieve extended data from the intent.
4321     *
4322     * @param name The name of the desired item.
4323     * @param defaultValue the value to be returned if no value of the desired
4324     * type is stored with the given name.
4325     *
4326     * @return the value of an item that previously added with putExtra()
4327     * or the default value if none was found.
4328     *
4329     * @see #putExtra(String, short)
4330     */
4331    public short getShortExtra(String name, short defaultValue) {
4332        return mExtras == null ? defaultValue :
4333            mExtras.getShort(name, defaultValue);
4334    }
4335
4336    /**
4337     * Retrieve extended data from the intent.
4338     *
4339     * @param name The name of the desired item.
4340     * @param defaultValue the value to be returned if no value of the desired
4341     * type is stored with the given name.
4342     *
4343     * @return the value of an item that previously added with putExtra()
4344     * or the default value if none was found.
4345     *
4346     * @see #putExtra(String, char)
4347     */
4348    public char getCharExtra(String name, char defaultValue) {
4349        return mExtras == null ? defaultValue :
4350            mExtras.getChar(name, defaultValue);
4351    }
4352
4353    /**
4354     * Retrieve extended data from the intent.
4355     *
4356     * @param name The name of the desired item.
4357     * @param defaultValue the value to be returned if no value of the desired
4358     * type is stored with the given name.
4359     *
4360     * @return the value of an item that previously added with putExtra()
4361     * or the default value if none was found.
4362     *
4363     * @see #putExtra(String, int)
4364     */
4365    public int getIntExtra(String name, int defaultValue) {
4366        return mExtras == null ? defaultValue :
4367            mExtras.getInt(name, defaultValue);
4368    }
4369
4370    /**
4371     * Retrieve extended data from the intent.
4372     *
4373     * @param name The name of the desired item.
4374     * @param defaultValue the value to be returned if no value of the desired
4375     * type is stored with the given name.
4376     *
4377     * @return the value of an item that previously added with putExtra()
4378     * or the default value if none was found.
4379     *
4380     * @see #putExtra(String, long)
4381     */
4382    public long getLongExtra(String name, long defaultValue) {
4383        return mExtras == null ? defaultValue :
4384            mExtras.getLong(name, defaultValue);
4385    }
4386
4387    /**
4388     * Retrieve extended data from the intent.
4389     *
4390     * @param name The name of the desired item.
4391     * @param defaultValue the value to be returned if no value of the desired
4392     * type is stored with the given name.
4393     *
4394     * @return the value of an item that previously added with putExtra(),
4395     * or the default value if no such item is present
4396     *
4397     * @see #putExtra(String, float)
4398     */
4399    public float getFloatExtra(String name, float defaultValue) {
4400        return mExtras == null ? defaultValue :
4401            mExtras.getFloat(name, defaultValue);
4402    }
4403
4404    /**
4405     * Retrieve extended data from the intent.
4406     *
4407     * @param name The name of the desired item.
4408     * @param defaultValue the value to be returned if no value of the desired
4409     * type is stored with the given name.
4410     *
4411     * @return the value of an item that previously added with putExtra()
4412     * or the default value if none was found.
4413     *
4414     * @see #putExtra(String, double)
4415     */
4416    public double getDoubleExtra(String name, double defaultValue) {
4417        return mExtras == null ? defaultValue :
4418            mExtras.getDouble(name, defaultValue);
4419    }
4420
4421    /**
4422     * Retrieve extended data from the intent.
4423     *
4424     * @param name The name of the desired item.
4425     *
4426     * @return the value of an item that previously added with putExtra()
4427     * or null if no String value was found.
4428     *
4429     * @see #putExtra(String, String)
4430     */
4431    public String getStringExtra(String name) {
4432        return mExtras == null ? null : mExtras.getString(name);
4433    }
4434
4435    /**
4436     * Retrieve extended data from the intent.
4437     *
4438     * @param name The name of the desired item.
4439     *
4440     * @return the value of an item that previously added with putExtra()
4441     * or null if no CharSequence value was found.
4442     *
4443     * @see #putExtra(String, CharSequence)
4444     */
4445    public CharSequence getCharSequenceExtra(String name) {
4446        return mExtras == null ? null : mExtras.getCharSequence(name);
4447    }
4448
4449    /**
4450     * Retrieve extended data from the intent.
4451     *
4452     * @param name The name of the desired item.
4453     *
4454     * @return the value of an item that previously added with putExtra()
4455     * or null if no Parcelable value was found.
4456     *
4457     * @see #putExtra(String, Parcelable)
4458     */
4459    public <T extends Parcelable> T getParcelableExtra(String name) {
4460        return mExtras == null ? null : mExtras.<T>getParcelable(name);
4461    }
4462
4463    /**
4464     * Retrieve extended data from the intent.
4465     *
4466     * @param name The name of the desired item.
4467     *
4468     * @return the value of an item that previously added with putExtra()
4469     * or null if no Parcelable[] value was found.
4470     *
4471     * @see #putExtra(String, Parcelable[])
4472     */
4473    public Parcelable[] getParcelableArrayExtra(String name) {
4474        return mExtras == null ? null : mExtras.getParcelableArray(name);
4475    }
4476
4477    /**
4478     * Retrieve extended data from the intent.
4479     *
4480     * @param name The name of the desired item.
4481     *
4482     * @return the value of an item that previously added with putExtra()
4483     * or null if no ArrayList<Parcelable> value was found.
4484     *
4485     * @see #putParcelableArrayListExtra(String, ArrayList)
4486     */
4487    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
4488        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
4489    }
4490
4491    /**
4492     * Retrieve extended data from the intent.
4493     *
4494     * @param name The name of the desired item.
4495     *
4496     * @return the value of an item that previously added with putExtra()
4497     * or null if no Serializable value was found.
4498     *
4499     * @see #putExtra(String, Serializable)
4500     */
4501    public Serializable getSerializableExtra(String name) {
4502        return mExtras == null ? null : mExtras.getSerializable(name);
4503    }
4504
4505    /**
4506     * Retrieve extended data from the intent.
4507     *
4508     * @param name The name of the desired item.
4509     *
4510     * @return the value of an item that previously added with putExtra()
4511     * or null if no ArrayList<Integer> value was found.
4512     *
4513     * @see #putIntegerArrayListExtra(String, ArrayList)
4514     */
4515    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
4516        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
4517    }
4518
4519    /**
4520     * Retrieve extended data from the intent.
4521     *
4522     * @param name The name of the desired item.
4523     *
4524     * @return the value of an item that previously added with putExtra()
4525     * or null if no ArrayList<String> value was found.
4526     *
4527     * @see #putStringArrayListExtra(String, ArrayList)
4528     */
4529    public ArrayList<String> getStringArrayListExtra(String name) {
4530        return mExtras == null ? null : mExtras.getStringArrayList(name);
4531    }
4532
4533    /**
4534     * Retrieve extended data from the intent.
4535     *
4536     * @param name The name of the desired item.
4537     *
4538     * @return the value of an item that previously added with putExtra()
4539     * or null if no ArrayList<CharSequence> value was found.
4540     *
4541     * @see #putCharSequenceArrayListExtra(String, ArrayList)
4542     */
4543    public ArrayList<CharSequence> getCharSequenceArrayListExtra(String name) {
4544        return mExtras == null ? null : mExtras.getCharSequenceArrayList(name);
4545    }
4546
4547    /**
4548     * Retrieve extended data from the intent.
4549     *
4550     * @param name The name of the desired item.
4551     *
4552     * @return the value of an item that previously added with putExtra()
4553     * or null if no boolean array value was found.
4554     *
4555     * @see #putExtra(String, boolean[])
4556     */
4557    public boolean[] getBooleanArrayExtra(String name) {
4558        return mExtras == null ? null : mExtras.getBooleanArray(name);
4559    }
4560
4561    /**
4562     * Retrieve extended data from the intent.
4563     *
4564     * @param name The name of the desired item.
4565     *
4566     * @return the value of an item that previously added with putExtra()
4567     * or null if no byte array value was found.
4568     *
4569     * @see #putExtra(String, byte[])
4570     */
4571    public byte[] getByteArrayExtra(String name) {
4572        return mExtras == null ? null : mExtras.getByteArray(name);
4573    }
4574
4575    /**
4576     * Retrieve extended data from the intent.
4577     *
4578     * @param name The name of the desired item.
4579     *
4580     * @return the value of an item that previously added with putExtra()
4581     * or null if no short array value was found.
4582     *
4583     * @see #putExtra(String, short[])
4584     */
4585    public short[] getShortArrayExtra(String name) {
4586        return mExtras == null ? null : mExtras.getShortArray(name);
4587    }
4588
4589    /**
4590     * Retrieve extended data from the intent.
4591     *
4592     * @param name The name of the desired item.
4593     *
4594     * @return the value of an item that previously added with putExtra()
4595     * or null if no char array value was found.
4596     *
4597     * @see #putExtra(String, char[])
4598     */
4599    public char[] getCharArrayExtra(String name) {
4600        return mExtras == null ? null : mExtras.getCharArray(name);
4601    }
4602
4603    /**
4604     * Retrieve extended data from the intent.
4605     *
4606     * @param name The name of the desired item.
4607     *
4608     * @return the value of an item that previously added with putExtra()
4609     * or null if no int array value was found.
4610     *
4611     * @see #putExtra(String, int[])
4612     */
4613    public int[] getIntArrayExtra(String name) {
4614        return mExtras == null ? null : mExtras.getIntArray(name);
4615    }
4616
4617    /**
4618     * Retrieve extended data from the intent.
4619     *
4620     * @param name The name of the desired item.
4621     *
4622     * @return the value of an item that previously added with putExtra()
4623     * or null if no long array value was found.
4624     *
4625     * @see #putExtra(String, long[])
4626     */
4627    public long[] getLongArrayExtra(String name) {
4628        return mExtras == null ? null : mExtras.getLongArray(name);
4629    }
4630
4631    /**
4632     * Retrieve extended data from the intent.
4633     *
4634     * @param name The name of the desired item.
4635     *
4636     * @return the value of an item that previously added with putExtra()
4637     * or null if no float array value was found.
4638     *
4639     * @see #putExtra(String, float[])
4640     */
4641    public float[] getFloatArrayExtra(String name) {
4642        return mExtras == null ? null : mExtras.getFloatArray(name);
4643    }
4644
4645    /**
4646     * Retrieve extended data from the intent.
4647     *
4648     * @param name The name of the desired item.
4649     *
4650     * @return the value of an item that previously added with putExtra()
4651     * or null if no double array value was found.
4652     *
4653     * @see #putExtra(String, double[])
4654     */
4655    public double[] getDoubleArrayExtra(String name) {
4656        return mExtras == null ? null : mExtras.getDoubleArray(name);
4657    }
4658
4659    /**
4660     * Retrieve extended data from the intent.
4661     *
4662     * @param name The name of the desired item.
4663     *
4664     * @return the value of an item that previously added with putExtra()
4665     * or null if no String array value was found.
4666     *
4667     * @see #putExtra(String, String[])
4668     */
4669    public String[] getStringArrayExtra(String name) {
4670        return mExtras == null ? null : mExtras.getStringArray(name);
4671    }
4672
4673    /**
4674     * Retrieve extended data from the intent.
4675     *
4676     * @param name The name of the desired item.
4677     *
4678     * @return the value of an item that previously added with putExtra()
4679     * or null if no CharSequence array value was found.
4680     *
4681     * @see #putExtra(String, CharSequence[])
4682     */
4683    public CharSequence[] getCharSequenceArrayExtra(String name) {
4684        return mExtras == null ? null : mExtras.getCharSequenceArray(name);
4685    }
4686
4687    /**
4688     * Retrieve extended data from the intent.
4689     *
4690     * @param name The name of the desired item.
4691     *
4692     * @return the value of an item that previously added with putExtra()
4693     * or null if no Bundle value was found.
4694     *
4695     * @see #putExtra(String, Bundle)
4696     */
4697    public Bundle getBundleExtra(String name) {
4698        return mExtras == null ? null : mExtras.getBundle(name);
4699    }
4700
4701    /**
4702     * Retrieve extended data from the intent.
4703     *
4704     * @param name The name of the desired item.
4705     *
4706     * @return the value of an item that previously added with putExtra()
4707     * or null if no IBinder value was found.
4708     *
4709     * @see #putExtra(String, IBinder)
4710     *
4711     * @deprecated
4712     * @hide
4713     */
4714    @Deprecated
4715    public IBinder getIBinderExtra(String name) {
4716        return mExtras == null ? null : mExtras.getIBinder(name);
4717    }
4718
4719    /**
4720     * Retrieve extended data from the intent.
4721     *
4722     * @param name The name of the desired item.
4723     * @param defaultValue The default value to return in case no item is
4724     * associated with the key 'name'
4725     *
4726     * @return the value of an item that previously added with putExtra()
4727     * or defaultValue if none was found.
4728     *
4729     * @see #putExtra
4730     *
4731     * @deprecated
4732     * @hide
4733     */
4734    @Deprecated
4735    public Object getExtra(String name, Object defaultValue) {
4736        Object result = defaultValue;
4737        if (mExtras != null) {
4738            Object result2 = mExtras.get(name);
4739            if (result2 != null) {
4740                result = result2;
4741            }
4742        }
4743
4744        return result;
4745    }
4746
4747    /**
4748     * Retrieves a map of extended data from the intent.
4749     *
4750     * @return the map of all extras previously added with putExtra(),
4751     * or null if none have been added.
4752     */
4753    public Bundle getExtras() {
4754        return (mExtras != null)
4755                ? new Bundle(mExtras)
4756                : null;
4757    }
4758
4759    /**
4760     * Retrieve any special flags associated with this intent.  You will
4761     * normally just set them with {@link #setFlags} and let the system
4762     * take the appropriate action with them.
4763     *
4764     * @return int The currently set flags.
4765     *
4766     * @see #setFlags
4767     */
4768    public int getFlags() {
4769        return mFlags;
4770    }
4771
4772    /** @hide */
4773    public boolean isExcludingStopped() {
4774        return (mFlags&(FLAG_EXCLUDE_STOPPED_PACKAGES|FLAG_INCLUDE_STOPPED_PACKAGES))
4775                == FLAG_EXCLUDE_STOPPED_PACKAGES;
4776    }
4777
4778    /**
4779     * Retrieve the application package name this Intent is limited to.  When
4780     * resolving an Intent, if non-null this limits the resolution to only
4781     * components in the given application package.
4782     *
4783     * @return The name of the application package for the Intent.
4784     *
4785     * @see #resolveActivity
4786     * @see #setPackage
4787     */
4788    public String getPackage() {
4789        return mPackage;
4790    }
4791
4792    /**
4793     * Retrieve the concrete component associated with the intent.  When receiving
4794     * an intent, this is the component that was found to best handle it (that is,
4795     * yourself) and will always be non-null; in all other cases it will be
4796     * null unless explicitly set.
4797     *
4798     * @return The name of the application component to handle the intent.
4799     *
4800     * @see #resolveActivity
4801     * @see #setComponent
4802     */
4803    public ComponentName getComponent() {
4804        return mComponent;
4805    }
4806
4807    /**
4808     * Get the bounds of the sender of this intent, in screen coordinates.  This can be
4809     * used as a hint to the receiver for animations and the like.  Null means that there
4810     * is no source bounds.
4811     */
4812    public Rect getSourceBounds() {
4813        return mSourceBounds;
4814    }
4815
4816    /**
4817     * Return the Activity component that should be used to handle this intent.
4818     * The appropriate component is determined based on the information in the
4819     * intent, evaluated as follows:
4820     *
4821     * <p>If {@link #getComponent} returns an explicit class, that is returned
4822     * without any further consideration.
4823     *
4824     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
4825     * category to be considered.
4826     *
4827     * <p>If {@link #getAction} is non-NULL, the activity must handle this
4828     * action.
4829     *
4830     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
4831     * this type.
4832     *
4833     * <p>If {@link #addCategory} has added any categories, the activity must
4834     * handle ALL of the categories specified.
4835     *
4836     * <p>If {@link #getPackage} is non-NULL, only activity components in
4837     * that application package will be considered.
4838     *
4839     * <p>If there are no activities that satisfy all of these conditions, a
4840     * null string is returned.
4841     *
4842     * <p>If multiple activities are found to satisfy the intent, the one with
4843     * the highest priority will be used.  If there are multiple activities
4844     * with the same priority, the system will either pick the best activity
4845     * based on user preference, or resolve to a system class that will allow
4846     * the user to pick an activity and forward from there.
4847     *
4848     * <p>This method is implemented simply by calling
4849     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
4850     * true.</p>
4851     * <p> This API is called for you as part of starting an activity from an
4852     * intent.  You do not normally need to call it yourself.</p>
4853     *
4854     * @param pm The package manager with which to resolve the Intent.
4855     *
4856     * @return Name of the component implementing an activity that can
4857     *         display the intent.
4858     *
4859     * @see #setComponent
4860     * @see #getComponent
4861     * @see #resolveActivityInfo
4862     */
4863    public ComponentName resolveActivity(PackageManager pm) {
4864        if (mComponent != null) {
4865            return mComponent;
4866        }
4867
4868        ResolveInfo info = pm.resolveActivity(
4869            this, PackageManager.MATCH_DEFAULT_ONLY);
4870        if (info != null) {
4871            return new ComponentName(
4872                    info.activityInfo.applicationInfo.packageName,
4873                    info.activityInfo.name);
4874        }
4875
4876        return null;
4877    }
4878
4879    /**
4880     * Resolve the Intent into an {@link ActivityInfo}
4881     * describing the activity that should execute the intent.  Resolution
4882     * follows the same rules as described for {@link #resolveActivity}, but
4883     * you get back the completely information about the resolved activity
4884     * instead of just its class name.
4885     *
4886     * @param pm The package manager with which to resolve the Intent.
4887     * @param flags Addition information to retrieve as per
4888     * {@link PackageManager#getActivityInfo(ComponentName, int)
4889     * PackageManager.getActivityInfo()}.
4890     *
4891     * @return PackageManager.ActivityInfo
4892     *
4893     * @see #resolveActivity
4894     */
4895    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
4896        ActivityInfo ai = null;
4897        if (mComponent != null) {
4898            try {
4899                ai = pm.getActivityInfo(mComponent, flags);
4900            } catch (PackageManager.NameNotFoundException e) {
4901                // ignore
4902            }
4903        } else {
4904            ResolveInfo info = pm.resolveActivity(
4905                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
4906            if (info != null) {
4907                ai = info.activityInfo;
4908            }
4909        }
4910
4911        return ai;
4912    }
4913
4914    /**
4915     * Set the general action to be performed.
4916     *
4917     * @param action An action name, such as ACTION_VIEW.  Application-specific
4918     *               actions should be prefixed with the vendor's package name.
4919     *
4920     * @return Returns the same Intent object, for chaining multiple calls
4921     * into a single statement.
4922     *
4923     * @see #getAction
4924     */
4925    public Intent setAction(String action) {
4926        mAction = action != null ? action.intern() : null;
4927        return this;
4928    }
4929
4930    /**
4931     * Set the data this intent is operating on.  This method automatically
4932     * clears any type that was previously set by {@link #setType} or
4933     * {@link #setTypeAndNormalize}.
4934     *
4935     * <p><em>Note: scheme matching in the Android framework is
4936     * case-sensitive, unlike the formal RFC. As a result,
4937     * you should always write your Uri with a lower case scheme,
4938     * or use {@link Uri#normalizeScheme} or
4939     * {@link #setDataAndNormalize}
4940     * to ensure that the scheme is converted to lower case.</em>
4941     *
4942     * @param data The Uri of the data this intent is now targeting.
4943     *
4944     * @return Returns the same Intent object, for chaining multiple calls
4945     * into a single statement.
4946     *
4947     * @see #getData
4948     * @see #setDataAndNormalize
4949     * @see android.net.Intent#normalize
4950     */
4951    public Intent setData(Uri data) {
4952        mData = data;
4953        mType = null;
4954        return this;
4955    }
4956
4957    /**
4958     * Normalize and set the data this intent is operating on.
4959     *
4960     * <p>This method automatically clears any type that was
4961     * previously set (for example, by {@link #setType}).
4962     *
4963     * <p>The data Uri is normalized using
4964     * {@link android.net.Uri#normalizeScheme} before it is set,
4965     * so really this is just a convenience method for
4966     * <pre>
4967     * setData(data.normalize())
4968     * </pre>
4969     *
4970     * @param data The Uri of the data this intent is now targeting.
4971     *
4972     * @return Returns the same Intent object, for chaining multiple calls
4973     * into a single statement.
4974     *
4975     * @see #getData
4976     * @see #setType
4977     * @see android.net.Uri#normalizeScheme
4978     */
4979    public Intent setDataAndNormalize(Uri data) {
4980        return setData(data.normalizeScheme());
4981    }
4982
4983    /**
4984     * Set an explicit MIME data type.
4985     *
4986     * <p>This is used to create intents that only specify a type and not data,
4987     * for example to indicate the type of data to return.
4988     *
4989     * <p>This method automatically clears any data that was
4990     * previously set (for example by {@link #setData}).
4991     *
4992     * <p><em>Note: MIME type matching in the Android framework is
4993     * case-sensitive, unlike formal RFC MIME types.  As a result,
4994     * you should always write your MIME types with lower case letters,
4995     * or use {@link #normalizeMimeType} or {@link #setTypeAndNormalize}
4996     * to ensure that it is converted to lower case.</em>
4997     *
4998     * @param type The MIME type of the data being handled by this intent.
4999     *
5000     * @return Returns the same Intent object, for chaining multiple calls
5001     * into a single statement.
5002     *
5003     * @see #getType
5004     * @see #setTypeAndNormalize
5005     * @see #setDataAndType
5006     * @see #normalizeMimeType
5007     */
5008    public Intent setType(String type) {
5009        mData = null;
5010        mType = type;
5011        return this;
5012    }
5013
5014    /**
5015     * Normalize and set an explicit MIME data type.
5016     *
5017     * <p>This is used to create intents that only specify a type and not data,
5018     * for example to indicate the type of data to return.
5019     *
5020     * <p>This method automatically clears any data that was
5021     * previously set (for example by {@link #setData}).
5022     *
5023     * <p>The MIME type is normalized using
5024     * {@link #normalizeMimeType} before it is set,
5025     * so really this is just a convenience method for
5026     * <pre>
5027     * setType(Intent.normalizeMimeType(type))
5028     * </pre>
5029     *
5030     * @param type The MIME type of the data being handled by this intent.
5031     *
5032     * @return Returns the same Intent object, for chaining multiple calls
5033     * into a single statement.
5034     *
5035     * @see #getType
5036     * @see #setData
5037     * @see #normalizeMimeType
5038     */
5039    public Intent setTypeAndNormalize(String type) {
5040        return setType(normalizeMimeType(type));
5041    }
5042
5043    /**
5044     * (Usually optional) Set the data for the intent along with an explicit
5045     * MIME data type.  This method should very rarely be used -- it allows you
5046     * to override the MIME type that would ordinarily be inferred from the
5047     * data with your own type given here.
5048     *
5049     * <p><em>Note: MIME type and Uri scheme matching in the
5050     * Android framework is case-sensitive, unlike the formal RFC definitions.
5051     * As a result, you should always write these elements with lower case letters,
5052     * or use {@link #normalizeMimeType} or {@link android.net.Uri#normalizeScheme} or
5053     * {@link #setDataAndTypeAndNormalize}
5054     * to ensure that they are converted to lower case.</em>
5055     *
5056     * @param data The Uri of the data this intent is now targeting.
5057     * @param type The MIME type of the data being handled by this intent.
5058     *
5059     * @return Returns the same Intent object, for chaining multiple calls
5060     * into a single statement.
5061     *
5062     * @see #setType
5063     * @see #setData
5064     * @see #normalizeMimeType
5065     * @see android.net.Uri#normalizeScheme
5066     * @see #setDataAndTypeAndNormalize
5067     */
5068    public Intent setDataAndType(Uri data, String type) {
5069        mData = data;
5070        mType = type;
5071        return this;
5072    }
5073
5074    /**
5075     * (Usually optional) Normalize and set both the data Uri and an explicit
5076     * MIME data type.  This method should very rarely be used -- it allows you
5077     * to override the MIME type that would ordinarily be inferred from the
5078     * data with your own type given here.
5079     *
5080     * <p>The data Uri and the MIME type are normalize using
5081     * {@link android.net.Uri#normalizeScheme} and {@link #normalizeMimeType}
5082     * before they are set, so really this is just a convenience method for
5083     * <pre>
5084     * setDataAndType(data.normalize(), Intent.normalizeMimeType(type))
5085     * </pre>
5086     *
5087     * @param data The Uri of the data this intent is now targeting.
5088     * @param type The MIME type of the data being handled by this intent.
5089     *
5090     * @return Returns the same Intent object, for chaining multiple calls
5091     * into a single statement.
5092     *
5093     * @see #setType
5094     * @see #setData
5095     * @see #setDataAndType
5096     * @see #normalizeMimeType
5097     * @see android.net.Uri#normalizeScheme
5098     */
5099    public Intent setDataAndTypeAndNormalize(Uri data, String type) {
5100        return setDataAndType(data.normalizeScheme(), normalizeMimeType(type));
5101    }
5102
5103    /**
5104     * Add a new category to the intent.  Categories provide additional detail
5105     * about the action the intent performs.  When resolving an intent, only
5106     * activities that provide <em>all</em> of the requested categories will be
5107     * used.
5108     *
5109     * @param category The desired category.  This can be either one of the
5110     *               predefined Intent categories, or a custom category in your own
5111     *               namespace.
5112     *
5113     * @return Returns the same Intent object, for chaining multiple calls
5114     * into a single statement.
5115     *
5116     * @see #hasCategory
5117     * @see #removeCategory
5118     */
5119    public Intent addCategory(String category) {
5120        if (mCategories == null) {
5121            mCategories = new HashSet<String>();
5122        }
5123        mCategories.add(category.intern());
5124        return this;
5125    }
5126
5127    /**
5128     * Remove a category from an intent.
5129     *
5130     * @param category The category to remove.
5131     *
5132     * @see #addCategory
5133     */
5134    public void removeCategory(String category) {
5135        if (mCategories != null) {
5136            mCategories.remove(category);
5137            if (mCategories.size() == 0) {
5138                mCategories = null;
5139            }
5140        }
5141    }
5142
5143    /**
5144     * Set a selector for this Intent.  This is a modification to the kinds of
5145     * things the Intent will match.  If the selector is set, it will be used
5146     * when trying to find entities that can handle the Intent, instead of the
5147     * main contents of the Intent.  This allows you build an Intent containing
5148     * a generic protocol while targeting it more specifically.
5149     *
5150     * <p>An example of where this may be used is with things like
5151     * {@link #CATEGORY_APP_BROWSER}.  This category allows you to build an
5152     * Intent that will launch the Browser application.  However, the correct
5153     * main entry point of an application is actually {@link #ACTION_MAIN}
5154     * {@link #CATEGORY_LAUNCHER} with {@link #setComponent(ComponentName)}
5155     * used to specify the actual Activity to launch.  If you launch the browser
5156     * with something different, undesired behavior may happen if the user has
5157     * previously or later launches it the normal way, since they do not match.
5158     * Instead, you can build an Intent with the MAIN action (but no ComponentName
5159     * yet specified) and set a selector with {@link #ACTION_MAIN} and
5160     * {@link #CATEGORY_APP_BROWSER} to point it specifically to the browser activity.
5161     *
5162     * <p>Setting a selector does not impact the behavior of
5163     * {@link #filterEquals(Intent)} and {@link #filterHashCode()}.  This is part of the
5164     * desired behavior of a selector -- it does not impact the base meaning
5165     * of the Intent, just what kinds of things will be matched against it
5166     * when determining who can handle it.</p>
5167     *
5168     * <p>You can not use both a selector and {@link #setPackage(String)} on
5169     * the same base Intent.</p>
5170     *
5171     * @param selector The desired selector Intent; set to null to not use
5172     * a special selector.
5173     */
5174    public void setSelector(Intent selector) {
5175        if (selector == this) {
5176            throw new IllegalArgumentException(
5177                    "Intent being set as a selector of itself");
5178        }
5179        if (selector != null && mPackage != null) {
5180            throw new IllegalArgumentException(
5181                    "Can't set selector when package name is already set");
5182        }
5183        mSelector = selector;
5184    }
5185
5186    /**
5187     * Set a {@link ClipData} associated with this Intent.  This replaces any
5188     * previously set ClipData.
5189     *
5190     * <p>The ClipData in an intent is not used for Intent matching or other
5191     * such operations.  Semantically it is like extras, used to transmit
5192     * additional data with the Intent.  The main feature of using this over
5193     * the extras for data is that {@link #FLAG_GRANT_READ_URI_PERMISSION}
5194     * and {@link #FLAG_GRANT_WRITE_URI_PERMISSION} will operate on any URI
5195     * items included in the clip data.  This is useful, in particular, if
5196     * you want to transmit an Intent containing multiple <code>content:</code>
5197     * URIs for which the recipient may not have global permission to access the
5198     * content provider.
5199     *
5200     * <p>If the ClipData contains items that are themselves Intents, any
5201     * grant flags in those Intents will be ignored.  Only the top-level flags
5202     * of the main Intent are respected, and will be applied to all Uri or
5203     * Intent items in the clip (or sub-items of the clip).
5204     *
5205     * <p>The MIME type, label, and icon in the ClipData object are not
5206     * directly used by Intent.  Applications should generally rely on the
5207     * MIME type of the Intent itself, not what it may find in the ClipData.
5208     * A common practice is to construct a ClipData for use with an Intent
5209     * with a MIME type of "*\/*".
5210     *
5211     * @param clip The new clip to set.  May be null to clear the current clip.
5212     */
5213    public void setClipData(ClipData clip) {
5214        mClipData = clip;
5215    }
5216
5217    /**
5218     * Add extended data to the intent.  The name must include a package
5219     * prefix, for example the app com.android.contacts would use names
5220     * like "com.android.contacts.ShowAll".
5221     *
5222     * @param name The name of the extra data, with package prefix.
5223     * @param value The boolean data value.
5224     *
5225     * @return Returns the same Intent object, for chaining multiple calls
5226     * into a single statement.
5227     *
5228     * @see #putExtras
5229     * @see #removeExtra
5230     * @see #getBooleanExtra(String, boolean)
5231     */
5232    public Intent putExtra(String name, boolean value) {
5233        if (mExtras == null) {
5234            mExtras = new Bundle();
5235        }
5236        mExtras.putBoolean(name, value);
5237        return this;
5238    }
5239
5240    /**
5241     * Add extended data to the intent.  The name must include a package
5242     * prefix, for example the app com.android.contacts would use names
5243     * like "com.android.contacts.ShowAll".
5244     *
5245     * @param name The name of the extra data, with package prefix.
5246     * @param value The byte data value.
5247     *
5248     * @return Returns the same Intent object, for chaining multiple calls
5249     * into a single statement.
5250     *
5251     * @see #putExtras
5252     * @see #removeExtra
5253     * @see #getByteExtra(String, byte)
5254     */
5255    public Intent putExtra(String name, byte value) {
5256        if (mExtras == null) {
5257            mExtras = new Bundle();
5258        }
5259        mExtras.putByte(name, value);
5260        return this;
5261    }
5262
5263    /**
5264     * Add extended data to the intent.  The name must include a package
5265     * prefix, for example the app com.android.contacts would use names
5266     * like "com.android.contacts.ShowAll".
5267     *
5268     * @param name The name of the extra data, with package prefix.
5269     * @param value The char data value.
5270     *
5271     * @return Returns the same Intent object, for chaining multiple calls
5272     * into a single statement.
5273     *
5274     * @see #putExtras
5275     * @see #removeExtra
5276     * @see #getCharExtra(String, char)
5277     */
5278    public Intent putExtra(String name, char value) {
5279        if (mExtras == null) {
5280            mExtras = new Bundle();
5281        }
5282        mExtras.putChar(name, value);
5283        return this;
5284    }
5285
5286    /**
5287     * Add extended data to the intent.  The name must include a package
5288     * prefix, for example the app com.android.contacts would use names
5289     * like "com.android.contacts.ShowAll".
5290     *
5291     * @param name The name of the extra data, with package prefix.
5292     * @param value The short data value.
5293     *
5294     * @return Returns the same Intent object, for chaining multiple calls
5295     * into a single statement.
5296     *
5297     * @see #putExtras
5298     * @see #removeExtra
5299     * @see #getShortExtra(String, short)
5300     */
5301    public Intent putExtra(String name, short value) {
5302        if (mExtras == null) {
5303            mExtras = new Bundle();
5304        }
5305        mExtras.putShort(name, value);
5306        return this;
5307    }
5308
5309    /**
5310     * Add extended data to the intent.  The name must include a package
5311     * prefix, for example the app com.android.contacts would use names
5312     * like "com.android.contacts.ShowAll".
5313     *
5314     * @param name The name of the extra data, with package prefix.
5315     * @param value The integer data value.
5316     *
5317     * @return Returns the same Intent object, for chaining multiple calls
5318     * into a single statement.
5319     *
5320     * @see #putExtras
5321     * @see #removeExtra
5322     * @see #getIntExtra(String, int)
5323     */
5324    public Intent putExtra(String name, int value) {
5325        if (mExtras == null) {
5326            mExtras = new Bundle();
5327        }
5328        mExtras.putInt(name, value);
5329        return this;
5330    }
5331
5332    /**
5333     * Add extended data to the intent.  The name must include a package
5334     * prefix, for example the app com.android.contacts would use names
5335     * like "com.android.contacts.ShowAll".
5336     *
5337     * @param name The name of the extra data, with package prefix.
5338     * @param value The long data value.
5339     *
5340     * @return Returns the same Intent object, for chaining multiple calls
5341     * into a single statement.
5342     *
5343     * @see #putExtras
5344     * @see #removeExtra
5345     * @see #getLongExtra(String, long)
5346     */
5347    public Intent putExtra(String name, long value) {
5348        if (mExtras == null) {
5349            mExtras = new Bundle();
5350        }
5351        mExtras.putLong(name, value);
5352        return this;
5353    }
5354
5355    /**
5356     * Add extended data to the intent.  The name must include a package
5357     * prefix, for example the app com.android.contacts would use names
5358     * like "com.android.contacts.ShowAll".
5359     *
5360     * @param name The name of the extra data, with package prefix.
5361     * @param value The float data value.
5362     *
5363     * @return Returns the same Intent object, for chaining multiple calls
5364     * into a single statement.
5365     *
5366     * @see #putExtras
5367     * @see #removeExtra
5368     * @see #getFloatExtra(String, float)
5369     */
5370    public Intent putExtra(String name, float value) {
5371        if (mExtras == null) {
5372            mExtras = new Bundle();
5373        }
5374        mExtras.putFloat(name, value);
5375        return this;
5376    }
5377
5378    /**
5379     * Add extended data to the intent.  The name must include a package
5380     * prefix, for example the app com.android.contacts would use names
5381     * like "com.android.contacts.ShowAll".
5382     *
5383     * @param name The name of the extra data, with package prefix.
5384     * @param value The double data value.
5385     *
5386     * @return Returns the same Intent object, for chaining multiple calls
5387     * into a single statement.
5388     *
5389     * @see #putExtras
5390     * @see #removeExtra
5391     * @see #getDoubleExtra(String, double)
5392     */
5393    public Intent putExtra(String name, double value) {
5394        if (mExtras == null) {
5395            mExtras = new Bundle();
5396        }
5397        mExtras.putDouble(name, value);
5398        return this;
5399    }
5400
5401    /**
5402     * Add extended data to the intent.  The name must include a package
5403     * prefix, for example the app com.android.contacts would use names
5404     * like "com.android.contacts.ShowAll".
5405     *
5406     * @param name The name of the extra data, with package prefix.
5407     * @param value The String data value.
5408     *
5409     * @return Returns the same Intent object, for chaining multiple calls
5410     * into a single statement.
5411     *
5412     * @see #putExtras
5413     * @see #removeExtra
5414     * @see #getStringExtra(String)
5415     */
5416    public Intent putExtra(String name, String value) {
5417        if (mExtras == null) {
5418            mExtras = new Bundle();
5419        }
5420        mExtras.putString(name, value);
5421        return this;
5422    }
5423
5424    /**
5425     * Add extended data to the intent.  The name must include a package
5426     * prefix, for example the app com.android.contacts would use names
5427     * like "com.android.contacts.ShowAll".
5428     *
5429     * @param name The name of the extra data, with package prefix.
5430     * @param value The CharSequence data value.
5431     *
5432     * @return Returns the same Intent object, for chaining multiple calls
5433     * into a single statement.
5434     *
5435     * @see #putExtras
5436     * @see #removeExtra
5437     * @see #getCharSequenceExtra(String)
5438     */
5439    public Intent putExtra(String name, CharSequence value) {
5440        if (mExtras == null) {
5441            mExtras = new Bundle();
5442        }
5443        mExtras.putCharSequence(name, value);
5444        return this;
5445    }
5446
5447    /**
5448     * Add extended data to the intent.  The name must include a package
5449     * prefix, for example the app com.android.contacts would use names
5450     * like "com.android.contacts.ShowAll".
5451     *
5452     * @param name The name of the extra data, with package prefix.
5453     * @param value The Parcelable data value.
5454     *
5455     * @return Returns the same Intent object, for chaining multiple calls
5456     * into a single statement.
5457     *
5458     * @see #putExtras
5459     * @see #removeExtra
5460     * @see #getParcelableExtra(String)
5461     */
5462    public Intent putExtra(String name, Parcelable value) {
5463        if (mExtras == null) {
5464            mExtras = new Bundle();
5465        }
5466        mExtras.putParcelable(name, value);
5467        return this;
5468    }
5469
5470    /**
5471     * Add extended data to the intent.  The name must include a package
5472     * prefix, for example the app com.android.contacts would use names
5473     * like "com.android.contacts.ShowAll".
5474     *
5475     * @param name The name of the extra data, with package prefix.
5476     * @param value The Parcelable[] data value.
5477     *
5478     * @return Returns the same Intent object, for chaining multiple calls
5479     * into a single statement.
5480     *
5481     * @see #putExtras
5482     * @see #removeExtra
5483     * @see #getParcelableArrayExtra(String)
5484     */
5485    public Intent putExtra(String name, Parcelable[] value) {
5486        if (mExtras == null) {
5487            mExtras = new Bundle();
5488        }
5489        mExtras.putParcelableArray(name, value);
5490        return this;
5491    }
5492
5493    /**
5494     * Add extended data to the intent.  The name must include a package
5495     * prefix, for example the app com.android.contacts would use names
5496     * like "com.android.contacts.ShowAll".
5497     *
5498     * @param name The name of the extra data, with package prefix.
5499     * @param value The ArrayList<Parcelable> data value.
5500     *
5501     * @return Returns the same Intent object, for chaining multiple calls
5502     * into a single statement.
5503     *
5504     * @see #putExtras
5505     * @see #removeExtra
5506     * @see #getParcelableArrayListExtra(String)
5507     */
5508    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
5509        if (mExtras == null) {
5510            mExtras = new Bundle();
5511        }
5512        mExtras.putParcelableArrayList(name, value);
5513        return this;
5514    }
5515
5516    /**
5517     * Add extended data to the intent.  The name must include a package
5518     * prefix, for example the app com.android.contacts would use names
5519     * like "com.android.contacts.ShowAll".
5520     *
5521     * @param name The name of the extra data, with package prefix.
5522     * @param value The ArrayList<Integer> data value.
5523     *
5524     * @return Returns the same Intent object, for chaining multiple calls
5525     * into a single statement.
5526     *
5527     * @see #putExtras
5528     * @see #removeExtra
5529     * @see #getIntegerArrayListExtra(String)
5530     */
5531    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
5532        if (mExtras == null) {
5533            mExtras = new Bundle();
5534        }
5535        mExtras.putIntegerArrayList(name, value);
5536        return this;
5537    }
5538
5539    /**
5540     * Add extended data to the intent.  The name must include a package
5541     * prefix, for example the app com.android.contacts would use names
5542     * like "com.android.contacts.ShowAll".
5543     *
5544     * @param name The name of the extra data, with package prefix.
5545     * @param value The ArrayList<String> data value.
5546     *
5547     * @return Returns the same Intent object, for chaining multiple calls
5548     * into a single statement.
5549     *
5550     * @see #putExtras
5551     * @see #removeExtra
5552     * @see #getStringArrayListExtra(String)
5553     */
5554    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
5555        if (mExtras == null) {
5556            mExtras = new Bundle();
5557        }
5558        mExtras.putStringArrayList(name, value);
5559        return this;
5560    }
5561
5562    /**
5563     * Add extended data to the intent.  The name must include a package
5564     * prefix, for example the app com.android.contacts would use names
5565     * like "com.android.contacts.ShowAll".
5566     *
5567     * @param name The name of the extra data, with package prefix.
5568     * @param value The ArrayList<CharSequence> data value.
5569     *
5570     * @return Returns the same Intent object, for chaining multiple calls
5571     * into a single statement.
5572     *
5573     * @see #putExtras
5574     * @see #removeExtra
5575     * @see #getCharSequenceArrayListExtra(String)
5576     */
5577    public Intent putCharSequenceArrayListExtra(String name, ArrayList<CharSequence> value) {
5578        if (mExtras == null) {
5579            mExtras = new Bundle();
5580        }
5581        mExtras.putCharSequenceArrayList(name, value);
5582        return this;
5583    }
5584
5585    /**
5586     * Add extended data to the intent.  The name must include a package
5587     * prefix, for example the app com.android.contacts would use names
5588     * like "com.android.contacts.ShowAll".
5589     *
5590     * @param name The name of the extra data, with package prefix.
5591     * @param value The Serializable data value.
5592     *
5593     * @return Returns the same Intent object, for chaining multiple calls
5594     * into a single statement.
5595     *
5596     * @see #putExtras
5597     * @see #removeExtra
5598     * @see #getSerializableExtra(String)
5599     */
5600    public Intent putExtra(String name, Serializable value) {
5601        if (mExtras == null) {
5602            mExtras = new Bundle();
5603        }
5604        mExtras.putSerializable(name, value);
5605        return this;
5606    }
5607
5608    /**
5609     * Add extended data to the intent.  The name must include a package
5610     * prefix, for example the app com.android.contacts would use names
5611     * like "com.android.contacts.ShowAll".
5612     *
5613     * @param name The name of the extra data, with package prefix.
5614     * @param value The boolean array data value.
5615     *
5616     * @return Returns the same Intent object, for chaining multiple calls
5617     * into a single statement.
5618     *
5619     * @see #putExtras
5620     * @see #removeExtra
5621     * @see #getBooleanArrayExtra(String)
5622     */
5623    public Intent putExtra(String name, boolean[] value) {
5624        if (mExtras == null) {
5625            mExtras = new Bundle();
5626        }
5627        mExtras.putBooleanArray(name, value);
5628        return this;
5629    }
5630
5631    /**
5632     * Add extended data to the intent.  The name must include a package
5633     * prefix, for example the app com.android.contacts would use names
5634     * like "com.android.contacts.ShowAll".
5635     *
5636     * @param name The name of the extra data, with package prefix.
5637     * @param value The byte array data value.
5638     *
5639     * @return Returns the same Intent object, for chaining multiple calls
5640     * into a single statement.
5641     *
5642     * @see #putExtras
5643     * @see #removeExtra
5644     * @see #getByteArrayExtra(String)
5645     */
5646    public Intent putExtra(String name, byte[] value) {
5647        if (mExtras == null) {
5648            mExtras = new Bundle();
5649        }
5650        mExtras.putByteArray(name, value);
5651        return this;
5652    }
5653
5654    /**
5655     * Add extended data to the intent.  The name must include a package
5656     * prefix, for example the app com.android.contacts would use names
5657     * like "com.android.contacts.ShowAll".
5658     *
5659     * @param name The name of the extra data, with package prefix.
5660     * @param value The short array data value.
5661     *
5662     * @return Returns the same Intent object, for chaining multiple calls
5663     * into a single statement.
5664     *
5665     * @see #putExtras
5666     * @see #removeExtra
5667     * @see #getShortArrayExtra(String)
5668     */
5669    public Intent putExtra(String name, short[] value) {
5670        if (mExtras == null) {
5671            mExtras = new Bundle();
5672        }
5673        mExtras.putShortArray(name, value);
5674        return this;
5675    }
5676
5677    /**
5678     * Add extended data to the intent.  The name must include a package
5679     * prefix, for example the app com.android.contacts would use names
5680     * like "com.android.contacts.ShowAll".
5681     *
5682     * @param name The name of the extra data, with package prefix.
5683     * @param value The char array data value.
5684     *
5685     * @return Returns the same Intent object, for chaining multiple calls
5686     * into a single statement.
5687     *
5688     * @see #putExtras
5689     * @see #removeExtra
5690     * @see #getCharArrayExtra(String)
5691     */
5692    public Intent putExtra(String name, char[] value) {
5693        if (mExtras == null) {
5694            mExtras = new Bundle();
5695        }
5696        mExtras.putCharArray(name, value);
5697        return this;
5698    }
5699
5700    /**
5701     * Add extended data to the intent.  The name must include a package
5702     * prefix, for example the app com.android.contacts would use names
5703     * like "com.android.contacts.ShowAll".
5704     *
5705     * @param name The name of the extra data, with package prefix.
5706     * @param value The int array data value.
5707     *
5708     * @return Returns the same Intent object, for chaining multiple calls
5709     * into a single statement.
5710     *
5711     * @see #putExtras
5712     * @see #removeExtra
5713     * @see #getIntArrayExtra(String)
5714     */
5715    public Intent putExtra(String name, int[] value) {
5716        if (mExtras == null) {
5717            mExtras = new Bundle();
5718        }
5719        mExtras.putIntArray(name, value);
5720        return this;
5721    }
5722
5723    /**
5724     * Add extended data to the intent.  The name must include a package
5725     * prefix, for example the app com.android.contacts would use names
5726     * like "com.android.contacts.ShowAll".
5727     *
5728     * @param name The name of the extra data, with package prefix.
5729     * @param value The byte array data value.
5730     *
5731     * @return Returns the same Intent object, for chaining multiple calls
5732     * into a single statement.
5733     *
5734     * @see #putExtras
5735     * @see #removeExtra
5736     * @see #getLongArrayExtra(String)
5737     */
5738    public Intent putExtra(String name, long[] value) {
5739        if (mExtras == null) {
5740            mExtras = new Bundle();
5741        }
5742        mExtras.putLongArray(name, value);
5743        return this;
5744    }
5745
5746    /**
5747     * Add extended data to the intent.  The name must include a package
5748     * prefix, for example the app com.android.contacts would use names
5749     * like "com.android.contacts.ShowAll".
5750     *
5751     * @param name The name of the extra data, with package prefix.
5752     * @param value The float array data value.
5753     *
5754     * @return Returns the same Intent object, for chaining multiple calls
5755     * into a single statement.
5756     *
5757     * @see #putExtras
5758     * @see #removeExtra
5759     * @see #getFloatArrayExtra(String)
5760     */
5761    public Intent putExtra(String name, float[] value) {
5762        if (mExtras == null) {
5763            mExtras = new Bundle();
5764        }
5765        mExtras.putFloatArray(name, value);
5766        return this;
5767    }
5768
5769    /**
5770     * Add extended data to the intent.  The name must include a package
5771     * prefix, for example the app com.android.contacts would use names
5772     * like "com.android.contacts.ShowAll".
5773     *
5774     * @param name The name of the extra data, with package prefix.
5775     * @param value The double array data value.
5776     *
5777     * @return Returns the same Intent object, for chaining multiple calls
5778     * into a single statement.
5779     *
5780     * @see #putExtras
5781     * @see #removeExtra
5782     * @see #getDoubleArrayExtra(String)
5783     */
5784    public Intent putExtra(String name, double[] value) {
5785        if (mExtras == null) {
5786            mExtras = new Bundle();
5787        }
5788        mExtras.putDoubleArray(name, value);
5789        return this;
5790    }
5791
5792    /**
5793     * Add extended data to the intent.  The name must include a package
5794     * prefix, for example the app com.android.contacts would use names
5795     * like "com.android.contacts.ShowAll".
5796     *
5797     * @param name The name of the extra data, with package prefix.
5798     * @param value The String array data value.
5799     *
5800     * @return Returns the same Intent object, for chaining multiple calls
5801     * into a single statement.
5802     *
5803     * @see #putExtras
5804     * @see #removeExtra
5805     * @see #getStringArrayExtra(String)
5806     */
5807    public Intent putExtra(String name, String[] value) {
5808        if (mExtras == null) {
5809            mExtras = new Bundle();
5810        }
5811        mExtras.putStringArray(name, value);
5812        return this;
5813    }
5814
5815    /**
5816     * Add extended data to the intent.  The name must include a package
5817     * prefix, for example the app com.android.contacts would use names
5818     * like "com.android.contacts.ShowAll".
5819     *
5820     * @param name The name of the extra data, with package prefix.
5821     * @param value The CharSequence array data value.
5822     *
5823     * @return Returns the same Intent object, for chaining multiple calls
5824     * into a single statement.
5825     *
5826     * @see #putExtras
5827     * @see #removeExtra
5828     * @see #getCharSequenceArrayExtra(String)
5829     */
5830    public Intent putExtra(String name, CharSequence[] value) {
5831        if (mExtras == null) {
5832            mExtras = new Bundle();
5833        }
5834        mExtras.putCharSequenceArray(name, value);
5835        return this;
5836    }
5837
5838    /**
5839     * Add extended data to the intent.  The name must include a package
5840     * prefix, for example the app com.android.contacts would use names
5841     * like "com.android.contacts.ShowAll".
5842     *
5843     * @param name The name of the extra data, with package prefix.
5844     * @param value The Bundle data value.
5845     *
5846     * @return Returns the same Intent object, for chaining multiple calls
5847     * into a single statement.
5848     *
5849     * @see #putExtras
5850     * @see #removeExtra
5851     * @see #getBundleExtra(String)
5852     */
5853    public Intent putExtra(String name, Bundle value) {
5854        if (mExtras == null) {
5855            mExtras = new Bundle();
5856        }
5857        mExtras.putBundle(name, value);
5858        return this;
5859    }
5860
5861    /**
5862     * Add extended data to the intent.  The name must include a package
5863     * prefix, for example the app com.android.contacts would use names
5864     * like "com.android.contacts.ShowAll".
5865     *
5866     * @param name The name of the extra data, with package prefix.
5867     * @param value The IBinder data value.
5868     *
5869     * @return Returns the same Intent object, for chaining multiple calls
5870     * into a single statement.
5871     *
5872     * @see #putExtras
5873     * @see #removeExtra
5874     * @see #getIBinderExtra(String)
5875     *
5876     * @deprecated
5877     * @hide
5878     */
5879    @Deprecated
5880    public Intent putExtra(String name, IBinder value) {
5881        if (mExtras == null) {
5882            mExtras = new Bundle();
5883        }
5884        mExtras.putIBinder(name, value);
5885        return this;
5886    }
5887
5888    /**
5889     * Copy all extras in 'src' in to this intent.
5890     *
5891     * @param src Contains the extras to copy.
5892     *
5893     * @see #putExtra
5894     */
5895    public Intent putExtras(Intent src) {
5896        if (src.mExtras != null) {
5897            if (mExtras == null) {
5898                mExtras = new Bundle(src.mExtras);
5899            } else {
5900                mExtras.putAll(src.mExtras);
5901            }
5902        }
5903        return this;
5904    }
5905
5906    /**
5907     * Add a set of extended data to the intent.  The keys must include a package
5908     * prefix, for example the app com.android.contacts would use names
5909     * like "com.android.contacts.ShowAll".
5910     *
5911     * @param extras The Bundle of extras to add to this intent.
5912     *
5913     * @see #putExtra
5914     * @see #removeExtra
5915     */
5916    public Intent putExtras(Bundle extras) {
5917        if (mExtras == null) {
5918            mExtras = new Bundle();
5919        }
5920        mExtras.putAll(extras);
5921        return this;
5922    }
5923
5924    /**
5925     * Completely replace the extras in the Intent with the extras in the
5926     * given Intent.
5927     *
5928     * @param src The exact extras contained in this Intent are copied
5929     * into the target intent, replacing any that were previously there.
5930     */
5931    public Intent replaceExtras(Intent src) {
5932        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
5933        return this;
5934    }
5935
5936    /**
5937     * Completely replace the extras in the Intent with the given Bundle of
5938     * extras.
5939     *
5940     * @param extras The new set of extras in the Intent, or null to erase
5941     * all extras.
5942     */
5943    public Intent replaceExtras(Bundle extras) {
5944        mExtras = extras != null ? new Bundle(extras) : null;
5945        return this;
5946    }
5947
5948    /**
5949     * Remove extended data from the intent.
5950     *
5951     * @see #putExtra
5952     */
5953    public void removeExtra(String name) {
5954        if (mExtras != null) {
5955            mExtras.remove(name);
5956            if (mExtras.size() == 0) {
5957                mExtras = null;
5958            }
5959        }
5960    }
5961
5962    /**
5963     * Set special flags controlling how this intent is handled.  Most values
5964     * here depend on the type of component being executed by the Intent,
5965     * specifically the FLAG_ACTIVITY_* flags are all for use with
5966     * {@link Context#startActivity Context.startActivity()} and the
5967     * FLAG_RECEIVER_* flags are all for use with
5968     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
5969     *
5970     * <p>See the
5971     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
5972     * Stack</a> documentation for important information on how some of these options impact
5973     * the behavior of your application.
5974     *
5975     * @param flags The desired flags.
5976     *
5977     * @return Returns the same Intent object, for chaining multiple calls
5978     * into a single statement.
5979     *
5980     * @see #getFlags
5981     * @see #addFlags
5982     *
5983     * @see #FLAG_GRANT_READ_URI_PERMISSION
5984     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
5985     * @see #FLAG_DEBUG_LOG_RESOLUTION
5986     * @see #FLAG_FROM_BACKGROUND
5987     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
5988     * @see #FLAG_ACTIVITY_CLEAR_TASK
5989     * @see #FLAG_ACTIVITY_CLEAR_TOP
5990     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
5991     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
5992     * @see #FLAG_ACTIVITY_FORWARD_RESULT
5993     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
5994     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
5995     * @see #FLAG_ACTIVITY_NEW_TASK
5996     * @see #FLAG_ACTIVITY_NO_ANIMATION
5997     * @see #FLAG_ACTIVITY_NO_HISTORY
5998     * @see #FLAG_ACTIVITY_NO_USER_ACTION
5999     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
6000     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
6001     * @see #FLAG_ACTIVITY_REORDER_TO_FRONT
6002     * @see #FLAG_ACTIVITY_SINGLE_TOP
6003     * @see #FLAG_ACTIVITY_TASK_ON_HOME
6004     * @see #FLAG_RECEIVER_REGISTERED_ONLY
6005     */
6006    public Intent setFlags(int flags) {
6007        mFlags = flags;
6008        return this;
6009    }
6010
6011    /**
6012     * Add additional flags to the intent (or with existing flags
6013     * value).
6014     *
6015     * @param flags The new flags to set.
6016     *
6017     * @return Returns the same Intent object, for chaining multiple calls
6018     * into a single statement.
6019     *
6020     * @see #setFlags
6021     */
6022    public Intent addFlags(int flags) {
6023        mFlags |= flags;
6024        return this;
6025    }
6026
6027    /**
6028     * (Usually optional) Set an explicit application package name that limits
6029     * the components this Intent will resolve to.  If left to the default
6030     * value of null, all components in all applications will considered.
6031     * If non-null, the Intent can only match the components in the given
6032     * application package.
6033     *
6034     * @param packageName The name of the application package to handle the
6035     * intent, or null to allow any application package.
6036     *
6037     * @return Returns the same Intent object, for chaining multiple calls
6038     * into a single statement.
6039     *
6040     * @see #getPackage
6041     * @see #resolveActivity
6042     */
6043    public Intent setPackage(String packageName) {
6044        if (packageName != null && mSelector != null) {
6045            throw new IllegalArgumentException(
6046                    "Can't set package name when selector is already set");
6047        }
6048        mPackage = packageName;
6049        return this;
6050    }
6051
6052    /**
6053     * (Usually optional) Explicitly set the component to handle the intent.
6054     * If left with the default value of null, the system will determine the
6055     * appropriate class to use based on the other fields (action, data,
6056     * type, categories) in the Intent.  If this class is defined, the
6057     * specified class will always be used regardless of the other fields.  You
6058     * should only set this value when you know you absolutely want a specific
6059     * class to be used; otherwise it is better to let the system find the
6060     * appropriate class so that you will respect the installed applications
6061     * and user preferences.
6062     *
6063     * @param component The name of the application component to handle the
6064     * intent, or null to let the system find one for you.
6065     *
6066     * @return Returns the same Intent object, for chaining multiple calls
6067     * into a single statement.
6068     *
6069     * @see #setClass
6070     * @see #setClassName(Context, String)
6071     * @see #setClassName(String, String)
6072     * @see #getComponent
6073     * @see #resolveActivity
6074     */
6075    public Intent setComponent(ComponentName component) {
6076        mComponent = component;
6077        return this;
6078    }
6079
6080    /**
6081     * Convenience for calling {@link #setComponent} with an
6082     * explicit class name.
6083     *
6084     * @param packageContext A Context of the application package implementing
6085     * this class.
6086     * @param className The name of a class inside of the application package
6087     * that will be used as the component for this Intent.
6088     *
6089     * @return Returns the same Intent object, for chaining multiple calls
6090     * into a single statement.
6091     *
6092     * @see #setComponent
6093     * @see #setClass
6094     */
6095    public Intent setClassName(Context packageContext, String className) {
6096        mComponent = new ComponentName(packageContext, className);
6097        return this;
6098    }
6099
6100    /**
6101     * Convenience for calling {@link #setComponent} with an
6102     * explicit application package name and class name.
6103     *
6104     * @param packageName The name of the package implementing the desired
6105     * component.
6106     * @param className The name of a class inside of the application package
6107     * that will be used as the component for this Intent.
6108     *
6109     * @return Returns the same Intent object, for chaining multiple calls
6110     * into a single statement.
6111     *
6112     * @see #setComponent
6113     * @see #setClass
6114     */
6115    public Intent setClassName(String packageName, String className) {
6116        mComponent = new ComponentName(packageName, className);
6117        return this;
6118    }
6119
6120    /**
6121     * Convenience for calling {@link #setComponent(ComponentName)} with the
6122     * name returned by a {@link Class} object.
6123     *
6124     * @param packageContext A Context of the application package implementing
6125     * this class.
6126     * @param cls The class name to set, equivalent to
6127     *            <code>setClassName(context, cls.getName())</code>.
6128     *
6129     * @return Returns the same Intent object, for chaining multiple calls
6130     * into a single statement.
6131     *
6132     * @see #setComponent
6133     */
6134    public Intent setClass(Context packageContext, Class<?> cls) {
6135        mComponent = new ComponentName(packageContext, cls);
6136        return this;
6137    }
6138
6139    /**
6140     * Set the bounds of the sender of this intent, in screen coordinates.  This can be
6141     * used as a hint to the receiver for animations and the like.  Null means that there
6142     * is no source bounds.
6143     */
6144    public void setSourceBounds(Rect r) {
6145        if (r != null) {
6146            mSourceBounds = new Rect(r);
6147        } else {
6148            mSourceBounds = null;
6149        }
6150    }
6151
6152    /**
6153     * Use with {@link #fillIn} to allow the current action value to be
6154     * overwritten, even if it is already set.
6155     */
6156    public static final int FILL_IN_ACTION = 1<<0;
6157
6158    /**
6159     * Use with {@link #fillIn} to allow the current data or type value
6160     * overwritten, even if it is already set.
6161     */
6162    public static final int FILL_IN_DATA = 1<<1;
6163
6164    /**
6165     * Use with {@link #fillIn} to allow the current categories to be
6166     * overwritten, even if they are already set.
6167     */
6168    public static final int FILL_IN_CATEGORIES = 1<<2;
6169
6170    /**
6171     * Use with {@link #fillIn} to allow the current component value to be
6172     * overwritten, even if it is already set.
6173     */
6174    public static final int FILL_IN_COMPONENT = 1<<3;
6175
6176    /**
6177     * Use with {@link #fillIn} to allow the current package value to be
6178     * overwritten, even if it is already set.
6179     */
6180    public static final int FILL_IN_PACKAGE = 1<<4;
6181
6182    /**
6183     * Use with {@link #fillIn} to allow the current bounds rectangle to be
6184     * overwritten, even if it is already set.
6185     */
6186    public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
6187
6188    /**
6189     * Use with {@link #fillIn} to allow the current selector to be
6190     * overwritten, even if it is already set.
6191     */
6192    public static final int FILL_IN_SELECTOR = 1<<6;
6193
6194    /**
6195     * Use with {@link #fillIn} to allow the current ClipData to be
6196     * overwritten, even if it is already set.
6197     */
6198    public static final int FILL_IN_CLIP_DATA = 1<<7;
6199
6200    /**
6201     * Copy the contents of <var>other</var> in to this object, but only
6202     * where fields are not defined by this object.  For purposes of a field
6203     * being defined, the following pieces of data in the Intent are
6204     * considered to be separate fields:
6205     *
6206     * <ul>
6207     * <li> action, as set by {@link #setAction}.
6208     * <li> data Uri and MIME type, as set by {@link #setData(Uri)},
6209     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
6210     * <li> categories, as set by {@link #addCategory}.
6211     * <li> package, as set by {@link #setPackage}.
6212     * <li> component, as set by {@link #setComponent(ComponentName)} or
6213     * related methods.
6214     * <li> source bounds, as set by {@link #setSourceBounds}.
6215     * <li> selector, as set by {@link #setSelector(Intent)}.
6216     * <li> clip data, as set by {@link #setClipData(ClipData)}.
6217     * <li> each top-level name in the associated extras.
6218     * </ul>
6219     *
6220     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
6221     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
6222     * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS},
6223     * {@link #FILL_IN_SELECTOR}, and {@link #FILL_IN_CLIP_DATA} to override
6224     * the restriction where the corresponding field will not be replaced if
6225     * it is already set.
6226     *
6227     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT}
6228     * is explicitly specified.  The selector will only be copied if
6229     * {@link #FILL_IN_SELECTOR} is explicitly specified.
6230     *
6231     * <p>For example, consider Intent A with {data="foo", categories="bar"}
6232     * and Intent B with {action="gotit", data-type="some/thing",
6233     * categories="one","two"}.
6234     *
6235     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
6236     * containing: {action="gotit", data-type="some/thing",
6237     * categories="bar"}.
6238     *
6239     * @param other Another Intent whose values are to be used to fill in
6240     * the current one.
6241     * @param flags Options to control which fields can be filled in.
6242     *
6243     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
6244     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
6245     * {@link #FILL_IN_COMPONENT}, {@link #FILL_IN_SOURCE_BOUNDS}, and
6246     * {@link #FILL_IN_SELECTOR} indicating which fields were changed.
6247     */
6248    public int fillIn(Intent other, int flags) {
6249        int changes = 0;
6250        if (other.mAction != null
6251                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
6252            mAction = other.mAction;
6253            changes |= FILL_IN_ACTION;
6254        }
6255        if ((other.mData != null || other.mType != null)
6256                && ((mData == null && mType == null)
6257                        || (flags&FILL_IN_DATA) != 0)) {
6258            mData = other.mData;
6259            mType = other.mType;
6260            changes |= FILL_IN_DATA;
6261        }
6262        if (other.mCategories != null
6263                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
6264            if (other.mCategories != null) {
6265                mCategories = new HashSet<String>(other.mCategories);
6266            }
6267            changes |= FILL_IN_CATEGORIES;
6268        }
6269        if (other.mPackage != null
6270                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
6271            // Only do this if mSelector is not set.
6272            if (mSelector == null) {
6273                mPackage = other.mPackage;
6274                changes |= FILL_IN_PACKAGE;
6275            }
6276        }
6277        // Selector is special: it can only be set if explicitly allowed,
6278        // for the same reason as the component name.
6279        if (other.mSelector != null && (flags&FILL_IN_SELECTOR) != 0) {
6280            if (mPackage == null) {
6281                mSelector = new Intent(other.mSelector);
6282                mPackage = null;
6283                changes |= FILL_IN_SELECTOR;
6284            }
6285        }
6286        if (other.mClipData != null
6287                && (mClipData == null || (flags&FILL_IN_CLIP_DATA) != 0)) {
6288            mClipData = other.mClipData;
6289            changes |= FILL_IN_CLIP_DATA;
6290        }
6291        // Component is special: it can -only- be set if explicitly allowed,
6292        // since otherwise the sender could force the intent somewhere the
6293        // originator didn't intend.
6294        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
6295            mComponent = other.mComponent;
6296            changes |= FILL_IN_COMPONENT;
6297        }
6298        mFlags |= other.mFlags;
6299        if (other.mSourceBounds != null
6300                && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
6301            mSourceBounds = new Rect(other.mSourceBounds);
6302            changes |= FILL_IN_SOURCE_BOUNDS;
6303        }
6304        if (mExtras == null) {
6305            if (other.mExtras != null) {
6306                mExtras = new Bundle(other.mExtras);
6307            }
6308        } else if (other.mExtras != null) {
6309            try {
6310                Bundle newb = new Bundle(other.mExtras);
6311                newb.putAll(mExtras);
6312                mExtras = newb;
6313            } catch (RuntimeException e) {
6314                // Modifying the extras can cause us to unparcel the contents
6315                // of the bundle, and if we do this in the system process that
6316                // may fail.  We really should handle this (i.e., the Bundle
6317                // impl shouldn't be on top of a plain map), but for now just
6318                // ignore it and keep the original contents. :(
6319                Log.w("Intent", "Failure filling in extras", e);
6320            }
6321        }
6322        return changes;
6323    }
6324
6325    /**
6326     * Wrapper class holding an Intent and implementing comparisons on it for
6327     * the purpose of filtering.  The class implements its
6328     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
6329     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
6330     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
6331     * on the wrapped Intent.
6332     */
6333    public static final class FilterComparison {
6334        private final Intent mIntent;
6335        private final int mHashCode;
6336
6337        public FilterComparison(Intent intent) {
6338            mIntent = intent;
6339            mHashCode = intent.filterHashCode();
6340        }
6341
6342        /**
6343         * Return the Intent that this FilterComparison represents.
6344         * @return Returns the Intent held by the FilterComparison.  Do
6345         * not modify!
6346         */
6347        public Intent getIntent() {
6348            return mIntent;
6349        }
6350
6351        @Override
6352        public boolean equals(Object obj) {
6353            if (obj instanceof FilterComparison) {
6354                Intent other = ((FilterComparison)obj).mIntent;
6355                return mIntent.filterEquals(other);
6356            }
6357            return false;
6358        }
6359
6360        @Override
6361        public int hashCode() {
6362            return mHashCode;
6363        }
6364    }
6365
6366    /**
6367     * Determine if two intents are the same for the purposes of intent
6368     * resolution (filtering). That is, if their action, data, type,
6369     * class, and categories are the same.  This does <em>not</em> compare
6370     * any extra data included in the intents.
6371     *
6372     * @param other The other Intent to compare against.
6373     *
6374     * @return Returns true if action, data, type, class, and categories
6375     *         are the same.
6376     */
6377    public boolean filterEquals(Intent other) {
6378        if (other == null) {
6379            return false;
6380        }
6381        if (mAction != other.mAction) {
6382            if (mAction != null) {
6383                if (!mAction.equals(other.mAction)) {
6384                    return false;
6385                }
6386            } else {
6387                if (!other.mAction.equals(mAction)) {
6388                    return false;
6389                }
6390            }
6391        }
6392        if (mData != other.mData) {
6393            if (mData != null) {
6394                if (!mData.equals(other.mData)) {
6395                    return false;
6396                }
6397            } else {
6398                if (!other.mData.equals(mData)) {
6399                    return false;
6400                }
6401            }
6402        }
6403        if (mType != other.mType) {
6404            if (mType != null) {
6405                if (!mType.equals(other.mType)) {
6406                    return false;
6407                }
6408            } else {
6409                if (!other.mType.equals(mType)) {
6410                    return false;
6411                }
6412            }
6413        }
6414        if (mPackage != other.mPackage) {
6415            if (mPackage != null) {
6416                if (!mPackage.equals(other.mPackage)) {
6417                    return false;
6418                }
6419            } else {
6420                if (!other.mPackage.equals(mPackage)) {
6421                    return false;
6422                }
6423            }
6424        }
6425        if (mComponent != other.mComponent) {
6426            if (mComponent != null) {
6427                if (!mComponent.equals(other.mComponent)) {
6428                    return false;
6429                }
6430            } else {
6431                if (!other.mComponent.equals(mComponent)) {
6432                    return false;
6433                }
6434            }
6435        }
6436        if (mCategories != other.mCategories) {
6437            if (mCategories != null) {
6438                if (!mCategories.equals(other.mCategories)) {
6439                    return false;
6440                }
6441            } else {
6442                if (!other.mCategories.equals(mCategories)) {
6443                    return false;
6444                }
6445            }
6446        }
6447
6448        return true;
6449    }
6450
6451    /**
6452     * Generate hash code that matches semantics of filterEquals().
6453     *
6454     * @return Returns the hash value of the action, data, type, class, and
6455     *         categories.
6456     *
6457     * @see #filterEquals
6458     */
6459    public int filterHashCode() {
6460        int code = 0;
6461        if (mAction != null) {
6462            code += mAction.hashCode();
6463        }
6464        if (mData != null) {
6465            code += mData.hashCode();
6466        }
6467        if (mType != null) {
6468            code += mType.hashCode();
6469        }
6470        if (mPackage != null) {
6471            code += mPackage.hashCode();
6472        }
6473        if (mComponent != null) {
6474            code += mComponent.hashCode();
6475        }
6476        if (mCategories != null) {
6477            code += mCategories.hashCode();
6478        }
6479        return code;
6480    }
6481
6482    @Override
6483    public String toString() {
6484        StringBuilder b = new StringBuilder(128);
6485
6486        b.append("Intent { ");
6487        toShortString(b, true, true, true, false);
6488        b.append(" }");
6489
6490        return b.toString();
6491    }
6492
6493    /** @hide */
6494    public String toInsecureString() {
6495        StringBuilder b = new StringBuilder(128);
6496
6497        b.append("Intent { ");
6498        toShortString(b, false, true, true, false);
6499        b.append(" }");
6500
6501        return b.toString();
6502    }
6503
6504    /** @hide */
6505    public String toInsecureStringWithClip() {
6506        StringBuilder b = new StringBuilder(128);
6507
6508        b.append("Intent { ");
6509        toShortString(b, false, true, true, true);
6510        b.append(" }");
6511
6512        return b.toString();
6513    }
6514
6515    /** @hide */
6516    public String toShortString(boolean secure, boolean comp, boolean extras, boolean clip) {
6517        StringBuilder b = new StringBuilder(128);
6518        toShortString(b, secure, comp, extras, clip);
6519        return b.toString();
6520    }
6521
6522    /** @hide */
6523    public void toShortString(StringBuilder b, boolean secure, boolean comp, boolean extras,
6524            boolean clip) {
6525        boolean first = true;
6526        if (mAction != null) {
6527            b.append("act=").append(mAction);
6528            first = false;
6529        }
6530        if (mCategories != null) {
6531            if (!first) {
6532                b.append(' ');
6533            }
6534            first = false;
6535            b.append("cat=[");
6536            Iterator<String> i = mCategories.iterator();
6537            boolean didone = false;
6538            while (i.hasNext()) {
6539                if (didone) b.append(",");
6540                didone = true;
6541                b.append(i.next());
6542            }
6543            b.append("]");
6544        }
6545        if (mData != null) {
6546            if (!first) {
6547                b.append(' ');
6548            }
6549            first = false;
6550            b.append("dat=");
6551            if (secure) {
6552                b.append(mData.toSafeString());
6553            } else {
6554                b.append(mData);
6555            }
6556        }
6557        if (mType != null) {
6558            if (!first) {
6559                b.append(' ');
6560            }
6561            first = false;
6562            b.append("typ=").append(mType);
6563        }
6564        if (mFlags != 0) {
6565            if (!first) {
6566                b.append(' ');
6567            }
6568            first = false;
6569            b.append("flg=0x").append(Integer.toHexString(mFlags));
6570        }
6571        if (mPackage != null) {
6572            if (!first) {
6573                b.append(' ');
6574            }
6575            first = false;
6576            b.append("pkg=").append(mPackage);
6577        }
6578        if (comp && mComponent != null) {
6579            if (!first) {
6580                b.append(' ');
6581            }
6582            first = false;
6583            b.append("cmp=").append(mComponent.flattenToShortString());
6584        }
6585        if (mSourceBounds != null) {
6586            if (!first) {
6587                b.append(' ');
6588            }
6589            first = false;
6590            b.append("bnds=").append(mSourceBounds.toShortString());
6591        }
6592        if (mClipData != null) {
6593            if (!first) {
6594                b.append(' ');
6595            }
6596            first = false;
6597            if (clip) {
6598                b.append("clip={");
6599                mClipData.toShortString(b);
6600                b.append('}');
6601            } else {
6602                b.append("(has clip)");
6603            }
6604        }
6605        if (extras && mExtras != null) {
6606            if (!first) {
6607                b.append(' ');
6608            }
6609            first = false;
6610            b.append("(has extras)");
6611        }
6612        if (mSelector != null) {
6613            b.append(" sel={");
6614            mSelector.toShortString(b, secure, comp, extras, clip);
6615            b.append("}");
6616        }
6617    }
6618
6619    /**
6620     * Call {@link #toUri} with 0 flags.
6621     * @deprecated Use {@link #toUri} instead.
6622     */
6623    @Deprecated
6624    public String toURI() {
6625        return toUri(0);
6626    }
6627
6628    /**
6629     * Convert this Intent into a String holding a URI representation of it.
6630     * The returned URI string has been properly URI encoded, so it can be
6631     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
6632     * Intent's data as the base URI, with an additional fragment describing
6633     * the action, categories, type, flags, package, component, and extras.
6634     *
6635     * <p>You can convert the returned string back to an Intent with
6636     * {@link #getIntent}.
6637     *
6638     * @param flags Additional operating flags.  Either 0 or
6639     * {@link #URI_INTENT_SCHEME}.
6640     *
6641     * @return Returns a URI encoding URI string describing the entire contents
6642     * of the Intent.
6643     */
6644    public String toUri(int flags) {
6645        StringBuilder uri = new StringBuilder(128);
6646        String scheme = null;
6647        if (mData != null) {
6648            String data = mData.toString();
6649            if ((flags&URI_INTENT_SCHEME) != 0) {
6650                final int N = data.length();
6651                for (int i=0; i<N; i++) {
6652                    char c = data.charAt(i);
6653                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
6654                            || c == '.' || c == '-') {
6655                        continue;
6656                    }
6657                    if (c == ':' && i > 0) {
6658                        // Valid scheme.
6659                        scheme = data.substring(0, i);
6660                        uri.append("intent:");
6661                        data = data.substring(i+1);
6662                        break;
6663                    }
6664
6665                    // No scheme.
6666                    break;
6667                }
6668            }
6669            uri.append(data);
6670
6671        } else if ((flags&URI_INTENT_SCHEME) != 0) {
6672            uri.append("intent:");
6673        }
6674
6675        uri.append("#Intent;");
6676
6677        toUriInner(uri, scheme, flags);
6678        if (mSelector != null) {
6679            uri.append("SEL;");
6680            // Note that for now we are not going to try to handle the
6681            // data part; not clear how to represent this as a URI, and
6682            // not much utility in it.
6683            mSelector.toUriInner(uri, null, flags);
6684        }
6685
6686        uri.append("end");
6687
6688        return uri.toString();
6689    }
6690
6691    private void toUriInner(StringBuilder uri, String scheme, int flags) {
6692        if (scheme != null) {
6693            uri.append("scheme=").append(scheme).append(';');
6694        }
6695        if (mAction != null) {
6696            uri.append("action=").append(Uri.encode(mAction)).append(';');
6697        }
6698        if (mCategories != null) {
6699            for (String category : mCategories) {
6700                uri.append("category=").append(Uri.encode(category)).append(';');
6701            }
6702        }
6703        if (mType != null) {
6704            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
6705        }
6706        if (mFlags != 0) {
6707            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
6708        }
6709        if (mPackage != null) {
6710            uri.append("package=").append(Uri.encode(mPackage)).append(';');
6711        }
6712        if (mComponent != null) {
6713            uri.append("component=").append(Uri.encode(
6714                    mComponent.flattenToShortString(), "/")).append(';');
6715        }
6716        if (mSourceBounds != null) {
6717            uri.append("sourceBounds=")
6718                    .append(Uri.encode(mSourceBounds.flattenToString()))
6719                    .append(';');
6720        }
6721        if (mExtras != null) {
6722            for (String key : mExtras.keySet()) {
6723                final Object value = mExtras.get(key);
6724                char entryType =
6725                        value instanceof String    ? 'S' :
6726                        value instanceof Boolean   ? 'B' :
6727                        value instanceof Byte      ? 'b' :
6728                        value instanceof Character ? 'c' :
6729                        value instanceof Double    ? 'd' :
6730                        value instanceof Float     ? 'f' :
6731                        value instanceof Integer   ? 'i' :
6732                        value instanceof Long      ? 'l' :
6733                        value instanceof Short     ? 's' :
6734                        '\0';
6735
6736                if (entryType != '\0') {
6737                    uri.append(entryType);
6738                    uri.append('.');
6739                    uri.append(Uri.encode(key));
6740                    uri.append('=');
6741                    uri.append(Uri.encode(value.toString()));
6742                    uri.append(';');
6743                }
6744            }
6745        }
6746    }
6747
6748    public int describeContents() {
6749        return (mExtras != null) ? mExtras.describeContents() : 0;
6750    }
6751
6752    public void writeToParcel(Parcel out, int flags) {
6753        out.writeString(mAction);
6754        Uri.writeToParcel(out, mData);
6755        out.writeString(mType);
6756        out.writeInt(mFlags);
6757        out.writeString(mPackage);
6758        ComponentName.writeToParcel(mComponent, out);
6759
6760        if (mSourceBounds != null) {
6761            out.writeInt(1);
6762            mSourceBounds.writeToParcel(out, flags);
6763        } else {
6764            out.writeInt(0);
6765        }
6766
6767        if (mCategories != null) {
6768            out.writeInt(mCategories.size());
6769            for (String category : mCategories) {
6770                out.writeString(category);
6771            }
6772        } else {
6773            out.writeInt(0);
6774        }
6775
6776        if (mSelector != null) {
6777            out.writeInt(1);
6778            mSelector.writeToParcel(out, flags);
6779        } else {
6780            out.writeInt(0);
6781        }
6782
6783        if (mClipData != null) {
6784            out.writeInt(1);
6785            mClipData.writeToParcel(out, flags);
6786        } else {
6787            out.writeInt(0);
6788        }
6789
6790        out.writeBundle(mExtras);
6791    }
6792
6793    public static final Parcelable.Creator<Intent> CREATOR
6794            = new Parcelable.Creator<Intent>() {
6795        public Intent createFromParcel(Parcel in) {
6796            return new Intent(in);
6797        }
6798        public Intent[] newArray(int size) {
6799            return new Intent[size];
6800        }
6801    };
6802
6803    /** @hide */
6804    protected Intent(Parcel in) {
6805        readFromParcel(in);
6806    }
6807
6808    public void readFromParcel(Parcel in) {
6809        setAction(in.readString());
6810        mData = Uri.CREATOR.createFromParcel(in);
6811        mType = in.readString();
6812        mFlags = in.readInt();
6813        mPackage = in.readString();
6814        mComponent = ComponentName.readFromParcel(in);
6815
6816        if (in.readInt() != 0) {
6817            mSourceBounds = Rect.CREATOR.createFromParcel(in);
6818        }
6819
6820        int N = in.readInt();
6821        if (N > 0) {
6822            mCategories = new HashSet<String>();
6823            int i;
6824            for (i=0; i<N; i++) {
6825                mCategories.add(in.readString().intern());
6826            }
6827        } else {
6828            mCategories = null;
6829        }
6830
6831        if (in.readInt() != 0) {
6832            mSelector = new Intent(in);
6833        }
6834
6835        if (in.readInt() != 0) {
6836            mClipData = new ClipData(in);
6837        }
6838
6839        mExtras = in.readBundle();
6840    }
6841
6842    /**
6843     * Parses the "intent" element (and its children) from XML and instantiates
6844     * an Intent object.  The given XML parser should be located at the tag
6845     * where parsing should start (often named "intent"), from which the
6846     * basic action, data, type, and package and class name will be
6847     * retrieved.  The function will then parse in to any child elements,
6848     * looking for <category android:name="xxx"> tags to add categories and
6849     * <extra android:name="xxx" android:value="yyy"> to attach extra data
6850     * to the intent.
6851     *
6852     * @param resources The Resources to use when inflating resources.
6853     * @param parser The XML parser pointing at an "intent" tag.
6854     * @param attrs The AttributeSet interface for retrieving extended
6855     * attribute data at the current <var>parser</var> location.
6856     * @return An Intent object matching the XML data.
6857     * @throws XmlPullParserException If there was an XML parsing error.
6858     * @throws IOException If there was an I/O error.
6859     */
6860    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
6861            throws XmlPullParserException, IOException {
6862        Intent intent = new Intent();
6863
6864        TypedArray sa = resources.obtainAttributes(attrs,
6865                com.android.internal.R.styleable.Intent);
6866
6867        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
6868
6869        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
6870        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
6871        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
6872
6873        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
6874        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
6875        if (packageName != null && className != null) {
6876            intent.setComponent(new ComponentName(packageName, className));
6877        }
6878
6879        sa.recycle();
6880
6881        int outerDepth = parser.getDepth();
6882        int type;
6883        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
6884               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
6885            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
6886                continue;
6887            }
6888
6889            String nodeName = parser.getName();
6890            if (nodeName.equals("category")) {
6891                sa = resources.obtainAttributes(attrs,
6892                        com.android.internal.R.styleable.IntentCategory);
6893                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
6894                sa.recycle();
6895
6896                if (cat != null) {
6897                    intent.addCategory(cat);
6898                }
6899                XmlUtils.skipCurrentTag(parser);
6900
6901            } else if (nodeName.equals("extra")) {
6902                if (intent.mExtras == null) {
6903                    intent.mExtras = new Bundle();
6904                }
6905                resources.parseBundleExtra("extra", attrs, intent.mExtras);
6906                XmlUtils.skipCurrentTag(parser);
6907
6908            } else {
6909                XmlUtils.skipCurrentTag(parser);
6910            }
6911        }
6912
6913        return intent;
6914    }
6915
6916    /**
6917     * Normalize a MIME data type.
6918     *
6919     * <p>A normalized MIME type has white-space trimmed,
6920     * content-type parameters removed, and is lower-case.
6921     * This aligns the type with Android best practices for
6922     * intent filtering.
6923     *
6924     * <p>For example, "text/plain; charset=utf-8" becomes "text/plain".
6925     * "text/x-vCard" becomes "text/x-vcard".
6926     *
6927     * <p>All MIME types received from outside Android (such as user input,
6928     * or external sources like Bluetooth, NFC, or the Internet) should
6929     * be normalized before they are used to create an Intent.
6930     *
6931     * @param type MIME data type to normalize
6932     * @return normalized MIME data type, or null if the input was null
6933     * @see {@link #setType}
6934     * @see {@link #setTypeAndNormalize}
6935     */
6936    public static String normalizeMimeType(String type) {
6937        if (type == null) {
6938            return null;
6939        }
6940
6941        type = type.trim().toLowerCase(Locale.US);
6942
6943        final int semicolonIndex = type.indexOf(';');
6944        if (semicolonIndex != -1) {
6945            type = type.substring(0, semicolonIndex);
6946        }
6947        return type;
6948    }
6949
6950    /**
6951     * Migrate any {@link #EXTRA_STREAM} in {@link #ACTION_SEND} and
6952     * {@link #ACTION_SEND_MULTIPLE} to {@link ClipData}. Also inspects nested
6953     * intents in {@link #ACTION_CHOOSER}.
6954     *
6955     * @return Whether any contents were migrated.
6956     * @hide
6957     */
6958    public boolean migrateExtraStreamToClipData() {
6959        // Refuse to touch if extras already parcelled
6960        if (mExtras != null && mExtras.isParcelled()) return false;
6961
6962        // Bail when someone already gave us ClipData
6963        if (getClipData() != null) return false;
6964
6965        final String action = getAction();
6966        if (ACTION_CHOOSER.equals(action)) {
6967            try {
6968                // Inspect target intent to see if we need to migrate
6969                final Intent target = getParcelableExtra(EXTRA_INTENT);
6970                if (target != null && target.migrateExtraStreamToClipData()) {
6971                    // Since we migrated in child, we need to promote ClipData
6972                    // and flags to ourselves to grant.
6973                    setClipData(target.getClipData());
6974                    addFlags(target.getFlags()
6975                            & (FLAG_GRANT_READ_URI_PERMISSION | FLAG_GRANT_WRITE_URI_PERMISSION));
6976                    return true;
6977                } else {
6978                    return false;
6979                }
6980            } catch (ClassCastException e) {
6981            }
6982
6983        } else if (ACTION_SEND.equals(action)) {
6984            try {
6985                final Uri stream = getParcelableExtra(EXTRA_STREAM);
6986                final CharSequence text = getCharSequenceExtra(EXTRA_TEXT);
6987                final String htmlText = getStringExtra(EXTRA_HTML_TEXT);
6988                if (stream != null || text != null || htmlText != null) {
6989                    final ClipData clipData = new ClipData(
6990                            null, new String[] { getType() },
6991                            new ClipData.Item(text, htmlText, null, stream));
6992                    setClipData(clipData);
6993                    addFlags(FLAG_GRANT_READ_URI_PERMISSION);
6994                    return true;
6995                }
6996            } catch (ClassCastException e) {
6997            }
6998
6999        } else if (ACTION_SEND_MULTIPLE.equals(action)) {
7000            try {
7001                final ArrayList<Uri> streams = getParcelableArrayListExtra(EXTRA_STREAM);
7002                final ArrayList<CharSequence> texts = getCharSequenceArrayListExtra(EXTRA_TEXT);
7003                final ArrayList<String> htmlTexts = getStringArrayListExtra(EXTRA_HTML_TEXT);
7004                int num = -1;
7005                if (streams != null) {
7006                    num = streams.size();
7007                }
7008                if (texts != null) {
7009                    if (num >= 0 && num != texts.size()) {
7010                        // Wha...!  F- you.
7011                        return false;
7012                    }
7013                    num = texts.size();
7014                }
7015                if (htmlTexts != null) {
7016                    if (num >= 0 && num != htmlTexts.size()) {
7017                        // Wha...!  F- you.
7018                        return false;
7019                    }
7020                    num = htmlTexts.size();
7021                }
7022                if (num > 0) {
7023                    final ClipData clipData = new ClipData(
7024                            null, new String[] { getType() },
7025                            makeClipItem(streams, texts, htmlTexts, 0));
7026
7027                    for (int i = 1; i < num; i++) {
7028                        clipData.addItem(makeClipItem(streams, texts, htmlTexts, i));
7029                    }
7030
7031                    setClipData(clipData);
7032                    addFlags(FLAG_GRANT_READ_URI_PERMISSION);
7033                    return true;
7034                }
7035            } catch (ClassCastException e) {
7036            }
7037        }
7038
7039        return false;
7040    }
7041
7042    private static ClipData.Item makeClipItem(ArrayList<Uri> streams, ArrayList<CharSequence> texts,
7043            ArrayList<String> htmlTexts, int which) {
7044        Uri uri = streams != null ? streams.get(which) : null;
7045        CharSequence text = texts != null ? texts.get(which) : null;
7046        String htmlText = htmlTexts != null ? htmlTexts.get(which) : null;
7047        return new ClipData.Item(text, htmlText, null, uri);
7048    }
7049}
7050