Intent.java revision 121370d25c7c7113fb7913ab90f45c667b26af57
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.content;
18
19import org.xmlpull.v1.XmlPullParser;
20import org.xmlpull.v1.XmlPullParserException;
21
22import android.annotation.SdkConstant;
23import android.annotation.SdkConstant.SdkConstantType;
24import android.content.pm.ActivityInfo;
25import android.content.pm.PackageManager;
26import android.content.pm.ResolveInfo;
27import android.content.res.Resources;
28import android.content.res.TypedArray;
29import android.graphics.Rect;
30import android.net.Uri;
31import android.os.Bundle;
32import android.os.IBinder;
33import android.os.Parcel;
34import android.os.Parcelable;
35import android.util.AttributeSet;
36import android.util.Log;
37
38import com.android.internal.util.XmlUtils;
39
40import java.io.IOException;
41import java.io.Serializable;
42import java.net.URISyntaxException;
43import java.util.ArrayList;
44import java.util.HashSet;
45import java.util.Iterator;
46import java.util.Set;
47
48/**
49 * An intent is an abstract description of an operation to be performed.  It
50 * can be used with {@link Context#startActivity(Intent) startActivity} to
51 * launch an {@link android.app.Activity},
52 * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
53 * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
54 * and {@link android.content.Context#startService} or
55 * {@link android.content.Context#bindService} to communicate with a
56 * background {@link android.app.Service}.
57 *
58 * <p>An Intent provides a facility for performing late runtime binding between
59 * the code in different applications.  Its most significant use is in the
60 * launching of activities, where it can be thought of as the glue between
61 * activities. It is
62 * basically a passive data structure holding an abstract description of an
63 * action to be performed. The primary pieces of information in an intent
64 * are:</p>
65 *
66 * <ul>
67 *   <li> <p><b>action</b> -- The general action to be performed, such as
68 *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
69 *     etc.</p>
70 *   </li>
71 *   <li> <p><b>data</b> -- The data to operate on, such as a person record
72 *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
73 *   </li>
74 * </ul>
75 *
76 *
77 * <p>Some examples of action/data pairs are:</p>
78 *
79 * <ul>
80 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
81 *     information about the person whose identifier is "1".</p>
82 *   </li>
83 *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
84 *     the phone dialer with the person filled in.</p>
85 *   </li>
86 *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
87 *     the phone dialer with the given number filled in.  Note how the
88 *     VIEW action does what what is considered the most reasonable thing for
89 *     a particular URI.</p>
90 *   </li>
91 *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
92 *     the phone dialer with the given number filled in.</p>
93 *   </li>
94 *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
95 *     information about the person whose identifier is "1".</p>
96 *   </li>
97 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
98 *     a list of people, which the user can browse through.  This example is a
99 *     typical top-level entry into the Contacts application, showing you the
100 *     list of people. Selecting a particular person to view would result in a
101 *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
102 *     being used to start an activity to display that person.</p>
103 *   </li>
104 * </ul>
105 *
106 * <p>In addition to these primary attributes, there are a number of secondary
107 * attributes that you can also include with an intent:</p>
108 *
109 * <ul>
110 *     <li> <p><b>category</b> -- Gives additional information about the action
111 *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
112 *         appear in the Launcher as a top-level application, while
113 *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
114 *         of alternative actions the user can perform on a piece of data.</p>
115 *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
116 *         intent data.  Normally the type is inferred from the data itself.
117 *         By setting this attribute, you disable that evaluation and force
118 *         an explicit type.</p>
119 *     <li> <p><b>component</b> -- Specifies an explicit name of a component
120 *         class to use for the intent.  Normally this is determined by looking
121 *         at the other information in the intent (the action, data/type, and
122 *         categories) and matching that with a component that can handle it.
123 *         If this attribute is set then none of the evaluation is performed,
124 *         and this component is used exactly as is.  By specifying this attribute,
125 *         all of the other Intent attributes become optional.</p>
126 *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
127 *         This can be used to provide extended information to the component.
128 *         For example, if we have a action to send an e-mail message, we could
129 *         also include extra pieces of data here to supply a subject, body,
130 *         etc.</p>
131 * </ul>
132 *
133 * <p>Here are some examples of other operations you can specify as intents
134 * using these additional parameters:</p>
135 *
136 * <ul>
137 *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
138 *     Launch the home screen.</p>
139 *   </li>
140 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
141 *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
142 *     vnd.android.cursor.item/phone}</i></b>
143 *     -- Display the list of people's phone numbers, allowing the user to
144 *     browse through them and pick one and return it to the parent activity.</p>
145 *   </li>
146 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
147 *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
148 *     -- Display all pickers for data that can be opened with
149 *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
150 *     allowing the user to pick one of them and then some data inside of it
151 *     and returning the resulting URI to the caller.  This can be used,
152 *     for example, in an e-mail application to allow the user to pick some
153 *     data to include as an attachment.</p>
154 *   </li>
155 * </ul>
156 *
157 * <p>There are a variety of standard Intent action and category constants
158 * defined in the Intent class, but applications can also define their own.
159 * These strings use java style scoping, to ensure they are unique -- for
160 * example, the standard {@link #ACTION_VIEW} is called
161 * "android.intent.action.VIEW".</p>
162 *
163 * <p>Put together, the set of actions, data types, categories, and extra data
164 * defines a language for the system allowing for the expression of phrases
165 * such as "call john smith's cell".  As applications are added to the system,
166 * they can extend this language by adding new actions, types, and categories, or
167 * they can modify the behavior of existing phrases by supplying their own
168 * activities that handle them.</p>
169 *
170 * <a name="IntentResolution"></a>
171 * <h3>Intent Resolution</h3>
172 *
173 * <p>There are two primary forms of intents you will use.
174 *
175 * <ul>
176 *     <li> <p><b>Explicit Intents</b> have specified a component (via
177 *     {@link #setComponent} or {@link #setClass}), which provides the exact
178 *     class to be run.  Often these will not include any other information,
179 *     simply being a way for an application to launch various internal
180 *     activities it has as the user interacts with the application.
181 *
182 *     <li> <p><b>Implicit Intents</b> have not specified a component;
183 *     instead, they must include enough information for the system to
184 *     determine which of the available components is best to run for that
185 *     intent.
186 * </ul>
187 *
188 * <p>When using implicit intents, given such an arbitrary intent we need to
189 * know what to do with it. This is handled by the process of <em>Intent
190 * resolution</em>, which maps an Intent to an {@link android.app.Activity},
191 * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
192 * more activities/receivers) that can handle it.</p>
193 *
194 * <p>The intent resolution mechanism basically revolves around matching an
195 * Intent against all of the &lt;intent-filter&gt; descriptions in the
196 * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
197 * objects explicitly registered with {@link Context#registerReceiver}.)  More
198 * details on this can be found in the documentation on the {@link
199 * IntentFilter} class.</p>
200 *
201 * <p>There are three pieces of information in the Intent that are used for
202 * resolution: the action, type, and category.  Using this information, a query
203 * is done on the {@link PackageManager} for a component that can handle the
204 * intent. The appropriate component is determined based on the intent
205 * information supplied in the <code>AndroidManifest.xml</code> file as
206 * follows:</p>
207 *
208 * <ul>
209 *     <li> <p>The <b>action</b>, if given, must be listed by the component as
210 *         one it handles.</p>
211 *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
212 *         already supplied in the Intent.  Like the action, if a type is
213 *         included in the intent (either explicitly or implicitly in its
214 *         data), then this must be listed by the component as one it handles.</p>
215 *     <li> For data that is not a <code>content:</code> URI and where no explicit
216 *         type is included in the Intent, instead the <b>scheme</b> of the
217 *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
218 *         considered. Again like the action, if we are matching a scheme it
219 *         must be listed by the component as one it can handle.
220 *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
221 *         by the activity as categories it handles.  That is, if you include
222 *         the categories {@link #CATEGORY_LAUNCHER} and
223 *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
224 *         with an intent that lists <em>both</em> of those categories.
225 *         Activities will very often need to support the
226 *         {@link #CATEGORY_DEFAULT} so that they can be found by
227 *         {@link Context#startActivity Context.startActivity()}.</p>
228 * </ul>
229 *
230 * <p>For example, consider the Note Pad sample application that
231 * allows user to browse through a list of notes data and view details about
232 * individual items.  Text in italics indicate places were you would replace a
233 * name with one specific to your own package.</p>
234 *
235 * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
236 *       package="<i>com.android.notepad</i>"&gt;
237 *     &lt;application android:icon="@drawable/app_notes"
238 *             android:label="@string/app_name"&gt;
239 *
240 *         &lt;provider class=".NotePadProvider"
241 *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
242 *
243 *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
244 *             &lt;intent-filter&gt;
245 *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
246 *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
247 *             &lt;/intent-filter&gt;
248 *             &lt;intent-filter&gt;
249 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
250 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
251 *                 &lt;action android:name="android.intent.action.PICK" /&gt;
252 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
253 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
254 *             &lt;/intent-filter&gt;
255 *             &lt;intent-filter&gt;
256 *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
257 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
258 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
259 *             &lt;/intent-filter&gt;
260 *         &lt;/activity&gt;
261 *
262 *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
263 *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
264 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
265 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
266 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
267 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
268 *             &lt;/intent-filter&gt;
269 *
270 *             &lt;intent-filter&gt;
271 *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
272 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
273 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
274 *             &lt;/intent-filter&gt;
275 *
276 *         &lt;/activity&gt;
277 *
278 *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
279 *                 android:theme="@android:style/Theme.Dialog"&gt;
280 *             &lt;intent-filter android:label="@string/resolve_title"&gt;
281 *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
282 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
283 *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
284 *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
285 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
286 *             &lt;/intent-filter&gt;
287 *         &lt;/activity&gt;
288 *
289 *     &lt;/application&gt;
290 * &lt;/manifest&gt;</pre>
291 *
292 * <p>The first activity,
293 * <code>com.android.notepad.NotesList</code>, serves as our main
294 * entry into the app.  It can do three things as described by its three intent
295 * templates:
296 * <ol>
297 * <li><pre>
298 * &lt;intent-filter&gt;
299 *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
300 *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
301 * &lt;/intent-filter&gt;</pre>
302 * <p>This provides a top-level entry into the NotePad application: the standard
303 * MAIN action is a main entry point (not requiring any other information in
304 * the Intent), and the LAUNCHER category says that this entry point should be
305 * listed in the application launcher.</p>
306 * <li><pre>
307 * &lt;intent-filter&gt;
308 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
309 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
310 *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
311 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
312 *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
313 * &lt;/intent-filter&gt;</pre>
314 * <p>This declares the things that the activity can do on a directory of
315 * notes.  The type being supported is given with the &lt;type&gt; tag, where
316 * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
317 * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
318 * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
319 * The activity allows the user to view or edit the directory of data (via
320 * the VIEW and EDIT actions), or to pick a particular note and return it
321 * to the caller (via the PICK action).  Note also the DEFAULT category
322 * supplied here: this is <em>required</em> for the
323 * {@link Context#startActivity Context.startActivity} method to resolve your
324 * activity when its component name is not explicitly specified.</p>
325 * <li><pre>
326 * &lt;intent-filter&gt;
327 *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
328 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
329 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
330 * &lt;/intent-filter&gt;</pre>
331 * <p>This filter describes the ability return to the caller a note selected by
332 * the user without needing to know where it came from.  The data type
333 * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
334 * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
335 * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
336 * The GET_CONTENT action is similar to the PICK action, where the activity
337 * will return to its caller a piece of data selected by the user.  Here,
338 * however, the caller specifies the type of data they desire instead of
339 * the type of data the user will be picking from.</p>
340 * </ol>
341 *
342 * <p>Given these capabilities, the following intents will resolve to the
343 * NotesList activity:</p>
344 *
345 * <ul>
346 *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
347 *         activities that can be used as top-level entry points into an
348 *         application.</p>
349 *     <li> <p><b>{ action=android.app.action.MAIN,
350 *         category=android.app.category.LAUNCHER }</b> is the actual intent
351 *         used by the Launcher to populate its top-level list.</p>
352 *     <li> <p><b>{ action=android.intent.action.VIEW
353 *          data=content://com.google.provider.NotePad/notes }</b>
354 *         displays a list of all the notes under
355 *         "content://com.google.provider.NotePad/notes", which
356 *         the user can browse through and see the details on.</p>
357 *     <li> <p><b>{ action=android.app.action.PICK
358 *          data=content://com.google.provider.NotePad/notes }</b>
359 *         provides a list of the notes under
360 *         "content://com.google.provider.NotePad/notes", from which
361 *         the user can pick a note whose data URL is returned back to the caller.</p>
362 *     <li> <p><b>{ action=android.app.action.GET_CONTENT
363 *          type=vnd.android.cursor.item/vnd.google.note }</b>
364 *         is similar to the pick action, but allows the caller to specify the
365 *         kind of data they want back so that the system can find the appropriate
366 *         activity to pick something of that data type.</p>
367 * </ul>
368 *
369 * <p>The second activity,
370 * <code>com.android.notepad.NoteEditor</code>, shows the user a single
371 * note entry and allows them to edit it.  It can do two things as described
372 * by its two intent templates:
373 * <ol>
374 * <li><pre>
375 * &lt;intent-filter android:label="@string/resolve_edit"&gt;
376 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
377 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
378 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
379 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
380 * &lt;/intent-filter&gt;</pre>
381 * <p>The first, primary, purpose of this activity is to let the user interact
382 * with a single note, as decribed by the MIME type
383 * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
384 * either VIEW a note or allow the user to EDIT it.  Again we support the
385 * DEFAULT category to allow the activity to be launched without explicitly
386 * specifying its component.</p>
387 * <li><pre>
388 * &lt;intent-filter&gt;
389 *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
390 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
391 *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
392 * &lt;/intent-filter&gt;</pre>
393 * <p>The secondary use of this activity is to insert a new note entry into
394 * an existing directory of notes.  This is used when the user creates a new
395 * note: the INSERT action is executed on the directory of notes, causing
396 * this activity to run and have the user create the new note data which
397 * it then adds to the content provider.</p>
398 * </ol>
399 *
400 * <p>Given these capabilities, the following intents will resolve to the
401 * NoteEditor activity:</p>
402 *
403 * <ul>
404 *     <li> <p><b>{ action=android.intent.action.VIEW
405 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
406 *         shows the user the content of note <var>{ID}</var>.</p>
407 *     <li> <p><b>{ action=android.app.action.EDIT
408 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
409 *         allows the user to edit the content of note <var>{ID}</var>.</p>
410 *     <li> <p><b>{ action=android.app.action.INSERT
411 *          data=content://com.google.provider.NotePad/notes }</b>
412 *         creates a new, empty note in the notes list at
413 *         "content://com.google.provider.NotePad/notes"
414 *         and allows the user to edit it.  If they keep their changes, the URI
415 *         of the newly created note is returned to the caller.</p>
416 * </ul>
417 *
418 * <p>The last activity,
419 * <code>com.android.notepad.TitleEditor</code>, allows the user to
420 * edit the title of a note.  This could be implemented as a class that the
421 * application directly invokes (by explicitly setting its component in
422 * the Intent), but here we show a way you can publish alternative
423 * operations on existing data:</p>
424 *
425 * <pre>
426 * &lt;intent-filter android:label="@string/resolve_title"&gt;
427 *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
428 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
429 *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
430 *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
431 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
432 * &lt;/intent-filter&gt;</pre>
433 *
434 * <p>In the single intent template here, we
435 * have created our own private action called
436 * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
437 * edit the title of a note.  It must be invoked on a specific note
438 * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
439 * view and edit actions, but here displays and edits the title contained
440 * in the note data.
441 *
442 * <p>In addition to supporting the default category as usual, our title editor
443 * also supports two other standard categories: ALTERNATIVE and
444 * SELECTED_ALTERNATIVE.  Implementing
445 * these categories allows others to find the special action it provides
446 * without directly knowing about it, through the
447 * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
448 * more often to build dynamic menu items with
449 * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
450 * template here was also supply an explicit name for the template
451 * (via <code>android:label="@string/resolve_title"</code>) to better control
452 * what the user sees when presented with this activity as an alternative
453 * action to the data they are viewing.
454 *
455 * <p>Given these capabilities, the following intent will resolve to the
456 * TitleEditor activity:</p>
457 *
458 * <ul>
459 *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
460 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
461 *         displays and allows the user to edit the title associated
462 *         with note <var>{ID}</var>.</p>
463 * </ul>
464 *
465 * <h3>Standard Activity Actions</h3>
466 *
467 * <p>These are the current standard actions that Intent defines for launching
468 * activities (usually through {@link Context#startActivity}.  The most
469 * important, and by far most frequently used, are {@link #ACTION_MAIN} and
470 * {@link #ACTION_EDIT}.
471 *
472 * <ul>
473 *     <li> {@link #ACTION_MAIN}
474 *     <li> {@link #ACTION_VIEW}
475 *     <li> {@link #ACTION_ATTACH_DATA}
476 *     <li> {@link #ACTION_EDIT}
477 *     <li> {@link #ACTION_PICK}
478 *     <li> {@link #ACTION_CHOOSER}
479 *     <li> {@link #ACTION_GET_CONTENT}
480 *     <li> {@link #ACTION_DIAL}
481 *     <li> {@link #ACTION_CALL}
482 *     <li> {@link #ACTION_SEND}
483 *     <li> {@link #ACTION_SENDTO}
484 *     <li> {@link #ACTION_ANSWER}
485 *     <li> {@link #ACTION_INSERT}
486 *     <li> {@link #ACTION_DELETE}
487 *     <li> {@link #ACTION_RUN}
488 *     <li> {@link #ACTION_SYNC}
489 *     <li> {@link #ACTION_PICK_ACTIVITY}
490 *     <li> {@link #ACTION_SEARCH}
491 *     <li> {@link #ACTION_WEB_SEARCH}
492 *     <li> {@link #ACTION_FACTORY_TEST}
493 * </ul>
494 *
495 * <h3>Standard Broadcast Actions</h3>
496 *
497 * <p>These are the current standard actions that Intent defines for receiving
498 * broadcasts (usually through {@link Context#registerReceiver} or a
499 * &lt;receiver&gt; tag in a manifest).
500 *
501 * <ul>
502 *     <li> {@link #ACTION_TIME_TICK}
503 *     <li> {@link #ACTION_TIME_CHANGED}
504 *     <li> {@link #ACTION_TIMEZONE_CHANGED}
505 *     <li> {@link #ACTION_BOOT_COMPLETED}
506 *     <li> {@link #ACTION_PACKAGE_ADDED}
507 *     <li> {@link #ACTION_PACKAGE_CHANGED}
508 *     <li> {@link #ACTION_PACKAGE_REMOVED}
509 *     <li> {@link #ACTION_PACKAGE_RESTARTED}
510 *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
511 *     <li> {@link #ACTION_UID_REMOVED}
512 *     <li> {@link #ACTION_BATTERY_CHANGED}
513 *     <li> {@link #ACTION_POWER_CONNECTED}
514 *     <li> {@link #ACTION_POWER_DISCONNECTED}
515 *     <li> {@link #ACTION_SHUTDOWN}
516 * </ul>
517 *
518 * <h3>Standard Categories</h3>
519 *
520 * <p>These are the current standard categories that can be used to further
521 * clarify an Intent via {@link #addCategory}.
522 *
523 * <ul>
524 *     <li> {@link #CATEGORY_DEFAULT}
525 *     <li> {@link #CATEGORY_BROWSABLE}
526 *     <li> {@link #CATEGORY_TAB}
527 *     <li> {@link #CATEGORY_ALTERNATIVE}
528 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
529 *     <li> {@link #CATEGORY_LAUNCHER}
530 *     <li> {@link #CATEGORY_INFO}
531 *     <li> {@link #CATEGORY_HOME}
532 *     <li> {@link #CATEGORY_PREFERENCE}
533 *     <li> {@link #CATEGORY_TEST}
534 *     <li> {@link #CATEGORY_CAR_DOCK}
535 *     <li> {@link #CATEGORY_DESK_DOCK}
536 *     <li> {@link #CATEGORY_LE_DESK_DOCK}
537 *     <li> {@link #CATEGORY_HE_DESK_DOCK}
538 *     <li> {@link #CATEGORY_CAR_MODE}
539 *     <li> {@link #CATEGORY_APP_MARKET}
540 * </ul>
541 *
542 * <h3>Standard Extra Data</h3>
543 *
544 * <p>These are the current standard fields that can be used as extra data via
545 * {@link #putExtra}.
546 *
547 * <ul>
548 *     <li> {@link #EXTRA_ALARM_COUNT}
549 *     <li> {@link #EXTRA_BCC}
550 *     <li> {@link #EXTRA_CC}
551 *     <li> {@link #EXTRA_CHANGED_COMPONENT_NAME}
552 *     <li> {@link #EXTRA_DATA_REMOVED}
553 *     <li> {@link #EXTRA_DOCK_STATE}
554 *     <li> {@link #EXTRA_DOCK_STATE_HE_DESK}
555 *     <li> {@link #EXTRA_DOCK_STATE_LE_DESK}
556 *     <li> {@link #EXTRA_DOCK_STATE_CAR}
557 *     <li> {@link #EXTRA_DOCK_STATE_DESK}
558 *     <li> {@link #EXTRA_DOCK_STATE_UNDOCKED}
559 *     <li> {@link #EXTRA_DONT_KILL_APP}
560 *     <li> {@link #EXTRA_EMAIL}
561 *     <li> {@link #EXTRA_INITIAL_INTENTS}
562 *     <li> {@link #EXTRA_INTENT}
563 *     <li> {@link #EXTRA_KEY_EVENT}
564 *     <li> {@link #EXTRA_PHONE_NUMBER}
565 *     <li> {@link #EXTRA_REMOTE_INTENT_TOKEN}
566 *     <li> {@link #EXTRA_REPLACING}
567 *     <li> {@link #EXTRA_SHORTCUT_ICON}
568 *     <li> {@link #EXTRA_SHORTCUT_ICON_RESOURCE}
569 *     <li> {@link #EXTRA_SHORTCUT_INTENT}
570 *     <li> {@link #EXTRA_STREAM}
571 *     <li> {@link #EXTRA_SHORTCUT_NAME}
572 *     <li> {@link #EXTRA_SUBJECT}
573 *     <li> {@link #EXTRA_TEMPLATE}
574 *     <li> {@link #EXTRA_TEXT}
575 *     <li> {@link #EXTRA_TITLE}
576 *     <li> {@link #EXTRA_UID}
577 * </ul>
578 *
579 * <h3>Flags</h3>
580 *
581 * <p>These are the possible flags that can be used in the Intent via
582 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
583 * of all possible flags.
584 */
585public class Intent implements Parcelable, Cloneable {
586    // ---------------------------------------------------------------------
587    // ---------------------------------------------------------------------
588    // Standard intent activity actions (see action variable).
589
590    /**
591     *  Activity Action: Start as a main entry point, does not expect to
592     *  receive data.
593     *  <p>Input: nothing
594     *  <p>Output: nothing
595     */
596    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
597    public static final String ACTION_MAIN = "android.intent.action.MAIN";
598
599    /**
600     * Activity Action: Display the data to the user.  This is the most common
601     * action performed on data -- it is the generic action you can use on
602     * a piece of data to get the most reasonable thing to occur.  For example,
603     * when used on a contacts entry it will view the entry; when used on a
604     * mailto: URI it will bring up a compose window filled with the information
605     * supplied by the URI; when used with a tel: URI it will invoke the
606     * dialer.
607     * <p>Input: {@link #getData} is URI from which to retrieve data.
608     * <p>Output: nothing.
609     */
610    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
611    public static final String ACTION_VIEW = "android.intent.action.VIEW";
612
613    /**
614     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
615     * performed on a piece of data.
616     */
617    public static final String ACTION_DEFAULT = ACTION_VIEW;
618
619    /**
620     * Used to indicate that some piece of data should be attached to some other
621     * place.  For example, image data could be attached to a contact.  It is up
622     * to the recipient to decide where the data should be attached; the intent
623     * does not specify the ultimate destination.
624     * <p>Input: {@link #getData} is URI of data to be attached.
625     * <p>Output: nothing.
626     */
627    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
628    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
629
630    /**
631     * Activity Action: Provide explicit editable access to the given data.
632     * <p>Input: {@link #getData} is URI of data to be edited.
633     * <p>Output: nothing.
634     */
635    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
636    public static final String ACTION_EDIT = "android.intent.action.EDIT";
637
638    /**
639     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
640     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
641     * The extras can contain type specific data to pass through to the editing/creating
642     * activity.
643     * <p>Output: The URI of the item that was picked.  This must be a content:
644     * URI so that any receiver can access it.
645     */
646    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
647    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
648
649    /**
650     * Activity Action: Pick an item from the data, returning what was selected.
651     * <p>Input: {@link #getData} is URI containing a directory of data
652     * (vnd.android.cursor.dir/*) from which to pick an item.
653     * <p>Output: The URI of the item that was picked.
654     */
655    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
656    public static final String ACTION_PICK = "android.intent.action.PICK";
657
658    /**
659     * Activity Action: Creates a shortcut.
660     * <p>Input: Nothing.</p>
661     * <p>Output: An Intent representing the shortcut. The intent must contain three
662     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
663     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
664     * (value: ShortcutIconResource).</p>
665     *
666     * @see #EXTRA_SHORTCUT_INTENT
667     * @see #EXTRA_SHORTCUT_NAME
668     * @see #EXTRA_SHORTCUT_ICON
669     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
670     * @see android.content.Intent.ShortcutIconResource
671     */
672    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
673    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
674
675    /**
676     * The name of the extra used to define the Intent of a shortcut.
677     *
678     * @see #ACTION_CREATE_SHORTCUT
679     */
680    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
681    /**
682     * The name of the extra used to define the name of a shortcut.
683     *
684     * @see #ACTION_CREATE_SHORTCUT
685     */
686    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
687    /**
688     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
689     *
690     * @see #ACTION_CREATE_SHORTCUT
691     */
692    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
693    /**
694     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
695     *
696     * @see #ACTION_CREATE_SHORTCUT
697     * @see android.content.Intent.ShortcutIconResource
698     */
699    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
700            "android.intent.extra.shortcut.ICON_RESOURCE";
701
702    /**
703     * Represents a shortcut/live folder icon resource.
704     *
705     * @see Intent#ACTION_CREATE_SHORTCUT
706     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
707     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
708     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
709     */
710    public static class ShortcutIconResource implements Parcelable {
711        /**
712         * The package name of the application containing the icon.
713         */
714        public String packageName;
715
716        /**
717         * The resource name of the icon, including package, name and type.
718         */
719        public String resourceName;
720
721        /**
722         * Creates a new ShortcutIconResource for the specified context and resource
723         * identifier.
724         *
725         * @param context The context of the application.
726         * @param resourceId The resource idenfitier for the icon.
727         * @return A new ShortcutIconResource with the specified's context package name
728         *         and icon resource idenfitier.
729         */
730        public static ShortcutIconResource fromContext(Context context, int resourceId) {
731            ShortcutIconResource icon = new ShortcutIconResource();
732            icon.packageName = context.getPackageName();
733            icon.resourceName = context.getResources().getResourceName(resourceId);
734            return icon;
735        }
736
737        /**
738         * Used to read a ShortcutIconResource from a Parcel.
739         */
740        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
741            new Parcelable.Creator<ShortcutIconResource>() {
742
743                public ShortcutIconResource createFromParcel(Parcel source) {
744                    ShortcutIconResource icon = new ShortcutIconResource();
745                    icon.packageName = source.readString();
746                    icon.resourceName = source.readString();
747                    return icon;
748                }
749
750                public ShortcutIconResource[] newArray(int size) {
751                    return new ShortcutIconResource[size];
752                }
753            };
754
755        /**
756         * No special parcel contents.
757         */
758        public int describeContents() {
759            return 0;
760        }
761
762        public void writeToParcel(Parcel dest, int flags) {
763            dest.writeString(packageName);
764            dest.writeString(resourceName);
765        }
766
767        @Override
768        public String toString() {
769            return resourceName;
770        }
771    }
772
773    /**
774     * Activity Action: Display an activity chooser, allowing the user to pick
775     * what they want to before proceeding.  This can be used as an alternative
776     * to the standard activity picker that is displayed by the system when
777     * you try to start an activity with multiple possible matches, with these
778     * differences in behavior:
779     * <ul>
780     * <li>You can specify the title that will appear in the activity chooser.
781     * <li>The user does not have the option to make one of the matching
782     * activities a preferred activity, and all possible activities will
783     * always be shown even if one of them is currently marked as the
784     * preferred activity.
785     * </ul>
786     * <p>
787     * This action should be used when the user will naturally expect to
788     * select an activity in order to proceed.  An example if when not to use
789     * it is when the user clicks on a "mailto:" link.  They would naturally
790     * expect to go directly to their mail app, so startActivity() should be
791     * called directly: it will
792     * either launch the current preferred app, or put up a dialog allowing the
793     * user to pick an app to use and optionally marking that as preferred.
794     * <p>
795     * In contrast, if the user is selecting a menu item to send a picture
796     * they are viewing to someone else, there are many different things they
797     * may want to do at this point: send it through e-mail, upload it to a
798     * web service, etc.  In this case the CHOOSER action should be used, to
799     * always present to the user a list of the things they can do, with a
800     * nice title given by the caller such as "Send this photo with:".
801     * <p>
802     * As a convenience, an Intent of this form can be created with the
803     * {@link #createChooser} function.
804     * <p>Input: No data should be specified.  get*Extra must have
805     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
806     * and can optionally have a {@link #EXTRA_TITLE} field containing the
807     * title text to display in the chooser.
808     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
809     */
810    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
811    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
812
813    /**
814     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
815     *
816     * @param target The Intent that the user will be selecting an activity
817     * to perform.
818     * @param title Optional title that will be displayed in the chooser.
819     * @return Return a new Intent object that you can hand to
820     * {@link Context#startActivity(Intent) Context.startActivity()} and
821     * related methods.
822     */
823    public static Intent createChooser(Intent target, CharSequence title) {
824        Intent intent = new Intent(ACTION_CHOOSER);
825        intent.putExtra(EXTRA_INTENT, target);
826        if (title != null) {
827            intent.putExtra(EXTRA_TITLE, title);
828        }
829        return intent;
830    }
831    /**
832     * Activity Action: Allow the user to select a particular kind of data and
833     * return it.  This is different than {@link #ACTION_PICK} in that here we
834     * just say what kind of data is desired, not a URI of existing data from
835     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
836     * create the data as it runs (for example taking a picture or recording a
837     * sound), let them browser over the web and download the desired data,
838     * etc.
839     * <p>
840     * There are two main ways to use this action: if you want an specific kind
841     * of data, such as a person contact, you set the MIME type to the kind of
842     * data you want and launch it with {@link Context#startActivity(Intent)}.
843     * The system will then launch the best application to select that kind
844     * of data for you.
845     * <p>
846     * You may also be interested in any of a set of types of content the user
847     * can pick.  For example, an e-mail application that wants to allow the
848     * user to add an attachment to an e-mail message can use this action to
849     * bring up a list of all of the types of content the user can attach.
850     * <p>
851     * In this case, you should wrap the GET_CONTENT intent with a chooser
852     * (through {@link #createChooser}), which will give the proper interface
853     * for the user to pick how to send your data and allow you to specify
854     * a prompt indicating what they are doing.  You will usually specify a
855     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
856     * broad range of content types the user can select from.
857     * <p>
858     * When using such a broad GET_CONTENT action, it is often desireable to
859     * only pick from data that can be represented as a stream.  This is
860     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
861     * <p>
862     * Callers can optionally specify {@link #EXTRA_LOCAL_ONLY} to request that
863     * the launched content chooser only return results representing data that
864     * is locally available on the device.  For example, if this extra is set
865     * to true then an image picker should not show any pictures that are available
866     * from a remote server but not already on the local device (thus requiring
867     * they be downloaded when opened).
868     * <p>
869     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
870     * that no URI is supplied in the intent, as there are no constraints on
871     * where the returned data originally comes from.  You may also include the
872     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
873     * opened as a stream.  You may use {@link #EXTRA_LOCAL_ONLY} to limit content
874     * selection to local data.
875     * <p>
876     * Output: The URI of the item that was picked.  This must be a content:
877     * URI so that any receiver can access it.
878     */
879    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
880    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
881    /**
882     * Activity Action: Dial a number as specified by the data.  This shows a
883     * UI with the number being dialed, allowing the user to explicitly
884     * initiate the call.
885     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
886     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
887     * number.
888     * <p>Output: nothing.
889     */
890    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
891    public static final String ACTION_DIAL = "android.intent.action.DIAL";
892    /**
893     * Activity Action: Perform a call to someone specified by the data.
894     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
895     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
896     * number.
897     * <p>Output: nothing.
898     *
899     * <p>Note: there will be restrictions on which applications can initiate a
900     * call; most applications should use the {@link #ACTION_DIAL}.
901     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
902     * numbers.  Applications can <strong>dial</strong> emergency numbers using
903     * {@link #ACTION_DIAL}, however.
904     */
905    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
906    public static final String ACTION_CALL = "android.intent.action.CALL";
907    /**
908     * Activity Action: Perform a call to an emergency number specified by the
909     * data.
910     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
911     * tel: URI of an explicit phone number.
912     * <p>Output: nothing.
913     * @hide
914     */
915    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
916    /**
917     * Activity action: Perform a call to any number (emergency or not)
918     * specified by the data.
919     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
920     * tel: URI of an explicit phone number.
921     * <p>Output: nothing.
922     * @hide
923     */
924    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
925    /**
926     * Activity Action: Send a message to someone specified by the data.
927     * <p>Input: {@link #getData} is URI describing the target.
928     * <p>Output: nothing.
929     */
930    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
931    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
932    /**
933     * Activity Action: Deliver some data to someone else.  Who the data is
934     * being delivered to is not specified; it is up to the receiver of this
935     * action to ask the user where the data should be sent.
936     * <p>
937     * When launching a SEND intent, you should usually wrap it in a chooser
938     * (through {@link #createChooser}), which will give the proper interface
939     * for the user to pick how to send your data and allow you to specify
940     * a prompt indicating what they are doing.
941     * <p>
942     * Input: {@link #getType} is the MIME type of the data being sent.
943     * get*Extra can have either a {@link #EXTRA_TEXT}
944     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
945     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
946     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
947     * if the MIME type is unknown (this will only allow senders that can
948     * handle generic data streams).
949     * <p>
950     * Optional standard extras, which may be interpreted by some recipients as
951     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
952     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
953     * <p>
954     * Output: nothing.
955     */
956    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
957    public static final String ACTION_SEND = "android.intent.action.SEND";
958    /**
959     * Activity Action: Deliver multiple data to someone else.
960     * <p>
961     * Like ACTION_SEND, except the data is multiple.
962     * <p>
963     * Input: {@link #getType} is the MIME type of the data being sent.
964     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
965     * #EXTRA_STREAM} field, containing the data to be sent.
966     * <p>
967     * Multiple types are supported, and receivers should handle mixed types
968     * whenever possible. The right way for the receiver to check them is to
969     * use the content resolver on each URI. The intent sender should try to
970     * put the most concrete mime type in the intent type, but it can fall
971     * back to {@literal <type>/*} or {@literal *}/* as needed.
972     * <p>
973     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
974     * be image/jpg, but if you are sending image/jpg and image/png, then the
975     * intent's type should be image/*.
976     * <p>
977     * Optional standard extras, which may be interpreted by some recipients as
978     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
979     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
980     * <p>
981     * Output: nothing.
982     */
983    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
984    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
985    /**
986     * Activity Action: Handle an incoming phone call.
987     * <p>Input: nothing.
988     * <p>Output: nothing.
989     */
990    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
991    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
992    /**
993     * Activity Action: Insert an empty item into the given container.
994     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
995     * in which to place the data.
996     * <p>Output: URI of the new data that was created.
997     */
998    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
999    public static final String ACTION_INSERT = "android.intent.action.INSERT";
1000    /**
1001     * Activity Action: Create a new item in the given container, initializing it
1002     * from the current contents of the clipboard.
1003     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
1004     * in which to place the data.
1005     * <p>Output: URI of the new data that was created.
1006     */
1007    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1008    public static final String ACTION_PASTE = "android.intent.action.PASTE";
1009    /**
1010     * Activity Action: Delete the given data from its container.
1011     * <p>Input: {@link #getData} is URI of data to be deleted.
1012     * <p>Output: nothing.
1013     */
1014    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1015    public static final String ACTION_DELETE = "android.intent.action.DELETE";
1016    /**
1017     * Activity Action: Run the data, whatever that means.
1018     * <p>Input: ?  (Note: this is currently specific to the test harness.)
1019     * <p>Output: nothing.
1020     */
1021    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1022    public static final String ACTION_RUN = "android.intent.action.RUN";
1023    /**
1024     * Activity Action: Perform a data synchronization.
1025     * <p>Input: ?
1026     * <p>Output: ?
1027     */
1028    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1029    public static final String ACTION_SYNC = "android.intent.action.SYNC";
1030    /**
1031     * Activity Action: Pick an activity given an intent, returning the class
1032     * selected.
1033     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
1034     * used with {@link PackageManager#queryIntentActivities} to determine the
1035     * set of activities from which to pick.
1036     * <p>Output: Class name of the activity that was selected.
1037     */
1038    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1039    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
1040    /**
1041     * Activity Action: Perform a search.
1042     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1043     * is the text to search for.  If empty, simply
1044     * enter your search results Activity with the search UI activated.
1045     * <p>Output: nothing.
1046     */
1047    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1048    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1049    /**
1050     * Activity Action: Start the platform-defined tutorial
1051     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1052     * is the text to search for.  If empty, simply
1053     * enter your search results Activity with the search UI activated.
1054     * <p>Output: nothing.
1055     */
1056    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1057    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1058    /**
1059     * Activity Action: Perform a web search.
1060     * <p>
1061     * Input: {@link android.app.SearchManager#QUERY
1062     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1063     * a url starts with http or https, the site will be opened. If it is plain
1064     * text, Google search will be applied.
1065     * <p>
1066     * Output: nothing.
1067     */
1068    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1069    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1070    /**
1071     * Activity Action: List all available applications
1072     * <p>Input: Nothing.
1073     * <p>Output: nothing.
1074     */
1075    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1076    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1077    /**
1078     * Activity Action: Show settings for choosing wallpaper
1079     * <p>Input: Nothing.
1080     * <p>Output: Nothing.
1081     */
1082    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1083    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1084
1085    /**
1086     * Activity Action: Show activity for reporting a bug.
1087     * <p>Input: Nothing.
1088     * <p>Output: Nothing.
1089     */
1090    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1091    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1092
1093    /**
1094     *  Activity Action: Main entry point for factory tests.  Only used when
1095     *  the device is booting in factory test node.  The implementing package
1096     *  must be installed in the system image.
1097     *  <p>Input: nothing
1098     *  <p>Output: nothing
1099     */
1100    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1101
1102    /**
1103     * Activity Action: The user pressed the "call" button to go to the dialer
1104     * or other appropriate UI for placing a call.
1105     * <p>Input: Nothing.
1106     * <p>Output: Nothing.
1107     */
1108    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1109    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1110
1111    /**
1112     * Activity Action: Start Voice Command.
1113     * <p>Input: Nothing.
1114     * <p>Output: Nothing.
1115     */
1116    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1117    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1118
1119    /**
1120     * Activity Action: Start action associated with long pressing on the
1121     * search key.
1122     * <p>Input: Nothing.
1123     * <p>Output: Nothing.
1124     */
1125    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1126    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1127
1128    /**
1129     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1130     * This intent is delivered to the package which installed the application, usually
1131     * the Market.
1132     * <p>Input: No data is specified. The bug report is passed in using
1133     * an {@link #EXTRA_BUG_REPORT} field.
1134     * <p>Output: Nothing.
1135     * @hide
1136     */
1137    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1138    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1139
1140    /**
1141     * Activity Action: Show power usage information to the user.
1142     * <p>Input: Nothing.
1143     * <p>Output: Nothing.
1144     */
1145    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1146    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1147
1148    /**
1149     * Activity Action: Setup wizard to launch after a platform update.  This
1150     * activity should have a string meta-data field associated with it,
1151     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1152     * the platform for setup.  The activity will be launched only if
1153     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1154     * same value.
1155     * <p>Input: Nothing.
1156     * <p>Output: Nothing.
1157     * @hide
1158     */
1159    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1160    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1161
1162    /**
1163     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1164     * describing the last run version of the platform that was setup.
1165     * @hide
1166     */
1167    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1168
1169    // ---------------------------------------------------------------------
1170    // ---------------------------------------------------------------------
1171    // Standard intent broadcast actions (see action variable).
1172
1173    /**
1174     * Broadcast Action: Sent after the screen turns off.
1175     *
1176     * <p class="note">This is a protected intent that can only be sent
1177     * by the system.
1178     */
1179    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1180    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1181    /**
1182     * Broadcast Action: Sent after the screen turns on.
1183     *
1184     * <p class="note">This is a protected intent that can only be sent
1185     * by the system.
1186     */
1187    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1188    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1189
1190    /**
1191     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1192     * keyguard is gone).
1193     *
1194     * <p class="note">This is a protected intent that can only be sent
1195     * by the system.
1196     */
1197    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1198    public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
1199
1200    /**
1201     * Broadcast Action: The current time has changed.  Sent every
1202     * minute.  You can <em>not</em> receive this through components declared
1203     * in manifests, only by exlicitly registering for it with
1204     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1205     * Context.registerReceiver()}.
1206     *
1207     * <p class="note">This is a protected intent that can only be sent
1208     * by the system.
1209     */
1210    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1211    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1212    /**
1213     * Broadcast Action: The time was set.
1214     */
1215    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1216    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1217    /**
1218     * Broadcast Action: The date has changed.
1219     */
1220    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1221    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1222    /**
1223     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1224     * <ul>
1225     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1226     * </ul>
1227     *
1228     * <p class="note">This is a protected intent that can only be sent
1229     * by the system.
1230     */
1231    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1232    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1233    /**
1234     * Clear DNS Cache Action: This is broadcast when networks have changed and old
1235     * DNS entries should be tossed.
1236     * @hide
1237     */
1238    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1239    public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
1240    /**
1241     * Alarm Changed Action: This is broadcast when the AlarmClock
1242     * application's alarm is set or unset.  It is used by the
1243     * AlarmClock application and the StatusBar service.
1244     * @hide
1245     */
1246    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1247    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1248    /**
1249     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1250     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1251     * @hide
1252     */
1253    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1254    public static final String ACTION_SYNC_STATE_CHANGED
1255            = "android.intent.action.SYNC_STATE_CHANGED";
1256    /**
1257     * Broadcast Action: This is broadcast once, after the system has finished
1258     * booting.  It can be used to perform application-specific initialization,
1259     * such as installing alarms.  You must hold the
1260     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1261     * in order to receive this broadcast.
1262     *
1263     * <p class="note">This is a protected intent that can only be sent
1264     * by the system.
1265     */
1266    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1267    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1268    /**
1269     * Broadcast Action: This is broadcast when a user action should request a
1270     * temporary system dialog to dismiss.  Some examples of temporary system
1271     * dialogs are the notification window-shade and the recent tasks dialog.
1272     */
1273    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1274    /**
1275     * Broadcast Action: Trigger the download and eventual installation
1276     * of a package.
1277     * <p>Input: {@link #getData} is the URI of the package file to download.
1278     *
1279     * <p class="note">This is a protected intent that can only be sent
1280     * by the system.
1281     */
1282    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1283    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1284    /**
1285     * Broadcast Action: A new application package has been installed on the
1286     * device. The data contains the name of the package.  Note that the
1287     * newly installed package does <em>not</em> receive this broadcast.
1288     * <p>My include the following extras:
1289     * <ul>
1290     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1291     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1292     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1293     * </ul>
1294     *
1295     * <p class="note">This is a protected intent that can only be sent
1296     * by the system.
1297     */
1298    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1299    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1300    /**
1301     * Broadcast Action: A new version of an application package has been
1302     * installed, replacing an existing version that was previously installed.
1303     * The data contains the name of the package.
1304     * <p>My include the following extras:
1305     * <ul>
1306     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1307     * </ul>
1308     *
1309     * <p class="note">This is a protected intent that can only be sent
1310     * by the system.
1311     */
1312    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1313    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1314    /**
1315     * Broadcast Action: An existing application package has been removed from
1316     * the device.  The data contains the name of the package.  The package
1317     * that is being installed does <em>not</em> receive this Intent.
1318     * <ul>
1319     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1320     * to the package.
1321     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1322     * application -- data and code -- is being removed.
1323     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1324     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1325     * </ul>
1326     *
1327     * <p class="note">This is a protected intent that can only be sent
1328     * by the system.
1329     */
1330    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1331    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1332    /**
1333     * Broadcast Action: An existing application package has been changed (e.g.
1334     * a component has been enabled or disabled).  The data contains the name of
1335     * the package.
1336     * <ul>
1337     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1338     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
1339     * of the changed components.
1340     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
1341     * default action of restarting the application.
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_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1349    /**
1350     * @hide
1351     * Broadcast Action: Ask system services if there is any reason to
1352     * restart the given package.  The data contains the name of the
1353     * package.
1354     * <ul>
1355     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1356     * <li> {@link #EXTRA_PACKAGES} String array of all packages to check.
1357     * </ul>
1358     *
1359     * <p class="note">This is a protected intent that can only be sent
1360     * by the system.
1361     */
1362    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1363    public static final String ACTION_QUERY_PACKAGE_RESTART = "android.intent.action.QUERY_PACKAGE_RESTART";
1364    /**
1365     * Broadcast Action: The user has restarted a package, and all of its
1366     * processes have been killed.  All runtime state
1367     * associated with it (processes, alarms, notifications, etc) should
1368     * be removed.  Note that the restarted package does <em>not</em>
1369     * receive this broadcast.
1370     * The data contains the name of the package.
1371     * <ul>
1372     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1373     * </ul>
1374     *
1375     * <p class="note">This is a protected intent that can only be sent
1376     * by the system.
1377     */
1378    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1379    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1380    /**
1381     * Broadcast Action: The user has cleared the data of a package.  This should
1382     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1383     * its persistent data is erased and this broadcast sent.
1384     * Note that the cleared package does <em>not</em>
1385     * receive this broadcast. The data contains the name of the package.
1386     * <ul>
1387     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1388     * </ul>
1389     *
1390     * <p class="note">This is a protected intent that can only be sent
1391     * by the system.
1392     */
1393    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1394    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1395    /**
1396     * Broadcast Action: A user ID has been removed from the system.  The user
1397     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1398     *
1399     * <p class="note">This is a protected intent that can only be sent
1400     * by the system.
1401     */
1402    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1403    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1404
1405    /**
1406     * Broadcast Action: Resources for a set of packages (which were
1407     * previously unavailable) are currently
1408     * available since the media on which they exist is available.
1409     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1410     * list of packages whose availability changed.
1411     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1412     * list of uids of packages whose availability changed.
1413     * Note that the
1414     * packages in this list do <em>not</em> receive this broadcast.
1415     * The specified set of packages are now available on the system.
1416     * <p>Includes the following extras:
1417     * <ul>
1418     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1419     * whose resources(were previously unavailable) are currently available.
1420     * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the
1421     * packages whose resources(were previously unavailable)
1422     * are  currently available.
1423     * </ul>
1424     *
1425     * <p class="note">This is a protected intent that can only be sent
1426     * by the system.
1427     */
1428    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1429    public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE =
1430        "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
1431
1432    /**
1433     * Broadcast Action: Resources for a set of packages are currently
1434     * unavailable since the media on which they exist is unavailable.
1435     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1436     * list of packages whose availability changed.
1437     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1438     * list of uids of packages whose availability changed.
1439     * The specified set of packages can no longer be
1440     * launched and are practically unavailable on the system.
1441     * <p>Inclues the following extras:
1442     * <ul>
1443     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1444     * whose resources are no longer available.
1445     * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages
1446     * whose resources are no longer available.
1447     * </ul>
1448     *
1449     * <p class="note">This is a protected intent that can only be sent
1450     * by the system.
1451     */
1452    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1453    public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE =
1454        "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE";
1455
1456    /**
1457     * Broadcast Action:  The current system wallpaper has changed.  See
1458     * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
1459     */
1460    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1461    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1462    /**
1463     * Broadcast Action: The current device {@link android.content.res.Configuration}
1464     * (orientation, locale, etc) has changed.  When such a change happens, the
1465     * UIs (view hierarchy) will need to be rebuilt based on this new
1466     * information; for the most part, applications don't need to worry about
1467     * this, because the system will take care of stopping and restarting the
1468     * application to make sure it sees the new changes.  Some system code that
1469     * can not be restarted will need to watch for this action and handle it
1470     * appropriately.
1471     *
1472     * <p class="note">
1473     * You can <em>not</em> receive this through components declared
1474     * in manifests, only by explicitly registering for it with
1475     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1476     * Context.registerReceiver()}.
1477     *
1478     * <p class="note">This is a protected intent that can only be sent
1479     * by the system.
1480     *
1481     * @see android.content.res.Configuration
1482     */
1483    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1484    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1485    /**
1486     * Broadcast Action: The current device's locale has changed.
1487     *
1488     * <p class="note">This is a protected intent that can only be sent
1489     * by the system.
1490     */
1491    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1492    public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
1493    /**
1494     * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
1495     * charging state, level, and other information about the battery.
1496     * See {@link android.os.BatteryManager} for documentation on the
1497     * contents of the Intent.
1498     *
1499     * <p class="note">
1500     * You can <em>not</em> receive this through components declared
1501     * in manifests, only by explicitly registering for it with
1502     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1503     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1504     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1505     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1506     * broadcasts that are sent and can be received through manifest
1507     * receivers.
1508     *
1509     * <p class="note">This is a protected intent that can only be sent
1510     * by the system.
1511     */
1512    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1513    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1514    /**
1515     * Broadcast Action:  Indicates low battery condition on the device.
1516     * This broadcast corresponds to the "Low battery warning" system dialog.
1517     *
1518     * <p class="note">This is a protected intent that can only be sent
1519     * by the system.
1520     */
1521    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1522    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1523    /**
1524     * Broadcast Action:  Indicates the battery is now okay after being low.
1525     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1526     * gone back up to an okay state.
1527     *
1528     * <p class="note">This is a protected intent that can only be sent
1529     * by the system.
1530     */
1531    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1532    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1533    /**
1534     * Broadcast Action:  External power has been connected to the device.
1535     * This is intended for applications that wish to register specifically to this notification.
1536     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1537     * stay active to receive this notification.  This action can be used to implement actions
1538     * that wait until power is available to trigger.
1539     *
1540     * <p class="note">This is a protected intent that can only be sent
1541     * by the system.
1542     */
1543    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1544    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1545    /**
1546     * Broadcast Action:  External power has been removed from the device.
1547     * This is intended for applications that wish to register specifically to this notification.
1548     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1549     * stay active to receive this notification.  This action can be used to implement actions
1550     * that wait until power is available to trigger.
1551     *
1552     * <p class="note">This is a protected intent that can only be sent
1553     * by the system.
1554     */
1555    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1556    public static final String ACTION_POWER_DISCONNECTED =
1557            "android.intent.action.ACTION_POWER_DISCONNECTED";
1558    /**
1559     * Broadcast Action:  Device is shutting down.
1560     * This is broadcast when the device is being shut down (completely turned
1561     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1562     * will proceed and all unsaved data lost.  Apps will not normally need
1563     * to handle this, since the foreground activity will be paused as well.
1564     *
1565     * <p class="note">This is a protected intent that can only be sent
1566     * by the system.
1567     */
1568    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1569    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1570    /**
1571     * Activity Action:  Start this activity to request system shutdown.
1572     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1573     * to request confirmation from the user before shutting down.
1574     *
1575     * <p class="note">This is a protected intent that can only be sent
1576     * by the system.
1577     *
1578     * {@hide}
1579     */
1580    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1581    /**
1582     * Broadcast Action:  A sticky broadcast that indicates low memory
1583     * condition on the device
1584     *
1585     * <p class="note">This is a protected intent that can only be sent
1586     * by the system.
1587     */
1588    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1589    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1590    /**
1591     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1592     *
1593     * <p class="note">This is a protected intent that can only be sent
1594     * by the system.
1595     */
1596    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1597    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1598    /**
1599     * Broadcast Action:  A sticky broadcast that indicates a memory full
1600     * condition on the device. This is intended for activities that want
1601     * to be able to fill the data partition completely, leaving only
1602     * enough free space to prevent system-wide SQLite failures.
1603     *
1604     * <p class="note">This is a protected intent that can only be sent
1605     * by the system.
1606     *
1607     * {@hide}
1608     */
1609    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1610    public static final String ACTION_DEVICE_STORAGE_FULL = "android.intent.action.DEVICE_STORAGE_FULL";
1611    /**
1612     * Broadcast Action:  Indicates memory full condition on the device
1613     * no longer exists.
1614     *
1615     * <p class="note">This is a protected intent that can only be sent
1616     * by the system.
1617     *
1618     * {@hide}
1619     */
1620    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1621    public static final String ACTION_DEVICE_STORAGE_NOT_FULL = "android.intent.action.DEVICE_STORAGE_NOT_FULL";
1622    /**
1623     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1624     * and package management should be started.
1625     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1626     * notification.
1627     */
1628    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1629    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1630    /**
1631     * Broadcast Action:  The device has entered USB Mass Storage mode.
1632     * This is used mainly for the USB Settings panel.
1633     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1634     * when the SD card file system is mounted or unmounted
1635     */
1636    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1637    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1638
1639    /**
1640     * Broadcast Action:  The device has exited USB Mass Storage mode.
1641     * This is used mainly for the USB Settings panel.
1642     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1643     * when the SD card file system is mounted or unmounted
1644     */
1645    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1646    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1647
1648    /**
1649     * Broadcast Action:  External media has been removed.
1650     * The path to the mount point for the removed media is contained in the Intent.mData field.
1651     */
1652    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1653    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1654
1655    /**
1656     * Broadcast Action:  External media is present, but not mounted at its mount point.
1657     * The path to the mount point for the removed media is contained in the Intent.mData field.
1658     */
1659    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1660    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1661
1662    /**
1663     * Broadcast Action:  External media is present, and being disk-checked
1664     * The path to the mount point for the checking media is contained in the Intent.mData field.
1665     */
1666    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1667    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1668
1669    /**
1670     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1671     * The path to the mount point for the checking media is contained in the Intent.mData field.
1672     */
1673    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1674    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1675
1676    /**
1677     * Broadcast Action:  External media is present and mounted at its mount point.
1678     * The path to the mount point for the removed media is contained in the Intent.mData field.
1679     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1680     * media was mounted read only.
1681     */
1682    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1683    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1684
1685    /**
1686     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1687     * The path to the mount point for the shared media is contained in the Intent.mData field.
1688     */
1689    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1690    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1691
1692    /**
1693     * Broadcast Action:  External media is no longer being shared via USB mass storage.
1694     * The path to the mount point for the previously shared media is contained in the Intent.mData field.
1695     *
1696     * @hide
1697     */
1698    public static final String ACTION_MEDIA_UNSHARED = "android.intent.action.MEDIA_UNSHARED";
1699
1700    /**
1701     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1702     * The path to the mount point for the removed media is contained in the Intent.mData field.
1703     */
1704    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1705    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1706
1707    /**
1708     * Broadcast Action:  External media is present but cannot be mounted.
1709     * The path to the mount point for the removed media is contained in the Intent.mData field.
1710     */
1711    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1712    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1713
1714   /**
1715     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1716     * Applications should close all files they have open within the mount point when they receive this intent.
1717     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1718     */
1719    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1720    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1721
1722    /**
1723     * Broadcast Action:  The media scanner has started scanning a directory.
1724     * The path to the directory being scanned is contained in the Intent.mData field.
1725     */
1726    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1727    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1728
1729   /**
1730     * Broadcast Action:  The media scanner has finished scanning a directory.
1731     * The path to the scanned directory is contained in the Intent.mData field.
1732     */
1733    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1734    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1735
1736   /**
1737     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1738     * The path to the file is contained in the Intent.mData field.
1739     */
1740    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1741    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1742
1743   /**
1744     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1745     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1746     * caused the broadcast.
1747     */
1748    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1749    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1750
1751    /**
1752     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1753     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1754     * caused the broadcast.
1755     */
1756    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1757    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1758
1759    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1760    // location; they are not general-purpose actions.
1761
1762    /**
1763     * Broadcast Action: An GTalk connection has been established.
1764     */
1765    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1766    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1767            "android.intent.action.GTALK_CONNECTED";
1768
1769    /**
1770     * Broadcast Action: An GTalk connection has been disconnected.
1771     */
1772    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1773    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1774            "android.intent.action.GTALK_DISCONNECTED";
1775
1776    /**
1777     * Broadcast Action: An input method has been changed.
1778     */
1779    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1780    public static final String ACTION_INPUT_METHOD_CHANGED =
1781            "android.intent.action.INPUT_METHOD_CHANGED";
1782
1783    /**
1784     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1785     * more radios have been turned off or on. The intent will have the following extra value:</p>
1786     * <ul>
1787     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1788     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1789     *   turned off</li>
1790     * </ul>
1791     *
1792     * <p class="note">This is a protected intent that can only be sent
1793     * by the system.
1794     */
1795    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1796    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1797
1798    /**
1799     * Broadcast Action: Some content providers have parts of their namespace
1800     * where they publish new events or items that the user may be especially
1801     * interested in. For these things, they may broadcast this action when the
1802     * set of interesting items change.
1803     *
1804     * For example, GmailProvider sends this notification when the set of unread
1805     * mail in the inbox changes.
1806     *
1807     * <p>The data of the intent identifies which part of which provider
1808     * changed. When queried through the content resolver, the data URI will
1809     * return the data set in question.
1810     *
1811     * <p>The intent will have the following extra values:
1812     * <ul>
1813     *   <li><em>count</em> - The number of items in the data set. This is the
1814     *       same as the number of items in the cursor returned by querying the
1815     *       data URI. </li>
1816     * </ul>
1817     *
1818     * This intent will be sent at boot (if the count is non-zero) and when the
1819     * data set changes. It is possible for the data set to change without the
1820     * count changing (for example, if a new unread message arrives in the same
1821     * sync operation in which a message is archived). The phone should still
1822     * ring/vibrate/etc as normal in this case.
1823     */
1824    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1825    public static final String ACTION_PROVIDER_CHANGED =
1826            "android.intent.action.PROVIDER_CHANGED";
1827
1828    /**
1829     * Broadcast Action: Wired Headset plugged in or unplugged.
1830     *
1831     * <p>The intent will have the following extra values:
1832     * <ul>
1833     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1834     *   <li><em>name</em> - Headset type, human readable string </li>
1835     *   <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
1836     * </ul>
1837     * </ul>
1838     */
1839    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1840    public static final String ACTION_HEADSET_PLUG =
1841            "android.intent.action.HEADSET_PLUG";
1842
1843    /**
1844     * Broadcast Action: An analog audio speaker/headset plugged in or unplugged.
1845     *
1846     * <p>The intent will have the following extra values:
1847     * <ul>
1848     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1849     *   <li><em>name</em> - Headset type, human readable string </li>
1850     * </ul>
1851     * </ul>
1852     * @hide
1853     */
1854    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1855    public static final String ACTION_USB_ANLG_HEADSET_PLUG =
1856            "android.intent.action.USB_ANLG_HEADSET_PLUG";
1857
1858    /**
1859     * Broadcast Action: An analog audio speaker/headset plugged in or unplugged.
1860     *
1861     * <p>The intent will have the following extra values:
1862     * <ul>
1863     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1864     *   <li><em>name</em> - Headset type, human readable string </li>
1865     * </ul>
1866     * </ul>
1867     * @hide
1868     */
1869    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1870    public static final String ACTION_USB_DGTL_HEADSET_PLUG =
1871            "android.intent.action.USB_DGTL_HEADSET_PLUG";
1872
1873    /**
1874     * Broadcast Action: A HMDI cable was plugged or unplugged
1875     *
1876     * <p>The intent will have the following extra values:
1877     * <ul>
1878     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1879     *   <li><em>name</em> - HDMI cable, human readable string </li>
1880     * </ul>
1881     * </ul>
1882     * @hide
1883     */
1884    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1885    public static final String ACTION_HDMI_AUDIO_PLUG =
1886            "android.intent.action.HDMI_AUDIO_PLUG";
1887
1888    /**
1889     * Broadcast Action: An outgoing call is about to be placed.
1890     *
1891     * <p>The Intent will have the following extra value:
1892     * <ul>
1893     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1894     *       the phone number originally intended to be dialed.</li>
1895     * </ul>
1896     * <p>Once the broadcast is finished, the resultData is used as the actual
1897     * number to call.  If  <code>null</code>, no call will be placed.</p>
1898     * <p>It is perfectly acceptable for multiple receivers to process the
1899     * outgoing call in turn: for example, a parental control application
1900     * might verify that the user is authorized to place the call at that
1901     * time, then a number-rewriting application might add an area code if
1902     * one was not specified.</p>
1903     * <p>For consistency, any receiver whose purpose is to prohibit phone
1904     * calls should have a priority of 0, to ensure it will see the final
1905     * phone number to be dialed.
1906     * Any receiver whose purpose is to rewrite phone numbers to be called
1907     * should have a positive priority.
1908     * Negative priorities are reserved for the system for this broadcast;
1909     * using them may cause problems.</p>
1910     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1911     * abort the broadcast.</p>
1912     * <p>Emergency calls cannot be intercepted using this mechanism, and
1913     * other calls cannot be modified to call emergency numbers using this
1914     * mechanism.
1915     * <p>You must hold the
1916     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1917     * permission to receive this Intent.</p>
1918     *
1919     * <p class="note">This is a protected intent that can only be sent
1920     * by the system.
1921     */
1922    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1923    public static final String ACTION_NEW_OUTGOING_CALL =
1924            "android.intent.action.NEW_OUTGOING_CALL";
1925
1926    /**
1927     * Broadcast Action: Have the device reboot.  This is only for use by
1928     * system code.
1929     *
1930     * <p class="note">This is a protected intent that can only be sent
1931     * by the system.
1932     */
1933    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1934    public static final String ACTION_REBOOT =
1935            "android.intent.action.REBOOT";
1936
1937    /**
1938     * Broadcast Action:  A sticky broadcast for changes in the physical
1939     * docking state of the device.
1940     *
1941     * <p>The intent will have the following extra values:
1942     * <ul>
1943     *   <li><em>{@link #EXTRA_DOCK_STATE}</em> - the current dock
1944     *       state, indicating which dock the device is physically in.</li>
1945     * </ul>
1946     * <p>This is intended for monitoring the current physical dock state.
1947     * See {@link android.app.UiModeManager} for the normal API dealing with
1948     * dock mode changes.
1949     */
1950    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1951    public static final String ACTION_DOCK_EVENT =
1952            "android.intent.action.DOCK_EVENT";
1953
1954    /**
1955     * Broadcast Action: a remote intent is to be broadcasted.
1956     *
1957     * A remote intent is used for remote RPC between devices. The remote intent
1958     * is serialized and sent from one device to another device. The receiving
1959     * device parses the remote intent and broadcasts it. Note that anyone can
1960     * broadcast a remote intent. However, if the intent receiver of the remote intent
1961     * does not trust intent broadcasts from arbitrary intent senders, it should require
1962     * the sender to hold certain permissions so only trusted sender's broadcast will be
1963     * let through.
1964     * @hide
1965     */
1966    public static final String ACTION_REMOTE_INTENT =
1967            "com.google.android.c2dm.intent.RECEIVE";
1968
1969    /**
1970     * Broadcast Action: hook for permforming cleanup after a system update.
1971     *
1972     * The broadcast is sent when the system is booting, before the
1973     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1974     * image.  A receiver for this should do its work and then disable itself
1975     * so that it does not get run again at the next boot.
1976     * @hide
1977     */
1978    public static final String ACTION_PRE_BOOT_COMPLETED =
1979            "android.intent.action.PRE_BOOT_COMPLETED";
1980
1981    // ---------------------------------------------------------------------
1982    // ---------------------------------------------------------------------
1983    // Standard intent categories (see addCategory()).
1984
1985    /**
1986     * Set if the activity should be an option for the default action
1987     * (center press) to perform on a piece of data.  Setting this will
1988     * hide from the user any activities without it set when performing an
1989     * action on some data.  Note that this is normal -not- set in the
1990     * Intent when initiating an action -- it is for use in intent filters
1991     * specified in packages.
1992     */
1993    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1994    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1995    /**
1996     * Activities that can be safely invoked from a browser must support this
1997     * category.  For example, if the user is viewing a web page or an e-mail
1998     * and clicks on a link in the text, the Intent generated execute that
1999     * link will require the BROWSABLE category, so that only activities
2000     * supporting this category will be considered as possible actions.  By
2001     * supporting this category, you are promising that there is nothing
2002     * damaging (without user intervention) that can happen by invoking any
2003     * matching Intent.
2004     */
2005    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2006    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
2007    /**
2008     * Set if the activity should be considered as an alternative action to
2009     * the data the user is currently viewing.  See also
2010     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
2011     * applies to the selection in a list of items.
2012     *
2013     * <p>Supporting this category means that you would like your activity to be
2014     * displayed in the set of alternative things the user can do, usually as
2015     * part of the current activity's options menu.  You will usually want to
2016     * include a specific label in the &lt;intent-filter&gt; of this action
2017     * describing to the user what it does.
2018     *
2019     * <p>The action of IntentFilter with this category is important in that it
2020     * describes the specific action the target will perform.  This generally
2021     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
2022     * a specific name such as "com.android.camera.action.CROP.  Only one
2023     * alternative of any particular action will be shown to the user, so using
2024     * a specific action like this makes sure that your alternative will be
2025     * displayed while also allowing other applications to provide their own
2026     * overrides of that particular action.
2027     */
2028    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2029    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
2030    /**
2031     * Set if the activity should be considered as an alternative selection
2032     * action to the data the user has currently selected.  This is like
2033     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
2034     * of items from which the user can select, giving them alternatives to the
2035     * default action that will be performed on it.
2036     */
2037    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2038    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
2039    /**
2040     * Intended to be used as a tab inside of an containing TabActivity.
2041     */
2042    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2043    public static final String CATEGORY_TAB = "android.intent.category.TAB";
2044    /**
2045     * Should be displayed in the top-level launcher.
2046     */
2047    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2048    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
2049    /**
2050     * Provides information about the package it is in; typically used if
2051     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
2052     * a front-door to the user without having to be shown in the all apps list.
2053     */
2054    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2055    public static final String CATEGORY_INFO = "android.intent.category.INFO";
2056    /**
2057     * This is the home activity, that is the first activity that is displayed
2058     * when the device boots.
2059     */
2060    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2061    public static final String CATEGORY_HOME = "android.intent.category.HOME";
2062    /**
2063     * This activity is a preference panel.
2064     */
2065    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2066    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
2067    /**
2068     * This activity is a development preference panel.
2069     */
2070    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2071    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
2072    /**
2073     * Capable of running inside a parent activity container.
2074     */
2075    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2076    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
2077    /**
2078     * This activity allows the user to browse and download new applications.
2079     */
2080    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2081    public static final String CATEGORY_APP_MARKET = "android.intent.category.APP_MARKET";
2082    /**
2083     * This activity may be exercised by the monkey or other automated test tools.
2084     */
2085    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2086    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
2087    /**
2088     * To be used as a test (not part of the normal user experience).
2089     */
2090    public static final String CATEGORY_TEST = "android.intent.category.TEST";
2091    /**
2092     * To be used as a unit test (run through the Test Harness).
2093     */
2094    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
2095    /**
2096     * To be used as an sample code example (not part of the normal user
2097     * experience).
2098     */
2099    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
2100    /**
2101     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
2102     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
2103     * when queried, though it is allowable for those columns to be blank.
2104     */
2105    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2106    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
2107
2108    /**
2109     * To be used as code under test for framework instrumentation tests.
2110     */
2111    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
2112            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
2113    /**
2114     * An activity to run when device is inserted into a car dock.
2115     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2116     * information, see {@link android.app.UiModeManager}.
2117     */
2118    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2119    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
2120    /**
2121     * An activity to run when device is inserted into a car dock.
2122     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2123     * information, see {@link android.app.UiModeManager}.
2124     */
2125    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2126    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
2127    /**
2128     * An activity to run when device is inserted into a analog (low end) dock.
2129     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2130     * information, see {@link android.app.UiModeManager}.
2131     */
2132    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2133    public static final String CATEGORY_LE_DESK_DOCK = "android.intent.category.LE_DESK_DOCK";
2134
2135    /**
2136     * An activity to run when device is inserted into a digital (high end) dock.
2137     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2138     * information, see {@link android.app.UiModeManager}.
2139     */
2140    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2141    public static final String CATEGORY_HE_DESK_DOCK = "android.intent.category.HE_DESK_DOCK";
2142
2143    /**
2144     * Used to indicate that the activity can be used in a car environment.
2145     */
2146    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2147    public static final String CATEGORY_CAR_MODE = "android.intent.category.CAR_MODE";
2148
2149    // ---------------------------------------------------------------------
2150    // ---------------------------------------------------------------------
2151    // Standard extra data keys.
2152
2153    /**
2154     * The initial data to place in a newly created record.  Use with
2155     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
2156     * fields as would be given to the underlying ContentProvider.insert()
2157     * call.
2158     */
2159    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
2160
2161    /**
2162     * A constant CharSequence that is associated with the Intent, used with
2163     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
2164     * this may be a styled CharSequence, so you must use
2165     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
2166     * retrieve it.
2167     */
2168    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
2169
2170    /**
2171     * A content: URI holding a stream of data associated with the Intent,
2172     * used with {@link #ACTION_SEND} to supply the data being sent.
2173     */
2174    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
2175
2176    /**
2177     * A String[] holding e-mail addresses that should be delivered to.
2178     */
2179    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
2180
2181    /**
2182     * A String[] holding e-mail addresses that should be carbon copied.
2183     */
2184    public static final String EXTRA_CC       = "android.intent.extra.CC";
2185
2186    /**
2187     * A String[] holding e-mail addresses that should be blind carbon copied.
2188     */
2189    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
2190
2191    /**
2192     * A constant string holding the desired subject line of a message.
2193     */
2194    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
2195
2196    /**
2197     * An Intent describing the choices you would like shown with
2198     * {@link #ACTION_PICK_ACTIVITY}.
2199     */
2200    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
2201
2202    /**
2203     * A CharSequence dialog title to provide to the user when used with a
2204     * {@link #ACTION_CHOOSER}.
2205     */
2206    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
2207
2208    /**
2209     * A Parcelable[] of {@link Intent} or
2210     * {@link android.content.pm.LabeledIntent} objects as set with
2211     * {@link #putExtra(String, Parcelable[])} of additional activities to place
2212     * a the front of the list of choices, when shown to the user with a
2213     * {@link #ACTION_CHOOSER}.
2214     */
2215    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
2216
2217    /**
2218     * A {@link android.view.KeyEvent} object containing the event that
2219     * triggered the creation of the Intent it is in.
2220     */
2221    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
2222
2223    /**
2224     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
2225     * before shutting down.
2226     *
2227     * {@hide}
2228     */
2229    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
2230
2231    /**
2232     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2233     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
2234     * of restarting the application.
2235     */
2236    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
2237
2238    /**
2239     * A String holding the phone number originally entered in
2240     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
2241     * number to call in a {@link android.content.Intent#ACTION_CALL}.
2242     */
2243    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
2244
2245    /**
2246     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
2247     * intents to supply the uid the package had been assigned.  Also an optional
2248     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2249     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2250     * purpose.
2251     */
2252    public static final String EXTRA_UID = "android.intent.extra.UID";
2253
2254    /**
2255     * @hide String array of package names.
2256     */
2257    public static final String EXTRA_PACKAGES = "android.intent.extra.PACKAGES";
2258
2259    /**
2260     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2261     * intents to indicate whether this represents a full uninstall (removing
2262     * both the code and its data) or a partial uninstall (leaving its data,
2263     * implying that this is an update).
2264     */
2265    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2266
2267    /**
2268     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2269     * intents to indicate that this is a replacement of the package, so this
2270     * broadcast will immediately be followed by an add broadcast for a
2271     * different version of the same package.
2272     */
2273    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2274
2275    /**
2276     * Used as an int extra field in {@link android.app.AlarmManager} intents
2277     * to tell the application being invoked how many pending alarms are being
2278     * delievered with the intent.  For one-shot alarms this will always be 1.
2279     * For recurring alarms, this might be greater than 1 if the device was
2280     * asleep or powered off at the time an earlier alarm would have been
2281     * delivered.
2282     */
2283    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2284
2285    /**
2286     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2287     * intents to request the dock state.  Possible values are
2288     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2289     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2290     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}, or
2291     * {@link android.content.Intent#EXTRA_DOCK_STATE_LE_DESK}, or
2292     * {@link android.content.Intent#EXTRA_DOCK_STATE_HE_DESK}.
2293     */
2294    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2295
2296    /**
2297     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2298     * to represent that the phone is not in any dock.
2299     */
2300    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2301
2302    /**
2303     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2304     * to represent that the phone is in a desk dock.
2305     */
2306    public static final int EXTRA_DOCK_STATE_DESK = 1;
2307
2308    /**
2309     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2310     * to represent that the phone is in a car dock.
2311     */
2312    public static final int EXTRA_DOCK_STATE_CAR = 2;
2313
2314    /**
2315     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2316     * to represent that the phone is in a analog (low end) dock.
2317     */
2318    public static final int EXTRA_DOCK_STATE_LE_DESK = 3;
2319
2320    /**
2321     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2322     * to represent that the phone is in a digital (high end) dock.
2323     */
2324    public static final int EXTRA_DOCK_STATE_HE_DESK = 4;
2325
2326    /**
2327     * Boolean that can be supplied as meta-data with a dock activity, to
2328     * indicate that the dock should take over the home key when it is active.
2329     */
2330    public static final String METADATA_DOCK_HOME = "android.dock_home";
2331
2332    /**
2333     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2334     * the bug report.
2335     *
2336     * @hide
2337     */
2338    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2339
2340    /**
2341     * Used as a string extra field when sending an intent to PackageInstaller to install a
2342     * package. Specifies the installer package name; this package will receive the
2343     * {@link #ACTION_APP_ERROR} intent.
2344     *
2345     * @hide
2346     */
2347    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2348            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2349
2350    /**
2351     * Used in the extra field in the remote intent. It's astring token passed with the
2352     * remote intent.
2353     */
2354    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2355            "android.intent.extra.remote_intent_token";
2356
2357    /**
2358     * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
2359     * will contain only the first name in the list.
2360     */
2361    @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
2362            "android.intent.extra.changed_component_name";
2363
2364    /**
2365     * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED},
2366     * and contains a string array of all of the components that have changed.
2367     */
2368    public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
2369            "android.intent.extra.changed_component_name_list";
2370
2371    /**
2372     * This field is part of
2373     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
2374     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
2375     * and contains a string array of all of the components that have changed.
2376     */
2377    public static final String EXTRA_CHANGED_PACKAGE_LIST =
2378            "android.intent.extra.changed_package_list";
2379
2380    /**
2381     * This field is part of
2382     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
2383     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
2384     * and contains an integer array of uids of all of the components
2385     * that have changed.
2386     */
2387    public static final String EXTRA_CHANGED_UID_LIST =
2388            "android.intent.extra.changed_uid_list";
2389
2390    /**
2391     * @hide
2392     * Magic extra system code can use when binding, to give a label for
2393     * who it is that has bound to a service.  This is an integer giving
2394     * a framework string resource that can be displayed to the user.
2395     */
2396    public static final String EXTRA_CLIENT_LABEL =
2397            "android.intent.extra.client_label";
2398
2399    /**
2400     * @hide
2401     * Magic extra system code can use when binding, to give a PendingIntent object
2402     * that can be launched for the user to disable the system's use of this
2403     * service.
2404     */
2405    public static final String EXTRA_CLIENT_INTENT =
2406            "android.intent.extra.client_intent";
2407
2408    /**
2409     * Used to indicate that a {@link #ACTION_GET_CONTENT} intent should only return
2410     * data that is on the local device.  This is a boolean extra; the default
2411     * is false.  If true, an implementation of ACTION_GET_CONTENT should only allow
2412     * the user to select media that is already on the device, not requiring it
2413     * be downloaded from a remote service when opened.  Another way to look
2414     * at it is that such content should generally have a "_data" column to the
2415     * path of the content on local external storage.
2416     */
2417    public static final String EXTRA_LOCAL_ONLY =
2418        "android.intent.extra.LOCAL_ONLY";
2419
2420    // ---------------------------------------------------------------------
2421    // ---------------------------------------------------------------------
2422    // Intent flags (see mFlags variable).
2423
2424    /**
2425     * If set, the recipient of this Intent will be granted permission to
2426     * perform read operations on the Uri in the Intent's data.
2427     */
2428    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2429    /**
2430     * If set, the recipient of this Intent will be granted permission to
2431     * perform write operations on the Uri in the Intent's data.
2432     */
2433    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2434    /**
2435     * Can be set by the caller to indicate that this Intent is coming from
2436     * a background operation, not from direct user interaction.
2437     */
2438    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2439    /**
2440     * A flag you can enable for debugging: when set, log messages will be
2441     * printed during the resolution of this intent to show you what has
2442     * been found to create the final resolved list.
2443     */
2444    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2445
2446    /**
2447     * If set, the new activity is not kept in the history stack.  As soon as
2448     * the user navigates away from it, the activity is finished.  This may also
2449     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2450     * noHistory} attribute.
2451     */
2452    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2453    /**
2454     * If set, the activity will not be launched if it is already running
2455     * at the top of the history stack.
2456     */
2457    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2458    /**
2459     * If set, this activity will become the start of a new task on this
2460     * history stack.  A task (from the activity that started it to the
2461     * next task activity) defines an atomic group of activities that the
2462     * user can move to.  Tasks can be moved to the foreground and background;
2463     * all of the activities inside of a particular task always remain in
2464     * the same order.  See
2465     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
2466     * Stack</a> for more information about tasks.
2467     *
2468     * <p>This flag is generally used by activities that want
2469     * to present a "launcher" style behavior: they give the user a list of
2470     * separate things that can be done, which otherwise run completely
2471     * independently of the activity launching them.
2472     *
2473     * <p>When using this flag, if a task is already running for the activity
2474     * you are now starting, then a new activity will not be started; instead,
2475     * the current task will simply be brought to the front of the screen with
2476     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2477     * to disable this behavior.
2478     *
2479     * <p>This flag can not be used when the caller is requesting a result from
2480     * the activity being launched.
2481     */
2482    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2483    /**
2484     * <strong>Do not use this flag unless you are implementing your own
2485     * top-level application launcher.</strong>  Used in conjunction with
2486     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2487     * behavior of bringing an existing task to the foreground.  When set,
2488     * a new task is <em>always</em> started to host the Activity for the
2489     * Intent, regardless of whether there is already an existing task running
2490     * the same thing.
2491     *
2492     * <p><strong>Because the default system does not include graphical task management,
2493     * you should not use this flag unless you provide some way for a user to
2494     * return back to the tasks you have launched.</strong>
2495     *
2496     * <p>This flag is ignored if
2497     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2498     *
2499     * <p>See
2500     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
2501     * Stack</a> for more information about tasks.
2502     */
2503    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2504    /**
2505     * If set, and the activity being launched is already running in the
2506     * current task, then instead of launching a new instance of that activity,
2507     * all of the other activities on top of it will be closed and this Intent
2508     * will be delivered to the (now on top) old activity as a new Intent.
2509     *
2510     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2511     * If D calls startActivity() with an Intent that resolves to the component
2512     * of activity B, then C and D will be finished and B receive the given
2513     * Intent, resulting in the stack now being: A, B.
2514     *
2515     * <p>The currently running instance of activity B in the above example will
2516     * either receive the new intent you are starting here in its
2517     * onNewIntent() method, or be itself finished and restarted with the
2518     * new intent.  If it has declared its launch mode to be "multiple" (the
2519     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2520     * the same intent, then it will be finished and re-created; for all other
2521     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2522     * Intent will be delivered to the current instance's onNewIntent().
2523     *
2524     * <p>This launch mode can also be used to good effect in conjunction with
2525     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2526     * of a task, it will bring any currently running instance of that task
2527     * to the foreground, and then clear it to its root state.  This is
2528     * especially useful, for example, when launching an activity from the
2529     * notification manager.
2530     *
2531     * <p>See
2532     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
2533     * Stack</a> for more information about tasks.
2534     */
2535    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2536    /**
2537     * If set and this intent is being used to launch a new activity from an
2538     * existing one, then the reply target of the existing activity will be
2539     * transfered to the new activity.  This way the new activity can call
2540     * {@link android.app.Activity#setResult} and have that result sent back to
2541     * the reply target of the original activity.
2542     */
2543    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2544    /**
2545     * If set and this intent is being used to launch a new activity from an
2546     * existing one, the current activity will not be counted as the top
2547     * activity for deciding whether the new intent should be delivered to
2548     * the top instead of starting a new one.  The previous activity will
2549     * be used as the top, with the assumption being that the current activity
2550     * will finish itself immediately.
2551     */
2552    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2553    /**
2554     * If set, the new activity is not kept in the list of recently launched
2555     * activities.
2556     */
2557    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2558    /**
2559     * This flag is not normally set by application code, but set for you by
2560     * the system as described in the
2561     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2562     * launchMode} documentation for the singleTask mode.
2563     */
2564    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2565    /**
2566     * If set, and this activity is either being started in a new task or
2567     * bringing to the top an existing task, then it will be launched as
2568     * the front door of the task.  This will result in the application of
2569     * any affinities needed to have that task in the proper state (either
2570     * moving activities to or from it), or simply resetting that task to
2571     * its initial state if needed.
2572     */
2573    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2574    /**
2575     * This flag is not normally set by application code, but set for you by
2576     * the system if this activity is being launched from history
2577     * (longpress home key).
2578     */
2579    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2580    /**
2581     * If set, this marks a point in the task's activity stack that should
2582     * be cleared when the task is reset.  That is, the next time the task
2583     * is brought to the foreground with
2584     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2585     * the user re-launching it from home), this activity and all on top of
2586     * it will be finished so that the user does not return to them, but
2587     * instead returns to whatever activity preceeded it.
2588     *
2589     * <p>This is useful for cases where you have a logical break in your
2590     * application.  For example, an e-mail application may have a command
2591     * to view an attachment, which launches an image view activity to
2592     * display it.  This activity should be part of the e-mail application's
2593     * task, since it is a part of the task the user is involved in.  However,
2594     * if the user leaves that task, and later selects the e-mail app from
2595     * home, we may like them to return to the conversation they were
2596     * viewing, not the picture attachment, since that is confusing.  By
2597     * setting this flag when launching the image viewer, that viewer and
2598     * any activities it starts will be removed the next time the user returns
2599     * to mail.
2600     */
2601    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2602    /**
2603     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2604     * callback from occurring on the current frontmost activity before it is
2605     * paused as the newly-started activity is brought to the front.
2606     *
2607     * <p>Typically, an activity can rely on that callback to indicate that an
2608     * explicit user action has caused their activity to be moved out of the
2609     * foreground. The callback marks an appropriate point in the activity's
2610     * lifecycle for it to dismiss any notifications that it intends to display
2611     * "until the user has seen them," such as a blinking LED.
2612     *
2613     * <p>If an activity is ever started via any non-user-driven events such as
2614     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2615     * Context#startActivity Context.startActivity}, ensuring that the pausing
2616     * activity does not think the user has acknowledged its notification.
2617     */
2618    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2619    /**
2620     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2621     * this flag will cause the launched activity to be brought to the front of its
2622     * task's history stack if it is already running.
2623     *
2624     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2625     * If D calls startActivity() with an Intent that resolves to the component
2626     * of activity B, then B will be brought to the front of the history stack,
2627     * with this resulting order:  A, C, D, B.
2628     *
2629     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2630     * specified.
2631     */
2632    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2633    /**
2634     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2635     * this flag will prevent the system from applying an activity transition
2636     * animation to go to the next activity state.  This doesn't mean an
2637     * animation will never run -- if another activity change happens that doesn't
2638     * specify this flag before the activity started here is displayed, then
2639     * that transition will be used.  This flag can be put to good use
2640     * when you are going to do a series of activity operations but the
2641     * animation seen by the user shouldn't be driven by the first activity
2642     * change but rather a later one.
2643     */
2644    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
2645    /**
2646     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2647     * this flag will cause any existing task that would be associated with the
2648     * activity to be cleared before the activity is started.  That is, the activity
2649     * becomes the new root of an otherwise empty task, and any old activities
2650     * are finished.  This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
2651     */
2652    public static final int FLAG_ACTIVITY_CLEAR_TASK = 0X00008000;
2653    /**
2654     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2655     * this flag will cause a newly launching task to be placed on top of the current
2656     * home activity task (if there is one).  That is, pressing back from the task
2657     * will always return the user to home even if that was not the last activity they
2658     * saw.   This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
2659     */
2660    public static final int FLAG_ACTIVITY_TASK_ON_HOME = 0X00004000;
2661    /**
2662     * If set, when sending a broadcast only registered receivers will be
2663     * called -- no BroadcastReceiver components will be launched.
2664     */
2665    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2666    /**
2667     * If set, when sending a broadcast the new broadcast will replace
2668     * any existing pending broadcast that matches it.  Matching is defined
2669     * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning
2670     * true for the intents of the two broadcasts.  When a match is found,
2671     * the new broadcast (and receivers associated with it) will replace the
2672     * existing one in the pending broadcast list, remaining at the same
2673     * position in the list.
2674     *
2675     * <p>This flag is most typically used with sticky broadcasts, which
2676     * only care about delivering the most recent values of the broadcast
2677     * to their receivers.
2678     */
2679    public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
2680    /**
2681     * If set, when sending a broadcast <i>before boot has completed</i> only
2682     * registered receivers will be called -- no BroadcastReceiver components
2683     * will be launched.  Sticky intent state will be recorded properly even
2684     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2685     * is specified in the broadcast intent, this flag is unnecessary.
2686     *
2687     * <p>This flag is only for use by system sevices as a convenience to
2688     * avoid having to implement a more complex mechanism around detection
2689     * of boot completion.
2690     *
2691     * @hide
2692     */
2693    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x10000000;
2694    /**
2695     * Set when this broadcast is for a boot upgrade, a special mode that
2696     * allows the broadcast to be sent before the system is ready and launches
2697     * the app process with no providers running in it.
2698     * @hide
2699     */
2700    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x08000000;
2701
2702    /**
2703     * @hide Flags that can't be changed with PendingIntent.
2704     */
2705    public static final int IMMUTABLE_FLAGS =
2706            FLAG_GRANT_READ_URI_PERMISSION
2707            | FLAG_GRANT_WRITE_URI_PERMISSION;
2708
2709    // ---------------------------------------------------------------------
2710    // ---------------------------------------------------------------------
2711    // toUri() and parseUri() options.
2712
2713    /**
2714     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2715     * always has the "intent:" scheme.  This syntax can be used when you want
2716     * to later disambiguate between URIs that are intended to describe an
2717     * Intent vs. all others that should be treated as raw URIs.  When used
2718     * with {@link #parseUri}, any other scheme will result in a generic
2719     * VIEW action for that raw URI.
2720     */
2721    public static final int URI_INTENT_SCHEME = 1<<0;
2722
2723    // ---------------------------------------------------------------------
2724
2725    private String mAction;
2726    private Uri mData;
2727    private String mType;
2728    private String mPackage;
2729    private ComponentName mComponent;
2730    private int mFlags;
2731    private HashSet<String> mCategories;
2732    private Bundle mExtras;
2733    private Rect mSourceBounds;
2734
2735    // ---------------------------------------------------------------------
2736
2737    /**
2738     * Create an empty intent.
2739     */
2740    public Intent() {
2741    }
2742
2743    /**
2744     * Copy constructor.
2745     */
2746    public Intent(Intent o) {
2747        this.mAction = o.mAction;
2748        this.mData = o.mData;
2749        this.mType = o.mType;
2750        this.mPackage = o.mPackage;
2751        this.mComponent = o.mComponent;
2752        this.mFlags = o.mFlags;
2753        if (o.mCategories != null) {
2754            this.mCategories = new HashSet<String>(o.mCategories);
2755        }
2756        if (o.mExtras != null) {
2757            this.mExtras = new Bundle(o.mExtras);
2758        }
2759        if (o.mSourceBounds != null) {
2760            this.mSourceBounds = new Rect(o.mSourceBounds);
2761        }
2762    }
2763
2764    @Override
2765    public Object clone() {
2766        return new Intent(this);
2767    }
2768
2769    private Intent(Intent o, boolean all) {
2770        this.mAction = o.mAction;
2771        this.mData = o.mData;
2772        this.mType = o.mType;
2773        this.mPackage = o.mPackage;
2774        this.mComponent = o.mComponent;
2775        if (o.mCategories != null) {
2776            this.mCategories = new HashSet<String>(o.mCategories);
2777        }
2778    }
2779
2780    /**
2781     * Make a clone of only the parts of the Intent that are relevant for
2782     * filter matching: the action, data, type, component, and categories.
2783     */
2784    public Intent cloneFilter() {
2785        return new Intent(this, false);
2786    }
2787
2788    /**
2789     * Create an intent with a given action.  All other fields (data, type,
2790     * class) are null.  Note that the action <em>must</em> be in a
2791     * namespace because Intents are used globally in the system -- for
2792     * example the system VIEW action is android.intent.action.VIEW; an
2793     * application's custom action would be something like
2794     * com.google.app.myapp.CUSTOM_ACTION.
2795     *
2796     * @param action The Intent action, such as ACTION_VIEW.
2797     */
2798    public Intent(String action) {
2799        setAction(action);
2800    }
2801
2802    /**
2803     * Create an intent with a given action and for a given data url.  Note
2804     * that the action <em>must</em> be in a namespace because Intents are
2805     * used globally in the system -- for example the system VIEW action is
2806     * android.intent.action.VIEW; an application's custom action would be
2807     * something like com.google.app.myapp.CUSTOM_ACTION.
2808     *
2809     * <p><em>Note: scheme and host name matching in the Android framework is
2810     * case-sensitive, unlike the formal RFC.  As a result,
2811     * you should always ensure that you write your Uri with these elements
2812     * using lower case letters, and normalize any Uris you receive from
2813     * outside of Android to ensure the scheme and host is lower case.</em></p>
2814     *
2815     * @param action The Intent action, such as ACTION_VIEW.
2816     * @param uri The Intent data URI.
2817     */
2818    public Intent(String action, Uri uri) {
2819        setAction(action);
2820        mData = uri;
2821    }
2822
2823    /**
2824     * Create an intent for a specific component.  All other fields (action, data,
2825     * type, class) are null, though they can be modified later with explicit
2826     * calls.  This provides a convenient way to create an intent that is
2827     * intended to execute a hard-coded class name, rather than relying on the
2828     * system to find an appropriate class for you; see {@link #setComponent}
2829     * for more information on the repercussions of this.
2830     *
2831     * @param packageContext A Context of the application package implementing
2832     * this class.
2833     * @param cls The component class that is to be used for the intent.
2834     *
2835     * @see #setClass
2836     * @see #setComponent
2837     * @see #Intent(String, android.net.Uri , Context, Class)
2838     */
2839    public Intent(Context packageContext, Class<?> cls) {
2840        mComponent = new ComponentName(packageContext, cls);
2841    }
2842
2843    /**
2844     * Create an intent for a specific component with a specified action and data.
2845     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2846     * construct the Intent and then calling {@link #setClass} to set its
2847     * class.
2848     *
2849     * <p><em>Note: scheme and host name matching in the Android framework is
2850     * case-sensitive, unlike the formal RFC.  As a result,
2851     * you should always ensure that you write your Uri with these elements
2852     * using lower case letters, and normalize any Uris you receive from
2853     * outside of Android to ensure the scheme and host is lower case.</em></p>
2854     *
2855     * @param action The Intent action, such as ACTION_VIEW.
2856     * @param uri The Intent data URI.
2857     * @param packageContext A Context of the application package implementing
2858     * this class.
2859     * @param cls The component class that is to be used for the intent.
2860     *
2861     * @see #Intent(String, android.net.Uri)
2862     * @see #Intent(Context, Class)
2863     * @see #setClass
2864     * @see #setComponent
2865     */
2866    public Intent(String action, Uri uri,
2867            Context packageContext, Class<?> cls) {
2868        setAction(action);
2869        mData = uri;
2870        mComponent = new ComponentName(packageContext, cls);
2871    }
2872
2873    /**
2874     * Create an intent to launch the main (root) activity of a task.  This
2875     * is the Intent that is started when the application's is launched from
2876     * Home.  For anything else that wants to launch an application in the
2877     * same way, it is important that they use an Intent structured the same
2878     * way, and can use this function to ensure this is the case.
2879     *
2880     * <p>The returned Intent has the given Activity component as its explicit
2881     * component, {@link #ACTION_MAIN} as its action, and includes the
2882     * category {@link #CATEGORY_LAUNCHER}.  This does <em>not</em> have
2883     * {@link #FLAG_ACTIVITY_NEW_TASK} set, though typically you will want
2884     * to do that through {@link #addFlags(int)} on the returned Intent.
2885     *
2886     * @param mainActivity The main activity component that this Intent will
2887     * launch.
2888     * @return Returns a newly created Intent that can be used to launch the
2889     * activity as a main application entry.
2890     *
2891     * @see #setClass
2892     * @see #setComponent
2893     */
2894    public static Intent makeMainActivity(ComponentName mainActivity) {
2895        Intent intent = new Intent(ACTION_MAIN);
2896        intent.setComponent(mainActivity);
2897        intent.addCategory(CATEGORY_LAUNCHER);
2898        return intent;
2899    }
2900
2901    /**
2902     * Make an Intent that can be used to re-launch an application's task
2903     * in its base state.  This is like {@link #makeMainActivity(ComponentName)},
2904     * but also sets the flags {@link #FLAG_ACTIVITY_NEW_TASK} and
2905     * {@link #FLAG_ACTIVITY_CLEAR_TASK}.
2906     *
2907     * @param mainActivity The activity component that is the root of the
2908     * task; this is the activity that has been published in the application's
2909     * manifest as the main launcher icon.
2910     *
2911     * @return Returns a newly created Intent that can be used to relaunch the
2912     * activity's task in its root state.
2913     */
2914    public static Intent makeRestartActivityTask(ComponentName mainActivity) {
2915        Intent intent = makeMainActivity(mainActivity);
2916        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
2917                | Intent.FLAG_ACTIVITY_CLEAR_TASK);
2918        return intent;
2919    }
2920
2921    /**
2922     * Call {@link #parseUri} with 0 flags.
2923     * @deprecated Use {@link #parseUri} instead.
2924     */
2925    @Deprecated
2926    public static Intent getIntent(String uri) throws URISyntaxException {
2927        return parseUri(uri, 0);
2928    }
2929
2930    /**
2931     * Create an intent from a URI.  This URI may encode the action,
2932     * category, and other intent fields, if it was returned by
2933     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2934     * will be the entire URI and its action will be ACTION_VIEW.
2935     *
2936     * <p>The URI given here must not be relative -- that is, it must include
2937     * the scheme and full path.
2938     *
2939     * @param uri The URI to turn into an Intent.
2940     * @param flags Additional processing flags.  Either 0 or
2941     * {@link #URI_INTENT_SCHEME}.
2942     *
2943     * @return Intent The newly created Intent object.
2944     *
2945     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2946     * it bad (as parsed by the Uri class) or the Intent data within the
2947     * URI is invalid.
2948     *
2949     * @see #toUri
2950     */
2951    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2952        int i = 0;
2953        try {
2954            // Validate intent scheme for if requested.
2955            if ((flags&URI_INTENT_SCHEME) != 0) {
2956                if (!uri.startsWith("intent:")) {
2957                    Intent intent = new Intent(ACTION_VIEW);
2958                    try {
2959                        intent.setData(Uri.parse(uri));
2960                    } catch (IllegalArgumentException e) {
2961                        throw new URISyntaxException(uri, e.getMessage());
2962                    }
2963                    return intent;
2964                }
2965            }
2966
2967            // simple case
2968            i = uri.lastIndexOf("#");
2969            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2970
2971            // old format Intent URI
2972            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2973
2974            // new format
2975            Intent intent = new Intent(ACTION_VIEW);
2976
2977            // fetch data part, if present
2978            String data = i >= 0 ? uri.substring(0, i) : null;
2979            String scheme = null;
2980            i += "#Intent;".length();
2981
2982            // loop over contents of Intent, all name=value;
2983            while (!uri.startsWith("end", i)) {
2984                int eq = uri.indexOf('=', i);
2985                int semi = uri.indexOf(';', eq);
2986                String value = Uri.decode(uri.substring(eq + 1, semi));
2987
2988                // action
2989                if (uri.startsWith("action=", i)) {
2990                    intent.setAction(value);
2991                }
2992
2993                // categories
2994                else if (uri.startsWith("category=", i)) {
2995                    intent.addCategory(value);
2996                }
2997
2998                // type
2999                else if (uri.startsWith("type=", i)) {
3000                    intent.mType = value;
3001                }
3002
3003                // launch flags
3004                else if (uri.startsWith("launchFlags=", i)) {
3005                    intent.mFlags = Integer.decode(value).intValue();
3006                }
3007
3008                // package
3009                else if (uri.startsWith("package=", i)) {
3010                    intent.mPackage = value;
3011                }
3012
3013                // component
3014                else if (uri.startsWith("component=", i)) {
3015                    intent.mComponent = ComponentName.unflattenFromString(value);
3016                }
3017
3018                // scheme
3019                else if (uri.startsWith("scheme=", i)) {
3020                    scheme = value;
3021                }
3022
3023                // source bounds
3024                else if (uri.startsWith("sourceBounds=", i)) {
3025                    intent.mSourceBounds = Rect.unflattenFromString(value);
3026                }
3027
3028                // extra
3029                else {
3030                    String key = Uri.decode(uri.substring(i + 2, eq));
3031                    // create Bundle if it doesn't already exist
3032                    if (intent.mExtras == null) intent.mExtras = new Bundle();
3033                    Bundle b = intent.mExtras;
3034                    // add EXTRA
3035                    if      (uri.startsWith("S.", i)) b.putString(key, value);
3036                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
3037                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
3038                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
3039                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
3040                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
3041                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
3042                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
3043                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
3044                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
3045                }
3046
3047                // move to the next item
3048                i = semi + 1;
3049            }
3050
3051            if (data != null) {
3052                if (data.startsWith("intent:")) {
3053                    data = data.substring(7);
3054                    if (scheme != null) {
3055                        data = scheme + ':' + data;
3056                    }
3057                }
3058
3059                if (data.length() > 0) {
3060                    try {
3061                        intent.mData = Uri.parse(data);
3062                    } catch (IllegalArgumentException e) {
3063                        throw new URISyntaxException(uri, e.getMessage());
3064                    }
3065                }
3066            }
3067
3068            return intent;
3069
3070        } catch (IndexOutOfBoundsException e) {
3071            throw new URISyntaxException(uri, "illegal Intent URI format", i);
3072        }
3073    }
3074
3075    public static Intent getIntentOld(String uri) throws URISyntaxException {
3076        Intent intent;
3077
3078        int i = uri.lastIndexOf('#');
3079        if (i >= 0) {
3080            String action = null;
3081            final int intentFragmentStart = i;
3082            boolean isIntentFragment = false;
3083
3084            i++;
3085
3086            if (uri.regionMatches(i, "action(", 0, 7)) {
3087                isIntentFragment = true;
3088                i += 7;
3089                int j = uri.indexOf(')', i);
3090                action = uri.substring(i, j);
3091                i = j + 1;
3092            }
3093
3094            intent = new Intent(action);
3095
3096            if (uri.regionMatches(i, "categories(", 0, 11)) {
3097                isIntentFragment = true;
3098                i += 11;
3099                int j = uri.indexOf(')', i);
3100                while (i < j) {
3101                    int sep = uri.indexOf('!', i);
3102                    if (sep < 0) sep = j;
3103                    if (i < sep) {
3104                        intent.addCategory(uri.substring(i, sep));
3105                    }
3106                    i = sep + 1;
3107                }
3108                i = j + 1;
3109            }
3110
3111            if (uri.regionMatches(i, "type(", 0, 5)) {
3112                isIntentFragment = true;
3113                i += 5;
3114                int j = uri.indexOf(')', i);
3115                intent.mType = uri.substring(i, j);
3116                i = j + 1;
3117            }
3118
3119            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
3120                isIntentFragment = true;
3121                i += 12;
3122                int j = uri.indexOf(')', i);
3123                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
3124                i = j + 1;
3125            }
3126
3127            if (uri.regionMatches(i, "component(", 0, 10)) {
3128                isIntentFragment = true;
3129                i += 10;
3130                int j = uri.indexOf(')', i);
3131                int sep = uri.indexOf('!', i);
3132                if (sep >= 0 && sep < j) {
3133                    String pkg = uri.substring(i, sep);
3134                    String cls = uri.substring(sep + 1, j);
3135                    intent.mComponent = new ComponentName(pkg, cls);
3136                }
3137                i = j + 1;
3138            }
3139
3140            if (uri.regionMatches(i, "extras(", 0, 7)) {
3141                isIntentFragment = true;
3142                i += 7;
3143
3144                final int closeParen = uri.indexOf(')', i);
3145                if (closeParen == -1) throw new URISyntaxException(uri,
3146                        "EXTRA missing trailing ')'", i);
3147
3148                while (i < closeParen) {
3149                    // fetch the key value
3150                    int j = uri.indexOf('=', i);
3151                    if (j <= i + 1 || i >= closeParen) {
3152                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
3153                    }
3154                    char type = uri.charAt(i);
3155                    i++;
3156                    String key = uri.substring(i, j);
3157                    i = j + 1;
3158
3159                    // get type-value
3160                    j = uri.indexOf('!', i);
3161                    if (j == -1 || j >= closeParen) j = closeParen;
3162                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
3163                    String value = uri.substring(i, j);
3164                    i = j;
3165
3166                    // create Bundle if it doesn't already exist
3167                    if (intent.mExtras == null) intent.mExtras = new Bundle();
3168
3169                    // add item to bundle
3170                    try {
3171                        switch (type) {
3172                            case 'S':
3173                                intent.mExtras.putString(key, Uri.decode(value));
3174                                break;
3175                            case 'B':
3176                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
3177                                break;
3178                            case 'b':
3179                                intent.mExtras.putByte(key, Byte.parseByte(value));
3180                                break;
3181                            case 'c':
3182                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
3183                                break;
3184                            case 'd':
3185                                intent.mExtras.putDouble(key, Double.parseDouble(value));
3186                                break;
3187                            case 'f':
3188                                intent.mExtras.putFloat(key, Float.parseFloat(value));
3189                                break;
3190                            case 'i':
3191                                intent.mExtras.putInt(key, Integer.parseInt(value));
3192                                break;
3193                            case 'l':
3194                                intent.mExtras.putLong(key, Long.parseLong(value));
3195                                break;
3196                            case 's':
3197                                intent.mExtras.putShort(key, Short.parseShort(value));
3198                                break;
3199                            default:
3200                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
3201                        }
3202                    } catch (NumberFormatException e) {
3203                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
3204                    }
3205
3206                    char ch = uri.charAt(i);
3207                    if (ch == ')') break;
3208                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
3209                    i++;
3210                }
3211            }
3212
3213            if (isIntentFragment) {
3214                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
3215            } else {
3216                intent.mData = Uri.parse(uri);
3217            }
3218
3219            if (intent.mAction == null) {
3220                // By default, if no action is specified, then use VIEW.
3221                intent.mAction = ACTION_VIEW;
3222            }
3223
3224        } else {
3225            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
3226        }
3227
3228        return intent;
3229    }
3230
3231    /**
3232     * Retrieve the general action to be performed, such as
3233     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
3234     * the information in the intent should be interpreted -- most importantly,
3235     * what to do with the data returned by {@link #getData}.
3236     *
3237     * @return The action of this intent or null if none is specified.
3238     *
3239     * @see #setAction
3240     */
3241    public String getAction() {
3242        return mAction;
3243    }
3244
3245    /**
3246     * Retrieve data this intent is operating on.  This URI specifies the name
3247     * of the data; often it uses the content: scheme, specifying data in a
3248     * content provider.  Other schemes may be handled by specific activities,
3249     * such as http: by the web browser.
3250     *
3251     * @return The URI of the data this intent is targeting or null.
3252     *
3253     * @see #getScheme
3254     * @see #setData
3255     */
3256    public Uri getData() {
3257        return mData;
3258    }
3259
3260    /**
3261     * The same as {@link #getData()}, but returns the URI as an encoded
3262     * String.
3263     */
3264    public String getDataString() {
3265        return mData != null ? mData.toString() : null;
3266    }
3267
3268    /**
3269     * Return the scheme portion of the intent's data.  If the data is null or
3270     * does not include a scheme, null is returned.  Otherwise, the scheme
3271     * prefix without the final ':' is returned, i.e. "http".
3272     *
3273     * <p>This is the same as calling getData().getScheme() (and checking for
3274     * null data).
3275     *
3276     * @return The scheme of this intent.
3277     *
3278     * @see #getData
3279     */
3280    public String getScheme() {
3281        return mData != null ? mData.getScheme() : null;
3282    }
3283
3284    /**
3285     * Retrieve any explicit MIME type included in the intent.  This is usually
3286     * null, as the type is determined by the intent data.
3287     *
3288     * @return If a type was manually set, it is returned; else null is
3289     *         returned.
3290     *
3291     * @see #resolveType(ContentResolver)
3292     * @see #setType
3293     */
3294    public String getType() {
3295        return mType;
3296    }
3297
3298    /**
3299     * Return the MIME data type of this intent.  If the type field is
3300     * explicitly set, that is simply returned.  Otherwise, if the data is set,
3301     * the type of that data is returned.  If neither fields are set, a null is
3302     * returned.
3303     *
3304     * @return The MIME type of this intent.
3305     *
3306     * @see #getType
3307     * @see #resolveType(ContentResolver)
3308     */
3309    public String resolveType(Context context) {
3310        return resolveType(context.getContentResolver());
3311    }
3312
3313    /**
3314     * Return the MIME data type of this intent.  If the type field is
3315     * explicitly set, that is simply returned.  Otherwise, if the data is set,
3316     * the type of that data is returned.  If neither fields are set, a null is
3317     * returned.
3318     *
3319     * @param resolver A ContentResolver that can be used to determine the MIME
3320     *                 type of the intent's data.
3321     *
3322     * @return The MIME type of this intent.
3323     *
3324     * @see #getType
3325     * @see #resolveType(Context)
3326     */
3327    public String resolveType(ContentResolver resolver) {
3328        if (mType != null) {
3329            return mType;
3330        }
3331        if (mData != null) {
3332            if ("content".equals(mData.getScheme())) {
3333                return resolver.getType(mData);
3334            }
3335        }
3336        return null;
3337    }
3338
3339    /**
3340     * Return the MIME data type of this intent, only if it will be needed for
3341     * intent resolution.  This is not generally useful for application code;
3342     * it is used by the frameworks for communicating with back-end system
3343     * services.
3344     *
3345     * @param resolver A ContentResolver that can be used to determine the MIME
3346     *                 type of the intent's data.
3347     *
3348     * @return The MIME type of this intent, or null if it is unknown or not
3349     *         needed.
3350     */
3351    public String resolveTypeIfNeeded(ContentResolver resolver) {
3352        if (mComponent != null) {
3353            return mType;
3354        }
3355        return resolveType(resolver);
3356    }
3357
3358    /**
3359     * Check if an category exists in the intent.
3360     *
3361     * @param category The category to check.
3362     *
3363     * @return boolean True if the intent contains the category, else false.
3364     *
3365     * @see #getCategories
3366     * @see #addCategory
3367     */
3368    public boolean hasCategory(String category) {
3369        return mCategories != null && mCategories.contains(category);
3370    }
3371
3372    /**
3373     * Return the set of all categories in the intent.  If there are no categories,
3374     * returns NULL.
3375     *
3376     * @return Set The set of categories you can examine.  Do not modify!
3377     *
3378     * @see #hasCategory
3379     * @see #addCategory
3380     */
3381    public Set<String> getCategories() {
3382        return mCategories;
3383    }
3384
3385    /**
3386     * Sets the ClassLoader that will be used when unmarshalling
3387     * any Parcelable values from the extras of this Intent.
3388     *
3389     * @param loader a ClassLoader, or null to use the default loader
3390     * at the time of unmarshalling.
3391     */
3392    public void setExtrasClassLoader(ClassLoader loader) {
3393        if (mExtras != null) {
3394            mExtras.setClassLoader(loader);
3395        }
3396    }
3397
3398    /**
3399     * Returns true if an extra value is associated with the given name.
3400     * @param name the extra's name
3401     * @return true if the given extra is present.
3402     */
3403    public boolean hasExtra(String name) {
3404        return mExtras != null && mExtras.containsKey(name);
3405    }
3406
3407    /**
3408     * Returns true if the Intent's extras contain a parcelled file descriptor.
3409     * @return true if the Intent contains a parcelled file descriptor.
3410     */
3411    public boolean hasFileDescriptors() {
3412        return mExtras != null && mExtras.hasFileDescriptors();
3413    }
3414
3415    /**
3416     * Retrieve extended data from the intent.
3417     *
3418     * @param name The name of the desired item.
3419     *
3420     * @return the value of an item that previously added with putExtra()
3421     * or null if none was found.
3422     *
3423     * @deprecated
3424     * @hide
3425     */
3426    @Deprecated
3427    public Object getExtra(String name) {
3428        return getExtra(name, null);
3429    }
3430
3431    /**
3432     * Retrieve extended data from the intent.
3433     *
3434     * @param name The name of the desired item.
3435     * @param defaultValue the value to be returned if no value of the desired
3436     * type is stored with the given name.
3437     *
3438     * @return the value of an item that previously added with putExtra()
3439     * or the default value if none was found.
3440     *
3441     * @see #putExtra(String, boolean)
3442     */
3443    public boolean getBooleanExtra(String name, boolean defaultValue) {
3444        return mExtras == null ? defaultValue :
3445            mExtras.getBoolean(name, defaultValue);
3446    }
3447
3448    /**
3449     * Retrieve extended data from the intent.
3450     *
3451     * @param name The name of the desired item.
3452     * @param defaultValue the value to be returned if no value of the desired
3453     * type is stored with the given name.
3454     *
3455     * @return the value of an item that previously added with putExtra()
3456     * or the default value if none was found.
3457     *
3458     * @see #putExtra(String, byte)
3459     */
3460    public byte getByteExtra(String name, byte defaultValue) {
3461        return mExtras == null ? defaultValue :
3462            mExtras.getByte(name, defaultValue);
3463    }
3464
3465    /**
3466     * Retrieve extended data from the intent.
3467     *
3468     * @param name The name of the desired item.
3469     * @param defaultValue the value to be returned if no value of the desired
3470     * type is stored with the given name.
3471     *
3472     * @return the value of an item that previously added with putExtra()
3473     * or the default value if none was found.
3474     *
3475     * @see #putExtra(String, short)
3476     */
3477    public short getShortExtra(String name, short defaultValue) {
3478        return mExtras == null ? defaultValue :
3479            mExtras.getShort(name, defaultValue);
3480    }
3481
3482    /**
3483     * Retrieve extended data from the intent.
3484     *
3485     * @param name The name of the desired item.
3486     * @param defaultValue the value to be returned if no value of the desired
3487     * type is stored with the given name.
3488     *
3489     * @return the value of an item that previously added with putExtra()
3490     * or the default value if none was found.
3491     *
3492     * @see #putExtra(String, char)
3493     */
3494    public char getCharExtra(String name, char defaultValue) {
3495        return mExtras == null ? defaultValue :
3496            mExtras.getChar(name, defaultValue);
3497    }
3498
3499    /**
3500     * Retrieve extended data from the intent.
3501     *
3502     * @param name The name of the desired item.
3503     * @param defaultValue the value to be returned if no value of the desired
3504     * type is stored with the given name.
3505     *
3506     * @return the value of an item that previously added with putExtra()
3507     * or the default value if none was found.
3508     *
3509     * @see #putExtra(String, int)
3510     */
3511    public int getIntExtra(String name, int defaultValue) {
3512        return mExtras == null ? defaultValue :
3513            mExtras.getInt(name, defaultValue);
3514    }
3515
3516    /**
3517     * Retrieve extended data from the intent.
3518     *
3519     * @param name The name of the desired item.
3520     * @param defaultValue the value to be returned if no value of the desired
3521     * type is stored with the given name.
3522     *
3523     * @return the value of an item that previously added with putExtra()
3524     * or the default value if none was found.
3525     *
3526     * @see #putExtra(String, long)
3527     */
3528    public long getLongExtra(String name, long defaultValue) {
3529        return mExtras == null ? defaultValue :
3530            mExtras.getLong(name, defaultValue);
3531    }
3532
3533    /**
3534     * Retrieve extended data from the intent.
3535     *
3536     * @param name The name of the desired item.
3537     * @param defaultValue the value to be returned if no value of the desired
3538     * type is stored with the given name.
3539     *
3540     * @return the value of an item that previously added with putExtra(),
3541     * or the default value if no such item is present
3542     *
3543     * @see #putExtra(String, float)
3544     */
3545    public float getFloatExtra(String name, float defaultValue) {
3546        return mExtras == null ? defaultValue :
3547            mExtras.getFloat(name, defaultValue);
3548    }
3549
3550    /**
3551     * Retrieve extended data from the intent.
3552     *
3553     * @param name The name of the desired item.
3554     * @param defaultValue the value to be returned if no value of the desired
3555     * type is stored with the given name.
3556     *
3557     * @return the value of an item that previously added with putExtra()
3558     * or the default value if none was found.
3559     *
3560     * @see #putExtra(String, double)
3561     */
3562    public double getDoubleExtra(String name, double defaultValue) {
3563        return mExtras == null ? defaultValue :
3564            mExtras.getDouble(name, defaultValue);
3565    }
3566
3567    /**
3568     * Retrieve extended data from the intent.
3569     *
3570     * @param name The name of the desired item.
3571     *
3572     * @return the value of an item that previously added with putExtra()
3573     * or null if no String value was found.
3574     *
3575     * @see #putExtra(String, String)
3576     */
3577    public String getStringExtra(String name) {
3578        return mExtras == null ? null : mExtras.getString(name);
3579    }
3580
3581    /**
3582     * Retrieve extended data from the intent.
3583     *
3584     * @param name The name of the desired item.
3585     *
3586     * @return the value of an item that previously added with putExtra()
3587     * or null if no CharSequence value was found.
3588     *
3589     * @see #putExtra(String, CharSequence)
3590     */
3591    public CharSequence getCharSequenceExtra(String name) {
3592        return mExtras == null ? null : mExtras.getCharSequence(name);
3593    }
3594
3595    /**
3596     * Retrieve extended data from the intent.
3597     *
3598     * @param name The name of the desired item.
3599     *
3600     * @return the value of an item that previously added with putExtra()
3601     * or null if no Parcelable value was found.
3602     *
3603     * @see #putExtra(String, Parcelable)
3604     */
3605    public <T extends Parcelable> T getParcelableExtra(String name) {
3606        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3607    }
3608
3609    /**
3610     * Retrieve extended data from the intent.
3611     *
3612     * @param name The name of the desired item.
3613     *
3614     * @return the value of an item that previously added with putExtra()
3615     * or null if no Parcelable[] value was found.
3616     *
3617     * @see #putExtra(String, Parcelable[])
3618     */
3619    public Parcelable[] getParcelableArrayExtra(String name) {
3620        return mExtras == null ? null : mExtras.getParcelableArray(name);
3621    }
3622
3623    /**
3624     * Retrieve extended data from the intent.
3625     *
3626     * @param name The name of the desired item.
3627     *
3628     * @return the value of an item that previously added with putExtra()
3629     * or null if no ArrayList<Parcelable> value was found.
3630     *
3631     * @see #putParcelableArrayListExtra(String, ArrayList)
3632     */
3633    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3634        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3635    }
3636
3637    /**
3638     * Retrieve extended data from the intent.
3639     *
3640     * @param name The name of the desired item.
3641     *
3642     * @return the value of an item that previously added with putExtra()
3643     * or null if no Serializable value was found.
3644     *
3645     * @see #putExtra(String, Serializable)
3646     */
3647    public Serializable getSerializableExtra(String name) {
3648        return mExtras == null ? null : mExtras.getSerializable(name);
3649    }
3650
3651    /**
3652     * Retrieve extended data from the intent.
3653     *
3654     * @param name The name of the desired item.
3655     *
3656     * @return the value of an item that previously added with putExtra()
3657     * or null if no ArrayList<Integer> value was found.
3658     *
3659     * @see #putIntegerArrayListExtra(String, ArrayList)
3660     */
3661    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3662        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3663    }
3664
3665    /**
3666     * Retrieve extended data from the intent.
3667     *
3668     * @param name The name of the desired item.
3669     *
3670     * @return the value of an item that previously added with putExtra()
3671     * or null if no ArrayList<String> value was found.
3672     *
3673     * @see #putStringArrayListExtra(String, ArrayList)
3674     */
3675    public ArrayList<String> getStringArrayListExtra(String name) {
3676        return mExtras == null ? null : mExtras.getStringArrayList(name);
3677    }
3678
3679    /**
3680     * Retrieve extended data from the intent.
3681     *
3682     * @param name The name of the desired item.
3683     *
3684     * @return the value of an item that previously added with putExtra()
3685     * or null if no ArrayList<CharSequence> value was found.
3686     *
3687     * @see #putCharSequenceArrayListExtra(String, ArrayList)
3688     */
3689    public ArrayList<CharSequence> getCharSequenceArrayListExtra(String name) {
3690        return mExtras == null ? null : mExtras.getCharSequenceArrayList(name);
3691    }
3692
3693    /**
3694     * Retrieve extended data from the intent.
3695     *
3696     * @param name The name of the desired item.
3697     *
3698     * @return the value of an item that previously added with putExtra()
3699     * or null if no boolean array value was found.
3700     *
3701     * @see #putExtra(String, boolean[])
3702     */
3703    public boolean[] getBooleanArrayExtra(String name) {
3704        return mExtras == null ? null : mExtras.getBooleanArray(name);
3705    }
3706
3707    /**
3708     * Retrieve extended data from the intent.
3709     *
3710     * @param name The name of the desired item.
3711     *
3712     * @return the value of an item that previously added with putExtra()
3713     * or null if no byte array value was found.
3714     *
3715     * @see #putExtra(String, byte[])
3716     */
3717    public byte[] getByteArrayExtra(String name) {
3718        return mExtras == null ? null : mExtras.getByteArray(name);
3719    }
3720
3721    /**
3722     * Retrieve extended data from the intent.
3723     *
3724     * @param name The name of the desired item.
3725     *
3726     * @return the value of an item that previously added with putExtra()
3727     * or null if no short array value was found.
3728     *
3729     * @see #putExtra(String, short[])
3730     */
3731    public short[] getShortArrayExtra(String name) {
3732        return mExtras == null ? null : mExtras.getShortArray(name);
3733    }
3734
3735    /**
3736     * Retrieve extended data from the intent.
3737     *
3738     * @param name The name of the desired item.
3739     *
3740     * @return the value of an item that previously added with putExtra()
3741     * or null if no char array value was found.
3742     *
3743     * @see #putExtra(String, char[])
3744     */
3745    public char[] getCharArrayExtra(String name) {
3746        return mExtras == null ? null : mExtras.getCharArray(name);
3747    }
3748
3749    /**
3750     * Retrieve extended data from the intent.
3751     *
3752     * @param name The name of the desired item.
3753     *
3754     * @return the value of an item that previously added with putExtra()
3755     * or null if no int array value was found.
3756     *
3757     * @see #putExtra(String, int[])
3758     */
3759    public int[] getIntArrayExtra(String name) {
3760        return mExtras == null ? null : mExtras.getIntArray(name);
3761    }
3762
3763    /**
3764     * Retrieve extended data from the intent.
3765     *
3766     * @param name The name of the desired item.
3767     *
3768     * @return the value of an item that previously added with putExtra()
3769     * or null if no long array value was found.
3770     *
3771     * @see #putExtra(String, long[])
3772     */
3773    public long[] getLongArrayExtra(String name) {
3774        return mExtras == null ? null : mExtras.getLongArray(name);
3775    }
3776
3777    /**
3778     * Retrieve extended data from the intent.
3779     *
3780     * @param name The name of the desired item.
3781     *
3782     * @return the value of an item that previously added with putExtra()
3783     * or null if no float array value was found.
3784     *
3785     * @see #putExtra(String, float[])
3786     */
3787    public float[] getFloatArrayExtra(String name) {
3788        return mExtras == null ? null : mExtras.getFloatArray(name);
3789    }
3790
3791    /**
3792     * Retrieve extended data from the intent.
3793     *
3794     * @param name The name of the desired item.
3795     *
3796     * @return the value of an item that previously added with putExtra()
3797     * or null if no double array value was found.
3798     *
3799     * @see #putExtra(String, double[])
3800     */
3801    public double[] getDoubleArrayExtra(String name) {
3802        return mExtras == null ? null : mExtras.getDoubleArray(name);
3803    }
3804
3805    /**
3806     * Retrieve extended data from the intent.
3807     *
3808     * @param name The name of the desired item.
3809     *
3810     * @return the value of an item that previously added with putExtra()
3811     * or null if no String array value was found.
3812     *
3813     * @see #putExtra(String, String[])
3814     */
3815    public String[] getStringArrayExtra(String name) {
3816        return mExtras == null ? null : mExtras.getStringArray(name);
3817    }
3818
3819    /**
3820     * Retrieve extended data from the intent.
3821     *
3822     * @param name The name of the desired item.
3823     *
3824     * @return the value of an item that previously added with putExtra()
3825     * or null if no CharSequence array value was found.
3826     *
3827     * @see #putExtra(String, CharSequence[])
3828     */
3829    public CharSequence[] getCharSequenceArrayExtra(String name) {
3830        return mExtras == null ? null : mExtras.getCharSequenceArray(name);
3831    }
3832
3833    /**
3834     * Retrieve extended data from the intent.
3835     *
3836     * @param name The name of the desired item.
3837     *
3838     * @return the value of an item that previously added with putExtra()
3839     * or null if no Bundle value was found.
3840     *
3841     * @see #putExtra(String, Bundle)
3842     */
3843    public Bundle getBundleExtra(String name) {
3844        return mExtras == null ? null : mExtras.getBundle(name);
3845    }
3846
3847    /**
3848     * Retrieve extended data from the intent.
3849     *
3850     * @param name The name of the desired item.
3851     *
3852     * @return the value of an item that previously added with putExtra()
3853     * or null if no IBinder value was found.
3854     *
3855     * @see #putExtra(String, IBinder)
3856     *
3857     * @deprecated
3858     * @hide
3859     */
3860    @Deprecated
3861    public IBinder getIBinderExtra(String name) {
3862        return mExtras == null ? null : mExtras.getIBinder(name);
3863    }
3864
3865    /**
3866     * Retrieve extended data from the intent.
3867     *
3868     * @param name The name of the desired item.
3869     * @param defaultValue The default value to return in case no item is
3870     * associated with the key 'name'
3871     *
3872     * @return the value of an item that previously added with putExtra()
3873     * or defaultValue if none was found.
3874     *
3875     * @see #putExtra
3876     *
3877     * @deprecated
3878     * @hide
3879     */
3880    @Deprecated
3881    public Object getExtra(String name, Object defaultValue) {
3882        Object result = defaultValue;
3883        if (mExtras != null) {
3884            Object result2 = mExtras.get(name);
3885            if (result2 != null) {
3886                result = result2;
3887            }
3888        }
3889
3890        return result;
3891    }
3892
3893    /**
3894     * Retrieves a map of extended data from the intent.
3895     *
3896     * @return the map of all extras previously added with putExtra(),
3897     * or null if none have been added.
3898     */
3899    public Bundle getExtras() {
3900        return (mExtras != null)
3901                ? new Bundle(mExtras)
3902                : null;
3903    }
3904
3905    /**
3906     * Retrieve any special flags associated with this intent.  You will
3907     * normally just set them with {@link #setFlags} and let the system
3908     * take the appropriate action with them.
3909     *
3910     * @return int The currently set flags.
3911     *
3912     * @see #setFlags
3913     */
3914    public int getFlags() {
3915        return mFlags;
3916    }
3917
3918    /**
3919     * Retrieve the application package name this Intent is limited to.  When
3920     * resolving an Intent, if non-null this limits the resolution to only
3921     * components in the given application package.
3922     *
3923     * @return The name of the application package for the Intent.
3924     *
3925     * @see #resolveActivity
3926     * @see #setPackage
3927     */
3928    public String getPackage() {
3929        return mPackage;
3930    }
3931
3932    /**
3933     * Retrieve the concrete component associated with the intent.  When receiving
3934     * an intent, this is the component that was found to best handle it (that is,
3935     * yourself) and will always be non-null; in all other cases it will be
3936     * null unless explicitly set.
3937     *
3938     * @return The name of the application component to handle the intent.
3939     *
3940     * @see #resolveActivity
3941     * @see #setComponent
3942     */
3943    public ComponentName getComponent() {
3944        return mComponent;
3945    }
3946
3947    /**
3948     * Get the bounds of the sender of this intent, in screen coordinates.  This can be
3949     * used as a hint to the receiver for animations and the like.  Null means that there
3950     * is no source bounds.
3951     */
3952    public Rect getSourceBounds() {
3953        return mSourceBounds;
3954    }
3955
3956    /**
3957     * Return the Activity component that should be used to handle this intent.
3958     * The appropriate component is determined based on the information in the
3959     * intent, evaluated as follows:
3960     *
3961     * <p>If {@link #getComponent} returns an explicit class, that is returned
3962     * without any further consideration.
3963     *
3964     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3965     * category to be considered.
3966     *
3967     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3968     * action.
3969     *
3970     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3971     * this type.
3972     *
3973     * <p>If {@link #addCategory} has added any categories, the activity must
3974     * handle ALL of the categories specified.
3975     *
3976     * <p>If {@link #getPackage} is non-NULL, only activity components in
3977     * that application package will be considered.
3978     *
3979     * <p>If there are no activities that satisfy all of these conditions, a
3980     * null string is returned.
3981     *
3982     * <p>If multiple activities are found to satisfy the intent, the one with
3983     * the highest priority will be used.  If there are multiple activities
3984     * with the same priority, the system will either pick the best activity
3985     * based on user preference, or resolve to a system class that will allow
3986     * the user to pick an activity and forward from there.
3987     *
3988     * <p>This method is implemented simply by calling
3989     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3990     * true.</p>
3991     * <p> This API is called for you as part of starting an activity from an
3992     * intent.  You do not normally need to call it yourself.</p>
3993     *
3994     * @param pm The package manager with which to resolve the Intent.
3995     *
3996     * @return Name of the component implementing an activity that can
3997     *         display the intent.
3998     *
3999     * @see #setComponent
4000     * @see #getComponent
4001     * @see #resolveActivityInfo
4002     */
4003    public ComponentName resolveActivity(PackageManager pm) {
4004        if (mComponent != null) {
4005            return mComponent;
4006        }
4007
4008        ResolveInfo info = pm.resolveActivity(
4009            this, PackageManager.MATCH_DEFAULT_ONLY);
4010        if (info != null) {
4011            return new ComponentName(
4012                    info.activityInfo.applicationInfo.packageName,
4013                    info.activityInfo.name);
4014        }
4015
4016        return null;
4017    }
4018
4019    /**
4020     * Resolve the Intent into an {@link ActivityInfo}
4021     * describing the activity that should execute the intent.  Resolution
4022     * follows the same rules as described for {@link #resolveActivity}, but
4023     * you get back the completely information about the resolved activity
4024     * instead of just its class name.
4025     *
4026     * @param pm The package manager with which to resolve the Intent.
4027     * @param flags Addition information to retrieve as per
4028     * {@link PackageManager#getActivityInfo(ComponentName, int)
4029     * PackageManager.getActivityInfo()}.
4030     *
4031     * @return PackageManager.ActivityInfo
4032     *
4033     * @see #resolveActivity
4034     */
4035    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
4036        ActivityInfo ai = null;
4037        if (mComponent != null) {
4038            try {
4039                ai = pm.getActivityInfo(mComponent, flags);
4040            } catch (PackageManager.NameNotFoundException e) {
4041                // ignore
4042            }
4043        } else {
4044            ResolveInfo info = pm.resolveActivity(
4045                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
4046            if (info != null) {
4047                ai = info.activityInfo;
4048            }
4049        }
4050
4051        return ai;
4052    }
4053
4054    /**
4055     * Set the general action to be performed.
4056     *
4057     * @param action An action name, such as ACTION_VIEW.  Application-specific
4058     *               actions should be prefixed with the vendor's package name.
4059     *
4060     * @return Returns the same Intent object, for chaining multiple calls
4061     * into a single statement.
4062     *
4063     * @see #getAction
4064     */
4065    public Intent setAction(String action) {
4066        mAction = action != null ? action.intern() : null;
4067        return this;
4068    }
4069
4070    /**
4071     * Set the data this intent is operating on.  This method automatically
4072     * clears any type that was previously set by {@link #setType}.
4073     *
4074     * <p><em>Note: scheme and host name matching in the Android framework is
4075     * case-sensitive, unlike the formal RFC.  As a result,
4076     * you should always ensure that you write your Uri with these elements
4077     * using lower case letters, and normalize any Uris you receive from
4078     * outside of Android to ensure the scheme and host is lower case.</em></p>
4079     *
4080     * @param data The URI of the data this intent is now targeting.
4081     *
4082     * @return Returns the same Intent object, for chaining multiple calls
4083     * into a single statement.
4084     *
4085     * @see #getData
4086     * @see #setType
4087     * @see #setDataAndType
4088     */
4089    public Intent setData(Uri data) {
4090        mData = data;
4091        mType = null;
4092        return this;
4093    }
4094
4095    /**
4096     * Set an explicit MIME data type.  This is used to create intents that
4097     * only specify a type and not data, for example to indicate the type of
4098     * data to return.  This method automatically clears any data that was
4099     * previously set by {@link #setData}.
4100     *
4101     * <p><em>Note: MIME type matching in the Android framework is
4102     * case-sensitive, unlike formal RFC MIME types.  As a result,
4103     * you should always write your MIME types with lower case letters,
4104     * and any MIME types you receive from outside of Android should be
4105     * converted to lower case before supplying them here.</em></p>
4106     *
4107     * @param type The MIME type of the data being handled by this intent.
4108     *
4109     * @return Returns the same Intent object, for chaining multiple calls
4110     * into a single statement.
4111     *
4112     * @see #getType
4113     * @see #setData
4114     * @see #setDataAndType
4115     */
4116    public Intent setType(String type) {
4117        mData = null;
4118        mType = type;
4119        return this;
4120    }
4121
4122    /**
4123     * (Usually optional) Set the data for the intent along with an explicit
4124     * MIME data type.  This method should very rarely be used -- it allows you
4125     * to override the MIME type that would ordinarily be inferred from the
4126     * data with your own type given here.
4127     *
4128     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
4129     * Android framework is case-sensitive, unlike the formal RFC definitions.
4130     * As a result, you should always write these elements with lower case letters,
4131     * and normalize any MIME types or Uris you receive from
4132     * outside of Android to ensure these elements are lower case before
4133     * supplying them here.</em></p>
4134     *
4135     * @param data The URI of the data this intent is now targeting.
4136     * @param type The MIME type of the data being handled by this intent.
4137     *
4138     * @return Returns the same Intent object, for chaining multiple calls
4139     * into a single statement.
4140     *
4141     * @see #setData
4142     * @see #setType
4143     */
4144    public Intent setDataAndType(Uri data, String type) {
4145        mData = data;
4146        mType = type;
4147        return this;
4148    }
4149
4150    /**
4151     * Add a new category to the intent.  Categories provide additional detail
4152     * about the action the intent is perform.  When resolving an intent, only
4153     * activities that provide <em>all</em> of the requested categories will be
4154     * used.
4155     *
4156     * @param category The desired category.  This can be either one of the
4157     *               predefined Intent categories, or a custom category in your own
4158     *               namespace.
4159     *
4160     * @return Returns the same Intent object, for chaining multiple calls
4161     * into a single statement.
4162     *
4163     * @see #hasCategory
4164     * @see #removeCategory
4165     */
4166    public Intent addCategory(String category) {
4167        if (mCategories == null) {
4168            mCategories = new HashSet<String>();
4169        }
4170        mCategories.add(category.intern());
4171        return this;
4172    }
4173
4174    /**
4175     * Remove an category from an intent.
4176     *
4177     * @param category The category to remove.
4178     *
4179     * @see #addCategory
4180     */
4181    public void removeCategory(String category) {
4182        if (mCategories != null) {
4183            mCategories.remove(category);
4184            if (mCategories.size() == 0) {
4185                mCategories = null;
4186            }
4187        }
4188    }
4189
4190    /**
4191     * Add extended data to the intent.  The name must include a package
4192     * prefix, for example the app com.android.contacts would use names
4193     * like "com.android.contacts.ShowAll".
4194     *
4195     * @param name The name of the extra data, with package prefix.
4196     * @param value The boolean data value.
4197     *
4198     * @return Returns the same Intent object, for chaining multiple calls
4199     * into a single statement.
4200     *
4201     * @see #putExtras
4202     * @see #removeExtra
4203     * @see #getBooleanExtra(String, boolean)
4204     */
4205    public Intent putExtra(String name, boolean value) {
4206        if (mExtras == null) {
4207            mExtras = new Bundle();
4208        }
4209        mExtras.putBoolean(name, value);
4210        return this;
4211    }
4212
4213    /**
4214     * Add extended data to the intent.  The name must include a package
4215     * prefix, for example the app com.android.contacts would use names
4216     * like "com.android.contacts.ShowAll".
4217     *
4218     * @param name The name of the extra data, with package prefix.
4219     * @param value The byte data value.
4220     *
4221     * @return Returns the same Intent object, for chaining multiple calls
4222     * into a single statement.
4223     *
4224     * @see #putExtras
4225     * @see #removeExtra
4226     * @see #getByteExtra(String, byte)
4227     */
4228    public Intent putExtra(String name, byte value) {
4229        if (mExtras == null) {
4230            mExtras = new Bundle();
4231        }
4232        mExtras.putByte(name, value);
4233        return this;
4234    }
4235
4236    /**
4237     * Add extended data to the intent.  The name must include a package
4238     * prefix, for example the app com.android.contacts would use names
4239     * like "com.android.contacts.ShowAll".
4240     *
4241     * @param name The name of the extra data, with package prefix.
4242     * @param value The char data value.
4243     *
4244     * @return Returns the same Intent object, for chaining multiple calls
4245     * into a single statement.
4246     *
4247     * @see #putExtras
4248     * @see #removeExtra
4249     * @see #getCharExtra(String, char)
4250     */
4251    public Intent putExtra(String name, char value) {
4252        if (mExtras == null) {
4253            mExtras = new Bundle();
4254        }
4255        mExtras.putChar(name, value);
4256        return this;
4257    }
4258
4259    /**
4260     * Add extended data to the intent.  The name must include a package
4261     * prefix, for example the app com.android.contacts would use names
4262     * like "com.android.contacts.ShowAll".
4263     *
4264     * @param name The name of the extra data, with package prefix.
4265     * @param value The short data value.
4266     *
4267     * @return Returns the same Intent object, for chaining multiple calls
4268     * into a single statement.
4269     *
4270     * @see #putExtras
4271     * @see #removeExtra
4272     * @see #getShortExtra(String, short)
4273     */
4274    public Intent putExtra(String name, short value) {
4275        if (mExtras == null) {
4276            mExtras = new Bundle();
4277        }
4278        mExtras.putShort(name, value);
4279        return this;
4280    }
4281
4282    /**
4283     * Add extended data to the intent.  The name must include a package
4284     * prefix, for example the app com.android.contacts would use names
4285     * like "com.android.contacts.ShowAll".
4286     *
4287     * @param name The name of the extra data, with package prefix.
4288     * @param value The integer data value.
4289     *
4290     * @return Returns the same Intent object, for chaining multiple calls
4291     * into a single statement.
4292     *
4293     * @see #putExtras
4294     * @see #removeExtra
4295     * @see #getIntExtra(String, int)
4296     */
4297    public Intent putExtra(String name, int value) {
4298        if (mExtras == null) {
4299            mExtras = new Bundle();
4300        }
4301        mExtras.putInt(name, value);
4302        return this;
4303    }
4304
4305    /**
4306     * Add extended data to the intent.  The name must include a package
4307     * prefix, for example the app com.android.contacts would use names
4308     * like "com.android.contacts.ShowAll".
4309     *
4310     * @param name The name of the extra data, with package prefix.
4311     * @param value The long data value.
4312     *
4313     * @return Returns the same Intent object, for chaining multiple calls
4314     * into a single statement.
4315     *
4316     * @see #putExtras
4317     * @see #removeExtra
4318     * @see #getLongExtra(String, long)
4319     */
4320    public Intent putExtra(String name, long value) {
4321        if (mExtras == null) {
4322            mExtras = new Bundle();
4323        }
4324        mExtras.putLong(name, value);
4325        return this;
4326    }
4327
4328    /**
4329     * Add extended data to the intent.  The name must include a package
4330     * prefix, for example the app com.android.contacts would use names
4331     * like "com.android.contacts.ShowAll".
4332     *
4333     * @param name The name of the extra data, with package prefix.
4334     * @param value The float data value.
4335     *
4336     * @return Returns the same Intent object, for chaining multiple calls
4337     * into a single statement.
4338     *
4339     * @see #putExtras
4340     * @see #removeExtra
4341     * @see #getFloatExtra(String, float)
4342     */
4343    public Intent putExtra(String name, float value) {
4344        if (mExtras == null) {
4345            mExtras = new Bundle();
4346        }
4347        mExtras.putFloat(name, value);
4348        return this;
4349    }
4350
4351    /**
4352     * Add extended data to the intent.  The name must include a package
4353     * prefix, for example the app com.android.contacts would use names
4354     * like "com.android.contacts.ShowAll".
4355     *
4356     * @param name The name of the extra data, with package prefix.
4357     * @param value The double data value.
4358     *
4359     * @return Returns the same Intent object, for chaining multiple calls
4360     * into a single statement.
4361     *
4362     * @see #putExtras
4363     * @see #removeExtra
4364     * @see #getDoubleExtra(String, double)
4365     */
4366    public Intent putExtra(String name, double value) {
4367        if (mExtras == null) {
4368            mExtras = new Bundle();
4369        }
4370        mExtras.putDouble(name, value);
4371        return this;
4372    }
4373
4374    /**
4375     * Add extended data to the intent.  The name must include a package
4376     * prefix, for example the app com.android.contacts would use names
4377     * like "com.android.contacts.ShowAll".
4378     *
4379     * @param name The name of the extra data, with package prefix.
4380     * @param value The String data value.
4381     *
4382     * @return Returns the same Intent object, for chaining multiple calls
4383     * into a single statement.
4384     *
4385     * @see #putExtras
4386     * @see #removeExtra
4387     * @see #getStringExtra(String)
4388     */
4389    public Intent putExtra(String name, String value) {
4390        if (mExtras == null) {
4391            mExtras = new Bundle();
4392        }
4393        mExtras.putString(name, value);
4394        return this;
4395    }
4396
4397    /**
4398     * Add extended data to the intent.  The name must include a package
4399     * prefix, for example the app com.android.contacts would use names
4400     * like "com.android.contacts.ShowAll".
4401     *
4402     * @param name The name of the extra data, with package prefix.
4403     * @param value The CharSequence data value.
4404     *
4405     * @return Returns the same Intent object, for chaining multiple calls
4406     * into a single statement.
4407     *
4408     * @see #putExtras
4409     * @see #removeExtra
4410     * @see #getCharSequenceExtra(String)
4411     */
4412    public Intent putExtra(String name, CharSequence value) {
4413        if (mExtras == null) {
4414            mExtras = new Bundle();
4415        }
4416        mExtras.putCharSequence(name, value);
4417        return this;
4418    }
4419
4420    /**
4421     * Add extended data to the intent.  The name must include a package
4422     * prefix, for example the app com.android.contacts would use names
4423     * like "com.android.contacts.ShowAll".
4424     *
4425     * @param name The name of the extra data, with package prefix.
4426     * @param value The Parcelable data value.
4427     *
4428     * @return Returns the same Intent object, for chaining multiple calls
4429     * into a single statement.
4430     *
4431     * @see #putExtras
4432     * @see #removeExtra
4433     * @see #getParcelableExtra(String)
4434     */
4435    public Intent putExtra(String name, Parcelable value) {
4436        if (mExtras == null) {
4437            mExtras = new Bundle();
4438        }
4439        mExtras.putParcelable(name, value);
4440        return this;
4441    }
4442
4443    /**
4444     * Add extended data to the intent.  The name must include a package
4445     * prefix, for example the app com.android.contacts would use names
4446     * like "com.android.contacts.ShowAll".
4447     *
4448     * @param name The name of the extra data, with package prefix.
4449     * @param value The Parcelable[] data value.
4450     *
4451     * @return Returns the same Intent object, for chaining multiple calls
4452     * into a single statement.
4453     *
4454     * @see #putExtras
4455     * @see #removeExtra
4456     * @see #getParcelableArrayExtra(String)
4457     */
4458    public Intent putExtra(String name, Parcelable[] value) {
4459        if (mExtras == null) {
4460            mExtras = new Bundle();
4461        }
4462        mExtras.putParcelableArray(name, value);
4463        return this;
4464    }
4465
4466    /**
4467     * Add extended data to the intent.  The name must include a package
4468     * prefix, for example the app com.android.contacts would use names
4469     * like "com.android.contacts.ShowAll".
4470     *
4471     * @param name The name of the extra data, with package prefix.
4472     * @param value The ArrayList<Parcelable> data value.
4473     *
4474     * @return Returns the same Intent object, for chaining multiple calls
4475     * into a single statement.
4476     *
4477     * @see #putExtras
4478     * @see #removeExtra
4479     * @see #getParcelableArrayListExtra(String)
4480     */
4481    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
4482        if (mExtras == null) {
4483            mExtras = new Bundle();
4484        }
4485        mExtras.putParcelableArrayList(name, value);
4486        return this;
4487    }
4488
4489    /**
4490     * Add extended data to the intent.  The name must include a package
4491     * prefix, for example the app com.android.contacts would use names
4492     * like "com.android.contacts.ShowAll".
4493     *
4494     * @param name The name of the extra data, with package prefix.
4495     * @param value The ArrayList<Integer> data value.
4496     *
4497     * @return Returns the same Intent object, for chaining multiple calls
4498     * into a single statement.
4499     *
4500     * @see #putExtras
4501     * @see #removeExtra
4502     * @see #getIntegerArrayListExtra(String)
4503     */
4504    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
4505        if (mExtras == null) {
4506            mExtras = new Bundle();
4507        }
4508        mExtras.putIntegerArrayList(name, value);
4509        return this;
4510    }
4511
4512    /**
4513     * Add extended data to the intent.  The name must include a package
4514     * prefix, for example the app com.android.contacts would use names
4515     * like "com.android.contacts.ShowAll".
4516     *
4517     * @param name The name of the extra data, with package prefix.
4518     * @param value The ArrayList<String> data value.
4519     *
4520     * @return Returns the same Intent object, for chaining multiple calls
4521     * into a single statement.
4522     *
4523     * @see #putExtras
4524     * @see #removeExtra
4525     * @see #getStringArrayListExtra(String)
4526     */
4527    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
4528        if (mExtras == null) {
4529            mExtras = new Bundle();
4530        }
4531        mExtras.putStringArrayList(name, value);
4532        return this;
4533    }
4534
4535    /**
4536     * Add extended data to the intent.  The name must include a package
4537     * prefix, for example the app com.android.contacts would use names
4538     * like "com.android.contacts.ShowAll".
4539     *
4540     * @param name The name of the extra data, with package prefix.
4541     * @param value The ArrayList<CharSequence> data value.
4542     *
4543     * @return Returns the same Intent object, for chaining multiple calls
4544     * into a single statement.
4545     *
4546     * @see #putExtras
4547     * @see #removeExtra
4548     * @see #getCharSequenceArrayListExtra(String)
4549     */
4550    public Intent putCharSequenceArrayListExtra(String name, ArrayList<CharSequence> value) {
4551        if (mExtras == null) {
4552            mExtras = new Bundle();
4553        }
4554        mExtras.putCharSequenceArrayList(name, value);
4555        return this;
4556    }
4557
4558    /**
4559     * Add extended data to the intent.  The name must include a package
4560     * prefix, for example the app com.android.contacts would use names
4561     * like "com.android.contacts.ShowAll".
4562     *
4563     * @param name The name of the extra data, with package prefix.
4564     * @param value The Serializable data value.
4565     *
4566     * @return Returns the same Intent object, for chaining multiple calls
4567     * into a single statement.
4568     *
4569     * @see #putExtras
4570     * @see #removeExtra
4571     * @see #getSerializableExtra(String)
4572     */
4573    public Intent putExtra(String name, Serializable value) {
4574        if (mExtras == null) {
4575            mExtras = new Bundle();
4576        }
4577        mExtras.putSerializable(name, value);
4578        return this;
4579    }
4580
4581    /**
4582     * Add extended data to the intent.  The name must include a package
4583     * prefix, for example the app com.android.contacts would use names
4584     * like "com.android.contacts.ShowAll".
4585     *
4586     * @param name The name of the extra data, with package prefix.
4587     * @param value The boolean array data value.
4588     *
4589     * @return Returns the same Intent object, for chaining multiple calls
4590     * into a single statement.
4591     *
4592     * @see #putExtras
4593     * @see #removeExtra
4594     * @see #getBooleanArrayExtra(String)
4595     */
4596    public Intent putExtra(String name, boolean[] value) {
4597        if (mExtras == null) {
4598            mExtras = new Bundle();
4599        }
4600        mExtras.putBooleanArray(name, value);
4601        return this;
4602    }
4603
4604    /**
4605     * Add extended data to the intent.  The name must include a package
4606     * prefix, for example the app com.android.contacts would use names
4607     * like "com.android.contacts.ShowAll".
4608     *
4609     * @param name The name of the extra data, with package prefix.
4610     * @param value The byte array data value.
4611     *
4612     * @return Returns the same Intent object, for chaining multiple calls
4613     * into a single statement.
4614     *
4615     * @see #putExtras
4616     * @see #removeExtra
4617     * @see #getByteArrayExtra(String)
4618     */
4619    public Intent putExtra(String name, byte[] value) {
4620        if (mExtras == null) {
4621            mExtras = new Bundle();
4622        }
4623        mExtras.putByteArray(name, value);
4624        return this;
4625    }
4626
4627    /**
4628     * Add extended data to the intent.  The name must include a package
4629     * prefix, for example the app com.android.contacts would use names
4630     * like "com.android.contacts.ShowAll".
4631     *
4632     * @param name The name of the extra data, with package prefix.
4633     * @param value The short array data value.
4634     *
4635     * @return Returns the same Intent object, for chaining multiple calls
4636     * into a single statement.
4637     *
4638     * @see #putExtras
4639     * @see #removeExtra
4640     * @see #getShortArrayExtra(String)
4641     */
4642    public Intent putExtra(String name, short[] value) {
4643        if (mExtras == null) {
4644            mExtras = new Bundle();
4645        }
4646        mExtras.putShortArray(name, value);
4647        return this;
4648    }
4649
4650    /**
4651     * Add extended data to the intent.  The name must include a package
4652     * prefix, for example the app com.android.contacts would use names
4653     * like "com.android.contacts.ShowAll".
4654     *
4655     * @param name The name of the extra data, with package prefix.
4656     * @param value The char array data value.
4657     *
4658     * @return Returns the same Intent object, for chaining multiple calls
4659     * into a single statement.
4660     *
4661     * @see #putExtras
4662     * @see #removeExtra
4663     * @see #getCharArrayExtra(String)
4664     */
4665    public Intent putExtra(String name, char[] value) {
4666        if (mExtras == null) {
4667            mExtras = new Bundle();
4668        }
4669        mExtras.putCharArray(name, value);
4670        return this;
4671    }
4672
4673    /**
4674     * Add extended data to the intent.  The name must include a package
4675     * prefix, for example the app com.android.contacts would use names
4676     * like "com.android.contacts.ShowAll".
4677     *
4678     * @param name The name of the extra data, with package prefix.
4679     * @param value The int array data value.
4680     *
4681     * @return Returns the same Intent object, for chaining multiple calls
4682     * into a single statement.
4683     *
4684     * @see #putExtras
4685     * @see #removeExtra
4686     * @see #getIntArrayExtra(String)
4687     */
4688    public Intent putExtra(String name, int[] value) {
4689        if (mExtras == null) {
4690            mExtras = new Bundle();
4691        }
4692        mExtras.putIntArray(name, value);
4693        return this;
4694    }
4695
4696    /**
4697     * Add extended data to the intent.  The name must include a package
4698     * prefix, for example the app com.android.contacts would use names
4699     * like "com.android.contacts.ShowAll".
4700     *
4701     * @param name The name of the extra data, with package prefix.
4702     * @param value The byte array data value.
4703     *
4704     * @return Returns the same Intent object, for chaining multiple calls
4705     * into a single statement.
4706     *
4707     * @see #putExtras
4708     * @see #removeExtra
4709     * @see #getLongArrayExtra(String)
4710     */
4711    public Intent putExtra(String name, long[] value) {
4712        if (mExtras == null) {
4713            mExtras = new Bundle();
4714        }
4715        mExtras.putLongArray(name, value);
4716        return this;
4717    }
4718
4719    /**
4720     * Add extended data to the intent.  The name must include a package
4721     * prefix, for example the app com.android.contacts would use names
4722     * like "com.android.contacts.ShowAll".
4723     *
4724     * @param name The name of the extra data, with package prefix.
4725     * @param value The float array data value.
4726     *
4727     * @return Returns the same Intent object, for chaining multiple calls
4728     * into a single statement.
4729     *
4730     * @see #putExtras
4731     * @see #removeExtra
4732     * @see #getFloatArrayExtra(String)
4733     */
4734    public Intent putExtra(String name, float[] value) {
4735        if (mExtras == null) {
4736            mExtras = new Bundle();
4737        }
4738        mExtras.putFloatArray(name, value);
4739        return this;
4740    }
4741
4742    /**
4743     * Add extended data to the intent.  The name must include a package
4744     * prefix, for example the app com.android.contacts would use names
4745     * like "com.android.contacts.ShowAll".
4746     *
4747     * @param name The name of the extra data, with package prefix.
4748     * @param value The double array data value.
4749     *
4750     * @return Returns the same Intent object, for chaining multiple calls
4751     * into a single statement.
4752     *
4753     * @see #putExtras
4754     * @see #removeExtra
4755     * @see #getDoubleArrayExtra(String)
4756     */
4757    public Intent putExtra(String name, double[] value) {
4758        if (mExtras == null) {
4759            mExtras = new Bundle();
4760        }
4761        mExtras.putDoubleArray(name, value);
4762        return this;
4763    }
4764
4765    /**
4766     * Add extended data to the intent.  The name must include a package
4767     * prefix, for example the app com.android.contacts would use names
4768     * like "com.android.contacts.ShowAll".
4769     *
4770     * @param name The name of the extra data, with package prefix.
4771     * @param value The String array data value.
4772     *
4773     * @return Returns the same Intent object, for chaining multiple calls
4774     * into a single statement.
4775     *
4776     * @see #putExtras
4777     * @see #removeExtra
4778     * @see #getStringArrayExtra(String)
4779     */
4780    public Intent putExtra(String name, String[] value) {
4781        if (mExtras == null) {
4782            mExtras = new Bundle();
4783        }
4784        mExtras.putStringArray(name, value);
4785        return this;
4786    }
4787
4788    /**
4789     * Add extended data to the intent.  The name must include a package
4790     * prefix, for example the app com.android.contacts would use names
4791     * like "com.android.contacts.ShowAll".
4792     *
4793     * @param name The name of the extra data, with package prefix.
4794     * @param value The CharSequence array data value.
4795     *
4796     * @return Returns the same Intent object, for chaining multiple calls
4797     * into a single statement.
4798     *
4799     * @see #putExtras
4800     * @see #removeExtra
4801     * @see #getCharSequenceArrayExtra(String)
4802     */
4803    public Intent putExtra(String name, CharSequence[] value) {
4804        if (mExtras == null) {
4805            mExtras = new Bundle();
4806        }
4807        mExtras.putCharSequenceArray(name, value);
4808        return this;
4809    }
4810
4811    /**
4812     * Add extended data to the intent.  The name must include a package
4813     * prefix, for example the app com.android.contacts would use names
4814     * like "com.android.contacts.ShowAll".
4815     *
4816     * @param name The name of the extra data, with package prefix.
4817     * @param value The Bundle data value.
4818     *
4819     * @return Returns the same Intent object, for chaining multiple calls
4820     * into a single statement.
4821     *
4822     * @see #putExtras
4823     * @see #removeExtra
4824     * @see #getBundleExtra(String)
4825     */
4826    public Intent putExtra(String name, Bundle value) {
4827        if (mExtras == null) {
4828            mExtras = new Bundle();
4829        }
4830        mExtras.putBundle(name, value);
4831        return this;
4832    }
4833
4834    /**
4835     * Add extended data to the intent.  The name must include a package
4836     * prefix, for example the app com.android.contacts would use names
4837     * like "com.android.contacts.ShowAll".
4838     *
4839     * @param name The name of the extra data, with package prefix.
4840     * @param value The IBinder data value.
4841     *
4842     * @return Returns the same Intent object, for chaining multiple calls
4843     * into a single statement.
4844     *
4845     * @see #putExtras
4846     * @see #removeExtra
4847     * @see #getIBinderExtra(String)
4848     *
4849     * @deprecated
4850     * @hide
4851     */
4852    @Deprecated
4853    public Intent putExtra(String name, IBinder value) {
4854        if (mExtras == null) {
4855            mExtras = new Bundle();
4856        }
4857        mExtras.putIBinder(name, value);
4858        return this;
4859    }
4860
4861    /**
4862     * Copy all extras in 'src' in to this intent.
4863     *
4864     * @param src Contains the extras to copy.
4865     *
4866     * @see #putExtra
4867     */
4868    public Intent putExtras(Intent src) {
4869        if (src.mExtras != null) {
4870            if (mExtras == null) {
4871                mExtras = new Bundle(src.mExtras);
4872            } else {
4873                mExtras.putAll(src.mExtras);
4874            }
4875        }
4876        return this;
4877    }
4878
4879    /**
4880     * Add a set of extended data to the intent.  The keys must include a package
4881     * prefix, for example the app com.android.contacts would use names
4882     * like "com.android.contacts.ShowAll".
4883     *
4884     * @param extras The Bundle of extras to add to this intent.
4885     *
4886     * @see #putExtra
4887     * @see #removeExtra
4888     */
4889    public Intent putExtras(Bundle extras) {
4890        if (mExtras == null) {
4891            mExtras = new Bundle();
4892        }
4893        mExtras.putAll(extras);
4894        return this;
4895    }
4896
4897    /**
4898     * Completely replace the extras in the Intent with the extras in the
4899     * given Intent.
4900     *
4901     * @param src The exact extras contained in this Intent are copied
4902     * into the target intent, replacing any that were previously there.
4903     */
4904    public Intent replaceExtras(Intent src) {
4905        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4906        return this;
4907    }
4908
4909    /**
4910     * Completely replace the extras in the Intent with the given Bundle of
4911     * extras.
4912     *
4913     * @param extras The new set of extras in the Intent, or null to erase
4914     * all extras.
4915     */
4916    public Intent replaceExtras(Bundle extras) {
4917        mExtras = extras != null ? new Bundle(extras) : null;
4918        return this;
4919    }
4920
4921    /**
4922     * Remove extended data from the intent.
4923     *
4924     * @see #putExtra
4925     */
4926    public void removeExtra(String name) {
4927        if (mExtras != null) {
4928            mExtras.remove(name);
4929            if (mExtras.size() == 0) {
4930                mExtras = null;
4931            }
4932        }
4933    }
4934
4935    /**
4936     * Set special flags controlling how this intent is handled.  Most values
4937     * here depend on the type of component being executed by the Intent,
4938     * specifically the FLAG_ACTIVITY_* flags are all for use with
4939     * {@link Context#startActivity Context.startActivity()} and the
4940     * FLAG_RECEIVER_* flags are all for use with
4941     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4942     *
4943     * <p>See the
4944     * <a href="{@docRoot}guide/topics/fundamentals/tasks-and-back-stack.html">Tasks and Back
4945     * Stack</a> documentation for important information on how some of these options impact
4946     * the behavior of your application.
4947     *
4948     * @param flags The desired flags.
4949     *
4950     * @return Returns the same Intent object, for chaining multiple calls
4951     * into a single statement.
4952     *
4953     * @see #getFlags
4954     * @see #addFlags
4955     *
4956     * @see #FLAG_GRANT_READ_URI_PERMISSION
4957     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4958     * @see #FLAG_DEBUG_LOG_RESOLUTION
4959     * @see #FLAG_FROM_BACKGROUND
4960     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4961     * @see #FLAG_ACTIVITY_CLEAR_TASK
4962     * @see #FLAG_ACTIVITY_CLEAR_TOP
4963     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4964     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4965     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4966     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4967     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4968     * @see #FLAG_ACTIVITY_NEW_TASK
4969     * @see #FLAG_ACTIVITY_NO_ANIMATION
4970     * @see #FLAG_ACTIVITY_NO_HISTORY
4971     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4972     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4973     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4974     * @see #FLAG_ACTIVITY_REORDER_TO_FRONT
4975     * @see #FLAG_ACTIVITY_SINGLE_TOP
4976     * @see #FLAG_ACTIVITY_TASK_ON_HOME
4977     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4978     */
4979    public Intent setFlags(int flags) {
4980        mFlags = flags;
4981        return this;
4982    }
4983
4984    /**
4985     * Add additional flags to the intent (or with existing flags
4986     * value).
4987     *
4988     * @param flags The new flags to set.
4989     *
4990     * @return Returns the same Intent object, for chaining multiple calls
4991     * into a single statement.
4992     *
4993     * @see #setFlags
4994     */
4995    public Intent addFlags(int flags) {
4996        mFlags |= flags;
4997        return this;
4998    }
4999
5000    /**
5001     * (Usually optional) Set an explicit application package name that limits
5002     * the components this Intent will resolve to.  If left to the default
5003     * value of null, all components in all applications will considered.
5004     * If non-null, the Intent can only match the components in the given
5005     * application package.
5006     *
5007     * @param packageName The name of the application package to handle the
5008     * intent, or null to allow any application package.
5009     *
5010     * @return Returns the same Intent object, for chaining multiple calls
5011     * into a single statement.
5012     *
5013     * @see #getPackage
5014     * @see #resolveActivity
5015     */
5016    public Intent setPackage(String packageName) {
5017        mPackage = packageName;
5018        return this;
5019    }
5020
5021    /**
5022     * (Usually optional) Explicitly set the component to handle the intent.
5023     * If left with the default value of null, the system will determine the
5024     * appropriate class to use based on the other fields (action, data,
5025     * type, categories) in the Intent.  If this class is defined, the
5026     * specified class will always be used regardless of the other fields.  You
5027     * should only set this value when you know you absolutely want a specific
5028     * class to be used; otherwise it is better to let the system find the
5029     * appropriate class so that you will respect the installed applications
5030     * and user preferences.
5031     *
5032     * @param component The name of the application component to handle the
5033     * intent, or null to let the system find one for you.
5034     *
5035     * @return Returns the same Intent object, for chaining multiple calls
5036     * into a single statement.
5037     *
5038     * @see #setClass
5039     * @see #setClassName(Context, String)
5040     * @see #setClassName(String, String)
5041     * @see #getComponent
5042     * @see #resolveActivity
5043     */
5044    public Intent setComponent(ComponentName component) {
5045        mComponent = component;
5046        return this;
5047    }
5048
5049    /**
5050     * Convenience for calling {@link #setComponent} with an
5051     * explicit class name.
5052     *
5053     * @param packageContext A Context of the application package implementing
5054     * this class.
5055     * @param className The name of a class inside of the application package
5056     * that will be used as the component for this Intent.
5057     *
5058     * @return Returns the same Intent object, for chaining multiple calls
5059     * into a single statement.
5060     *
5061     * @see #setComponent
5062     * @see #setClass
5063     */
5064    public Intent setClassName(Context packageContext, String className) {
5065        mComponent = new ComponentName(packageContext, className);
5066        return this;
5067    }
5068
5069    /**
5070     * Convenience for calling {@link #setComponent} with an
5071     * explicit application package name and class name.
5072     *
5073     * @param packageName The name of the package implementing the desired
5074     * component.
5075     * @param className The name of a class inside of the application package
5076     * that will be used as the component for this Intent.
5077     *
5078     * @return Returns the same Intent object, for chaining multiple calls
5079     * into a single statement.
5080     *
5081     * @see #setComponent
5082     * @see #setClass
5083     */
5084    public Intent setClassName(String packageName, String className) {
5085        mComponent = new ComponentName(packageName, className);
5086        return this;
5087    }
5088
5089    /**
5090     * Convenience for calling {@link #setComponent(ComponentName)} with the
5091     * name returned by a {@link Class} object.
5092     *
5093     * @param packageContext A Context of the application package implementing
5094     * this class.
5095     * @param cls The class name to set, equivalent to
5096     *            <code>setClassName(context, cls.getName())</code>.
5097     *
5098     * @return Returns the same Intent object, for chaining multiple calls
5099     * into a single statement.
5100     *
5101     * @see #setComponent
5102     */
5103    public Intent setClass(Context packageContext, Class<?> cls) {
5104        mComponent = new ComponentName(packageContext, cls);
5105        return this;
5106    }
5107
5108    /**
5109     * Set the bounds of the sender of this intent, in screen coordinates.  This can be
5110     * used as a hint to the receiver for animations and the like.  Null means that there
5111     * is no source bounds.
5112     */
5113    public void setSourceBounds(Rect r) {
5114        if (r != null) {
5115            mSourceBounds = new Rect(r);
5116        } else {
5117            r = null;
5118        }
5119    }
5120
5121    /**
5122     * Use with {@link #fillIn} to allow the current action value to be
5123     * overwritten, even if it is already set.
5124     */
5125    public static final int FILL_IN_ACTION = 1<<0;
5126
5127    /**
5128     * Use with {@link #fillIn} to allow the current data or type value
5129     * overwritten, even if it is already set.
5130     */
5131    public static final int FILL_IN_DATA = 1<<1;
5132
5133    /**
5134     * Use with {@link #fillIn} to allow the current categories to be
5135     * overwritten, even if they are already set.
5136     */
5137    public static final int FILL_IN_CATEGORIES = 1<<2;
5138
5139    /**
5140     * Use with {@link #fillIn} to allow the current component value to be
5141     * overwritten, even if it is already set.
5142     */
5143    public static final int FILL_IN_COMPONENT = 1<<3;
5144
5145    /**
5146     * Use with {@link #fillIn} to allow the current package value to be
5147     * overwritten, even if it is already set.
5148     */
5149    public static final int FILL_IN_PACKAGE = 1<<4;
5150
5151    /**
5152     * Use with {@link #fillIn} to allow the current package value to be
5153     * overwritten, even if it is already set.
5154     */
5155    public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
5156
5157    /**
5158     * Copy the contents of <var>other</var> in to this object, but only
5159     * where fields are not defined by this object.  For purposes of a field
5160     * being defined, the following pieces of data in the Intent are
5161     * considered to be separate fields:
5162     *
5163     * <ul>
5164     * <li> action, as set by {@link #setAction}.
5165     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
5166     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
5167     * <li> categories, as set by {@link #addCategory}.
5168     * <li> package, as set by {@link #setPackage}.
5169     * <li> component, as set by {@link #setComponent(ComponentName)} or
5170     * related methods.
5171     * <li> source bounds, as set by {@link #setSourceBounds}
5172     * <li> each top-level name in the associated extras.
5173     * </ul>
5174     *
5175     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
5176     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
5177     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
5178     * corresponding field will not be replaced if it is already set.
5179     *
5180     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
5181     * specified.
5182     *
5183     * <p>For example, consider Intent A with {data="foo", categories="bar"}
5184     * and Intent B with {action="gotit", data-type="some/thing",
5185     * categories="one","two"}.
5186     *
5187     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
5188     * containing: {action="gotit", data-type="some/thing",
5189     * categories="bar"}.
5190     *
5191     * @param other Another Intent whose values are to be used to fill in
5192     * the current one.
5193     * @param flags Options to control which fields can be filled in.
5194     *
5195     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
5196     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
5197     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
5198     */
5199    public int fillIn(Intent other, int flags) {
5200        int changes = 0;
5201        if (other.mAction != null
5202                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
5203            mAction = other.mAction;
5204            changes |= FILL_IN_ACTION;
5205        }
5206        if ((other.mData != null || other.mType != null)
5207                && ((mData == null && mType == null)
5208                        || (flags&FILL_IN_DATA) != 0)) {
5209            mData = other.mData;
5210            mType = other.mType;
5211            changes |= FILL_IN_DATA;
5212        }
5213        if (other.mCategories != null
5214                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
5215            if (other.mCategories != null) {
5216                mCategories = new HashSet<String>(other.mCategories);
5217            }
5218            changes |= FILL_IN_CATEGORIES;
5219        }
5220        if (other.mPackage != null
5221                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
5222            mPackage = other.mPackage;
5223            changes |= FILL_IN_PACKAGE;
5224        }
5225        // Component is special: it can -only- be set if explicitly allowed,
5226        // since otherwise the sender could force the intent somewhere the
5227        // originator didn't intend.
5228        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
5229            mComponent = other.mComponent;
5230            changes |= FILL_IN_COMPONENT;
5231        }
5232        mFlags |= other.mFlags;
5233        if (other.mSourceBounds != null
5234                && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
5235            mSourceBounds = new Rect(other.mSourceBounds);
5236            changes |= FILL_IN_SOURCE_BOUNDS;
5237        }
5238        if (mExtras == null) {
5239            if (other.mExtras != null) {
5240                mExtras = new Bundle(other.mExtras);
5241            }
5242        } else if (other.mExtras != null) {
5243            try {
5244                Bundle newb = new Bundle(other.mExtras);
5245                newb.putAll(mExtras);
5246                mExtras = newb;
5247            } catch (RuntimeException e) {
5248                // Modifying the extras can cause us to unparcel the contents
5249                // of the bundle, and if we do this in the system process that
5250                // may fail.  We really should handle this (i.e., the Bundle
5251                // impl shouldn't be on top of a plain map), but for now just
5252                // ignore it and keep the original contents. :(
5253                Log.w("Intent", "Failure filling in extras", e);
5254            }
5255        }
5256        return changes;
5257    }
5258
5259    /**
5260     * Wrapper class holding an Intent and implementing comparisons on it for
5261     * the purpose of filtering.  The class implements its
5262     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
5263     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
5264     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
5265     * on the wrapped Intent.
5266     */
5267    public static final class FilterComparison {
5268        private final Intent mIntent;
5269        private final int mHashCode;
5270
5271        public FilterComparison(Intent intent) {
5272            mIntent = intent;
5273            mHashCode = intent.filterHashCode();
5274        }
5275
5276        /**
5277         * Return the Intent that this FilterComparison represents.
5278         * @return Returns the Intent held by the FilterComparison.  Do
5279         * not modify!
5280         */
5281        public Intent getIntent() {
5282            return mIntent;
5283        }
5284
5285        @Override
5286        public boolean equals(Object obj) {
5287            if (obj instanceof FilterComparison) {
5288                Intent other = ((FilterComparison)obj).mIntent;
5289                return mIntent.filterEquals(other);
5290            }
5291            return false;
5292        }
5293
5294        @Override
5295        public int hashCode() {
5296            return mHashCode;
5297        }
5298    }
5299
5300    /**
5301     * Determine if two intents are the same for the purposes of intent
5302     * resolution (filtering). That is, if their action, data, type,
5303     * class, and categories are the same.  This does <em>not</em> compare
5304     * any extra data included in the intents.
5305     *
5306     * @param other The other Intent to compare against.
5307     *
5308     * @return Returns true if action, data, type, class, and categories
5309     *         are the same.
5310     */
5311    public boolean filterEquals(Intent other) {
5312        if (other == null) {
5313            return false;
5314        }
5315        if (mAction != other.mAction) {
5316            if (mAction != null) {
5317                if (!mAction.equals(other.mAction)) {
5318                    return false;
5319                }
5320            } else {
5321                if (!other.mAction.equals(mAction)) {
5322                    return false;
5323                }
5324            }
5325        }
5326        if (mData != other.mData) {
5327            if (mData != null) {
5328                if (!mData.equals(other.mData)) {
5329                    return false;
5330                }
5331            } else {
5332                if (!other.mData.equals(mData)) {
5333                    return false;
5334                }
5335            }
5336        }
5337        if (mType != other.mType) {
5338            if (mType != null) {
5339                if (!mType.equals(other.mType)) {
5340                    return false;
5341                }
5342            } else {
5343                if (!other.mType.equals(mType)) {
5344                    return false;
5345                }
5346            }
5347        }
5348        if (mPackage != other.mPackage) {
5349            if (mPackage != null) {
5350                if (!mPackage.equals(other.mPackage)) {
5351                    return false;
5352                }
5353            } else {
5354                if (!other.mPackage.equals(mPackage)) {
5355                    return false;
5356                }
5357            }
5358        }
5359        if (mComponent != other.mComponent) {
5360            if (mComponent != null) {
5361                if (!mComponent.equals(other.mComponent)) {
5362                    return false;
5363                }
5364            } else {
5365                if (!other.mComponent.equals(mComponent)) {
5366                    return false;
5367                }
5368            }
5369        }
5370        if (mCategories != other.mCategories) {
5371            if (mCategories != null) {
5372                if (!mCategories.equals(other.mCategories)) {
5373                    return false;
5374                }
5375            } else {
5376                if (!other.mCategories.equals(mCategories)) {
5377                    return false;
5378                }
5379            }
5380        }
5381
5382        return true;
5383    }
5384
5385    /**
5386     * Generate hash code that matches semantics of filterEquals().
5387     *
5388     * @return Returns the hash value of the action, data, type, class, and
5389     *         categories.
5390     *
5391     * @see #filterEquals
5392     */
5393    public int filterHashCode() {
5394        int code = 0;
5395        if (mAction != null) {
5396            code += mAction.hashCode();
5397        }
5398        if (mData != null) {
5399            code += mData.hashCode();
5400        }
5401        if (mType != null) {
5402            code += mType.hashCode();
5403        }
5404        if (mPackage != null) {
5405            code += mPackage.hashCode();
5406        }
5407        if (mComponent != null) {
5408            code += mComponent.hashCode();
5409        }
5410        if (mCategories != null) {
5411            code += mCategories.hashCode();
5412        }
5413        return code;
5414    }
5415
5416    @Override
5417    public String toString() {
5418        StringBuilder   b = new StringBuilder(128);
5419
5420        b.append("Intent { ");
5421        toShortString(b, true, true);
5422        b.append(" }");
5423
5424        return b.toString();
5425    }
5426
5427    /** @hide */
5428    public String toShortString(boolean comp, boolean extras) {
5429        StringBuilder   b = new StringBuilder(128);
5430        toShortString(b, comp, extras);
5431        return b.toString();
5432    }
5433
5434    /** @hide */
5435    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
5436        boolean first = true;
5437        if (mAction != null) {
5438            b.append("act=").append(mAction);
5439            first = false;
5440        }
5441        if (mCategories != null) {
5442            if (!first) {
5443                b.append(' ');
5444            }
5445            first = false;
5446            b.append("cat=[");
5447            Iterator<String> i = mCategories.iterator();
5448            boolean didone = false;
5449            while (i.hasNext()) {
5450                if (didone) b.append(",");
5451                didone = true;
5452                b.append(i.next());
5453            }
5454            b.append("]");
5455        }
5456        if (mData != null) {
5457            if (!first) {
5458                b.append(' ');
5459            }
5460            first = false;
5461            b.append("dat=");
5462            String scheme = mData.getScheme();
5463            if (scheme != null) {
5464                if (scheme.equalsIgnoreCase("tel")) {
5465                    b.append("tel:xxx-xxx-xxxx");
5466                } else if (scheme.equalsIgnoreCase("smsto")) {
5467                    b.append("smsto:xxx-xxx-xxxx");
5468                } else {
5469                    b.append(mData);
5470                }
5471            } else {
5472                b.append(mData);
5473            }
5474        }
5475        if (mType != null) {
5476            if (!first) {
5477                b.append(' ');
5478            }
5479            first = false;
5480            b.append("typ=").append(mType);
5481        }
5482        if (mFlags != 0) {
5483            if (!first) {
5484                b.append(' ');
5485            }
5486            first = false;
5487            b.append("flg=0x").append(Integer.toHexString(mFlags));
5488        }
5489        if (mPackage != null) {
5490            if (!first) {
5491                b.append(' ');
5492            }
5493            first = false;
5494            b.append("pkg=").append(mPackage);
5495        }
5496        if (comp && mComponent != null) {
5497            if (!first) {
5498                b.append(' ');
5499            }
5500            first = false;
5501            b.append("cmp=").append(mComponent.flattenToShortString());
5502        }
5503        if (mSourceBounds != null) {
5504            if (!first) {
5505                b.append(' ');
5506            }
5507            first = false;
5508            b.append("bnds=").append(mSourceBounds.toShortString());
5509        }
5510        if (extras && mExtras != null) {
5511            if (!first) {
5512                b.append(' ');
5513            }
5514            first = false;
5515            b.append("(has extras)");
5516        }
5517    }
5518
5519    /**
5520     * Call {@link #toUri} with 0 flags.
5521     * @deprecated Use {@link #toUri} instead.
5522     */
5523    @Deprecated
5524    public String toURI() {
5525        return toUri(0);
5526    }
5527
5528    /**
5529     * Convert this Intent into a String holding a URI representation of it.
5530     * The returned URI string has been properly URI encoded, so it can be
5531     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
5532     * Intent's data as the base URI, with an additional fragment describing
5533     * the action, categories, type, flags, package, component, and extras.
5534     *
5535     * <p>You can convert the returned string back to an Intent with
5536     * {@link #getIntent}.
5537     *
5538     * @param flags Additional operating flags.  Either 0 or
5539     * {@link #URI_INTENT_SCHEME}.
5540     *
5541     * @return Returns a URI encoding URI string describing the entire contents
5542     * of the Intent.
5543     */
5544    public String toUri(int flags) {
5545        StringBuilder uri = new StringBuilder(128);
5546        String scheme = null;
5547        if (mData != null) {
5548            String data = mData.toString();
5549            if ((flags&URI_INTENT_SCHEME) != 0) {
5550                final int N = data.length();
5551                for (int i=0; i<N; i++) {
5552                    char c = data.charAt(i);
5553                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
5554                            || c == '.' || c == '-') {
5555                        continue;
5556                    }
5557                    if (c == ':' && i > 0) {
5558                        // Valid scheme.
5559                        scheme = data.substring(0, i);
5560                        uri.append("intent:");
5561                        data = data.substring(i+1);
5562                        break;
5563                    }
5564
5565                    // No scheme.
5566                    break;
5567                }
5568            }
5569            uri.append(data);
5570
5571        } else if ((flags&URI_INTENT_SCHEME) != 0) {
5572            uri.append("intent:");
5573        }
5574
5575        uri.append("#Intent;");
5576
5577        if (scheme != null) {
5578            uri.append("scheme=").append(scheme).append(';');
5579        }
5580        if (mAction != null) {
5581            uri.append("action=").append(Uri.encode(mAction)).append(';');
5582        }
5583        if (mCategories != null) {
5584            for (String category : mCategories) {
5585                uri.append("category=").append(Uri.encode(category)).append(';');
5586            }
5587        }
5588        if (mType != null) {
5589            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
5590        }
5591        if (mFlags != 0) {
5592            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
5593        }
5594        if (mPackage != null) {
5595            uri.append("package=").append(Uri.encode(mPackage)).append(';');
5596        }
5597        if (mComponent != null) {
5598            uri.append("component=").append(Uri.encode(
5599                    mComponent.flattenToShortString(), "/")).append(';');
5600        }
5601        if (mSourceBounds != null) {
5602            uri.append("sourceBounds=")
5603                    .append(Uri.encode(mSourceBounds.flattenToString()))
5604                    .append(';');
5605        }
5606        if (mExtras != null) {
5607            for (String key : mExtras.keySet()) {
5608                final Object value = mExtras.get(key);
5609                char entryType =
5610                        value instanceof String    ? 'S' :
5611                        value instanceof Boolean   ? 'B' :
5612                        value instanceof Byte      ? 'b' :
5613                        value instanceof Character ? 'c' :
5614                        value instanceof Double    ? 'd' :
5615                        value instanceof Float     ? 'f' :
5616                        value instanceof Integer   ? 'i' :
5617                        value instanceof Long      ? 'l' :
5618                        value instanceof Short     ? 's' :
5619                        '\0';
5620
5621                if (entryType != '\0') {
5622                    uri.append(entryType);
5623                    uri.append('.');
5624                    uri.append(Uri.encode(key));
5625                    uri.append('=');
5626                    uri.append(Uri.encode(value.toString()));
5627                    uri.append(';');
5628                }
5629            }
5630        }
5631
5632        uri.append("end");
5633
5634        return uri.toString();
5635    }
5636
5637    public int describeContents() {
5638        return (mExtras != null) ? mExtras.describeContents() : 0;
5639    }
5640
5641    public void writeToParcel(Parcel out, int flags) {
5642        out.writeString(mAction);
5643        Uri.writeToParcel(out, mData);
5644        out.writeString(mType);
5645        out.writeInt(mFlags);
5646        out.writeString(mPackage);
5647        ComponentName.writeToParcel(mComponent, out);
5648
5649        if (mSourceBounds != null) {
5650            out.writeInt(1);
5651            mSourceBounds.writeToParcel(out, flags);
5652        } else {
5653            out.writeInt(0);
5654        }
5655
5656        if (mCategories != null) {
5657            out.writeInt(mCategories.size());
5658            for (String category : mCategories) {
5659                out.writeString(category);
5660            }
5661        } else {
5662            out.writeInt(0);
5663        }
5664
5665        out.writeBundle(mExtras);
5666    }
5667
5668    public static final Parcelable.Creator<Intent> CREATOR
5669            = new Parcelable.Creator<Intent>() {
5670        public Intent createFromParcel(Parcel in) {
5671            return new Intent(in);
5672        }
5673        public Intent[] newArray(int size) {
5674            return new Intent[size];
5675        }
5676    };
5677
5678    /** @hide */
5679    protected Intent(Parcel in) {
5680        readFromParcel(in);
5681    }
5682
5683    public void readFromParcel(Parcel in) {
5684        setAction(in.readString());
5685        mData = Uri.CREATOR.createFromParcel(in);
5686        mType = in.readString();
5687        mFlags = in.readInt();
5688        mPackage = in.readString();
5689        mComponent = ComponentName.readFromParcel(in);
5690
5691        if (in.readInt() != 0) {
5692            mSourceBounds = Rect.CREATOR.createFromParcel(in);
5693        }
5694
5695        int N = in.readInt();
5696        if (N > 0) {
5697            mCategories = new HashSet<String>();
5698            int i;
5699            for (i=0; i<N; i++) {
5700                mCategories.add(in.readString().intern());
5701            }
5702        } else {
5703            mCategories = null;
5704        }
5705
5706        mExtras = in.readBundle();
5707    }
5708
5709    /**
5710     * Parses the "intent" element (and its children) from XML and instantiates
5711     * an Intent object.  The given XML parser should be located at the tag
5712     * where parsing should start (often named "intent"), from which the
5713     * basic action, data, type, and package and class name will be
5714     * retrieved.  The function will then parse in to any child elements,
5715     * looking for <category android:name="xxx"> tags to add categories and
5716     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5717     * to the intent.
5718     *
5719     * @param resources The Resources to use when inflating resources.
5720     * @param parser The XML parser pointing at an "intent" tag.
5721     * @param attrs The AttributeSet interface for retrieving extended
5722     * attribute data at the current <var>parser</var> location.
5723     * @return An Intent object matching the XML data.
5724     * @throws XmlPullParserException If there was an XML parsing error.
5725     * @throws IOException If there was an I/O error.
5726     */
5727    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5728            throws XmlPullParserException, IOException {
5729        Intent intent = new Intent();
5730
5731        TypedArray sa = resources.obtainAttributes(attrs,
5732                com.android.internal.R.styleable.Intent);
5733
5734        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5735
5736        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5737        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5738        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5739
5740        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5741        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5742        if (packageName != null && className != null) {
5743            intent.setComponent(new ComponentName(packageName, className));
5744        }
5745
5746        sa.recycle();
5747
5748        int outerDepth = parser.getDepth();
5749        int type;
5750        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5751               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5752            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5753                continue;
5754            }
5755
5756            String nodeName = parser.getName();
5757            if (nodeName.equals("category")) {
5758                sa = resources.obtainAttributes(attrs,
5759                        com.android.internal.R.styleable.IntentCategory);
5760                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5761                sa.recycle();
5762
5763                if (cat != null) {
5764                    intent.addCategory(cat);
5765                }
5766                XmlUtils.skipCurrentTag(parser);
5767
5768            } else if (nodeName.equals("extra")) {
5769                if (intent.mExtras == null) {
5770                    intent.mExtras = new Bundle();
5771                }
5772                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5773                XmlUtils.skipCurrentTag(parser);
5774
5775            } else {
5776                XmlUtils.skipCurrentTag(parser);
5777            }
5778        }
5779
5780        return intent;
5781    }
5782}
5783