Intent.java revision 27b28b3f62bd3b54fa13acd5d035940b9be464f3
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;
37import com.android.common.XmlUtils;
38
39import java.io.IOException;
40import java.io.Serializable;
41import java.net.URISyntaxException;
42import java.util.ArrayList;
43import java.util.HashSet;
44import java.util.Iterator;
45import java.util.Set;
46
47/**
48 * An intent is an abstract description of an operation to be performed.  It
49 * can be used with {@link Context#startActivity(Intent) startActivity} to
50 * launch an {@link android.app.Activity},
51 * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
52 * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
53 * and {@link android.content.Context#startService} or
54 * {@link android.content.Context#bindService} to communicate with a
55 * background {@link android.app.Service}.
56 *
57 * <p>An Intent provides a facility for performing late runtime binding between
58 * the code in different applications.  Its most significant use is in the
59 * launching of activities, where it can be thought of as the glue between
60 * activities. It is
61 * basically a passive data structure holding an abstract description of an
62 * action to be performed. The primary pieces of information in an intent
63 * are:</p>
64 *
65 * <ul>
66 *   <li> <p><b>action</b> -- The general action to be performed, such as
67 *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
68 *     etc.</p>
69 *   </li>
70 *   <li> <p><b>data</b> -- The data to operate on, such as a person record
71 *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
72 *   </li>
73 * </ul>
74 *
75 *
76 * <p>Some examples of action/data pairs are:</p>
77 *
78 * <ul>
79 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
80 *     information about the person whose identifier is "1".</p>
81 *   </li>
82 *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
83 *     the phone dialer with the person filled in.</p>
84 *   </li>
85 *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
86 *     the phone dialer with the given number filled in.  Note how the
87 *     VIEW action does what what is considered the most reasonable thing for
88 *     a particular URI.</p>
89 *   </li>
90 *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
91 *     the phone dialer with the given number filled in.</p>
92 *   </li>
93 *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
94 *     information about the person whose identifier is "1".</p>
95 *   </li>
96 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
97 *     a list of people, which the user can browse through.  This example is a
98 *     typical top-level entry into the Contacts application, showing you the
99 *     list of people. Selecting a particular person to view would result in a
100 *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
101 *     being used to start an activity to display that person.</p>
102 *   </li>
103 * </ul>
104 *
105 * <p>In addition to these primary attributes, there are a number of secondary
106 * attributes that you can also include with an intent:</p>
107 *
108 * <ul>
109 *     <li> <p><b>category</b> -- Gives additional information about the action
110 *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
111 *         appear in the Launcher as a top-level application, while
112 *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
113 *         of alternative actions the user can perform on a piece of data.</p>
114 *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
115 *         intent data.  Normally the type is inferred from the data itself.
116 *         By setting this attribute, you disable that evaluation and force
117 *         an explicit type.</p>
118 *     <li> <p><b>component</b> -- Specifies an explicit name of a component
119 *         class to use for the intent.  Normally this is determined by looking
120 *         at the other information in the intent (the action, data/type, and
121 *         categories) and matching that with a component that can handle it.
122 *         If this attribute is set then none of the evaluation is performed,
123 *         and this component is used exactly as is.  By specifying this attribute,
124 *         all of the other Intent attributes become optional.</p>
125 *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
126 *         This can be used to provide extended information to the component.
127 *         For example, if we have a action to send an e-mail message, we could
128 *         also include extra pieces of data here to supply a subject, body,
129 *         etc.</p>
130 * </ul>
131 *
132 * <p>Here are some examples of other operations you can specify as intents
133 * using these additional parameters:</p>
134 *
135 * <ul>
136 *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
137 *     Launch the home screen.</p>
138 *   </li>
139 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
140 *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
141 *     vnd.android.cursor.item/phone}</i></b>
142 *     -- Display the list of people's phone numbers, allowing the user to
143 *     browse through them and pick one and return it to the parent activity.</p>
144 *   </li>
145 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
146 *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
147 *     -- Display all pickers for data that can be opened with
148 *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
149 *     allowing the user to pick one of them and then some data inside of it
150 *     and returning the resulting URI to the caller.  This can be used,
151 *     for example, in an e-mail application to allow the user to pick some
152 *     data to include as an attachment.</p>
153 *   </li>
154 * </ul>
155 *
156 * <p>There are a variety of standard Intent action and category constants
157 * defined in the Intent class, but applications can also define their own.
158 * These strings use java style scoping, to ensure they are unique -- for
159 * example, the standard {@link #ACTION_VIEW} is called
160 * "android.intent.action.VIEW".</p>
161 *
162 * <p>Put together, the set of actions, data types, categories, and extra data
163 * defines a language for the system allowing for the expression of phrases
164 * such as "call john smith's cell".  As applications are added to the system,
165 * they can extend this language by adding new actions, types, and categories, or
166 * they can modify the behavior of existing phrases by supplying their own
167 * activities that handle them.</p>
168 *
169 * <a name="IntentResolution"></a>
170 * <h3>Intent Resolution</h3>
171 *
172 * <p>There are two primary forms of intents you will use.
173 *
174 * <ul>
175 *     <li> <p><b>Explicit Intents</b> have specified a component (via
176 *     {@link #setComponent} or {@link #setClass}), which provides the exact
177 *     class to be run.  Often these will not include any other information,
178 *     simply being a way for an application to launch various internal
179 *     activities it has as the user interacts with the application.
180 *
181 *     <li> <p><b>Implicit Intents</b> have not specified a component;
182 *     instead, they must include enough information for the system to
183 *     determine which of the available components is best to run for that
184 *     intent.
185 * </ul>
186 *
187 * <p>When using implicit intents, given such an arbitrary intent we need to
188 * know what to do with it. This is handled by the process of <em>Intent
189 * resolution</em>, which maps an Intent to an {@link android.app.Activity},
190 * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
191 * more activities/receivers) that can handle it.</p>
192 *
193 * <p>The intent resolution mechanism basically revolves around matching an
194 * Intent against all of the &lt;intent-filter&gt; descriptions in the
195 * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
196 * objects explicitly registered with {@link Context#registerReceiver}.)  More
197 * details on this can be found in the documentation on the {@link
198 * IntentFilter} class.</p>
199 *
200 * <p>There are three pieces of information in the Intent that are used for
201 * resolution: the action, type, and category.  Using this information, a query
202 * is done on the {@link PackageManager} for a component that can handle the
203 * intent. The appropriate component is determined based on the intent
204 * information supplied in the <code>AndroidManifest.xml</code> file as
205 * follows:</p>
206 *
207 * <ul>
208 *     <li> <p>The <b>action</b>, if given, must be listed by the component as
209 *         one it handles.</p>
210 *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
211 *         already supplied in the Intent.  Like the action, if a type is
212 *         included in the intent (either explicitly or implicitly in its
213 *         data), then this must be listed by the component as one it handles.</p>
214 *     <li> For data that is not a <code>content:</code> URI and where no explicit
215 *         type is included in the Intent, instead the <b>scheme</b> of the
216 *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
217 *         considered. Again like the action, if we are matching a scheme it
218 *         must be listed by the component as one it can handle.
219 *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
220 *         by the activity as categories it handles.  That is, if you include
221 *         the categories {@link #CATEGORY_LAUNCHER} and
222 *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
223 *         with an intent that lists <em>both</em> of those categories.
224 *         Activities will very often need to support the
225 *         {@link #CATEGORY_DEFAULT} so that they can be found by
226 *         {@link Context#startActivity Context.startActivity()}.</p>
227 * </ul>
228 *
229 * <p>For example, consider the Note Pad sample application that
230 * allows user to browse through a list of notes data and view details about
231 * individual items.  Text in italics indicate places were you would replace a
232 * name with one specific to your own package.</p>
233 *
234 * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
235 *       package="<i>com.android.notepad</i>"&gt;
236 *     &lt;application android:icon="@drawable/app_notes"
237 *             android:label="@string/app_name"&gt;
238 *
239 *         &lt;provider class=".NotePadProvider"
240 *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
241 *
242 *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
243 *             &lt;intent-filter&gt;
244 *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
245 *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
246 *             &lt;/intent-filter&gt;
247 *             &lt;intent-filter&gt;
248 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
249 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
250 *                 &lt;action android:name="android.intent.action.PICK" /&gt;
251 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
252 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
253 *             &lt;/intent-filter&gt;
254 *             &lt;intent-filter&gt;
255 *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
256 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
257 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
258 *             &lt;/intent-filter&gt;
259 *         &lt;/activity&gt;
260 *
261 *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
262 *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
263 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
264 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
265 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
266 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
267 *             &lt;/intent-filter&gt;
268 *
269 *             &lt;intent-filter&gt;
270 *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
271 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
272 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
273 *             &lt;/intent-filter&gt;
274 *
275 *         &lt;/activity&gt;
276 *
277 *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
278 *                 android:theme="@android:style/Theme.Dialog"&gt;
279 *             &lt;intent-filter android:label="@string/resolve_title"&gt;
280 *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
281 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
282 *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
283 *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
284 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
285 *             &lt;/intent-filter&gt;
286 *         &lt;/activity&gt;
287 *
288 *     &lt;/application&gt;
289 * &lt;/manifest&gt;</pre>
290 *
291 * <p>The first activity,
292 * <code>com.android.notepad.NotesList</code>, serves as our main
293 * entry into the app.  It can do three things as described by its three intent
294 * templates:
295 * <ol>
296 * <li><pre>
297 * &lt;intent-filter&gt;
298 *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
299 *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
300 * &lt;/intent-filter&gt;</pre>
301 * <p>This provides a top-level entry into the NotePad application: the standard
302 * MAIN action is a main entry point (not requiring any other information in
303 * the Intent), and the LAUNCHER category says that this entry point should be
304 * listed in the application launcher.</p>
305 * <li><pre>
306 * &lt;intent-filter&gt;
307 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
308 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
309 *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
310 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
311 *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
312 * &lt;/intent-filter&gt;</pre>
313 * <p>This declares the things that the activity can do on a directory of
314 * notes.  The type being supported is given with the &lt;type&gt; tag, where
315 * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
316 * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
317 * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
318 * The activity allows the user to view or edit the directory of data (via
319 * the VIEW and EDIT actions), or to pick a particular note and return it
320 * to the caller (via the PICK action).  Note also the DEFAULT category
321 * supplied here: this is <em>required</em> for the
322 * {@link Context#startActivity Context.startActivity} method to resolve your
323 * activity when its component name is not explicitly specified.</p>
324 * <li><pre>
325 * &lt;intent-filter&gt;
326 *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
327 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
328 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
329 * &lt;/intent-filter&gt;</pre>
330 * <p>This filter describes the ability return to the caller a note selected by
331 * the user without needing to know where it came from.  The data type
332 * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
333 * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
334 * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
335 * The GET_CONTENT action is similar to the PICK action, where the activity
336 * will return to its caller a piece of data selected by the user.  Here,
337 * however, the caller specifies the type of data they desire instead of
338 * the type of data the user will be picking from.</p>
339 * </ol>
340 *
341 * <p>Given these capabilities, the following intents will resolve to the
342 * NotesList activity:</p>
343 *
344 * <ul>
345 *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
346 *         activities that can be used as top-level entry points into an
347 *         application.</p>
348 *     <li> <p><b>{ action=android.app.action.MAIN,
349 *         category=android.app.category.LAUNCHER }</b> is the actual intent
350 *         used by the Launcher to populate its top-level list.</p>
351 *     <li> <p><b>{ action=android.intent.action.VIEW
352 *          data=content://com.google.provider.NotePad/notes }</b>
353 *         displays a list of all the notes under
354 *         "content://com.google.provider.NotePad/notes", which
355 *         the user can browse through and see the details on.</p>
356 *     <li> <p><b>{ action=android.app.action.PICK
357 *          data=content://com.google.provider.NotePad/notes }</b>
358 *         provides a list of the notes under
359 *         "content://com.google.provider.NotePad/notes", from which
360 *         the user can pick a note whose data URL is returned back to the caller.</p>
361 *     <li> <p><b>{ action=android.app.action.GET_CONTENT
362 *          type=vnd.android.cursor.item/vnd.google.note }</b>
363 *         is similar to the pick action, but allows the caller to specify the
364 *         kind of data they want back so that the system can find the appropriate
365 *         activity to pick something of that data type.</p>
366 * </ul>
367 *
368 * <p>The second activity,
369 * <code>com.android.notepad.NoteEditor</code>, shows the user a single
370 * note entry and allows them to edit it.  It can do two things as described
371 * by its two intent templates:
372 * <ol>
373 * <li><pre>
374 * &lt;intent-filter android:label="@string/resolve_edit"&gt;
375 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
376 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
377 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
378 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
379 * &lt;/intent-filter&gt;</pre>
380 * <p>The first, primary, purpose of this activity is to let the user interact
381 * with a single note, as decribed by the MIME type
382 * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
383 * either VIEW a note or allow the user to EDIT it.  Again we support the
384 * DEFAULT category to allow the activity to be launched without explicitly
385 * specifying its component.</p>
386 * <li><pre>
387 * &lt;intent-filter&gt;
388 *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
389 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
390 *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
391 * &lt;/intent-filter&gt;</pre>
392 * <p>The secondary use of this activity is to insert a new note entry into
393 * an existing directory of notes.  This is used when the user creates a new
394 * note: the INSERT action is executed on the directory of notes, causing
395 * this activity to run and have the user create the new note data which
396 * it then adds to the content provider.</p>
397 * </ol>
398 *
399 * <p>Given these capabilities, the following intents will resolve to the
400 * NoteEditor activity:</p>
401 *
402 * <ul>
403 *     <li> <p><b>{ action=android.intent.action.VIEW
404 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
405 *         shows the user the content of note <var>{ID}</var>.</p>
406 *     <li> <p><b>{ action=android.app.action.EDIT
407 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
408 *         allows the user to edit the content of note <var>{ID}</var>.</p>
409 *     <li> <p><b>{ action=android.app.action.INSERT
410 *          data=content://com.google.provider.NotePad/notes }</b>
411 *         creates a new, empty note in the notes list at
412 *         "content://com.google.provider.NotePad/notes"
413 *         and allows the user to edit it.  If they keep their changes, the URI
414 *         of the newly created note is returned to the caller.</p>
415 * </ul>
416 *
417 * <p>The last activity,
418 * <code>com.android.notepad.TitleEditor</code>, allows the user to
419 * edit the title of a note.  This could be implemented as a class that the
420 * application directly invokes (by explicitly setting its component in
421 * the Intent), but here we show a way you can publish alternative
422 * operations on existing data:</p>
423 *
424 * <pre>
425 * &lt;intent-filter android:label="@string/resolve_title"&gt;
426 *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
427 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
428 *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
429 *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
430 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
431 * &lt;/intent-filter&gt;</pre>
432 *
433 * <p>In the single intent template here, we
434 * have created our own private action called
435 * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
436 * edit the title of a note.  It must be invoked on a specific note
437 * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
438 * view and edit actions, but here displays and edits the title contained
439 * in the note data.
440 *
441 * <p>In addition to supporting the default category as usual, our title editor
442 * also supports two other standard categories: ALTERNATIVE and
443 * SELECTED_ALTERNATIVE.  Implementing
444 * these categories allows others to find the special action it provides
445 * without directly knowing about it, through the
446 * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
447 * more often to build dynamic menu items with
448 * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
449 * template here was also supply an explicit name for the template
450 * (via <code>android:label="@string/resolve_title"</code>) to better control
451 * what the user sees when presented with this activity as an alternative
452 * action to the data they are viewing.
453 *
454 * <p>Given these capabilities, the following intent will resolve to the
455 * TitleEditor activity:</p>
456 *
457 * <ul>
458 *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
459 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
460 *         displays and allows the user to edit the title associated
461 *         with note <var>{ID}</var>.</p>
462 * </ul>
463 *
464 * <h3>Standard Activity Actions</h3>
465 *
466 * <p>These are the current standard actions that Intent defines for launching
467 * activities (usually through {@link Context#startActivity}.  The most
468 * important, and by far most frequently used, are {@link #ACTION_MAIN} and
469 * {@link #ACTION_EDIT}.
470 *
471 * <ul>
472 *     <li> {@link #ACTION_MAIN}
473 *     <li> {@link #ACTION_VIEW}
474 *     <li> {@link #ACTION_ATTACH_DATA}
475 *     <li> {@link #ACTION_EDIT}
476 *     <li> {@link #ACTION_PICK}
477 *     <li> {@link #ACTION_CHOOSER}
478 *     <li> {@link #ACTION_GET_CONTENT}
479 *     <li> {@link #ACTION_DIAL}
480 *     <li> {@link #ACTION_CALL}
481 *     <li> {@link #ACTION_SEND}
482 *     <li> {@link #ACTION_SENDTO}
483 *     <li> {@link #ACTION_ANSWER}
484 *     <li> {@link #ACTION_INSERT}
485 *     <li> {@link #ACTION_DELETE}
486 *     <li> {@link #ACTION_RUN}
487 *     <li> {@link #ACTION_SYNC}
488 *     <li> {@link #ACTION_PICK_ACTIVITY}
489 *     <li> {@link #ACTION_SEARCH}
490 *     <li> {@link #ACTION_WEB_SEARCH}
491 *     <li> {@link #ACTION_FACTORY_TEST}
492 * </ul>
493 *
494 * <h3>Standard Broadcast Actions</h3>
495 *
496 * <p>These are the current standard actions that Intent defines for receiving
497 * broadcasts (usually through {@link Context#registerReceiver} or a
498 * &lt;receiver&gt; tag in a manifest).
499 *
500 * <ul>
501 *     <li> {@link #ACTION_TIME_TICK}
502 *     <li> {@link #ACTION_TIME_CHANGED}
503 *     <li> {@link #ACTION_TIMEZONE_CHANGED}
504 *     <li> {@link #ACTION_BOOT_COMPLETED}
505 *     <li> {@link #ACTION_PACKAGE_ADDED}
506 *     <li> {@link #ACTION_PACKAGE_CHANGED}
507 *     <li> {@link #ACTION_PACKAGE_REMOVED}
508 *     <li> {@link #ACTION_PACKAGE_RESTARTED}
509 *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
510 *     <li> {@link #ACTION_UID_REMOVED}
511 *     <li> {@link #ACTION_BATTERY_CHANGED}
512 *     <li> {@link #ACTION_POWER_CONNECTED}
513 *     <li> {@link #ACTION_POWER_DISCONNECTED}
514 *     <li> {@link #ACTION_SHUTDOWN}
515 * </ul>
516 *
517 * <h3>Standard Categories</h3>
518 *
519 * <p>These are the current standard categories that can be used to further
520 * clarify an Intent via {@link #addCategory}.
521 *
522 * <ul>
523 *     <li> {@link #CATEGORY_DEFAULT}
524 *     <li> {@link #CATEGORY_BROWSABLE}
525 *     <li> {@link #CATEGORY_TAB}
526 *     <li> {@link #CATEGORY_ALTERNATIVE}
527 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
528 *     <li> {@link #CATEGORY_LAUNCHER}
529 *     <li> {@link #CATEGORY_INFO}
530 *     <li> {@link #CATEGORY_HOME}
531 *     <li> {@link #CATEGORY_PREFERENCE}
532 *     <li> {@link #CATEGORY_TEST}
533 *     <li> {@link #CATEGORY_CAR_DOCK}
534 *     <li> {@link #CATEGORY_DESK_DOCK}
535 * </ul>
536 *
537 * <h3>Standard Extra Data</h3>
538 *
539 * <p>These are the current standard fields that can be used as extra data via
540 * {@link #putExtra}.
541 *
542 * <ul>
543 *     <li> {@link #EXTRA_ALARM_COUNT}
544 *     <li> {@link #EXTRA_BCC}
545 *     <li> {@link #EXTRA_CC}
546 *     <li> {@link #EXTRA_CHANGED_COMPONENT_NAME}
547 *     <li> {@link #EXTRA_DATA_REMOVED}
548 *     <li> {@link #EXTRA_DOCK_STATE}
549 *     <li> {@link #EXTRA_DOCK_STATE_CAR}
550 *     <li> {@link #EXTRA_DOCK_STATE_DESK}
551 *     <li> {@link #EXTRA_DOCK_STATE_UNDOCKED}
552 *     <li> {@link #EXTRA_DONT_KILL_APP}
553 *     <li> {@link #EXTRA_EMAIL}
554 *     <li> {@link #EXTRA_INITIAL_INTENTS}
555 *     <li> {@link #EXTRA_INTENT}
556 *     <li> {@link #EXTRA_KEY_EVENT}
557 *     <li> {@link #EXTRA_PHONE_NUMBER}
558 *     <li> {@link #EXTRA_REMOTE_INTENT_TOKEN}
559 *     <li> {@link #EXTRA_REPLACING}
560 *     <li> {@link #EXTRA_SHORTCUT_ICON}
561 *     <li> {@link #EXTRA_SHORTCUT_ICON_RESOURCE}
562 *     <li> {@link #EXTRA_SHORTCUT_INTENT}
563 *     <li> {@link #EXTRA_STREAM}
564 *     <li> {@link #EXTRA_SHORTCUT_NAME}
565 *     <li> {@link #EXTRA_SUBJECT}
566 *     <li> {@link #EXTRA_TEMPLATE}
567 *     <li> {@link #EXTRA_TEXT}
568 *     <li> {@link #EXTRA_TITLE}
569 *     <li> {@link #EXTRA_UID}
570 * </ul>
571 *
572 * <h3>Flags</h3>
573 *
574 * <p>These are the possible flags that can be used in the Intent via
575 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
576 * of all possible flags.
577 */
578public class Intent implements Parcelable, Cloneable {
579    // ---------------------------------------------------------------------
580    // ---------------------------------------------------------------------
581    // Standard intent activity actions (see action variable).
582
583    /**
584     *  Activity Action: Start as a main entry point, does not expect to
585     *  receive data.
586     *  <p>Input: nothing
587     *  <p>Output: nothing
588     */
589    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
590    public static final String ACTION_MAIN = "android.intent.action.MAIN";
591
592    /**
593     * Activity Action: Display the data to the user.  This is the most common
594     * action performed on data -- it is the generic action you can use on
595     * a piece of data to get the most reasonable thing to occur.  For example,
596     * when used on a contacts entry it will view the entry; when used on a
597     * mailto: URI it will bring up a compose window filled with the information
598     * supplied by the URI; when used with a tel: URI it will invoke the
599     * dialer.
600     * <p>Input: {@link #getData} is URI from which to retrieve data.
601     * <p>Output: nothing.
602     */
603    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
604    public static final String ACTION_VIEW = "android.intent.action.VIEW";
605
606    /**
607     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
608     * performed on a piece of data.
609     */
610    public static final String ACTION_DEFAULT = ACTION_VIEW;
611
612    /**
613     * Used to indicate that some piece of data should be attached to some other
614     * place.  For example, image data could be attached to a contact.  It is up
615     * to the recipient to decide where the data should be attached; the intent
616     * does not specify the ultimate destination.
617     * <p>Input: {@link #getData} is URI of data to be attached.
618     * <p>Output: nothing.
619     */
620    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
621    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
622
623    /**
624     * Activity Action: Provide explicit editable access to the given data.
625     * <p>Input: {@link #getData} is URI of data to be edited.
626     * <p>Output: nothing.
627     */
628    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
629    public static final String ACTION_EDIT = "android.intent.action.EDIT";
630
631    /**
632     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
633     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
634     * The extras can contain type specific data to pass through to the editing/creating
635     * activity.
636     * <p>Output: The URI of the item that was picked.  This must be a content:
637     * URI so that any receiver can access it.
638     */
639    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
640    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
641
642    /**
643     * Activity Action: Pick an item from the data, returning what was selected.
644     * <p>Input: {@link #getData} is URI containing a directory of data
645     * (vnd.android.cursor.dir/*) from which to pick an item.
646     * <p>Output: The URI of the item that was picked.
647     */
648    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
649    public static final String ACTION_PICK = "android.intent.action.PICK";
650
651    /**
652     * Activity Action: Creates a shortcut.
653     * <p>Input: Nothing.</p>
654     * <p>Output: An Intent representing the shortcut. The intent must contain three
655     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
656     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
657     * (value: ShortcutIconResource).</p>
658     *
659     * @see #EXTRA_SHORTCUT_INTENT
660     * @see #EXTRA_SHORTCUT_NAME
661     * @see #EXTRA_SHORTCUT_ICON
662     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
663     * @see android.content.Intent.ShortcutIconResource
664     */
665    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
666    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
667
668    /**
669     * The name of the extra used to define the Intent of a shortcut.
670     *
671     * @see #ACTION_CREATE_SHORTCUT
672     */
673    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
674    /**
675     * The name of the extra used to define the name of a shortcut.
676     *
677     * @see #ACTION_CREATE_SHORTCUT
678     */
679    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
680    /**
681     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
682     *
683     * @see #ACTION_CREATE_SHORTCUT
684     */
685    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
686    /**
687     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
688     *
689     * @see #ACTION_CREATE_SHORTCUT
690     * @see android.content.Intent.ShortcutIconResource
691     */
692    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
693            "android.intent.extra.shortcut.ICON_RESOURCE";
694
695    /**
696     * Represents a shortcut/live folder icon resource.
697     *
698     * @see Intent#ACTION_CREATE_SHORTCUT
699     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
700     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
701     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
702     */
703    public static class ShortcutIconResource implements Parcelable {
704        /**
705         * The package name of the application containing the icon.
706         */
707        public String packageName;
708
709        /**
710         * The resource name of the icon, including package, name and type.
711         */
712        public String resourceName;
713
714        /**
715         * Creates a new ShortcutIconResource for the specified context and resource
716         * identifier.
717         *
718         * @param context The context of the application.
719         * @param resourceId The resource idenfitier for the icon.
720         * @return A new ShortcutIconResource with the specified's context package name
721         *         and icon resource idenfitier.
722         */
723        public static ShortcutIconResource fromContext(Context context, int resourceId) {
724            ShortcutIconResource icon = new ShortcutIconResource();
725            icon.packageName = context.getPackageName();
726            icon.resourceName = context.getResources().getResourceName(resourceId);
727            return icon;
728        }
729
730        /**
731         * Used to read a ShortcutIconResource from a Parcel.
732         */
733        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
734            new Parcelable.Creator<ShortcutIconResource>() {
735
736                public ShortcutIconResource createFromParcel(Parcel source) {
737                    ShortcutIconResource icon = new ShortcutIconResource();
738                    icon.packageName = source.readString();
739                    icon.resourceName = source.readString();
740                    return icon;
741                }
742
743                public ShortcutIconResource[] newArray(int size) {
744                    return new ShortcutIconResource[size];
745                }
746            };
747
748        /**
749         * No special parcel contents.
750         */
751        public int describeContents() {
752            return 0;
753        }
754
755        public void writeToParcel(Parcel dest, int flags) {
756            dest.writeString(packageName);
757            dest.writeString(resourceName);
758        }
759
760        @Override
761        public String toString() {
762            return resourceName;
763        }
764    }
765
766    /**
767     * Activity Action: Display an activity chooser, allowing the user to pick
768     * what they want to before proceeding.  This can be used as an alternative
769     * to the standard activity picker that is displayed by the system when
770     * you try to start an activity with multiple possible matches, with these
771     * differences in behavior:
772     * <ul>
773     * <li>You can specify the title that will appear in the activity chooser.
774     * <li>The user does not have the option to make one of the matching
775     * activities a preferred activity, and all possible activities will
776     * always be shown even if one of them is currently marked as the
777     * preferred activity.
778     * </ul>
779     * <p>
780     * This action should be used when the user will naturally expect to
781     * select an activity in order to proceed.  An example if when not to use
782     * it is when the user clicks on a "mailto:" link.  They would naturally
783     * expect to go directly to their mail app, so startActivity() should be
784     * called directly: it will
785     * either launch the current preferred app, or put up a dialog allowing the
786     * user to pick an app to use and optionally marking that as preferred.
787     * <p>
788     * In contrast, if the user is selecting a menu item to send a picture
789     * they are viewing to someone else, there are many different things they
790     * may want to do at this point: send it through e-mail, upload it to a
791     * web service, etc.  In this case the CHOOSER action should be used, to
792     * always present to the user a list of the things they can do, with a
793     * nice title given by the caller such as "Send this photo with:".
794     * <p>
795     * As a convenience, an Intent of this form can be created with the
796     * {@link #createChooser} function.
797     * <p>Input: No data should be specified.  get*Extra must have
798     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
799     * and can optionally have a {@link #EXTRA_TITLE} field containing the
800     * title text to display in the chooser.
801     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
802     */
803    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
804    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
805
806    /**
807     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
808     *
809     * @param target The Intent that the user will be selecting an activity
810     * to perform.
811     * @param title Optional title that will be displayed in the chooser.
812     * @return Return a new Intent object that you can hand to
813     * {@link Context#startActivity(Intent) Context.startActivity()} and
814     * related methods.
815     */
816    public static Intent createChooser(Intent target, CharSequence title) {
817        Intent intent = new Intent(ACTION_CHOOSER);
818        intent.putExtra(EXTRA_INTENT, target);
819        if (title != null) {
820            intent.putExtra(EXTRA_TITLE, title);
821        }
822        return intent;
823    }
824    /**
825     * Activity Action: Allow the user to select a particular kind of data and
826     * return it.  This is different than {@link #ACTION_PICK} in that here we
827     * just say what kind of data is desired, not a URI of existing data from
828     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
829     * create the data as it runs (for example taking a picture or recording a
830     * sound), let them browser over the web and download the desired data,
831     * etc.
832     * <p>
833     * There are two main ways to use this action: if you want an specific kind
834     * of data, such as a person contact, you set the MIME type to the kind of
835     * data you want and launch it with {@link Context#startActivity(Intent)}.
836     * The system will then launch the best application to select that kind
837     * of data for you.
838     * <p>
839     * You may also be interested in any of a set of types of content the user
840     * can pick.  For example, an e-mail application that wants to allow the
841     * user to add an attachment to an e-mail message can use this action to
842     * bring up a list of all of the types of content the user can attach.
843     * <p>
844     * In this case, you should wrap the GET_CONTENT intent with a chooser
845     * (through {@link #createChooser}), which will give the proper interface
846     * for the user to pick how to send your data and allow you to specify
847     * a prompt indicating what they are doing.  You will usually specify a
848     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
849     * broad range of content types the user can select from.
850     * <p>
851     * When using such a broad GET_CONTENT action, it is often desireable to
852     * only pick from data that can be represented as a stream.  This is
853     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
854     * <p>
855     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
856     * that no URI is supplied in the intent, as there are no constraints on
857     * where the returned data originally comes from.  You may also include the
858     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
859     * opened as a stream.
860     * <p>
861     * Output: The URI of the item that was picked.  This must be a content:
862     * URI so that any receiver can access it.
863     */
864    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
865    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
866    /**
867     * Activity Action: Dial a number as specified by the data.  This shows a
868     * UI with the number being dialed, allowing the user to explicitly
869     * initiate the call.
870     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
871     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
872     * number.
873     * <p>Output: nothing.
874     */
875    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
876    public static final String ACTION_DIAL = "android.intent.action.DIAL";
877    /**
878     * Activity Action: Perform a call to someone specified by the data.
879     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
880     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
881     * number.
882     * <p>Output: nothing.
883     *
884     * <p>Note: there will be restrictions on which applications can initiate a
885     * call; most applications should use the {@link #ACTION_DIAL}.
886     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
887     * numbers.  Applications can <strong>dial</strong> emergency numbers using
888     * {@link #ACTION_DIAL}, however.
889     */
890    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
891    public static final String ACTION_CALL = "android.intent.action.CALL";
892    /**
893     * Activity Action: Perform a call to an emergency number specified by the
894     * data.
895     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
896     * tel: URI of an explicit phone number.
897     * <p>Output: nothing.
898     * @hide
899     */
900    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
901    /**
902     * Activity action: Perform a call to any number (emergency or not)
903     * specified by the data.
904     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
905     * tel: URI of an explicit phone number.
906     * <p>Output: nothing.
907     * @hide
908     */
909    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
910    /**
911     * Activity Action: Send a message to someone specified by the data.
912     * <p>Input: {@link #getData} is URI describing the target.
913     * <p>Output: nothing.
914     */
915    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
916    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
917    /**
918     * Activity Action: Deliver some data to someone else.  Who the data is
919     * being delivered to is not specified; it is up to the receiver of this
920     * action to ask the user where the data should be sent.
921     * <p>
922     * When launching a SEND intent, you should usually wrap it in a chooser
923     * (through {@link #createChooser}), which will give the proper interface
924     * for the user to pick how to send your data and allow you to specify
925     * a prompt indicating what they are doing.
926     * <p>
927     * Input: {@link #getType} is the MIME type of the data being sent.
928     * get*Extra can have either a {@link #EXTRA_TEXT}
929     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
930     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
931     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
932     * if the MIME type is unknown (this will only allow senders that can
933     * handle generic data streams).
934     * <p>
935     * Optional standard extras, which may be interpreted by some recipients as
936     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
937     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
938     * <p>
939     * Output: nothing.
940     */
941    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
942    public static final String ACTION_SEND = "android.intent.action.SEND";
943    /**
944     * Activity Action: Deliver multiple data to someone else.
945     * <p>
946     * Like ACTION_SEND, except the data is multiple.
947     * <p>
948     * Input: {@link #getType} is the MIME type of the data being sent.
949     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
950     * #EXTRA_STREAM} field, containing the data to be sent.
951     * <p>
952     * Multiple types are supported, and receivers should handle mixed types
953     * whenever possible. The right way for the receiver to check them is to
954     * use the content resolver on each URI. The intent sender should try to
955     * put the most concrete mime type in the intent type, but it can fall
956     * back to {@literal <type>/*} or {@literal *}/* as needed.
957     * <p>
958     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
959     * be image/jpg, but if you are sending image/jpg and image/png, then the
960     * intent's type should be image/*.
961     * <p>
962     * Optional standard extras, which may be interpreted by some recipients as
963     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
964     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
965     * <p>
966     * Output: nothing.
967     */
968    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
969    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
970    /**
971     * Activity Action: Handle an incoming phone call.
972     * <p>Input: nothing.
973     * <p>Output: nothing.
974     */
975    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
976    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
977    /**
978     * Activity Action: Insert an empty item into the given container.
979     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
980     * in which to place the data.
981     * <p>Output: URI of the new data that was created.
982     */
983    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
984    public static final String ACTION_INSERT = "android.intent.action.INSERT";
985    /**
986     * Activity Action: Delete the given data from its container.
987     * <p>Input: {@link #getData} is URI of data to be deleted.
988     * <p>Output: nothing.
989     */
990    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
991    public static final String ACTION_DELETE = "android.intent.action.DELETE";
992    /**
993     * Activity Action: Run the data, whatever that means.
994     * <p>Input: ?  (Note: this is currently specific to the test harness.)
995     * <p>Output: nothing.
996     */
997    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
998    public static final String ACTION_RUN = "android.intent.action.RUN";
999    /**
1000     * Activity Action: Perform a data synchronization.
1001     * <p>Input: ?
1002     * <p>Output: ?
1003     */
1004    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1005    public static final String ACTION_SYNC = "android.intent.action.SYNC";
1006    /**
1007     * Activity Action: Pick an activity given an intent, returning the class
1008     * selected.
1009     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
1010     * used with {@link PackageManager#queryIntentActivities} to determine the
1011     * set of activities from which to pick.
1012     * <p>Output: Class name of the activity that was selected.
1013     */
1014    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1015    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
1016    /**
1017     * Activity Action: Perform a search.
1018     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1019     * is the text to search for.  If empty, simply
1020     * enter your search results Activity with the search UI activated.
1021     * <p>Output: nothing.
1022     */
1023    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1024    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1025    /**
1026     * Activity Action: Start the platform-defined tutorial
1027     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1028     * is the text to search for.  If empty, simply
1029     * enter your search results Activity with the search UI activated.
1030     * <p>Output: nothing.
1031     */
1032    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1033    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1034    /**
1035     * Activity Action: Perform a web search.
1036     * <p>
1037     * Input: {@link android.app.SearchManager#QUERY
1038     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1039     * a url starts with http or https, the site will be opened. If it is plain
1040     * text, Google search will be applied.
1041     * <p>
1042     * Output: nothing.
1043     */
1044    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1045    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1046    /**
1047     * Activity Action: List all available applications
1048     * <p>Input: Nothing.
1049     * <p>Output: nothing.
1050     */
1051    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1052    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1053    /**
1054     * Activity Action: Show settings for choosing wallpaper
1055     * <p>Input: Nothing.
1056     * <p>Output: Nothing.
1057     */
1058    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1059    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1060
1061    /**
1062     * Activity Action: Show activity for reporting a bug.
1063     * <p>Input: Nothing.
1064     * <p>Output: Nothing.
1065     */
1066    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1067    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1068
1069    /**
1070     *  Activity Action: Main entry point for factory tests.  Only used when
1071     *  the device is booting in factory test node.  The implementing package
1072     *  must be installed in the system image.
1073     *  <p>Input: nothing
1074     *  <p>Output: nothing
1075     */
1076    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1077
1078    /**
1079     * Activity Action: The user pressed the "call" button to go to the dialer
1080     * or other appropriate UI for placing a call.
1081     * <p>Input: Nothing.
1082     * <p>Output: Nothing.
1083     */
1084    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1085    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1086
1087    /**
1088     * Activity Action: Start Voice Command.
1089     * <p>Input: Nothing.
1090     * <p>Output: Nothing.
1091     */
1092    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1093    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1094
1095    /**
1096     * Activity Action: Start action associated with long pressing on the
1097     * search key.
1098     * <p>Input: Nothing.
1099     * <p>Output: Nothing.
1100     */
1101    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1102    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1103
1104    /**
1105     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1106     * This intent is delivered to the package which installed the application, usually
1107     * the Market.
1108     * <p>Input: No data is specified. The bug report is passed in using
1109     * an {@link #EXTRA_BUG_REPORT} field.
1110     * <p>Output: Nothing.
1111     * @hide
1112     */
1113    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1114    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1115
1116    /**
1117     * Activity Action: Show power usage information to the user.
1118     * <p>Input: Nothing.
1119     * <p>Output: Nothing.
1120     */
1121    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1122    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1123
1124    /**
1125     * Activity Action: Setup wizard to launch after a platform update.  This
1126     * activity should have a string meta-data field associated with it,
1127     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1128     * the platform for setup.  The activity will be launched only if
1129     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1130     * same value.
1131     * <p>Input: Nothing.
1132     * <p>Output: Nothing.
1133     * @hide
1134     */
1135    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1136    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1137
1138    /**
1139     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1140     * describing the last run version of the platform that was setup.
1141     * @hide
1142     */
1143    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1144
1145    // ---------------------------------------------------------------------
1146    // ---------------------------------------------------------------------
1147    // Standard intent broadcast actions (see action variable).
1148
1149    /**
1150     * Broadcast Action: Sent after the screen turns off.
1151     *
1152     * <p class="note">This is a protected intent that can only be sent
1153     * by the system.
1154     */
1155    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1156    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1157    /**
1158     * Broadcast Action: Sent after the screen turns on.
1159     *
1160     * <p class="note">This is a protected intent that can only be sent
1161     * by the system.
1162     */
1163    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1164    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1165
1166    /**
1167     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1168     * keyguard is gone).
1169     *
1170     * <p class="note">This is a protected intent that can only be sent
1171     * by the system.
1172     */
1173    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1174    public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
1175
1176    /**
1177     * Broadcast Action: The current time has changed.  Sent every
1178     * minute.  You can <em>not</em> receive this through components declared
1179     * in manifests, only by exlicitly registering for it with
1180     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1181     * Context.registerReceiver()}.
1182     *
1183     * <p class="note">This is a protected intent that can only be sent
1184     * by the system.
1185     */
1186    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1187    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1188    /**
1189     * Broadcast Action: The time was set.
1190     */
1191    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1192    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1193    /**
1194     * Broadcast Action: The date has changed.
1195     */
1196    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1197    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1198    /**
1199     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1200     * <ul>
1201     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1202     * </ul>
1203     *
1204     * <p class="note">This is a protected intent that can only be sent
1205     * by the system.
1206     */
1207    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1208    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1209    /**
1210     * Alarm Changed Action: This is broadcast when the AlarmClock
1211     * application's alarm is set or unset.  It is used by the
1212     * AlarmClock application and the StatusBar service.
1213     * @hide
1214     */
1215    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1216    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1217    /**
1218     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1219     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1220     * @hide
1221     */
1222    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1223    public static final String ACTION_SYNC_STATE_CHANGED
1224            = "android.intent.action.SYNC_STATE_CHANGED";
1225    /**
1226     * Broadcast Action: This is broadcast once, after the system has finished
1227     * booting.  It can be used to perform application-specific initialization,
1228     * such as installing alarms.  You must hold the
1229     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1230     * in order to receive this broadcast.
1231     *
1232     * <p class="note">This is a protected intent that can only be sent
1233     * by the system.
1234     */
1235    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1236    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1237    /**
1238     * Broadcast Action: This is broadcast when a user action should request a
1239     * temporary system dialog to dismiss.  Some examples of temporary system
1240     * dialogs are the notification window-shade and the recent tasks dialog.
1241     */
1242    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1243    /**
1244     * Broadcast Action: Trigger the download and eventual installation
1245     * of a package.
1246     * <p>Input: {@link #getData} is the URI of the package file to download.
1247     *
1248     * <p class="note">This is a protected intent that can only be sent
1249     * by the system.
1250     */
1251    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1252    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1253    /**
1254     * Broadcast Action: A new application package has been installed on the
1255     * device. The data contains the name of the package.  Note that the
1256     * newly installed package does <em>not</em> receive this broadcast.
1257     * <p>My include the following extras:
1258     * <ul>
1259     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1260     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1261     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1262     * </ul>
1263     *
1264     * <p class="note">This is a protected intent that can only be sent
1265     * by the system.
1266     */
1267    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1268    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1269    /**
1270     * Broadcast Action: A new version of an application package has been
1271     * installed, replacing an existing version that was previously installed.
1272     * The data contains the name of the package.
1273     * <p>My include the following extras:
1274     * <ul>
1275     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1276     * </ul>
1277     *
1278     * <p class="note">This is a protected intent that can only be sent
1279     * by the system.
1280     */
1281    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1282    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1283    /**
1284     * Broadcast Action: An existing application package has been removed from
1285     * the device.  The data contains the name of the package.  The package
1286     * that is being installed does <em>not</em> receive this Intent.
1287     * <ul>
1288     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1289     * to the package.
1290     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1291     * application -- data and code -- is being removed.
1292     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1293     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1294     * </ul>
1295     *
1296     * <p class="note">This is a protected intent that can only be sent
1297     * by the system.
1298     */
1299    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1300    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1301    /**
1302     * Broadcast Action: An existing application package has been changed (e.g.
1303     * a component has been enabled or disabled).  The data contains the name of
1304     * the package.
1305     * <ul>
1306     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1307     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
1308     * of the changed components.
1309     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
1310     * default action of restarting the application.
1311     * </ul>
1312     *
1313     * <p class="note">This is a protected intent that can only be sent
1314     * by the system.
1315     */
1316    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1317    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1318    /**
1319     * Broadcast Action: The user has restarted a package, and all of its
1320     * processes have been killed.  All runtime state
1321     * associated with it (processes, alarms, notifications, etc) should
1322     * be removed.  Note that the restarted package does <em>not</em>
1323     * receive this broadcast.
1324     * The data contains the name of the package.
1325     * <ul>
1326     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1327     * </ul>
1328     *
1329     * <p class="note">This is a protected intent that can only be sent
1330     * by the system.
1331     */
1332    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1333    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1334    /**
1335     * Broadcast Action: The user has cleared the data of a package.  This should
1336     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1337     * its persistent data is erased and this broadcast sent.
1338     * Note that the cleared package does <em>not</em>
1339     * receive this broadcast. The data contains the name of the package.
1340     * <ul>
1341     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1342     * </ul>
1343     *
1344     * <p class="note">This is a protected intent that can only be sent
1345     * by the system.
1346     */
1347    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1348    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1349    /**
1350     * Broadcast Action: A user ID has been removed from the system.  The user
1351     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1352     *
1353     * <p class="note">This is a protected intent that can only be sent
1354     * by the system.
1355     */
1356    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1357    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1358
1359    /**
1360     * Broadcast Action: Resources for a set of packages (which were
1361     * previously unavailable) are currently
1362     * available since the media on which they exist is available.
1363     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1364     * list of packages whose availability changed.
1365     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1366     * list of uids of packages whose availability changed.
1367     * Note that the
1368     * packages in this list do <em>not</em> receive this broadcast.
1369     * The specified set of packages are now available on the system.
1370     * <p>Includes the following extras:
1371     * <ul>
1372     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1373     * whose resources(were previously unavailable) are currently available.
1374     * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the
1375     * packages whose resources(were previously unavailable)
1376     * are  currently available.
1377     * </ul>
1378     *
1379     * <p class="note">This is a protected intent that can only be sent
1380     * by the system.
1381     * @hide
1382     */
1383    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1384    public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE =
1385        "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
1386
1387    /**
1388     * Broadcast Action: Resources for a set of packages are currently
1389     * unavailable since the media on which they exist is unavailable.
1390     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1391     * list of packages whose availability changed.
1392     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1393     * list of uids of packages whose availability changed.
1394     * The specified set of packages can no longer be
1395     * launched and are practically unavailable on the system.
1396     * <p>Inclues the following extras:
1397     * <ul>
1398     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1399     * whose resources are no longer available.
1400     * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages
1401     * whose resources are no longer available.
1402     * </ul>
1403     *
1404     * <p class="note">This is a protected intent that can only be sent
1405     * by the system.
1406     * @hide
1407     */
1408    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1409    public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE =
1410        "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABILE";
1411
1412    /**
1413     * Broadcast Action:  The current system wallpaper has changed.  See
1414     * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
1415     */
1416    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1417    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1418    /**
1419     * Broadcast Action: The current device {@link android.content.res.Configuration}
1420     * (orientation, locale, etc) has changed.  When such a change happens, the
1421     * UIs (view hierarchy) will need to be rebuilt based on this new
1422     * information; for the most part, applications don't need to worry about
1423     * this, because the system will take care of stopping and restarting the
1424     * application to make sure it sees the new changes.  Some system code that
1425     * can not be restarted will need to watch for this action and handle it
1426     * appropriately.
1427     *
1428     * <p class="note">
1429     * You can <em>not</em> receive this through components declared
1430     * in manifests, only by explicitly registering for it with
1431     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1432     * Context.registerReceiver()}.
1433     *
1434     * <p class="note">This is a protected intent that can only be sent
1435     * by the system.
1436     *
1437     * @see android.content.res.Configuration
1438     */
1439    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1440    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1441    /**
1442     * Broadcast Action: The current device's locale has changed.
1443     *
1444     * <p class="note">This is a protected intent that can only be sent
1445     * by the system.
1446     */
1447    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1448    public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
1449    /**
1450     * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
1451     * charging state, level, and other information about the battery.
1452     * See {@link android.os.BatteryManager} for documentation on the
1453     * contents of the Intent.
1454     *
1455     * <p class="note">
1456     * You can <em>not</em> receive this through components declared
1457     * in manifests, only by explicitly registering for it with
1458     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1459     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1460     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1461     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1462     * broadcasts that are sent and can be received through manifest
1463     * receivers.
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_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1470    /**
1471     * Broadcast Action:  Indicates low battery condition on the device.
1472     * This broadcast corresponds to the "Low battery warning" system dialog.
1473     *
1474     * <p class="note">This is a protected intent that can only be sent
1475     * by the system.
1476     */
1477    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1478    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1479    /**
1480     * Broadcast Action:  Indicates the battery is now okay after being low.
1481     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1482     * gone back up to an okay state.
1483     *
1484     * <p class="note">This is a protected intent that can only be sent
1485     * by the system.
1486     */
1487    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1488    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1489    /**
1490     * Broadcast Action:  External power has been connected to the device.
1491     * This is intended for applications that wish to register specifically to this notification.
1492     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1493     * stay active to receive this notification.  This action can be used to implement actions
1494     * that wait until power is available to trigger.
1495     *
1496     * <p class="note">This is a protected intent that can only be sent
1497     * by the system.
1498     */
1499    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1500    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1501    /**
1502     * Broadcast Action:  External power has been removed from the device.
1503     * This is intended for applications that wish to register specifically to this notification.
1504     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1505     * stay active to receive this notification.  This action can be used to implement actions
1506     * that wait until power is available to trigger.
1507     *
1508     * <p class="note">This is a protected intent that can only be sent
1509     * by the system.
1510     */
1511    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1512    public static final String ACTION_POWER_DISCONNECTED =
1513            "android.intent.action.ACTION_POWER_DISCONNECTED";
1514    /**
1515     * Broadcast Action:  Device is shutting down.
1516     * This is broadcast when the device is being shut down (completely turned
1517     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1518     * will proceed and all unsaved data lost.  Apps will not normally need
1519     * to handle this, since the foreground activity will be paused as well.
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_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1526    /**
1527     * Activity Action:  Start this activity to request system shutdown.
1528     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1529     * to request confirmation from the user before shutting down.
1530     *
1531     * <p class="note">This is a protected intent that can only be sent
1532     * by the system.
1533     *
1534     * {@hide}
1535     */
1536    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1537    /**
1538     * Broadcast Action:  A sticky broadcast that indicates low memory
1539     * condition on the device
1540     *
1541     * <p class="note">This is a protected intent that can only be sent
1542     * by the system.
1543     */
1544    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1545    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1546    /**
1547     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1548     *
1549     * <p class="note">This is a protected intent that can only be sent
1550     * by the system.
1551     */
1552    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1553    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1554    /**
1555     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1556     * and package management should be started.
1557     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1558     * notification.
1559     */
1560    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1561    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1562    /**
1563     * Broadcast Action:  The device has entered USB Mass Storage mode.
1564     * This is used mainly for the USB Settings panel.
1565     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1566     * when the SD card file system is mounted or unmounted
1567     */
1568    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1569    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1570
1571    /**
1572     * Broadcast Action:  The device has exited USB Mass Storage mode.
1573     * This is used mainly for the USB Settings panel.
1574     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1575     * when the SD card file system is mounted or unmounted
1576     */
1577    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1578    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1579
1580    /**
1581     * Broadcast Action:  External media has been removed.
1582     * The path to the mount point for the removed media is contained in the Intent.mData field.
1583     */
1584    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1585    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1586
1587    /**
1588     * Broadcast Action:  External media is present, but not mounted at its mount point.
1589     * The path to the mount point for the removed media is contained in the Intent.mData field.
1590     */
1591    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1592    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1593
1594    /**
1595     * Broadcast Action:  External media is present, and being disk-checked
1596     * The path to the mount point for the checking media is contained in the Intent.mData field.
1597     */
1598    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1599    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1600
1601    /**
1602     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1603     * The path to the mount point for the checking media is contained in the Intent.mData field.
1604     */
1605    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1606    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1607
1608    /**
1609     * Broadcast Action:  External media is present and mounted at its mount point.
1610     * The path to the mount point for the removed media is contained in the Intent.mData field.
1611     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1612     * media was mounted read only.
1613     */
1614    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1615    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1616
1617    /**
1618     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1619     * The path to the mount point for the removed media is contained in the Intent.mData field.
1620     */
1621    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1622    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1623
1624    /**
1625     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1626     * The path to the mount point for the removed media is contained in the Intent.mData field.
1627     */
1628    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1629    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1630
1631    /**
1632     * Broadcast Action:  External media is present but cannot be mounted.
1633     * The path to the mount point for the removed media is contained in the Intent.mData field.
1634     */
1635    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1636    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1637
1638   /**
1639     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1640     * Applications should close all files they have open within the mount point when they receive this intent.
1641     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1642     */
1643    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1644    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1645
1646    /**
1647     * Broadcast Action:  The media scanner has started scanning a directory.
1648     * The path to the directory being scanned is contained in the Intent.mData field.
1649     */
1650    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1651    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1652
1653   /**
1654     * Broadcast Action:  The media scanner has finished scanning a directory.
1655     * The path to the scanned directory is contained in the Intent.mData field.
1656     */
1657    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1658    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1659
1660   /**
1661     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1662     * The path to the file is contained in the Intent.mData field.
1663     */
1664    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1665    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1666
1667   /**
1668     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1669     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1670     * caused the broadcast.
1671     */
1672    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1673    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1674
1675    /**
1676     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1677     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1678     * caused the broadcast.
1679     */
1680    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1681    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1682
1683    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1684    // location; they are not general-purpose actions.
1685
1686    /**
1687     * Broadcast Action: An GTalk connection has been established.
1688     */
1689    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1690    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1691            "android.intent.action.GTALK_CONNECTED";
1692
1693    /**
1694     * Broadcast Action: An GTalk connection has been disconnected.
1695     */
1696    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1697    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1698            "android.intent.action.GTALK_DISCONNECTED";
1699
1700    /**
1701     * Broadcast Action: An input method has been changed.
1702     */
1703    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1704    public static final String ACTION_INPUT_METHOD_CHANGED =
1705            "android.intent.action.INPUT_METHOD_CHANGED";
1706
1707    /**
1708     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1709     * more radios have been turned off or on. The intent will have the following extra value:</p>
1710     * <ul>
1711     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1712     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1713     *   turned off</li>
1714     * </ul>
1715     *
1716     * <p class="note">This is a protected intent that can only be sent
1717     * by the system.
1718     */
1719    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1720    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1721
1722    /**
1723     * Broadcast Action: Some content providers have parts of their namespace
1724     * where they publish new events or items that the user may be especially
1725     * interested in. For these things, they may broadcast this action when the
1726     * set of interesting items change.
1727     *
1728     * For example, GmailProvider sends this notification when the set of unread
1729     * mail in the inbox changes.
1730     *
1731     * <p>The data of the intent identifies which part of which provider
1732     * changed. When queried through the content resolver, the data URI will
1733     * return the data set in question.
1734     *
1735     * <p>The intent will have the following extra values:
1736     * <ul>
1737     *   <li><em>count</em> - The number of items in the data set. This is the
1738     *       same as the number of items in the cursor returned by querying the
1739     *       data URI. </li>
1740     * </ul>
1741     *
1742     * This intent will be sent at boot (if the count is non-zero) and when the
1743     * data set changes. It is possible for the data set to change without the
1744     * count changing (for example, if a new unread message arrives in the same
1745     * sync operation in which a message is archived). The phone should still
1746     * ring/vibrate/etc as normal in this case.
1747     */
1748    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1749    public static final String ACTION_PROVIDER_CHANGED =
1750            "android.intent.action.PROVIDER_CHANGED";
1751
1752    /**
1753     * Broadcast Action: Wired Headset plugged in or unplugged.
1754     *
1755     * <p>The intent will have the following extra values:
1756     * <ul>
1757     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1758     *   <li><em>name</em> - Headset type, human readable string </li>
1759     *   <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
1760     * </ul>
1761     * </ul>
1762     */
1763    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1764    public static final String ACTION_HEADSET_PLUG =
1765            "android.intent.action.HEADSET_PLUG";
1766
1767    /**
1768     * Broadcast Action: An outgoing call is about to be placed.
1769     *
1770     * <p>The Intent will have the following extra value:
1771     * <ul>
1772     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1773     *       the phone number originally intended to be dialed.</li>
1774     * </ul>
1775     * <p>Once the broadcast is finished, the resultData is used as the actual
1776     * number to call.  If  <code>null</code>, no call will be placed.</p>
1777     * <p>It is perfectly acceptable for multiple receivers to process the
1778     * outgoing call in turn: for example, a parental control application
1779     * might verify that the user is authorized to place the call at that
1780     * time, then a number-rewriting application might add an area code if
1781     * one was not specified.</p>
1782     * <p>For consistency, any receiver whose purpose is to prohibit phone
1783     * calls should have a priority of 0, to ensure it will see the final
1784     * phone number to be dialed.
1785     * Any receiver whose purpose is to rewrite phone numbers to be called
1786     * should have a positive priority.
1787     * Negative priorities are reserved for the system for this broadcast;
1788     * using them may cause problems.</p>
1789     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1790     * abort the broadcast.</p>
1791     * <p>Emergency calls cannot be intercepted using this mechanism, and
1792     * other calls cannot be modified to call emergency numbers using this
1793     * mechanism.
1794     * <p>You must hold the
1795     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1796     * permission to receive this Intent.</p>
1797     *
1798     * <p class="note">This is a protected intent that can only be sent
1799     * by the system.
1800     */
1801    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1802    public static final String ACTION_NEW_OUTGOING_CALL =
1803            "android.intent.action.NEW_OUTGOING_CALL";
1804
1805    /**
1806     * Broadcast Action: Have the device reboot.  This is only for use by
1807     * system code.
1808     *
1809     * <p class="note">This is a protected intent that can only be sent
1810     * by the system.
1811     */
1812    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1813    public static final String ACTION_REBOOT =
1814            "android.intent.action.REBOOT";
1815
1816    /**
1817     * Broadcast Action:  A sticky broadcast indicating the phone was docked
1818     * or undocked.  Includes the extra
1819     * field {@link #EXTRA_DOCK_STATE}, containing the current dock state. It also
1820     * includes the boolean extra field {@link #EXTRA_CAR_MODE_ENABLED}, indicating
1821     * the state of the car mode.
1822     * This is intended for monitoring the current dock state.
1823     * To launch an activity from a dock state change, use {@link #CATEGORY_CAR_DOCK}
1824     * or {@link #CATEGORY_DESK_DOCK} instead.
1825     */
1826    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1827    public static final String ACTION_DOCK_EVENT =
1828            "android.intent.action.DOCK_EVENT";
1829
1830    /**
1831     * Broadcast Action: a remote intent is to be broadcasted.
1832     *
1833     * A remote intent is used for remote RPC between devices. The remote intent
1834     * is serialized and sent from one device to another device. The receiving
1835     * device parses the remote intent and broadcasts it. Note that anyone can
1836     * broadcast a remote intent. However, if the intent receiver of the remote intent
1837     * does not trust intent broadcasts from arbitrary intent senders, it should require
1838     * the sender to hold certain permissions so only trusted sender's broadcast will be
1839     * let through.
1840     * @hide
1841     */
1842    public static final String ACTION_REMOTE_INTENT =
1843            "android.intent.action.REMOTE_INTENT";
1844
1845    /**
1846     * Broadcast Action: hook for permforming cleanup after a system update.
1847     *
1848     * The broadcast is sent when the system is booting, before the
1849     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1850     * image.  A receiver for this should do its work and then disable itself
1851     * so that it does not get run again at the next boot.
1852     * @hide
1853     */
1854    public static final String ACTION_PRE_BOOT_COMPLETED =
1855            "android.intent.action.PRE_BOOT_COMPLETED";
1856
1857    // ---------------------------------------------------------------------
1858    // ---------------------------------------------------------------------
1859    // Standard intent categories (see addCategory()).
1860
1861    /**
1862     * Set if the activity should be an option for the default action
1863     * (center press) to perform on a piece of data.  Setting this will
1864     * hide from the user any activities without it set when performing an
1865     * action on some data.  Note that this is normal -not- set in the
1866     * Intent when initiating an action -- it is for use in intent filters
1867     * specified in packages.
1868     */
1869    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1870    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1871    /**
1872     * Activities that can be safely invoked from a browser must support this
1873     * category.  For example, if the user is viewing a web page or an e-mail
1874     * and clicks on a link in the text, the Intent generated execute that
1875     * link will require the BROWSABLE category, so that only activities
1876     * supporting this category will be considered as possible actions.  By
1877     * supporting this category, you are promising that there is nothing
1878     * damaging (without user intervention) that can happen by invoking any
1879     * matching Intent.
1880     */
1881    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1882    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1883    /**
1884     * Set if the activity should be considered as an alternative action to
1885     * the data the user is currently viewing.  See also
1886     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1887     * applies to the selection in a list of items.
1888     *
1889     * <p>Supporting this category means that you would like your activity to be
1890     * displayed in the set of alternative things the user can do, usually as
1891     * part of the current activity's options menu.  You will usually want to
1892     * include a specific label in the &lt;intent-filter&gt; of this action
1893     * describing to the user what it does.
1894     *
1895     * <p>The action of IntentFilter with this category is important in that it
1896     * describes the specific action the target will perform.  This generally
1897     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1898     * a specific name such as "com.android.camera.action.CROP.  Only one
1899     * alternative of any particular action will be shown to the user, so using
1900     * a specific action like this makes sure that your alternative will be
1901     * displayed while also allowing other applications to provide their own
1902     * overrides of that particular action.
1903     */
1904    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1905    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1906    /**
1907     * Set if the activity should be considered as an alternative selection
1908     * action to the data the user has currently selected.  This is like
1909     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1910     * of items from which the user can select, giving them alternatives to the
1911     * default action that will be performed on it.
1912     */
1913    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1914    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1915    /**
1916     * Intended to be used as a tab inside of an containing TabActivity.
1917     */
1918    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1919    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1920    /**
1921     * Should be displayed in the top-level launcher.
1922     */
1923    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1924    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1925    /**
1926     * Provides information about the package it is in; typically used if
1927     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1928     * a front-door to the user without having to be shown in the all apps list.
1929     */
1930    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1931    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1932    /**
1933     * This is the home activity, that is the first activity that is displayed
1934     * when the device boots.
1935     */
1936    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1937    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1938    /**
1939     * This activity is a preference panel.
1940     */
1941    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1942    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1943    /**
1944     * This activity is a development preference panel.
1945     */
1946    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1947    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1948    /**
1949     * Capable of running inside a parent activity container.
1950     */
1951    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1952    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1953    /**
1954     * This activity may be exercised by the monkey or other automated test tools.
1955     */
1956    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1957    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1958    /**
1959     * To be used as a test (not part of the normal user experience).
1960     */
1961    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1962    /**
1963     * To be used as a unit test (run through the Test Harness).
1964     */
1965    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1966    /**
1967     * To be used as an sample code example (not part of the normal user
1968     * experience).
1969     */
1970    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1971    /**
1972     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1973     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1974     * when queried, though it is allowable for those columns to be blank.
1975     */
1976    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1977    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1978
1979    /**
1980     * To be used as code under test for framework instrumentation tests.
1981     */
1982    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1983            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1984    /**
1985     * An activity to run when device is inserted into a car dock.
1986     * Used with {@link #ACTION_MAIN} to launch an activity.
1987     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1988     */
1989    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1990    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
1991    /**
1992     * An activity to run when device is inserted into a car dock.
1993     * Used with {@link #ACTION_MAIN} to launch an activity.
1994     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1995     */
1996    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1997    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
1998
1999    // ---------------------------------------------------------------------
2000    // ---------------------------------------------------------------------
2001    // Standard extra data keys.
2002
2003    /**
2004     * The initial data to place in a newly created record.  Use with
2005     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
2006     * fields as would be given to the underlying ContentProvider.insert()
2007     * call.
2008     */
2009    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
2010
2011    /**
2012     * A constant CharSequence that is associated with the Intent, used with
2013     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
2014     * this may be a styled CharSequence, so you must use
2015     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
2016     * retrieve it.
2017     */
2018    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
2019
2020    /**
2021     * A content: URI holding a stream of data associated with the Intent,
2022     * used with {@link #ACTION_SEND} to supply the data being sent.
2023     */
2024    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
2025
2026    /**
2027     * A String[] holding e-mail addresses that should be delivered to.
2028     */
2029    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
2030
2031    /**
2032     * A String[] holding e-mail addresses that should be carbon copied.
2033     */
2034    public static final String EXTRA_CC       = "android.intent.extra.CC";
2035
2036    /**
2037     * A String[] holding e-mail addresses that should be blind carbon copied.
2038     */
2039    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
2040
2041    /**
2042     * A constant string holding the desired subject line of a message.
2043     */
2044    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
2045
2046    /**
2047     * An Intent describing the choices you would like shown with
2048     * {@link #ACTION_PICK_ACTIVITY}.
2049     */
2050    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
2051
2052    /**
2053     * A CharSequence dialog title to provide to the user when used with a
2054     * {@link #ACTION_CHOOSER}.
2055     */
2056    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
2057
2058    /**
2059     * A Parcelable[] of {@link Intent} or
2060     * {@link android.content.pm.LabeledIntent} objects as set with
2061     * {@link #putExtra(String, Parcelable[])} of additional activities to place
2062     * a the front of the list of choices, when shown to the user with a
2063     * {@link #ACTION_CHOOSER}.
2064     */
2065    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
2066
2067    /**
2068     * A {@link android.view.KeyEvent} object containing the event that
2069     * triggered the creation of the Intent it is in.
2070     */
2071    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
2072
2073    /**
2074     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
2075     * before shutting down.
2076     *
2077     * {@hide}
2078     */
2079    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
2080
2081    /**
2082     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2083     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
2084     * of restarting the application.
2085     */
2086    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
2087
2088    /**
2089     * A String holding the phone number originally entered in
2090     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
2091     * number to call in a {@link android.content.Intent#ACTION_CALL}.
2092     */
2093    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
2094    /**
2095     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
2096     * intents to supply the uid the package had been assigned.  Also an optional
2097     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2098     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2099     * purpose.
2100     */
2101    public static final String EXTRA_UID = "android.intent.extra.UID";
2102
2103    /**
2104     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2105     * intents to indicate whether this represents a full uninstall (removing
2106     * both the code and its data) or a partial uninstall (leaving its data,
2107     * implying that this is an update).
2108     */
2109    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2110
2111    /**
2112     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2113     * intents to indicate that this is a replacement of the package, so this
2114     * broadcast will immediately be followed by an add broadcast for a
2115     * different version of the same package.
2116     */
2117    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2118
2119    /**
2120     * Used as an int extra field in {@link android.app.AlarmManager} intents
2121     * to tell the application being invoked how many pending alarms are being
2122     * delievered with the intent.  For one-shot alarms this will always be 1.
2123     * For recurring alarms, this might be greater than 1 if the device was
2124     * asleep or powered off at the time an earlier alarm would have been
2125     * delivered.
2126     */
2127    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2128
2129    /**
2130     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2131     * intents to request the dock state.  Possible values are
2132     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2133     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2134     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
2135     */
2136    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2137
2138    /**
2139     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2140     * to represent that the phone is not in any dock.
2141     */
2142    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2143
2144    /**
2145     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2146     * to represent that the phone is in a desk dock.
2147     */
2148    public static final int EXTRA_DOCK_STATE_DESK = 1;
2149
2150    /**
2151     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2152     * to represent that the phone is in a car dock.
2153     */
2154    public static final int EXTRA_DOCK_STATE_CAR = 2;
2155
2156    /**
2157     * Used as an boolean extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2158     * intents to indicate that the car mode is enabled or not.
2159     */
2160    public static final String EXTRA_CAR_MODE_ENABLED = "android.intent.extra.CAR_MODE_ENABLED";
2161
2162    /**
2163     * Boolean that can be supplied as meta-data with a dock activity, to
2164     * indicate that the dock should take over the home key when it is active.
2165     */
2166    public static final String METADATA_DOCK_HOME = "android.dock_home";
2167
2168    /**
2169     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2170     * the bug report.
2171     *
2172     * @hide
2173     */
2174    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2175
2176    /**
2177     * Used as a string extra field when sending an intent to PackageInstaller to install a
2178     * package. Specifies the installer package name; this package will receive the
2179     * {@link #ACTION_APP_ERROR} intent.
2180     *
2181     * @hide
2182     */
2183    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2184            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2185
2186    /**
2187     * Used in the extra field in the remote intent. It's astring token passed with the
2188     * remote intent.
2189     */
2190    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2191            "android.intent.extra.remote_intent_token";
2192
2193    /**
2194     * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
2195     * will contain only the first name in the list.
2196     */
2197    @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
2198            "android.intent.extra.changed_component_name";
2199
2200    /**
2201     * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED},
2202     * and contains a string array of all of the components that have changed.
2203     */
2204    public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
2205            "android.intent.extra.changed_component_name_list";
2206
2207    /**
2208     * This field is part of
2209     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
2210     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
2211     * and contains a string array of all of the components that have changed.
2212     * @hide
2213     */
2214    public static final String EXTRA_CHANGED_PACKAGE_LIST =
2215            "android.intent.extra.changed_package_list";
2216
2217    /**
2218     * This field is part of
2219     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
2220     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
2221     * and contains an integer array of uids of all of the components
2222     * that have changed.
2223     * @hide
2224     */
2225    public static final String EXTRA_CHANGED_UID_LIST =
2226            "android.intent.extra.changed_uid_list";
2227
2228    /**
2229     * @hide
2230     * Magic extra system code can use when binding, to give a label for
2231     * who it is that has bound to a service.  This is an integer giving
2232     * a framework string resource that can be displayed to the user.
2233     */
2234    public static final String EXTRA_CLIENT_LABEL =
2235            "android.intent.extra.client_label";
2236
2237    /**
2238     * @hide
2239     * Magic extra system code can use when binding, to give a PendingIntent object
2240     * that can be launched for the user to disable the system's use of this
2241     * service.
2242     */
2243    public static final String EXTRA_CLIENT_INTENT =
2244            "android.intent.extra.client_intent";
2245
2246    // ---------------------------------------------------------------------
2247    // ---------------------------------------------------------------------
2248    // Intent flags (see mFlags variable).
2249
2250    /**
2251     * If set, the recipient of this Intent will be granted permission to
2252     * perform read operations on the Uri in the Intent's data.
2253     */
2254    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2255    /**
2256     * If set, the recipient of this Intent will be granted permission to
2257     * perform write operations on the Uri in the Intent's data.
2258     */
2259    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2260    /**
2261     * Can be set by the caller to indicate that this Intent is coming from
2262     * a background operation, not from direct user interaction.
2263     */
2264    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2265    /**
2266     * A flag you can enable for debugging: when set, log messages will be
2267     * printed during the resolution of this intent to show you what has
2268     * been found to create the final resolved list.
2269     */
2270    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2271
2272    /**
2273     * If set, the new activity is not kept in the history stack.  As soon as
2274     * the user navigates away from it, the activity is finished.  This may also
2275     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2276     * noHistory} attribute.
2277     */
2278    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2279    /**
2280     * If set, the activity will not be launched if it is already running
2281     * at the top of the history stack.
2282     */
2283    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2284    /**
2285     * If set, this activity will become the start of a new task on this
2286     * history stack.  A task (from the activity that started it to the
2287     * next task activity) defines an atomic group of activities that the
2288     * user can move to.  Tasks can be moved to the foreground and background;
2289     * all of the activities inside of a particular task always remain in
2290     * the same order.  See
2291     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2292     * Activities and Tasks</a> for more details on tasks.
2293     *
2294     * <p>This flag is generally used by activities that want
2295     * to present a "launcher" style behavior: they give the user a list of
2296     * separate things that can be done, which otherwise run completely
2297     * independently of the activity launching them.
2298     *
2299     * <p>When using this flag, if a task is already running for the activity
2300     * you are now starting, then a new activity will not be started; instead,
2301     * the current task will simply be brought to the front of the screen with
2302     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2303     * to disable this behavior.
2304     *
2305     * <p>This flag can not be used when the caller is requesting a result from
2306     * the activity being launched.
2307     */
2308    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2309    /**
2310     * <strong>Do not use this flag unless you are implementing your own
2311     * top-level application launcher.</strong>  Used in conjunction with
2312     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2313     * behavior of bringing an existing task to the foreground.  When set,
2314     * a new task is <em>always</em> started to host the Activity for the
2315     * Intent, regardless of whether there is already an existing task running
2316     * the same thing.
2317     *
2318     * <p><strong>Because the default system does not include graphical task management,
2319     * you should not use this flag unless you provide some way for a user to
2320     * return back to the tasks you have launched.</strong>
2321     *
2322     * <p>This flag is ignored if
2323     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2324     *
2325     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2326     * Activities and Tasks</a> for more details on tasks.
2327     */
2328    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2329    /**
2330     * If set, and the activity being launched is already running in the
2331     * current task, then instead of launching a new instance of that activity,
2332     * all of the other activities on top of it will be closed and this Intent
2333     * will be delivered to the (now on top) old activity as a new Intent.
2334     *
2335     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2336     * If D calls startActivity() with an Intent that resolves to the component
2337     * of activity B, then C and D will be finished and B receive the given
2338     * Intent, resulting in the stack now being: A, B.
2339     *
2340     * <p>The currently running instance of activity B in the above example will
2341     * either receive the new intent you are starting here in its
2342     * onNewIntent() method, or be itself finished and restarted with the
2343     * new intent.  If it has declared its launch mode to be "multiple" (the
2344     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2345     * the same intent, then it will be finished and re-created; for all other
2346     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2347     * Intent will be delivered to the current instance's onNewIntent().
2348     *
2349     * <p>This launch mode can also be used to good effect in conjunction with
2350     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2351     * of a task, it will bring any currently running instance of that task
2352     * to the foreground, and then clear it to its root state.  This is
2353     * especially useful, for example, when launching an activity from the
2354     * notification manager.
2355     *
2356     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2357     * Activities and Tasks</a> for more details on tasks.
2358     */
2359    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2360    /**
2361     * If set and this intent is being used to launch a new activity from an
2362     * existing one, then the reply target of the existing activity will be
2363     * transfered to the new activity.  This way the new activity can call
2364     * {@link android.app.Activity#setResult} and have that result sent back to
2365     * the reply target of the original activity.
2366     */
2367    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2368    /**
2369     * If set and this intent is being used to launch a new activity from an
2370     * existing one, the current activity will not be counted as the top
2371     * activity for deciding whether the new intent should be delivered to
2372     * the top instead of starting a new one.  The previous activity will
2373     * be used as the top, with the assumption being that the current activity
2374     * will finish itself immediately.
2375     */
2376    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2377    /**
2378     * If set, the new activity is not kept in the list of recently launched
2379     * activities.
2380     */
2381    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2382    /**
2383     * This flag is not normally set by application code, but set for you by
2384     * the system as described in the
2385     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2386     * launchMode} documentation for the singleTask mode.
2387     */
2388    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2389    /**
2390     * If set, and this activity is either being started in a new task or
2391     * bringing to the top an existing task, then it will be launched as
2392     * the front door of the task.  This will result in the application of
2393     * any affinities needed to have that task in the proper state (either
2394     * moving activities to or from it), or simply resetting that task to
2395     * its initial state if needed.
2396     */
2397    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2398    /**
2399     * This flag is not normally set by application code, but set for you by
2400     * the system if this activity is being launched from history
2401     * (longpress home key).
2402     */
2403    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2404    /**
2405     * If set, this marks a point in the task's activity stack that should
2406     * be cleared when the task is reset.  That is, the next time the task
2407     * is brought to the foreground with
2408     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2409     * the user re-launching it from home), this activity and all on top of
2410     * it will be finished so that the user does not return to them, but
2411     * instead returns to whatever activity preceeded it.
2412     *
2413     * <p>This is useful for cases where you have a logical break in your
2414     * application.  For example, an e-mail application may have a command
2415     * to view an attachment, which launches an image view activity to
2416     * display it.  This activity should be part of the e-mail application's
2417     * task, since it is a part of the task the user is involved in.  However,
2418     * if the user leaves that task, and later selects the e-mail app from
2419     * home, we may like them to return to the conversation they were
2420     * viewing, not the picture attachment, since that is confusing.  By
2421     * setting this flag when launching the image viewer, that viewer and
2422     * any activities it starts will be removed the next time the user returns
2423     * to mail.
2424     */
2425    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2426    /**
2427     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2428     * callback from occurring on the current frontmost activity before it is
2429     * paused as the newly-started activity is brought to the front.
2430     *
2431     * <p>Typically, an activity can rely on that callback to indicate that an
2432     * explicit user action has caused their activity to be moved out of the
2433     * foreground. The callback marks an appropriate point in the activity's
2434     * lifecycle for it to dismiss any notifications that it intends to display
2435     * "until the user has seen them," such as a blinking LED.
2436     *
2437     * <p>If an activity is ever started via any non-user-driven events such as
2438     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2439     * Context#startActivity Context.startActivity}, ensuring that the pausing
2440     * activity does not think the user has acknowledged its notification.
2441     */
2442    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2443    /**
2444     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2445     * this flag will cause the launched activity to be brought to the front of its
2446     * task's history stack if it is already running.
2447     *
2448     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2449     * If D calls startActivity() with an Intent that resolves to the component
2450     * of activity B, then B will be brought to the front of the history stack,
2451     * with this resulting order:  A, C, D, B.
2452     *
2453     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2454     * specified.
2455     */
2456    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2457    /**
2458     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2459     * this flag will prevent the system from applying an activity transition
2460     * animation to go to the next activity state.  This doesn't mean an
2461     * animation will never run -- if another activity change happens that doesn't
2462     * specify this flag before the activity started here is displayed, then
2463     * that transition will be used.  This this flag can be put to good use
2464     * when you are going to do a series of activity operations but the
2465     * animation seen by the user shouldn't be driven by the first activity
2466     * change but rather a later one.
2467     */
2468    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
2469    /**
2470     * If set, when sending a broadcast only registered receivers will be
2471     * called -- no BroadcastReceiver components will be launched.
2472     */
2473    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2474    /**
2475     * If set, when sending a broadcast the new broadcast will replace
2476     * any existing pending broadcast that matches it.  Matching is defined
2477     * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning
2478     * true for the intents of the two broadcasts.  When a match is found,
2479     * the new broadcast (and receivers associated with it) will replace the
2480     * existing one in the pending broadcast list, remaining at the same
2481     * position in the list.
2482     *
2483     * <p>This flag is most typically used with sticky broadcasts, which
2484     * only care about delivering the most recent values of the broadcast
2485     * to their receivers.
2486     */
2487    public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
2488    /**
2489     * If set, when sending a broadcast <i>before boot has completed</i> only
2490     * registered receivers will be called -- no BroadcastReceiver components
2491     * will be launched.  Sticky intent state will be recorded properly even
2492     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2493     * is specified in the broadcast intent, this flag is unnecessary.
2494     *
2495     * <p>This flag is only for use by system sevices as a convenience to
2496     * avoid having to implement a more complex mechanism around detection
2497     * of boot completion.
2498     *
2499     * @hide
2500     */
2501    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x10000000;
2502    /**
2503     * Set when this broadcast is for a boot upgrade, a special mode that
2504     * allows the broadcast to be sent before the system is ready and launches
2505     * the app process with no providers running in it.
2506     * @hide
2507     */
2508    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x08000000;
2509
2510    /**
2511     * @hide Flags that can't be changed with PendingIntent.
2512     */
2513    public static final int IMMUTABLE_FLAGS =
2514            FLAG_GRANT_READ_URI_PERMISSION
2515            | FLAG_GRANT_WRITE_URI_PERMISSION;
2516
2517    // ---------------------------------------------------------------------
2518    // ---------------------------------------------------------------------
2519    // toUri() and parseUri() options.
2520
2521    /**
2522     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2523     * always has the "intent:" scheme.  This syntax can be used when you want
2524     * to later disambiguate between URIs that are intended to describe an
2525     * Intent vs. all others that should be treated as raw URIs.  When used
2526     * with {@link #parseUri}, any other scheme will result in a generic
2527     * VIEW action for that raw URI.
2528     */
2529    public static final int URI_INTENT_SCHEME = 1<<0;
2530
2531    // ---------------------------------------------------------------------
2532
2533    private String mAction;
2534    private Uri mData;
2535    private String mType;
2536    private String mPackage;
2537    private ComponentName mComponent;
2538    private int mFlags;
2539    private HashSet<String> mCategories;
2540    private Bundle mExtras;
2541    private Rect mSourceBounds;
2542
2543    // ---------------------------------------------------------------------
2544
2545    /**
2546     * Create an empty intent.
2547     */
2548    public Intent() {
2549    }
2550
2551    /**
2552     * Copy constructor.
2553     */
2554    public Intent(Intent o) {
2555        this.mAction = o.mAction;
2556        this.mData = o.mData;
2557        this.mType = o.mType;
2558        this.mPackage = o.mPackage;
2559        this.mComponent = o.mComponent;
2560        this.mFlags = o.mFlags;
2561        if (o.mCategories != null) {
2562            this.mCategories = new HashSet<String>(o.mCategories);
2563        }
2564        if (o.mExtras != null) {
2565            this.mExtras = new Bundle(o.mExtras);
2566        }
2567        if (o.mSourceBounds != null) {
2568            this.mSourceBounds = new Rect(o.mSourceBounds);
2569        }
2570    }
2571
2572    @Override
2573    public Object clone() {
2574        return new Intent(this);
2575    }
2576
2577    private Intent(Intent o, boolean all) {
2578        this.mAction = o.mAction;
2579        this.mData = o.mData;
2580        this.mType = o.mType;
2581        this.mPackage = o.mPackage;
2582        this.mComponent = o.mComponent;
2583        if (o.mCategories != null) {
2584            this.mCategories = new HashSet<String>(o.mCategories);
2585        }
2586    }
2587
2588    /**
2589     * Make a clone of only the parts of the Intent that are relevant for
2590     * filter matching: the action, data, type, component, and categories.
2591     */
2592    public Intent cloneFilter() {
2593        return new Intent(this, false);
2594    }
2595
2596    /**
2597     * Create an intent with a given action.  All other fields (data, type,
2598     * class) are null.  Note that the action <em>must</em> be in a
2599     * namespace because Intents are used globally in the system -- for
2600     * example the system VIEW action is android.intent.action.VIEW; an
2601     * application's custom action would be something like
2602     * com.google.app.myapp.CUSTOM_ACTION.
2603     *
2604     * @param action The Intent action, such as ACTION_VIEW.
2605     */
2606    public Intent(String action) {
2607        mAction = action;
2608    }
2609
2610    /**
2611     * Create an intent with a given action and for a given data url.  Note
2612     * that the action <em>must</em> be in a namespace because Intents are
2613     * used globally in the system -- for example the system VIEW action is
2614     * android.intent.action.VIEW; an application's custom action would be
2615     * something like com.google.app.myapp.CUSTOM_ACTION.
2616     *
2617     * <p><em>Note: scheme and host name matching in the Android framework is
2618     * case-sensitive, unlike the formal RFC.  As a result,
2619     * you should always ensure that you write your Uri with these elements
2620     * using lower case letters, and normalize any Uris you receive from
2621     * outside of Android to ensure the scheme and host is lower case.</em></p>
2622     *
2623     * @param action The Intent action, such as ACTION_VIEW.
2624     * @param uri The Intent data URI.
2625     */
2626    public Intent(String action, Uri uri) {
2627        mAction = action;
2628        mData = uri;
2629    }
2630
2631    /**
2632     * Create an intent for a specific component.  All other fields (action, data,
2633     * type, class) are null, though they can be modified later with explicit
2634     * calls.  This provides a convenient way to create an intent that is
2635     * intended to execute a hard-coded class name, rather than relying on the
2636     * system to find an appropriate class for you; see {@link #setComponent}
2637     * for more information on the repercussions of this.
2638     *
2639     * @param packageContext A Context of the application package implementing
2640     * this class.
2641     * @param cls The component class that is to be used for the intent.
2642     *
2643     * @see #setClass
2644     * @see #setComponent
2645     * @see #Intent(String, android.net.Uri , Context, Class)
2646     */
2647    public Intent(Context packageContext, Class<?> cls) {
2648        mComponent = new ComponentName(packageContext, cls);
2649    }
2650
2651    /**
2652     * Create an intent for a specific component with a specified action and data.
2653     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2654     * construct the Intent and then calling {@link #setClass} to set its
2655     * class.
2656     *
2657     * <p><em>Note: scheme and host name matching in the Android framework is
2658     * case-sensitive, unlike the formal RFC.  As a result,
2659     * you should always ensure that you write your Uri with these elements
2660     * using lower case letters, and normalize any Uris you receive from
2661     * outside of Android to ensure the scheme and host is lower case.</em></p>
2662     *
2663     * @param action The Intent action, such as ACTION_VIEW.
2664     * @param uri The Intent data URI.
2665     * @param packageContext A Context of the application package implementing
2666     * this class.
2667     * @param cls The component class that is to be used for the intent.
2668     *
2669     * @see #Intent(String, android.net.Uri)
2670     * @see #Intent(Context, Class)
2671     * @see #setClass
2672     * @see #setComponent
2673     */
2674    public Intent(String action, Uri uri,
2675            Context packageContext, Class<?> cls) {
2676        mAction = action;
2677        mData = uri;
2678        mComponent = new ComponentName(packageContext, cls);
2679    }
2680
2681    /**
2682     * Call {@link #parseUri} with 0 flags.
2683     * @deprecated Use {@link #parseUri} instead.
2684     */
2685    @Deprecated
2686    public static Intent getIntent(String uri) throws URISyntaxException {
2687        return parseUri(uri, 0);
2688    }
2689
2690    /**
2691     * Create an intent from a URI.  This URI may encode the action,
2692     * category, and other intent fields, if it was returned by
2693     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2694     * will be the entire URI and its action will be ACTION_VIEW.
2695     *
2696     * <p>The URI given here must not be relative -- that is, it must include
2697     * the scheme and full path.
2698     *
2699     * @param uri The URI to turn into an Intent.
2700     * @param flags Additional processing flags.  Either 0 or
2701     * {@link #URI_INTENT_SCHEME}.
2702     *
2703     * @return Intent The newly created Intent object.
2704     *
2705     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2706     * it bad (as parsed by the Uri class) or the Intent data within the
2707     * URI is invalid.
2708     *
2709     * @see #toUri
2710     */
2711    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2712        int i = 0;
2713        try {
2714            // Validate intent scheme for if requested.
2715            if ((flags&URI_INTENT_SCHEME) != 0) {
2716                if (!uri.startsWith("intent:")) {
2717                    Intent intent = new Intent(ACTION_VIEW);
2718                    try {
2719                        intent.setData(Uri.parse(uri));
2720                    } catch (IllegalArgumentException e) {
2721                        throw new URISyntaxException(uri, e.getMessage());
2722                    }
2723                    return intent;
2724                }
2725            }
2726
2727            // simple case
2728            i = uri.lastIndexOf("#");
2729            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2730
2731            // old format Intent URI
2732            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2733
2734            // new format
2735            Intent intent = new Intent(ACTION_VIEW);
2736
2737            // fetch data part, if present
2738            String data = i >= 0 ? uri.substring(0, i) : null;
2739            String scheme = null;
2740            i += "#Intent;".length();
2741
2742            // loop over contents of Intent, all name=value;
2743            while (!uri.startsWith("end", i)) {
2744                int eq = uri.indexOf('=', i);
2745                int semi = uri.indexOf(';', eq);
2746                String value = Uri.decode(uri.substring(eq + 1, semi));
2747
2748                // action
2749                if (uri.startsWith("action=", i)) {
2750                    intent.mAction = value;
2751                }
2752
2753                // categories
2754                else if (uri.startsWith("category=", i)) {
2755                    intent.addCategory(value);
2756                }
2757
2758                // type
2759                else if (uri.startsWith("type=", i)) {
2760                    intent.mType = value;
2761                }
2762
2763                // launch flags
2764                else if (uri.startsWith("launchFlags=", i)) {
2765                    intent.mFlags = Integer.decode(value).intValue();
2766                }
2767
2768                // package
2769                else if (uri.startsWith("package=", i)) {
2770                    intent.mPackage = value;
2771                }
2772
2773                // component
2774                else if (uri.startsWith("component=", i)) {
2775                    intent.mComponent = ComponentName.unflattenFromString(value);
2776                }
2777
2778                // scheme
2779                else if (uri.startsWith("scheme=", i)) {
2780                    scheme = value;
2781                }
2782
2783                // source bounds
2784                else if (uri.startsWith("sourceBounds=", i)) {
2785                    intent.mSourceBounds = Rect.unflattenFromString(value);
2786                }
2787
2788                // extra
2789                else {
2790                    String key = Uri.decode(uri.substring(i + 2, eq));
2791                    // create Bundle if it doesn't already exist
2792                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2793                    Bundle b = intent.mExtras;
2794                    // add EXTRA
2795                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2796                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2797                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2798                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2799                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2800                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2801                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2802                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2803                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2804                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2805                }
2806
2807                // move to the next item
2808                i = semi + 1;
2809            }
2810
2811            if (data != null) {
2812                if (data.startsWith("intent:")) {
2813                    data = data.substring(7);
2814                    if (scheme != null) {
2815                        data = scheme + ':' + data;
2816                    }
2817                }
2818
2819                if (data.length() > 0) {
2820                    try {
2821                        intent.mData = Uri.parse(data);
2822                    } catch (IllegalArgumentException e) {
2823                        throw new URISyntaxException(uri, e.getMessage());
2824                    }
2825                }
2826            }
2827
2828            return intent;
2829
2830        } catch (IndexOutOfBoundsException e) {
2831            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2832        }
2833    }
2834
2835    public static Intent getIntentOld(String uri) throws URISyntaxException {
2836        Intent intent;
2837
2838        int i = uri.lastIndexOf('#');
2839        if (i >= 0) {
2840            String action = null;
2841            final int intentFragmentStart = i;
2842            boolean isIntentFragment = false;
2843
2844            i++;
2845
2846            if (uri.regionMatches(i, "action(", 0, 7)) {
2847                isIntentFragment = true;
2848                i += 7;
2849                int j = uri.indexOf(')', i);
2850                action = uri.substring(i, j);
2851                i = j + 1;
2852            }
2853
2854            intent = new Intent(action);
2855
2856            if (uri.regionMatches(i, "categories(", 0, 11)) {
2857                isIntentFragment = true;
2858                i += 11;
2859                int j = uri.indexOf(')', i);
2860                while (i < j) {
2861                    int sep = uri.indexOf('!', i);
2862                    if (sep < 0) sep = j;
2863                    if (i < sep) {
2864                        intent.addCategory(uri.substring(i, sep));
2865                    }
2866                    i = sep + 1;
2867                }
2868                i = j + 1;
2869            }
2870
2871            if (uri.regionMatches(i, "type(", 0, 5)) {
2872                isIntentFragment = true;
2873                i += 5;
2874                int j = uri.indexOf(')', i);
2875                intent.mType = uri.substring(i, j);
2876                i = j + 1;
2877            }
2878
2879            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2880                isIntentFragment = true;
2881                i += 12;
2882                int j = uri.indexOf(')', i);
2883                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2884                i = j + 1;
2885            }
2886
2887            if (uri.regionMatches(i, "component(", 0, 10)) {
2888                isIntentFragment = true;
2889                i += 10;
2890                int j = uri.indexOf(')', i);
2891                int sep = uri.indexOf('!', i);
2892                if (sep >= 0 && sep < j) {
2893                    String pkg = uri.substring(i, sep);
2894                    String cls = uri.substring(sep + 1, j);
2895                    intent.mComponent = new ComponentName(pkg, cls);
2896                }
2897                i = j + 1;
2898            }
2899
2900            if (uri.regionMatches(i, "extras(", 0, 7)) {
2901                isIntentFragment = true;
2902                i += 7;
2903
2904                final int closeParen = uri.indexOf(')', i);
2905                if (closeParen == -1) throw new URISyntaxException(uri,
2906                        "EXTRA missing trailing ')'", i);
2907
2908                while (i < closeParen) {
2909                    // fetch the key value
2910                    int j = uri.indexOf('=', i);
2911                    if (j <= i + 1 || i >= closeParen) {
2912                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2913                    }
2914                    char type = uri.charAt(i);
2915                    i++;
2916                    String key = uri.substring(i, j);
2917                    i = j + 1;
2918
2919                    // get type-value
2920                    j = uri.indexOf('!', i);
2921                    if (j == -1 || j >= closeParen) j = closeParen;
2922                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2923                    String value = uri.substring(i, j);
2924                    i = j;
2925
2926                    // create Bundle if it doesn't already exist
2927                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2928
2929                    // add item to bundle
2930                    try {
2931                        switch (type) {
2932                            case 'S':
2933                                intent.mExtras.putString(key, Uri.decode(value));
2934                                break;
2935                            case 'B':
2936                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2937                                break;
2938                            case 'b':
2939                                intent.mExtras.putByte(key, Byte.parseByte(value));
2940                                break;
2941                            case 'c':
2942                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2943                                break;
2944                            case 'd':
2945                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2946                                break;
2947                            case 'f':
2948                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2949                                break;
2950                            case 'i':
2951                                intent.mExtras.putInt(key, Integer.parseInt(value));
2952                                break;
2953                            case 'l':
2954                                intent.mExtras.putLong(key, Long.parseLong(value));
2955                                break;
2956                            case 's':
2957                                intent.mExtras.putShort(key, Short.parseShort(value));
2958                                break;
2959                            default:
2960                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2961                        }
2962                    } catch (NumberFormatException e) {
2963                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2964                    }
2965
2966                    char ch = uri.charAt(i);
2967                    if (ch == ')') break;
2968                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2969                    i++;
2970                }
2971            }
2972
2973            if (isIntentFragment) {
2974                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
2975            } else {
2976                intent.mData = Uri.parse(uri);
2977            }
2978
2979            if (intent.mAction == null) {
2980                // By default, if no action is specified, then use VIEW.
2981                intent.mAction = ACTION_VIEW;
2982            }
2983
2984        } else {
2985            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2986        }
2987
2988        return intent;
2989    }
2990
2991    /**
2992     * Retrieve the general action to be performed, such as
2993     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2994     * the information in the intent should be interpreted -- most importantly,
2995     * what to do with the data returned by {@link #getData}.
2996     *
2997     * @return The action of this intent or null if none is specified.
2998     *
2999     * @see #setAction
3000     */
3001    public String getAction() {
3002        return mAction;
3003    }
3004
3005    /**
3006     * Retrieve data this intent is operating on.  This URI specifies the name
3007     * of the data; often it uses the content: scheme, specifying data in a
3008     * content provider.  Other schemes may be handled by specific activities,
3009     * such as http: by the web browser.
3010     *
3011     * @return The URI of the data this intent is targeting or null.
3012     *
3013     * @see #getScheme
3014     * @see #setData
3015     */
3016    public Uri getData() {
3017        return mData;
3018    }
3019
3020    /**
3021     * The same as {@link #getData()}, but returns the URI as an encoded
3022     * String.
3023     */
3024    public String getDataString() {
3025        return mData != null ? mData.toString() : null;
3026    }
3027
3028    /**
3029     * Return the scheme portion of the intent's data.  If the data is null or
3030     * does not include a scheme, null is returned.  Otherwise, the scheme
3031     * prefix without the final ':' is returned, i.e. "http".
3032     *
3033     * <p>This is the same as calling getData().getScheme() (and checking for
3034     * null data).
3035     *
3036     * @return The scheme of this intent.
3037     *
3038     * @see #getData
3039     */
3040    public String getScheme() {
3041        return mData != null ? mData.getScheme() : null;
3042    }
3043
3044    /**
3045     * Retrieve any explicit MIME type included in the intent.  This is usually
3046     * null, as the type is determined by the intent data.
3047     *
3048     * @return If a type was manually set, it is returned; else null is
3049     *         returned.
3050     *
3051     * @see #resolveType(ContentResolver)
3052     * @see #setType
3053     */
3054    public String getType() {
3055        return mType;
3056    }
3057
3058    /**
3059     * Return the MIME data type of this intent.  If the type field is
3060     * explicitly set, that is simply returned.  Otherwise, if the data is set,
3061     * the type of that data is returned.  If neither fields are set, a null is
3062     * returned.
3063     *
3064     * @return The MIME type of this intent.
3065     *
3066     * @see #getType
3067     * @see #resolveType(ContentResolver)
3068     */
3069    public String resolveType(Context context) {
3070        return resolveType(context.getContentResolver());
3071    }
3072
3073    /**
3074     * Return the MIME data type of this intent.  If the type field is
3075     * explicitly set, that is simply returned.  Otherwise, if the data is set,
3076     * the type of that data is returned.  If neither fields are set, a null is
3077     * returned.
3078     *
3079     * @param resolver A ContentResolver that can be used to determine the MIME
3080     *                 type of the intent's data.
3081     *
3082     * @return The MIME type of this intent.
3083     *
3084     * @see #getType
3085     * @see #resolveType(Context)
3086     */
3087    public String resolveType(ContentResolver resolver) {
3088        if (mType != null) {
3089            return mType;
3090        }
3091        if (mData != null) {
3092            if ("content".equals(mData.getScheme())) {
3093                return resolver.getType(mData);
3094            }
3095        }
3096        return null;
3097    }
3098
3099    /**
3100     * Return the MIME data type of this intent, only if it will be needed for
3101     * intent resolution.  This is not generally useful for application code;
3102     * it is used by the frameworks for communicating with back-end system
3103     * services.
3104     *
3105     * @param resolver A ContentResolver that can be used to determine the MIME
3106     *                 type of the intent's data.
3107     *
3108     * @return The MIME type of this intent, or null if it is unknown or not
3109     *         needed.
3110     */
3111    public String resolveTypeIfNeeded(ContentResolver resolver) {
3112        if (mComponent != null) {
3113            return mType;
3114        }
3115        return resolveType(resolver);
3116    }
3117
3118    /**
3119     * Check if an category exists in the intent.
3120     *
3121     * @param category The category to check.
3122     *
3123     * @return boolean True if the intent contains the category, else false.
3124     *
3125     * @see #getCategories
3126     * @see #addCategory
3127     */
3128    public boolean hasCategory(String category) {
3129        return mCategories != null && mCategories.contains(category);
3130    }
3131
3132    /**
3133     * Return the set of all categories in the intent.  If there are no categories,
3134     * returns NULL.
3135     *
3136     * @return Set The set of categories you can examine.  Do not modify!
3137     *
3138     * @see #hasCategory
3139     * @see #addCategory
3140     */
3141    public Set<String> getCategories() {
3142        return mCategories;
3143    }
3144
3145    /**
3146     * Sets the ClassLoader that will be used when unmarshalling
3147     * any Parcelable values from the extras of this Intent.
3148     *
3149     * @param loader a ClassLoader, or null to use the default loader
3150     * at the time of unmarshalling.
3151     */
3152    public void setExtrasClassLoader(ClassLoader loader) {
3153        if (mExtras != null) {
3154            mExtras.setClassLoader(loader);
3155        }
3156    }
3157
3158    /**
3159     * Returns true if an extra value is associated with the given name.
3160     * @param name the extra's name
3161     * @return true if the given extra is present.
3162     */
3163    public boolean hasExtra(String name) {
3164        return mExtras != null && mExtras.containsKey(name);
3165    }
3166
3167    /**
3168     * Returns true if the Intent's extras contain a parcelled file descriptor.
3169     * @return true if the Intent contains a parcelled file descriptor.
3170     */
3171    public boolean hasFileDescriptors() {
3172        return mExtras != null && mExtras.hasFileDescriptors();
3173    }
3174
3175    /**
3176     * Retrieve extended data from the intent.
3177     *
3178     * @param name The name of the desired item.
3179     *
3180     * @return the value of an item that previously added with putExtra()
3181     * or null if none was found.
3182     *
3183     * @deprecated
3184     * @hide
3185     */
3186    @Deprecated
3187    public Object getExtra(String name) {
3188        return getExtra(name, null);
3189    }
3190
3191    /**
3192     * Retrieve extended data from the intent.
3193     *
3194     * @param name The name of the desired item.
3195     * @param defaultValue the value to be returned if no value of the desired
3196     * type is stored with the given name.
3197     *
3198     * @return the value of an item that previously added with putExtra()
3199     * or the default value if none was found.
3200     *
3201     * @see #putExtra(String, boolean)
3202     */
3203    public boolean getBooleanExtra(String name, boolean defaultValue) {
3204        return mExtras == null ? defaultValue :
3205            mExtras.getBoolean(name, defaultValue);
3206    }
3207
3208    /**
3209     * Retrieve extended data from the intent.
3210     *
3211     * @param name The name of the desired item.
3212     * @param defaultValue the value to be returned if no value of the desired
3213     * type is stored with the given name.
3214     *
3215     * @return the value of an item that previously added with putExtra()
3216     * or the default value if none was found.
3217     *
3218     * @see #putExtra(String, byte)
3219     */
3220    public byte getByteExtra(String name, byte defaultValue) {
3221        return mExtras == null ? defaultValue :
3222            mExtras.getByte(name, defaultValue);
3223    }
3224
3225    /**
3226     * Retrieve extended data from the intent.
3227     *
3228     * @param name The name of the desired item.
3229     * @param defaultValue the value to be returned if no value of the desired
3230     * type is stored with the given name.
3231     *
3232     * @return the value of an item that previously added with putExtra()
3233     * or the default value if none was found.
3234     *
3235     * @see #putExtra(String, short)
3236     */
3237    public short getShortExtra(String name, short defaultValue) {
3238        return mExtras == null ? defaultValue :
3239            mExtras.getShort(name, defaultValue);
3240    }
3241
3242    /**
3243     * Retrieve extended data from the intent.
3244     *
3245     * @param name The name of the desired item.
3246     * @param defaultValue the value to be returned if no value of the desired
3247     * type is stored with the given name.
3248     *
3249     * @return the value of an item that previously added with putExtra()
3250     * or the default value if none was found.
3251     *
3252     * @see #putExtra(String, char)
3253     */
3254    public char getCharExtra(String name, char defaultValue) {
3255        return mExtras == null ? defaultValue :
3256            mExtras.getChar(name, defaultValue);
3257    }
3258
3259    /**
3260     * Retrieve extended data from the intent.
3261     *
3262     * @param name The name of the desired item.
3263     * @param defaultValue the value to be returned if no value of the desired
3264     * type is stored with the given name.
3265     *
3266     * @return the value of an item that previously added with putExtra()
3267     * or the default value if none was found.
3268     *
3269     * @see #putExtra(String, int)
3270     */
3271    public int getIntExtra(String name, int defaultValue) {
3272        return mExtras == null ? defaultValue :
3273            mExtras.getInt(name, defaultValue);
3274    }
3275
3276    /**
3277     * Retrieve extended data from the intent.
3278     *
3279     * @param name The name of the desired item.
3280     * @param defaultValue the value to be returned if no value of the desired
3281     * type is stored with the given name.
3282     *
3283     * @return the value of an item that previously added with putExtra()
3284     * or the default value if none was found.
3285     *
3286     * @see #putExtra(String, long)
3287     */
3288    public long getLongExtra(String name, long defaultValue) {
3289        return mExtras == null ? defaultValue :
3290            mExtras.getLong(name, defaultValue);
3291    }
3292
3293    /**
3294     * Retrieve extended data from the intent.
3295     *
3296     * @param name The name of the desired item.
3297     * @param defaultValue the value to be returned if no value of the desired
3298     * type is stored with the given name.
3299     *
3300     * @return the value of an item that previously added with putExtra(),
3301     * or the default value if no such item is present
3302     *
3303     * @see #putExtra(String, float)
3304     */
3305    public float getFloatExtra(String name, float defaultValue) {
3306        return mExtras == null ? defaultValue :
3307            mExtras.getFloat(name, defaultValue);
3308    }
3309
3310    /**
3311     * Retrieve extended data from the intent.
3312     *
3313     * @param name The name of the desired item.
3314     * @param defaultValue the value to be returned if no value of the desired
3315     * type is stored with the given name.
3316     *
3317     * @return the value of an item that previously added with putExtra()
3318     * or the default value if none was found.
3319     *
3320     * @see #putExtra(String, double)
3321     */
3322    public double getDoubleExtra(String name, double defaultValue) {
3323        return mExtras == null ? defaultValue :
3324            mExtras.getDouble(name, defaultValue);
3325    }
3326
3327    /**
3328     * Retrieve extended data from the intent.
3329     *
3330     * @param name The name of the desired item.
3331     *
3332     * @return the value of an item that previously added with putExtra()
3333     * or null if no String value was found.
3334     *
3335     * @see #putExtra(String, String)
3336     */
3337    public String getStringExtra(String name) {
3338        return mExtras == null ? null : mExtras.getString(name);
3339    }
3340
3341    /**
3342     * Retrieve extended data from the intent.
3343     *
3344     * @param name The name of the desired item.
3345     *
3346     * @return the value of an item that previously added with putExtra()
3347     * or null if no CharSequence value was found.
3348     *
3349     * @see #putExtra(String, CharSequence)
3350     */
3351    public CharSequence getCharSequenceExtra(String name) {
3352        return mExtras == null ? null : mExtras.getCharSequence(name);
3353    }
3354
3355    /**
3356     * Retrieve extended data from the intent.
3357     *
3358     * @param name The name of the desired item.
3359     *
3360     * @return the value of an item that previously added with putExtra()
3361     * or null if no Parcelable value was found.
3362     *
3363     * @see #putExtra(String, Parcelable)
3364     */
3365    public <T extends Parcelable> T getParcelableExtra(String name) {
3366        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3367    }
3368
3369    /**
3370     * Retrieve extended data from the intent.
3371     *
3372     * @param name The name of the desired item.
3373     *
3374     * @return the value of an item that previously added with putExtra()
3375     * or null if no Parcelable[] value was found.
3376     *
3377     * @see #putExtra(String, Parcelable[])
3378     */
3379    public Parcelable[] getParcelableArrayExtra(String name) {
3380        return mExtras == null ? null : mExtras.getParcelableArray(name);
3381    }
3382
3383    /**
3384     * Retrieve extended data from the intent.
3385     *
3386     * @param name The name of the desired item.
3387     *
3388     * @return the value of an item that previously added with putExtra()
3389     * or null if no ArrayList<Parcelable> value was found.
3390     *
3391     * @see #putParcelableArrayListExtra(String, ArrayList)
3392     */
3393    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3394        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3395    }
3396
3397    /**
3398     * Retrieve extended data from the intent.
3399     *
3400     * @param name The name of the desired item.
3401     *
3402     * @return the value of an item that previously added with putExtra()
3403     * or null if no Serializable value was found.
3404     *
3405     * @see #putExtra(String, Serializable)
3406     */
3407    public Serializable getSerializableExtra(String name) {
3408        return mExtras == null ? null : mExtras.getSerializable(name);
3409    }
3410
3411    /**
3412     * Retrieve extended data from the intent.
3413     *
3414     * @param name The name of the desired item.
3415     *
3416     * @return the value of an item that previously added with putExtra()
3417     * or null if no ArrayList<Integer> value was found.
3418     *
3419     * @see #putIntegerArrayListExtra(String, ArrayList)
3420     */
3421    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3422        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3423    }
3424
3425    /**
3426     * Retrieve extended data from the intent.
3427     *
3428     * @param name The name of the desired item.
3429     *
3430     * @return the value of an item that previously added with putExtra()
3431     * or null if no ArrayList<String> value was found.
3432     *
3433     * @see #putStringArrayListExtra(String, ArrayList)
3434     */
3435    public ArrayList<String> getStringArrayListExtra(String name) {
3436        return mExtras == null ? null : mExtras.getStringArrayList(name);
3437    }
3438
3439    /**
3440     * Retrieve extended data from the intent.
3441     *
3442     * @param name The name of the desired item.
3443     *
3444     * @return the value of an item that previously added with putExtra()
3445     * or null if no boolean array value was found.
3446     *
3447     * @see #putExtra(String, boolean[])
3448     */
3449    public boolean[] getBooleanArrayExtra(String name) {
3450        return mExtras == null ? null : mExtras.getBooleanArray(name);
3451    }
3452
3453    /**
3454     * Retrieve extended data from the intent.
3455     *
3456     * @param name The name of the desired item.
3457     *
3458     * @return the value of an item that previously added with putExtra()
3459     * or null if no byte array value was found.
3460     *
3461     * @see #putExtra(String, byte[])
3462     */
3463    public byte[] getByteArrayExtra(String name) {
3464        return mExtras == null ? null : mExtras.getByteArray(name);
3465    }
3466
3467    /**
3468     * Retrieve extended data from the intent.
3469     *
3470     * @param name The name of the desired item.
3471     *
3472     * @return the value of an item that previously added with putExtra()
3473     * or null if no short array value was found.
3474     *
3475     * @see #putExtra(String, short[])
3476     */
3477    public short[] getShortArrayExtra(String name) {
3478        return mExtras == null ? null : mExtras.getShortArray(name);
3479    }
3480
3481    /**
3482     * Retrieve extended data from the intent.
3483     *
3484     * @param name The name of the desired item.
3485     *
3486     * @return the value of an item that previously added with putExtra()
3487     * or null if no char array value was found.
3488     *
3489     * @see #putExtra(String, char[])
3490     */
3491    public char[] getCharArrayExtra(String name) {
3492        return mExtras == null ? null : mExtras.getCharArray(name);
3493    }
3494
3495    /**
3496     * Retrieve extended data from the intent.
3497     *
3498     * @param name The name of the desired item.
3499     *
3500     * @return the value of an item that previously added with putExtra()
3501     * or null if no int array value was found.
3502     *
3503     * @see #putExtra(String, int[])
3504     */
3505    public int[] getIntArrayExtra(String name) {
3506        return mExtras == null ? null : mExtras.getIntArray(name);
3507    }
3508
3509    /**
3510     * Retrieve extended data from the intent.
3511     *
3512     * @param name The name of the desired item.
3513     *
3514     * @return the value of an item that previously added with putExtra()
3515     * or null if no long array value was found.
3516     *
3517     * @see #putExtra(String, long[])
3518     */
3519    public long[] getLongArrayExtra(String name) {
3520        return mExtras == null ? null : mExtras.getLongArray(name);
3521    }
3522
3523    /**
3524     * Retrieve extended data from the intent.
3525     *
3526     * @param name The name of the desired item.
3527     *
3528     * @return the value of an item that previously added with putExtra()
3529     * or null if no float array value was found.
3530     *
3531     * @see #putExtra(String, float[])
3532     */
3533    public float[] getFloatArrayExtra(String name) {
3534        return mExtras == null ? null : mExtras.getFloatArray(name);
3535    }
3536
3537    /**
3538     * Retrieve extended data from the intent.
3539     *
3540     * @param name The name of the desired item.
3541     *
3542     * @return the value of an item that previously added with putExtra()
3543     * or null if no double array value was found.
3544     *
3545     * @see #putExtra(String, double[])
3546     */
3547    public double[] getDoubleArrayExtra(String name) {
3548        return mExtras == null ? null : mExtras.getDoubleArray(name);
3549    }
3550
3551    /**
3552     * Retrieve extended data from the intent.
3553     *
3554     * @param name The name of the desired item.
3555     *
3556     * @return the value of an item that previously added with putExtra()
3557     * or null if no String array value was found.
3558     *
3559     * @see #putExtra(String, String[])
3560     */
3561    public String[] getStringArrayExtra(String name) {
3562        return mExtras == null ? null : mExtras.getStringArray(name);
3563    }
3564
3565    /**
3566     * Retrieve extended data from the intent.
3567     *
3568     * @param name The name of the desired item.
3569     *
3570     * @return the value of an item that previously added with putExtra()
3571     * or null if no Bundle value was found.
3572     *
3573     * @see #putExtra(String, Bundle)
3574     */
3575    public Bundle getBundleExtra(String name) {
3576        return mExtras == null ? null : mExtras.getBundle(name);
3577    }
3578
3579    /**
3580     * Retrieve extended data from the intent.
3581     *
3582     * @param name The name of the desired item.
3583     *
3584     * @return the value of an item that previously added with putExtra()
3585     * or null if no IBinder value was found.
3586     *
3587     * @see #putExtra(String, IBinder)
3588     *
3589     * @deprecated
3590     * @hide
3591     */
3592    @Deprecated
3593    public IBinder getIBinderExtra(String name) {
3594        return mExtras == null ? null : mExtras.getIBinder(name);
3595    }
3596
3597    /**
3598     * Retrieve extended data from the intent.
3599     *
3600     * @param name The name of the desired item.
3601     * @param defaultValue The default value to return in case no item is
3602     * associated with the key 'name'
3603     *
3604     * @return the value of an item that previously added with putExtra()
3605     * or defaultValue if none was found.
3606     *
3607     * @see #putExtra
3608     *
3609     * @deprecated
3610     * @hide
3611     */
3612    @Deprecated
3613    public Object getExtra(String name, Object defaultValue) {
3614        Object result = defaultValue;
3615        if (mExtras != null) {
3616            Object result2 = mExtras.get(name);
3617            if (result2 != null) {
3618                result = result2;
3619            }
3620        }
3621
3622        return result;
3623    }
3624
3625    /**
3626     * Retrieves a map of extended data from the intent.
3627     *
3628     * @return the map of all extras previously added with putExtra(),
3629     * or null if none have been added.
3630     */
3631    public Bundle getExtras() {
3632        return (mExtras != null)
3633                ? new Bundle(mExtras)
3634                : null;
3635    }
3636
3637    /**
3638     * Retrieve any special flags associated with this intent.  You will
3639     * normally just set them with {@link #setFlags} and let the system
3640     * take the appropriate action with them.
3641     *
3642     * @return int The currently set flags.
3643     *
3644     * @see #setFlags
3645     */
3646    public int getFlags() {
3647        return mFlags;
3648    }
3649
3650    /**
3651     * Retrieve the application package name this Intent is limited to.  When
3652     * resolving an Intent, if non-null this limits the resolution to only
3653     * components in the given application package.
3654     *
3655     * @return The name of the application package for the Intent.
3656     *
3657     * @see #resolveActivity
3658     * @see #setPackage
3659     */
3660    public String getPackage() {
3661        return mPackage;
3662    }
3663
3664    /**
3665     * Retrieve the concrete component associated with the intent.  When receiving
3666     * an intent, this is the component that was found to best handle it (that is,
3667     * yourself) and will always be non-null; in all other cases it will be
3668     * null unless explicitly set.
3669     *
3670     * @return The name of the application component to handle the intent.
3671     *
3672     * @see #resolveActivity
3673     * @see #setComponent
3674     */
3675    public ComponentName getComponent() {
3676        return mComponent;
3677    }
3678
3679    /**
3680     * Get the bounds of the sender of this intent, in screen coordinates.  This can be
3681     * used as a hint to the receiver for animations and the like.  Null means that there
3682     * is no source bounds.
3683     */
3684    public Rect getSourceBounds() {
3685        return mSourceBounds;
3686    }
3687
3688    /**
3689     * Return the Activity component that should be used to handle this intent.
3690     * The appropriate component is determined based on the information in the
3691     * intent, evaluated as follows:
3692     *
3693     * <p>If {@link #getComponent} returns an explicit class, that is returned
3694     * without any further consideration.
3695     *
3696     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3697     * category to be considered.
3698     *
3699     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3700     * action.
3701     *
3702     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3703     * this type.
3704     *
3705     * <p>If {@link #addCategory} has added any categories, the activity must
3706     * handle ALL of the categories specified.
3707     *
3708     * <p>If {@link #getPackage} is non-NULL, only activity components in
3709     * that application package will be considered.
3710     *
3711     * <p>If there are no activities that satisfy all of these conditions, a
3712     * null string is returned.
3713     *
3714     * <p>If multiple activities are found to satisfy the intent, the one with
3715     * the highest priority will be used.  If there are multiple activities
3716     * with the same priority, the system will either pick the best activity
3717     * based on user preference, or resolve to a system class that will allow
3718     * the user to pick an activity and forward from there.
3719     *
3720     * <p>This method is implemented simply by calling
3721     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3722     * true.</p>
3723     * <p> This API is called for you as part of starting an activity from an
3724     * intent.  You do not normally need to call it yourself.</p>
3725     *
3726     * @param pm The package manager with which to resolve the Intent.
3727     *
3728     * @return Name of the component implementing an activity that can
3729     *         display the intent.
3730     *
3731     * @see #setComponent
3732     * @see #getComponent
3733     * @see #resolveActivityInfo
3734     */
3735    public ComponentName resolveActivity(PackageManager pm) {
3736        if (mComponent != null) {
3737            return mComponent;
3738        }
3739
3740        ResolveInfo info = pm.resolveActivity(
3741            this, PackageManager.MATCH_DEFAULT_ONLY);
3742        if (info != null) {
3743            return new ComponentName(
3744                    info.activityInfo.applicationInfo.packageName,
3745                    info.activityInfo.name);
3746        }
3747
3748        return null;
3749    }
3750
3751    /**
3752     * Resolve the Intent into an {@link ActivityInfo}
3753     * describing the activity that should execute the intent.  Resolution
3754     * follows the same rules as described for {@link #resolveActivity}, but
3755     * you get back the completely information about the resolved activity
3756     * instead of just its class name.
3757     *
3758     * @param pm The package manager with which to resolve the Intent.
3759     * @param flags Addition information to retrieve as per
3760     * {@link PackageManager#getActivityInfo(ComponentName, int)
3761     * PackageManager.getActivityInfo()}.
3762     *
3763     * @return PackageManager.ActivityInfo
3764     *
3765     * @see #resolveActivity
3766     */
3767    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3768        ActivityInfo ai = null;
3769        if (mComponent != null) {
3770            try {
3771                ai = pm.getActivityInfo(mComponent, flags);
3772            } catch (PackageManager.NameNotFoundException e) {
3773                // ignore
3774            }
3775        } else {
3776            ResolveInfo info = pm.resolveActivity(
3777                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
3778            if (info != null) {
3779                ai = info.activityInfo;
3780            }
3781        }
3782
3783        return ai;
3784    }
3785
3786    /**
3787     * Set the general action to be performed.
3788     *
3789     * @param action An action name, such as ACTION_VIEW.  Application-specific
3790     *               actions should be prefixed with the vendor's package name.
3791     *
3792     * @return Returns the same Intent object, for chaining multiple calls
3793     * into a single statement.
3794     *
3795     * @see #getAction
3796     */
3797    public Intent setAction(String action) {
3798        mAction = action;
3799        return this;
3800    }
3801
3802    /**
3803     * Set the data this intent is operating on.  This method automatically
3804     * clears any type that was previously set by {@link #setType}.
3805     *
3806     * <p><em>Note: scheme and host name matching in the Android framework is
3807     * case-sensitive, unlike the formal RFC.  As a result,
3808     * you should always ensure that you write your Uri with these elements
3809     * using lower case letters, and normalize any Uris you receive from
3810     * outside of Android to ensure the scheme and host is lower case.</em></p>
3811     *
3812     * @param data The URI of the data this intent is now targeting.
3813     *
3814     * @return Returns the same Intent object, for chaining multiple calls
3815     * into a single statement.
3816     *
3817     * @see #getData
3818     * @see #setType
3819     * @see #setDataAndType
3820     */
3821    public Intent setData(Uri data) {
3822        mData = data;
3823        mType = null;
3824        return this;
3825    }
3826
3827    /**
3828     * Set an explicit MIME data type.  This is used to create intents that
3829     * only specify a type and not data, for example to indicate the type of
3830     * data to return.  This method automatically clears any data that was
3831     * previously set by {@link #setData}.
3832     *
3833     * <p><em>Note: MIME type matching in the Android framework is
3834     * case-sensitive, unlike formal RFC MIME types.  As a result,
3835     * you should always write your MIME types with lower case letters,
3836     * and any MIME types you receive from outside of Android should be
3837     * converted to lower case before supplying them here.</em></p>
3838     *
3839     * @param type The MIME type of the data being handled by this intent.
3840     *
3841     * @return Returns the same Intent object, for chaining multiple calls
3842     * into a single statement.
3843     *
3844     * @see #getType
3845     * @see #setData
3846     * @see #setDataAndType
3847     */
3848    public Intent setType(String type) {
3849        mData = null;
3850        mType = type;
3851        return this;
3852    }
3853
3854    /**
3855     * (Usually optional) Set the data for the intent along with an explicit
3856     * MIME data type.  This method should very rarely be used -- it allows you
3857     * to override the MIME type that would ordinarily be inferred from the
3858     * data with your own type given here.
3859     *
3860     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
3861     * Android framework is case-sensitive, unlike the formal RFC definitions.
3862     * As a result, you should always write these elements with lower case letters,
3863     * and normalize any MIME types or Uris you receive from
3864     * outside of Android to ensure these elements are lower case before
3865     * supplying them here.</em></p>
3866     *
3867     * @param data The URI of the data this intent is now targeting.
3868     * @param type The MIME type of the data being handled by this intent.
3869     *
3870     * @return Returns the same Intent object, for chaining multiple calls
3871     * into a single statement.
3872     *
3873     * @see #setData
3874     * @see #setType
3875     */
3876    public Intent setDataAndType(Uri data, String type) {
3877        mData = data;
3878        mType = type;
3879        return this;
3880    }
3881
3882    /**
3883     * Add a new category to the intent.  Categories provide additional detail
3884     * about the action the intent is perform.  When resolving an intent, only
3885     * activities that provide <em>all</em> of the requested categories will be
3886     * used.
3887     *
3888     * @param category The desired category.  This can be either one of the
3889     *               predefined Intent categories, or a custom category in your own
3890     *               namespace.
3891     *
3892     * @return Returns the same Intent object, for chaining multiple calls
3893     * into a single statement.
3894     *
3895     * @see #hasCategory
3896     * @see #removeCategory
3897     */
3898    public Intent addCategory(String category) {
3899        if (mCategories == null) {
3900            mCategories = new HashSet<String>();
3901        }
3902        mCategories.add(category);
3903        return this;
3904    }
3905
3906    /**
3907     * Remove an category from an intent.
3908     *
3909     * @param category The category to remove.
3910     *
3911     * @see #addCategory
3912     */
3913    public void removeCategory(String category) {
3914        if (mCategories != null) {
3915            mCategories.remove(category);
3916            if (mCategories.size() == 0) {
3917                mCategories = null;
3918            }
3919        }
3920    }
3921
3922    /**
3923     * Add extended data to the intent.  The name must include a package
3924     * prefix, for example the app com.android.contacts would use names
3925     * like "com.android.contacts.ShowAll".
3926     *
3927     * @param name The name of the extra data, with package prefix.
3928     * @param value The boolean data value.
3929     *
3930     * @return Returns the same Intent object, for chaining multiple calls
3931     * into a single statement.
3932     *
3933     * @see #putExtras
3934     * @see #removeExtra
3935     * @see #getBooleanExtra(String, boolean)
3936     */
3937    public Intent putExtra(String name, boolean value) {
3938        if (mExtras == null) {
3939            mExtras = new Bundle();
3940        }
3941        mExtras.putBoolean(name, value);
3942        return this;
3943    }
3944
3945    /**
3946     * Add extended data to the intent.  The name must include a package
3947     * prefix, for example the app com.android.contacts would use names
3948     * like "com.android.contacts.ShowAll".
3949     *
3950     * @param name The name of the extra data, with package prefix.
3951     * @param value The byte data value.
3952     *
3953     * @return Returns the same Intent object, for chaining multiple calls
3954     * into a single statement.
3955     *
3956     * @see #putExtras
3957     * @see #removeExtra
3958     * @see #getByteExtra(String, byte)
3959     */
3960    public Intent putExtra(String name, byte value) {
3961        if (mExtras == null) {
3962            mExtras = new Bundle();
3963        }
3964        mExtras.putByte(name, value);
3965        return this;
3966    }
3967
3968    /**
3969     * Add extended data to the intent.  The name must include a package
3970     * prefix, for example the app com.android.contacts would use names
3971     * like "com.android.contacts.ShowAll".
3972     *
3973     * @param name The name of the extra data, with package prefix.
3974     * @param value The char data value.
3975     *
3976     * @return Returns the same Intent object, for chaining multiple calls
3977     * into a single statement.
3978     *
3979     * @see #putExtras
3980     * @see #removeExtra
3981     * @see #getCharExtra(String, char)
3982     */
3983    public Intent putExtra(String name, char value) {
3984        if (mExtras == null) {
3985            mExtras = new Bundle();
3986        }
3987        mExtras.putChar(name, value);
3988        return this;
3989    }
3990
3991    /**
3992     * Add extended data to the intent.  The name must include a package
3993     * prefix, for example the app com.android.contacts would use names
3994     * like "com.android.contacts.ShowAll".
3995     *
3996     * @param name The name of the extra data, with package prefix.
3997     * @param value The short data value.
3998     *
3999     * @return Returns the same Intent object, for chaining multiple calls
4000     * into a single statement.
4001     *
4002     * @see #putExtras
4003     * @see #removeExtra
4004     * @see #getShortExtra(String, short)
4005     */
4006    public Intent putExtra(String name, short value) {
4007        if (mExtras == null) {
4008            mExtras = new Bundle();
4009        }
4010        mExtras.putShort(name, value);
4011        return this;
4012    }
4013
4014    /**
4015     * Add extended data to the intent.  The name must include a package
4016     * prefix, for example the app com.android.contacts would use names
4017     * like "com.android.contacts.ShowAll".
4018     *
4019     * @param name The name of the extra data, with package prefix.
4020     * @param value The integer data value.
4021     *
4022     * @return Returns the same Intent object, for chaining multiple calls
4023     * into a single statement.
4024     *
4025     * @see #putExtras
4026     * @see #removeExtra
4027     * @see #getIntExtra(String, int)
4028     */
4029    public Intent putExtra(String name, int value) {
4030        if (mExtras == null) {
4031            mExtras = new Bundle();
4032        }
4033        mExtras.putInt(name, value);
4034        return this;
4035    }
4036
4037    /**
4038     * Add extended data to the intent.  The name must include a package
4039     * prefix, for example the app com.android.contacts would use names
4040     * like "com.android.contacts.ShowAll".
4041     *
4042     * @param name The name of the extra data, with package prefix.
4043     * @param value The long data value.
4044     *
4045     * @return Returns the same Intent object, for chaining multiple calls
4046     * into a single statement.
4047     *
4048     * @see #putExtras
4049     * @see #removeExtra
4050     * @see #getLongExtra(String, long)
4051     */
4052    public Intent putExtra(String name, long value) {
4053        if (mExtras == null) {
4054            mExtras = new Bundle();
4055        }
4056        mExtras.putLong(name, value);
4057        return this;
4058    }
4059
4060    /**
4061     * Add extended data to the intent.  The name must include a package
4062     * prefix, for example the app com.android.contacts would use names
4063     * like "com.android.contacts.ShowAll".
4064     *
4065     * @param name The name of the extra data, with package prefix.
4066     * @param value The float data value.
4067     *
4068     * @return Returns the same Intent object, for chaining multiple calls
4069     * into a single statement.
4070     *
4071     * @see #putExtras
4072     * @see #removeExtra
4073     * @see #getFloatExtra(String, float)
4074     */
4075    public Intent putExtra(String name, float value) {
4076        if (mExtras == null) {
4077            mExtras = new Bundle();
4078        }
4079        mExtras.putFloat(name, value);
4080        return this;
4081    }
4082
4083    /**
4084     * Add extended data to the intent.  The name must include a package
4085     * prefix, for example the app com.android.contacts would use names
4086     * like "com.android.contacts.ShowAll".
4087     *
4088     * @param name The name of the extra data, with package prefix.
4089     * @param value The double data value.
4090     *
4091     * @return Returns the same Intent object, for chaining multiple calls
4092     * into a single statement.
4093     *
4094     * @see #putExtras
4095     * @see #removeExtra
4096     * @see #getDoubleExtra(String, double)
4097     */
4098    public Intent putExtra(String name, double value) {
4099        if (mExtras == null) {
4100            mExtras = new Bundle();
4101        }
4102        mExtras.putDouble(name, value);
4103        return this;
4104    }
4105
4106    /**
4107     * Add extended data to the intent.  The name must include a package
4108     * prefix, for example the app com.android.contacts would use names
4109     * like "com.android.contacts.ShowAll".
4110     *
4111     * @param name The name of the extra data, with package prefix.
4112     * @param value The String data value.
4113     *
4114     * @return Returns the same Intent object, for chaining multiple calls
4115     * into a single statement.
4116     *
4117     * @see #putExtras
4118     * @see #removeExtra
4119     * @see #getStringExtra(String)
4120     */
4121    public Intent putExtra(String name, String value) {
4122        if (mExtras == null) {
4123            mExtras = new Bundle();
4124        }
4125        mExtras.putString(name, value);
4126        return this;
4127    }
4128
4129    /**
4130     * Add extended data to the intent.  The name must include a package
4131     * prefix, for example the app com.android.contacts would use names
4132     * like "com.android.contacts.ShowAll".
4133     *
4134     * @param name The name of the extra data, with package prefix.
4135     * @param value The CharSequence data value.
4136     *
4137     * @return Returns the same Intent object, for chaining multiple calls
4138     * into a single statement.
4139     *
4140     * @see #putExtras
4141     * @see #removeExtra
4142     * @see #getCharSequenceExtra(String)
4143     */
4144    public Intent putExtra(String name, CharSequence value) {
4145        if (mExtras == null) {
4146            mExtras = new Bundle();
4147        }
4148        mExtras.putCharSequence(name, value);
4149        return this;
4150    }
4151
4152    /**
4153     * Add extended data to the intent.  The name must include a package
4154     * prefix, for example the app com.android.contacts would use names
4155     * like "com.android.contacts.ShowAll".
4156     *
4157     * @param name The name of the extra data, with package prefix.
4158     * @param value The Parcelable data value.
4159     *
4160     * @return Returns the same Intent object, for chaining multiple calls
4161     * into a single statement.
4162     *
4163     * @see #putExtras
4164     * @see #removeExtra
4165     * @see #getParcelableExtra(String)
4166     */
4167    public Intent putExtra(String name, Parcelable value) {
4168        if (mExtras == null) {
4169            mExtras = new Bundle();
4170        }
4171        mExtras.putParcelable(name, value);
4172        return this;
4173    }
4174
4175    /**
4176     * Add extended data to the intent.  The name must include a package
4177     * prefix, for example the app com.android.contacts would use names
4178     * like "com.android.contacts.ShowAll".
4179     *
4180     * @param name The name of the extra data, with package prefix.
4181     * @param value The Parcelable[] data value.
4182     *
4183     * @return Returns the same Intent object, for chaining multiple calls
4184     * into a single statement.
4185     *
4186     * @see #putExtras
4187     * @see #removeExtra
4188     * @see #getParcelableArrayExtra(String)
4189     */
4190    public Intent putExtra(String name, Parcelable[] value) {
4191        if (mExtras == null) {
4192            mExtras = new Bundle();
4193        }
4194        mExtras.putParcelableArray(name, value);
4195        return this;
4196    }
4197
4198    /**
4199     * Add extended data to the intent.  The name must include a package
4200     * prefix, for example the app com.android.contacts would use names
4201     * like "com.android.contacts.ShowAll".
4202     *
4203     * @param name The name of the extra data, with package prefix.
4204     * @param value The ArrayList<Parcelable> data value.
4205     *
4206     * @return Returns the same Intent object, for chaining multiple calls
4207     * into a single statement.
4208     *
4209     * @see #putExtras
4210     * @see #removeExtra
4211     * @see #getParcelableArrayListExtra(String)
4212     */
4213    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
4214        if (mExtras == null) {
4215            mExtras = new Bundle();
4216        }
4217        mExtras.putParcelableArrayList(name, value);
4218        return this;
4219    }
4220
4221    /**
4222     * Add extended data to the intent.  The name must include a package
4223     * prefix, for example the app com.android.contacts would use names
4224     * like "com.android.contacts.ShowAll".
4225     *
4226     * @param name The name of the extra data, with package prefix.
4227     * @param value The ArrayList<Integer> data value.
4228     *
4229     * @return Returns the same Intent object, for chaining multiple calls
4230     * into a single statement.
4231     *
4232     * @see #putExtras
4233     * @see #removeExtra
4234     * @see #getIntegerArrayListExtra(String)
4235     */
4236    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
4237        if (mExtras == null) {
4238            mExtras = new Bundle();
4239        }
4240        mExtras.putIntegerArrayList(name, value);
4241        return this;
4242    }
4243
4244    /**
4245     * Add extended data to the intent.  The name must include a package
4246     * prefix, for example the app com.android.contacts would use names
4247     * like "com.android.contacts.ShowAll".
4248     *
4249     * @param name The name of the extra data, with package prefix.
4250     * @param value The ArrayList<String> data value.
4251     *
4252     * @return Returns the same Intent object, for chaining multiple calls
4253     * into a single statement.
4254     *
4255     * @see #putExtras
4256     * @see #removeExtra
4257     * @see #getStringArrayListExtra(String)
4258     */
4259    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
4260        if (mExtras == null) {
4261            mExtras = new Bundle();
4262        }
4263        mExtras.putStringArrayList(name, value);
4264        return this;
4265    }
4266
4267    /**
4268     * Add extended data to the intent.  The name must include a package
4269     * prefix, for example the app com.android.contacts would use names
4270     * like "com.android.contacts.ShowAll".
4271     *
4272     * @param name The name of the extra data, with package prefix.
4273     * @param value The Serializable data value.
4274     *
4275     * @return Returns the same Intent object, for chaining multiple calls
4276     * into a single statement.
4277     *
4278     * @see #putExtras
4279     * @see #removeExtra
4280     * @see #getSerializableExtra(String)
4281     */
4282    public Intent putExtra(String name, Serializable value) {
4283        if (mExtras == null) {
4284            mExtras = new Bundle();
4285        }
4286        mExtras.putSerializable(name, value);
4287        return this;
4288    }
4289
4290    /**
4291     * Add extended data to the intent.  The name must include a package
4292     * prefix, for example the app com.android.contacts would use names
4293     * like "com.android.contacts.ShowAll".
4294     *
4295     * @param name The name of the extra data, with package prefix.
4296     * @param value The boolean array data value.
4297     *
4298     * @return Returns the same Intent object, for chaining multiple calls
4299     * into a single statement.
4300     *
4301     * @see #putExtras
4302     * @see #removeExtra
4303     * @see #getBooleanArrayExtra(String)
4304     */
4305    public Intent putExtra(String name, boolean[] value) {
4306        if (mExtras == null) {
4307            mExtras = new Bundle();
4308        }
4309        mExtras.putBooleanArray(name, value);
4310        return this;
4311    }
4312
4313    /**
4314     * Add extended data to the intent.  The name must include a package
4315     * prefix, for example the app com.android.contacts would use names
4316     * like "com.android.contacts.ShowAll".
4317     *
4318     * @param name The name of the extra data, with package prefix.
4319     * @param value The byte array data value.
4320     *
4321     * @return Returns the same Intent object, for chaining multiple calls
4322     * into a single statement.
4323     *
4324     * @see #putExtras
4325     * @see #removeExtra
4326     * @see #getByteArrayExtra(String)
4327     */
4328    public Intent putExtra(String name, byte[] value) {
4329        if (mExtras == null) {
4330            mExtras = new Bundle();
4331        }
4332        mExtras.putByteArray(name, value);
4333        return this;
4334    }
4335
4336    /**
4337     * Add extended data to the intent.  The name must include a package
4338     * prefix, for example the app com.android.contacts would use names
4339     * like "com.android.contacts.ShowAll".
4340     *
4341     * @param name The name of the extra data, with package prefix.
4342     * @param value The short array data value.
4343     *
4344     * @return Returns the same Intent object, for chaining multiple calls
4345     * into a single statement.
4346     *
4347     * @see #putExtras
4348     * @see #removeExtra
4349     * @see #getShortArrayExtra(String)
4350     */
4351    public Intent putExtra(String name, short[] value) {
4352        if (mExtras == null) {
4353            mExtras = new Bundle();
4354        }
4355        mExtras.putShortArray(name, value);
4356        return this;
4357    }
4358
4359    /**
4360     * Add extended data to the intent.  The name must include a package
4361     * prefix, for example the app com.android.contacts would use names
4362     * like "com.android.contacts.ShowAll".
4363     *
4364     * @param name The name of the extra data, with package prefix.
4365     * @param value The char array data value.
4366     *
4367     * @return Returns the same Intent object, for chaining multiple calls
4368     * into a single statement.
4369     *
4370     * @see #putExtras
4371     * @see #removeExtra
4372     * @see #getCharArrayExtra(String)
4373     */
4374    public Intent putExtra(String name, char[] value) {
4375        if (mExtras == null) {
4376            mExtras = new Bundle();
4377        }
4378        mExtras.putCharArray(name, value);
4379        return this;
4380    }
4381
4382    /**
4383     * Add extended data to the intent.  The name must include a package
4384     * prefix, for example the app com.android.contacts would use names
4385     * like "com.android.contacts.ShowAll".
4386     *
4387     * @param name The name of the extra data, with package prefix.
4388     * @param value The int array data value.
4389     *
4390     * @return Returns the same Intent object, for chaining multiple calls
4391     * into a single statement.
4392     *
4393     * @see #putExtras
4394     * @see #removeExtra
4395     * @see #getIntArrayExtra(String)
4396     */
4397    public Intent putExtra(String name, int[] value) {
4398        if (mExtras == null) {
4399            mExtras = new Bundle();
4400        }
4401        mExtras.putIntArray(name, value);
4402        return this;
4403    }
4404
4405    /**
4406     * Add extended data to the intent.  The name must include a package
4407     * prefix, for example the app com.android.contacts would use names
4408     * like "com.android.contacts.ShowAll".
4409     *
4410     * @param name The name of the extra data, with package prefix.
4411     * @param value The byte array data value.
4412     *
4413     * @return Returns the same Intent object, for chaining multiple calls
4414     * into a single statement.
4415     *
4416     * @see #putExtras
4417     * @see #removeExtra
4418     * @see #getLongArrayExtra(String)
4419     */
4420    public Intent putExtra(String name, long[] value) {
4421        if (mExtras == null) {
4422            mExtras = new Bundle();
4423        }
4424        mExtras.putLongArray(name, value);
4425        return this;
4426    }
4427
4428    /**
4429     * Add extended data to the intent.  The name must include a package
4430     * prefix, for example the app com.android.contacts would use names
4431     * like "com.android.contacts.ShowAll".
4432     *
4433     * @param name The name of the extra data, with package prefix.
4434     * @param value The float array data value.
4435     *
4436     * @return Returns the same Intent object, for chaining multiple calls
4437     * into a single statement.
4438     *
4439     * @see #putExtras
4440     * @see #removeExtra
4441     * @see #getFloatArrayExtra(String)
4442     */
4443    public Intent putExtra(String name, float[] value) {
4444        if (mExtras == null) {
4445            mExtras = new Bundle();
4446        }
4447        mExtras.putFloatArray(name, value);
4448        return this;
4449    }
4450
4451    /**
4452     * Add extended data to the intent.  The name must include a package
4453     * prefix, for example the app com.android.contacts would use names
4454     * like "com.android.contacts.ShowAll".
4455     *
4456     * @param name The name of the extra data, with package prefix.
4457     * @param value The double array data value.
4458     *
4459     * @return Returns the same Intent object, for chaining multiple calls
4460     * into a single statement.
4461     *
4462     * @see #putExtras
4463     * @see #removeExtra
4464     * @see #getDoubleArrayExtra(String)
4465     */
4466    public Intent putExtra(String name, double[] value) {
4467        if (mExtras == null) {
4468            mExtras = new Bundle();
4469        }
4470        mExtras.putDoubleArray(name, value);
4471        return this;
4472    }
4473
4474    /**
4475     * Add extended data to the intent.  The name must include a package
4476     * prefix, for example the app com.android.contacts would use names
4477     * like "com.android.contacts.ShowAll".
4478     *
4479     * @param name The name of the extra data, with package prefix.
4480     * @param value The String array data value.
4481     *
4482     * @return Returns the same Intent object, for chaining multiple calls
4483     * into a single statement.
4484     *
4485     * @see #putExtras
4486     * @see #removeExtra
4487     * @see #getStringArrayExtra(String)
4488     */
4489    public Intent putExtra(String name, String[] value) {
4490        if (mExtras == null) {
4491            mExtras = new Bundle();
4492        }
4493        mExtras.putStringArray(name, value);
4494        return this;
4495    }
4496
4497    /**
4498     * Add extended data to the intent.  The name must include a package
4499     * prefix, for example the app com.android.contacts would use names
4500     * like "com.android.contacts.ShowAll".
4501     *
4502     * @param name The name of the extra data, with package prefix.
4503     * @param value The Bundle data value.
4504     *
4505     * @return Returns the same Intent object, for chaining multiple calls
4506     * into a single statement.
4507     *
4508     * @see #putExtras
4509     * @see #removeExtra
4510     * @see #getBundleExtra(String)
4511     */
4512    public Intent putExtra(String name, Bundle value) {
4513        if (mExtras == null) {
4514            mExtras = new Bundle();
4515        }
4516        mExtras.putBundle(name, value);
4517        return this;
4518    }
4519
4520    /**
4521     * Add extended data to the intent.  The name must include a package
4522     * prefix, for example the app com.android.contacts would use names
4523     * like "com.android.contacts.ShowAll".
4524     *
4525     * @param name The name of the extra data, with package prefix.
4526     * @param value The IBinder data value.
4527     *
4528     * @return Returns the same Intent object, for chaining multiple calls
4529     * into a single statement.
4530     *
4531     * @see #putExtras
4532     * @see #removeExtra
4533     * @see #getIBinderExtra(String)
4534     *
4535     * @deprecated
4536     * @hide
4537     */
4538    @Deprecated
4539    public Intent putExtra(String name, IBinder value) {
4540        if (mExtras == null) {
4541            mExtras = new Bundle();
4542        }
4543        mExtras.putIBinder(name, value);
4544        return this;
4545    }
4546
4547    /**
4548     * Copy all extras in 'src' in to this intent.
4549     *
4550     * @param src Contains the extras to copy.
4551     *
4552     * @see #putExtra
4553     */
4554    public Intent putExtras(Intent src) {
4555        if (src.mExtras != null) {
4556            if (mExtras == null) {
4557                mExtras = new Bundle(src.mExtras);
4558            } else {
4559                mExtras.putAll(src.mExtras);
4560            }
4561        }
4562        return this;
4563    }
4564
4565    /**
4566     * Add a set of extended data to the intent.  The keys must include a package
4567     * prefix, for example the app com.android.contacts would use names
4568     * like "com.android.contacts.ShowAll".
4569     *
4570     * @param extras The Bundle of extras to add to this intent.
4571     *
4572     * @see #putExtra
4573     * @see #removeExtra
4574     */
4575    public Intent putExtras(Bundle extras) {
4576        if (mExtras == null) {
4577            mExtras = new Bundle();
4578        }
4579        mExtras.putAll(extras);
4580        return this;
4581    }
4582
4583    /**
4584     * Completely replace the extras in the Intent with the extras in the
4585     * given Intent.
4586     *
4587     * @param src The exact extras contained in this Intent are copied
4588     * into the target intent, replacing any that were previously there.
4589     */
4590    public Intent replaceExtras(Intent src) {
4591        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4592        return this;
4593    }
4594
4595    /**
4596     * Completely replace the extras in the Intent with the given Bundle of
4597     * extras.
4598     *
4599     * @param extras The new set of extras in the Intent, or null to erase
4600     * all extras.
4601     */
4602    public Intent replaceExtras(Bundle extras) {
4603        mExtras = extras != null ? new Bundle(extras) : null;
4604        return this;
4605    }
4606
4607    /**
4608     * Remove extended data from the intent.
4609     *
4610     * @see #putExtra
4611     */
4612    public void removeExtra(String name) {
4613        if (mExtras != null) {
4614            mExtras.remove(name);
4615            if (mExtras.size() == 0) {
4616                mExtras = null;
4617            }
4618        }
4619    }
4620
4621    /**
4622     * Set special flags controlling how this intent is handled.  Most values
4623     * here depend on the type of component being executed by the Intent,
4624     * specifically the FLAG_ACTIVITY_* flags are all for use with
4625     * {@link Context#startActivity Context.startActivity()} and the
4626     * FLAG_RECEIVER_* flags are all for use with
4627     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4628     *
4629     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4630     * Activities and Tasks</a> documentation for important information on how some of these options impact
4631     * the behavior of your application.
4632     *
4633     * @param flags The desired flags.
4634     *
4635     * @return Returns the same Intent object, for chaining multiple calls
4636     * into a single statement.
4637     *
4638     * @see #getFlags
4639     * @see #addFlags
4640     *
4641     * @see #FLAG_GRANT_READ_URI_PERMISSION
4642     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4643     * @see #FLAG_DEBUG_LOG_RESOLUTION
4644     * @see #FLAG_FROM_BACKGROUND
4645     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4646     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4647     * @see #FLAG_ACTIVITY_CLEAR_TOP
4648     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4649     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4650     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4651     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4652     * @see #FLAG_ACTIVITY_NEW_TASK
4653     * @see #FLAG_ACTIVITY_NO_HISTORY
4654     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4655     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4656     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4657     * @see #FLAG_ACTIVITY_SINGLE_TOP
4658     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4659     */
4660    public Intent setFlags(int flags) {
4661        mFlags = flags;
4662        return this;
4663    }
4664
4665    /**
4666     * Add additional flags to the intent (or with existing flags
4667     * value).
4668     *
4669     * @param flags The new flags to set.
4670     *
4671     * @return Returns the same Intent object, for chaining multiple calls
4672     * into a single statement.
4673     *
4674     * @see #setFlags
4675     */
4676    public Intent addFlags(int flags) {
4677        mFlags |= flags;
4678        return this;
4679    }
4680
4681    /**
4682     * (Usually optional) Set an explicit application package name that limits
4683     * the components this Intent will resolve to.  If left to the default
4684     * value of null, all components in all applications will considered.
4685     * If non-null, the Intent can only match the components in the given
4686     * application package.
4687     *
4688     * @param packageName The name of the application package to handle the
4689     * intent, or null to allow any application package.
4690     *
4691     * @return Returns the same Intent object, for chaining multiple calls
4692     * into a single statement.
4693     *
4694     * @see #getPackage
4695     * @see #resolveActivity
4696     */
4697    public Intent setPackage(String packageName) {
4698        mPackage = packageName;
4699        return this;
4700    }
4701
4702    /**
4703     * (Usually optional) Explicitly set the component to handle the intent.
4704     * If left with the default value of null, the system will determine the
4705     * appropriate class to use based on the other fields (action, data,
4706     * type, categories) in the Intent.  If this class is defined, the
4707     * specified class will always be used regardless of the other fields.  You
4708     * should only set this value when you know you absolutely want a specific
4709     * class to be used; otherwise it is better to let the system find the
4710     * appropriate class so that you will respect the installed applications
4711     * and user preferences.
4712     *
4713     * @param component The name of the application component to handle the
4714     * intent, or null to let the system find one for you.
4715     *
4716     * @return Returns the same Intent object, for chaining multiple calls
4717     * into a single statement.
4718     *
4719     * @see #setClass
4720     * @see #setClassName(Context, String)
4721     * @see #setClassName(String, String)
4722     * @see #getComponent
4723     * @see #resolveActivity
4724     */
4725    public Intent setComponent(ComponentName component) {
4726        mComponent = component;
4727        return this;
4728    }
4729
4730    /**
4731     * Convenience for calling {@link #setComponent} with an
4732     * explicit class name.
4733     *
4734     * @param packageContext A Context of the application package implementing
4735     * this class.
4736     * @param className The name of a class inside of the application package
4737     * that will be used as the component for this Intent.
4738     *
4739     * @return Returns the same Intent object, for chaining multiple calls
4740     * into a single statement.
4741     *
4742     * @see #setComponent
4743     * @see #setClass
4744     */
4745    public Intent setClassName(Context packageContext, String className) {
4746        mComponent = new ComponentName(packageContext, className);
4747        return this;
4748    }
4749
4750    /**
4751     * Convenience for calling {@link #setComponent} with an
4752     * explicit application package name and class name.
4753     *
4754     * @param packageName The name of the package implementing the desired
4755     * component.
4756     * @param className The name of a class inside of the application package
4757     * that will be used as the component for this Intent.
4758     *
4759     * @return Returns the same Intent object, for chaining multiple calls
4760     * into a single statement.
4761     *
4762     * @see #setComponent
4763     * @see #setClass
4764     */
4765    public Intent setClassName(String packageName, String className) {
4766        mComponent = new ComponentName(packageName, className);
4767        return this;
4768    }
4769
4770    /**
4771     * Convenience for calling {@link #setComponent(ComponentName)} with the
4772     * name returned by a {@link Class} object.
4773     *
4774     * @param packageContext A Context of the application package implementing
4775     * this class.
4776     * @param cls The class name to set, equivalent to
4777     *            <code>setClassName(context, cls.getName())</code>.
4778     *
4779     * @return Returns the same Intent object, for chaining multiple calls
4780     * into a single statement.
4781     *
4782     * @see #setComponent
4783     */
4784    public Intent setClass(Context packageContext, Class<?> cls) {
4785        mComponent = new ComponentName(packageContext, cls);
4786        return this;
4787    }
4788
4789    /**
4790     * Set the bounds of the sender of this intent, in screen coordinates.  This can be
4791     * used as a hint to the receiver for animations and the like.  Null means that there
4792     * is no source bounds.
4793     */
4794    public void setSourceBounds(Rect r) {
4795        if (r != null) {
4796            mSourceBounds = new Rect(r);
4797        } else {
4798            r = null;
4799        }
4800    }
4801
4802    /**
4803     * Use with {@link #fillIn} to allow the current action value to be
4804     * overwritten, even if it is already set.
4805     */
4806    public static final int FILL_IN_ACTION = 1<<0;
4807
4808    /**
4809     * Use with {@link #fillIn} to allow the current data or type value
4810     * overwritten, even if it is already set.
4811     */
4812    public static final int FILL_IN_DATA = 1<<1;
4813
4814    /**
4815     * Use with {@link #fillIn} to allow the current categories to be
4816     * overwritten, even if they are already set.
4817     */
4818    public static final int FILL_IN_CATEGORIES = 1<<2;
4819
4820    /**
4821     * Use with {@link #fillIn} to allow the current component value to be
4822     * overwritten, even if it is already set.
4823     */
4824    public static final int FILL_IN_COMPONENT = 1<<3;
4825
4826    /**
4827     * Use with {@link #fillIn} to allow the current package value to be
4828     * overwritten, even if it is already set.
4829     */
4830    public static final int FILL_IN_PACKAGE = 1<<4;
4831
4832    /**
4833     * Use with {@link #fillIn} to allow the current package value to be
4834     * overwritten, even if it is already set.
4835     */
4836    public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
4837
4838    /**
4839     * Copy the contents of <var>other</var> in to this object, but only
4840     * where fields are not defined by this object.  For purposes of a field
4841     * being defined, the following pieces of data in the Intent are
4842     * considered to be separate fields:
4843     *
4844     * <ul>
4845     * <li> action, as set by {@link #setAction}.
4846     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4847     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4848     * <li> categories, as set by {@link #addCategory}.
4849     * <li> package, as set by {@link #setPackage}.
4850     * <li> component, as set by {@link #setComponent(ComponentName)} or
4851     * related methods.
4852     * <li> source bounds, as set by {@link #setSourceBounds}
4853     * <li> each top-level name in the associated extras.
4854     * </ul>
4855     *
4856     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4857     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4858     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
4859     * corresponding field will not be replaced if it is already set.
4860     *
4861     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
4862     * specified.
4863     *
4864     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4865     * and Intent B with {action="gotit", data-type="some/thing",
4866     * categories="one","two"}.
4867     *
4868     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4869     * containing: {action="gotit", data-type="some/thing",
4870     * categories="bar"}.
4871     *
4872     * @param other Another Intent whose values are to be used to fill in
4873     * the current one.
4874     * @param flags Options to control which fields can be filled in.
4875     *
4876     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4877     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4878     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4879     */
4880    public int fillIn(Intent other, int flags) {
4881        int changes = 0;
4882        if (other.mAction != null
4883                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
4884            mAction = other.mAction;
4885            changes |= FILL_IN_ACTION;
4886        }
4887        if ((other.mData != null || other.mType != null)
4888                && ((mData == null && mType == null)
4889                        || (flags&FILL_IN_DATA) != 0)) {
4890            mData = other.mData;
4891            mType = other.mType;
4892            changes |= FILL_IN_DATA;
4893        }
4894        if (other.mCategories != null
4895                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
4896            if (other.mCategories != null) {
4897                mCategories = new HashSet<String>(other.mCategories);
4898            }
4899            changes |= FILL_IN_CATEGORIES;
4900        }
4901        if (other.mPackage != null
4902                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
4903            mPackage = other.mPackage;
4904            changes |= FILL_IN_PACKAGE;
4905        }
4906        // Component is special: it can -only- be set if explicitly allowed,
4907        // since otherwise the sender could force the intent somewhere the
4908        // originator didn't intend.
4909        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
4910            mComponent = other.mComponent;
4911            changes |= FILL_IN_COMPONENT;
4912        }
4913        mFlags |= other.mFlags;
4914        if (other.mSourceBounds != null
4915                && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
4916            mSourceBounds = new Rect(other.mSourceBounds);
4917            changes |= FILL_IN_SOURCE_BOUNDS;
4918        }
4919        if (mExtras == null) {
4920            if (other.mExtras != null) {
4921                mExtras = new Bundle(other.mExtras);
4922            }
4923        } else if (other.mExtras != null) {
4924            try {
4925                Bundle newb = new Bundle(other.mExtras);
4926                newb.putAll(mExtras);
4927                mExtras = newb;
4928            } catch (RuntimeException e) {
4929                // Modifying the extras can cause us to unparcel the contents
4930                // of the bundle, and if we do this in the system process that
4931                // may fail.  We really should handle this (i.e., the Bundle
4932                // impl shouldn't be on top of a plain map), but for now just
4933                // ignore it and keep the original contents. :(
4934                Log.w("Intent", "Failure filling in extras", e);
4935            }
4936        }
4937        return changes;
4938    }
4939
4940    /**
4941     * Wrapper class holding an Intent and implementing comparisons on it for
4942     * the purpose of filtering.  The class implements its
4943     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4944     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4945     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4946     * on the wrapped Intent.
4947     */
4948    public static final class FilterComparison {
4949        private final Intent mIntent;
4950        private final int mHashCode;
4951
4952        public FilterComparison(Intent intent) {
4953            mIntent = intent;
4954            mHashCode = intent.filterHashCode();
4955        }
4956
4957        /**
4958         * Return the Intent that this FilterComparison represents.
4959         * @return Returns the Intent held by the FilterComparison.  Do
4960         * not modify!
4961         */
4962        public Intent getIntent() {
4963            return mIntent;
4964        }
4965
4966        @Override
4967        public boolean equals(Object obj) {
4968            if (obj instanceof FilterComparison) {
4969                Intent other = ((FilterComparison)obj).mIntent;
4970                return mIntent.filterEquals(other);
4971            }
4972            return false;
4973        }
4974
4975        @Override
4976        public int hashCode() {
4977            return mHashCode;
4978        }
4979    }
4980
4981    /**
4982     * Determine if two intents are the same for the purposes of intent
4983     * resolution (filtering). That is, if their action, data, type,
4984     * class, and categories are the same.  This does <em>not</em> compare
4985     * any extra data included in the intents.
4986     *
4987     * @param other The other Intent to compare against.
4988     *
4989     * @return Returns true if action, data, type, class, and categories
4990     *         are the same.
4991     */
4992    public boolean filterEquals(Intent other) {
4993        if (other == null) {
4994            return false;
4995        }
4996        if (mAction != other.mAction) {
4997            if (mAction != null) {
4998                if (!mAction.equals(other.mAction)) {
4999                    return false;
5000                }
5001            } else {
5002                if (!other.mAction.equals(mAction)) {
5003                    return false;
5004                }
5005            }
5006        }
5007        if (mData != other.mData) {
5008            if (mData != null) {
5009                if (!mData.equals(other.mData)) {
5010                    return false;
5011                }
5012            } else {
5013                if (!other.mData.equals(mData)) {
5014                    return false;
5015                }
5016            }
5017        }
5018        if (mType != other.mType) {
5019            if (mType != null) {
5020                if (!mType.equals(other.mType)) {
5021                    return false;
5022                }
5023            } else {
5024                if (!other.mType.equals(mType)) {
5025                    return false;
5026                }
5027            }
5028        }
5029        if (mPackage != other.mPackage) {
5030            if (mPackage != null) {
5031                if (!mPackage.equals(other.mPackage)) {
5032                    return false;
5033                }
5034            } else {
5035                if (!other.mPackage.equals(mPackage)) {
5036                    return false;
5037                }
5038            }
5039        }
5040        if (mComponent != other.mComponent) {
5041            if (mComponent != null) {
5042                if (!mComponent.equals(other.mComponent)) {
5043                    return false;
5044                }
5045            } else {
5046                if (!other.mComponent.equals(mComponent)) {
5047                    return false;
5048                }
5049            }
5050        }
5051        if (mCategories != other.mCategories) {
5052            if (mCategories != null) {
5053                if (!mCategories.equals(other.mCategories)) {
5054                    return false;
5055                }
5056            } else {
5057                if (!other.mCategories.equals(mCategories)) {
5058                    return false;
5059                }
5060            }
5061        }
5062
5063        return true;
5064    }
5065
5066    /**
5067     * Generate hash code that matches semantics of filterEquals().
5068     *
5069     * @return Returns the hash value of the action, data, type, class, and
5070     *         categories.
5071     *
5072     * @see #filterEquals
5073     */
5074    public int filterHashCode() {
5075        int code = 0;
5076        if (mAction != null) {
5077            code += mAction.hashCode();
5078        }
5079        if (mData != null) {
5080            code += mData.hashCode();
5081        }
5082        if (mType != null) {
5083            code += mType.hashCode();
5084        }
5085        if (mPackage != null) {
5086            code += mPackage.hashCode();
5087        }
5088        if (mComponent != null) {
5089            code += mComponent.hashCode();
5090        }
5091        if (mCategories != null) {
5092            code += mCategories.hashCode();
5093        }
5094        return code;
5095    }
5096
5097    @Override
5098    public String toString() {
5099        StringBuilder   b = new StringBuilder(128);
5100
5101        b.append("Intent { ");
5102        toShortString(b, true, true);
5103        b.append(" }");
5104
5105        return b.toString();
5106    }
5107
5108    /** @hide */
5109    public String toShortString(boolean comp, boolean extras) {
5110        StringBuilder   b = new StringBuilder(128);
5111        toShortString(b, comp, extras);
5112        return b.toString();
5113    }
5114
5115    /** @hide */
5116    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
5117        boolean first = true;
5118        if (mAction != null) {
5119            b.append("act=").append(mAction);
5120            first = false;
5121        }
5122        if (mCategories != null) {
5123            if (!first) {
5124                b.append(' ');
5125            }
5126            first = false;
5127            b.append("cat=[");
5128            Iterator<String> i = mCategories.iterator();
5129            boolean didone = false;
5130            while (i.hasNext()) {
5131                if (didone) b.append(",");
5132                didone = true;
5133                b.append(i.next());
5134            }
5135            b.append("]");
5136        }
5137        if (mData != null) {
5138            if (!first) {
5139                b.append(' ');
5140            }
5141            first = false;
5142            b.append("dat=").append(mData);
5143        }
5144        if (mType != null) {
5145            if (!first) {
5146                b.append(' ');
5147            }
5148            first = false;
5149            b.append("typ=").append(mType);
5150        }
5151        if (mFlags != 0) {
5152            if (!first) {
5153                b.append(' ');
5154            }
5155            first = false;
5156            b.append("flg=0x").append(Integer.toHexString(mFlags));
5157        }
5158        if (mPackage != null) {
5159            if (!first) {
5160                b.append(' ');
5161            }
5162            first = false;
5163            b.append("pkg=").append(mPackage);
5164        }
5165        if (comp && mComponent != null) {
5166            if (!first) {
5167                b.append(' ');
5168            }
5169            first = false;
5170            b.append("cmp=").append(mComponent.flattenToShortString());
5171        }
5172        if (mSourceBounds != null) {
5173            if (!first) {
5174                b.append(' ');
5175            }
5176            first = false;
5177            b.append("bnds=").append(mSourceBounds.toShortString());
5178        }
5179        if (extras && mExtras != null) {
5180            if (!first) {
5181                b.append(' ');
5182            }
5183            first = false;
5184            b.append("(has extras)");
5185        }
5186    }
5187
5188    /**
5189     * Call {@link #toUri} with 0 flags.
5190     * @deprecated Use {@link #toUri} instead.
5191     */
5192    @Deprecated
5193    public String toURI() {
5194        return toUri(0);
5195    }
5196
5197    /**
5198     * Convert this Intent into a String holding a URI representation of it.
5199     * The returned URI string has been properly URI encoded, so it can be
5200     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
5201     * Intent's data as the base URI, with an additional fragment describing
5202     * the action, categories, type, flags, package, component, and extras.
5203     *
5204     * <p>You can convert the returned string back to an Intent with
5205     * {@link #getIntent}.
5206     *
5207     * @param flags Additional operating flags.  Either 0 or
5208     * {@link #URI_INTENT_SCHEME}.
5209     *
5210     * @return Returns a URI encoding URI string describing the entire contents
5211     * of the Intent.
5212     */
5213    public String toUri(int flags) {
5214        StringBuilder uri = new StringBuilder(128);
5215        String scheme = null;
5216        if (mData != null) {
5217            String data = mData.toString();
5218            if ((flags&URI_INTENT_SCHEME) != 0) {
5219                final int N = data.length();
5220                for (int i=0; i<N; i++) {
5221                    char c = data.charAt(i);
5222                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
5223                            || c == '.' || c == '-') {
5224                        continue;
5225                    }
5226                    if (c == ':' && i > 0) {
5227                        // Valid scheme.
5228                        scheme = data.substring(0, i);
5229                        uri.append("intent:");
5230                        data = data.substring(i+1);
5231                        break;
5232                    }
5233
5234                    // No scheme.
5235                    break;
5236                }
5237            }
5238            uri.append(data);
5239
5240        } else if ((flags&URI_INTENT_SCHEME) != 0) {
5241            uri.append("intent:");
5242        }
5243
5244        uri.append("#Intent;");
5245
5246        if (scheme != null) {
5247            uri.append("scheme=").append(scheme).append(';');
5248        }
5249        if (mAction != null) {
5250            uri.append("action=").append(Uri.encode(mAction)).append(';');
5251        }
5252        if (mCategories != null) {
5253            for (String category : mCategories) {
5254                uri.append("category=").append(Uri.encode(category)).append(';');
5255            }
5256        }
5257        if (mType != null) {
5258            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
5259        }
5260        if (mFlags != 0) {
5261            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
5262        }
5263        if (mPackage != null) {
5264            uri.append("package=").append(Uri.encode(mPackage)).append(';');
5265        }
5266        if (mComponent != null) {
5267            uri.append("component=").append(Uri.encode(
5268                    mComponent.flattenToShortString(), "/")).append(';');
5269        }
5270        if (mSourceBounds != null) {
5271            uri.append("sourceBounds=")
5272                    .append(Uri.encode(mSourceBounds.flattenToString()))
5273                    .append(';');
5274        }
5275        if (mExtras != null) {
5276            for (String key : mExtras.keySet()) {
5277                final Object value = mExtras.get(key);
5278                char entryType =
5279                        value instanceof String    ? 'S' :
5280                        value instanceof Boolean   ? 'B' :
5281                        value instanceof Byte      ? 'b' :
5282                        value instanceof Character ? 'c' :
5283                        value instanceof Double    ? 'd' :
5284                        value instanceof Float     ? 'f' :
5285                        value instanceof Integer   ? 'i' :
5286                        value instanceof Long      ? 'l' :
5287                        value instanceof Short     ? 's' :
5288                        '\0';
5289
5290                if (entryType != '\0') {
5291                    uri.append(entryType);
5292                    uri.append('.');
5293                    uri.append(Uri.encode(key));
5294                    uri.append('=');
5295                    uri.append(Uri.encode(value.toString()));
5296                    uri.append(';');
5297                }
5298            }
5299        }
5300
5301        uri.append("end");
5302
5303        return uri.toString();
5304    }
5305
5306    public int describeContents() {
5307        return (mExtras != null) ? mExtras.describeContents() : 0;
5308    }
5309
5310    public void writeToParcel(Parcel out, int flags) {
5311        out.writeString(mAction);
5312        Uri.writeToParcel(out, mData);
5313        out.writeString(mType);
5314        out.writeInt(mFlags);
5315        out.writeString(mPackage);
5316        ComponentName.writeToParcel(mComponent, out);
5317
5318        if (mSourceBounds != null) {
5319            out.writeInt(1);
5320            mSourceBounds.writeToParcel(out, flags);
5321        } else {
5322            out.writeInt(0);
5323        }
5324
5325        if (mCategories != null) {
5326            out.writeInt(mCategories.size());
5327            for (String category : mCategories) {
5328                out.writeString(category);
5329            }
5330        } else {
5331            out.writeInt(0);
5332        }
5333
5334        out.writeBundle(mExtras);
5335    }
5336
5337    public static final Parcelable.Creator<Intent> CREATOR
5338            = new Parcelable.Creator<Intent>() {
5339        public Intent createFromParcel(Parcel in) {
5340            return new Intent(in);
5341        }
5342        public Intent[] newArray(int size) {
5343            return new Intent[size];
5344        }
5345    };
5346
5347    /** @hide */
5348    protected Intent(Parcel in) {
5349        readFromParcel(in);
5350    }
5351
5352    public void readFromParcel(Parcel in) {
5353        mAction = in.readString();
5354        mData = Uri.CREATOR.createFromParcel(in);
5355        mType = in.readString();
5356        mFlags = in.readInt();
5357        mPackage = in.readString();
5358        mComponent = ComponentName.readFromParcel(in);
5359
5360        if (in.readInt() != 0) {
5361            mSourceBounds = Rect.CREATOR.createFromParcel(in);
5362        }
5363
5364        int N = in.readInt();
5365        if (N > 0) {
5366            mCategories = new HashSet<String>();
5367            int i;
5368            for (i=0; i<N; i++) {
5369                mCategories.add(in.readString());
5370            }
5371        } else {
5372            mCategories = null;
5373        }
5374
5375        mExtras = in.readBundle();
5376    }
5377
5378    /**
5379     * Parses the "intent" element (and its children) from XML and instantiates
5380     * an Intent object.  The given XML parser should be located at the tag
5381     * where parsing should start (often named "intent"), from which the
5382     * basic action, data, type, and package and class name will be
5383     * retrieved.  The function will then parse in to any child elements,
5384     * looking for <category android:name="xxx"> tags to add categories and
5385     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5386     * to the intent.
5387     *
5388     * @param resources The Resources to use when inflating resources.
5389     * @param parser The XML parser pointing at an "intent" tag.
5390     * @param attrs The AttributeSet interface for retrieving extended
5391     * attribute data at the current <var>parser</var> location.
5392     * @return An Intent object matching the XML data.
5393     * @throws XmlPullParserException If there was an XML parsing error.
5394     * @throws IOException If there was an I/O error.
5395     */
5396    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5397            throws XmlPullParserException, IOException {
5398        Intent intent = new Intent();
5399
5400        TypedArray sa = resources.obtainAttributes(attrs,
5401                com.android.internal.R.styleable.Intent);
5402
5403        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5404
5405        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5406        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5407        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5408
5409        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5410        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5411        if (packageName != null && className != null) {
5412            intent.setComponent(new ComponentName(packageName, className));
5413        }
5414
5415        sa.recycle();
5416
5417        int outerDepth = parser.getDepth();
5418        int type;
5419        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5420               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5421            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5422                continue;
5423            }
5424
5425            String nodeName = parser.getName();
5426            if (nodeName.equals("category")) {
5427                sa = resources.obtainAttributes(attrs,
5428                        com.android.internal.R.styleable.IntentCategory);
5429                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5430                sa.recycle();
5431
5432                if (cat != null) {
5433                    intent.addCategory(cat);
5434                }
5435                XmlUtils.skipCurrentTag(parser);
5436
5437            } else if (nodeName.equals("extra")) {
5438                if (intent.mExtras == null) {
5439                    intent.mExtras = new Bundle();
5440                }
5441                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5442                XmlUtils.skipCurrentTag(parser);
5443
5444            } else {
5445                XmlUtils.skipCurrentTag(parser);
5446            }
5447        }
5448
5449        return intent;
5450    }
5451}
5452