Intent.java revision 621e17de87f18003aba2dedb719a2941020a7902
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     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
863     * that no URI is supplied in the intent, as there are no constraints on
864     * where the returned data originally comes from.  You may also include the
865     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
866     * opened as a stream.
867     * <p>
868     * Output: The URI of the item that was picked.  This must be a content:
869     * URI so that any receiver can access it.
870     */
871    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
872    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
873    /**
874     * Activity Action: Dial a number as specified by the data.  This shows a
875     * UI with the number being dialed, allowing the user to explicitly
876     * initiate the call.
877     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
878     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
879     * number.
880     * <p>Output: nothing.
881     */
882    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
883    public static final String ACTION_DIAL = "android.intent.action.DIAL";
884    /**
885     * Activity Action: Perform a call to someone specified by the data.
886     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
887     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
888     * number.
889     * <p>Output: nothing.
890     *
891     * <p>Note: there will be restrictions on which applications can initiate a
892     * call; most applications should use the {@link #ACTION_DIAL}.
893     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
894     * numbers.  Applications can <strong>dial</strong> emergency numbers using
895     * {@link #ACTION_DIAL}, however.
896     */
897    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
898    public static final String ACTION_CALL = "android.intent.action.CALL";
899    /**
900     * Activity Action: Perform a call to an emergency number specified by the
901     * data.
902     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
903     * tel: URI of an explicit phone number.
904     * <p>Output: nothing.
905     * @hide
906     */
907    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
908    /**
909     * Activity action: Perform a call to any number (emergency or not)
910     * specified by the data.
911     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
912     * tel: URI of an explicit phone number.
913     * <p>Output: nothing.
914     * @hide
915     */
916    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
917    /**
918     * Activity Action: Send a message to someone specified by the data.
919     * <p>Input: {@link #getData} is URI describing the target.
920     * <p>Output: nothing.
921     */
922    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
923    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
924    /**
925     * Activity Action: Deliver some data to someone else.  Who the data is
926     * being delivered to is not specified; it is up to the receiver of this
927     * action to ask the user where the data should be sent.
928     * <p>
929     * When launching a SEND intent, you should usually wrap it in a chooser
930     * (through {@link #createChooser}), which will give the proper interface
931     * for the user to pick how to send your data and allow you to specify
932     * a prompt indicating what they are doing.
933     * <p>
934     * Input: {@link #getType} is the MIME type of the data being sent.
935     * get*Extra can have either a {@link #EXTRA_TEXT}
936     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
937     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
938     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
939     * if the MIME type is unknown (this will only allow senders that can
940     * handle generic data streams).
941     * <p>
942     * Optional standard extras, which may be interpreted by some recipients as
943     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
944     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
945     * <p>
946     * Output: nothing.
947     */
948    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
949    public static final String ACTION_SEND = "android.intent.action.SEND";
950    /**
951     * Activity Action: Deliver multiple data to someone else.
952     * <p>
953     * Like ACTION_SEND, except the data is multiple.
954     * <p>
955     * Input: {@link #getType} is the MIME type of the data being sent.
956     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
957     * #EXTRA_STREAM} field, containing the data to be sent.
958     * <p>
959     * Multiple types are supported, and receivers should handle mixed types
960     * whenever possible. The right way for the receiver to check them is to
961     * use the content resolver on each URI. The intent sender should try to
962     * put the most concrete mime type in the intent type, but it can fall
963     * back to {@literal <type>/*} or {@literal *}/* as needed.
964     * <p>
965     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
966     * be image/jpg, but if you are sending image/jpg and image/png, then the
967     * intent's type should be image/*.
968     * <p>
969     * Optional standard extras, which may be interpreted by some recipients as
970     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
971     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
972     * <p>
973     * Output: nothing.
974     */
975    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
976    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
977    /**
978     * Activity Action: Handle an incoming phone call.
979     * <p>Input: nothing.
980     * <p>Output: nothing.
981     */
982    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
983    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
984    /**
985     * Activity Action: Insert an empty item into the given container.
986     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
987     * in which to place the data.
988     * <p>Output: URI of the new data that was created.
989     */
990    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
991    public static final String ACTION_INSERT = "android.intent.action.INSERT";
992    /**
993     * Activity Action: Create a new item in the given container, initializing it
994     * from the current contents of the clipboard.
995     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
996     * in which to place the data.
997     * <p>Output: URI of the new data that was created.
998     */
999    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1000    public static final String ACTION_PASTE = "android.intent.action.PASTE";
1001    /**
1002     * Activity Action: Delete the given data from its container.
1003     * <p>Input: {@link #getData} is URI of data to be deleted.
1004     * <p>Output: nothing.
1005     */
1006    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1007    public static final String ACTION_DELETE = "android.intent.action.DELETE";
1008    /**
1009     * Activity Action: Run the data, whatever that means.
1010     * <p>Input: ?  (Note: this is currently specific to the test harness.)
1011     * <p>Output: nothing.
1012     */
1013    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1014    public static final String ACTION_RUN = "android.intent.action.RUN";
1015    /**
1016     * Activity Action: Perform a data synchronization.
1017     * <p>Input: ?
1018     * <p>Output: ?
1019     */
1020    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1021    public static final String ACTION_SYNC = "android.intent.action.SYNC";
1022    /**
1023     * Activity Action: Pick an activity given an intent, returning the class
1024     * selected.
1025     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
1026     * used with {@link PackageManager#queryIntentActivities} to determine the
1027     * set of activities from which to pick.
1028     * <p>Output: Class name of the activity that was selected.
1029     */
1030    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1031    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
1032    /**
1033     * Activity Action: Perform a search.
1034     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1035     * is the text to search for.  If empty, simply
1036     * enter your search results Activity with the search UI activated.
1037     * <p>Output: nothing.
1038     */
1039    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1040    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1041    /**
1042     * Activity Action: Start the platform-defined tutorial
1043     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1044     * is the text to search for.  If empty, simply
1045     * enter your search results Activity with the search UI activated.
1046     * <p>Output: nothing.
1047     */
1048    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1049    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1050    /**
1051     * Activity Action: Perform a web search.
1052     * <p>
1053     * Input: {@link android.app.SearchManager#QUERY
1054     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1055     * a url starts with http or https, the site will be opened. If it is plain
1056     * text, Google search will be applied.
1057     * <p>
1058     * Output: nothing.
1059     */
1060    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1061    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1062    /**
1063     * Activity Action: List all available applications
1064     * <p>Input: Nothing.
1065     * <p>Output: nothing.
1066     */
1067    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1068    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1069    /**
1070     * Activity Action: Show settings for choosing wallpaper
1071     * <p>Input: Nothing.
1072     * <p>Output: Nothing.
1073     */
1074    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1075    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1076
1077    /**
1078     * Activity Action: Show activity for reporting a bug.
1079     * <p>Input: Nothing.
1080     * <p>Output: Nothing.
1081     */
1082    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1083    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1084
1085    /**
1086     *  Activity Action: Main entry point for factory tests.  Only used when
1087     *  the device is booting in factory test node.  The implementing package
1088     *  must be installed in the system image.
1089     *  <p>Input: nothing
1090     *  <p>Output: nothing
1091     */
1092    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1093
1094    /**
1095     * Activity Action: The user pressed the "call" button to go to the dialer
1096     * or other appropriate UI for placing a call.
1097     * <p>Input: Nothing.
1098     * <p>Output: Nothing.
1099     */
1100    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1101    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1102
1103    /**
1104     * Activity Action: Start Voice Command.
1105     * <p>Input: Nothing.
1106     * <p>Output: Nothing.
1107     */
1108    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1109    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1110
1111    /**
1112     * Activity Action: Start action associated with long pressing on the
1113     * search key.
1114     * <p>Input: Nothing.
1115     * <p>Output: Nothing.
1116     */
1117    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1118    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1119
1120    /**
1121     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1122     * This intent is delivered to the package which installed the application, usually
1123     * the Market.
1124     * <p>Input: No data is specified. The bug report is passed in using
1125     * an {@link #EXTRA_BUG_REPORT} field.
1126     * <p>Output: Nothing.
1127     * @hide
1128     */
1129    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1130    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1131
1132    /**
1133     * Activity Action: Show power usage information to the user.
1134     * <p>Input: Nothing.
1135     * <p>Output: Nothing.
1136     */
1137    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1138    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1139
1140    /**
1141     * Activity Action: Setup wizard to launch after a platform update.  This
1142     * activity should have a string meta-data field associated with it,
1143     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1144     * the platform for setup.  The activity will be launched only if
1145     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1146     * same value.
1147     * <p>Input: Nothing.
1148     * <p>Output: Nothing.
1149     * @hide
1150     */
1151    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1152    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1153
1154    /**
1155     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1156     * describing the last run version of the platform that was setup.
1157     * @hide
1158     */
1159    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1160
1161    // ---------------------------------------------------------------------
1162    // ---------------------------------------------------------------------
1163    // Standard intent broadcast actions (see action variable).
1164
1165    /**
1166     * Broadcast Action: Sent after the screen turns off.
1167     *
1168     * <p class="note">This is a protected intent that can only be sent
1169     * by the system.
1170     */
1171    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1172    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1173    /**
1174     * Broadcast Action: Sent after the screen turns on.
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_ON = "android.intent.action.SCREEN_ON";
1181
1182    /**
1183     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1184     * keyguard is gone).
1185     *
1186     * <p class="note">This is a protected intent that can only be sent
1187     * by the system.
1188     */
1189    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1190    public static final String ACTION_USER_PRESENT = "android.intent.action.USER_PRESENT";
1191
1192    /**
1193     * Broadcast Action: The current time has changed.  Sent every
1194     * minute.  You can <em>not</em> receive this through components declared
1195     * in manifests, only by exlicitly registering for it with
1196     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1197     * Context.registerReceiver()}.
1198     *
1199     * <p class="note">This is a protected intent that can only be sent
1200     * by the system.
1201     */
1202    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1203    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1204    /**
1205     * Broadcast Action: The time was set.
1206     */
1207    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1208    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1209    /**
1210     * Broadcast Action: The date has changed.
1211     */
1212    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1213    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1214    /**
1215     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1216     * <ul>
1217     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1218     * </ul>
1219     *
1220     * <p class="note">This is a protected intent that can only be sent
1221     * by the system.
1222     */
1223    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1224    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1225    /**
1226     * Clear DNS Cache Action: This is broadcast when networks have changed and old
1227     * DNS entries should be tossed.
1228     * @hide
1229     */
1230    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1231    public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
1232    /**
1233     * Alarm Changed Action: This is broadcast when the AlarmClock
1234     * application's alarm is set or unset.  It is used by the
1235     * AlarmClock application and the StatusBar service.
1236     * @hide
1237     */
1238    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1239    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1240    /**
1241     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1242     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1243     * @hide
1244     */
1245    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1246    public static final String ACTION_SYNC_STATE_CHANGED
1247            = "android.intent.action.SYNC_STATE_CHANGED";
1248    /**
1249     * Broadcast Action: This is broadcast once, after the system has finished
1250     * booting.  It can be used to perform application-specific initialization,
1251     * such as installing alarms.  You must hold the
1252     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1253     * in order to receive this broadcast.
1254     *
1255     * <p class="note">This is a protected intent that can only be sent
1256     * by the system.
1257     */
1258    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1259    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1260    /**
1261     * Broadcast Action: This is broadcast when a user action should request a
1262     * temporary system dialog to dismiss.  Some examples of temporary system
1263     * dialogs are the notification window-shade and the recent tasks dialog.
1264     */
1265    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1266    /**
1267     * Broadcast Action: Trigger the download and eventual installation
1268     * of a package.
1269     * <p>Input: {@link #getData} is the URI of the package file to download.
1270     *
1271     * <p class="note">This is a protected intent that can only be sent
1272     * by the system.
1273     */
1274    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1275    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1276    /**
1277     * Broadcast Action: A new application package has been installed on the
1278     * device. The data contains the name of the package.  Note that the
1279     * newly installed package does <em>not</em> receive this broadcast.
1280     * <p>My include the following extras:
1281     * <ul>
1282     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1283     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1284     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1285     * </ul>
1286     *
1287     * <p class="note">This is a protected intent that can only be sent
1288     * by the system.
1289     */
1290    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1291    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1292    /**
1293     * Broadcast Action: A new version of an application package has been
1294     * installed, replacing an existing version that was previously installed.
1295     * The data contains the name of the package.
1296     * <p>My include the following extras:
1297     * <ul>
1298     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1299     * </ul>
1300     *
1301     * <p class="note">This is a protected intent that can only be sent
1302     * by the system.
1303     */
1304    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1305    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1306    /**
1307     * Broadcast Action: An existing application package has been removed from
1308     * the device.  The data contains the name of the package.  The package
1309     * that is being installed does <em>not</em> receive this Intent.
1310     * <ul>
1311     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1312     * to the package.
1313     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1314     * application -- data and code -- is being removed.
1315     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1316     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1317     * </ul>
1318     *
1319     * <p class="note">This is a protected intent that can only be sent
1320     * by the system.
1321     */
1322    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1323    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1324    /**
1325     * Broadcast Action: An existing application package has been changed (e.g.
1326     * a component has been enabled or disabled).  The data contains the name of
1327     * the package.
1328     * <ul>
1329     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1330     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
1331     * of the changed components.
1332     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
1333     * default action of restarting the application.
1334     * </ul>
1335     *
1336     * <p class="note">This is a protected intent that can only be sent
1337     * by the system.
1338     */
1339    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1340    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1341    /**
1342     * @hide
1343     * Broadcast Action: Ask system services if there is any reason to
1344     * restart the given package.  The data contains the name of the
1345     * package.
1346     * <ul>
1347     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1348     * <li> {@link #EXTRA_PACKAGES} String array of all packages to check.
1349     * </ul>
1350     *
1351     * <p class="note">This is a protected intent that can only be sent
1352     * by the system.
1353     */
1354    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1355    public static final String ACTION_QUERY_PACKAGE_RESTART = "android.intent.action.QUERY_PACKAGE_RESTART";
1356    /**
1357     * Broadcast Action: The user has restarted a package, and all of its
1358     * processes have been killed.  All runtime state
1359     * associated with it (processes, alarms, notifications, etc) should
1360     * be removed.  Note that the restarted package does <em>not</em>
1361     * receive this broadcast.
1362     * The data contains the name of the package.
1363     * <ul>
1364     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1365     * </ul>
1366     *
1367     * <p class="note">This is a protected intent that can only be sent
1368     * by the system.
1369     */
1370    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1371    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1372    /**
1373     * Broadcast Action: The user has cleared the data of a package.  This should
1374     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1375     * its persistent data is erased and this broadcast sent.
1376     * Note that the cleared package does <em>not</em>
1377     * receive this broadcast. The data contains the name of the package.
1378     * <ul>
1379     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1380     * </ul>
1381     *
1382     * <p class="note">This is a protected intent that can only be sent
1383     * by the system.
1384     */
1385    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1386    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1387    /**
1388     * Broadcast Action: A user ID has been removed from the system.  The user
1389     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1390     *
1391     * <p class="note">This is a protected intent that can only be sent
1392     * by the system.
1393     */
1394    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1395    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1396
1397    /**
1398     * Broadcast Action: Resources for a set of packages (which were
1399     * previously unavailable) are currently
1400     * available since the media on which they exist is available.
1401     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1402     * list of packages whose availability changed.
1403     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1404     * list of uids of packages whose availability changed.
1405     * Note that the
1406     * packages in this list do <em>not</em> receive this broadcast.
1407     * The specified set of packages are now available on the system.
1408     * <p>Includes the following extras:
1409     * <ul>
1410     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1411     * whose resources(were previously unavailable) are currently available.
1412     * {@link #EXTRA_CHANGED_UID_LIST} is the set of uids of the
1413     * packages whose resources(were previously unavailable)
1414     * are  currently available.
1415     * </ul>
1416     *
1417     * <p class="note">This is a protected intent that can only be sent
1418     * by the system.
1419     */
1420    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1421    public static final String ACTION_EXTERNAL_APPLICATIONS_AVAILABLE =
1422        "android.intent.action.EXTERNAL_APPLICATIONS_AVAILABLE";
1423
1424    /**
1425     * Broadcast Action: Resources for a set of packages are currently
1426     * unavailable since the media on which they exist is unavailable.
1427     * The extra data {@link #EXTRA_CHANGED_PACKAGE_LIST} contains a
1428     * list of packages whose availability changed.
1429     * The extra data {@link #EXTRA_CHANGED_UID_LIST} contains a
1430     * list of uids of packages whose availability changed.
1431     * The specified set of packages can no longer be
1432     * launched and are practically unavailable on the system.
1433     * <p>Inclues the following extras:
1434     * <ul>
1435     * <li> {@link #EXTRA_CHANGED_PACKAGE_LIST} is the set of packages
1436     * whose resources are no longer available.
1437     * {@link #EXTRA_CHANGED_UID_LIST} is the set of packages
1438     * whose resources are no longer available.
1439     * </ul>
1440     *
1441     * <p class="note">This is a protected intent that can only be sent
1442     * by the system.
1443     */
1444    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1445    public static final String ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE =
1446        "android.intent.action.EXTERNAL_APPLICATIONS_UNAVAILABLE";
1447
1448    /**
1449     * Broadcast Action:  The current system wallpaper has changed.  See
1450     * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
1451     */
1452    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1453    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1454    /**
1455     * Broadcast Action: The current device {@link android.content.res.Configuration}
1456     * (orientation, locale, etc) has changed.  When such a change happens, the
1457     * UIs (view hierarchy) will need to be rebuilt based on this new
1458     * information; for the most part, applications don't need to worry about
1459     * this, because the system will take care of stopping and restarting the
1460     * application to make sure it sees the new changes.  Some system code that
1461     * can not be restarted will need to watch for this action and handle it
1462     * appropriately.
1463     *
1464     * <p class="note">
1465     * You can <em>not</em> receive this through components declared
1466     * in manifests, only by explicitly registering for it with
1467     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1468     * Context.registerReceiver()}.
1469     *
1470     * <p class="note">This is a protected intent that can only be sent
1471     * by the system.
1472     *
1473     * @see android.content.res.Configuration
1474     */
1475    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1476    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1477    /**
1478     * Broadcast Action: The current device's locale has changed.
1479     *
1480     * <p class="note">This is a protected intent that can only be sent
1481     * by the system.
1482     */
1483    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1484    public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
1485    /**
1486     * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
1487     * charging state, level, and other information about the battery.
1488     * See {@link android.os.BatteryManager} for documentation on the
1489     * contents of the Intent.
1490     *
1491     * <p class="note">
1492     * You can <em>not</em> receive this through components declared
1493     * in manifests, only by explicitly registering for it with
1494     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1495     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1496     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1497     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1498     * broadcasts that are sent and can be received through manifest
1499     * receivers.
1500     *
1501     * <p class="note">This is a protected intent that can only be sent
1502     * by the system.
1503     */
1504    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1505    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1506    /**
1507     * Broadcast Action:  Indicates low battery condition on the device.
1508     * This broadcast corresponds to the "Low battery warning" system dialog.
1509     *
1510     * <p class="note">This is a protected intent that can only be sent
1511     * by the system.
1512     */
1513    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1514    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1515    /**
1516     * Broadcast Action:  Indicates the battery is now okay after being low.
1517     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1518     * gone back up to an okay state.
1519     *
1520     * <p class="note">This is a protected intent that can only be sent
1521     * by the system.
1522     */
1523    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1524    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1525    /**
1526     * Broadcast Action:  External power has been connected to the device.
1527     * This is intended for applications that wish to register specifically to this notification.
1528     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1529     * stay active to receive this notification.  This action can be used to implement actions
1530     * that wait until power is available to trigger.
1531     *
1532     * <p class="note">This is a protected intent that can only be sent
1533     * by the system.
1534     */
1535    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1536    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1537    /**
1538     * Broadcast Action:  External power has been removed from the device.
1539     * This is intended for applications that wish to register specifically to this notification.
1540     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1541     * stay active to receive this notification.  This action can be used to implement actions
1542     * that wait until power is available to trigger.
1543     *
1544     * <p class="note">This is a protected intent that can only be sent
1545     * by the system.
1546     */
1547    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1548    public static final String ACTION_POWER_DISCONNECTED =
1549            "android.intent.action.ACTION_POWER_DISCONNECTED";
1550    /**
1551     * Broadcast Action:  Device is shutting down.
1552     * This is broadcast when the device is being shut down (completely turned
1553     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1554     * will proceed and all unsaved data lost.  Apps will not normally need
1555     * to handle this, since the foreground activity will be paused as well.
1556     *
1557     * <p class="note">This is a protected intent that can only be sent
1558     * by the system.
1559     */
1560    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1561    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1562    /**
1563     * Activity Action:  Start this activity to request system shutdown.
1564     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1565     * to request confirmation from the user before shutting down.
1566     *
1567     * <p class="note">This is a protected intent that can only be sent
1568     * by the system.
1569     *
1570     * {@hide}
1571     */
1572    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1573    /**
1574     * Broadcast Action:  A sticky broadcast that indicates low memory
1575     * condition on the device
1576     *
1577     * <p class="note">This is a protected intent that can only be sent
1578     * by the system.
1579     */
1580    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1581    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1582    /**
1583     * Broadcast Action:  Indicates low memory condition on the device no longer exists
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_OK = "android.intent.action.DEVICE_STORAGE_OK";
1590    /**
1591     * Broadcast Action:  A sticky broadcast that indicates a memory full
1592     * condition on the device. This is intended for activities that want
1593     * to be able to fill the data partition completely, leaving only
1594     * enough free space to prevent system-wide SQLite failures.
1595     *
1596     * <p class="note">This is a protected intent that can only be sent
1597     * by the system.
1598     *
1599     * {@hide}
1600     */
1601    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1602    public static final String ACTION_DEVICE_STORAGE_FULL = "android.intent.action.DEVICE_STORAGE_FULL";
1603    /**
1604     * Broadcast Action:  Indicates memory full condition on the device
1605     * no longer exists.
1606     *
1607     * <p class="note">This is a protected intent that can only be sent
1608     * by the system.
1609     *
1610     * {@hide}
1611     */
1612    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1613    public static final String ACTION_DEVICE_STORAGE_NOT_FULL = "android.intent.action.DEVICE_STORAGE_NOT_FULL";
1614    /**
1615     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1616     * and package management should be started.
1617     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1618     * notification.
1619     */
1620    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1621    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1622    /**
1623     * Broadcast Action:  The device has entered USB Mass Storage mode.
1624     * This is used mainly for the USB Settings panel.
1625     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1626     * when the SD card file system is mounted or unmounted
1627     */
1628    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1629    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1630
1631    /**
1632     * Broadcast Action:  The device has exited USB Mass Storage mode.
1633     * This is used mainly for the USB Settings panel.
1634     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1635     * when the SD card file system is mounted or unmounted
1636     */
1637    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1638    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1639
1640    /**
1641     * Broadcast Action:  External media has been removed.
1642     * The path to the mount point for the removed media is contained in the Intent.mData field.
1643     */
1644    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1645    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1646
1647    /**
1648     * Broadcast Action:  External media is present, but not mounted at its mount point.
1649     * The path to the mount point for the removed media is contained in the Intent.mData field.
1650     */
1651    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1652    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1653
1654    /**
1655     * Broadcast Action:  External media is present, and being disk-checked
1656     * The path to the mount point for the checking media is contained in the Intent.mData field.
1657     */
1658    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1659    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1660
1661    /**
1662     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1663     * The path to the mount point for the checking media is contained in the Intent.mData field.
1664     */
1665    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1666    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1667
1668    /**
1669     * Broadcast Action:  External media is present and mounted at its mount point.
1670     * The path to the mount point for the removed media is contained in the Intent.mData field.
1671     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1672     * media was mounted read only.
1673     */
1674    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1675    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1676
1677    /**
1678     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1679     * The path to the mount point for the shared media is contained in the Intent.mData field.
1680     */
1681    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1682    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1683
1684    /**
1685     * Broadcast Action:  External media is no longer being shared via USB mass storage.
1686     * The path to the mount point for the previously shared media is contained in the Intent.mData field.
1687     *
1688     * @hide
1689     */
1690    public static final String ACTION_MEDIA_UNSHARED = "android.intent.action.MEDIA_UNSHARED";
1691
1692    /**
1693     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1694     * The path to the mount point for the removed media is contained in the Intent.mData field.
1695     */
1696    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1697    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1698
1699    /**
1700     * Broadcast Action:  External media is present but cannot be mounted.
1701     * The path to the mount point for the removed media is contained in the Intent.mData field.
1702     */
1703    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1704    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1705
1706   /**
1707     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1708     * Applications should close all files they have open within the mount point when they receive this intent.
1709     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1710     */
1711    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1712    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1713
1714    /**
1715     * Broadcast Action:  The media scanner has started scanning a directory.
1716     * The path to the directory being scanned is contained in the Intent.mData field.
1717     */
1718    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1719    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1720
1721   /**
1722     * Broadcast Action:  The media scanner has finished scanning a directory.
1723     * The path to the scanned directory is contained in the Intent.mData field.
1724     */
1725    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1726    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1727
1728   /**
1729     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1730     * The path to the file is contained in the Intent.mData field.
1731     */
1732    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1733    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1734
1735   /**
1736     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1737     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1738     * caused the broadcast.
1739     */
1740    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1741    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1742
1743    /**
1744     * Broadcast Action:  The "Camera 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_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1750
1751    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1752    // location; they are not general-purpose actions.
1753
1754    /**
1755     * Broadcast Action: An GTalk connection has been established.
1756     */
1757    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1758    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1759            "android.intent.action.GTALK_CONNECTED";
1760
1761    /**
1762     * Broadcast Action: An GTalk connection has been disconnected.
1763     */
1764    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1765    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1766            "android.intent.action.GTALK_DISCONNECTED";
1767
1768    /**
1769     * Broadcast Action: An input method has been changed.
1770     */
1771    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1772    public static final String ACTION_INPUT_METHOD_CHANGED =
1773            "android.intent.action.INPUT_METHOD_CHANGED";
1774
1775    /**
1776     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1777     * more radios have been turned off or on. The intent will have the following extra value:</p>
1778     * <ul>
1779     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1780     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1781     *   turned off</li>
1782     * </ul>
1783     *
1784     * <p class="note">This is a protected intent that can only be sent
1785     * by the system.
1786     */
1787    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1788    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1789
1790    /**
1791     * Broadcast Action: Some content providers have parts of their namespace
1792     * where they publish new events or items that the user may be especially
1793     * interested in. For these things, they may broadcast this action when the
1794     * set of interesting items change.
1795     *
1796     * For example, GmailProvider sends this notification when the set of unread
1797     * mail in the inbox changes.
1798     *
1799     * <p>The data of the intent identifies which part of which provider
1800     * changed. When queried through the content resolver, the data URI will
1801     * return the data set in question.
1802     *
1803     * <p>The intent will have the following extra values:
1804     * <ul>
1805     *   <li><em>count</em> - The number of items in the data set. This is the
1806     *       same as the number of items in the cursor returned by querying the
1807     *       data URI. </li>
1808     * </ul>
1809     *
1810     * This intent will be sent at boot (if the count is non-zero) and when the
1811     * data set changes. It is possible for the data set to change without the
1812     * count changing (for example, if a new unread message arrives in the same
1813     * sync operation in which a message is archived). The phone should still
1814     * ring/vibrate/etc as normal in this case.
1815     */
1816    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1817    public static final String ACTION_PROVIDER_CHANGED =
1818            "android.intent.action.PROVIDER_CHANGED";
1819
1820    /**
1821     * Broadcast Action: Wired Headset plugged in or unplugged.
1822     *
1823     * <p>The intent will have the following extra values:
1824     * <ul>
1825     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1826     *   <li><em>name</em> - Headset type, human readable string </li>
1827     *   <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
1828     * </ul>
1829     * </ul>
1830     */
1831    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1832    public static final String ACTION_HEADSET_PLUG =
1833            "android.intent.action.HEADSET_PLUG";
1834
1835    /**
1836     * Broadcast Action: An analog audio speaker/headset plugged in or unplugged.
1837     *
1838     * <p>The intent will have the following extra values:
1839     * <ul>
1840     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1841     *   <li><em>name</em> - Headset type, human readable string </li>
1842     * </ul>
1843     * </ul>
1844     * @hide
1845     */
1846    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1847    public static final String ACTION_USB_ANLG_HEADSET_PLUG =
1848            "android.intent.action.DOCK_HEADSET_PLUG";
1849
1850    /**
1851     * Broadcast Action: An analog audio speaker/headset plugged in or unplugged.
1852     *
1853     * <p>The intent will have the following extra values:
1854     * <ul>
1855     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1856     *   <li><em>name</em> - Headset type, human readable string </li>
1857     * </ul>
1858     * </ul>
1859     * @hide
1860     */
1861    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1862    public static final String ACTION_USB_DGTL_HEADSET_PLUG =
1863            "android.intent.action.HDMI_AUDIO_PLUG";
1864
1865    /**
1866     * Broadcast Action: A HMDI cable was plugged or unplugged
1867     *
1868     * <p>The intent will have the following extra values:
1869     * <ul>
1870     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1871     *   <li><em>name</em> - HDMI cable, human readable string </li>
1872     * </ul>
1873     * </ul>
1874     * @hide
1875     */
1876    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1877    public static final String ACTION_HDMI_AUDIO_PLUG =
1878            "android.intent.action.HDMI_AUDIO_PLUG";
1879
1880    /**
1881     * Broadcast Action: An outgoing call is about to be placed.
1882     *
1883     * <p>The Intent will have the following extra value:
1884     * <ul>
1885     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1886     *       the phone number originally intended to be dialed.</li>
1887     * </ul>
1888     * <p>Once the broadcast is finished, the resultData is used as the actual
1889     * number to call.  If  <code>null</code>, no call will be placed.</p>
1890     * <p>It is perfectly acceptable for multiple receivers to process the
1891     * outgoing call in turn: for example, a parental control application
1892     * might verify that the user is authorized to place the call at that
1893     * time, then a number-rewriting application might add an area code if
1894     * one was not specified.</p>
1895     * <p>For consistency, any receiver whose purpose is to prohibit phone
1896     * calls should have a priority of 0, to ensure it will see the final
1897     * phone number to be dialed.
1898     * Any receiver whose purpose is to rewrite phone numbers to be called
1899     * should have a positive priority.
1900     * Negative priorities are reserved for the system for this broadcast;
1901     * using them may cause problems.</p>
1902     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1903     * abort the broadcast.</p>
1904     * <p>Emergency calls cannot be intercepted using this mechanism, and
1905     * other calls cannot be modified to call emergency numbers using this
1906     * mechanism.
1907     * <p>You must hold the
1908     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1909     * permission to receive this Intent.</p>
1910     *
1911     * <p class="note">This is a protected intent that can only be sent
1912     * by the system.
1913     */
1914    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1915    public static final String ACTION_NEW_OUTGOING_CALL =
1916            "android.intent.action.NEW_OUTGOING_CALL";
1917
1918    /**
1919     * Broadcast Action: Have the device reboot.  This is only for use by
1920     * system code.
1921     *
1922     * <p class="note">This is a protected intent that can only be sent
1923     * by the system.
1924     */
1925    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1926    public static final String ACTION_REBOOT =
1927            "android.intent.action.REBOOT";
1928
1929    /**
1930     * Broadcast Action:  A sticky broadcast for changes in the physical
1931     * docking state of the device.
1932     *
1933     * <p>The intent will have the following extra values:
1934     * <ul>
1935     *   <li><em>{@link #EXTRA_DOCK_STATE}</em> - the current dock
1936     *       state, indicating which dock the device is physically in.</li>
1937     * </ul>
1938     * <p>This is intended for monitoring the current physical dock state.
1939     * See {@link android.app.UiModeManager} for the normal API dealing with
1940     * dock mode changes.
1941     */
1942    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1943    public static final String ACTION_DOCK_EVENT =
1944            "android.intent.action.DOCK_EVENT";
1945
1946    /**
1947     * Broadcast Action: a remote intent is to be broadcasted.
1948     *
1949     * A remote intent is used for remote RPC between devices. The remote intent
1950     * is serialized and sent from one device to another device. The receiving
1951     * device parses the remote intent and broadcasts it. Note that anyone can
1952     * broadcast a remote intent. However, if the intent receiver of the remote intent
1953     * does not trust intent broadcasts from arbitrary intent senders, it should require
1954     * the sender to hold certain permissions so only trusted sender's broadcast will be
1955     * let through.
1956     * @hide
1957     */
1958    public static final String ACTION_REMOTE_INTENT =
1959            "com.google.android.c2dm.intent.RECEIVE";
1960
1961    /**
1962     * Broadcast Action: hook for permforming cleanup after a system update.
1963     *
1964     * The broadcast is sent when the system is booting, before the
1965     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1966     * image.  A receiver for this should do its work and then disable itself
1967     * so that it does not get run again at the next boot.
1968     * @hide
1969     */
1970    public static final String ACTION_PRE_BOOT_COMPLETED =
1971            "android.intent.action.PRE_BOOT_COMPLETED";
1972
1973    // ---------------------------------------------------------------------
1974    // ---------------------------------------------------------------------
1975    // Standard intent categories (see addCategory()).
1976
1977    /**
1978     * Set if the activity should be an option for the default action
1979     * (center press) to perform on a piece of data.  Setting this will
1980     * hide from the user any activities without it set when performing an
1981     * action on some data.  Note that this is normal -not- set in the
1982     * Intent when initiating an action -- it is for use in intent filters
1983     * specified in packages.
1984     */
1985    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1986    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1987    /**
1988     * Activities that can be safely invoked from a browser must support this
1989     * category.  For example, if the user is viewing a web page or an e-mail
1990     * and clicks on a link in the text, the Intent generated execute that
1991     * link will require the BROWSABLE category, so that only activities
1992     * supporting this category will be considered as possible actions.  By
1993     * supporting this category, you are promising that there is nothing
1994     * damaging (without user intervention) that can happen by invoking any
1995     * matching Intent.
1996     */
1997    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1998    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1999    /**
2000     * Set if the activity should be considered as an alternative action to
2001     * the data the user is currently viewing.  See also
2002     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
2003     * applies to the selection in a list of items.
2004     *
2005     * <p>Supporting this category means that you would like your activity to be
2006     * displayed in the set of alternative things the user can do, usually as
2007     * part of the current activity's options menu.  You will usually want to
2008     * include a specific label in the &lt;intent-filter&gt; of this action
2009     * describing to the user what it does.
2010     *
2011     * <p>The action of IntentFilter with this category is important in that it
2012     * describes the specific action the target will perform.  This generally
2013     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
2014     * a specific name such as "com.android.camera.action.CROP.  Only one
2015     * alternative of any particular action will be shown to the user, so using
2016     * a specific action like this makes sure that your alternative will be
2017     * displayed while also allowing other applications to provide their own
2018     * overrides of that particular action.
2019     */
2020    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2021    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
2022    /**
2023     * Set if the activity should be considered as an alternative selection
2024     * action to the data the user has currently selected.  This is like
2025     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
2026     * of items from which the user can select, giving them alternatives to the
2027     * default action that will be performed on it.
2028     */
2029    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2030    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
2031    /**
2032     * Intended to be used as a tab inside of an containing TabActivity.
2033     */
2034    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2035    public static final String CATEGORY_TAB = "android.intent.category.TAB";
2036    /**
2037     * Should be displayed in the top-level launcher.
2038     */
2039    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2040    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
2041    /**
2042     * Provides information about the package it is in; typically used if
2043     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
2044     * a front-door to the user without having to be shown in the all apps list.
2045     */
2046    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2047    public static final String CATEGORY_INFO = "android.intent.category.INFO";
2048    /**
2049     * This is the home activity, that is the first activity that is displayed
2050     * when the device boots.
2051     */
2052    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2053    public static final String CATEGORY_HOME = "android.intent.category.HOME";
2054    /**
2055     * This activity is a preference panel.
2056     */
2057    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2058    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
2059    /**
2060     * This activity is a development preference panel.
2061     */
2062    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2063    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
2064    /**
2065     * Capable of running inside a parent activity container.
2066     */
2067    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2068    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
2069    /**
2070     * This activity allows the user to browse and download new applications.
2071     */
2072    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2073    public static final String CATEGORY_APP_MARKET = "android.intent.category.APP_MARKET";
2074    /**
2075     * This activity may be exercised by the monkey or other automated test tools.
2076     */
2077    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2078    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
2079    /**
2080     * To be used as a test (not part of the normal user experience).
2081     */
2082    public static final String CATEGORY_TEST = "android.intent.category.TEST";
2083    /**
2084     * To be used as a unit test (run through the Test Harness).
2085     */
2086    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
2087    /**
2088     * To be used as an sample code example (not part of the normal user
2089     * experience).
2090     */
2091    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
2092    /**
2093     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
2094     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
2095     * when queried, though it is allowable for those columns to be blank.
2096     */
2097    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2098    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
2099
2100    /**
2101     * To be used as code under test for framework instrumentation tests.
2102     */
2103    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
2104            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
2105    /**
2106     * An activity to run when device is inserted into a car dock.
2107     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2108     * information, see {@link android.app.UiModeManager}.
2109     */
2110    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2111    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
2112    /**
2113     * An activity to run when device is inserted into a car dock.
2114     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2115     * information, see {@link android.app.UiModeManager}.
2116     */
2117    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2118    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
2119    /**
2120     * An activity to run when device is inserted into a analog (low end) dock.
2121     * Used with {@link #ACTION_MAIN} to launch an activity.  For more
2122     * information, see {@link android.app.UiModeManager}.
2123     */
2124    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2125    public static final String CATEGORY_LE_DESK_DOCK = "android.intent.category.LE_DESK_DOCK";
2126
2127    /**
2128     * An activity to run when device is inserted into a digital (high 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_HE_DESK_DOCK = "android.intent.category.HE_DESK_DOCK";
2134
2135    /**
2136     * Used to indicate that the activity can be used in a car environment.
2137     */
2138    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
2139    public static final String CATEGORY_CAR_MODE = "android.intent.category.CAR_MODE";
2140
2141    // ---------------------------------------------------------------------
2142    // ---------------------------------------------------------------------
2143    // Standard extra data keys.
2144
2145    /**
2146     * The initial data to place in a newly created record.  Use with
2147     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
2148     * fields as would be given to the underlying ContentProvider.insert()
2149     * call.
2150     */
2151    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
2152
2153    /**
2154     * A constant CharSequence that is associated with the Intent, used with
2155     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
2156     * this may be a styled CharSequence, so you must use
2157     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
2158     * retrieve it.
2159     */
2160    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
2161
2162    /**
2163     * A content: URI holding a stream of data associated with the Intent,
2164     * used with {@link #ACTION_SEND} to supply the data being sent.
2165     */
2166    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
2167
2168    /**
2169     * A String[] holding e-mail addresses that should be delivered to.
2170     */
2171    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
2172
2173    /**
2174     * A String[] holding e-mail addresses that should be carbon copied.
2175     */
2176    public static final String EXTRA_CC       = "android.intent.extra.CC";
2177
2178    /**
2179     * A String[] holding e-mail addresses that should be blind carbon copied.
2180     */
2181    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
2182
2183    /**
2184     * A constant string holding the desired subject line of a message.
2185     */
2186    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
2187
2188    /**
2189     * An Intent describing the choices you would like shown with
2190     * {@link #ACTION_PICK_ACTIVITY}.
2191     */
2192    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
2193
2194    /**
2195     * A CharSequence dialog title to provide to the user when used with a
2196     * {@link #ACTION_CHOOSER}.
2197     */
2198    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
2199
2200    /**
2201     * A Parcelable[] of {@link Intent} or
2202     * {@link android.content.pm.LabeledIntent} objects as set with
2203     * {@link #putExtra(String, Parcelable[])} of additional activities to place
2204     * a the front of the list of choices, when shown to the user with a
2205     * {@link #ACTION_CHOOSER}.
2206     */
2207    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
2208
2209    /**
2210     * A {@link android.view.KeyEvent} object containing the event that
2211     * triggered the creation of the Intent it is in.
2212     */
2213    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
2214
2215    /**
2216     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
2217     * before shutting down.
2218     *
2219     * {@hide}
2220     */
2221    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
2222
2223    /**
2224     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2225     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
2226     * of restarting the application.
2227     */
2228    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
2229
2230    /**
2231     * A String holding the phone number originally entered in
2232     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
2233     * number to call in a {@link android.content.Intent#ACTION_CALL}.
2234     */
2235    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
2236
2237    /**
2238     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
2239     * intents to supply the uid the package had been assigned.  Also an optional
2240     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2241     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2242     * purpose.
2243     */
2244    public static final String EXTRA_UID = "android.intent.extra.UID";
2245
2246    /**
2247     * @hide String array of package names.
2248     */
2249    public static final String EXTRA_PACKAGES = "android.intent.extra.PACKAGES";
2250
2251    /**
2252     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2253     * intents to indicate whether this represents a full uninstall (removing
2254     * both the code and its data) or a partial uninstall (leaving its data,
2255     * implying that this is an update).
2256     */
2257    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2258
2259    /**
2260     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2261     * intents to indicate that this is a replacement of the package, so this
2262     * broadcast will immediately be followed by an add broadcast for a
2263     * different version of the same package.
2264     */
2265    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2266
2267    /**
2268     * Used as an int extra field in {@link android.app.AlarmManager} intents
2269     * to tell the application being invoked how many pending alarms are being
2270     * delievered with the intent.  For one-shot alarms this will always be 1.
2271     * For recurring alarms, this might be greater than 1 if the device was
2272     * asleep or powered off at the time an earlier alarm would have been
2273     * delivered.
2274     */
2275    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2276
2277    /**
2278     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2279     * intents to request the dock state.  Possible values are
2280     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2281     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2282     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}, or
2283     * {@link android.content.Intent#EXTRA_DOCK_STATE_LE_DESK}, or
2284     * {@link android.content.Intent#EXTRA_DOCK_STATE_HE_DESK}.
2285     */
2286    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2287
2288    /**
2289     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2290     * to represent that the phone is not in any dock.
2291     */
2292    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2293
2294    /**
2295     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2296     * to represent that the phone is in a desk dock.
2297     */
2298    public static final int EXTRA_DOCK_STATE_DESK = 1;
2299
2300    /**
2301     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2302     * to represent that the phone is in a car dock.
2303     */
2304    public static final int EXTRA_DOCK_STATE_CAR = 2;
2305
2306    /**
2307     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2308     * to represent that the phone is in a analog (low end) dock.
2309     */
2310    public static final int EXTRA_DOCK_STATE_LE_DESK = 3;
2311
2312    /**
2313     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2314     * to represent that the phone is in a digital (high end) dock.
2315     */
2316    public static final int EXTRA_DOCK_STATE_HE_DESK = 4;
2317
2318    /**
2319     * Boolean that can be supplied as meta-data with a dock activity, to
2320     * indicate that the dock should take over the home key when it is active.
2321     */
2322    public static final String METADATA_DOCK_HOME = "android.dock_home";
2323
2324    /**
2325     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2326     * the bug report.
2327     *
2328     * @hide
2329     */
2330    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2331
2332    /**
2333     * Used as a string extra field when sending an intent to PackageInstaller to install a
2334     * package. Specifies the installer package name; this package will receive the
2335     * {@link #ACTION_APP_ERROR} intent.
2336     *
2337     * @hide
2338     */
2339    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2340            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2341
2342    /**
2343     * Used in the extra field in the remote intent. It's astring token passed with the
2344     * remote intent.
2345     */
2346    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2347            "android.intent.extra.remote_intent_token";
2348
2349    /**
2350     * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
2351     * will contain only the first name in the list.
2352     */
2353    @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
2354            "android.intent.extra.changed_component_name";
2355
2356    /**
2357     * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED},
2358     * and contains a string array of all of the components that have changed.
2359     */
2360    public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
2361            "android.intent.extra.changed_component_name_list";
2362
2363    /**
2364     * This field is part of
2365     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
2366     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
2367     * and contains a string array of all of the components that have changed.
2368     */
2369    public static final String EXTRA_CHANGED_PACKAGE_LIST =
2370            "android.intent.extra.changed_package_list";
2371
2372    /**
2373     * This field is part of
2374     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_AVAILABLE},
2375     * {@link android.content.Intent#ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE}
2376     * and contains an integer array of uids of all of the components
2377     * that have changed.
2378     */
2379    public static final String EXTRA_CHANGED_UID_LIST =
2380            "android.intent.extra.changed_uid_list";
2381
2382    /**
2383     * @hide
2384     * Magic extra system code can use when binding, to give a label for
2385     * who it is that has bound to a service.  This is an integer giving
2386     * a framework string resource that can be displayed to the user.
2387     */
2388    public static final String EXTRA_CLIENT_LABEL =
2389            "android.intent.extra.client_label";
2390
2391    /**
2392     * @hide
2393     * Magic extra system code can use when binding, to give a PendingIntent object
2394     * that can be launched for the user to disable the system's use of this
2395     * service.
2396     */
2397    public static final String EXTRA_CLIENT_INTENT =
2398            "android.intent.extra.client_intent";
2399
2400    // ---------------------------------------------------------------------
2401    // ---------------------------------------------------------------------
2402    // Intent flags (see mFlags variable).
2403
2404    /**
2405     * If set, the recipient of this Intent will be granted permission to
2406     * perform read operations on the Uri in the Intent's data.
2407     */
2408    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2409    /**
2410     * If set, the recipient of this Intent will be granted permission to
2411     * perform write operations on the Uri in the Intent's data.
2412     */
2413    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2414    /**
2415     * Can be set by the caller to indicate that this Intent is coming from
2416     * a background operation, not from direct user interaction.
2417     */
2418    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2419    /**
2420     * A flag you can enable for debugging: when set, log messages will be
2421     * printed during the resolution of this intent to show you what has
2422     * been found to create the final resolved list.
2423     */
2424    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2425
2426    /**
2427     * If set, the new activity is not kept in the history stack.  As soon as
2428     * the user navigates away from it, the activity is finished.  This may also
2429     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2430     * noHistory} attribute.
2431     */
2432    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2433    /**
2434     * If set, the activity will not be launched if it is already running
2435     * at the top of the history stack.
2436     */
2437    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2438    /**
2439     * If set, this activity will become the start of a new task on this
2440     * history stack.  A task (from the activity that started it to the
2441     * next task activity) defines an atomic group of activities that the
2442     * user can move to.  Tasks can be moved to the foreground and background;
2443     * all of the activities inside of a particular task always remain in
2444     * the same order.  See
2445     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2446     * Activities and Tasks</a> for more details on tasks.
2447     *
2448     * <p>This flag is generally used by activities that want
2449     * to present a "launcher" style behavior: they give the user a list of
2450     * separate things that can be done, which otherwise run completely
2451     * independently of the activity launching them.
2452     *
2453     * <p>When using this flag, if a task is already running for the activity
2454     * you are now starting, then a new activity will not be started; instead,
2455     * the current task will simply be brought to the front of the screen with
2456     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2457     * to disable this behavior.
2458     *
2459     * <p>This flag can not be used when the caller is requesting a result from
2460     * the activity being launched.
2461     */
2462    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2463    /**
2464     * <strong>Do not use this flag unless you are implementing your own
2465     * top-level application launcher.</strong>  Used in conjunction with
2466     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2467     * behavior of bringing an existing task to the foreground.  When set,
2468     * a new task is <em>always</em> started to host the Activity for the
2469     * Intent, regardless of whether there is already an existing task running
2470     * the same thing.
2471     *
2472     * <p><strong>Because the default system does not include graphical task management,
2473     * you should not use this flag unless you provide some way for a user to
2474     * return back to the tasks you have launched.</strong>
2475     *
2476     * <p>This flag is ignored if
2477     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2478     *
2479     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2480     * Activities and Tasks</a> for more details on tasks.
2481     */
2482    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2483    /**
2484     * If set, and the activity being launched is already running in the
2485     * current task, then instead of launching a new instance of that activity,
2486     * all of the other activities on top of it will be closed and this Intent
2487     * will be delivered to the (now on top) old activity as a new Intent.
2488     *
2489     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2490     * If D calls startActivity() with an Intent that resolves to the component
2491     * of activity B, then C and D will be finished and B receive the given
2492     * Intent, resulting in the stack now being: A, B.
2493     *
2494     * <p>The currently running instance of activity B in the above example will
2495     * either receive the new intent you are starting here in its
2496     * onNewIntent() method, or be itself finished and restarted with the
2497     * new intent.  If it has declared its launch mode to be "multiple" (the
2498     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2499     * the same intent, then it will be finished and re-created; for all other
2500     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2501     * Intent will be delivered to the current instance's onNewIntent().
2502     *
2503     * <p>This launch mode can also be used to good effect in conjunction with
2504     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2505     * of a task, it will bring any currently running instance of that task
2506     * to the foreground, and then clear it to its root state.  This is
2507     * especially useful, for example, when launching an activity from the
2508     * notification manager.
2509     *
2510     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2511     * Activities and Tasks</a> for more details on tasks.
2512     */
2513    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2514    /**
2515     * If set and this intent is being used to launch a new activity from an
2516     * existing one, then the reply target of the existing activity will be
2517     * transfered to the new activity.  This way the new activity can call
2518     * {@link android.app.Activity#setResult} and have that result sent back to
2519     * the reply target of the original activity.
2520     */
2521    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2522    /**
2523     * If set and this intent is being used to launch a new activity from an
2524     * existing one, the current activity will not be counted as the top
2525     * activity for deciding whether the new intent should be delivered to
2526     * the top instead of starting a new one.  The previous activity will
2527     * be used as the top, with the assumption being that the current activity
2528     * will finish itself immediately.
2529     */
2530    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2531    /**
2532     * If set, the new activity is not kept in the list of recently launched
2533     * activities.
2534     */
2535    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2536    /**
2537     * This flag is not normally set by application code, but set for you by
2538     * the system as described in the
2539     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2540     * launchMode} documentation for the singleTask mode.
2541     */
2542    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2543    /**
2544     * If set, and this activity is either being started in a new task or
2545     * bringing to the top an existing task, then it will be launched as
2546     * the front door of the task.  This will result in the application of
2547     * any affinities needed to have that task in the proper state (either
2548     * moving activities to or from it), or simply resetting that task to
2549     * its initial state if needed.
2550     */
2551    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2552    /**
2553     * This flag is not normally set by application code, but set for you by
2554     * the system if this activity is being launched from history
2555     * (longpress home key).
2556     */
2557    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2558    /**
2559     * If set, this marks a point in the task's activity stack that should
2560     * be cleared when the task is reset.  That is, the next time the task
2561     * is brought to the foreground with
2562     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2563     * the user re-launching it from home), this activity and all on top of
2564     * it will be finished so that the user does not return to them, but
2565     * instead returns to whatever activity preceeded it.
2566     *
2567     * <p>This is useful for cases where you have a logical break in your
2568     * application.  For example, an e-mail application may have a command
2569     * to view an attachment, which launches an image view activity to
2570     * display it.  This activity should be part of the e-mail application's
2571     * task, since it is a part of the task the user is involved in.  However,
2572     * if the user leaves that task, and later selects the e-mail app from
2573     * home, we may like them to return to the conversation they were
2574     * viewing, not the picture attachment, since that is confusing.  By
2575     * setting this flag when launching the image viewer, that viewer and
2576     * any activities it starts will be removed the next time the user returns
2577     * to mail.
2578     */
2579    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2580    /**
2581     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2582     * callback from occurring on the current frontmost activity before it is
2583     * paused as the newly-started activity is brought to the front.
2584     *
2585     * <p>Typically, an activity can rely on that callback to indicate that an
2586     * explicit user action has caused their activity to be moved out of the
2587     * foreground. The callback marks an appropriate point in the activity's
2588     * lifecycle for it to dismiss any notifications that it intends to display
2589     * "until the user has seen them," such as a blinking LED.
2590     *
2591     * <p>If an activity is ever started via any non-user-driven events such as
2592     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2593     * Context#startActivity Context.startActivity}, ensuring that the pausing
2594     * activity does not think the user has acknowledged its notification.
2595     */
2596    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2597    /**
2598     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2599     * this flag will cause the launched activity to be brought to the front of its
2600     * task's history stack if it is already running.
2601     *
2602     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2603     * If D calls startActivity() with an Intent that resolves to the component
2604     * of activity B, then B will be brought to the front of the history stack,
2605     * with this resulting order:  A, C, D, B.
2606     *
2607     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2608     * specified.
2609     */
2610    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2611    /**
2612     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2613     * this flag will prevent the system from applying an activity transition
2614     * animation to go to the next activity state.  This doesn't mean an
2615     * animation will never run -- if another activity change happens that doesn't
2616     * specify this flag before the activity started here is displayed, then
2617     * that transition will be used.  This flag can be put to good use
2618     * when you are going to do a series of activity operations but the
2619     * animation seen by the user shouldn't be driven by the first activity
2620     * change but rather a later one.
2621     */
2622    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
2623    /**
2624     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2625     * this flag will cause any existing task that would be associated with the
2626     * activity to be cleared before the activity is started.  That is, the activity
2627     * becomes the new root of an otherwise empty task, and any old activities
2628     * are finished.  This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
2629     */
2630    public static final int FLAG_ACTIVITY_CLEAR_TASK = 0X00008000;
2631    /**
2632     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2633     * this flag will cause a newly launching task to be placed on top of the current
2634     * home activity task (if there is one).  That is, pressing back from the task
2635     * will always return the user to home even if that was not the last activity they
2636     * saw.   This can only be used in conjunction with {@link #FLAG_ACTIVITY_NEW_TASK}.
2637     */
2638    public static final int FLAG_ACTIVITY_TASK_ON_HOME = 0X00004000;
2639    /**
2640     * If set, when sending a broadcast only registered receivers will be
2641     * called -- no BroadcastReceiver components will be launched.
2642     */
2643    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2644    /**
2645     * If set, when sending a broadcast the new broadcast will replace
2646     * any existing pending broadcast that matches it.  Matching is defined
2647     * by {@link Intent#filterEquals(Intent) Intent.filterEquals} returning
2648     * true for the intents of the two broadcasts.  When a match is found,
2649     * the new broadcast (and receivers associated with it) will replace the
2650     * existing one in the pending broadcast list, remaining at the same
2651     * position in the list.
2652     *
2653     * <p>This flag is most typically used with sticky broadcasts, which
2654     * only care about delivering the most recent values of the broadcast
2655     * to their receivers.
2656     */
2657    public static final int FLAG_RECEIVER_REPLACE_PENDING = 0x20000000;
2658    /**
2659     * If set, when sending a broadcast <i>before boot has completed</i> only
2660     * registered receivers will be called -- no BroadcastReceiver components
2661     * will be launched.  Sticky intent state will be recorded properly even
2662     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2663     * is specified in the broadcast intent, this flag is unnecessary.
2664     *
2665     * <p>This flag is only for use by system sevices as a convenience to
2666     * avoid having to implement a more complex mechanism around detection
2667     * of boot completion.
2668     *
2669     * @hide
2670     */
2671    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x10000000;
2672    /**
2673     * Set when this broadcast is for a boot upgrade, a special mode that
2674     * allows the broadcast to be sent before the system is ready and launches
2675     * the app process with no providers running in it.
2676     * @hide
2677     */
2678    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x08000000;
2679
2680    /**
2681     * @hide Flags that can't be changed with PendingIntent.
2682     */
2683    public static final int IMMUTABLE_FLAGS =
2684            FLAG_GRANT_READ_URI_PERMISSION
2685            | FLAG_GRANT_WRITE_URI_PERMISSION;
2686
2687    // ---------------------------------------------------------------------
2688    // ---------------------------------------------------------------------
2689    // toUri() and parseUri() options.
2690
2691    /**
2692     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2693     * always has the "intent:" scheme.  This syntax can be used when you want
2694     * to later disambiguate between URIs that are intended to describe an
2695     * Intent vs. all others that should be treated as raw URIs.  When used
2696     * with {@link #parseUri}, any other scheme will result in a generic
2697     * VIEW action for that raw URI.
2698     */
2699    public static final int URI_INTENT_SCHEME = 1<<0;
2700
2701    // ---------------------------------------------------------------------
2702
2703    private String mAction;
2704    private Uri mData;
2705    private String mType;
2706    private String mPackage;
2707    private ComponentName mComponent;
2708    private int mFlags;
2709    private HashSet<String> mCategories;
2710    private Bundle mExtras;
2711    private Rect mSourceBounds;
2712
2713    // ---------------------------------------------------------------------
2714
2715    /**
2716     * Create an empty intent.
2717     */
2718    public Intent() {
2719    }
2720
2721    /**
2722     * Copy constructor.
2723     */
2724    public Intent(Intent o) {
2725        this.mAction = o.mAction;
2726        this.mData = o.mData;
2727        this.mType = o.mType;
2728        this.mPackage = o.mPackage;
2729        this.mComponent = o.mComponent;
2730        this.mFlags = o.mFlags;
2731        if (o.mCategories != null) {
2732            this.mCategories = new HashSet<String>(o.mCategories);
2733        }
2734        if (o.mExtras != null) {
2735            this.mExtras = new Bundle(o.mExtras);
2736        }
2737        if (o.mSourceBounds != null) {
2738            this.mSourceBounds = new Rect(o.mSourceBounds);
2739        }
2740    }
2741
2742    @Override
2743    public Object clone() {
2744        return new Intent(this);
2745    }
2746
2747    private Intent(Intent o, boolean all) {
2748        this.mAction = o.mAction;
2749        this.mData = o.mData;
2750        this.mType = o.mType;
2751        this.mPackage = o.mPackage;
2752        this.mComponent = o.mComponent;
2753        if (o.mCategories != null) {
2754            this.mCategories = new HashSet<String>(o.mCategories);
2755        }
2756    }
2757
2758    /**
2759     * Make a clone of only the parts of the Intent that are relevant for
2760     * filter matching: the action, data, type, component, and categories.
2761     */
2762    public Intent cloneFilter() {
2763        return new Intent(this, false);
2764    }
2765
2766    /**
2767     * Create an intent with a given action.  All other fields (data, type,
2768     * class) are null.  Note that the action <em>must</em> be in a
2769     * namespace because Intents are used globally in the system -- for
2770     * example the system VIEW action is android.intent.action.VIEW; an
2771     * application's custom action would be something like
2772     * com.google.app.myapp.CUSTOM_ACTION.
2773     *
2774     * @param action The Intent action, such as ACTION_VIEW.
2775     */
2776    public Intent(String action) {
2777        mAction = action;
2778    }
2779
2780    /**
2781     * Create an intent with a given action and for a given data url.  Note
2782     * that the action <em>must</em> be in a namespace because Intents are
2783     * used globally in the system -- for example the system VIEW action is
2784     * android.intent.action.VIEW; an application's custom action would be
2785     * something like com.google.app.myapp.CUSTOM_ACTION.
2786     *
2787     * <p><em>Note: scheme and host name matching in the Android framework is
2788     * case-sensitive, unlike the formal RFC.  As a result,
2789     * you should always ensure that you write your Uri with these elements
2790     * using lower case letters, and normalize any Uris you receive from
2791     * outside of Android to ensure the scheme and host is lower case.</em></p>
2792     *
2793     * @param action The Intent action, such as ACTION_VIEW.
2794     * @param uri The Intent data URI.
2795     */
2796    public Intent(String action, Uri uri) {
2797        mAction = action;
2798        mData = uri;
2799    }
2800
2801    /**
2802     * Create an intent for a specific component.  All other fields (action, data,
2803     * type, class) are null, though they can be modified later with explicit
2804     * calls.  This provides a convenient way to create an intent that is
2805     * intended to execute a hard-coded class name, rather than relying on the
2806     * system to find an appropriate class for you; see {@link #setComponent}
2807     * for more information on the repercussions of this.
2808     *
2809     * @param packageContext A Context of the application package implementing
2810     * this class.
2811     * @param cls The component class that is to be used for the intent.
2812     *
2813     * @see #setClass
2814     * @see #setComponent
2815     * @see #Intent(String, android.net.Uri , Context, Class)
2816     */
2817    public Intent(Context packageContext, Class<?> cls) {
2818        mComponent = new ComponentName(packageContext, cls);
2819    }
2820
2821    /**
2822     * Create an intent for a specific component with a specified action and data.
2823     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2824     * construct the Intent and then calling {@link #setClass} to set its
2825     * class.
2826     *
2827     * <p><em>Note: scheme and host name matching in the Android framework is
2828     * case-sensitive, unlike the formal RFC.  As a result,
2829     * you should always ensure that you write your Uri with these elements
2830     * using lower case letters, and normalize any Uris you receive from
2831     * outside of Android to ensure the scheme and host is lower case.</em></p>
2832     *
2833     * @param action The Intent action, such as ACTION_VIEW.
2834     * @param uri The Intent data URI.
2835     * @param packageContext A Context of the application package implementing
2836     * this class.
2837     * @param cls The component class that is to be used for the intent.
2838     *
2839     * @see #Intent(String, android.net.Uri)
2840     * @see #Intent(Context, Class)
2841     * @see #setClass
2842     * @see #setComponent
2843     */
2844    public Intent(String action, Uri uri,
2845            Context packageContext, Class<?> cls) {
2846        mAction = action;
2847        mData = uri;
2848        mComponent = new ComponentName(packageContext, cls);
2849    }
2850
2851    /**
2852     * Call {@link #parseUri} with 0 flags.
2853     * @deprecated Use {@link #parseUri} instead.
2854     */
2855    @Deprecated
2856    public static Intent getIntent(String uri) throws URISyntaxException {
2857        return parseUri(uri, 0);
2858    }
2859
2860    /**
2861     * Create an intent from a URI.  This URI may encode the action,
2862     * category, and other intent fields, if it was returned by
2863     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2864     * will be the entire URI and its action will be ACTION_VIEW.
2865     *
2866     * <p>The URI given here must not be relative -- that is, it must include
2867     * the scheme and full path.
2868     *
2869     * @param uri The URI to turn into an Intent.
2870     * @param flags Additional processing flags.  Either 0 or
2871     * {@link #URI_INTENT_SCHEME}.
2872     *
2873     * @return Intent The newly created Intent object.
2874     *
2875     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2876     * it bad (as parsed by the Uri class) or the Intent data within the
2877     * URI is invalid.
2878     *
2879     * @see #toUri
2880     */
2881    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2882        int i = 0;
2883        try {
2884            // Validate intent scheme for if requested.
2885            if ((flags&URI_INTENT_SCHEME) != 0) {
2886                if (!uri.startsWith("intent:")) {
2887                    Intent intent = new Intent(ACTION_VIEW);
2888                    try {
2889                        intent.setData(Uri.parse(uri));
2890                    } catch (IllegalArgumentException e) {
2891                        throw new URISyntaxException(uri, e.getMessage());
2892                    }
2893                    return intent;
2894                }
2895            }
2896
2897            // simple case
2898            i = uri.lastIndexOf("#");
2899            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2900
2901            // old format Intent URI
2902            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2903
2904            // new format
2905            Intent intent = new Intent(ACTION_VIEW);
2906
2907            // fetch data part, if present
2908            String data = i >= 0 ? uri.substring(0, i) : null;
2909            String scheme = null;
2910            i += "#Intent;".length();
2911
2912            // loop over contents of Intent, all name=value;
2913            while (!uri.startsWith("end", i)) {
2914                int eq = uri.indexOf('=', i);
2915                int semi = uri.indexOf(';', eq);
2916                String value = Uri.decode(uri.substring(eq + 1, semi));
2917
2918                // action
2919                if (uri.startsWith("action=", i)) {
2920                    intent.mAction = value;
2921                }
2922
2923                // categories
2924                else if (uri.startsWith("category=", i)) {
2925                    intent.addCategory(value);
2926                }
2927
2928                // type
2929                else if (uri.startsWith("type=", i)) {
2930                    intent.mType = value;
2931                }
2932
2933                // launch flags
2934                else if (uri.startsWith("launchFlags=", i)) {
2935                    intent.mFlags = Integer.decode(value).intValue();
2936                }
2937
2938                // package
2939                else if (uri.startsWith("package=", i)) {
2940                    intent.mPackage = value;
2941                }
2942
2943                // component
2944                else if (uri.startsWith("component=", i)) {
2945                    intent.mComponent = ComponentName.unflattenFromString(value);
2946                }
2947
2948                // scheme
2949                else if (uri.startsWith("scheme=", i)) {
2950                    scheme = value;
2951                }
2952
2953                // source bounds
2954                else if (uri.startsWith("sourceBounds=", i)) {
2955                    intent.mSourceBounds = Rect.unflattenFromString(value);
2956                }
2957
2958                // extra
2959                else {
2960                    String key = Uri.decode(uri.substring(i + 2, eq));
2961                    // create Bundle if it doesn't already exist
2962                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2963                    Bundle b = intent.mExtras;
2964                    // add EXTRA
2965                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2966                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2967                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2968                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2969                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2970                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2971                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2972                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2973                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2974                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2975                }
2976
2977                // move to the next item
2978                i = semi + 1;
2979            }
2980
2981            if (data != null) {
2982                if (data.startsWith("intent:")) {
2983                    data = data.substring(7);
2984                    if (scheme != null) {
2985                        data = scheme + ':' + data;
2986                    }
2987                }
2988
2989                if (data.length() > 0) {
2990                    try {
2991                        intent.mData = Uri.parse(data);
2992                    } catch (IllegalArgumentException e) {
2993                        throw new URISyntaxException(uri, e.getMessage());
2994                    }
2995                }
2996            }
2997
2998            return intent;
2999
3000        } catch (IndexOutOfBoundsException e) {
3001            throw new URISyntaxException(uri, "illegal Intent URI format", i);
3002        }
3003    }
3004
3005    public static Intent getIntentOld(String uri) throws URISyntaxException {
3006        Intent intent;
3007
3008        int i = uri.lastIndexOf('#');
3009        if (i >= 0) {
3010            String action = null;
3011            final int intentFragmentStart = i;
3012            boolean isIntentFragment = false;
3013
3014            i++;
3015
3016            if (uri.regionMatches(i, "action(", 0, 7)) {
3017                isIntentFragment = true;
3018                i += 7;
3019                int j = uri.indexOf(')', i);
3020                action = uri.substring(i, j);
3021                i = j + 1;
3022            }
3023
3024            intent = new Intent(action);
3025
3026            if (uri.regionMatches(i, "categories(", 0, 11)) {
3027                isIntentFragment = true;
3028                i += 11;
3029                int j = uri.indexOf(')', i);
3030                while (i < j) {
3031                    int sep = uri.indexOf('!', i);
3032                    if (sep < 0) sep = j;
3033                    if (i < sep) {
3034                        intent.addCategory(uri.substring(i, sep));
3035                    }
3036                    i = sep + 1;
3037                }
3038                i = j + 1;
3039            }
3040
3041            if (uri.regionMatches(i, "type(", 0, 5)) {
3042                isIntentFragment = true;
3043                i += 5;
3044                int j = uri.indexOf(')', i);
3045                intent.mType = uri.substring(i, j);
3046                i = j + 1;
3047            }
3048
3049            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
3050                isIntentFragment = true;
3051                i += 12;
3052                int j = uri.indexOf(')', i);
3053                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
3054                i = j + 1;
3055            }
3056
3057            if (uri.regionMatches(i, "component(", 0, 10)) {
3058                isIntentFragment = true;
3059                i += 10;
3060                int j = uri.indexOf(')', i);
3061                int sep = uri.indexOf('!', i);
3062                if (sep >= 0 && sep < j) {
3063                    String pkg = uri.substring(i, sep);
3064                    String cls = uri.substring(sep + 1, j);
3065                    intent.mComponent = new ComponentName(pkg, cls);
3066                }
3067                i = j + 1;
3068            }
3069
3070            if (uri.regionMatches(i, "extras(", 0, 7)) {
3071                isIntentFragment = true;
3072                i += 7;
3073
3074                final int closeParen = uri.indexOf(')', i);
3075                if (closeParen == -1) throw new URISyntaxException(uri,
3076                        "EXTRA missing trailing ')'", i);
3077
3078                while (i < closeParen) {
3079                    // fetch the key value
3080                    int j = uri.indexOf('=', i);
3081                    if (j <= i + 1 || i >= closeParen) {
3082                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
3083                    }
3084                    char type = uri.charAt(i);
3085                    i++;
3086                    String key = uri.substring(i, j);
3087                    i = j + 1;
3088
3089                    // get type-value
3090                    j = uri.indexOf('!', i);
3091                    if (j == -1 || j >= closeParen) j = closeParen;
3092                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
3093                    String value = uri.substring(i, j);
3094                    i = j;
3095
3096                    // create Bundle if it doesn't already exist
3097                    if (intent.mExtras == null) intent.mExtras = new Bundle();
3098
3099                    // add item to bundle
3100                    try {
3101                        switch (type) {
3102                            case 'S':
3103                                intent.mExtras.putString(key, Uri.decode(value));
3104                                break;
3105                            case 'B':
3106                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
3107                                break;
3108                            case 'b':
3109                                intent.mExtras.putByte(key, Byte.parseByte(value));
3110                                break;
3111                            case 'c':
3112                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
3113                                break;
3114                            case 'd':
3115                                intent.mExtras.putDouble(key, Double.parseDouble(value));
3116                                break;
3117                            case 'f':
3118                                intent.mExtras.putFloat(key, Float.parseFloat(value));
3119                                break;
3120                            case 'i':
3121                                intent.mExtras.putInt(key, Integer.parseInt(value));
3122                                break;
3123                            case 'l':
3124                                intent.mExtras.putLong(key, Long.parseLong(value));
3125                                break;
3126                            case 's':
3127                                intent.mExtras.putShort(key, Short.parseShort(value));
3128                                break;
3129                            default:
3130                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
3131                        }
3132                    } catch (NumberFormatException e) {
3133                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
3134                    }
3135
3136                    char ch = uri.charAt(i);
3137                    if (ch == ')') break;
3138                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
3139                    i++;
3140                }
3141            }
3142
3143            if (isIntentFragment) {
3144                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
3145            } else {
3146                intent.mData = Uri.parse(uri);
3147            }
3148
3149            if (intent.mAction == null) {
3150                // By default, if no action is specified, then use VIEW.
3151                intent.mAction = ACTION_VIEW;
3152            }
3153
3154        } else {
3155            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
3156        }
3157
3158        return intent;
3159    }
3160
3161    /**
3162     * Retrieve the general action to be performed, such as
3163     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
3164     * the information in the intent should be interpreted -- most importantly,
3165     * what to do with the data returned by {@link #getData}.
3166     *
3167     * @return The action of this intent or null if none is specified.
3168     *
3169     * @see #setAction
3170     */
3171    public String getAction() {
3172        return mAction;
3173    }
3174
3175    /**
3176     * Retrieve data this intent is operating on.  This URI specifies the name
3177     * of the data; often it uses the content: scheme, specifying data in a
3178     * content provider.  Other schemes may be handled by specific activities,
3179     * such as http: by the web browser.
3180     *
3181     * @return The URI of the data this intent is targeting or null.
3182     *
3183     * @see #getScheme
3184     * @see #setData
3185     */
3186    public Uri getData() {
3187        return mData;
3188    }
3189
3190    /**
3191     * The same as {@link #getData()}, but returns the URI as an encoded
3192     * String.
3193     */
3194    public String getDataString() {
3195        return mData != null ? mData.toString() : null;
3196    }
3197
3198    /**
3199     * Return the scheme portion of the intent's data.  If the data is null or
3200     * does not include a scheme, null is returned.  Otherwise, the scheme
3201     * prefix without the final ':' is returned, i.e. "http".
3202     *
3203     * <p>This is the same as calling getData().getScheme() (and checking for
3204     * null data).
3205     *
3206     * @return The scheme of this intent.
3207     *
3208     * @see #getData
3209     */
3210    public String getScheme() {
3211        return mData != null ? mData.getScheme() : null;
3212    }
3213
3214    /**
3215     * Retrieve any explicit MIME type included in the intent.  This is usually
3216     * null, as the type is determined by the intent data.
3217     *
3218     * @return If a type was manually set, it is returned; else null is
3219     *         returned.
3220     *
3221     * @see #resolveType(ContentResolver)
3222     * @see #setType
3223     */
3224    public String getType() {
3225        return mType;
3226    }
3227
3228    /**
3229     * Return the MIME data type of this intent.  If the type field is
3230     * explicitly set, that is simply returned.  Otherwise, if the data is set,
3231     * the type of that data is returned.  If neither fields are set, a null is
3232     * returned.
3233     *
3234     * @return The MIME type of this intent.
3235     *
3236     * @see #getType
3237     * @see #resolveType(ContentResolver)
3238     */
3239    public String resolveType(Context context) {
3240        return resolveType(context.getContentResolver());
3241    }
3242
3243    /**
3244     * Return the MIME data type of this intent.  If the type field is
3245     * explicitly set, that is simply returned.  Otherwise, if the data is set,
3246     * the type of that data is returned.  If neither fields are set, a null is
3247     * returned.
3248     *
3249     * @param resolver A ContentResolver that can be used to determine the MIME
3250     *                 type of the intent's data.
3251     *
3252     * @return The MIME type of this intent.
3253     *
3254     * @see #getType
3255     * @see #resolveType(Context)
3256     */
3257    public String resolveType(ContentResolver resolver) {
3258        if (mType != null) {
3259            return mType;
3260        }
3261        if (mData != null) {
3262            if ("content".equals(mData.getScheme())) {
3263                return resolver.getType(mData);
3264            }
3265        }
3266        return null;
3267    }
3268
3269    /**
3270     * Return the MIME data type of this intent, only if it will be needed for
3271     * intent resolution.  This is not generally useful for application code;
3272     * it is used by the frameworks for communicating with back-end system
3273     * services.
3274     *
3275     * @param resolver A ContentResolver that can be used to determine the MIME
3276     *                 type of the intent's data.
3277     *
3278     * @return The MIME type of this intent, or null if it is unknown or not
3279     *         needed.
3280     */
3281    public String resolveTypeIfNeeded(ContentResolver resolver) {
3282        if (mComponent != null) {
3283            return mType;
3284        }
3285        return resolveType(resolver);
3286    }
3287
3288    /**
3289     * Check if an category exists in the intent.
3290     *
3291     * @param category The category to check.
3292     *
3293     * @return boolean True if the intent contains the category, else false.
3294     *
3295     * @see #getCategories
3296     * @see #addCategory
3297     */
3298    public boolean hasCategory(String category) {
3299        return mCategories != null && mCategories.contains(category);
3300    }
3301
3302    /**
3303     * Return the set of all categories in the intent.  If there are no categories,
3304     * returns NULL.
3305     *
3306     * @return Set The set of categories you can examine.  Do not modify!
3307     *
3308     * @see #hasCategory
3309     * @see #addCategory
3310     */
3311    public Set<String> getCategories() {
3312        return mCategories;
3313    }
3314
3315    /**
3316     * Sets the ClassLoader that will be used when unmarshalling
3317     * any Parcelable values from the extras of this Intent.
3318     *
3319     * @param loader a ClassLoader, or null to use the default loader
3320     * at the time of unmarshalling.
3321     */
3322    public void setExtrasClassLoader(ClassLoader loader) {
3323        if (mExtras != null) {
3324            mExtras.setClassLoader(loader);
3325        }
3326    }
3327
3328    /**
3329     * Returns true if an extra value is associated with the given name.
3330     * @param name the extra's name
3331     * @return true if the given extra is present.
3332     */
3333    public boolean hasExtra(String name) {
3334        return mExtras != null && mExtras.containsKey(name);
3335    }
3336
3337    /**
3338     * Returns true if the Intent's extras contain a parcelled file descriptor.
3339     * @return true if the Intent contains a parcelled file descriptor.
3340     */
3341    public boolean hasFileDescriptors() {
3342        return mExtras != null && mExtras.hasFileDescriptors();
3343    }
3344
3345    /**
3346     * Retrieve extended data from the intent.
3347     *
3348     * @param name The name of the desired item.
3349     *
3350     * @return the value of an item that previously added with putExtra()
3351     * or null if none was found.
3352     *
3353     * @deprecated
3354     * @hide
3355     */
3356    @Deprecated
3357    public Object getExtra(String name) {
3358        return getExtra(name, null);
3359    }
3360
3361    /**
3362     * Retrieve extended data from the intent.
3363     *
3364     * @param name The name of the desired item.
3365     * @param defaultValue the value to be returned if no value of the desired
3366     * type is stored with the given name.
3367     *
3368     * @return the value of an item that previously added with putExtra()
3369     * or the default value if none was found.
3370     *
3371     * @see #putExtra(String, boolean)
3372     */
3373    public boolean getBooleanExtra(String name, boolean defaultValue) {
3374        return mExtras == null ? defaultValue :
3375            mExtras.getBoolean(name, defaultValue);
3376    }
3377
3378    /**
3379     * Retrieve extended data from the intent.
3380     *
3381     * @param name The name of the desired item.
3382     * @param defaultValue the value to be returned if no value of the desired
3383     * type is stored with the given name.
3384     *
3385     * @return the value of an item that previously added with putExtra()
3386     * or the default value if none was found.
3387     *
3388     * @see #putExtra(String, byte)
3389     */
3390    public byte getByteExtra(String name, byte defaultValue) {
3391        return mExtras == null ? defaultValue :
3392            mExtras.getByte(name, defaultValue);
3393    }
3394
3395    /**
3396     * Retrieve extended data from the intent.
3397     *
3398     * @param name The name of the desired item.
3399     * @param defaultValue the value to be returned if no value of the desired
3400     * type is stored with the given name.
3401     *
3402     * @return the value of an item that previously added with putExtra()
3403     * or the default value if none was found.
3404     *
3405     * @see #putExtra(String, short)
3406     */
3407    public short getShortExtra(String name, short defaultValue) {
3408        return mExtras == null ? defaultValue :
3409            mExtras.getShort(name, defaultValue);
3410    }
3411
3412    /**
3413     * Retrieve extended data from the intent.
3414     *
3415     * @param name The name of the desired item.
3416     * @param defaultValue the value to be returned if no value of the desired
3417     * type is stored with the given name.
3418     *
3419     * @return the value of an item that previously added with putExtra()
3420     * or the default value if none was found.
3421     *
3422     * @see #putExtra(String, char)
3423     */
3424    public char getCharExtra(String name, char defaultValue) {
3425        return mExtras == null ? defaultValue :
3426            mExtras.getChar(name, defaultValue);
3427    }
3428
3429    /**
3430     * Retrieve extended data from the intent.
3431     *
3432     * @param name The name of the desired item.
3433     * @param defaultValue the value to be returned if no value of the desired
3434     * type is stored with the given name.
3435     *
3436     * @return the value of an item that previously added with putExtra()
3437     * or the default value if none was found.
3438     *
3439     * @see #putExtra(String, int)
3440     */
3441    public int getIntExtra(String name, int defaultValue) {
3442        return mExtras == null ? defaultValue :
3443            mExtras.getInt(name, defaultValue);
3444    }
3445
3446    /**
3447     * Retrieve extended data from the intent.
3448     *
3449     * @param name The name of the desired item.
3450     * @param defaultValue the value to be returned if no value of the desired
3451     * type is stored with the given name.
3452     *
3453     * @return the value of an item that previously added with putExtra()
3454     * or the default value if none was found.
3455     *
3456     * @see #putExtra(String, long)
3457     */
3458    public long getLongExtra(String name, long defaultValue) {
3459        return mExtras == null ? defaultValue :
3460            mExtras.getLong(name, defaultValue);
3461    }
3462
3463    /**
3464     * Retrieve extended data from the intent.
3465     *
3466     * @param name The name of the desired item.
3467     * @param defaultValue the value to be returned if no value of the desired
3468     * type is stored with the given name.
3469     *
3470     * @return the value of an item that previously added with putExtra(),
3471     * or the default value if no such item is present
3472     *
3473     * @see #putExtra(String, float)
3474     */
3475    public float getFloatExtra(String name, float defaultValue) {
3476        return mExtras == null ? defaultValue :
3477            mExtras.getFloat(name, defaultValue);
3478    }
3479
3480    /**
3481     * Retrieve extended data from the intent.
3482     *
3483     * @param name The name of the desired item.
3484     * @param defaultValue the value to be returned if no value of the desired
3485     * type is stored with the given name.
3486     *
3487     * @return the value of an item that previously added with putExtra()
3488     * or the default value if none was found.
3489     *
3490     * @see #putExtra(String, double)
3491     */
3492    public double getDoubleExtra(String name, double defaultValue) {
3493        return mExtras == null ? defaultValue :
3494            mExtras.getDouble(name, defaultValue);
3495    }
3496
3497    /**
3498     * Retrieve extended data from the intent.
3499     *
3500     * @param name The name of the desired item.
3501     *
3502     * @return the value of an item that previously added with putExtra()
3503     * or null if no String value was found.
3504     *
3505     * @see #putExtra(String, String)
3506     */
3507    public String getStringExtra(String name) {
3508        return mExtras == null ? null : mExtras.getString(name);
3509    }
3510
3511    /**
3512     * Retrieve extended data from the intent.
3513     *
3514     * @param name The name of the desired item.
3515     *
3516     * @return the value of an item that previously added with putExtra()
3517     * or null if no CharSequence value was found.
3518     *
3519     * @see #putExtra(String, CharSequence)
3520     */
3521    public CharSequence getCharSequenceExtra(String name) {
3522        return mExtras == null ? null : mExtras.getCharSequence(name);
3523    }
3524
3525    /**
3526     * Retrieve extended data from the intent.
3527     *
3528     * @param name The name of the desired item.
3529     *
3530     * @return the value of an item that previously added with putExtra()
3531     * or null if no Parcelable value was found.
3532     *
3533     * @see #putExtra(String, Parcelable)
3534     */
3535    public <T extends Parcelable> T getParcelableExtra(String name) {
3536        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3537    }
3538
3539    /**
3540     * Retrieve extended data from the intent.
3541     *
3542     * @param name The name of the desired item.
3543     *
3544     * @return the value of an item that previously added with putExtra()
3545     * or null if no Parcelable[] value was found.
3546     *
3547     * @see #putExtra(String, Parcelable[])
3548     */
3549    public Parcelable[] getParcelableArrayExtra(String name) {
3550        return mExtras == null ? null : mExtras.getParcelableArray(name);
3551    }
3552
3553    /**
3554     * Retrieve extended data from the intent.
3555     *
3556     * @param name The name of the desired item.
3557     *
3558     * @return the value of an item that previously added with putExtra()
3559     * or null if no ArrayList<Parcelable> value was found.
3560     *
3561     * @see #putParcelableArrayListExtra(String, ArrayList)
3562     */
3563    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3564        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
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 Serializable value was found.
3574     *
3575     * @see #putExtra(String, Serializable)
3576     */
3577    public Serializable getSerializableExtra(String name) {
3578        return mExtras == null ? null : mExtras.getSerializable(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 ArrayList<Integer> value was found.
3588     *
3589     * @see #putIntegerArrayListExtra(String, ArrayList)
3590     */
3591    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3592        return mExtras == null ? null : mExtras.getIntegerArrayList(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 ArrayList<String> value was found.
3602     *
3603     * @see #putStringArrayListExtra(String, ArrayList)
3604     */
3605    public ArrayList<String> getStringArrayListExtra(String name) {
3606        return mExtras == null ? null : mExtras.getStringArrayList(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 ArrayList<CharSequence> value was found.
3616     *
3617     * @see #putCharSequenceArrayListExtra(String, ArrayList)
3618     */
3619    public ArrayList<CharSequence> getCharSequenceArrayListExtra(String name) {
3620        return mExtras == null ? null : mExtras.getCharSequenceArrayList(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 boolean array value was found.
3630     *
3631     * @see #putExtra(String, boolean[])
3632     */
3633    public boolean[] getBooleanArrayExtra(String name) {
3634        return mExtras == null ? null : mExtras.getBooleanArray(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 byte array value was found.
3644     *
3645     * @see #putExtra(String, byte[])
3646     */
3647    public byte[] getByteArrayExtra(String name) {
3648        return mExtras == null ? null : mExtras.getByteArray(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 short array value was found.
3658     *
3659     * @see #putExtra(String, short[])
3660     */
3661    public short[] getShortArrayExtra(String name) {
3662        return mExtras == null ? null : mExtras.getShortArray(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 char array value was found.
3672     *
3673     * @see #putExtra(String, char[])
3674     */
3675    public char[] getCharArrayExtra(String name) {
3676        return mExtras == null ? null : mExtras.getCharArray(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 int array value was found.
3686     *
3687     * @see #putExtra(String, int[])
3688     */
3689    public int[] getIntArrayExtra(String name) {
3690        return mExtras == null ? null : mExtras.getIntArray(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 long array value was found.
3700     *
3701     * @see #putExtra(String, long[])
3702     */
3703    public long[] getLongArrayExtra(String name) {
3704        return mExtras == null ? null : mExtras.getLongArray(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 float array value was found.
3714     *
3715     * @see #putExtra(String, float[])
3716     */
3717    public float[] getFloatArrayExtra(String name) {
3718        return mExtras == null ? null : mExtras.getFloatArray(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 double array value was found.
3728     *
3729     * @see #putExtra(String, double[])
3730     */
3731    public double[] getDoubleArrayExtra(String name) {
3732        return mExtras == null ? null : mExtras.getDoubleArray(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 String array value was found.
3742     *
3743     * @see #putExtra(String, String[])
3744     */
3745    public String[] getStringArrayExtra(String name) {
3746        return mExtras == null ? null : mExtras.getStringArray(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 CharSequence array value was found.
3756     *
3757     * @see #putExtra(String, CharSequence[])
3758     */
3759    public CharSequence[] getCharSequenceArrayExtra(String name) {
3760        return mExtras == null ? null : mExtras.getCharSequenceArray(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 Bundle value was found.
3770     *
3771     * @see #putExtra(String, Bundle)
3772     */
3773    public Bundle getBundleExtra(String name) {
3774        return mExtras == null ? null : mExtras.getBundle(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 IBinder value was found.
3784     *
3785     * @see #putExtra(String, IBinder)
3786     *
3787     * @deprecated
3788     * @hide
3789     */
3790    @Deprecated
3791    public IBinder getIBinderExtra(String name) {
3792        return mExtras == null ? null : mExtras.getIBinder(name);
3793    }
3794
3795    /**
3796     * Retrieve extended data from the intent.
3797     *
3798     * @param name The name of the desired item.
3799     * @param defaultValue The default value to return in case no item is
3800     * associated with the key 'name'
3801     *
3802     * @return the value of an item that previously added with putExtra()
3803     * or defaultValue if none was found.
3804     *
3805     * @see #putExtra
3806     *
3807     * @deprecated
3808     * @hide
3809     */
3810    @Deprecated
3811    public Object getExtra(String name, Object defaultValue) {
3812        Object result = defaultValue;
3813        if (mExtras != null) {
3814            Object result2 = mExtras.get(name);
3815            if (result2 != null) {
3816                result = result2;
3817            }
3818        }
3819
3820        return result;
3821    }
3822
3823    /**
3824     * Retrieves a map of extended data from the intent.
3825     *
3826     * @return the map of all extras previously added with putExtra(),
3827     * or null if none have been added.
3828     */
3829    public Bundle getExtras() {
3830        return (mExtras != null)
3831                ? new Bundle(mExtras)
3832                : null;
3833    }
3834
3835    /**
3836     * Retrieve any special flags associated with this intent.  You will
3837     * normally just set them with {@link #setFlags} and let the system
3838     * take the appropriate action with them.
3839     *
3840     * @return int The currently set flags.
3841     *
3842     * @see #setFlags
3843     */
3844    public int getFlags() {
3845        return mFlags;
3846    }
3847
3848    /**
3849     * Retrieve the application package name this Intent is limited to.  When
3850     * resolving an Intent, if non-null this limits the resolution to only
3851     * components in the given application package.
3852     *
3853     * @return The name of the application package for the Intent.
3854     *
3855     * @see #resolveActivity
3856     * @see #setPackage
3857     */
3858    public String getPackage() {
3859        return mPackage;
3860    }
3861
3862    /**
3863     * Retrieve the concrete component associated with the intent.  When receiving
3864     * an intent, this is the component that was found to best handle it (that is,
3865     * yourself) and will always be non-null; in all other cases it will be
3866     * null unless explicitly set.
3867     *
3868     * @return The name of the application component to handle the intent.
3869     *
3870     * @see #resolveActivity
3871     * @see #setComponent
3872     */
3873    public ComponentName getComponent() {
3874        return mComponent;
3875    }
3876
3877    /**
3878     * Get the bounds of the sender of this intent, in screen coordinates.  This can be
3879     * used as a hint to the receiver for animations and the like.  Null means that there
3880     * is no source bounds.
3881     */
3882    public Rect getSourceBounds() {
3883        return mSourceBounds;
3884    }
3885
3886    /**
3887     * Return the Activity component that should be used to handle this intent.
3888     * The appropriate component is determined based on the information in the
3889     * intent, evaluated as follows:
3890     *
3891     * <p>If {@link #getComponent} returns an explicit class, that is returned
3892     * without any further consideration.
3893     *
3894     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3895     * category to be considered.
3896     *
3897     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3898     * action.
3899     *
3900     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3901     * this type.
3902     *
3903     * <p>If {@link #addCategory} has added any categories, the activity must
3904     * handle ALL of the categories specified.
3905     *
3906     * <p>If {@link #getPackage} is non-NULL, only activity components in
3907     * that application package will be considered.
3908     *
3909     * <p>If there are no activities that satisfy all of these conditions, a
3910     * null string is returned.
3911     *
3912     * <p>If multiple activities are found to satisfy the intent, the one with
3913     * the highest priority will be used.  If there are multiple activities
3914     * with the same priority, the system will either pick the best activity
3915     * based on user preference, or resolve to a system class that will allow
3916     * the user to pick an activity and forward from there.
3917     *
3918     * <p>This method is implemented simply by calling
3919     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3920     * true.</p>
3921     * <p> This API is called for you as part of starting an activity from an
3922     * intent.  You do not normally need to call it yourself.</p>
3923     *
3924     * @param pm The package manager with which to resolve the Intent.
3925     *
3926     * @return Name of the component implementing an activity that can
3927     *         display the intent.
3928     *
3929     * @see #setComponent
3930     * @see #getComponent
3931     * @see #resolveActivityInfo
3932     */
3933    public ComponentName resolveActivity(PackageManager pm) {
3934        if (mComponent != null) {
3935            return mComponent;
3936        }
3937
3938        ResolveInfo info = pm.resolveActivity(
3939            this, PackageManager.MATCH_DEFAULT_ONLY);
3940        if (info != null) {
3941            return new ComponentName(
3942                    info.activityInfo.applicationInfo.packageName,
3943                    info.activityInfo.name);
3944        }
3945
3946        return null;
3947    }
3948
3949    /**
3950     * Resolve the Intent into an {@link ActivityInfo}
3951     * describing the activity that should execute the intent.  Resolution
3952     * follows the same rules as described for {@link #resolveActivity}, but
3953     * you get back the completely information about the resolved activity
3954     * instead of just its class name.
3955     *
3956     * @param pm The package manager with which to resolve the Intent.
3957     * @param flags Addition information to retrieve as per
3958     * {@link PackageManager#getActivityInfo(ComponentName, int)
3959     * PackageManager.getActivityInfo()}.
3960     *
3961     * @return PackageManager.ActivityInfo
3962     *
3963     * @see #resolveActivity
3964     */
3965    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3966        ActivityInfo ai = null;
3967        if (mComponent != null) {
3968            try {
3969                ai = pm.getActivityInfo(mComponent, flags);
3970            } catch (PackageManager.NameNotFoundException e) {
3971                // ignore
3972            }
3973        } else {
3974            ResolveInfo info = pm.resolveActivity(
3975                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
3976            if (info != null) {
3977                ai = info.activityInfo;
3978            }
3979        }
3980
3981        return ai;
3982    }
3983
3984    /**
3985     * Set the general action to be performed.
3986     *
3987     * @param action An action name, such as ACTION_VIEW.  Application-specific
3988     *               actions should be prefixed with the vendor's package name.
3989     *
3990     * @return Returns the same Intent object, for chaining multiple calls
3991     * into a single statement.
3992     *
3993     * @see #getAction
3994     */
3995    public Intent setAction(String action) {
3996        mAction = action;
3997        return this;
3998    }
3999
4000    /**
4001     * Set the data this intent is operating on.  This method automatically
4002     * clears any type that was previously set by {@link #setType}.
4003     *
4004     * <p><em>Note: scheme and host name matching in the Android framework is
4005     * case-sensitive, unlike the formal RFC.  As a result,
4006     * you should always ensure that you write your Uri with these elements
4007     * using lower case letters, and normalize any Uris you receive from
4008     * outside of Android to ensure the scheme and host is lower case.</em></p>
4009     *
4010     * @param data The URI of the data this intent is now targeting.
4011     *
4012     * @return Returns the same Intent object, for chaining multiple calls
4013     * into a single statement.
4014     *
4015     * @see #getData
4016     * @see #setType
4017     * @see #setDataAndType
4018     */
4019    public Intent setData(Uri data) {
4020        mData = data;
4021        mType = null;
4022        return this;
4023    }
4024
4025    /**
4026     * Set an explicit MIME data type.  This is used to create intents that
4027     * only specify a type and not data, for example to indicate the type of
4028     * data to return.  This method automatically clears any data that was
4029     * previously set by {@link #setData}.
4030     *
4031     * <p><em>Note: MIME type matching in the Android framework is
4032     * case-sensitive, unlike formal RFC MIME types.  As a result,
4033     * you should always write your MIME types with lower case letters,
4034     * and any MIME types you receive from outside of Android should be
4035     * converted to lower case before supplying them here.</em></p>
4036     *
4037     * @param type The MIME type of the data being handled by this intent.
4038     *
4039     * @return Returns the same Intent object, for chaining multiple calls
4040     * into a single statement.
4041     *
4042     * @see #getType
4043     * @see #setData
4044     * @see #setDataAndType
4045     */
4046    public Intent setType(String type) {
4047        mData = null;
4048        mType = type;
4049        return this;
4050    }
4051
4052    /**
4053     * (Usually optional) Set the data for the intent along with an explicit
4054     * MIME data type.  This method should very rarely be used -- it allows you
4055     * to override the MIME type that would ordinarily be inferred from the
4056     * data with your own type given here.
4057     *
4058     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
4059     * Android framework is case-sensitive, unlike the formal RFC definitions.
4060     * As a result, you should always write these elements with lower case letters,
4061     * and normalize any MIME types or Uris you receive from
4062     * outside of Android to ensure these elements are lower case before
4063     * supplying them here.</em></p>
4064     *
4065     * @param data The URI of the data this intent is now targeting.
4066     * @param type The MIME type of the data being handled by this intent.
4067     *
4068     * @return Returns the same Intent object, for chaining multiple calls
4069     * into a single statement.
4070     *
4071     * @see #setData
4072     * @see #setType
4073     */
4074    public Intent setDataAndType(Uri data, String type) {
4075        mData = data;
4076        mType = type;
4077        return this;
4078    }
4079
4080    /**
4081     * Add a new category to the intent.  Categories provide additional detail
4082     * about the action the intent is perform.  When resolving an intent, only
4083     * activities that provide <em>all</em> of the requested categories will be
4084     * used.
4085     *
4086     * @param category The desired category.  This can be either one of the
4087     *               predefined Intent categories, or a custom category in your own
4088     *               namespace.
4089     *
4090     * @return Returns the same Intent object, for chaining multiple calls
4091     * into a single statement.
4092     *
4093     * @see #hasCategory
4094     * @see #removeCategory
4095     */
4096    public Intent addCategory(String category) {
4097        if (mCategories == null) {
4098            mCategories = new HashSet<String>();
4099        }
4100        mCategories.add(category);
4101        return this;
4102    }
4103
4104    /**
4105     * Remove an category from an intent.
4106     *
4107     * @param category The category to remove.
4108     *
4109     * @see #addCategory
4110     */
4111    public void removeCategory(String category) {
4112        if (mCategories != null) {
4113            mCategories.remove(category);
4114            if (mCategories.size() == 0) {
4115                mCategories = null;
4116            }
4117        }
4118    }
4119
4120    /**
4121     * Add extended data to the intent.  The name must include a package
4122     * prefix, for example the app com.android.contacts would use names
4123     * like "com.android.contacts.ShowAll".
4124     *
4125     * @param name The name of the extra data, with package prefix.
4126     * @param value The boolean data value.
4127     *
4128     * @return Returns the same Intent object, for chaining multiple calls
4129     * into a single statement.
4130     *
4131     * @see #putExtras
4132     * @see #removeExtra
4133     * @see #getBooleanExtra(String, boolean)
4134     */
4135    public Intent putExtra(String name, boolean value) {
4136        if (mExtras == null) {
4137            mExtras = new Bundle();
4138        }
4139        mExtras.putBoolean(name, value);
4140        return this;
4141    }
4142
4143    /**
4144     * Add extended data to the intent.  The name must include a package
4145     * prefix, for example the app com.android.contacts would use names
4146     * like "com.android.contacts.ShowAll".
4147     *
4148     * @param name The name of the extra data, with package prefix.
4149     * @param value The byte data value.
4150     *
4151     * @return Returns the same Intent object, for chaining multiple calls
4152     * into a single statement.
4153     *
4154     * @see #putExtras
4155     * @see #removeExtra
4156     * @see #getByteExtra(String, byte)
4157     */
4158    public Intent putExtra(String name, byte value) {
4159        if (mExtras == null) {
4160            mExtras = new Bundle();
4161        }
4162        mExtras.putByte(name, value);
4163        return this;
4164    }
4165
4166    /**
4167     * Add extended data to the intent.  The name must include a package
4168     * prefix, for example the app com.android.contacts would use names
4169     * like "com.android.contacts.ShowAll".
4170     *
4171     * @param name The name of the extra data, with package prefix.
4172     * @param value The char data value.
4173     *
4174     * @return Returns the same Intent object, for chaining multiple calls
4175     * into a single statement.
4176     *
4177     * @see #putExtras
4178     * @see #removeExtra
4179     * @see #getCharExtra(String, char)
4180     */
4181    public Intent putExtra(String name, char value) {
4182        if (mExtras == null) {
4183            mExtras = new Bundle();
4184        }
4185        mExtras.putChar(name, value);
4186        return this;
4187    }
4188
4189    /**
4190     * Add extended data to the intent.  The name must include a package
4191     * prefix, for example the app com.android.contacts would use names
4192     * like "com.android.contacts.ShowAll".
4193     *
4194     * @param name The name of the extra data, with package prefix.
4195     * @param value The short data value.
4196     *
4197     * @return Returns the same Intent object, for chaining multiple calls
4198     * into a single statement.
4199     *
4200     * @see #putExtras
4201     * @see #removeExtra
4202     * @see #getShortExtra(String, short)
4203     */
4204    public Intent putExtra(String name, short value) {
4205        if (mExtras == null) {
4206            mExtras = new Bundle();
4207        }
4208        mExtras.putShort(name, value);
4209        return this;
4210    }
4211
4212    /**
4213     * Add extended data to the intent.  The name must include a package
4214     * prefix, for example the app com.android.contacts would use names
4215     * like "com.android.contacts.ShowAll".
4216     *
4217     * @param name The name of the extra data, with package prefix.
4218     * @param value The integer data value.
4219     *
4220     * @return Returns the same Intent object, for chaining multiple calls
4221     * into a single statement.
4222     *
4223     * @see #putExtras
4224     * @see #removeExtra
4225     * @see #getIntExtra(String, int)
4226     */
4227    public Intent putExtra(String name, int value) {
4228        if (mExtras == null) {
4229            mExtras = new Bundle();
4230        }
4231        mExtras.putInt(name, value);
4232        return this;
4233    }
4234
4235    /**
4236     * Add extended data to the intent.  The name must include a package
4237     * prefix, for example the app com.android.contacts would use names
4238     * like "com.android.contacts.ShowAll".
4239     *
4240     * @param name The name of the extra data, with package prefix.
4241     * @param value The long data value.
4242     *
4243     * @return Returns the same Intent object, for chaining multiple calls
4244     * into a single statement.
4245     *
4246     * @see #putExtras
4247     * @see #removeExtra
4248     * @see #getLongExtra(String, long)
4249     */
4250    public Intent putExtra(String name, long value) {
4251        if (mExtras == null) {
4252            mExtras = new Bundle();
4253        }
4254        mExtras.putLong(name, value);
4255        return this;
4256    }
4257
4258    /**
4259     * Add extended data to the intent.  The name must include a package
4260     * prefix, for example the app com.android.contacts would use names
4261     * like "com.android.contacts.ShowAll".
4262     *
4263     * @param name The name of the extra data, with package prefix.
4264     * @param value The float data value.
4265     *
4266     * @return Returns the same Intent object, for chaining multiple calls
4267     * into a single statement.
4268     *
4269     * @see #putExtras
4270     * @see #removeExtra
4271     * @see #getFloatExtra(String, float)
4272     */
4273    public Intent putExtra(String name, float value) {
4274        if (mExtras == null) {
4275            mExtras = new Bundle();
4276        }
4277        mExtras.putFloat(name, value);
4278        return this;
4279    }
4280
4281    /**
4282     * Add extended data to the intent.  The name must include a package
4283     * prefix, for example the app com.android.contacts would use names
4284     * like "com.android.contacts.ShowAll".
4285     *
4286     * @param name The name of the extra data, with package prefix.
4287     * @param value The double data value.
4288     *
4289     * @return Returns the same Intent object, for chaining multiple calls
4290     * into a single statement.
4291     *
4292     * @see #putExtras
4293     * @see #removeExtra
4294     * @see #getDoubleExtra(String, double)
4295     */
4296    public Intent putExtra(String name, double value) {
4297        if (mExtras == null) {
4298            mExtras = new Bundle();
4299        }
4300        mExtras.putDouble(name, value);
4301        return this;
4302    }
4303
4304    /**
4305     * Add extended data to the intent.  The name must include a package
4306     * prefix, for example the app com.android.contacts would use names
4307     * like "com.android.contacts.ShowAll".
4308     *
4309     * @param name The name of the extra data, with package prefix.
4310     * @param value The String data value.
4311     *
4312     * @return Returns the same Intent object, for chaining multiple calls
4313     * into a single statement.
4314     *
4315     * @see #putExtras
4316     * @see #removeExtra
4317     * @see #getStringExtra(String)
4318     */
4319    public Intent putExtra(String name, String value) {
4320        if (mExtras == null) {
4321            mExtras = new Bundle();
4322        }
4323        mExtras.putString(name, value);
4324        return this;
4325    }
4326
4327    /**
4328     * Add extended data to the intent.  The name must include a package
4329     * prefix, for example the app com.android.contacts would use names
4330     * like "com.android.contacts.ShowAll".
4331     *
4332     * @param name The name of the extra data, with package prefix.
4333     * @param value The CharSequence data value.
4334     *
4335     * @return Returns the same Intent object, for chaining multiple calls
4336     * into a single statement.
4337     *
4338     * @see #putExtras
4339     * @see #removeExtra
4340     * @see #getCharSequenceExtra(String)
4341     */
4342    public Intent putExtra(String name, CharSequence value) {
4343        if (mExtras == null) {
4344            mExtras = new Bundle();
4345        }
4346        mExtras.putCharSequence(name, value);
4347        return this;
4348    }
4349
4350    /**
4351     * Add extended data to the intent.  The name must include a package
4352     * prefix, for example the app com.android.contacts would use names
4353     * like "com.android.contacts.ShowAll".
4354     *
4355     * @param name The name of the extra data, with package prefix.
4356     * @param value The Parcelable data value.
4357     *
4358     * @return Returns the same Intent object, for chaining multiple calls
4359     * into a single statement.
4360     *
4361     * @see #putExtras
4362     * @see #removeExtra
4363     * @see #getParcelableExtra(String)
4364     */
4365    public Intent putExtra(String name, Parcelable value) {
4366        if (mExtras == null) {
4367            mExtras = new Bundle();
4368        }
4369        mExtras.putParcelable(name, value);
4370        return this;
4371    }
4372
4373    /**
4374     * Add extended data to the intent.  The name must include a package
4375     * prefix, for example the app com.android.contacts would use names
4376     * like "com.android.contacts.ShowAll".
4377     *
4378     * @param name The name of the extra data, with package prefix.
4379     * @param value The Parcelable[] data value.
4380     *
4381     * @return Returns the same Intent object, for chaining multiple calls
4382     * into a single statement.
4383     *
4384     * @see #putExtras
4385     * @see #removeExtra
4386     * @see #getParcelableArrayExtra(String)
4387     */
4388    public Intent putExtra(String name, Parcelable[] value) {
4389        if (mExtras == null) {
4390            mExtras = new Bundle();
4391        }
4392        mExtras.putParcelableArray(name, value);
4393        return this;
4394    }
4395
4396    /**
4397     * Add extended data to the intent.  The name must include a package
4398     * prefix, for example the app com.android.contacts would use names
4399     * like "com.android.contacts.ShowAll".
4400     *
4401     * @param name The name of the extra data, with package prefix.
4402     * @param value The ArrayList<Parcelable> data value.
4403     *
4404     * @return Returns the same Intent object, for chaining multiple calls
4405     * into a single statement.
4406     *
4407     * @see #putExtras
4408     * @see #removeExtra
4409     * @see #getParcelableArrayListExtra(String)
4410     */
4411    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
4412        if (mExtras == null) {
4413            mExtras = new Bundle();
4414        }
4415        mExtras.putParcelableArrayList(name, value);
4416        return this;
4417    }
4418
4419    /**
4420     * Add extended data to the intent.  The name must include a package
4421     * prefix, for example the app com.android.contacts would use names
4422     * like "com.android.contacts.ShowAll".
4423     *
4424     * @param name The name of the extra data, with package prefix.
4425     * @param value The ArrayList<Integer> data value.
4426     *
4427     * @return Returns the same Intent object, for chaining multiple calls
4428     * into a single statement.
4429     *
4430     * @see #putExtras
4431     * @see #removeExtra
4432     * @see #getIntegerArrayListExtra(String)
4433     */
4434    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
4435        if (mExtras == null) {
4436            mExtras = new Bundle();
4437        }
4438        mExtras.putIntegerArrayList(name, value);
4439        return this;
4440    }
4441
4442    /**
4443     * Add extended data to the intent.  The name must include a package
4444     * prefix, for example the app com.android.contacts would use names
4445     * like "com.android.contacts.ShowAll".
4446     *
4447     * @param name The name of the extra data, with package prefix.
4448     * @param value The ArrayList<String> data value.
4449     *
4450     * @return Returns the same Intent object, for chaining multiple calls
4451     * into a single statement.
4452     *
4453     * @see #putExtras
4454     * @see #removeExtra
4455     * @see #getStringArrayListExtra(String)
4456     */
4457    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
4458        if (mExtras == null) {
4459            mExtras = new Bundle();
4460        }
4461        mExtras.putStringArrayList(name, value);
4462        return this;
4463    }
4464
4465    /**
4466     * Add extended data to the intent.  The name must include a package
4467     * prefix, for example the app com.android.contacts would use names
4468     * like "com.android.contacts.ShowAll".
4469     *
4470     * @param name The name of the extra data, with package prefix.
4471     * @param value The ArrayList<CharSequence> data value.
4472     *
4473     * @return Returns the same Intent object, for chaining multiple calls
4474     * into a single statement.
4475     *
4476     * @see #putExtras
4477     * @see #removeExtra
4478     * @see #getCharSequenceArrayListExtra(String)
4479     */
4480    public Intent putCharSequenceArrayListExtra(String name, ArrayList<CharSequence> value) {
4481        if (mExtras == null) {
4482            mExtras = new Bundle();
4483        }
4484        mExtras.putCharSequenceArrayList(name, value);
4485        return this;
4486    }
4487
4488    /**
4489     * Add extended data to the intent.  The name must include a package
4490     * prefix, for example the app com.android.contacts would use names
4491     * like "com.android.contacts.ShowAll".
4492     *
4493     * @param name The name of the extra data, with package prefix.
4494     * @param value The Serializable data value.
4495     *
4496     * @return Returns the same Intent object, for chaining multiple calls
4497     * into a single statement.
4498     *
4499     * @see #putExtras
4500     * @see #removeExtra
4501     * @see #getSerializableExtra(String)
4502     */
4503    public Intent putExtra(String name, Serializable value) {
4504        if (mExtras == null) {
4505            mExtras = new Bundle();
4506        }
4507        mExtras.putSerializable(name, value);
4508        return this;
4509    }
4510
4511    /**
4512     * Add extended data to the intent.  The name must include a package
4513     * prefix, for example the app com.android.contacts would use names
4514     * like "com.android.contacts.ShowAll".
4515     *
4516     * @param name The name of the extra data, with package prefix.
4517     * @param value The boolean array data value.
4518     *
4519     * @return Returns the same Intent object, for chaining multiple calls
4520     * into a single statement.
4521     *
4522     * @see #putExtras
4523     * @see #removeExtra
4524     * @see #getBooleanArrayExtra(String)
4525     */
4526    public Intent putExtra(String name, boolean[] value) {
4527        if (mExtras == null) {
4528            mExtras = new Bundle();
4529        }
4530        mExtras.putBooleanArray(name, value);
4531        return this;
4532    }
4533
4534    /**
4535     * Add extended data to the intent.  The name must include a package
4536     * prefix, for example the app com.android.contacts would use names
4537     * like "com.android.contacts.ShowAll".
4538     *
4539     * @param name The name of the extra data, with package prefix.
4540     * @param value The byte array data value.
4541     *
4542     * @return Returns the same Intent object, for chaining multiple calls
4543     * into a single statement.
4544     *
4545     * @see #putExtras
4546     * @see #removeExtra
4547     * @see #getByteArrayExtra(String)
4548     */
4549    public Intent putExtra(String name, byte[] value) {
4550        if (mExtras == null) {
4551            mExtras = new Bundle();
4552        }
4553        mExtras.putByteArray(name, value);
4554        return this;
4555    }
4556
4557    /**
4558     * Add extended data to the intent.  The name must include a package
4559     * prefix, for example the app com.android.contacts would use names
4560     * like "com.android.contacts.ShowAll".
4561     *
4562     * @param name The name of the extra data, with package prefix.
4563     * @param value The short array data value.
4564     *
4565     * @return Returns the same Intent object, for chaining multiple calls
4566     * into a single statement.
4567     *
4568     * @see #putExtras
4569     * @see #removeExtra
4570     * @see #getShortArrayExtra(String)
4571     */
4572    public Intent putExtra(String name, short[] value) {
4573        if (mExtras == null) {
4574            mExtras = new Bundle();
4575        }
4576        mExtras.putShortArray(name, value);
4577        return this;
4578    }
4579
4580    /**
4581     * Add extended data to the intent.  The name must include a package
4582     * prefix, for example the app com.android.contacts would use names
4583     * like "com.android.contacts.ShowAll".
4584     *
4585     * @param name The name of the extra data, with package prefix.
4586     * @param value The char array data value.
4587     *
4588     * @return Returns the same Intent object, for chaining multiple calls
4589     * into a single statement.
4590     *
4591     * @see #putExtras
4592     * @see #removeExtra
4593     * @see #getCharArrayExtra(String)
4594     */
4595    public Intent putExtra(String name, char[] value) {
4596        if (mExtras == null) {
4597            mExtras = new Bundle();
4598        }
4599        mExtras.putCharArray(name, value);
4600        return this;
4601    }
4602
4603    /**
4604     * Add extended data to the intent.  The name must include a package
4605     * prefix, for example the app com.android.contacts would use names
4606     * like "com.android.contacts.ShowAll".
4607     *
4608     * @param name The name of the extra data, with package prefix.
4609     * @param value The int array data value.
4610     *
4611     * @return Returns the same Intent object, for chaining multiple calls
4612     * into a single statement.
4613     *
4614     * @see #putExtras
4615     * @see #removeExtra
4616     * @see #getIntArrayExtra(String)
4617     */
4618    public Intent putExtra(String name, int[] value) {
4619        if (mExtras == null) {
4620            mExtras = new Bundle();
4621        }
4622        mExtras.putIntArray(name, value);
4623        return this;
4624    }
4625
4626    /**
4627     * Add extended data to the intent.  The name must include a package
4628     * prefix, for example the app com.android.contacts would use names
4629     * like "com.android.contacts.ShowAll".
4630     *
4631     * @param name The name of the extra data, with package prefix.
4632     * @param value The byte array data value.
4633     *
4634     * @return Returns the same Intent object, for chaining multiple calls
4635     * into a single statement.
4636     *
4637     * @see #putExtras
4638     * @see #removeExtra
4639     * @see #getLongArrayExtra(String)
4640     */
4641    public Intent putExtra(String name, long[] value) {
4642        if (mExtras == null) {
4643            mExtras = new Bundle();
4644        }
4645        mExtras.putLongArray(name, value);
4646        return this;
4647    }
4648
4649    /**
4650     * Add extended data to the intent.  The name must include a package
4651     * prefix, for example the app com.android.contacts would use names
4652     * like "com.android.contacts.ShowAll".
4653     *
4654     * @param name The name of the extra data, with package prefix.
4655     * @param value The float array data value.
4656     *
4657     * @return Returns the same Intent object, for chaining multiple calls
4658     * into a single statement.
4659     *
4660     * @see #putExtras
4661     * @see #removeExtra
4662     * @see #getFloatArrayExtra(String)
4663     */
4664    public Intent putExtra(String name, float[] value) {
4665        if (mExtras == null) {
4666            mExtras = new Bundle();
4667        }
4668        mExtras.putFloatArray(name, value);
4669        return this;
4670    }
4671
4672    /**
4673     * Add extended data to the intent.  The name must include a package
4674     * prefix, for example the app com.android.contacts would use names
4675     * like "com.android.contacts.ShowAll".
4676     *
4677     * @param name The name of the extra data, with package prefix.
4678     * @param value The double array data value.
4679     *
4680     * @return Returns the same Intent object, for chaining multiple calls
4681     * into a single statement.
4682     *
4683     * @see #putExtras
4684     * @see #removeExtra
4685     * @see #getDoubleArrayExtra(String)
4686     */
4687    public Intent putExtra(String name, double[] value) {
4688        if (mExtras == null) {
4689            mExtras = new Bundle();
4690        }
4691        mExtras.putDoubleArray(name, value);
4692        return this;
4693    }
4694
4695    /**
4696     * Add extended data to the intent.  The name must include a package
4697     * prefix, for example the app com.android.contacts would use names
4698     * like "com.android.contacts.ShowAll".
4699     *
4700     * @param name The name of the extra data, with package prefix.
4701     * @param value The String array data value.
4702     *
4703     * @return Returns the same Intent object, for chaining multiple calls
4704     * into a single statement.
4705     *
4706     * @see #putExtras
4707     * @see #removeExtra
4708     * @see #getStringArrayExtra(String)
4709     */
4710    public Intent putExtra(String name, String[] value) {
4711        if (mExtras == null) {
4712            mExtras = new Bundle();
4713        }
4714        mExtras.putStringArray(name, value);
4715        return this;
4716    }
4717
4718    /**
4719     * Add extended data to the intent.  The name must include a package
4720     * prefix, for example the app com.android.contacts would use names
4721     * like "com.android.contacts.ShowAll".
4722     *
4723     * @param name The name of the extra data, with package prefix.
4724     * @param value The CharSequence array data value.
4725     *
4726     * @return Returns the same Intent object, for chaining multiple calls
4727     * into a single statement.
4728     *
4729     * @see #putExtras
4730     * @see #removeExtra
4731     * @see #getCharSequenceArrayExtra(String)
4732     */
4733    public Intent putExtra(String name, CharSequence[] value) {
4734        if (mExtras == null) {
4735            mExtras = new Bundle();
4736        }
4737        mExtras.putCharSequenceArray(name, value);
4738        return this;
4739    }
4740
4741    /**
4742     * Add extended data to the intent.  The name must include a package
4743     * prefix, for example the app com.android.contacts would use names
4744     * like "com.android.contacts.ShowAll".
4745     *
4746     * @param name The name of the extra data, with package prefix.
4747     * @param value The Bundle data value.
4748     *
4749     * @return Returns the same Intent object, for chaining multiple calls
4750     * into a single statement.
4751     *
4752     * @see #putExtras
4753     * @see #removeExtra
4754     * @see #getBundleExtra(String)
4755     */
4756    public Intent putExtra(String name, Bundle value) {
4757        if (mExtras == null) {
4758            mExtras = new Bundle();
4759        }
4760        mExtras.putBundle(name, value);
4761        return this;
4762    }
4763
4764    /**
4765     * Add extended data to the intent.  The name must include a package
4766     * prefix, for example the app com.android.contacts would use names
4767     * like "com.android.contacts.ShowAll".
4768     *
4769     * @param name The name of the extra data, with package prefix.
4770     * @param value The IBinder data value.
4771     *
4772     * @return Returns the same Intent object, for chaining multiple calls
4773     * into a single statement.
4774     *
4775     * @see #putExtras
4776     * @see #removeExtra
4777     * @see #getIBinderExtra(String)
4778     *
4779     * @deprecated
4780     * @hide
4781     */
4782    @Deprecated
4783    public Intent putExtra(String name, IBinder value) {
4784        if (mExtras == null) {
4785            mExtras = new Bundle();
4786        }
4787        mExtras.putIBinder(name, value);
4788        return this;
4789    }
4790
4791    /**
4792     * Copy all extras in 'src' in to this intent.
4793     *
4794     * @param src Contains the extras to copy.
4795     *
4796     * @see #putExtra
4797     */
4798    public Intent putExtras(Intent src) {
4799        if (src.mExtras != null) {
4800            if (mExtras == null) {
4801                mExtras = new Bundle(src.mExtras);
4802            } else {
4803                mExtras.putAll(src.mExtras);
4804            }
4805        }
4806        return this;
4807    }
4808
4809    /**
4810     * Add a set of extended data to the intent.  The keys must include a package
4811     * prefix, for example the app com.android.contacts would use names
4812     * like "com.android.contacts.ShowAll".
4813     *
4814     * @param extras The Bundle of extras to add to this intent.
4815     *
4816     * @see #putExtra
4817     * @see #removeExtra
4818     */
4819    public Intent putExtras(Bundle extras) {
4820        if (mExtras == null) {
4821            mExtras = new Bundle();
4822        }
4823        mExtras.putAll(extras);
4824        return this;
4825    }
4826
4827    /**
4828     * Completely replace the extras in the Intent with the extras in the
4829     * given Intent.
4830     *
4831     * @param src The exact extras contained in this Intent are copied
4832     * into the target intent, replacing any that were previously there.
4833     */
4834    public Intent replaceExtras(Intent src) {
4835        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4836        return this;
4837    }
4838
4839    /**
4840     * Completely replace the extras in the Intent with the given Bundle of
4841     * extras.
4842     *
4843     * @param extras The new set of extras in the Intent, or null to erase
4844     * all extras.
4845     */
4846    public Intent replaceExtras(Bundle extras) {
4847        mExtras = extras != null ? new Bundle(extras) : null;
4848        return this;
4849    }
4850
4851    /**
4852     * Remove extended data from the intent.
4853     *
4854     * @see #putExtra
4855     */
4856    public void removeExtra(String name) {
4857        if (mExtras != null) {
4858            mExtras.remove(name);
4859            if (mExtras.size() == 0) {
4860                mExtras = null;
4861            }
4862        }
4863    }
4864
4865    /**
4866     * Set special flags controlling how this intent is handled.  Most values
4867     * here depend on the type of component being executed by the Intent,
4868     * specifically the FLAG_ACTIVITY_* flags are all for use with
4869     * {@link Context#startActivity Context.startActivity()} and the
4870     * FLAG_RECEIVER_* flags are all for use with
4871     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4872     *
4873     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4874     * Activities and Tasks</a> documentation for important information on how some of these options impact
4875     * the behavior of your application.
4876     *
4877     * @param flags The desired flags.
4878     *
4879     * @return Returns the same Intent object, for chaining multiple calls
4880     * into a single statement.
4881     *
4882     * @see #getFlags
4883     * @see #addFlags
4884     *
4885     * @see #FLAG_GRANT_READ_URI_PERMISSION
4886     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4887     * @see #FLAG_DEBUG_LOG_RESOLUTION
4888     * @see #FLAG_FROM_BACKGROUND
4889     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4890     * @see #FLAG_ACTIVITY_CLEAR_TASK
4891     * @see #FLAG_ACTIVITY_CLEAR_TOP
4892     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4893     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4894     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4895     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4896     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4897     * @see #FLAG_ACTIVITY_NEW_TASK
4898     * @see #FLAG_ACTIVITY_NO_ANIMATION
4899     * @see #FLAG_ACTIVITY_NO_HISTORY
4900     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4901     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4902     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4903     * @see #FLAG_ACTIVITY_REORDER_TO_FRONT
4904     * @see #FLAG_ACTIVITY_SINGLE_TOP
4905     * @see #FLAG_ACTIVITY_TASK_ON_HOME
4906     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4907     */
4908    public Intent setFlags(int flags) {
4909        mFlags = flags;
4910        return this;
4911    }
4912
4913    /**
4914     * Add additional flags to the intent (or with existing flags
4915     * value).
4916     *
4917     * @param flags The new flags to set.
4918     *
4919     * @return Returns the same Intent object, for chaining multiple calls
4920     * into a single statement.
4921     *
4922     * @see #setFlags
4923     */
4924    public Intent addFlags(int flags) {
4925        mFlags |= flags;
4926        return this;
4927    }
4928
4929    /**
4930     * (Usually optional) Set an explicit application package name that limits
4931     * the components this Intent will resolve to.  If left to the default
4932     * value of null, all components in all applications will considered.
4933     * If non-null, the Intent can only match the components in the given
4934     * application package.
4935     *
4936     * @param packageName The name of the application package to handle the
4937     * intent, or null to allow any application package.
4938     *
4939     * @return Returns the same Intent object, for chaining multiple calls
4940     * into a single statement.
4941     *
4942     * @see #getPackage
4943     * @see #resolveActivity
4944     */
4945    public Intent setPackage(String packageName) {
4946        mPackage = packageName;
4947        return this;
4948    }
4949
4950    /**
4951     * (Usually optional) Explicitly set the component to handle the intent.
4952     * If left with the default value of null, the system will determine the
4953     * appropriate class to use based on the other fields (action, data,
4954     * type, categories) in the Intent.  If this class is defined, the
4955     * specified class will always be used regardless of the other fields.  You
4956     * should only set this value when you know you absolutely want a specific
4957     * class to be used; otherwise it is better to let the system find the
4958     * appropriate class so that you will respect the installed applications
4959     * and user preferences.
4960     *
4961     * @param component The name of the application component to handle the
4962     * intent, or null to let the system find one for you.
4963     *
4964     * @return Returns the same Intent object, for chaining multiple calls
4965     * into a single statement.
4966     *
4967     * @see #setClass
4968     * @see #setClassName(Context, String)
4969     * @see #setClassName(String, String)
4970     * @see #getComponent
4971     * @see #resolveActivity
4972     */
4973    public Intent setComponent(ComponentName component) {
4974        mComponent = component;
4975        return this;
4976    }
4977
4978    /**
4979     * Convenience for calling {@link #setComponent} with an
4980     * explicit class name.
4981     *
4982     * @param packageContext A Context of the application package implementing
4983     * this class.
4984     * @param className The name of a class inside of the application package
4985     * that will be used as the component for this Intent.
4986     *
4987     * @return Returns the same Intent object, for chaining multiple calls
4988     * into a single statement.
4989     *
4990     * @see #setComponent
4991     * @see #setClass
4992     */
4993    public Intent setClassName(Context packageContext, String className) {
4994        mComponent = new ComponentName(packageContext, className);
4995        return this;
4996    }
4997
4998    /**
4999     * Convenience for calling {@link #setComponent} with an
5000     * explicit application package name and class name.
5001     *
5002     * @param packageName The name of the package implementing the desired
5003     * component.
5004     * @param className The name of a class inside of the application package
5005     * that will be used as the component for this Intent.
5006     *
5007     * @return Returns the same Intent object, for chaining multiple calls
5008     * into a single statement.
5009     *
5010     * @see #setComponent
5011     * @see #setClass
5012     */
5013    public Intent setClassName(String packageName, String className) {
5014        mComponent = new ComponentName(packageName, className);
5015        return this;
5016    }
5017
5018    /**
5019     * Convenience for calling {@link #setComponent(ComponentName)} with the
5020     * name returned by a {@link Class} object.
5021     *
5022     * @param packageContext A Context of the application package implementing
5023     * this class.
5024     * @param cls The class name to set, equivalent to
5025     *            <code>setClassName(context, cls.getName())</code>.
5026     *
5027     * @return Returns the same Intent object, for chaining multiple calls
5028     * into a single statement.
5029     *
5030     * @see #setComponent
5031     */
5032    public Intent setClass(Context packageContext, Class<?> cls) {
5033        mComponent = new ComponentName(packageContext, cls);
5034        return this;
5035    }
5036
5037    /**
5038     * Set the bounds of the sender of this intent, in screen coordinates.  This can be
5039     * used as a hint to the receiver for animations and the like.  Null means that there
5040     * is no source bounds.
5041     */
5042    public void setSourceBounds(Rect r) {
5043        if (r != null) {
5044            mSourceBounds = new Rect(r);
5045        } else {
5046            r = null;
5047        }
5048    }
5049
5050    /**
5051     * Use with {@link #fillIn} to allow the current action value to be
5052     * overwritten, even if it is already set.
5053     */
5054    public static final int FILL_IN_ACTION = 1<<0;
5055
5056    /**
5057     * Use with {@link #fillIn} to allow the current data or type value
5058     * overwritten, even if it is already set.
5059     */
5060    public static final int FILL_IN_DATA = 1<<1;
5061
5062    /**
5063     * Use with {@link #fillIn} to allow the current categories to be
5064     * overwritten, even if they are already set.
5065     */
5066    public static final int FILL_IN_CATEGORIES = 1<<2;
5067
5068    /**
5069     * Use with {@link #fillIn} to allow the current component value to be
5070     * overwritten, even if it is already set.
5071     */
5072    public static final int FILL_IN_COMPONENT = 1<<3;
5073
5074    /**
5075     * Use with {@link #fillIn} to allow the current package value to be
5076     * overwritten, even if it is already set.
5077     */
5078    public static final int FILL_IN_PACKAGE = 1<<4;
5079
5080    /**
5081     * Use with {@link #fillIn} to allow the current package value to be
5082     * overwritten, even if it is already set.
5083     */
5084    public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
5085
5086    /**
5087     * Copy the contents of <var>other</var> in to this object, but only
5088     * where fields are not defined by this object.  For purposes of a field
5089     * being defined, the following pieces of data in the Intent are
5090     * considered to be separate fields:
5091     *
5092     * <ul>
5093     * <li> action, as set by {@link #setAction}.
5094     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
5095     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
5096     * <li> categories, as set by {@link #addCategory}.
5097     * <li> package, as set by {@link #setPackage}.
5098     * <li> component, as set by {@link #setComponent(ComponentName)} or
5099     * related methods.
5100     * <li> source bounds, as set by {@link #setSourceBounds}
5101     * <li> each top-level name in the associated extras.
5102     * </ul>
5103     *
5104     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
5105     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
5106     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
5107     * corresponding field will not be replaced if it is already set.
5108     *
5109     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
5110     * specified.
5111     *
5112     * <p>For example, consider Intent A with {data="foo", categories="bar"}
5113     * and Intent B with {action="gotit", data-type="some/thing",
5114     * categories="one","two"}.
5115     *
5116     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
5117     * containing: {action="gotit", data-type="some/thing",
5118     * categories="bar"}.
5119     *
5120     * @param other Another Intent whose values are to be used to fill in
5121     * the current one.
5122     * @param flags Options to control which fields can be filled in.
5123     *
5124     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
5125     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
5126     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
5127     */
5128    public int fillIn(Intent other, int flags) {
5129        int changes = 0;
5130        if (other.mAction != null
5131                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
5132            mAction = other.mAction;
5133            changes |= FILL_IN_ACTION;
5134        }
5135        if ((other.mData != null || other.mType != null)
5136                && ((mData == null && mType == null)
5137                        || (flags&FILL_IN_DATA) != 0)) {
5138            mData = other.mData;
5139            mType = other.mType;
5140            changes |= FILL_IN_DATA;
5141        }
5142        if (other.mCategories != null
5143                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
5144            if (other.mCategories != null) {
5145                mCategories = new HashSet<String>(other.mCategories);
5146            }
5147            changes |= FILL_IN_CATEGORIES;
5148        }
5149        if (other.mPackage != null
5150                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
5151            mPackage = other.mPackage;
5152            changes |= FILL_IN_PACKAGE;
5153        }
5154        // Component is special: it can -only- be set if explicitly allowed,
5155        // since otherwise the sender could force the intent somewhere the
5156        // originator didn't intend.
5157        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
5158            mComponent = other.mComponent;
5159            changes |= FILL_IN_COMPONENT;
5160        }
5161        mFlags |= other.mFlags;
5162        if (other.mSourceBounds != null
5163                && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
5164            mSourceBounds = new Rect(other.mSourceBounds);
5165            changes |= FILL_IN_SOURCE_BOUNDS;
5166        }
5167        if (mExtras == null) {
5168            if (other.mExtras != null) {
5169                mExtras = new Bundle(other.mExtras);
5170            }
5171        } else if (other.mExtras != null) {
5172            try {
5173                Bundle newb = new Bundle(other.mExtras);
5174                newb.putAll(mExtras);
5175                mExtras = newb;
5176            } catch (RuntimeException e) {
5177                // Modifying the extras can cause us to unparcel the contents
5178                // of the bundle, and if we do this in the system process that
5179                // may fail.  We really should handle this (i.e., the Bundle
5180                // impl shouldn't be on top of a plain map), but for now just
5181                // ignore it and keep the original contents. :(
5182                Log.w("Intent", "Failure filling in extras", e);
5183            }
5184        }
5185        return changes;
5186    }
5187
5188    /**
5189     * Wrapper class holding an Intent and implementing comparisons on it for
5190     * the purpose of filtering.  The class implements its
5191     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
5192     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
5193     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
5194     * on the wrapped Intent.
5195     */
5196    public static final class FilterComparison {
5197        private final Intent mIntent;
5198        private final int mHashCode;
5199
5200        public FilterComparison(Intent intent) {
5201            mIntent = intent;
5202            mHashCode = intent.filterHashCode();
5203        }
5204
5205        /**
5206         * Return the Intent that this FilterComparison represents.
5207         * @return Returns the Intent held by the FilterComparison.  Do
5208         * not modify!
5209         */
5210        public Intent getIntent() {
5211            return mIntent;
5212        }
5213
5214        @Override
5215        public boolean equals(Object obj) {
5216            if (obj instanceof FilterComparison) {
5217                Intent other = ((FilterComparison)obj).mIntent;
5218                return mIntent.filterEquals(other);
5219            }
5220            return false;
5221        }
5222
5223        @Override
5224        public int hashCode() {
5225            return mHashCode;
5226        }
5227    }
5228
5229    /**
5230     * Determine if two intents are the same for the purposes of intent
5231     * resolution (filtering). That is, if their action, data, type,
5232     * class, and categories are the same.  This does <em>not</em> compare
5233     * any extra data included in the intents.
5234     *
5235     * @param other The other Intent to compare against.
5236     *
5237     * @return Returns true if action, data, type, class, and categories
5238     *         are the same.
5239     */
5240    public boolean filterEquals(Intent other) {
5241        if (other == null) {
5242            return false;
5243        }
5244        if (mAction != other.mAction) {
5245            if (mAction != null) {
5246                if (!mAction.equals(other.mAction)) {
5247                    return false;
5248                }
5249            } else {
5250                if (!other.mAction.equals(mAction)) {
5251                    return false;
5252                }
5253            }
5254        }
5255        if (mData != other.mData) {
5256            if (mData != null) {
5257                if (!mData.equals(other.mData)) {
5258                    return false;
5259                }
5260            } else {
5261                if (!other.mData.equals(mData)) {
5262                    return false;
5263                }
5264            }
5265        }
5266        if (mType != other.mType) {
5267            if (mType != null) {
5268                if (!mType.equals(other.mType)) {
5269                    return false;
5270                }
5271            } else {
5272                if (!other.mType.equals(mType)) {
5273                    return false;
5274                }
5275            }
5276        }
5277        if (mPackage != other.mPackage) {
5278            if (mPackage != null) {
5279                if (!mPackage.equals(other.mPackage)) {
5280                    return false;
5281                }
5282            } else {
5283                if (!other.mPackage.equals(mPackage)) {
5284                    return false;
5285                }
5286            }
5287        }
5288        if (mComponent != other.mComponent) {
5289            if (mComponent != null) {
5290                if (!mComponent.equals(other.mComponent)) {
5291                    return false;
5292                }
5293            } else {
5294                if (!other.mComponent.equals(mComponent)) {
5295                    return false;
5296                }
5297            }
5298        }
5299        if (mCategories != other.mCategories) {
5300            if (mCategories != null) {
5301                if (!mCategories.equals(other.mCategories)) {
5302                    return false;
5303                }
5304            } else {
5305                if (!other.mCategories.equals(mCategories)) {
5306                    return false;
5307                }
5308            }
5309        }
5310
5311        return true;
5312    }
5313
5314    /**
5315     * Generate hash code that matches semantics of filterEquals().
5316     *
5317     * @return Returns the hash value of the action, data, type, class, and
5318     *         categories.
5319     *
5320     * @see #filterEquals
5321     */
5322    public int filterHashCode() {
5323        int code = 0;
5324        if (mAction != null) {
5325            code += mAction.hashCode();
5326        }
5327        if (mData != null) {
5328            code += mData.hashCode();
5329        }
5330        if (mType != null) {
5331            code += mType.hashCode();
5332        }
5333        if (mPackage != null) {
5334            code += mPackage.hashCode();
5335        }
5336        if (mComponent != null) {
5337            code += mComponent.hashCode();
5338        }
5339        if (mCategories != null) {
5340            code += mCategories.hashCode();
5341        }
5342        return code;
5343    }
5344
5345    @Override
5346    public String toString() {
5347        StringBuilder   b = new StringBuilder(128);
5348
5349        b.append("Intent { ");
5350        toShortString(b, true, true);
5351        b.append(" }");
5352
5353        return b.toString();
5354    }
5355
5356    /** @hide */
5357    public String toShortString(boolean comp, boolean extras) {
5358        StringBuilder   b = new StringBuilder(128);
5359        toShortString(b, comp, extras);
5360        return b.toString();
5361    }
5362
5363    /** @hide */
5364    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
5365        boolean first = true;
5366        if (mAction != null) {
5367            b.append("act=").append(mAction);
5368            first = false;
5369        }
5370        if (mCategories != null) {
5371            if (!first) {
5372                b.append(' ');
5373            }
5374            first = false;
5375            b.append("cat=[");
5376            Iterator<String> i = mCategories.iterator();
5377            boolean didone = false;
5378            while (i.hasNext()) {
5379                if (didone) b.append(",");
5380                didone = true;
5381                b.append(i.next());
5382            }
5383            b.append("]");
5384        }
5385        if (mData != null) {
5386            if (!first) {
5387                b.append(' ');
5388            }
5389            first = false;
5390            b.append("dat=");
5391            String scheme = mData.getScheme();
5392            if (scheme != null) {
5393                if (scheme.equalsIgnoreCase("tel")) {
5394                    b.append("tel:xxx-xxx-xxxx");
5395                } else if (scheme.equalsIgnoreCase("smsto")) {
5396                    b.append("smsto:xxx-xxx-xxxx");
5397                } else {
5398                    b.append(mData);
5399                }
5400            } else {
5401                b.append(mData);
5402            }
5403        }
5404        if (mType != null) {
5405            if (!first) {
5406                b.append(' ');
5407            }
5408            first = false;
5409            b.append("typ=").append(mType);
5410        }
5411        if (mFlags != 0) {
5412            if (!first) {
5413                b.append(' ');
5414            }
5415            first = false;
5416            b.append("flg=0x").append(Integer.toHexString(mFlags));
5417        }
5418        if (mPackage != null) {
5419            if (!first) {
5420                b.append(' ');
5421            }
5422            first = false;
5423            b.append("pkg=").append(mPackage);
5424        }
5425        if (comp && mComponent != null) {
5426            if (!first) {
5427                b.append(' ');
5428            }
5429            first = false;
5430            b.append("cmp=").append(mComponent.flattenToShortString());
5431        }
5432        if (mSourceBounds != null) {
5433            if (!first) {
5434                b.append(' ');
5435            }
5436            first = false;
5437            b.append("bnds=").append(mSourceBounds.toShortString());
5438        }
5439        if (extras && mExtras != null) {
5440            if (!first) {
5441                b.append(' ');
5442            }
5443            first = false;
5444            b.append("(has extras)");
5445        }
5446    }
5447
5448    /**
5449     * Call {@link #toUri} with 0 flags.
5450     * @deprecated Use {@link #toUri} instead.
5451     */
5452    @Deprecated
5453    public String toURI() {
5454        return toUri(0);
5455    }
5456
5457    /**
5458     * Convert this Intent into a String holding a URI representation of it.
5459     * The returned URI string has been properly URI encoded, so it can be
5460     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
5461     * Intent's data as the base URI, with an additional fragment describing
5462     * the action, categories, type, flags, package, component, and extras.
5463     *
5464     * <p>You can convert the returned string back to an Intent with
5465     * {@link #getIntent}.
5466     *
5467     * @param flags Additional operating flags.  Either 0 or
5468     * {@link #URI_INTENT_SCHEME}.
5469     *
5470     * @return Returns a URI encoding URI string describing the entire contents
5471     * of the Intent.
5472     */
5473    public String toUri(int flags) {
5474        StringBuilder uri = new StringBuilder(128);
5475        String scheme = null;
5476        if (mData != null) {
5477            String data = mData.toString();
5478            if ((flags&URI_INTENT_SCHEME) != 0) {
5479                final int N = data.length();
5480                for (int i=0; i<N; i++) {
5481                    char c = data.charAt(i);
5482                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
5483                            || c == '.' || c == '-') {
5484                        continue;
5485                    }
5486                    if (c == ':' && i > 0) {
5487                        // Valid scheme.
5488                        scheme = data.substring(0, i);
5489                        uri.append("intent:");
5490                        data = data.substring(i+1);
5491                        break;
5492                    }
5493
5494                    // No scheme.
5495                    break;
5496                }
5497            }
5498            uri.append(data);
5499
5500        } else if ((flags&URI_INTENT_SCHEME) != 0) {
5501            uri.append("intent:");
5502        }
5503
5504        uri.append("#Intent;");
5505
5506        if (scheme != null) {
5507            uri.append("scheme=").append(scheme).append(';');
5508        }
5509        if (mAction != null) {
5510            uri.append("action=").append(Uri.encode(mAction)).append(';');
5511        }
5512        if (mCategories != null) {
5513            for (String category : mCategories) {
5514                uri.append("category=").append(Uri.encode(category)).append(';');
5515            }
5516        }
5517        if (mType != null) {
5518            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
5519        }
5520        if (mFlags != 0) {
5521            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
5522        }
5523        if (mPackage != null) {
5524            uri.append("package=").append(Uri.encode(mPackage)).append(';');
5525        }
5526        if (mComponent != null) {
5527            uri.append("component=").append(Uri.encode(
5528                    mComponent.flattenToShortString(), "/")).append(';');
5529        }
5530        if (mSourceBounds != null) {
5531            uri.append("sourceBounds=")
5532                    .append(Uri.encode(mSourceBounds.flattenToString()))
5533                    .append(';');
5534        }
5535        if (mExtras != null) {
5536            for (String key : mExtras.keySet()) {
5537                final Object value = mExtras.get(key);
5538                char entryType =
5539                        value instanceof String    ? 'S' :
5540                        value instanceof Boolean   ? 'B' :
5541                        value instanceof Byte      ? 'b' :
5542                        value instanceof Character ? 'c' :
5543                        value instanceof Double    ? 'd' :
5544                        value instanceof Float     ? 'f' :
5545                        value instanceof Integer   ? 'i' :
5546                        value instanceof Long      ? 'l' :
5547                        value instanceof Short     ? 's' :
5548                        '\0';
5549
5550                if (entryType != '\0') {
5551                    uri.append(entryType);
5552                    uri.append('.');
5553                    uri.append(Uri.encode(key));
5554                    uri.append('=');
5555                    uri.append(Uri.encode(value.toString()));
5556                    uri.append(';');
5557                }
5558            }
5559        }
5560
5561        uri.append("end");
5562
5563        return uri.toString();
5564    }
5565
5566    public int describeContents() {
5567        return (mExtras != null) ? mExtras.describeContents() : 0;
5568    }
5569
5570    public void writeToParcel(Parcel out, int flags) {
5571        out.writeString(mAction);
5572        Uri.writeToParcel(out, mData);
5573        out.writeString(mType);
5574        out.writeInt(mFlags);
5575        out.writeString(mPackage);
5576        ComponentName.writeToParcel(mComponent, out);
5577
5578        if (mSourceBounds != null) {
5579            out.writeInt(1);
5580            mSourceBounds.writeToParcel(out, flags);
5581        } else {
5582            out.writeInt(0);
5583        }
5584
5585        if (mCategories != null) {
5586            out.writeInt(mCategories.size());
5587            for (String category : mCategories) {
5588                out.writeString(category);
5589            }
5590        } else {
5591            out.writeInt(0);
5592        }
5593
5594        out.writeBundle(mExtras);
5595    }
5596
5597    public static final Parcelable.Creator<Intent> CREATOR
5598            = new Parcelable.Creator<Intent>() {
5599        public Intent createFromParcel(Parcel in) {
5600            return new Intent(in);
5601        }
5602        public Intent[] newArray(int size) {
5603            return new Intent[size];
5604        }
5605    };
5606
5607    /** @hide */
5608    protected Intent(Parcel in) {
5609        readFromParcel(in);
5610    }
5611
5612    public void readFromParcel(Parcel in) {
5613        mAction = in.readString();
5614        mData = Uri.CREATOR.createFromParcel(in);
5615        mType = in.readString();
5616        mFlags = in.readInt();
5617        mPackage = in.readString();
5618        mComponent = ComponentName.readFromParcel(in);
5619
5620        if (in.readInt() != 0) {
5621            mSourceBounds = Rect.CREATOR.createFromParcel(in);
5622        }
5623
5624        int N = in.readInt();
5625        if (N > 0) {
5626            mCategories = new HashSet<String>();
5627            int i;
5628            for (i=0; i<N; i++) {
5629                mCategories.add(in.readString());
5630            }
5631        } else {
5632            mCategories = null;
5633        }
5634
5635        mExtras = in.readBundle();
5636    }
5637
5638    /**
5639     * Parses the "intent" element (and its children) from XML and instantiates
5640     * an Intent object.  The given XML parser should be located at the tag
5641     * where parsing should start (often named "intent"), from which the
5642     * basic action, data, type, and package and class name will be
5643     * retrieved.  The function will then parse in to any child elements,
5644     * looking for <category android:name="xxx"> tags to add categories and
5645     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5646     * to the intent.
5647     *
5648     * @param resources The Resources to use when inflating resources.
5649     * @param parser The XML parser pointing at an "intent" tag.
5650     * @param attrs The AttributeSet interface for retrieving extended
5651     * attribute data at the current <var>parser</var> location.
5652     * @return An Intent object matching the XML data.
5653     * @throws XmlPullParserException If there was an XML parsing error.
5654     * @throws IOException If there was an I/O error.
5655     */
5656    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5657            throws XmlPullParserException, IOException {
5658        Intent intent = new Intent();
5659
5660        TypedArray sa = resources.obtainAttributes(attrs,
5661                com.android.internal.R.styleable.Intent);
5662
5663        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5664
5665        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5666        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5667        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5668
5669        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5670        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5671        if (packageName != null && className != null) {
5672            intent.setComponent(new ComponentName(packageName, className));
5673        }
5674
5675        sa.recycle();
5676
5677        int outerDepth = parser.getDepth();
5678        int type;
5679        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5680               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5681            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5682                continue;
5683            }
5684
5685            String nodeName = parser.getName();
5686            if (nodeName.equals("category")) {
5687                sa = resources.obtainAttributes(attrs,
5688                        com.android.internal.R.styleable.IntentCategory);
5689                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5690                sa.recycle();
5691
5692                if (cat != null) {
5693                    intent.addCategory(cat);
5694                }
5695                XmlUtils.skipCurrentTag(parser);
5696
5697            } else if (nodeName.equals("extra")) {
5698                if (intent.mExtras == null) {
5699                    intent.mExtras = new Bundle();
5700                }
5701                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5702                XmlUtils.skipCurrentTag(parser);
5703
5704            } else {
5705                XmlUtils.skipCurrentTag(parser);
5706            }
5707        }
5708
5709        return intent;
5710    }
5711}
5712