Intent.java revision 362d5b9b6429a2766f5b980d2010262135788ad8
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.net.Uri;
30import android.os.Bundle;
31import android.os.IBinder;
32import android.os.Parcel;
33import android.os.Parcelable;
34import android.util.AttributeSet;
35import android.util.Log;
36import com.android.internal.util.XmlUtils;
37
38import java.io.IOException;
39import java.io.Serializable;
40import java.net.URISyntaxException;
41import java.util.ArrayList;
42import java.util.HashSet;
43import java.util.Iterator;
44import java.util.Set;
45
46/**
47 * An intent is an abstract description of an operation to be performed.  It
48 * can be used with {@link Context#startActivity(Intent) startActivity} to
49 * launch an {@link android.app.Activity},
50 * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
51 * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
52 * and {@link android.content.Context#startService} or
53 * {@link android.content.Context#bindService} to communicate with a
54 * background {@link android.app.Service}.
55 *
56 * <p>An Intent provides a facility for performing late runtime binding between
57 * the code in different applications.  Its most significant use is in the
58 * launching of activities, where it can be thought of as the glue between
59 * activities. It is
60 * basically a passive data structure holding an abstract description of an
61 * action to be performed. The primary pieces of information in an intent
62 * are:</p>
63 *
64 * <ul>
65 *   <li> <p><b>action</b> -- The general action to be performed, such as
66 *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
67 *     etc.</p>
68 *   </li>
69 *   <li> <p><b>data</b> -- The data to operate on, such as a person record
70 *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
71 *   </li>
72 * </ul>
73 *
74 *
75 * <p>Some examples of action/data pairs are:</p>
76 *
77 * <ul>
78 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
79 *     information about the person whose identifier is "1".</p>
80 *   </li>
81 *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
82 *     the phone dialer with the person filled in.</p>
83 *   </li>
84 *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
85 *     the phone dialer with the given number filled in.  Note how the
86 *     VIEW action does what what is considered the most reasonable thing for
87 *     a particular URI.</p>
88 *   </li>
89 *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
90 *     the phone dialer with the given number filled in.</p>
91 *   </li>
92 *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
93 *     information about the person whose identifier is "1".</p>
94 *   </li>
95 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
96 *     a list of people, which the user can browse through.  This example is a
97 *     typical top-level entry into the Contacts application, showing you the
98 *     list of people. Selecting a particular person to view would result in a
99 *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
100 *     being used to start an activity to display that person.</p>
101 *   </li>
102 * </ul>
103 *
104 * <p>In addition to these primary attributes, there are a number of secondary
105 * attributes that you can also include with an intent:</p>
106 *
107 * <ul>
108 *     <li> <p><b>category</b> -- Gives additional information about the action
109 *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
110 *         appear in the Launcher as a top-level application, while
111 *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
112 *         of alternative actions the user can perform on a piece of data.</p>
113 *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
114 *         intent data.  Normally the type is inferred from the data itself.
115 *         By setting this attribute, you disable that evaluation and force
116 *         an explicit type.</p>
117 *     <li> <p><b>component</b> -- Specifies an explicit name of a component
118 *         class to use for the intent.  Normally this is determined by looking
119 *         at the other information in the intent (the action, data/type, and
120 *         categories) and matching that with a component that can handle it.
121 *         If this attribute is set then none of the evaluation is performed,
122 *         and this component is used exactly as is.  By specifying this attribute,
123 *         all of the other Intent attributes become optional.</p>
124 *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
125 *         This can be used to provide extended information to the component.
126 *         For example, if we have a action to send an e-mail message, we could
127 *         also include extra pieces of data here to supply a subject, body,
128 *         etc.</p>
129 * </ul>
130 *
131 * <p>Here are some examples of other operations you can specify as intents
132 * using these additional parameters:</p>
133 *
134 * <ul>
135 *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
136 *     Launch the home screen.</p>
137 *   </li>
138 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
139 *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
140 *     vnd.android.cursor.item/phone}</i></b>
141 *     -- Display the list of people's phone numbers, allowing the user to
142 *     browse through them and pick one and return it to the parent activity.</p>
143 *   </li>
144 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
145 *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
146 *     -- Display all pickers for data that can be opened with
147 *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
148 *     allowing the user to pick one of them and then some data inside of it
149 *     and returning the resulting URI to the caller.  This can be used,
150 *     for example, in an e-mail application to allow the user to pick some
151 *     data to include as an attachment.</p>
152 *   </li>
153 * </ul>
154 *
155 * <p>There are a variety of standard Intent action and category constants
156 * defined in the Intent class, but applications can also define their own.
157 * These strings use java style scoping, to ensure they are unique -- for
158 * example, the standard {@link #ACTION_VIEW} is called
159 * "android.intent.action.VIEW".</p>
160 *
161 * <p>Put together, the set of actions, data types, categories, and extra data
162 * defines a language for the system allowing for the expression of phrases
163 * such as "call john smith's cell".  As applications are added to the system,
164 * they can extend this language by adding new actions, types, and categories, or
165 * they can modify the behavior of existing phrases by supplying their own
166 * activities that handle them.</p>
167 *
168 * <a name="IntentResolution"></a>
169 * <h3>Intent Resolution</h3>
170 *
171 * <p>There are two primary forms of intents you will use.
172 *
173 * <ul>
174 *     <li> <p><b>Explicit Intents</b> have specified a component (via
175 *     {@link #setComponent} or {@link #setClass}), which provides the exact
176 *     class to be run.  Often these will not include any other information,
177 *     simply being a way for an application to launch various internal
178 *     activities it has as the user interacts with the application.
179 *
180 *     <li> <p><b>Implicit Intents</b> have not specified a component;
181 *     instead, they must include enough information for the system to
182 *     determine which of the available components is best to run for that
183 *     intent.
184 * </ul>
185 *
186 * <p>When using implicit intents, given such an arbitrary intent we need to
187 * know what to do with it. This is handled by the process of <em>Intent
188 * resolution</em>, which maps an Intent to an {@link android.app.Activity},
189 * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
190 * more activities/receivers) that can handle it.</p>
191 *
192 * <p>The intent resolution mechanism basically revolves around matching an
193 * Intent against all of the &lt;intent-filter&gt; descriptions in the
194 * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
195 * objects explicitly registered with {@link Context#registerReceiver}.)  More
196 * details on this can be found in the documentation on the {@link
197 * IntentFilter} class.</p>
198 *
199 * <p>There are three pieces of information in the Intent that are used for
200 * resolution: the action, type, and category.  Using this information, a query
201 * is done on the {@link PackageManager} for a component that can handle the
202 * intent. The appropriate component is determined based on the intent
203 * information supplied in the <code>AndroidManifest.xml</code> file as
204 * follows:</p>
205 *
206 * <ul>
207 *     <li> <p>The <b>action</b>, if given, must be listed by the component as
208 *         one it handles.</p>
209 *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
210 *         already supplied in the Intent.  Like the action, if a type is
211 *         included in the intent (either explicitly or implicitly in its
212 *         data), then this must be listed by the component as one it handles.</p>
213 *     <li> For data that is not a <code>content:</code> URI and where no explicit
214 *         type is included in the Intent, instead the <b>scheme</b> of the
215 *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
216 *         considered. Again like the action, if we are matching a scheme it
217 *         must be listed by the component as one it can handle.
218 *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
219 *         by the activity as categories it handles.  That is, if you include
220 *         the categories {@link #CATEGORY_LAUNCHER} and
221 *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
222 *         with an intent that lists <em>both</em> of those categories.
223 *         Activities will very often need to support the
224 *         {@link #CATEGORY_DEFAULT} so that they can be found by
225 *         {@link Context#startActivity Context.startActivity()}.</p>
226 * </ul>
227 *
228 * <p>For example, consider the Note Pad sample application that
229 * allows user to browse through a list of notes data and view details about
230 * individual items.  Text in italics indicate places were you would replace a
231 * name with one specific to your own package.</p>
232 *
233 * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
234 *       package="<i>com.android.notepad</i>"&gt;
235 *     &lt;application android:icon="@drawable/app_notes"
236 *             android:label="@string/app_name"&gt;
237 *
238 *         &lt;provider class=".NotePadProvider"
239 *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
240 *
241 *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
242 *             &lt;intent-filter&gt;
243 *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
244 *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
245 *             &lt;/intent-filter&gt;
246 *             &lt;intent-filter&gt;
247 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
248 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
249 *                 &lt;action android:name="android.intent.action.PICK" /&gt;
250 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
251 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
252 *             &lt;/intent-filter&gt;
253 *             &lt;intent-filter&gt;
254 *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
255 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
256 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
257 *             &lt;/intent-filter&gt;
258 *         &lt;/activity&gt;
259 *
260 *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
261 *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
262 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
263 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
264 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
265 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
266 *             &lt;/intent-filter&gt;
267 *
268 *             &lt;intent-filter&gt;
269 *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
270 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
271 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
272 *             &lt;/intent-filter&gt;
273 *
274 *         &lt;/activity&gt;
275 *
276 *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
277 *                 android:theme="@android:style/Theme.Dialog"&gt;
278 *             &lt;intent-filter android:label="@string/resolve_title"&gt;
279 *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
280 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
281 *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
282 *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
283 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
284 *             &lt;/intent-filter&gt;
285 *         &lt;/activity&gt;
286 *
287 *     &lt;/application&gt;
288 * &lt;/manifest&gt;</pre>
289 *
290 * <p>The first activity,
291 * <code>com.android.notepad.NotesList</code>, serves as our main
292 * entry into the app.  It can do three things as described by its three intent
293 * templates:
294 * <ol>
295 * <li><pre>
296 * &lt;intent-filter&gt;
297 *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
298 *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
299 * &lt;/intent-filter&gt;</pre>
300 * <p>This provides a top-level entry into the NotePad application: the standard
301 * MAIN action is a main entry point (not requiring any other information in
302 * the Intent), and the LAUNCHER category says that this entry point should be
303 * listed in the application launcher.</p>
304 * <li><pre>
305 * &lt;intent-filter&gt;
306 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
307 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
308 *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
309 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
310 *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
311 * &lt;/intent-filter&gt;</pre>
312 * <p>This declares the things that the activity can do on a directory of
313 * notes.  The type being supported is given with the &lt;type&gt; tag, where
314 * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
315 * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
316 * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
317 * The activity allows the user to view or edit the directory of data (via
318 * the VIEW and EDIT actions), or to pick a particular note and return it
319 * to the caller (via the PICK action).  Note also the DEFAULT category
320 * supplied here: this is <em>required</em> for the
321 * {@link Context#startActivity Context.startActivity} method to resolve your
322 * activity when its component name is not explicitly specified.</p>
323 * <li><pre>
324 * &lt;intent-filter&gt;
325 *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
326 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
327 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
328 * &lt;/intent-filter&gt;</pre>
329 * <p>This filter describes the ability return to the caller a note selected by
330 * the user without needing to know where it came from.  The data type
331 * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
332 * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
333 * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
334 * The GET_CONTENT action is similar to the PICK action, where the activity
335 * will return to its caller a piece of data selected by the user.  Here,
336 * however, the caller specifies the type of data they desire instead of
337 * the type of data the user will be picking from.</p>
338 * </ol>
339 *
340 * <p>Given these capabilities, the following intents will resolve to the
341 * NotesList activity:</p>
342 *
343 * <ul>
344 *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
345 *         activities that can be used as top-level entry points into an
346 *         application.</p>
347 *     <li> <p><b>{ action=android.app.action.MAIN,
348 *         category=android.app.category.LAUNCHER }</b> is the actual intent
349 *         used by the Launcher to populate its top-level list.</p>
350 *     <li> <p><b>{ action=android.intent.action.VIEW
351 *          data=content://com.google.provider.NotePad/notes }</b>
352 *         displays a list of all the notes under
353 *         "content://com.google.provider.NotePad/notes", which
354 *         the user can browse through and see the details on.</p>
355 *     <li> <p><b>{ action=android.app.action.PICK
356 *          data=content://com.google.provider.NotePad/notes }</b>
357 *         provides a list of the notes under
358 *         "content://com.google.provider.NotePad/notes", from which
359 *         the user can pick a note whose data URL is returned back to the caller.</p>
360 *     <li> <p><b>{ action=android.app.action.GET_CONTENT
361 *          type=vnd.android.cursor.item/vnd.google.note }</b>
362 *         is similar to the pick action, but allows the caller to specify the
363 *         kind of data they want back so that the system can find the appropriate
364 *         activity to pick something of that data type.</p>
365 * </ul>
366 *
367 * <p>The second activity,
368 * <code>com.android.notepad.NoteEditor</code>, shows the user a single
369 * note entry and allows them to edit it.  It can do two things as described
370 * by its two intent templates:
371 * <ol>
372 * <li><pre>
373 * &lt;intent-filter android:label="@string/resolve_edit"&gt;
374 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
375 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
376 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
377 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
378 * &lt;/intent-filter&gt;</pre>
379 * <p>The first, primary, purpose of this activity is to let the user interact
380 * with a single note, as decribed by the MIME type
381 * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
382 * either VIEW a note or allow the user to EDIT it.  Again we support the
383 * DEFAULT category to allow the activity to be launched without explicitly
384 * specifying its component.</p>
385 * <li><pre>
386 * &lt;intent-filter&gt;
387 *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
388 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
389 *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
390 * &lt;/intent-filter&gt;</pre>
391 * <p>The secondary use of this activity is to insert a new note entry into
392 * an existing directory of notes.  This is used when the user creates a new
393 * note: the INSERT action is executed on the directory of notes, causing
394 * this activity to run and have the user create the new note data which
395 * it then adds to the content provider.</p>
396 * </ol>
397 *
398 * <p>Given these capabilities, the following intents will resolve to the
399 * NoteEditor activity:</p>
400 *
401 * <ul>
402 *     <li> <p><b>{ action=android.intent.action.VIEW
403 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
404 *         shows the user the content of note <var>{ID}</var>.</p>
405 *     <li> <p><b>{ action=android.app.action.EDIT
406 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
407 *         allows the user to edit the content of note <var>{ID}</var>.</p>
408 *     <li> <p><b>{ action=android.app.action.INSERT
409 *          data=content://com.google.provider.NotePad/notes }</b>
410 *         creates a new, empty note in the notes list at
411 *         "content://com.google.provider.NotePad/notes"
412 *         and allows the user to edit it.  If they keep their changes, the URI
413 *         of the newly created note is returned to the caller.</p>
414 * </ul>
415 *
416 * <p>The last activity,
417 * <code>com.android.notepad.TitleEditor</code>, allows the user to
418 * edit the title of a note.  This could be implemented as a class that the
419 * application directly invokes (by explicitly setting its component in
420 * the Intent), but here we show a way you can publish alternative
421 * operations on existing data:</p>
422 *
423 * <pre>
424 * &lt;intent-filter android:label="@string/resolve_title"&gt;
425 *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
426 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
427 *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
428 *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
429 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
430 * &lt;/intent-filter&gt;</pre>
431 *
432 * <p>In the single intent template here, we
433 * have created our own private action called
434 * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
435 * edit the title of a note.  It must be invoked on a specific note
436 * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
437 * view and edit actions, but here displays and edits the title contained
438 * in the note data.
439 *
440 * <p>In addition to supporting the default category as usual, our title editor
441 * also supports two other standard categories: ALTERNATIVE and
442 * SELECTED_ALTERNATIVE.  Implementing
443 * these categories allows others to find the special action it provides
444 * without directly knowing about it, through the
445 * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
446 * more often to build dynamic menu items with
447 * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
448 * template here was also supply an explicit name for the template
449 * (via <code>android:label="@string/resolve_title"</code>) to better control
450 * what the user sees when presented with this activity as an alternative
451 * action to the data they are viewing.
452 *
453 * <p>Given these capabilities, the following intent will resolve to the
454 * TitleEditor activity:</p>
455 *
456 * <ul>
457 *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
458 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
459 *         displays and allows the user to edit the title associated
460 *         with note <var>{ID}</var>.</p>
461 * </ul>
462 *
463 * <h3>Standard Activity Actions</h3>
464 *
465 * <p>These are the current standard actions that Intent defines for launching
466 * activities (usually through {@link Context#startActivity}.  The most
467 * important, and by far most frequently used, are {@link #ACTION_MAIN} and
468 * {@link #ACTION_EDIT}.
469 *
470 * <ul>
471 *     <li> {@link #ACTION_MAIN}
472 *     <li> {@link #ACTION_VIEW}
473 *     <li> {@link #ACTION_ATTACH_DATA}
474 *     <li> {@link #ACTION_EDIT}
475 *     <li> {@link #ACTION_PICK}
476 *     <li> {@link #ACTION_CHOOSER}
477 *     <li> {@link #ACTION_GET_CONTENT}
478 *     <li> {@link #ACTION_DIAL}
479 *     <li> {@link #ACTION_CALL}
480 *     <li> {@link #ACTION_SEND}
481 *     <li> {@link #ACTION_SENDTO}
482 *     <li> {@link #ACTION_ANSWER}
483 *     <li> {@link #ACTION_INSERT}
484 *     <li> {@link #ACTION_DELETE}
485 *     <li> {@link #ACTION_RUN}
486 *     <li> {@link #ACTION_SYNC}
487 *     <li> {@link #ACTION_PICK_ACTIVITY}
488 *     <li> {@link #ACTION_SEARCH}
489 *     <li> {@link #ACTION_WEB_SEARCH}
490 *     <li> {@link #ACTION_FACTORY_TEST}
491 * </ul>
492 *
493 * <h3>Standard Broadcast Actions</h3>
494 *
495 * <p>These are the current standard actions that Intent defines for receiving
496 * broadcasts (usually through {@link Context#registerReceiver} or a
497 * &lt;receiver&gt; tag in a manifest).
498 *
499 * <ul>
500 *     <li> {@link #ACTION_TIME_TICK}
501 *     <li> {@link #ACTION_TIME_CHANGED}
502 *     <li> {@link #ACTION_TIMEZONE_CHANGED}
503 *     <li> {@link #ACTION_BOOT_COMPLETED}
504 *     <li> {@link #ACTION_PACKAGE_ADDED}
505 *     <li> {@link #ACTION_PACKAGE_CHANGED}
506 *     <li> {@link #ACTION_PACKAGE_REMOVED}
507 *     <li> {@link #ACTION_PACKAGE_RESTARTED}
508 *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
509 *     <li> {@link #ACTION_UID_REMOVED}
510 *     <li> {@link #ACTION_BATTERY_CHANGED}
511 *     <li> {@link #ACTION_POWER_CONNECTED}
512 *     <li> {@link #ACTION_POWER_DISCONNECTED}
513 *     <li> {@link #ACTION_SHUTDOWN}
514 * </ul>
515 *
516 * <h3>Standard Categories</h3>
517 *
518 * <p>These are the current standard categories that can be used to further
519 * clarify an Intent via {@link #addCategory}.
520 *
521 * <ul>
522 *     <li> {@link #CATEGORY_DEFAULT}
523 *     <li> {@link #CATEGORY_BROWSABLE}
524 *     <li> {@link #CATEGORY_TAB}
525 *     <li> {@link #CATEGORY_ALTERNATIVE}
526 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
527 *     <li> {@link #CATEGORY_LAUNCHER}
528 *     <li> {@link #CATEGORY_INFO}
529 *     <li> {@link #CATEGORY_HOME}
530 *     <li> {@link #CATEGORY_PREFERENCE}
531 *     <li> {@link #CATEGORY_TEST}
532 *     <li> {@link #CATEGORY_CAR_DOCK}
533 *     <li> {@link #CATEGORY_DESK_DOCK}
534 * </ul>
535 *
536 * <h3>Standard Extra Data</h3>
537 *
538 * <p>These are the current standard fields that can be used as extra data via
539 * {@link #putExtra}.
540 *
541 * <ul>
542 *     <li> {@link #EXTRA_TEMPLATE}
543 *     <li> {@link #EXTRA_INTENT}
544 *     <li> {@link #EXTRA_STREAM}
545 *     <li> {@link #EXTRA_TEXT}
546 * </ul>
547 *
548 * <h3>Flags</h3>
549 *
550 * <p>These are the possible flags that can be used in the Intent via
551 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
552 * of all possible flags.
553 */
554public class Intent implements Parcelable {
555    // ---------------------------------------------------------------------
556    // ---------------------------------------------------------------------
557    // Standard intent activity actions (see action variable).
558
559    /**
560     *  Activity Action: Start as a main entry point, does not expect to
561     *  receive data.
562     *  <p>Input: nothing
563     *  <p>Output: nothing
564     */
565    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
566    public static final String ACTION_MAIN = "android.intent.action.MAIN";
567
568    /**
569     * Activity Action: Display the data to the user.  This is the most common
570     * action performed on data -- it is the generic action you can use on
571     * a piece of data to get the most reasonable thing to occur.  For example,
572     * when used on a contacts entry it will view the entry; when used on a
573     * mailto: URI it will bring up a compose window filled with the information
574     * supplied by the URI; when used with a tel: URI it will invoke the
575     * dialer.
576     * <p>Input: {@link #getData} is URI from which to retrieve data.
577     * <p>Output: nothing.
578     */
579    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
580    public static final String ACTION_VIEW = "android.intent.action.VIEW";
581
582    /**
583     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
584     * performed on a piece of data.
585     */
586    public static final String ACTION_DEFAULT = ACTION_VIEW;
587
588    /**
589     * Used to indicate that some piece of data should be attached to some other
590     * place.  For example, image data could be attached to a contact.  It is up
591     * to the recipient to decide where the data should be attached; the intent
592     * does not specify the ultimate destination.
593     * <p>Input: {@link #getData} is URI of data to be attached.
594     * <p>Output: nothing.
595     */
596    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
597    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
598
599    /**
600     * Activity Action: Provide explicit editable access to the given data.
601     * <p>Input: {@link #getData} is URI of data to be edited.
602     * <p>Output: nothing.
603     */
604    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
605    public static final String ACTION_EDIT = "android.intent.action.EDIT";
606
607    /**
608     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
609     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
610     * The extras can contain type specific data to pass through to the editing/creating
611     * activity.
612     * <p>Output: The URI of the item that was picked.  This must be a content:
613     * URI so that any receiver can access it.
614     */
615    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
616    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
617
618    /**
619     * Activity Action: Pick an item from the data, returning what was selected.
620     * <p>Input: {@link #getData} is URI containing a directory of data
621     * (vnd.android.cursor.dir/*) from which to pick an item.
622     * <p>Output: The URI of the item that was picked.
623     */
624    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
625    public static final String ACTION_PICK = "android.intent.action.PICK";
626
627    /**
628     * Activity Action: Creates a shortcut.
629     * <p>Input: Nothing.</p>
630     * <p>Output: An Intent representing the shortcut. The intent must contain three
631     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
632     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
633     * (value: ShortcutIconResource).</p>
634     *
635     * @see #EXTRA_SHORTCUT_INTENT
636     * @see #EXTRA_SHORTCUT_NAME
637     * @see #EXTRA_SHORTCUT_ICON
638     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
639     * @see android.content.Intent.ShortcutIconResource
640     */
641    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
642    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
643
644    /**
645     * The name of the extra used to define the Intent of a shortcut.
646     *
647     * @see #ACTION_CREATE_SHORTCUT
648     */
649    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
650    /**
651     * The name of the extra used to define the name of a shortcut.
652     *
653     * @see #ACTION_CREATE_SHORTCUT
654     */
655    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
656    /**
657     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
658     *
659     * @see #ACTION_CREATE_SHORTCUT
660     */
661    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
662    /**
663     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
664     *
665     * @see #ACTION_CREATE_SHORTCUT
666     * @see android.content.Intent.ShortcutIconResource
667     */
668    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
669            "android.intent.extra.shortcut.ICON_RESOURCE";
670
671    /**
672     * Represents a shortcut/live folder icon resource.
673     *
674     * @see Intent#ACTION_CREATE_SHORTCUT
675     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
676     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
677     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
678     */
679    public static class ShortcutIconResource implements Parcelable {
680        /**
681         * The package name of the application containing the icon.
682         */
683        public String packageName;
684
685        /**
686         * The resource name of the icon, including package, name and type.
687         */
688        public String resourceName;
689
690        /**
691         * Creates a new ShortcutIconResource for the specified context and resource
692         * identifier.
693         *
694         * @param context The context of the application.
695         * @param resourceId The resource idenfitier for the icon.
696         * @return A new ShortcutIconResource with the specified's context package name
697         *         and icon resource idenfitier.
698         */
699        public static ShortcutIconResource fromContext(Context context, int resourceId) {
700            ShortcutIconResource icon = new ShortcutIconResource();
701            icon.packageName = context.getPackageName();
702            icon.resourceName = context.getResources().getResourceName(resourceId);
703            return icon;
704        }
705
706        /**
707         * Used to read a ShortcutIconResource from a Parcel.
708         */
709        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
710            new Parcelable.Creator<ShortcutIconResource>() {
711
712                public ShortcutIconResource createFromParcel(Parcel source) {
713                    ShortcutIconResource icon = new ShortcutIconResource();
714                    icon.packageName = source.readString();
715                    icon.resourceName = source.readString();
716                    return icon;
717                }
718
719                public ShortcutIconResource[] newArray(int size) {
720                    return new ShortcutIconResource[size];
721                }
722            };
723
724        /**
725         * No special parcel contents.
726         */
727        public int describeContents() {
728            return 0;
729        }
730
731        public void writeToParcel(Parcel dest, int flags) {
732            dest.writeString(packageName);
733            dest.writeString(resourceName);
734        }
735
736        @Override
737        public String toString() {
738            return resourceName;
739        }
740    }
741
742    /**
743     * Activity Action: Display an activity chooser, allowing the user to pick
744     * what they want to before proceeding.  This can be used as an alternative
745     * to the standard activity picker that is displayed by the system when
746     * you try to start an activity with multiple possible matches, with these
747     * differences in behavior:
748     * <ul>
749     * <li>You can specify the title that will appear in the activity chooser.
750     * <li>The user does not have the option to make one of the matching
751     * activities a preferred activity, and all possible activities will
752     * always be shown even if one of them is currently marked as the
753     * preferred activity.
754     * </ul>
755     * <p>
756     * This action should be used when the user will naturally expect to
757     * select an activity in order to proceed.  An example if when not to use
758     * it is when the user clicks on a "mailto:" link.  They would naturally
759     * expect to go directly to their mail app, so startActivity() should be
760     * called directly: it will
761     * either launch the current preferred app, or put up a dialog allowing the
762     * user to pick an app to use and optionally marking that as preferred.
763     * <p>
764     * In contrast, if the user is selecting a menu item to send a picture
765     * they are viewing to someone else, there are many different things they
766     * may want to do at this point: send it through e-mail, upload it to a
767     * web service, etc.  In this case the CHOOSER action should be used, to
768     * always present to the user a list of the things they can do, with a
769     * nice title given by the caller such as "Send this photo with:".
770     * <p>
771     * As a convenience, an Intent of this form can be created with the
772     * {@link #createChooser} function.
773     * <p>Input: No data should be specified.  get*Extra must have
774     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
775     * and can optionally have a {@link #EXTRA_TITLE} field containing the
776     * title text to display in the chooser.
777     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
778     */
779    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
780    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
781
782    /**
783     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
784     *
785     * @param target The Intent that the user will be selecting an activity
786     * to perform.
787     * @param title Optional title that will be displayed in the chooser.
788     * @return Return a new Intent object that you can hand to
789     * {@link Context#startActivity(Intent) Context.startActivity()} and
790     * related methods.
791     */
792    public static Intent createChooser(Intent target, CharSequence title) {
793        Intent intent = new Intent(ACTION_CHOOSER);
794        intent.putExtra(EXTRA_INTENT, target);
795        if (title != null) {
796            intent.putExtra(EXTRA_TITLE, title);
797        }
798        return intent;
799    }
800    /**
801     * Activity Action: Allow the user to select a particular kind of data and
802     * return it.  This is different than {@link #ACTION_PICK} in that here we
803     * just say what kind of data is desired, not a URI of existing data from
804     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
805     * create the data as it runs (for example taking a picture or recording a
806     * sound), let them browser over the web and download the desired data,
807     * etc.
808     * <p>
809     * There are two main ways to use this action: if you want an specific kind
810     * of data, such as a person contact, you set the MIME type to the kind of
811     * data you want and launch it with {@link Context#startActivity(Intent)}.
812     * The system will then launch the best application to select that kind
813     * of data for you.
814     * <p>
815     * You may also be interested in any of a set of types of content the user
816     * can pick.  For example, an e-mail application that wants to allow the
817     * user to add an attachment to an e-mail message can use this action to
818     * bring up a list of all of the types of content the user can attach.
819     * <p>
820     * In this case, you should wrap the GET_CONTENT intent with a chooser
821     * (through {@link #createChooser}), which will give the proper interface
822     * for the user to pick how to send your data and allow you to specify
823     * a prompt indicating what they are doing.  You will usually specify a
824     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
825     * broad range of content types the user can select from.
826     * <p>
827     * When using such a broad GET_CONTENT action, it is often desireable to
828     * only pick from data that can be represented as a stream.  This is
829     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
830     * <p>
831     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
832     * that no URI is supplied in the intent, as there are no constraints on
833     * where the returned data originally comes from.  You may also include the
834     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
835     * opened as a stream.
836     * <p>
837     * Output: The URI of the item that was picked.  This must be a content:
838     * URI so that any receiver can access it.
839     */
840    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
841    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
842    /**
843     * Activity Action: Dial a number as specified by the data.  This shows a
844     * UI with the number being dialed, allowing the user to explicitly
845     * initiate the call.
846     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
847     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
848     * number.
849     * <p>Output: nothing.
850     */
851    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
852    public static final String ACTION_DIAL = "android.intent.action.DIAL";
853    /**
854     * Activity Action: Perform a call to someone specified by the data.
855     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
856     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
857     * number.
858     * <p>Output: nothing.
859     *
860     * <p>Note: there will be restrictions on which applications can initiate a
861     * call; most applications should use the {@link #ACTION_DIAL}.
862     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
863     * numbers.  Applications can <strong>dial</strong> emergency numbers using
864     * {@link #ACTION_DIAL}, however.
865     */
866    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
867    public static final String ACTION_CALL = "android.intent.action.CALL";
868    /**
869     * Activity Action: Perform a call to an emergency number specified by the
870     * data.
871     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
872     * tel: URI of an explicit phone number.
873     * <p>Output: nothing.
874     * @hide
875     */
876    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
877    /**
878     * Activity action: Perform a call to any number (emergency or not)
879     * specified by the data.
880     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
881     * tel: URI of an explicit phone number.
882     * <p>Output: nothing.
883     * @hide
884     */
885    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
886    /**
887     * Activity Action: Send a message to someone specified by the data.
888     * <p>Input: {@link #getData} is URI describing the target.
889     * <p>Output: nothing.
890     */
891    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
892    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
893    /**
894     * Activity Action: Deliver some data to someone else.  Who the data is
895     * being delivered to is not specified; it is up to the receiver of this
896     * action to ask the user where the data should be sent.
897     * <p>
898     * When launching a SEND intent, you should usually wrap it in a chooser
899     * (through {@link #createChooser}), which will give the proper interface
900     * for the user to pick how to send your data and allow you to specify
901     * a prompt indicating what they are doing.
902     * <p>
903     * Input: {@link #getType} is the MIME type of the data being sent.
904     * get*Extra can have either a {@link #EXTRA_TEXT}
905     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
906     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
907     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
908     * if the MIME type is unknown (this will only allow senders that can
909     * handle generic data streams).
910     * <p>
911     * Optional standard extras, which may be interpreted by some recipients as
912     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
913     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
914     * <p>
915     * Output: nothing.
916     */
917    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
918    public static final String ACTION_SEND = "android.intent.action.SEND";
919    /**
920     * Activity Action: Deliver multiple data to someone else.
921     * <p>
922     * Like ACTION_SEND, except the data is multiple.
923     * <p>
924     * Input: {@link #getType} is the MIME type of the data being sent.
925     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
926     * #EXTRA_STREAM} field, containing the data to be sent.
927     * <p>
928     * Multiple types are supported, and receivers should handle mixed types
929     * whenever possible. The right way for the receiver to check them is to
930     * use the content resolver on each URI. The intent sender should try to
931     * put the most concrete mime type in the intent type, but it can fall
932     * back to {@literal <type>/*} or {@literal *}/* as needed.
933     * <p>
934     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
935     * be image/jpg, but if you are sending image/jpg and image/png, then the
936     * intent's type should be image/*.
937     * <p>
938     * Optional standard extras, which may be interpreted by some recipients as
939     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
940     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
941     * <p>
942     * Output: nothing.
943     */
944    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
945    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
946    /**
947     * Activity Action: Handle an incoming phone call.
948     * <p>Input: nothing.
949     * <p>Output: nothing.
950     */
951    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
952    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
953    /**
954     * Activity Action: Insert an empty item into the given container.
955     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
956     * in which to place the data.
957     * <p>Output: URI of the new data that was created.
958     */
959    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
960    public static final String ACTION_INSERT = "android.intent.action.INSERT";
961    /**
962     * Activity Action: Delete the given data from its container.
963     * <p>Input: {@link #getData} is URI of data to be deleted.
964     * <p>Output: nothing.
965     */
966    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
967    public static final String ACTION_DELETE = "android.intent.action.DELETE";
968    /**
969     * Activity Action: Run the data, whatever that means.
970     * <p>Input: ?  (Note: this is currently specific to the test harness.)
971     * <p>Output: nothing.
972     */
973    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
974    public static final String ACTION_RUN = "android.intent.action.RUN";
975    /**
976     * Activity Action: Perform a data synchronization.
977     * <p>Input: ?
978     * <p>Output: ?
979     */
980    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
981    public static final String ACTION_SYNC = "android.intent.action.SYNC";
982    /**
983     * Activity Action: Pick an activity given an intent, returning the class
984     * selected.
985     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
986     * used with {@link PackageManager#queryIntentActivities} to determine the
987     * set of activities from which to pick.
988     * <p>Output: Class name of the activity that was selected.
989     */
990    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
991    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
992    /**
993     * Activity Action: Perform a search.
994     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
995     * is the text to search for.  If empty, simply
996     * enter your search results Activity with the search UI activated.
997     * <p>Output: nothing.
998     */
999    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1000    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1001    /**
1002     * Activity Action: Start the platform-defined tutorial
1003     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1004     * is the text to search for.  If empty, simply
1005     * enter your search results Activity with the search UI activated.
1006     * <p>Output: nothing.
1007     */
1008    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1009    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1010    /**
1011     * Activity Action: Perform a web search.
1012     * <p>
1013     * Input: {@link android.app.SearchManager#QUERY
1014     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1015     * a url starts with http or https, the site will be opened. If it is plain
1016     * text, Google search will be applied.
1017     * <p>
1018     * Output: nothing.
1019     */
1020    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1021    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1022    /**
1023     * Activity Action: List all available applications
1024     * <p>Input: Nothing.
1025     * <p>Output: nothing.
1026     */
1027    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1028    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1029    /**
1030     * Activity Action: Show settings for choosing wallpaper
1031     * <p>Input: Nothing.
1032     * <p>Output: Nothing.
1033     */
1034    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1035    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1036
1037    /**
1038     * Activity Action: Show activity for reporting a bug.
1039     * <p>Input: Nothing.
1040     * <p>Output: Nothing.
1041     */
1042    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1043    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1044
1045    /**
1046     *  Activity Action: Main entry point for factory tests.  Only used when
1047     *  the device is booting in factory test node.  The implementing package
1048     *  must be installed in the system image.
1049     *  <p>Input: nothing
1050     *  <p>Output: nothing
1051     */
1052    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1053
1054    /**
1055     * Activity Action: The user pressed the "call" button to go to the dialer
1056     * or other appropriate UI for placing a call.
1057     * <p>Input: Nothing.
1058     * <p>Output: Nothing.
1059     */
1060    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1061    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1062
1063    /**
1064     * Activity Action: Start Voice Command.
1065     * <p>Input: Nothing.
1066     * <p>Output: Nothing.
1067     */
1068    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1069    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1070
1071    /**
1072     * Activity Action: Start action associated with long pressing on the
1073     * search key.
1074     * <p>Input: Nothing.
1075     * <p>Output: Nothing.
1076     */
1077    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1078    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1079
1080    /**
1081     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1082     * This intent is delivered to the package which installed the application, usually
1083     * the Market.
1084     * <p>Input: No data is specified. The bug report is passed in using
1085     * an {@link #EXTRA_BUG_REPORT} field.
1086     * <p>Output: Nothing.
1087     * @hide
1088     */
1089    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1090    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1091
1092    /**
1093     * Activity Action: Show power usage information to the user.
1094     * <p>Input: Nothing.
1095     * <p>Output: Nothing.
1096     */
1097    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1098    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1099
1100    /**
1101     * Activity Action: Setup wizard to launch after a platform update.  This
1102     * activity should have a string meta-data field associated with it,
1103     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1104     * the platform for setup.  The activity will be launched only if
1105     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1106     * same value.
1107     * <p>Input: Nothing.
1108     * <p>Output: Nothing.
1109     * @hide
1110     */
1111    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1112    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1113
1114    /**
1115     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1116     * describing the last run version of the platform that was setup.
1117     * @hide
1118     */
1119    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1120
1121    // ---------------------------------------------------------------------
1122    // ---------------------------------------------------------------------
1123    // Standard intent broadcast actions (see action variable).
1124
1125    /**
1126     * Broadcast Action: Sent after the screen turns off.
1127     *
1128     * <p class="note">This is a protected intent that can only be sent
1129     * by the system.
1130     */
1131    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1132    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1133    /**
1134     * Broadcast Action: Sent after the screen turns on.
1135     *
1136     * <p class="note">This is a protected intent that can only be sent
1137     * by the system.
1138     */
1139    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1140    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1141
1142    /**
1143     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1144     * keyguard is gone).
1145     *
1146     * <p class="note">This is a protected intent that can only be sent
1147     * by the system.
1148     */
1149    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1150    public static final String ACTION_USER_PRESENT= "android.intent.action.USER_PRESENT";
1151
1152    /**
1153     * Broadcast Action: The current time has changed.  Sent every
1154     * minute.  You can <em>not</em> receive this through components declared
1155     * in manifests, only by exlicitly registering for it with
1156     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1157     * Context.registerReceiver()}.
1158     *
1159     * <p class="note">This is a protected intent that can only be sent
1160     * by the system.
1161     */
1162    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1163    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1164    /**
1165     * Broadcast Action: The time was set.
1166     */
1167    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1168    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1169    /**
1170     * Broadcast Action: The date has changed.
1171     */
1172    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1173    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1174    /**
1175     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1176     * <ul>
1177     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1178     * </ul>
1179     *
1180     * <p class="note">This is a protected intent that can only be sent
1181     * by the system.
1182     */
1183    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1184    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1185    /**
1186     * Alarm Changed Action: This is broadcast when the AlarmClock
1187     * application's alarm is set or unset.  It is used by the
1188     * AlarmClock application and the StatusBar service.
1189     * @hide
1190     */
1191    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1192    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1193    /**
1194     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1195     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1196     * @hide
1197     */
1198    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1199    public static final String ACTION_SYNC_STATE_CHANGED
1200            = "android.intent.action.SYNC_STATE_CHANGED";
1201    /**
1202     * Broadcast Action: This is broadcast once, after the system has finished
1203     * booting.  It can be used to perform application-specific initialization,
1204     * such as installing alarms.  You must hold the
1205     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1206     * in order to receive this broadcast.
1207     *
1208     * <p class="note">This is a protected intent that can only be sent
1209     * by the system.
1210     */
1211    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1212    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1213    /**
1214     * Broadcast Action: This is broadcast when a user action should request a
1215     * temporary system dialog to dismiss.  Some examples of temporary system
1216     * dialogs are the notification window-shade and the recent tasks dialog.
1217     */
1218    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1219    /**
1220     * Broadcast Action: Trigger the download and eventual installation
1221     * of a package.
1222     * <p>Input: {@link #getData} is the URI of the package file to download.
1223     *
1224     * <p class="note">This is a protected intent that can only be sent
1225     * by the system.
1226     */
1227    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1228    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1229    /**
1230     * Broadcast Action: A new application package has been installed on the
1231     * device. The data contains the name of the package.  Note that the
1232     * newly installed package does <em>not</em> receive this broadcast.
1233     * <p>My include the following extras:
1234     * <ul>
1235     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1236     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1237     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1238     * </ul>
1239     *
1240     * <p class="note">This is a protected intent that can only be sent
1241     * by the system.
1242     */
1243    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1244    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1245    /**
1246     * Broadcast Action: A new version of an application package has been
1247     * installed, replacing an existing version that was previously installed.
1248     * The data contains the name of the package.
1249     * <p>My include the following extras:
1250     * <ul>
1251     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1252     * </ul>
1253     *
1254     * <p class="note">This is a protected intent that can only be sent
1255     * by the system.
1256     */
1257    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1258    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1259    /**
1260     * Broadcast Action: An existing application package has been removed from
1261     * the device.  The data contains the name of the package.  The package
1262     * that is being installed does <em>not</em> receive this Intent.
1263     * <ul>
1264     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1265     * to the package.
1266     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1267     * application -- data and code -- is being removed.
1268     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1269     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1270     * </ul>
1271     *
1272     * <p class="note">This is a protected intent that can only be sent
1273     * by the system.
1274     */
1275    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1276    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1277    /**
1278     * Broadcast Action: An existing application package has been changed (e.g. a component has been
1279     * enabled or disabled.  The data contains the name of the package.
1280     * <ul>
1281     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1282     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME} containing the class name of the changed component.
1283     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the default action of restarting the application.
1284     * </ul>
1285     *
1286     * <p class="note">This is a protected intent that can only be sent
1287     * by the system.
1288     */
1289    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1290    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1291    /**
1292     * Broadcast Action: The user has restarted a package, and all of its
1293     * processes have been killed.  All runtime state
1294     * associated with it (processes, alarms, notifications, etc) should
1295     * be removed.  Note that the restarted package does <em>not</em>
1296     * receive this broadcast.
1297     * The data contains the name of the package.
1298     * <ul>
1299     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1300     * </ul>
1301     *
1302     * <p class="note">This is a protected intent that can only be sent
1303     * by the system.
1304     */
1305    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1306    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1307    /**
1308     * Broadcast Action: The user has cleared the data of a package.  This should
1309     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1310     * its persistent data is erased and this broadcast sent.
1311     * Note that the cleared package does <em>not</em>
1312     * receive this broadcast. The data contains the name of the package.
1313     * <ul>
1314     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1315     * </ul>
1316     *
1317     * <p class="note">This is a protected intent that can only be sent
1318     * by the system.
1319     */
1320    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1321    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1322    /**
1323     * Broadcast Action: A user ID has been removed from the system.  The user
1324     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1325     *
1326     * <p class="note">This is a protected intent that can only be sent
1327     * by the system.
1328     */
1329    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1330    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1331    /**
1332     * Broadcast Action:  The current system wallpaper has changed.  See
1333     * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
1334     */
1335    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1336    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1337    /**
1338     * Broadcast Action: The current device {@link android.content.res.Configuration}
1339     * (orientation, locale, etc) has changed.  When such a change happens, the
1340     * UIs (view hierarchy) will need to be rebuilt based on this new
1341     * information; for the most part, applications don't need to worry about
1342     * this, because the system will take care of stopping and restarting the
1343     * application to make sure it sees the new changes.  Some system code that
1344     * can not be restarted will need to watch for this action and handle it
1345     * appropriately.
1346     *
1347     * <p class="note">
1348     * You can <em>not</em> receive this through components declared
1349     * in manifests, only by explicitly registering for it with
1350     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1351     * Context.registerReceiver()}.
1352     *
1353     * <p class="note">This is a protected intent that can only be sent
1354     * by the system.
1355     *
1356     * @see android.content.res.Configuration
1357     */
1358    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1359    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1360    /**
1361     * Broadcast Action: The current device's locale has changed.
1362     *
1363     * <p class="note">This is a protected intent that can only be sent
1364     * by the system.
1365     */
1366    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1367    public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
1368    /**
1369     * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
1370     * charging state, level, and other information about the battery.
1371     * See {@link android.os.BatteryManager} for documentation on the
1372     * contents of the Intent.
1373     *
1374     * <p class="note">
1375     * You can <em>not</em> receive this through components declared
1376     * in manifests, only by explicitly registering for it with
1377     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1378     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1379     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1380     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1381     * broadcasts that are sent and can be received through manifest
1382     * receivers.
1383     *
1384     * <p class="note">This is a protected intent that can only be sent
1385     * by the system.
1386     */
1387    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1388    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1389    /**
1390     * Broadcast Action:  Indicates low battery condition on the device.
1391     * This broadcast corresponds to the "Low battery warning" system dialog.
1392     *
1393     * <p class="note">This is a protected intent that can only be sent
1394     * by the system.
1395     */
1396    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1397    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1398    /**
1399     * Broadcast Action:  Indicates the battery is now okay after being low.
1400     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1401     * gone back up to an okay state.
1402     *
1403     * <p class="note">This is a protected intent that can only be sent
1404     * by the system.
1405     */
1406    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1407    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1408    /**
1409     * Broadcast Action:  External power has been connected to the device.
1410     * This is intended for applications that wish to register specifically to this notification.
1411     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1412     * stay active to receive this notification.  This action can be used to implement actions
1413     * that wait until power is available to trigger.
1414     *
1415     * <p class="note">This is a protected intent that can only be sent
1416     * by the system.
1417     */
1418    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1419    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1420    /**
1421     * Broadcast Action:  External power has been removed from the device.
1422     * This is intended for applications that wish to register specifically to this notification.
1423     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1424     * stay active to receive this notification.  This action can be used to implement actions
1425     * that wait until power is available to trigger.
1426     *
1427     * <p class="note">This is a protected intent that can only be sent
1428     * by the system.
1429     */
1430    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1431    public static final String ACTION_POWER_DISCONNECTED =
1432            "android.intent.action.ACTION_POWER_DISCONNECTED";
1433    /**
1434     * Broadcast Action:  Device is shutting down.
1435     * This is broadcast when the device is being shut down (completely turned
1436     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1437     * will proceed and all unsaved data lost.  Apps will not normally need
1438     * to handle this, since the foreground activity will be paused as well.
1439     *
1440     * <p class="note">This is a protected intent that can only be sent
1441     * by the system.
1442     */
1443    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1444    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1445    /**
1446     * Activity Action:  Start this activity to request system shutdown.
1447     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1448     * to request confirmation from the user before shutting down.
1449     *
1450     * <p class="note">This is a protected intent that can only be sent
1451     * by the system.
1452     *
1453     * {@hide}
1454     */
1455    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1456    /**
1457     * Broadcast Action:  A sticky broadcast that indicates low memory
1458     * condition on the device
1459     *
1460     * <p class="note">This is a protected intent that can only be sent
1461     * by the system.
1462     */
1463    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1464    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1465    /**
1466     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1467     *
1468     * <p class="note">This is a protected intent that can only be sent
1469     * by the system.
1470     */
1471    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1472    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1473    /**
1474     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1475     * and package management should be started.
1476     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1477     * notification.
1478     */
1479    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1480    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1481    /**
1482     * Broadcast Action:  The device has entered USB Mass Storage mode.
1483     * This is used mainly for the USB Settings panel.
1484     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1485     * when the SD card file system is mounted or unmounted
1486     */
1487    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1488    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1489
1490    /**
1491     * Broadcast Action:  The device has exited USB Mass Storage mode.
1492     * This is used mainly for the USB Settings panel.
1493     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1494     * when the SD card file system is mounted or unmounted
1495     */
1496    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1497    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1498
1499    /**
1500     * Broadcast Action:  External media has been removed.
1501     * The path to the mount point for the removed media is contained in the Intent.mData field.
1502     */
1503    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1504    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1505
1506    /**
1507     * Broadcast Action:  External media is present, but not mounted at its mount point.
1508     * The path to the mount point for the removed media is contained in the Intent.mData field.
1509     */
1510    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1511    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1512
1513    /**
1514     * Broadcast Action:  External media is present, and being disk-checked
1515     * The path to the mount point for the checking media is contained in the Intent.mData field.
1516     */
1517    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1518    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1519
1520    /**
1521     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1522     * The path to the mount point for the checking media is contained in the Intent.mData field.
1523     */
1524    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1525    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1526
1527    /**
1528     * Broadcast Action:  External media is present and mounted at its mount point.
1529     * The path to the mount point for the removed media is contained in the Intent.mData field.
1530     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1531     * media was mounted read only.
1532     */
1533    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1534    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1535
1536    /**
1537     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1538     * The path to the mount point for the removed media is contained in the Intent.mData field.
1539     */
1540    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1541    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1542
1543    /**
1544     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1545     * The path to the mount point for the removed media is contained in the Intent.mData field.
1546     */
1547    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1548    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1549
1550    /**
1551     * Broadcast Action:  External media is present but cannot be mounted.
1552     * The path to the mount point for the removed media is contained in the Intent.mData field.
1553     */
1554    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1555    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1556
1557   /**
1558     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1559     * Applications should close all files they have open within the mount point when they receive this intent.
1560     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1561     */
1562    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1563    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1564
1565    /**
1566     * Broadcast Action:  The media scanner has started scanning a directory.
1567     * The path to the directory being scanned is contained in the Intent.mData field.
1568     */
1569    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1570    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1571
1572   /**
1573     * Broadcast Action:  The media scanner has finished scanning a directory.
1574     * The path to the scanned directory is contained in the Intent.mData field.
1575     */
1576    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1577    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1578
1579   /**
1580     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1581     * The path to the file is contained in the Intent.mData field.
1582     */
1583    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1584    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1585
1586   /**
1587     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1588     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1589     * caused the broadcast.
1590     */
1591    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1592    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1593
1594    /**
1595     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1596     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1597     * caused the broadcast.
1598     */
1599    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1600    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1601
1602    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1603    // location; they are not general-purpose actions.
1604
1605    /**
1606     * Broadcast Action: An GTalk connection has been established.
1607     */
1608    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1609    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1610            "android.intent.action.GTALK_CONNECTED";
1611
1612    /**
1613     * Broadcast Action: An GTalk connection has been disconnected.
1614     */
1615    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1616    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1617            "android.intent.action.GTALK_DISCONNECTED";
1618
1619    /**
1620     * Broadcast Action: An input method has been changed.
1621     */
1622    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1623    public static final String ACTION_INPUT_METHOD_CHANGED =
1624            "android.intent.action.INPUT_METHOD_CHANGED";
1625
1626    /**
1627     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1628     * more radios have been turned off or on. The intent will have the following extra value:</p>
1629     * <ul>
1630     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1631     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1632     *   turned off</li>
1633     * </ul>
1634     *
1635     * <p class="note">This is a protected intent that can only be sent
1636     * by the system.
1637     */
1638    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1639    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1640
1641    /**
1642     * Broadcast Action: Some content providers have parts of their namespace
1643     * where they publish new events or items that the user may be especially
1644     * interested in. For these things, they may broadcast this action when the
1645     * set of interesting items change.
1646     *
1647     * For example, GmailProvider sends this notification when the set of unread
1648     * mail in the inbox changes.
1649     *
1650     * <p>The data of the intent identifies which part of which provider
1651     * changed. When queried through the content resolver, the data URI will
1652     * return the data set in question.
1653     *
1654     * <p>The intent will have the following extra values:
1655     * <ul>
1656     *   <li><em>count</em> - The number of items in the data set. This is the
1657     *       same as the number of items in the cursor returned by querying the
1658     *       data URI. </li>
1659     * </ul>
1660     *
1661     * This intent will be sent at boot (if the count is non-zero) and when the
1662     * data set changes. It is possible for the data set to change without the
1663     * count changing (for example, if a new unread message arrives in the same
1664     * sync operation in which a message is archived). The phone should still
1665     * ring/vibrate/etc as normal in this case.
1666     */
1667    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1668    public static final String ACTION_PROVIDER_CHANGED =
1669            "android.intent.action.PROVIDER_CHANGED";
1670
1671    /**
1672     * Broadcast Action: Wired Headset plugged in or unplugged.
1673     *
1674     * <p>The intent will have the following extra values:
1675     * <ul>
1676     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1677     *   <li><em>name</em> - Headset type, human readable string </li>
1678     * </ul>
1679     * </ul>
1680     */
1681    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1682    public static final String ACTION_HEADSET_PLUG =
1683            "android.intent.action.HEADSET_PLUG";
1684
1685    /**
1686     * Broadcast Action: An outgoing call is about to be placed.
1687     *
1688     * <p>The Intent will have the following extra value:
1689     * <ul>
1690     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1691     *       the phone number originally intended to be dialed.</li>
1692     * </ul>
1693     * <p>Once the broadcast is finished, the resultData is used as the actual
1694     * number to call.  If  <code>null</code>, no call will be placed.</p>
1695     * <p>It is perfectly acceptable for multiple receivers to process the
1696     * outgoing call in turn: for example, a parental control application
1697     * might verify that the user is authorized to place the call at that
1698     * time, then a number-rewriting application might add an area code if
1699     * one was not specified.</p>
1700     * <p>For consistency, any receiver whose purpose is to prohibit phone
1701     * calls should have a priority of 0, to ensure it will see the final
1702     * phone number to be dialed.
1703     * Any receiver whose purpose is to rewrite phone numbers to be called
1704     * should have a positive priority.
1705     * Negative priorities are reserved for the system for this broadcast;
1706     * using them may cause problems.</p>
1707     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1708     * abort the broadcast.</p>
1709     * <p>Emergency calls cannot be intercepted using this mechanism, and
1710     * other calls cannot be modified to call emergency numbers using this
1711     * mechanism.
1712     * <p>You must hold the
1713     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1714     * permission to receive this Intent.</p>
1715     *
1716     * <p class="note">This is a protected intent that can only be sent
1717     * by the system.
1718     */
1719    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1720    public static final String ACTION_NEW_OUTGOING_CALL =
1721            "android.intent.action.NEW_OUTGOING_CALL";
1722
1723    /**
1724     * Broadcast Action: Have the device reboot.  This is only for use by
1725     * system code.
1726     *
1727     * <p class="note">This is a protected intent that can only be sent
1728     * by the system.
1729     */
1730    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1731    public static final String ACTION_REBOOT =
1732            "android.intent.action.REBOOT";
1733
1734    /**
1735     * Broadcast Action:  A sticky broadcast indicating the phone was docked
1736     * or undocked.  Includes the extra
1737     * field {@link #EXTRA_DOCK_STATE}, containing the current dock state.
1738     * This is intended for monitoring the current dock state.
1739     * To launch an activity from a dock state change, use {@link #CATEGORY_CAR_DOCK}
1740     * or {@link #CATEGORY_DESK_DOCK} instead.
1741     */
1742    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1743    public static final String ACTION_DOCK_EVENT =
1744            "android.intent.action.DOCK_EVENT";
1745
1746    /**
1747     * Broadcast Action: a remote intent is to be broadcasted.
1748     *
1749     * A remote intent is used for remote RPC between devices. The remote intent
1750     * is serialized and sent from one device to another device. The receiving
1751     * device parses the remote intent and broadcasts it. Note that anyone can
1752     * broadcast a remote intent. However, if the intent receiver of the remote intent
1753     * does not trust intent broadcasts from arbitrary intent senders, it should require
1754     * the sender to hold certain permissions so only trusted sender's broadcast will be
1755     * let through.
1756     * @hide
1757     */
1758    public static final String ACTION_REMOTE_INTENT =
1759            "android.intent.action.REMOTE_INTENT";
1760
1761    /**
1762     * Broadcast Action: hook for permforming cleanup after a system update.
1763     *
1764     * The broadcast is sent when the system is booting, before the
1765     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1766     * image.  A receiver for this should do its work and then disable itself
1767     * so that it does not get run again at the next boot.
1768     * @hide
1769     */
1770    public static final String ACTION_PRE_BOOT_COMPLETED =
1771            "android.intent.action.PRE_BOOT_COMPLETED";
1772
1773    // ---------------------------------------------------------------------
1774    // ---------------------------------------------------------------------
1775    // Standard intent categories (see addCategory()).
1776
1777    /**
1778     * Set if the activity should be an option for the default action
1779     * (center press) to perform on a piece of data.  Setting this will
1780     * hide from the user any activities without it set when performing an
1781     * action on some data.  Note that this is normal -not- set in the
1782     * Intent when initiating an action -- it is for use in intent filters
1783     * specified in packages.
1784     */
1785    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1786    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1787    /**
1788     * Activities that can be safely invoked from a browser must support this
1789     * category.  For example, if the user is viewing a web page or an e-mail
1790     * and clicks on a link in the text, the Intent generated execute that
1791     * link will require the BROWSABLE category, so that only activities
1792     * supporting this category will be considered as possible actions.  By
1793     * supporting this category, you are promising that there is nothing
1794     * damaging (without user intervention) that can happen by invoking any
1795     * matching Intent.
1796     */
1797    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1798    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1799    /**
1800     * Set if the activity should be considered as an alternative action to
1801     * the data the user is currently viewing.  See also
1802     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1803     * applies to the selection in a list of items.
1804     *
1805     * <p>Supporting this category means that you would like your activity to be
1806     * displayed in the set of alternative things the user can do, usually as
1807     * part of the current activity's options menu.  You will usually want to
1808     * include a specific label in the &lt;intent-filter&gt; of this action
1809     * describing to the user what it does.
1810     *
1811     * <p>The action of IntentFilter with this category is important in that it
1812     * describes the specific action the target will perform.  This generally
1813     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1814     * a specific name such as "com.android.camera.action.CROP.  Only one
1815     * alternative of any particular action will be shown to the user, so using
1816     * a specific action like this makes sure that your alternative will be
1817     * displayed while also allowing other applications to provide their own
1818     * overrides of that particular action.
1819     */
1820    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1821    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1822    /**
1823     * Set if the activity should be considered as an alternative selection
1824     * action to the data the user has currently selected.  This is like
1825     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1826     * of items from which the user can select, giving them alternatives to the
1827     * default action that will be performed on it.
1828     */
1829    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1830    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1831    /**
1832     * Intended to be used as a tab inside of an containing TabActivity.
1833     */
1834    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1835    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1836    /**
1837     * Should be displayed in the top-level launcher.
1838     */
1839    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1840    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1841    /**
1842     * Provides information about the package it is in; typically used if
1843     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1844     * a front-door to the user without having to be shown in the all apps list.
1845     */
1846    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1847    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1848    /**
1849     * This is the home activity, that is the first activity that is displayed
1850     * when the device boots.
1851     */
1852    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1853    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1854    /**
1855     * This activity is a preference panel.
1856     */
1857    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1858    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1859    /**
1860     * This activity is a development preference panel.
1861     */
1862    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1863    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1864    /**
1865     * Capable of running inside a parent activity container.
1866     */
1867    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1868    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1869    /**
1870     * This activity may be exercised by the monkey or other automated test tools.
1871     */
1872    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1873    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1874    /**
1875     * To be used as a test (not part of the normal user experience).
1876     */
1877    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1878    /**
1879     * To be used as a unit test (run through the Test Harness).
1880     */
1881    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1882    /**
1883     * To be used as an sample code example (not part of the normal user
1884     * experience).
1885     */
1886    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1887    /**
1888     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1889     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1890     * when queried, though it is allowable for those columns to be blank.
1891     */
1892    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1893    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1894
1895    /**
1896     * To be used as code under test for framework instrumentation tests.
1897     */
1898    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1899            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1900    /**
1901     * An activity to run when device is inserted into a car dock.
1902     * Used with {@link #ACTION_MAIN} to launch an activity.
1903     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1904     */
1905    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1906    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
1907    /**
1908     * An activity to run when device is inserted into a car dock.
1909     * Used with {@link #ACTION_MAIN} to launch an activity.
1910     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1911     */
1912    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1913    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
1914
1915    // ---------------------------------------------------------------------
1916    // ---------------------------------------------------------------------
1917    // Standard extra data keys.
1918
1919    /**
1920     * The initial data to place in a newly created record.  Use with
1921     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1922     * fields as would be given to the underlying ContentProvider.insert()
1923     * call.
1924     */
1925    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1926
1927    /**
1928     * A constant CharSequence that is associated with the Intent, used with
1929     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1930     * this may be a styled CharSequence, so you must use
1931     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1932     * retrieve it.
1933     */
1934    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1935
1936    /**
1937     * A content: URI holding a stream of data associated with the Intent,
1938     * used with {@link #ACTION_SEND} to supply the data being sent.
1939     */
1940    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1941
1942    /**
1943     * A String[] holding e-mail addresses that should be delivered to.
1944     */
1945    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1946
1947    /**
1948     * A String[] holding e-mail addresses that should be carbon copied.
1949     */
1950    public static final String EXTRA_CC       = "android.intent.extra.CC";
1951
1952    /**
1953     * A String[] holding e-mail addresses that should be blind carbon copied.
1954     */
1955    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1956
1957    /**
1958     * A constant string holding the desired subject line of a message.
1959     */
1960    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1961
1962    /**
1963     * An Intent describing the choices you would like shown with
1964     * {@link #ACTION_PICK_ACTIVITY}.
1965     */
1966    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1967
1968    /**
1969     * A CharSequence dialog title to provide to the user when used with a
1970     * {@link #ACTION_CHOOSER}.
1971     */
1972    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1973
1974    /**
1975     * A Parcelable[] of {@link Intent} or
1976     * {@link android.content.pm.LabeledIntent} objects as set with
1977     * {@link #putExtra(String, Parcelable[])} of additional activities to place
1978     * a the front of the list of choices, when shown to the user with a
1979     * {@link #ACTION_CHOOSER}.
1980     */
1981    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
1982
1983    /**
1984     * A {@link android.view.KeyEvent} object containing the event that
1985     * triggered the creation of the Intent it is in.
1986     */
1987    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1988
1989    /**
1990     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
1991     * before shutting down.
1992     *
1993     * {@hide}
1994     */
1995    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
1996
1997    /**
1998     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1999     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
2000     * of restarting the application.
2001     */
2002    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
2003
2004    /**
2005     * A String holding the phone number originally entered in
2006     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
2007     * number to call in a {@link android.content.Intent#ACTION_CALL}.
2008     */
2009    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
2010    /**
2011     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
2012     * intents to supply the uid the package had been assigned.  Also an optional
2013     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2014     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2015     * purpose.
2016     */
2017    public static final String EXTRA_UID = "android.intent.extra.UID";
2018
2019    /**
2020     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2021     * intents to indicate whether this represents a full uninstall (removing
2022     * both the code and its data) or a partial uninstall (leaving its data,
2023     * implying that this is an update).
2024     */
2025    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2026
2027    /**
2028     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2029     * intents to indicate that this is a replacement of the package, so this
2030     * broadcast will immediately be followed by an add broadcast for a
2031     * different version of the same package.
2032     */
2033    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2034
2035    /**
2036     * Used as an int extra field in {@link android.app.AlarmManager} intents
2037     * to tell the application being invoked how many pending alarms are being
2038     * delievered with the intent.  For one-shot alarms this will always be 1.
2039     * For recurring alarms, this might be greater than 1 if the device was
2040     * asleep or powered off at the time an earlier alarm would have been
2041     * delivered.
2042     */
2043    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2044
2045    /**
2046     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2047     * intents to request the dock state.  Possible values are
2048     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2049     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2050     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
2051     */
2052    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2053
2054    /**
2055     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2056     * to represent that the phone is not in any dock.
2057     */
2058    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2059
2060    /**
2061     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2062     * to represent that the phone is in a desk dock.
2063     */
2064    public static final int EXTRA_DOCK_STATE_DESK = 1;
2065
2066    /**
2067     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2068     * to represent that the phone is in a car dock.
2069     */
2070    public static final int EXTRA_DOCK_STATE_CAR = 2;
2071
2072    /**
2073     * Boolean that can be supplied as meta-data with a dock activity, to
2074     * indicate that the dock should take over the home key when it is active.
2075     */
2076    public static final String METADATA_DOCK_HOME = "android.dock_home";
2077
2078    /**
2079     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2080     * the bug report.
2081     *
2082     * @hide
2083     */
2084    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2085
2086    /**
2087     * Used as a string extra field when sending an intent to PackageInstaller to install a
2088     * package. Specifies the installer package name; this package will receive the
2089     * {@link #ACTION_APP_ERROR} intent.
2090     *
2091     * @hide
2092     */
2093    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2094            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2095
2096    /**
2097     * Used in the extra field in the remote intent. It's astring token passed with the
2098     * remote intent.
2099     */
2100    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2101            "android.intent.extra.remote_intent_token";
2102
2103    /**
2104     * Used as an int extra field in {@link android.content.Intent#ACTION_PACKAGE_CHANGED}
2105     * intent to supply the name of the component that changed.
2106     *
2107     */
2108    public static final String EXTRA_CHANGED_COMPONENT_NAME =
2109            "android.intent.extra.changed_component_name";
2110
2111    /**
2112     * @hide
2113     * Magic extra system code can use when binding, to give a label for
2114     * who it is that has bound to a service.  This is an integer giving
2115     * a framework string resource that can be displayed to the user.
2116     */
2117    public static final String EXTRA_CLIENT_LABEL =
2118            "android.intent.extra.client_label";
2119
2120    /**
2121     * @hide
2122     * Magic extra system code can use when binding, to give a PendingIntent object
2123     * that can be launched for the user to disable the system's use of this
2124     * service.
2125     */
2126    public static final String EXTRA_CLIENT_INTENT =
2127            "android.intent.extra.client_intent";
2128
2129    // ---------------------------------------------------------------------
2130    // ---------------------------------------------------------------------
2131    // Intent flags (see mFlags variable).
2132
2133    /**
2134     * If set, the recipient of this Intent will be granted permission to
2135     * perform read operations on the Uri in the Intent's data.
2136     */
2137    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2138    /**
2139     * If set, the recipient of this Intent will be granted permission to
2140     * perform write operations on the Uri in the Intent's data.
2141     */
2142    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2143    /**
2144     * Can be set by the caller to indicate that this Intent is coming from
2145     * a background operation, not from direct user interaction.
2146     */
2147    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2148    /**
2149     * A flag you can enable for debugging: when set, log messages will be
2150     * printed during the resolution of this intent to show you what has
2151     * been found to create the final resolved list.
2152     */
2153    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2154
2155    /**
2156     * If set, the new activity is not kept in the history stack.  As soon as
2157     * the user navigates away from it, the activity is finished.  This may also
2158     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2159     * noHistory} attribute.
2160     */
2161    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2162    /**
2163     * If set, the activity will not be launched if it is already running
2164     * at the top of the history stack.
2165     */
2166    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2167    /**
2168     * If set, this activity will become the start of a new task on this
2169     * history stack.  A task (from the activity that started it to the
2170     * next task activity) defines an atomic group of activities that the
2171     * user can move to.  Tasks can be moved to the foreground and background;
2172     * all of the activities inside of a particular task always remain in
2173     * the same order.  See
2174     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2175     * Activities and Tasks</a> for more details on tasks.
2176     *
2177     * <p>This flag is generally used by activities that want
2178     * to present a "launcher" style behavior: they give the user a list of
2179     * separate things that can be done, which otherwise run completely
2180     * independently of the activity launching them.
2181     *
2182     * <p>When using this flag, if a task is already running for the activity
2183     * you are now starting, then a new activity will not be started; instead,
2184     * the current task will simply be brought to the front of the screen with
2185     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2186     * to disable this behavior.
2187     *
2188     * <p>This flag can not be used when the caller is requesting a result from
2189     * the activity being launched.
2190     */
2191    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2192    /**
2193     * <strong>Do not use this flag unless you are implementing your own
2194     * top-level application launcher.</strong>  Used in conjunction with
2195     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2196     * behavior of bringing an existing task to the foreground.  When set,
2197     * a new task is <em>always</em> started to host the Activity for the
2198     * Intent, regardless of whether there is already an existing task running
2199     * the same thing.
2200     *
2201     * <p><strong>Because the default system does not include graphical task management,
2202     * you should not use this flag unless you provide some way for a user to
2203     * return back to the tasks you have launched.</strong>
2204     *
2205     * <p>This flag is ignored if
2206     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2207     *
2208     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2209     * Activities and Tasks</a> for more details on tasks.
2210     */
2211    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2212    /**
2213     * If set, and the activity being launched is already running in the
2214     * current task, then instead of launching a new instance of that activity,
2215     * all of the other activities on top of it will be closed and this Intent
2216     * will be delivered to the (now on top) old activity as a new Intent.
2217     *
2218     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2219     * If D calls startActivity() with an Intent that resolves to the component
2220     * of activity B, then C and D will be finished and B receive the given
2221     * Intent, resulting in the stack now being: A, B.
2222     *
2223     * <p>The currently running instance of activity B in the above example will
2224     * either receive the new intent you are starting here in its
2225     * onNewIntent() method, or be itself finished and restarted with the
2226     * new intent.  If it has declared its launch mode to be "multiple" (the
2227     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2228     * the same intent, then it will be finished and re-created; for all other
2229     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2230     * Intent will be delivered to the current instance's onNewIntent().
2231     *
2232     * <p>This launch mode can also be used to good effect in conjunction with
2233     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2234     * of a task, it will bring any currently running instance of that task
2235     * to the foreground, and then clear it to its root state.  This is
2236     * especially useful, for example, when launching an activity from the
2237     * notification manager.
2238     *
2239     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2240     * Activities and Tasks</a> for more details on tasks.
2241     */
2242    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2243    /**
2244     * If set and this intent is being used to launch a new activity from an
2245     * existing one, then the reply target of the existing activity will be
2246     * transfered to the new activity.  This way the new activity can call
2247     * {@link android.app.Activity#setResult} and have that result sent back to
2248     * the reply target of the original activity.
2249     */
2250    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2251    /**
2252     * If set and this intent is being used to launch a new activity from an
2253     * existing one, the current activity will not be counted as the top
2254     * activity for deciding whether the new intent should be delivered to
2255     * the top instead of starting a new one.  The previous activity will
2256     * be used as the top, with the assumption being that the current activity
2257     * will finish itself immediately.
2258     */
2259    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2260    /**
2261     * If set, the new activity is not kept in the list of recently launched
2262     * activities.
2263     */
2264    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2265    /**
2266     * This flag is not normally set by application code, but set for you by
2267     * the system as described in the
2268     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2269     * launchMode} documentation for the singleTask mode.
2270     */
2271    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2272    /**
2273     * If set, and this activity is either being started in a new task or
2274     * bringing to the top an existing task, then it will be launched as
2275     * the front door of the task.  This will result in the application of
2276     * any affinities needed to have that task in the proper state (either
2277     * moving activities to or from it), or simply resetting that task to
2278     * its initial state if needed.
2279     */
2280    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2281    /**
2282     * This flag is not normally set by application code, but set for you by
2283     * the system if this activity is being launched from history
2284     * (longpress home key).
2285     */
2286    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2287    /**
2288     * If set, this marks a point in the task's activity stack that should
2289     * be cleared when the task is reset.  That is, the next time the task
2290     * is brought to the foreground with
2291     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2292     * the user re-launching it from home), this activity and all on top of
2293     * it will be finished so that the user does not return to them, but
2294     * instead returns to whatever activity preceeded it.
2295     *
2296     * <p>This is useful for cases where you have a logical break in your
2297     * application.  For example, an e-mail application may have a command
2298     * to view an attachment, which launches an image view activity to
2299     * display it.  This activity should be part of the e-mail application's
2300     * task, since it is a part of the task the user is involved in.  However,
2301     * if the user leaves that task, and later selects the e-mail app from
2302     * home, we may like them to return to the conversation they were
2303     * viewing, not the picture attachment, since that is confusing.  By
2304     * setting this flag when launching the image viewer, that viewer and
2305     * any activities it starts will be removed the next time the user returns
2306     * to mail.
2307     */
2308    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2309    /**
2310     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2311     * callback from occurring on the current frontmost activity before it is
2312     * paused as the newly-started activity is brought to the front.
2313     *
2314     * <p>Typically, an activity can rely on that callback to indicate that an
2315     * explicit user action has caused their activity to be moved out of the
2316     * foreground. The callback marks an appropriate point in the activity's
2317     * lifecycle for it to dismiss any notifications that it intends to display
2318     * "until the user has seen them," such as a blinking LED.
2319     *
2320     * <p>If an activity is ever started via any non-user-driven events such as
2321     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2322     * Context#startActivity Context.startActivity}, ensuring that the pausing
2323     * activity does not think the user has acknowledged its notification.
2324     */
2325    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2326    /**
2327     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2328     * this flag will cause the launched activity to be brought to the front of its
2329     * task's history stack if it is already running.
2330     *
2331     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2332     * If D calls startActivity() with an Intent that resolves to the component
2333     * of activity B, then B will be brought to the front of the history stack,
2334     * with this resulting order:  A, C, D, B.
2335     *
2336     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2337     * specified.
2338     */
2339    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2340    /**
2341     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2342     * this flag will prevent the system from applying an activity transition
2343     * animation to go to the next activity state.  This doesn't mean an
2344     * animation will never run -- if another activity change happens that doesn't
2345     * specify this flag before the activity started here is displayed, then
2346     * that transition will be used.  This this flag can be put to good use
2347     * when you are going to do a series of activity operations but the
2348     * animation seen by the user shouldn't be driven by the first activity
2349     * change but rather a later one.
2350     */
2351    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
2352    /**
2353     * If set, when sending a broadcast only registered receivers will be
2354     * called -- no BroadcastReceiver components will be launched.
2355     */
2356    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2357    /**
2358     * If set, when sending a broadcast <i>before boot has completed</i> only
2359     * registered receivers will be called -- no BroadcastReceiver components
2360     * will be launched.  Sticky intent state will be recorded properly even
2361     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2362     * is specified in the broadcast intent, this flag is unnecessary.
2363     *
2364     * <p>This flag is only for use by system sevices as a convenience to
2365     * avoid having to implement a more complex mechanism around detection
2366     * of boot completion.
2367     *
2368     * @hide
2369     */
2370    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2371    /**
2372     * Set when this broadcast is for a boot upgrade, a special mode that
2373     * allows the broadcast to be sent before the system is ready and launches
2374     * the app process with no providers running in it.
2375     * @hide
2376     */
2377    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x10000000;
2378
2379    /**
2380     * @hide Flags that can't be changed with PendingIntent.
2381     */
2382    public static final int IMMUTABLE_FLAGS =
2383            FLAG_GRANT_READ_URI_PERMISSION
2384            | FLAG_GRANT_WRITE_URI_PERMISSION;
2385
2386    // ---------------------------------------------------------------------
2387    // ---------------------------------------------------------------------
2388    // toUri() and parseUri() options.
2389
2390    /**
2391     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2392     * always has the "intent:" scheme.  This syntax can be used when you want
2393     * to later disambiguate between URIs that are intended to describe an
2394     * Intent vs. all others that should be treated as raw URIs.  When used
2395     * with {@link #parseUri}, any other scheme will result in a generic
2396     * VIEW action for that raw URI.
2397     */
2398    public static final int URI_INTENT_SCHEME = 1<<0;
2399
2400    // ---------------------------------------------------------------------
2401
2402    private String mAction;
2403    private Uri mData;
2404    private String mType;
2405    private String mPackage;
2406    private ComponentName mComponent;
2407    private int mFlags;
2408    private HashSet<String> mCategories;
2409    private Bundle mExtras;
2410
2411    // ---------------------------------------------------------------------
2412
2413    /**
2414     * Create an empty intent.
2415     */
2416    public Intent() {
2417    }
2418
2419    /**
2420     * Copy constructor.
2421     */
2422    public Intent(Intent o) {
2423        this.mAction = o.mAction;
2424        this.mData = o.mData;
2425        this.mType = o.mType;
2426        this.mPackage = o.mPackage;
2427        this.mComponent = o.mComponent;
2428        this.mFlags = o.mFlags;
2429        if (o.mCategories != null) {
2430            this.mCategories = new HashSet<String>(o.mCategories);
2431        }
2432        if (o.mExtras != null) {
2433            this.mExtras = new Bundle(o.mExtras);
2434        }
2435    }
2436
2437    @Override
2438    public Object clone() {
2439        return new Intent(this);
2440    }
2441
2442    private Intent(Intent o, boolean all) {
2443        this.mAction = o.mAction;
2444        this.mData = o.mData;
2445        this.mType = o.mType;
2446        this.mPackage = o.mPackage;
2447        this.mComponent = o.mComponent;
2448        if (o.mCategories != null) {
2449            this.mCategories = new HashSet<String>(o.mCategories);
2450        }
2451    }
2452
2453    /**
2454     * Make a clone of only the parts of the Intent that are relevant for
2455     * filter matching: the action, data, type, component, and categories.
2456     */
2457    public Intent cloneFilter() {
2458        return new Intent(this, false);
2459    }
2460
2461    /**
2462     * Create an intent with a given action.  All other fields (data, type,
2463     * class) are null.  Note that the action <em>must</em> be in a
2464     * namespace because Intents are used globally in the system -- for
2465     * example the system VIEW action is android.intent.action.VIEW; an
2466     * application's custom action would be something like
2467     * com.google.app.myapp.CUSTOM_ACTION.
2468     *
2469     * @param action The Intent action, such as ACTION_VIEW.
2470     */
2471    public Intent(String action) {
2472        mAction = action;
2473    }
2474
2475    /**
2476     * Create an intent with a given action and for a given data url.  Note
2477     * that the action <em>must</em> be in a namespace because Intents are
2478     * used globally in the system -- for example the system VIEW action is
2479     * android.intent.action.VIEW; an application's custom action would be
2480     * something like com.google.app.myapp.CUSTOM_ACTION.
2481     *
2482     * <p><em>Note: scheme and host name matching in the Android framework is
2483     * case-sensitive, unlike the formal RFC.  As a result,
2484     * you should always ensure that you write your Uri with these elements
2485     * using lower case letters, and normalize any Uris you receive from
2486     * outside of Android to ensure the scheme and host is lower case.</em></p>
2487     *
2488     * @param action The Intent action, such as ACTION_VIEW.
2489     * @param uri The Intent data URI.
2490     */
2491    public Intent(String action, Uri uri) {
2492        mAction = action;
2493        mData = uri;
2494    }
2495
2496    /**
2497     * Create an intent for a specific component.  All other fields (action, data,
2498     * type, class) are null, though they can be modified later with explicit
2499     * calls.  This provides a convenient way to create an intent that is
2500     * intended to execute a hard-coded class name, rather than relying on the
2501     * system to find an appropriate class for you; see {@link #setComponent}
2502     * for more information on the repercussions of this.
2503     *
2504     * @param packageContext A Context of the application package implementing
2505     * this class.
2506     * @param cls The component class that is to be used for the intent.
2507     *
2508     * @see #setClass
2509     * @see #setComponent
2510     * @see #Intent(String, android.net.Uri , Context, Class)
2511     */
2512    public Intent(Context packageContext, Class<?> cls) {
2513        mComponent = new ComponentName(packageContext, cls);
2514    }
2515
2516    /**
2517     * Create an intent for a specific component with a specified action and data.
2518     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2519     * construct the Intent and then calling {@link #setClass} to set its
2520     * class.
2521     *
2522     * <p><em>Note: scheme and host name matching in the Android framework is
2523     * case-sensitive, unlike the formal RFC.  As a result,
2524     * you should always ensure that you write your Uri with these elements
2525     * using lower case letters, and normalize any Uris you receive from
2526     * outside of Android to ensure the scheme and host is lower case.</em></p>
2527     *
2528     * @param action The Intent action, such as ACTION_VIEW.
2529     * @param uri The Intent data URI.
2530     * @param packageContext A Context of the application package implementing
2531     * this class.
2532     * @param cls The component class that is to be used for the intent.
2533     *
2534     * @see #Intent(String, android.net.Uri)
2535     * @see #Intent(Context, Class)
2536     * @see #setClass
2537     * @see #setComponent
2538     */
2539    public Intent(String action, Uri uri,
2540            Context packageContext, Class<?> cls) {
2541        mAction = action;
2542        mData = uri;
2543        mComponent = new ComponentName(packageContext, cls);
2544    }
2545
2546    /**
2547     * Call {@link #parseUri} with 0 flags.
2548     * @deprecated Use {@link #parseUri} instead.
2549     */
2550    @Deprecated
2551    public static Intent getIntent(String uri) throws URISyntaxException {
2552        return parseUri(uri, 0);
2553    }
2554
2555    /**
2556     * Create an intent from a URI.  This URI may encode the action,
2557     * category, and other intent fields, if it was returned by
2558     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2559     * will be the entire URI and its action will be ACTION_VIEW.
2560     *
2561     * <p>The URI given here must not be relative -- that is, it must include
2562     * the scheme and full path.
2563     *
2564     * @param uri The URI to turn into an Intent.
2565     * @param flags Additional processing flags.  Either 0 or
2566     * {@link #URI_INTENT_SCHEME}.
2567     *
2568     * @return Intent The newly created Intent object.
2569     *
2570     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2571     * it bad (as parsed by the Uri class) or the Intent data within the
2572     * URI is invalid.
2573     *
2574     * @see #toUri
2575     */
2576    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2577        int i = 0;
2578        try {
2579            // Validate intent scheme for if requested.
2580            if ((flags&URI_INTENT_SCHEME) != 0) {
2581                if (!uri.startsWith("intent:")) {
2582                    Intent intent = new Intent(ACTION_VIEW);
2583                    try {
2584                        intent.setData(Uri.parse(uri));
2585                    } catch (IllegalArgumentException e) {
2586                        throw new URISyntaxException(uri, e.getMessage());
2587                    }
2588                    return intent;
2589                }
2590            }
2591
2592            // simple case
2593            i = uri.lastIndexOf("#");
2594            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2595
2596            // old format Intent URI
2597            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2598
2599            // new format
2600            Intent intent = new Intent(ACTION_VIEW);
2601
2602            // fetch data part, if present
2603            String data = i >= 0 ? uri.substring(0, i) : null;
2604            String scheme = null;
2605            i += "#Intent;".length();
2606
2607            // loop over contents of Intent, all name=value;
2608            while (!uri.startsWith("end", i)) {
2609                int eq = uri.indexOf('=', i);
2610                int semi = uri.indexOf(';', eq);
2611                String value = Uri.decode(uri.substring(eq + 1, semi));
2612
2613                // action
2614                if (uri.startsWith("action=", i)) {
2615                    intent.mAction = value;
2616                }
2617
2618                // categories
2619                else if (uri.startsWith("category=", i)) {
2620                    intent.addCategory(value);
2621                }
2622
2623                // type
2624                else if (uri.startsWith("type=", i)) {
2625                    intent.mType = value;
2626                }
2627
2628                // launch  flags
2629                else if (uri.startsWith("launchFlags=", i)) {
2630                    intent.mFlags = Integer.decode(value).intValue();
2631                }
2632
2633                // package
2634                else if (uri.startsWith("package=", i)) {
2635                    intent.mPackage = value;
2636                }
2637
2638                // component
2639                else if (uri.startsWith("component=", i)) {
2640                    intent.mComponent = ComponentName.unflattenFromString(value);
2641                }
2642
2643                // scheme
2644                else if (uri.startsWith("scheme=", i)) {
2645                    scheme = value;
2646                }
2647
2648                // extra
2649                else {
2650                    String key = Uri.decode(uri.substring(i + 2, eq));
2651                    // create Bundle if it doesn't already exist
2652                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2653                    Bundle b = intent.mExtras;
2654                    // add EXTRA
2655                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2656                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2657                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2658                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2659                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2660                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2661                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2662                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2663                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2664                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2665                }
2666
2667                // move to the next item
2668                i = semi + 1;
2669            }
2670
2671            if (data != null) {
2672                if (data.startsWith("intent:")) {
2673                    data = data.substring(7);
2674                    if (scheme != null) {
2675                        data = scheme + ':' + data;
2676                    }
2677                }
2678
2679                if (data.length() > 0) {
2680                    try {
2681                        intent.mData = Uri.parse(data);
2682                    } catch (IllegalArgumentException e) {
2683                        throw new URISyntaxException(uri, e.getMessage());
2684                    }
2685                }
2686            }
2687
2688            return intent;
2689
2690        } catch (IndexOutOfBoundsException e) {
2691            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2692        }
2693    }
2694
2695    public static Intent getIntentOld(String uri) throws URISyntaxException {
2696        Intent intent;
2697
2698        int i = uri.lastIndexOf('#');
2699        if (i >= 0) {
2700            String action = null;
2701            final int intentFragmentStart = i;
2702            boolean isIntentFragment = false;
2703
2704            i++;
2705
2706            if (uri.regionMatches(i, "action(", 0, 7)) {
2707                isIntentFragment = true;
2708                i += 7;
2709                int j = uri.indexOf(')', i);
2710                action = uri.substring(i, j);
2711                i = j + 1;
2712            }
2713
2714            intent = new Intent(action);
2715
2716            if (uri.regionMatches(i, "categories(", 0, 11)) {
2717                isIntentFragment = true;
2718                i += 11;
2719                int j = uri.indexOf(')', i);
2720                while (i < j) {
2721                    int sep = uri.indexOf('!', i);
2722                    if (sep < 0) sep = j;
2723                    if (i < sep) {
2724                        intent.addCategory(uri.substring(i, sep));
2725                    }
2726                    i = sep + 1;
2727                }
2728                i = j + 1;
2729            }
2730
2731            if (uri.regionMatches(i, "type(", 0, 5)) {
2732                isIntentFragment = true;
2733                i += 5;
2734                int j = uri.indexOf(')', i);
2735                intent.mType = uri.substring(i, j);
2736                i = j + 1;
2737            }
2738
2739            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2740                isIntentFragment = true;
2741                i += 12;
2742                int j = uri.indexOf(')', i);
2743                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2744                i = j + 1;
2745            }
2746
2747            if (uri.regionMatches(i, "component(", 0, 10)) {
2748                isIntentFragment = true;
2749                i += 10;
2750                int j = uri.indexOf(')', i);
2751                int sep = uri.indexOf('!', i);
2752                if (sep >= 0 && sep < j) {
2753                    String pkg = uri.substring(i, sep);
2754                    String cls = uri.substring(sep + 1, j);
2755                    intent.mComponent = new ComponentName(pkg, cls);
2756                }
2757                i = j + 1;
2758            }
2759
2760            if (uri.regionMatches(i, "extras(", 0, 7)) {
2761                isIntentFragment = true;
2762                i += 7;
2763
2764                final int closeParen = uri.indexOf(')', i);
2765                if (closeParen == -1) throw new URISyntaxException(uri,
2766                        "EXTRA missing trailing ')'", i);
2767
2768                while (i < closeParen) {
2769                    // fetch the key value
2770                    int j = uri.indexOf('=', i);
2771                    if (j <= i + 1 || i >= closeParen) {
2772                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2773                    }
2774                    char type = uri.charAt(i);
2775                    i++;
2776                    String key = uri.substring(i, j);
2777                    i = j + 1;
2778
2779                    // get type-value
2780                    j = uri.indexOf('!', i);
2781                    if (j == -1 || j >= closeParen) j = closeParen;
2782                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2783                    String value = uri.substring(i, j);
2784                    i = j;
2785
2786                    // create Bundle if it doesn't already exist
2787                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2788
2789                    // add item to bundle
2790                    try {
2791                        switch (type) {
2792                            case 'S':
2793                                intent.mExtras.putString(key, Uri.decode(value));
2794                                break;
2795                            case 'B':
2796                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2797                                break;
2798                            case 'b':
2799                                intent.mExtras.putByte(key, Byte.parseByte(value));
2800                                break;
2801                            case 'c':
2802                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2803                                break;
2804                            case 'd':
2805                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2806                                break;
2807                            case 'f':
2808                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2809                                break;
2810                            case 'i':
2811                                intent.mExtras.putInt(key, Integer.parseInt(value));
2812                                break;
2813                            case 'l':
2814                                intent.mExtras.putLong(key, Long.parseLong(value));
2815                                break;
2816                            case 's':
2817                                intent.mExtras.putShort(key, Short.parseShort(value));
2818                                break;
2819                            default:
2820                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2821                        }
2822                    } catch (NumberFormatException e) {
2823                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2824                    }
2825
2826                    char ch = uri.charAt(i);
2827                    if (ch == ')') break;
2828                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2829                    i++;
2830                }
2831            }
2832
2833            if (isIntentFragment) {
2834                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
2835            } else {
2836                intent.mData = Uri.parse(uri);
2837            }
2838
2839            if (intent.mAction == null) {
2840                // By default, if no action is specified, then use VIEW.
2841                intent.mAction = ACTION_VIEW;
2842            }
2843
2844        } else {
2845            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2846        }
2847
2848        return intent;
2849    }
2850
2851    /**
2852     * Retrieve the general action to be performed, such as
2853     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2854     * the information in the intent should be interpreted -- most importantly,
2855     * what to do with the data returned by {@link #getData}.
2856     *
2857     * @return The action of this intent or null if none is specified.
2858     *
2859     * @see #setAction
2860     */
2861    public String getAction() {
2862        return mAction;
2863    }
2864
2865    /**
2866     * Retrieve data this intent is operating on.  This URI specifies the name
2867     * of the data; often it uses the content: scheme, specifying data in a
2868     * content provider.  Other schemes may be handled by specific activities,
2869     * such as http: by the web browser.
2870     *
2871     * @return The URI of the data this intent is targeting or null.
2872     *
2873     * @see #getScheme
2874     * @see #setData
2875     */
2876    public Uri getData() {
2877        return mData;
2878    }
2879
2880    /**
2881     * The same as {@link #getData()}, but returns the URI as an encoded
2882     * String.
2883     */
2884    public String getDataString() {
2885        return mData != null ? mData.toString() : null;
2886    }
2887
2888    /**
2889     * Return the scheme portion of the intent's data.  If the data is null or
2890     * does not include a scheme, null is returned.  Otherwise, the scheme
2891     * prefix without the final ':' is returned, i.e. "http".
2892     *
2893     * <p>This is the same as calling getData().getScheme() (and checking for
2894     * null data).
2895     *
2896     * @return The scheme of this intent.
2897     *
2898     * @see #getData
2899     */
2900    public String getScheme() {
2901        return mData != null ? mData.getScheme() : null;
2902    }
2903
2904    /**
2905     * Retrieve any explicit MIME type included in the intent.  This is usually
2906     * null, as the type is determined by the intent data.
2907     *
2908     * @return If a type was manually set, it is returned; else null is
2909     *         returned.
2910     *
2911     * @see #resolveType(ContentResolver)
2912     * @see #setType
2913     */
2914    public String getType() {
2915        return mType;
2916    }
2917
2918    /**
2919     * Return the MIME data type of this intent.  If the type field is
2920     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2921     * the type of that data is returned.  If neither fields are set, a null is
2922     * returned.
2923     *
2924     * @return The MIME type of this intent.
2925     *
2926     * @see #getType
2927     * @see #resolveType(ContentResolver)
2928     */
2929    public String resolveType(Context context) {
2930        return resolveType(context.getContentResolver());
2931    }
2932
2933    /**
2934     * Return the MIME data type of this intent.  If the type field is
2935     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2936     * the type of that data is returned.  If neither fields are set, a null is
2937     * returned.
2938     *
2939     * @param resolver A ContentResolver that can be used to determine the MIME
2940     *                 type of the intent's data.
2941     *
2942     * @return The MIME type of this intent.
2943     *
2944     * @see #getType
2945     * @see #resolveType(Context)
2946     */
2947    public String resolveType(ContentResolver resolver) {
2948        if (mType != null) {
2949            return mType;
2950        }
2951        if (mData != null) {
2952            if ("content".equals(mData.getScheme())) {
2953                return resolver.getType(mData);
2954            }
2955        }
2956        return null;
2957    }
2958
2959    /**
2960     * Return the MIME data type of this intent, only if it will be needed for
2961     * intent resolution.  This is not generally useful for application code;
2962     * it is used by the frameworks for communicating with back-end system
2963     * services.
2964     *
2965     * @param resolver A ContentResolver that can be used to determine the MIME
2966     *                 type of the intent's data.
2967     *
2968     * @return The MIME type of this intent, or null if it is unknown or not
2969     *         needed.
2970     */
2971    public String resolveTypeIfNeeded(ContentResolver resolver) {
2972        if (mComponent != null) {
2973            return mType;
2974        }
2975        return resolveType(resolver);
2976    }
2977
2978    /**
2979     * Check if an category exists in the intent.
2980     *
2981     * @param category The category to check.
2982     *
2983     * @return boolean True if the intent contains the category, else false.
2984     *
2985     * @see #getCategories
2986     * @see #addCategory
2987     */
2988    public boolean hasCategory(String category) {
2989        return mCategories != null && mCategories.contains(category);
2990    }
2991
2992    /**
2993     * Return the set of all categories in the intent.  If there are no categories,
2994     * returns NULL.
2995     *
2996     * @return Set The set of categories you can examine.  Do not modify!
2997     *
2998     * @see #hasCategory
2999     * @see #addCategory
3000     */
3001    public Set<String> getCategories() {
3002        return mCategories;
3003    }
3004
3005    /**
3006     * Sets the ClassLoader that will be used when unmarshalling
3007     * any Parcelable values from the extras of this Intent.
3008     *
3009     * @param loader a ClassLoader, or null to use the default loader
3010     * at the time of unmarshalling.
3011     */
3012    public void setExtrasClassLoader(ClassLoader loader) {
3013        if (mExtras != null) {
3014            mExtras.setClassLoader(loader);
3015        }
3016    }
3017
3018    /**
3019     * Returns true if an extra value is associated with the given name.
3020     * @param name the extra's name
3021     * @return true if the given extra is present.
3022     */
3023    public boolean hasExtra(String name) {
3024        return mExtras != null && mExtras.containsKey(name);
3025    }
3026
3027    /**
3028     * Returns true if the Intent's extras contain a parcelled file descriptor.
3029     * @return true if the Intent contains a parcelled file descriptor.
3030     */
3031    public boolean hasFileDescriptors() {
3032        return mExtras != null && mExtras.hasFileDescriptors();
3033    }
3034
3035    /**
3036     * Retrieve extended data from the intent.
3037     *
3038     * @param name The name of the desired item.
3039     *
3040     * @return the value of an item that previously added with putExtra()
3041     * or null if none was found.
3042     *
3043     * @deprecated
3044     * @hide
3045     */
3046    @Deprecated
3047    public Object getExtra(String name) {
3048        return getExtra(name, null);
3049    }
3050
3051    /**
3052     * Retrieve extended data from the intent.
3053     *
3054     * @param name The name of the desired item.
3055     * @param defaultValue the value to be returned if no value of the desired
3056     * type is stored with the given name.
3057     *
3058     * @return the value of an item that previously added with putExtra()
3059     * or the default value if none was found.
3060     *
3061     * @see #putExtra(String, boolean)
3062     */
3063    public boolean getBooleanExtra(String name, boolean defaultValue) {
3064        return mExtras == null ? defaultValue :
3065            mExtras.getBoolean(name, defaultValue);
3066    }
3067
3068    /**
3069     * Retrieve extended data from the intent.
3070     *
3071     * @param name The name of the desired item.
3072     * @param defaultValue the value to be returned if no value of the desired
3073     * type is stored with the given name.
3074     *
3075     * @return the value of an item that previously added with putExtra()
3076     * or the default value if none was found.
3077     *
3078     * @see #putExtra(String, byte)
3079     */
3080    public byte getByteExtra(String name, byte defaultValue) {
3081        return mExtras == null ? defaultValue :
3082            mExtras.getByte(name, defaultValue);
3083    }
3084
3085    /**
3086     * Retrieve extended data from the intent.
3087     *
3088     * @param name The name of the desired item.
3089     * @param defaultValue the value to be returned if no value of the desired
3090     * type is stored with the given name.
3091     *
3092     * @return the value of an item that previously added with putExtra()
3093     * or the default value if none was found.
3094     *
3095     * @see #putExtra(String, short)
3096     */
3097    public short getShortExtra(String name, short defaultValue) {
3098        return mExtras == null ? defaultValue :
3099            mExtras.getShort(name, defaultValue);
3100    }
3101
3102    /**
3103     * Retrieve extended data from the intent.
3104     *
3105     * @param name The name of the desired item.
3106     * @param defaultValue the value to be returned if no value of the desired
3107     * type is stored with the given name.
3108     *
3109     * @return the value of an item that previously added with putExtra()
3110     * or the default value if none was found.
3111     *
3112     * @see #putExtra(String, char)
3113     */
3114    public char getCharExtra(String name, char defaultValue) {
3115        return mExtras == null ? defaultValue :
3116            mExtras.getChar(name, defaultValue);
3117    }
3118
3119    /**
3120     * Retrieve extended data from the intent.
3121     *
3122     * @param name The name of the desired item.
3123     * @param defaultValue the value to be returned if no value of the desired
3124     * type is stored with the given name.
3125     *
3126     * @return the value of an item that previously added with putExtra()
3127     * or the default value if none was found.
3128     *
3129     * @see #putExtra(String, int)
3130     */
3131    public int getIntExtra(String name, int defaultValue) {
3132        return mExtras == null ? defaultValue :
3133            mExtras.getInt(name, defaultValue);
3134    }
3135
3136    /**
3137     * Retrieve extended data from the intent.
3138     *
3139     * @param name The name of the desired item.
3140     * @param defaultValue the value to be returned if no value of the desired
3141     * type is stored with the given name.
3142     *
3143     * @return the value of an item that previously added with putExtra()
3144     * or the default value if none was found.
3145     *
3146     * @see #putExtra(String, long)
3147     */
3148    public long getLongExtra(String name, long defaultValue) {
3149        return mExtras == null ? defaultValue :
3150            mExtras.getLong(name, defaultValue);
3151    }
3152
3153    /**
3154     * Retrieve extended data from the intent.
3155     *
3156     * @param name The name of the desired item.
3157     * @param defaultValue the value to be returned if no value of the desired
3158     * type is stored with the given name.
3159     *
3160     * @return the value of an item that previously added with putExtra(),
3161     * or the default value if no such item is present
3162     *
3163     * @see #putExtra(String, float)
3164     */
3165    public float getFloatExtra(String name, float defaultValue) {
3166        return mExtras == null ? defaultValue :
3167            mExtras.getFloat(name, defaultValue);
3168    }
3169
3170    /**
3171     * Retrieve extended data from the intent.
3172     *
3173     * @param name The name of the desired item.
3174     * @param defaultValue the value to be returned if no value of the desired
3175     * type is stored with the given name.
3176     *
3177     * @return the value of an item that previously added with putExtra()
3178     * or the default value if none was found.
3179     *
3180     * @see #putExtra(String, double)
3181     */
3182    public double getDoubleExtra(String name, double defaultValue) {
3183        return mExtras == null ? defaultValue :
3184            mExtras.getDouble(name, defaultValue);
3185    }
3186
3187    /**
3188     * Retrieve extended data from the intent.
3189     *
3190     * @param name The name of the desired item.
3191     *
3192     * @return the value of an item that previously added with putExtra()
3193     * or null if no String value was found.
3194     *
3195     * @see #putExtra(String, String)
3196     */
3197    public String getStringExtra(String name) {
3198        return mExtras == null ? null : mExtras.getString(name);
3199    }
3200
3201    /**
3202     * Retrieve extended data from the intent.
3203     *
3204     * @param name The name of the desired item.
3205     *
3206     * @return the value of an item that previously added with putExtra()
3207     * or null if no CharSequence value was found.
3208     *
3209     * @see #putExtra(String, CharSequence)
3210     */
3211    public CharSequence getCharSequenceExtra(String name) {
3212        return mExtras == null ? null : mExtras.getCharSequence(name);
3213    }
3214
3215    /**
3216     * Retrieve extended data from the intent.
3217     *
3218     * @param name The name of the desired item.
3219     *
3220     * @return the value of an item that previously added with putExtra()
3221     * or null if no Parcelable value was found.
3222     *
3223     * @see #putExtra(String, Parcelable)
3224     */
3225    public <T extends Parcelable> T getParcelableExtra(String name) {
3226        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3227    }
3228
3229    /**
3230     * Retrieve extended data from the intent.
3231     *
3232     * @param name The name of the desired item.
3233     *
3234     * @return the value of an item that previously added with putExtra()
3235     * or null if no Parcelable[] value was found.
3236     *
3237     * @see #putExtra(String, Parcelable[])
3238     */
3239    public Parcelable[] getParcelableArrayExtra(String name) {
3240        return mExtras == null ? null : mExtras.getParcelableArray(name);
3241    }
3242
3243    /**
3244     * Retrieve extended data from the intent.
3245     *
3246     * @param name The name of the desired item.
3247     *
3248     * @return the value of an item that previously added with putExtra()
3249     * or null if no ArrayList<Parcelable> value was found.
3250     *
3251     * @see #putParcelableArrayListExtra(String, ArrayList)
3252     */
3253    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3254        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3255    }
3256
3257    /**
3258     * Retrieve extended data from the intent.
3259     *
3260     * @param name The name of the desired item.
3261     *
3262     * @return the value of an item that previously added with putExtra()
3263     * or null if no Serializable value was found.
3264     *
3265     * @see #putExtra(String, Serializable)
3266     */
3267    public Serializable getSerializableExtra(String name) {
3268        return mExtras == null ? null : mExtras.getSerializable(name);
3269    }
3270
3271    /**
3272     * Retrieve extended data from the intent.
3273     *
3274     * @param name The name of the desired item.
3275     *
3276     * @return the value of an item that previously added with putExtra()
3277     * or null if no ArrayList<Integer> value was found.
3278     *
3279     * @see #putIntegerArrayListExtra(String, ArrayList)
3280     */
3281    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3282        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3283    }
3284
3285    /**
3286     * Retrieve extended data from the intent.
3287     *
3288     * @param name The name of the desired item.
3289     *
3290     * @return the value of an item that previously added with putExtra()
3291     * or null if no ArrayList<String> value was found.
3292     *
3293     * @see #putStringArrayListExtra(String, ArrayList)
3294     */
3295    public ArrayList<String> getStringArrayListExtra(String name) {
3296        return mExtras == null ? null : mExtras.getStringArrayList(name);
3297    }
3298
3299    /**
3300     * Retrieve extended data from the intent.
3301     *
3302     * @param name The name of the desired item.
3303     *
3304     * @return the value of an item that previously added with putExtra()
3305     * or null if no boolean array value was found.
3306     *
3307     * @see #putExtra(String, boolean[])
3308     */
3309    public boolean[] getBooleanArrayExtra(String name) {
3310        return mExtras == null ? null : mExtras.getBooleanArray(name);
3311    }
3312
3313    /**
3314     * Retrieve extended data from the intent.
3315     *
3316     * @param name The name of the desired item.
3317     *
3318     * @return the value of an item that previously added with putExtra()
3319     * or null if no byte array value was found.
3320     *
3321     * @see #putExtra(String, byte[])
3322     */
3323    public byte[] getByteArrayExtra(String name) {
3324        return mExtras == null ? null : mExtras.getByteArray(name);
3325    }
3326
3327    /**
3328     * Retrieve extended data from the intent.
3329     *
3330     * @param name The name of the desired item.
3331     *
3332     * @return the value of an item that previously added with putExtra()
3333     * or null if no short array value was found.
3334     *
3335     * @see #putExtra(String, short[])
3336     */
3337    public short[] getShortArrayExtra(String name) {
3338        return mExtras == null ? null : mExtras.getShortArray(name);
3339    }
3340
3341    /**
3342     * Retrieve extended data from the intent.
3343     *
3344     * @param name The name of the desired item.
3345     *
3346     * @return the value of an item that previously added with putExtra()
3347     * or null if no char array value was found.
3348     *
3349     * @see #putExtra(String, char[])
3350     */
3351    public char[] getCharArrayExtra(String name) {
3352        return mExtras == null ? null : mExtras.getCharArray(name);
3353    }
3354
3355    /**
3356     * Retrieve extended data from the intent.
3357     *
3358     * @param name The name of the desired item.
3359     *
3360     * @return the value of an item that previously added with putExtra()
3361     * or null if no int array value was found.
3362     *
3363     * @see #putExtra(String, int[])
3364     */
3365    public int[] getIntArrayExtra(String name) {
3366        return mExtras == null ? null : mExtras.getIntArray(name);
3367    }
3368
3369    /**
3370     * Retrieve extended data from the intent.
3371     *
3372     * @param name The name of the desired item.
3373     *
3374     * @return the value of an item that previously added with putExtra()
3375     * or null if no long array value was found.
3376     *
3377     * @see #putExtra(String, long[])
3378     */
3379    public long[] getLongArrayExtra(String name) {
3380        return mExtras == null ? null : mExtras.getLongArray(name);
3381    }
3382
3383    /**
3384     * Retrieve extended data from the intent.
3385     *
3386     * @param name The name of the desired item.
3387     *
3388     * @return the value of an item that previously added with putExtra()
3389     * or null if no float array value was found.
3390     *
3391     * @see #putExtra(String, float[])
3392     */
3393    public float[] getFloatArrayExtra(String name) {
3394        return mExtras == null ? null : mExtras.getFloatArray(name);
3395    }
3396
3397    /**
3398     * Retrieve extended data from the intent.
3399     *
3400     * @param name The name of the desired item.
3401     *
3402     * @return the value of an item that previously added with putExtra()
3403     * or null if no double array value was found.
3404     *
3405     * @see #putExtra(String, double[])
3406     */
3407    public double[] getDoubleArrayExtra(String name) {
3408        return mExtras == null ? null : mExtras.getDoubleArray(name);
3409    }
3410
3411    /**
3412     * Retrieve extended data from the intent.
3413     *
3414     * @param name The name of the desired item.
3415     *
3416     * @return the value of an item that previously added with putExtra()
3417     * or null if no String array value was found.
3418     *
3419     * @see #putExtra(String, String[])
3420     */
3421    public String[] getStringArrayExtra(String name) {
3422        return mExtras == null ? null : mExtras.getStringArray(name);
3423    }
3424
3425    /**
3426     * Retrieve extended data from the intent.
3427     *
3428     * @param name The name of the desired item.
3429     *
3430     * @return the value of an item that previously added with putExtra()
3431     * or null if no Bundle value was found.
3432     *
3433     * @see #putExtra(String, Bundle)
3434     */
3435    public Bundle getBundleExtra(String name) {
3436        return mExtras == null ? null : mExtras.getBundle(name);
3437    }
3438
3439    /**
3440     * Retrieve extended data from the intent.
3441     *
3442     * @param name The name of the desired item.
3443     *
3444     * @return the value of an item that previously added with putExtra()
3445     * or null if no IBinder value was found.
3446     *
3447     * @see #putExtra(String, IBinder)
3448     *
3449     * @deprecated
3450     * @hide
3451     */
3452    @Deprecated
3453    public IBinder getIBinderExtra(String name) {
3454        return mExtras == null ? null : mExtras.getIBinder(name);
3455    }
3456
3457    /**
3458     * Retrieve extended data from the intent.
3459     *
3460     * @param name The name of the desired item.
3461     * @param defaultValue The default value to return in case no item is
3462     * associated with the key 'name'
3463     *
3464     * @return the value of an item that previously added with putExtra()
3465     * or defaultValue if none was found.
3466     *
3467     * @see #putExtra
3468     *
3469     * @deprecated
3470     * @hide
3471     */
3472    @Deprecated
3473    public Object getExtra(String name, Object defaultValue) {
3474        Object result = defaultValue;
3475        if (mExtras != null) {
3476            Object result2 = mExtras.get(name);
3477            if (result2 != null) {
3478                result = result2;
3479            }
3480        }
3481
3482        return result;
3483    }
3484
3485    /**
3486     * Retrieves a map of extended data from the intent.
3487     *
3488     * @return the map of all extras previously added with putExtra(),
3489     * or null if none have been added.
3490     */
3491    public Bundle getExtras() {
3492        return (mExtras != null)
3493                ? new Bundle(mExtras)
3494                : null;
3495    }
3496
3497    /**
3498     * Retrieve any special flags associated with this intent.  You will
3499     * normally just set them with {@link #setFlags} and let the system
3500     * take the appropriate action with them.
3501     *
3502     * @return int The currently set flags.
3503     *
3504     * @see #setFlags
3505     */
3506    public int getFlags() {
3507        return mFlags;
3508    }
3509
3510    /**
3511     * Retrieve the application package name this Intent is limited to.  When
3512     * resolving an Intent, if non-null this limits the resolution to only
3513     * components in the given application package.
3514     *
3515     * @return The name of the application package for the Intent.
3516     *
3517     * @see #resolveActivity
3518     * @see #setPackage
3519     */
3520    public String getPackage() {
3521        return mPackage;
3522    }
3523
3524    /**
3525     * Retrieve the concrete component associated with the intent.  When receiving
3526     * an intent, this is the component that was found to best handle it (that is,
3527     * yourself) and will always be non-null; in all other cases it will be
3528     * null unless explicitly set.
3529     *
3530     * @return The name of the application component to handle the intent.
3531     *
3532     * @see #resolveActivity
3533     * @see #setComponent
3534     */
3535    public ComponentName getComponent() {
3536        return mComponent;
3537    }
3538
3539    /**
3540     * Return the Activity component that should be used to handle this intent.
3541     * The appropriate component is determined based on the information in the
3542     * intent, evaluated as follows:
3543     *
3544     * <p>If {@link #getComponent} returns an explicit class, that is returned
3545     * without any further consideration.
3546     *
3547     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3548     * category to be considered.
3549     *
3550     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3551     * action.
3552     *
3553     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3554     * this type.
3555     *
3556     * <p>If {@link #addCategory} has added any categories, the activity must
3557     * handle ALL of the categories specified.
3558     *
3559     * <p>If {@link #getPackage} is non-NULL, only activity components in
3560     * that application package will be considered.
3561     *
3562     * <p>If there are no activities that satisfy all of these conditions, a
3563     * null string is returned.
3564     *
3565     * <p>If multiple activities are found to satisfy the intent, the one with
3566     * the highest priority will be used.  If there are multiple activities
3567     * with the same priority, the system will either pick the best activity
3568     * based on user preference, or resolve to a system class that will allow
3569     * the user to pick an activity and forward from there.
3570     *
3571     * <p>This method is implemented simply by calling
3572     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3573     * true.</p>
3574     * <p> This API is called for you as part of starting an activity from an
3575     * intent.  You do not normally need to call it yourself.</p>
3576     *
3577     * @param pm The package manager with which to resolve the Intent.
3578     *
3579     * @return Name of the component implementing an activity that can
3580     *         display the intent.
3581     *
3582     * @see #setComponent
3583     * @see #getComponent
3584     * @see #resolveActivityInfo
3585     */
3586    public ComponentName resolveActivity(PackageManager pm) {
3587        if (mComponent != null) {
3588            return mComponent;
3589        }
3590
3591        ResolveInfo info = pm.resolveActivity(
3592            this, PackageManager.MATCH_DEFAULT_ONLY);
3593        if (info != null) {
3594            return new ComponentName(
3595                    info.activityInfo.applicationInfo.packageName,
3596                    info.activityInfo.name);
3597        }
3598
3599        return null;
3600    }
3601
3602    /**
3603     * Resolve the Intent into an {@link ActivityInfo}
3604     * describing the activity that should execute the intent.  Resolution
3605     * follows the same rules as described for {@link #resolveActivity}, but
3606     * you get back the completely information about the resolved activity
3607     * instead of just its class name.
3608     *
3609     * @param pm The package manager with which to resolve the Intent.
3610     * @param flags Addition information to retrieve as per
3611     * {@link PackageManager#getActivityInfo(ComponentName, int)
3612     * PackageManager.getActivityInfo()}.
3613     *
3614     * @return PackageManager.ActivityInfo
3615     *
3616     * @see #resolveActivity
3617     */
3618    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3619        ActivityInfo ai = null;
3620        if (mComponent != null) {
3621            try {
3622                ai = pm.getActivityInfo(mComponent, flags);
3623            } catch (PackageManager.NameNotFoundException e) {
3624                // ignore
3625            }
3626        } else {
3627            ResolveInfo info = pm.resolveActivity(
3628                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
3629            if (info != null) {
3630                ai = info.activityInfo;
3631            }
3632        }
3633
3634        return ai;
3635    }
3636
3637    /**
3638     * Set the general action to be performed.
3639     *
3640     * @param action An action name, such as ACTION_VIEW.  Application-specific
3641     *               actions should be prefixed with the vendor's package name.
3642     *
3643     * @return Returns the same Intent object, for chaining multiple calls
3644     * into a single statement.
3645     *
3646     * @see #getAction
3647     */
3648    public Intent setAction(String action) {
3649        mAction = action;
3650        return this;
3651    }
3652
3653    /**
3654     * Set the data this intent is operating on.  This method automatically
3655     * clears any type that was previously set by {@link #setType}.
3656     *
3657     * <p><em>Note: scheme and host name matching in the Android framework is
3658     * case-sensitive, unlike the formal RFC.  As a result,
3659     * you should always ensure that you write your Uri with these elements
3660     * using lower case letters, and normalize any Uris you receive from
3661     * outside of Android to ensure the scheme and host is lower case.</em></p>
3662     *
3663     * @param data The URI of the data this intent is now targeting.
3664     *
3665     * @return Returns the same Intent object, for chaining multiple calls
3666     * into a single statement.
3667     *
3668     * @see #getData
3669     * @see #setType
3670     * @see #setDataAndType
3671     */
3672    public Intent setData(Uri data) {
3673        mData = data;
3674        mType = null;
3675        return this;
3676    }
3677
3678    /**
3679     * Set an explicit MIME data type.  This is used to create intents that
3680     * only specify a type and not data, for example to indicate the type of
3681     * data to return.  This method automatically clears any data that was
3682     * previously set by {@link #setData}.
3683     *
3684     * <p><em>Note: MIME type matching in the Android framework is
3685     * case-sensitive, unlike formal RFC MIME types.  As a result,
3686     * you should always write your MIME types with lower case letters,
3687     * and any MIME types you receive from outside of Android should be
3688     * converted to lower case before supplying them here.</em></p>
3689     *
3690     * @param type The MIME type of the data being handled by this intent.
3691     *
3692     * @return Returns the same Intent object, for chaining multiple calls
3693     * into a single statement.
3694     *
3695     * @see #getType
3696     * @see #setData
3697     * @see #setDataAndType
3698     */
3699    public Intent setType(String type) {
3700        mData = null;
3701        mType = type;
3702        return this;
3703    }
3704
3705    /**
3706     * (Usually optional) Set the data for the intent along with an explicit
3707     * MIME data type.  This method should very rarely be used -- it allows you
3708     * to override the MIME type that would ordinarily be inferred from the
3709     * data with your own type given here.
3710     *
3711     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
3712     * Android framework is case-sensitive, unlike the formal RFC definitions.
3713     * As a result, you should always write these elements with lower case letters,
3714     * and normalize any MIME types or Uris you receive from
3715     * outside of Android to ensure these elements are lower case before
3716     * supplying them here.</em></p>
3717     *
3718     * @param data The URI of the data this intent is now targeting.
3719     * @param type The MIME type of the data being handled by this intent.
3720     *
3721     * @return Returns the same Intent object, for chaining multiple calls
3722     * into a single statement.
3723     *
3724     * @see #setData
3725     * @see #setType
3726     */
3727    public Intent setDataAndType(Uri data, String type) {
3728        mData = data;
3729        mType = type;
3730        return this;
3731    }
3732
3733    /**
3734     * Add a new category to the intent.  Categories provide additional detail
3735     * about the action the intent is perform.  When resolving an intent, only
3736     * activities that provide <em>all</em> of the requested categories will be
3737     * used.
3738     *
3739     * @param category The desired category.  This can be either one of the
3740     *               predefined Intent categories, or a custom category in your own
3741     *               namespace.
3742     *
3743     * @return Returns the same Intent object, for chaining multiple calls
3744     * into a single statement.
3745     *
3746     * @see #hasCategory
3747     * @see #removeCategory
3748     */
3749    public Intent addCategory(String category) {
3750        if (mCategories == null) {
3751            mCategories = new HashSet<String>();
3752        }
3753        mCategories.add(category);
3754        return this;
3755    }
3756
3757    /**
3758     * Remove an category from an intent.
3759     *
3760     * @param category The category to remove.
3761     *
3762     * @see #addCategory
3763     */
3764    public void removeCategory(String category) {
3765        if (mCategories != null) {
3766            mCategories.remove(category);
3767            if (mCategories.size() == 0) {
3768                mCategories = null;
3769            }
3770        }
3771    }
3772
3773    /**
3774     * Add extended data to the intent.  The name must include a package
3775     * prefix, for example the app com.android.contacts would use names
3776     * like "com.android.contacts.ShowAll".
3777     *
3778     * @param name The name of the extra data, with package prefix.
3779     * @param value The boolean data value.
3780     *
3781     * @return Returns the same Intent object, for chaining multiple calls
3782     * into a single statement.
3783     *
3784     * @see #putExtras
3785     * @see #removeExtra
3786     * @see #getBooleanExtra(String, boolean)
3787     */
3788    public Intent putExtra(String name, boolean value) {
3789        if (mExtras == null) {
3790            mExtras = new Bundle();
3791        }
3792        mExtras.putBoolean(name, value);
3793        return this;
3794    }
3795
3796    /**
3797     * Add extended data to the intent.  The name must include a package
3798     * prefix, for example the app com.android.contacts would use names
3799     * like "com.android.contacts.ShowAll".
3800     *
3801     * @param name The name of the extra data, with package prefix.
3802     * @param value The byte data value.
3803     *
3804     * @return Returns the same Intent object, for chaining multiple calls
3805     * into a single statement.
3806     *
3807     * @see #putExtras
3808     * @see #removeExtra
3809     * @see #getByteExtra(String, byte)
3810     */
3811    public Intent putExtra(String name, byte value) {
3812        if (mExtras == null) {
3813            mExtras = new Bundle();
3814        }
3815        mExtras.putByte(name, value);
3816        return this;
3817    }
3818
3819    /**
3820     * Add extended data to the intent.  The name must include a package
3821     * prefix, for example the app com.android.contacts would use names
3822     * like "com.android.contacts.ShowAll".
3823     *
3824     * @param name The name of the extra data, with package prefix.
3825     * @param value The char data value.
3826     *
3827     * @return Returns the same Intent object, for chaining multiple calls
3828     * into a single statement.
3829     *
3830     * @see #putExtras
3831     * @see #removeExtra
3832     * @see #getCharExtra(String, char)
3833     */
3834    public Intent putExtra(String name, char value) {
3835        if (mExtras == null) {
3836            mExtras = new Bundle();
3837        }
3838        mExtras.putChar(name, value);
3839        return this;
3840    }
3841
3842    /**
3843     * Add extended data to the intent.  The name must include a package
3844     * prefix, for example the app com.android.contacts would use names
3845     * like "com.android.contacts.ShowAll".
3846     *
3847     * @param name The name of the extra data, with package prefix.
3848     * @param value The short data value.
3849     *
3850     * @return Returns the same Intent object, for chaining multiple calls
3851     * into a single statement.
3852     *
3853     * @see #putExtras
3854     * @see #removeExtra
3855     * @see #getShortExtra(String, short)
3856     */
3857    public Intent putExtra(String name, short value) {
3858        if (mExtras == null) {
3859            mExtras = new Bundle();
3860        }
3861        mExtras.putShort(name, value);
3862        return this;
3863    }
3864
3865    /**
3866     * Add extended data to the intent.  The name must include a package
3867     * prefix, for example the app com.android.contacts would use names
3868     * like "com.android.contacts.ShowAll".
3869     *
3870     * @param name The name of the extra data, with package prefix.
3871     * @param value The integer data value.
3872     *
3873     * @return Returns the same Intent object, for chaining multiple calls
3874     * into a single statement.
3875     *
3876     * @see #putExtras
3877     * @see #removeExtra
3878     * @see #getIntExtra(String, int)
3879     */
3880    public Intent putExtra(String name, int value) {
3881        if (mExtras == null) {
3882            mExtras = new Bundle();
3883        }
3884        mExtras.putInt(name, value);
3885        return this;
3886    }
3887
3888    /**
3889     * Add extended data to the intent.  The name must include a package
3890     * prefix, for example the app com.android.contacts would use names
3891     * like "com.android.contacts.ShowAll".
3892     *
3893     * @param name The name of the extra data, with package prefix.
3894     * @param value The long data value.
3895     *
3896     * @return Returns the same Intent object, for chaining multiple calls
3897     * into a single statement.
3898     *
3899     * @see #putExtras
3900     * @see #removeExtra
3901     * @see #getLongExtra(String, long)
3902     */
3903    public Intent putExtra(String name, long value) {
3904        if (mExtras == null) {
3905            mExtras = new Bundle();
3906        }
3907        mExtras.putLong(name, value);
3908        return this;
3909    }
3910
3911    /**
3912     * Add extended data to the intent.  The name must include a package
3913     * prefix, for example the app com.android.contacts would use names
3914     * like "com.android.contacts.ShowAll".
3915     *
3916     * @param name The name of the extra data, with package prefix.
3917     * @param value The float data value.
3918     *
3919     * @return Returns the same Intent object, for chaining multiple calls
3920     * into a single statement.
3921     *
3922     * @see #putExtras
3923     * @see #removeExtra
3924     * @see #getFloatExtra(String, float)
3925     */
3926    public Intent putExtra(String name, float value) {
3927        if (mExtras == null) {
3928            mExtras = new Bundle();
3929        }
3930        mExtras.putFloat(name, value);
3931        return this;
3932    }
3933
3934    /**
3935     * Add extended data to the intent.  The name must include a package
3936     * prefix, for example the app com.android.contacts would use names
3937     * like "com.android.contacts.ShowAll".
3938     *
3939     * @param name The name of the extra data, with package prefix.
3940     * @param value The double data value.
3941     *
3942     * @return Returns the same Intent object, for chaining multiple calls
3943     * into a single statement.
3944     *
3945     * @see #putExtras
3946     * @see #removeExtra
3947     * @see #getDoubleExtra(String, double)
3948     */
3949    public Intent putExtra(String name, double value) {
3950        if (mExtras == null) {
3951            mExtras = new Bundle();
3952        }
3953        mExtras.putDouble(name, value);
3954        return this;
3955    }
3956
3957    /**
3958     * Add extended data to the intent.  The name must include a package
3959     * prefix, for example the app com.android.contacts would use names
3960     * like "com.android.contacts.ShowAll".
3961     *
3962     * @param name The name of the extra data, with package prefix.
3963     * @param value The String data value.
3964     *
3965     * @return Returns the same Intent object, for chaining multiple calls
3966     * into a single statement.
3967     *
3968     * @see #putExtras
3969     * @see #removeExtra
3970     * @see #getStringExtra(String)
3971     */
3972    public Intent putExtra(String name, String value) {
3973        if (mExtras == null) {
3974            mExtras = new Bundle();
3975        }
3976        mExtras.putString(name, value);
3977        return this;
3978    }
3979
3980    /**
3981     * Add extended data to the intent.  The name must include a package
3982     * prefix, for example the app com.android.contacts would use names
3983     * like "com.android.contacts.ShowAll".
3984     *
3985     * @param name The name of the extra data, with package prefix.
3986     * @param value The CharSequence data value.
3987     *
3988     * @return Returns the same Intent object, for chaining multiple calls
3989     * into a single statement.
3990     *
3991     * @see #putExtras
3992     * @see #removeExtra
3993     * @see #getCharSequenceExtra(String)
3994     */
3995    public Intent putExtra(String name, CharSequence value) {
3996        if (mExtras == null) {
3997            mExtras = new Bundle();
3998        }
3999        mExtras.putCharSequence(name, value);
4000        return this;
4001    }
4002
4003    /**
4004     * Add extended data to the intent.  The name must include a package
4005     * prefix, for example the app com.android.contacts would use names
4006     * like "com.android.contacts.ShowAll".
4007     *
4008     * @param name The name of the extra data, with package prefix.
4009     * @param value The Parcelable data value.
4010     *
4011     * @return Returns the same Intent object, for chaining multiple calls
4012     * into a single statement.
4013     *
4014     * @see #putExtras
4015     * @see #removeExtra
4016     * @see #getParcelableExtra(String)
4017     */
4018    public Intent putExtra(String name, Parcelable value) {
4019        if (mExtras == null) {
4020            mExtras = new Bundle();
4021        }
4022        mExtras.putParcelable(name, value);
4023        return this;
4024    }
4025
4026    /**
4027     * Add extended data to the intent.  The name must include a package
4028     * prefix, for example the app com.android.contacts would use names
4029     * like "com.android.contacts.ShowAll".
4030     *
4031     * @param name The name of the extra data, with package prefix.
4032     * @param value The Parcelable[] data value.
4033     *
4034     * @return Returns the same Intent object, for chaining multiple calls
4035     * into a single statement.
4036     *
4037     * @see #putExtras
4038     * @see #removeExtra
4039     * @see #getParcelableArrayExtra(String)
4040     */
4041    public Intent putExtra(String name, Parcelable[] value) {
4042        if (mExtras == null) {
4043            mExtras = new Bundle();
4044        }
4045        mExtras.putParcelableArray(name, value);
4046        return this;
4047    }
4048
4049    /**
4050     * Add extended data to the intent.  The name must include a package
4051     * prefix, for example the app com.android.contacts would use names
4052     * like "com.android.contacts.ShowAll".
4053     *
4054     * @param name The name of the extra data, with package prefix.
4055     * @param value The ArrayList<Parcelable> data value.
4056     *
4057     * @return Returns the same Intent object, for chaining multiple calls
4058     * into a single statement.
4059     *
4060     * @see #putExtras
4061     * @see #removeExtra
4062     * @see #getParcelableArrayListExtra(String)
4063     */
4064    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
4065        if (mExtras == null) {
4066            mExtras = new Bundle();
4067        }
4068        mExtras.putParcelableArrayList(name, value);
4069        return this;
4070    }
4071
4072    /**
4073     * Add extended data to the intent.  The name must include a package
4074     * prefix, for example the app com.android.contacts would use names
4075     * like "com.android.contacts.ShowAll".
4076     *
4077     * @param name The name of the extra data, with package prefix.
4078     * @param value The ArrayList<Integer> data value.
4079     *
4080     * @return Returns the same Intent object, for chaining multiple calls
4081     * into a single statement.
4082     *
4083     * @see #putExtras
4084     * @see #removeExtra
4085     * @see #getIntegerArrayListExtra(String)
4086     */
4087    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
4088        if (mExtras == null) {
4089            mExtras = new Bundle();
4090        }
4091        mExtras.putIntegerArrayList(name, value);
4092        return this;
4093    }
4094
4095    /**
4096     * Add extended data to the intent.  The name must include a package
4097     * prefix, for example the app com.android.contacts would use names
4098     * like "com.android.contacts.ShowAll".
4099     *
4100     * @param name The name of the extra data, with package prefix.
4101     * @param value The ArrayList<String> data value.
4102     *
4103     * @return Returns the same Intent object, for chaining multiple calls
4104     * into a single statement.
4105     *
4106     * @see #putExtras
4107     * @see #removeExtra
4108     * @see #getStringArrayListExtra(String)
4109     */
4110    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
4111        if (mExtras == null) {
4112            mExtras = new Bundle();
4113        }
4114        mExtras.putStringArrayList(name, value);
4115        return this;
4116    }
4117
4118    /**
4119     * Add extended data to the intent.  The name must include a package
4120     * prefix, for example the app com.android.contacts would use names
4121     * like "com.android.contacts.ShowAll".
4122     *
4123     * @param name The name of the extra data, with package prefix.
4124     * @param value The Serializable data value.
4125     *
4126     * @return Returns the same Intent object, for chaining multiple calls
4127     * into a single statement.
4128     *
4129     * @see #putExtras
4130     * @see #removeExtra
4131     * @see #getSerializableExtra(String)
4132     */
4133    public Intent putExtra(String name, Serializable value) {
4134        if (mExtras == null) {
4135            mExtras = new Bundle();
4136        }
4137        mExtras.putSerializable(name, value);
4138        return this;
4139    }
4140
4141    /**
4142     * Add extended data to the intent.  The name must include a package
4143     * prefix, for example the app com.android.contacts would use names
4144     * like "com.android.contacts.ShowAll".
4145     *
4146     * @param name The name of the extra data, with package prefix.
4147     * @param value The boolean array data value.
4148     *
4149     * @return Returns the same Intent object, for chaining multiple calls
4150     * into a single statement.
4151     *
4152     * @see #putExtras
4153     * @see #removeExtra
4154     * @see #getBooleanArrayExtra(String)
4155     */
4156    public Intent putExtra(String name, boolean[] value) {
4157        if (mExtras == null) {
4158            mExtras = new Bundle();
4159        }
4160        mExtras.putBooleanArray(name, value);
4161        return this;
4162    }
4163
4164    /**
4165     * Add extended data to the intent.  The name must include a package
4166     * prefix, for example the app com.android.contacts would use names
4167     * like "com.android.contacts.ShowAll".
4168     *
4169     * @param name The name of the extra data, with package prefix.
4170     * @param value The byte array data value.
4171     *
4172     * @return Returns the same Intent object, for chaining multiple calls
4173     * into a single statement.
4174     *
4175     * @see #putExtras
4176     * @see #removeExtra
4177     * @see #getByteArrayExtra(String)
4178     */
4179    public Intent putExtra(String name, byte[] value) {
4180        if (mExtras == null) {
4181            mExtras = new Bundle();
4182        }
4183        mExtras.putByteArray(name, value);
4184        return this;
4185    }
4186
4187    /**
4188     * Add extended data to the intent.  The name must include a package
4189     * prefix, for example the app com.android.contacts would use names
4190     * like "com.android.contacts.ShowAll".
4191     *
4192     * @param name The name of the extra data, with package prefix.
4193     * @param value The short array data value.
4194     *
4195     * @return Returns the same Intent object, for chaining multiple calls
4196     * into a single statement.
4197     *
4198     * @see #putExtras
4199     * @see #removeExtra
4200     * @see #getShortArrayExtra(String)
4201     */
4202    public Intent putExtra(String name, short[] value) {
4203        if (mExtras == null) {
4204            mExtras = new Bundle();
4205        }
4206        mExtras.putShortArray(name, value);
4207        return this;
4208    }
4209
4210    /**
4211     * Add extended data to the intent.  The name must include a package
4212     * prefix, for example the app com.android.contacts would use names
4213     * like "com.android.contacts.ShowAll".
4214     *
4215     * @param name The name of the extra data, with package prefix.
4216     * @param value The char array data value.
4217     *
4218     * @return Returns the same Intent object, for chaining multiple calls
4219     * into a single statement.
4220     *
4221     * @see #putExtras
4222     * @see #removeExtra
4223     * @see #getCharArrayExtra(String)
4224     */
4225    public Intent putExtra(String name, char[] value) {
4226        if (mExtras == null) {
4227            mExtras = new Bundle();
4228        }
4229        mExtras.putCharArray(name, value);
4230        return this;
4231    }
4232
4233    /**
4234     * Add extended data to the intent.  The name must include a package
4235     * prefix, for example the app com.android.contacts would use names
4236     * like "com.android.contacts.ShowAll".
4237     *
4238     * @param name The name of the extra data, with package prefix.
4239     * @param value The int array data value.
4240     *
4241     * @return Returns the same Intent object, for chaining multiple calls
4242     * into a single statement.
4243     *
4244     * @see #putExtras
4245     * @see #removeExtra
4246     * @see #getIntArrayExtra(String)
4247     */
4248    public Intent putExtra(String name, int[] value) {
4249        if (mExtras == null) {
4250            mExtras = new Bundle();
4251        }
4252        mExtras.putIntArray(name, value);
4253        return this;
4254    }
4255
4256    /**
4257     * Add extended data to the intent.  The name must include a package
4258     * prefix, for example the app com.android.contacts would use names
4259     * like "com.android.contacts.ShowAll".
4260     *
4261     * @param name The name of the extra data, with package prefix.
4262     * @param value The byte array data value.
4263     *
4264     * @return Returns the same Intent object, for chaining multiple calls
4265     * into a single statement.
4266     *
4267     * @see #putExtras
4268     * @see #removeExtra
4269     * @see #getLongArrayExtra(String)
4270     */
4271    public Intent putExtra(String name, long[] value) {
4272        if (mExtras == null) {
4273            mExtras = new Bundle();
4274        }
4275        mExtras.putLongArray(name, value);
4276        return this;
4277    }
4278
4279    /**
4280     * Add extended data to the intent.  The name must include a package
4281     * prefix, for example the app com.android.contacts would use names
4282     * like "com.android.contacts.ShowAll".
4283     *
4284     * @param name The name of the extra data, with package prefix.
4285     * @param value The float array data value.
4286     *
4287     * @return Returns the same Intent object, for chaining multiple calls
4288     * into a single statement.
4289     *
4290     * @see #putExtras
4291     * @see #removeExtra
4292     * @see #getFloatArrayExtra(String)
4293     */
4294    public Intent putExtra(String name, float[] value) {
4295        if (mExtras == null) {
4296            mExtras = new Bundle();
4297        }
4298        mExtras.putFloatArray(name, value);
4299        return this;
4300    }
4301
4302    /**
4303     * Add extended data to the intent.  The name must include a package
4304     * prefix, for example the app com.android.contacts would use names
4305     * like "com.android.contacts.ShowAll".
4306     *
4307     * @param name The name of the extra data, with package prefix.
4308     * @param value The double array data value.
4309     *
4310     * @return Returns the same Intent object, for chaining multiple calls
4311     * into a single statement.
4312     *
4313     * @see #putExtras
4314     * @see #removeExtra
4315     * @see #getDoubleArrayExtra(String)
4316     */
4317    public Intent putExtra(String name, double[] value) {
4318        if (mExtras == null) {
4319            mExtras = new Bundle();
4320        }
4321        mExtras.putDoubleArray(name, value);
4322        return this;
4323    }
4324
4325    /**
4326     * Add extended data to the intent.  The name must include a package
4327     * prefix, for example the app com.android.contacts would use names
4328     * like "com.android.contacts.ShowAll".
4329     *
4330     * @param name The name of the extra data, with package prefix.
4331     * @param value The String array data value.
4332     *
4333     * @return Returns the same Intent object, for chaining multiple calls
4334     * into a single statement.
4335     *
4336     * @see #putExtras
4337     * @see #removeExtra
4338     * @see #getStringArrayExtra(String)
4339     */
4340    public Intent putExtra(String name, String[] value) {
4341        if (mExtras == null) {
4342            mExtras = new Bundle();
4343        }
4344        mExtras.putStringArray(name, value);
4345        return this;
4346    }
4347
4348    /**
4349     * Add extended data to the intent.  The name must include a package
4350     * prefix, for example the app com.android.contacts would use names
4351     * like "com.android.contacts.ShowAll".
4352     *
4353     * @param name The name of the extra data, with package prefix.
4354     * @param value The Bundle data value.
4355     *
4356     * @return Returns the same Intent object, for chaining multiple calls
4357     * into a single statement.
4358     *
4359     * @see #putExtras
4360     * @see #removeExtra
4361     * @see #getBundleExtra(String)
4362     */
4363    public Intent putExtra(String name, Bundle value) {
4364        if (mExtras == null) {
4365            mExtras = new Bundle();
4366        }
4367        mExtras.putBundle(name, value);
4368        return this;
4369    }
4370
4371    /**
4372     * Add extended data to the intent.  The name must include a package
4373     * prefix, for example the app com.android.contacts would use names
4374     * like "com.android.contacts.ShowAll".
4375     *
4376     * @param name The name of the extra data, with package prefix.
4377     * @param value The IBinder data value.
4378     *
4379     * @return Returns the same Intent object, for chaining multiple calls
4380     * into a single statement.
4381     *
4382     * @see #putExtras
4383     * @see #removeExtra
4384     * @see #getIBinderExtra(String)
4385     *
4386     * @deprecated
4387     * @hide
4388     */
4389    @Deprecated
4390    public Intent putExtra(String name, IBinder value) {
4391        if (mExtras == null) {
4392            mExtras = new Bundle();
4393        }
4394        mExtras.putIBinder(name, value);
4395        return this;
4396    }
4397
4398    /**
4399     * Copy all extras in 'src' in to this intent.
4400     *
4401     * @param src Contains the extras to copy.
4402     *
4403     * @see #putExtra
4404     */
4405    public Intent putExtras(Intent src) {
4406        if (src.mExtras != null) {
4407            if (mExtras == null) {
4408                mExtras = new Bundle(src.mExtras);
4409            } else {
4410                mExtras.putAll(src.mExtras);
4411            }
4412        }
4413        return this;
4414    }
4415
4416    /**
4417     * Add a set of extended data to the intent.  The keys must include a package
4418     * prefix, for example the app com.android.contacts would use names
4419     * like "com.android.contacts.ShowAll".
4420     *
4421     * @param extras The Bundle of extras to add to this intent.
4422     *
4423     * @see #putExtra
4424     * @see #removeExtra
4425     */
4426    public Intent putExtras(Bundle extras) {
4427        if (mExtras == null) {
4428            mExtras = new Bundle();
4429        }
4430        mExtras.putAll(extras);
4431        return this;
4432    }
4433
4434    /**
4435     * Completely replace the extras in the Intent with the extras in the
4436     * given Intent.
4437     *
4438     * @param src The exact extras contained in this Intent are copied
4439     * into the target intent, replacing any that were previously there.
4440     */
4441    public Intent replaceExtras(Intent src) {
4442        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4443        return this;
4444    }
4445
4446    /**
4447     * Completely replace the extras in the Intent with the given Bundle of
4448     * extras.
4449     *
4450     * @param extras The new set of extras in the Intent, or null to erase
4451     * all extras.
4452     */
4453    public Intent replaceExtras(Bundle extras) {
4454        mExtras = extras != null ? new Bundle(extras) : null;
4455        return this;
4456    }
4457
4458    /**
4459     * Remove extended data from the intent.
4460     *
4461     * @see #putExtra
4462     */
4463    public void removeExtra(String name) {
4464        if (mExtras != null) {
4465            mExtras.remove(name);
4466            if (mExtras.size() == 0) {
4467                mExtras = null;
4468            }
4469        }
4470    }
4471
4472    /**
4473     * Set special flags controlling how this intent is handled.  Most values
4474     * here depend on the type of component being executed by the Intent,
4475     * specifically the FLAG_ACTIVITY_* flags are all for use with
4476     * {@link Context#startActivity Context.startActivity()} and the
4477     * FLAG_RECEIVER_* flags are all for use with
4478     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4479     *
4480     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4481     * Activities and Tasks</a> documentation for important information on how some of these options impact
4482     * the behavior of your application.
4483     *
4484     * @param flags The desired flags.
4485     *
4486     * @return Returns the same Intent object, for chaining multiple calls
4487     * into a single statement.
4488     *
4489     * @see #getFlags
4490     * @see #addFlags
4491     *
4492     * @see #FLAG_GRANT_READ_URI_PERMISSION
4493     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4494     * @see #FLAG_DEBUG_LOG_RESOLUTION
4495     * @see #FLAG_FROM_BACKGROUND
4496     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4497     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4498     * @see #FLAG_ACTIVITY_CLEAR_TOP
4499     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4500     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4501     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4502     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4503     * @see #FLAG_ACTIVITY_NEW_TASK
4504     * @see #FLAG_ACTIVITY_NO_HISTORY
4505     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4506     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4507     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4508     * @see #FLAG_ACTIVITY_SINGLE_TOP
4509     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4510     */
4511    public Intent setFlags(int flags) {
4512        mFlags = flags;
4513        return this;
4514    }
4515
4516    /**
4517     * Add additional flags to the intent (or with existing flags
4518     * value).
4519     *
4520     * @param flags The new flags to set.
4521     *
4522     * @return Returns the same Intent object, for chaining multiple calls
4523     * into a single statement.
4524     *
4525     * @see #setFlags
4526     */
4527    public Intent addFlags(int flags) {
4528        mFlags |= flags;
4529        return this;
4530    }
4531
4532    /**
4533     * (Usually optional) Set an explicit application package name that limits
4534     * the components this Intent will resolve to.  If left to the default
4535     * value of null, all components in all applications will considered.
4536     * If non-null, the Intent can only match the components in the given
4537     * application package.
4538     *
4539     * @param packageName The name of the application package to handle the
4540     * intent, or null to allow any application package.
4541     *
4542     * @return Returns the same Intent object, for chaining multiple calls
4543     * into a single statement.
4544     *
4545     * @see #getPackage
4546     * @see #resolveActivity
4547     */
4548    public Intent setPackage(String packageName) {
4549        mPackage = packageName;
4550        return this;
4551    }
4552
4553    /**
4554     * (Usually optional) Explicitly set the component to handle the intent.
4555     * If left with the default value of null, the system will determine the
4556     * appropriate class to use based on the other fields (action, data,
4557     * type, categories) in the Intent.  If this class is defined, the
4558     * specified class will always be used regardless of the other fields.  You
4559     * should only set this value when you know you absolutely want a specific
4560     * class to be used; otherwise it is better to let the system find the
4561     * appropriate class so that you will respect the installed applications
4562     * and user preferences.
4563     *
4564     * @param component The name of the application component to handle the
4565     * intent, or null to let the system find one for you.
4566     *
4567     * @return Returns the same Intent object, for chaining multiple calls
4568     * into a single statement.
4569     *
4570     * @see #setClass
4571     * @see #setClassName(Context, String)
4572     * @see #setClassName(String, String)
4573     * @see #getComponent
4574     * @see #resolveActivity
4575     */
4576    public Intent setComponent(ComponentName component) {
4577        mComponent = component;
4578        return this;
4579    }
4580
4581    /**
4582     * Convenience for calling {@link #setComponent} with an
4583     * explicit class name.
4584     *
4585     * @param packageContext A Context of the application package implementing
4586     * this class.
4587     * @param className The name of a class inside of the application package
4588     * that will be used as the component for this Intent.
4589     *
4590     * @return Returns the same Intent object, for chaining multiple calls
4591     * into a single statement.
4592     *
4593     * @see #setComponent
4594     * @see #setClass
4595     */
4596    public Intent setClassName(Context packageContext, String className) {
4597        mComponent = new ComponentName(packageContext, className);
4598        return this;
4599    }
4600
4601    /**
4602     * Convenience for calling {@link #setComponent} with an
4603     * explicit application package name and class name.
4604     *
4605     * @param packageName The name of the package implementing the desired
4606     * component.
4607     * @param className The name of a class inside of the application package
4608     * that will be used as the component for this Intent.
4609     *
4610     * @return Returns the same Intent object, for chaining multiple calls
4611     * into a single statement.
4612     *
4613     * @see #setComponent
4614     * @see #setClass
4615     */
4616    public Intent setClassName(String packageName, String className) {
4617        mComponent = new ComponentName(packageName, className);
4618        return this;
4619    }
4620
4621    /**
4622     * Convenience for calling {@link #setComponent(ComponentName)} with the
4623     * name returned by a {@link Class} object.
4624     *
4625     * @param packageContext A Context of the application package implementing
4626     * this class.
4627     * @param cls The class name to set, equivalent to
4628     *            <code>setClassName(context, cls.getName())</code>.
4629     *
4630     * @return Returns the same Intent object, for chaining multiple calls
4631     * into a single statement.
4632     *
4633     * @see #setComponent
4634     */
4635    public Intent setClass(Context packageContext, Class<?> cls) {
4636        mComponent = new ComponentName(packageContext, cls);
4637        return this;
4638    }
4639
4640    /**
4641     * Use with {@link #fillIn} to allow the current action value to be
4642     * overwritten, even if it is already set.
4643     */
4644    public static final int FILL_IN_ACTION = 1<<0;
4645
4646    /**
4647     * Use with {@link #fillIn} to allow the current data or type value
4648     * overwritten, even if it is already set.
4649     */
4650    public static final int FILL_IN_DATA = 1<<1;
4651
4652    /**
4653     * Use with {@link #fillIn} to allow the current categories to be
4654     * overwritten, even if they are already set.
4655     */
4656    public static final int FILL_IN_CATEGORIES = 1<<2;
4657
4658    /**
4659     * Use with {@link #fillIn} to allow the current component value to be
4660     * overwritten, even if it is already set.
4661     */
4662    public static final int FILL_IN_COMPONENT = 1<<3;
4663
4664    /**
4665     * Use with {@link #fillIn} to allow the current package value to be
4666     * overwritten, even if it is already set.
4667     */
4668    public static final int FILL_IN_PACKAGE = 1<<4;
4669
4670    /**
4671     * Copy the contents of <var>other</var> in to this object, but only
4672     * where fields are not defined by this object.  For purposes of a field
4673     * being defined, the following pieces of data in the Intent are
4674     * considered to be separate fields:
4675     *
4676     * <ul>
4677     * <li> action, as set by {@link #setAction}.
4678     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4679     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4680     * <li> categories, as set by {@link #addCategory}.
4681     * <li> package, as set by {@link #setPackage}.
4682     * <li> component, as set by {@link #setComponent(ComponentName)} or
4683     * related methods.
4684     * <li> each top-level name in the associated extras.
4685     * </ul>
4686     *
4687     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4688     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4689     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
4690     * corresponding field will not be replaced if it is already set.
4691     *
4692     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
4693     * specified.
4694     *
4695     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4696     * and Intent B with {action="gotit", data-type="some/thing",
4697     * categories="one","two"}.
4698     *
4699     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4700     * containing: {action="gotit", data-type="some/thing",
4701     * categories="bar"}.
4702     *
4703     * @param other Another Intent whose values are to be used to fill in
4704     * the current one.
4705     * @param flags Options to control which fields can be filled in.
4706     *
4707     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4708     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4709     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4710     */
4711    public int fillIn(Intent other, int flags) {
4712        int changes = 0;
4713        if (other.mAction != null
4714                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
4715            mAction = other.mAction;
4716            changes |= FILL_IN_ACTION;
4717        }
4718        if ((other.mData != null || other.mType != null)
4719                && ((mData == null && mType == null)
4720                        || (flags&FILL_IN_DATA) != 0)) {
4721            mData = other.mData;
4722            mType = other.mType;
4723            changes |= FILL_IN_DATA;
4724        }
4725        if (other.mCategories != null
4726                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
4727            if (other.mCategories != null) {
4728                mCategories = new HashSet<String>(other.mCategories);
4729            }
4730            changes |= FILL_IN_CATEGORIES;
4731        }
4732        if (other.mPackage != null
4733                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
4734            mPackage = other.mPackage;
4735            changes |= FILL_IN_PACKAGE;
4736        }
4737        // Component is special: it can -only- be set if explicitly allowed,
4738        // since otherwise the sender could force the intent somewhere the
4739        // originator didn't intend.
4740        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
4741            mComponent = other.mComponent;
4742            changes |= FILL_IN_COMPONENT;
4743        }
4744        mFlags |= other.mFlags;
4745        if (mExtras == null) {
4746            if (other.mExtras != null) {
4747                mExtras = new Bundle(other.mExtras);
4748            }
4749        } else if (other.mExtras != null) {
4750            try {
4751                Bundle newb = new Bundle(other.mExtras);
4752                newb.putAll(mExtras);
4753                mExtras = newb;
4754            } catch (RuntimeException e) {
4755                // Modifying the extras can cause us to unparcel the contents
4756                // of the bundle, and if we do this in the system process that
4757                // may fail.  We really should handle this (i.e., the Bundle
4758                // impl shouldn't be on top of a plain map), but for now just
4759                // ignore it and keep the original contents. :(
4760                Log.w("Intent", "Failure filling in extras", e);
4761            }
4762        }
4763        return changes;
4764    }
4765
4766    /**
4767     * Wrapper class holding an Intent and implementing comparisons on it for
4768     * the purpose of filtering.  The class implements its
4769     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4770     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4771     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4772     * on the wrapped Intent.
4773     */
4774    public static final class FilterComparison {
4775        private final Intent mIntent;
4776        private final int mHashCode;
4777
4778        public FilterComparison(Intent intent) {
4779            mIntent = intent;
4780            mHashCode = intent.filterHashCode();
4781        }
4782
4783        /**
4784         * Return the Intent that this FilterComparison represents.
4785         * @return Returns the Intent held by the FilterComparison.  Do
4786         * not modify!
4787         */
4788        public Intent getIntent() {
4789            return mIntent;
4790        }
4791
4792        @Override
4793        public boolean equals(Object obj) {
4794            if (obj instanceof FilterComparison) {
4795                Intent other = ((FilterComparison)obj).mIntent;
4796                return mIntent.filterEquals(other);
4797            }
4798            return false;
4799        }
4800
4801        @Override
4802        public int hashCode() {
4803            return mHashCode;
4804        }
4805    }
4806
4807    /**
4808     * Determine if two intents are the same for the purposes of intent
4809     * resolution (filtering). That is, if their action, data, type,
4810     * class, and categories are the same.  This does <em>not</em> compare
4811     * any extra data included in the intents.
4812     *
4813     * @param other The other Intent to compare against.
4814     *
4815     * @return Returns true if action, data, type, class, and categories
4816     *         are the same.
4817     */
4818    public boolean filterEquals(Intent other) {
4819        if (other == null) {
4820            return false;
4821        }
4822        if (mAction != other.mAction) {
4823            if (mAction != null) {
4824                if (!mAction.equals(other.mAction)) {
4825                    return false;
4826                }
4827            } else {
4828                if (!other.mAction.equals(mAction)) {
4829                    return false;
4830                }
4831            }
4832        }
4833        if (mData != other.mData) {
4834            if (mData != null) {
4835                if (!mData.equals(other.mData)) {
4836                    return false;
4837                }
4838            } else {
4839                if (!other.mData.equals(mData)) {
4840                    return false;
4841                }
4842            }
4843        }
4844        if (mType != other.mType) {
4845            if (mType != null) {
4846                if (!mType.equals(other.mType)) {
4847                    return false;
4848                }
4849            } else {
4850                if (!other.mType.equals(mType)) {
4851                    return false;
4852                }
4853            }
4854        }
4855        if (mPackage != other.mPackage) {
4856            if (mPackage != null) {
4857                if (!mPackage.equals(other.mPackage)) {
4858                    return false;
4859                }
4860            } else {
4861                if (!other.mPackage.equals(mPackage)) {
4862                    return false;
4863                }
4864            }
4865        }
4866        if (mComponent != other.mComponent) {
4867            if (mComponent != null) {
4868                if (!mComponent.equals(other.mComponent)) {
4869                    return false;
4870                }
4871            } else {
4872                if (!other.mComponent.equals(mComponent)) {
4873                    return false;
4874                }
4875            }
4876        }
4877        if (mCategories != other.mCategories) {
4878            if (mCategories != null) {
4879                if (!mCategories.equals(other.mCategories)) {
4880                    return false;
4881                }
4882            } else {
4883                if (!other.mCategories.equals(mCategories)) {
4884                    return false;
4885                }
4886            }
4887        }
4888
4889        return true;
4890    }
4891
4892    /**
4893     * Generate hash code that matches semantics of filterEquals().
4894     *
4895     * @return Returns the hash value of the action, data, type, class, and
4896     *         categories.
4897     *
4898     * @see #filterEquals
4899     */
4900    public int filterHashCode() {
4901        int code = 0;
4902        if (mAction != null) {
4903            code += mAction.hashCode();
4904        }
4905        if (mData != null) {
4906            code += mData.hashCode();
4907        }
4908        if (mType != null) {
4909            code += mType.hashCode();
4910        }
4911        if (mPackage != null) {
4912            code += mPackage.hashCode();
4913        }
4914        if (mComponent != null) {
4915            code += mComponent.hashCode();
4916        }
4917        if (mCategories != null) {
4918            code += mCategories.hashCode();
4919        }
4920        return code;
4921    }
4922
4923    @Override
4924    public String toString() {
4925        StringBuilder   b = new StringBuilder(128);
4926
4927        b.append("Intent { ");
4928        toShortString(b, true, true);
4929        b.append(" }");
4930
4931        return b.toString();
4932    }
4933
4934    /** @hide */
4935    public String toShortString(boolean comp, boolean extras) {
4936        StringBuilder   b = new StringBuilder(128);
4937        toShortString(b, comp, extras);
4938        return b.toString();
4939    }
4940
4941    /** @hide */
4942    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
4943        boolean first = true;
4944        if (mAction != null) {
4945            b.append("act=").append(mAction);
4946            first = false;
4947        }
4948        if (mCategories != null) {
4949            if (!first) {
4950                b.append(' ');
4951            }
4952            first = false;
4953            b.append("cat=[");
4954            Iterator<String> i = mCategories.iterator();
4955            boolean didone = false;
4956            while (i.hasNext()) {
4957                if (didone) b.append(",");
4958                didone = true;
4959                b.append(i.next());
4960            }
4961            b.append("]");
4962        }
4963        if (mData != null) {
4964            if (!first) {
4965                b.append(' ');
4966            }
4967            first = false;
4968            b.append("dat=").append(mData);
4969        }
4970        if (mType != null) {
4971            if (!first) {
4972                b.append(' ');
4973            }
4974            first = false;
4975            b.append("typ=").append(mType);
4976        }
4977        if (mFlags != 0) {
4978            if (!first) {
4979                b.append(' ');
4980            }
4981            first = false;
4982            b.append("flg=0x").append(Integer.toHexString(mFlags));
4983        }
4984        if (mPackage != null) {
4985            if (!first) {
4986                b.append(' ');
4987            }
4988            first = false;
4989            b.append("pkg=").append(mPackage);
4990        }
4991        if (comp && mComponent != null) {
4992            if (!first) {
4993                b.append(' ');
4994            }
4995            first = false;
4996            b.append("cmp=").append(mComponent.flattenToShortString());
4997        }
4998        if (extras && mExtras != null) {
4999            if (!first) {
5000                b.append(' ');
5001            }
5002            first = false;
5003            b.append("(has extras)");
5004        }
5005    }
5006
5007    /**
5008     * Call {@link #toUri} with 0 flags.
5009     * @deprecated Use {@link #toUri} instead.
5010     */
5011    @Deprecated
5012    public String toURI() {
5013        return toUri(0);
5014    }
5015
5016    /**
5017     * Convert this Intent into a String holding a URI representation of it.
5018     * The returned URI string has been properly URI encoded, so it can be
5019     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
5020     * Intent's data as the base URI, with an additional fragment describing
5021     * the action, categories, type, flags, package, component, and extras.
5022     *
5023     * <p>You can convert the returned string back to an Intent with
5024     * {@link #getIntent}.
5025     *
5026     * @param flags Additional operating flags.  Either 0 or
5027     * {@link #URI_INTENT_SCHEME}.
5028     *
5029     * @return Returns a URI encoding URI string describing the entire contents
5030     * of the Intent.
5031     */
5032    public String toUri(int flags) {
5033        StringBuilder uri = new StringBuilder(128);
5034        String scheme = null;
5035        if (mData != null) {
5036            String data = mData.toString();
5037            if ((flags&URI_INTENT_SCHEME) != 0) {
5038                final int N = data.length();
5039                for (int i=0; i<N; i++) {
5040                    char c = data.charAt(i);
5041                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
5042                            || c == '.' || c == '-') {
5043                        continue;
5044                    }
5045                    if (c == ':' && i > 0) {
5046                        // Valid scheme.
5047                        scheme = data.substring(0, i);
5048                        uri.append("intent:");
5049                        data = data.substring(i+1);
5050                        break;
5051                    }
5052
5053                    // No scheme.
5054                    break;
5055                }
5056            }
5057            uri.append(data);
5058
5059        } else if ((flags&URI_INTENT_SCHEME) != 0) {
5060            uri.append("intent:");
5061        }
5062
5063        uri.append("#Intent;");
5064
5065        if (scheme != null) {
5066            uri.append("scheme=").append(scheme).append(';');
5067        }
5068        if (mAction != null) {
5069            uri.append("action=").append(Uri.encode(mAction)).append(';');
5070        }
5071        if (mCategories != null) {
5072            for (String category : mCategories) {
5073                uri.append("category=").append(Uri.encode(category)).append(';');
5074            }
5075        }
5076        if (mType != null) {
5077            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
5078        }
5079        if (mFlags != 0) {
5080            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
5081        }
5082        if (mPackage != null) {
5083            uri.append("package=").append(Uri.encode(mPackage)).append(';');
5084        }
5085        if (mComponent != null) {
5086            uri.append("component=").append(Uri.encode(
5087                    mComponent.flattenToShortString(), "/")).append(';');
5088        }
5089        if (mExtras != null) {
5090            for (String key : mExtras.keySet()) {
5091                final Object value = mExtras.get(key);
5092                char entryType =
5093                        value instanceof String    ? 'S' :
5094                        value instanceof Boolean   ? 'B' :
5095                        value instanceof Byte      ? 'b' :
5096                        value instanceof Character ? 'c' :
5097                        value instanceof Double    ? 'd' :
5098                        value instanceof Float     ? 'f' :
5099                        value instanceof Integer   ? 'i' :
5100                        value instanceof Long      ? 'l' :
5101                        value instanceof Short     ? 's' :
5102                        '\0';
5103
5104                if (entryType != '\0') {
5105                    uri.append(entryType);
5106                    uri.append('.');
5107                    uri.append(Uri.encode(key));
5108                    uri.append('=');
5109                    uri.append(Uri.encode(value.toString()));
5110                    uri.append(';');
5111                }
5112            }
5113        }
5114
5115        uri.append("end");
5116
5117        return uri.toString();
5118    }
5119
5120    public int describeContents() {
5121        return (mExtras != null) ? mExtras.describeContents() : 0;
5122    }
5123
5124    public void writeToParcel(Parcel out, int flags) {
5125        out.writeString(mAction);
5126        Uri.writeToParcel(out, mData);
5127        out.writeString(mType);
5128        out.writeInt(mFlags);
5129        out.writeString(mPackage);
5130        ComponentName.writeToParcel(mComponent, out);
5131
5132        if (mCategories != null) {
5133            out.writeInt(mCategories.size());
5134            for (String category : mCategories) {
5135                out.writeString(category);
5136            }
5137        } else {
5138            out.writeInt(0);
5139        }
5140
5141        out.writeBundle(mExtras);
5142    }
5143
5144    public static final Parcelable.Creator<Intent> CREATOR
5145            = new Parcelable.Creator<Intent>() {
5146        public Intent createFromParcel(Parcel in) {
5147            return new Intent(in);
5148        }
5149        public Intent[] newArray(int size) {
5150            return new Intent[size];
5151        }
5152    };
5153
5154    /** @hide */
5155    protected Intent(Parcel in) {
5156        readFromParcel(in);
5157    }
5158
5159    public void readFromParcel(Parcel in) {
5160        mAction = in.readString();
5161        mData = Uri.CREATOR.createFromParcel(in);
5162        mType = in.readString();
5163        mFlags = in.readInt();
5164        mPackage = in.readString();
5165        mComponent = ComponentName.readFromParcel(in);
5166
5167        int N = in.readInt();
5168        if (N > 0) {
5169            mCategories = new HashSet<String>();
5170            int i;
5171            for (i=0; i<N; i++) {
5172                mCategories.add(in.readString());
5173            }
5174        } else {
5175            mCategories = null;
5176        }
5177
5178        mExtras = in.readBundle();
5179    }
5180
5181    /**
5182     * Parses the "intent" element (and its children) from XML and instantiates
5183     * an Intent object.  The given XML parser should be located at the tag
5184     * where parsing should start (often named "intent"), from which the
5185     * basic action, data, type, and package and class name will be
5186     * retrieved.  The function will then parse in to any child elements,
5187     * looking for <category android:name="xxx"> tags to add categories and
5188     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5189     * to the intent.
5190     *
5191     * @param resources The Resources to use when inflating resources.
5192     * @param parser The XML parser pointing at an "intent" tag.
5193     * @param attrs The AttributeSet interface for retrieving extended
5194     * attribute data at the current <var>parser</var> location.
5195     * @return An Intent object matching the XML data.
5196     * @throws XmlPullParserException If there was an XML parsing error.
5197     * @throws IOException If there was an I/O error.
5198     */
5199    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5200            throws XmlPullParserException, IOException {
5201        Intent intent = new Intent();
5202
5203        TypedArray sa = resources.obtainAttributes(attrs,
5204                com.android.internal.R.styleable.Intent);
5205
5206        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5207
5208        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5209        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5210        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5211
5212        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5213        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5214        if (packageName != null && className != null) {
5215            intent.setComponent(new ComponentName(packageName, className));
5216        }
5217
5218        sa.recycle();
5219
5220        int outerDepth = parser.getDepth();
5221        int type;
5222        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5223               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5224            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5225                continue;
5226            }
5227
5228            String nodeName = parser.getName();
5229            if (nodeName.equals("category")) {
5230                sa = resources.obtainAttributes(attrs,
5231                        com.android.internal.R.styleable.IntentCategory);
5232                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5233                sa.recycle();
5234
5235                if (cat != null) {
5236                    intent.addCategory(cat);
5237                }
5238                XmlUtils.skipCurrentTag(parser);
5239
5240            } else if (nodeName.equals("extra")) {
5241                if (intent.mExtras == null) {
5242                    intent.mExtras = new Bundle();
5243                }
5244                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5245                XmlUtils.skipCurrentTag(parser);
5246
5247            } else {
5248                XmlUtils.skipCurrentTag(parser);
5249            }
5250        }
5251
5252        return intent;
5253    }
5254}
5255