Intent.java revision e1861133d51b9e6a6f658eb366630ad4f4d3ff8f
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/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/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/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/</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.app.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:value="android.intent.action.MAIN" /&gt;
244 *                 &lt;category android:value="android.intent.category.LAUNCHER" /&gt;
245 *             &lt;/intent-filter&gt;
246 *             &lt;intent-filter&gt;
247 *                 &lt;action android:value="android.intent.action.VIEW" /&gt;
248 *                 &lt;action android:value="android.intent.action.EDIT" /&gt;
249 *                 &lt;action android:value="android.intent.action.PICK" /&gt;
250 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
251 *                 &lt;type android:value="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
252 *             &lt;/intent-filter&gt;
253 *             &lt;intent-filter&gt;
254 *                 &lt;action android:value="android.intent.action.GET_CONTENT" /&gt;
255 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
256 *                 &lt;type android:value="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:value="android.intent.action.VIEW" /&gt;
263 *                 &lt;action android:value="android.intent.action.EDIT" /&gt;
264 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
265 *                 &lt;type android:value="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:value="android.intent.action.INSERT" /&gt;
270 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
271 *                 &lt;type android:value="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:value="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
280 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
281 *                 &lt;category android:value="android.intent.category.ALTERNATIVE" /&gt;
282 *                 &lt;category android:value="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
283 *                 &lt;type android:value="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:value="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
298 *     &lt;category android:value="{@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:value="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
307 *     &lt;action android:value="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
308 *     &lt;action android:value="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
309 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
310 *     &lt;type android:value="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:value="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
326 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
327 *     &lt;type android:value="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.app.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:value="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
375 *     &lt;action android:value="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
376 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
377 *     &lt;type android:value="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:value="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
388 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
389 *     &lt;type android:value="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.app.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:value="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
426 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
427 *     &lt;category android:value="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
428 *     &lt;category android:value="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
429 *     &lt;type android:value="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 * </ul>
514 *
515 * <h3>Standard Categories</h3>
516 *
517 * <p>These are the current standard categories that can be used to further
518 * clarify an Intent via {@link #addCategory}.
519 *
520 * <ul>
521 *     <li> {@link #CATEGORY_DEFAULT}
522 *     <li> {@link #CATEGORY_BROWSABLE}
523 *     <li> {@link #CATEGORY_TAB}
524 *     <li> {@link #CATEGORY_ALTERNATIVE}
525 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
526 *     <li> {@link #CATEGORY_LAUNCHER}
527 *     <li> {@link #CATEGORY_INFO}
528 *     <li> {@link #CATEGORY_HOME}
529 *     <li> {@link #CATEGORY_PREFERENCE}
530 *     <li> {@link #CATEGORY_TEST}
531 * </ul>
532 *
533 * <h3>Standard Extra Data</h3>
534 *
535 * <p>These are the current standard fields that can be used as extra data via
536 * {@link #putExtra}.
537 *
538 * <ul>
539 *     <li> {@link #EXTRA_TEMPLATE}
540 *     <li> {@link #EXTRA_INTENT}
541 *     <li> {@link #EXTRA_STREAM}
542 *     <li> {@link #EXTRA_TEXT}
543 * </ul>
544 *
545 * <h3>Flags</h3>
546 *
547 * <p>These are the possible flags that can be used in the Intent via
548 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
549 * of all possible flags.
550 */
551public class Intent implements Parcelable {
552    // ---------------------------------------------------------------------
553    // ---------------------------------------------------------------------
554    // Standard intent activity actions (see action variable).
555
556    /**
557     *  Activity Action: Start as a main entry point, does not expect to
558     *  receive data.
559     *  <p>Input: nothing
560     *  <p>Output: nothing
561     */
562    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
563    public static final String ACTION_MAIN = "android.intent.action.MAIN";
564
565    /**
566     * Activity Action: Display the data to the user.  This is the most common
567     * action performed on data -- it is the generic action you can use on
568     * a piece of data to get the most reasonable thing to occur.  For example,
569     * when used on a contacts entry it will view the entry; when used on a
570     * mailto: URI it will bring up a compose window filled with the information
571     * supplied by the URI; when used with a tel: URI it will invoke the
572     * dialer.
573     * <p>Input: {@link #getData} is URI from which to retrieve data.
574     * <p>Output: nothing.
575     */
576    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
577    public static final String ACTION_VIEW = "android.intent.action.VIEW";
578
579    /**
580     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
581     * performed on a piece of data.
582     */
583    public static final String ACTION_DEFAULT = ACTION_VIEW;
584
585    /**
586     * Used to indicate that some piece of data should be attached to some other
587     * place.  For example, image data could be attached to a contact.  It is up
588     * to the recipient to decide where the data should be attached; the intent
589     * does not specify the ultimate destination.
590     * <p>Input: {@link #getData} is URI of data to be attached.
591     * <p>Output: nothing.
592     */
593    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
594    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
595
596    /**
597     * Activity Action: Provide explicit editable access to the given data.
598     * <p>Input: {@link #getData} is URI of data to be edited.
599     * <p>Output: nothing.
600     */
601    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
602    public static final String ACTION_EDIT = "android.intent.action.EDIT";
603
604    /**
605     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
606     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
607     * The extras can contain type specific data to pass through to the editing/creating
608     * activity.
609     * <p>Output: The URI of the item that was picked.  This must be a content:
610     * URI so that any receiver can access it.
611     */
612    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
613    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
614
615    /**
616     * Activity Action: Pick an item from the data, returning what was selected.
617     * <p>Input: {@link #getData} is URI containing a directory of data
618     * (vnd.android.cursor.dir/*) from which to pick an item.
619     * <p>Output: The URI of the item that was picked.
620     */
621    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
622    public static final String ACTION_PICK = "android.intent.action.PICK";
623
624    /**
625     * Activity Action: Creates a shortcut.
626     * <p>Input: Nothing.</p>
627     * <p>Output: An Intent representing the shortcut. The intent must contain three
628     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
629     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
630     * (value: ShortcutIconResource).</p>
631     *
632     * @see #EXTRA_SHORTCUT_INTENT
633     * @see #EXTRA_SHORTCUT_NAME
634     * @see #EXTRA_SHORTCUT_ICON
635     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
636     * @see android.content.Intent.ShortcutIconResource
637     */
638    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
639    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
640
641    /**
642     * The name of the extra used to define the Intent of a shortcut.
643     *
644     * @see #ACTION_CREATE_SHORTCUT
645     */
646    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
647    /**
648     * The name of the extra used to define the name of a shortcut.
649     *
650     * @see #ACTION_CREATE_SHORTCUT
651     */
652    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
653    /**
654     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
655     *
656     * @see #ACTION_CREATE_SHORTCUT
657     */
658    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
659    /**
660     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
661     *
662     * @see #ACTION_CREATE_SHORTCUT
663     * @see android.content.Intent.ShortcutIconResource
664     */
665    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
666            "android.intent.extra.shortcut.ICON_RESOURCE";
667
668    /**
669     * Represents a shortcut/live folder icon resource.
670     *
671     * @see Intent#ACTION_CREATE_SHORTCUT
672     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
673     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
674     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
675     */
676    public static class ShortcutIconResource implements Parcelable {
677        /**
678         * The package name of the application containing the icon.
679         */
680        public String packageName;
681
682        /**
683         * The resource name of the icon, including package, name and type.
684         */
685        public String resourceName;
686
687        /**
688         * Creates a new ShortcutIconResource for the specified context and resource
689         * identifier.
690         *
691         * @param context The context of the application.
692         * @param resourceId The resource idenfitier for the icon.
693         * @return A new ShortcutIconResource with the specified's context package name
694         *         and icon resource idenfitier.
695         */
696        public static ShortcutIconResource fromContext(Context context, int resourceId) {
697            ShortcutIconResource icon = new ShortcutIconResource();
698            icon.packageName = context.getPackageName();
699            icon.resourceName = context.getResources().getResourceName(resourceId);
700            return icon;
701        }
702
703        /**
704         * Used to read a ShortcutIconResource from a Parcel.
705         */
706        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
707            new Parcelable.Creator<ShortcutIconResource>() {
708
709                public ShortcutIconResource createFromParcel(Parcel source) {
710                    ShortcutIconResource icon = new ShortcutIconResource();
711                    icon.packageName = source.readString();
712                    icon.resourceName = source.readString();
713                    return icon;
714                }
715
716                public ShortcutIconResource[] newArray(int size) {
717                    return new ShortcutIconResource[size];
718                }
719            };
720
721        /**
722         * No special parcel contents.
723         */
724        public int describeContents() {
725            return 0;
726        }
727
728        public void writeToParcel(Parcel dest, int flags) {
729            dest.writeString(packageName);
730            dest.writeString(resourceName);
731        }
732
733        @Override
734        public String toString() {
735            return resourceName;
736        }
737    }
738
739    /**
740     * Activity Action: Display an activity chooser, allowing the user to pick
741     * what they want to before proceeding.  This can be used as an alternative
742     * to the standard activity picker that is displayed by the system when
743     * you try to start an activity with multiple possible matches, with these
744     * differences in behavior:
745     * <ul>
746     * <li>You can specify the title that will appear in the activity chooser.
747     * <li>The user does not have the option to make one of the matching
748     * activities a preferred activity, and all possible activities will
749     * always be shown even if one of them is currently marked as the
750     * preferred activity.
751     * </ul>
752     * <p>
753     * This action should be used when the user will naturally expect to
754     * select an activity in order to proceed.  An example if when not to use
755     * it is when the user clicks on a "mailto:" link.  They would naturally
756     * expect to go directly to their mail app, so startActivity() should be
757     * called directly: it will
758     * either launch the current preferred app, or put up a dialog allowing the
759     * user to pick an app to use and optionally marking that as preferred.
760     * <p>
761     * In contrast, if the user is selecting a menu item to send a picture
762     * they are viewing to someone else, there are many different things they
763     * may want to do at this point: send it through e-mail, upload it to a
764     * web service, etc.  In this case the CHOOSER action should be used, to
765     * always present to the user a list of the things they can do, with a
766     * nice title given by the caller such as "Send this photo with:".
767     * <p>
768     * As a convenience, an Intent of this form can be created with the
769     * {@link #createChooser} function.
770     * <p>Input: No data should be specified.  get*Extra must have
771     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
772     * and can optionally have a {@link #EXTRA_TITLE} field containing the
773     * title text to display in the chooser.
774     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
775     */
776    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
777    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
778
779    /**
780     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
781     *
782     * @param target The Intent that the user will be selecting an activity
783     * to perform.
784     * @param title Optional title that will be displayed in the chooser.
785     * @return Return a new Intent object that you can hand to
786     * {@link Context#startActivity(Intent) Context.startActivity()} and
787     * related methods.
788     */
789    public static Intent createChooser(Intent target, CharSequence title) {
790        Intent intent = new Intent(ACTION_CHOOSER);
791        intent.putExtra(EXTRA_INTENT, target);
792        if (title != null) {
793            intent.putExtra(EXTRA_TITLE, title);
794        }
795        return intent;
796    }
797    /**
798     * Activity Action: Allow the user to select a particular kind of data and
799     * return it.  This is different than {@link #ACTION_PICK} in that here we
800     * just say what kind of data is desired, not a URI of existing data from
801     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
802     * create the data as it runs (for example taking a picture or recording a
803     * sound), let them browser over the web and download the desired data,
804     * etc.
805     * <p>
806     * There are two main ways to use this action: if you want an specific kind
807     * of data, such as a person contact, you set the MIME type to the kind of
808     * data you want and launch it with {@link Context#startActivity(Intent)}.
809     * The system will then launch the best application to select that kind
810     * of data for you.
811     * <p>
812     * You may also be interested in any of a set of types of content the user
813     * can pick.  For example, an e-mail application that wants to allow the
814     * user to add an attachment to an e-mail message can use this action to
815     * bring up a list of all of the types of content the user can attach.
816     * <p>
817     * In this case, you should wrap the GET_CONTENT intent with a chooser
818     * (through {@link #createChooser}), which will give the proper interface
819     * for the user to pick how to send your data and allow you to specify
820     * a prompt indicating what they are doing.  You will usually specify a
821     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
822     * broad range of content types the user can select from.
823     * <p>
824     * When using such a broad GET_CONTENT action, it is often desireable to
825     * only pick from data that can be represented as a stream.  This is
826     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
827     * <p>
828     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
829     * that no URI is supplied in the intent, as there are no constraints on
830     * where the returned data originally comes from.  You may also include the
831     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
832     * opened as a stream.
833     * <p>
834     * Output: The URI of the item that was picked.  This must be a content:
835     * URI so that any receiver can access it.
836     */
837    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
838    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
839    /**
840     * Activity Action: Dial a number as specified by the data.  This shows a
841     * UI with the number being dialed, allowing the user to explicitly
842     * initiate the call.
843     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
844     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
845     * number.
846     * <p>Output: nothing.
847     */
848    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
849    public static final String ACTION_DIAL = "android.intent.action.DIAL";
850    /**
851     * Activity Action: Perform a call to someone specified by the data.
852     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
853     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
854     * number.
855     * <p>Output: nothing.
856     *
857     * <p>Note: there will be restrictions on which applications can initiate a
858     * call; most applications should use the {@link #ACTION_DIAL}.
859     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
860     * numbers.  Applications can <strong>dial</strong> emergency numbers using
861     * {@link #ACTION_DIAL}, however.
862     */
863    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
864    public static final String ACTION_CALL = "android.intent.action.CALL";
865    /**
866     * Activity Action: Perform a call to an emergency number specified by the
867     * data.
868     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
869     * tel: URI of an explicit phone number.
870     * <p>Output: nothing.
871     * @hide
872     */
873    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
874    /**
875     * Activity action: Perform a call to any number (emergency or not)
876     * specified by the data.
877     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
878     * tel: URI of an explicit phone number.
879     * <p>Output: nothing.
880     * @hide
881     */
882    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
883    /**
884     * Activity Action: Send a message to someone specified by the data.
885     * <p>Input: {@link #getData} is URI describing the target.
886     * <p>Output: nothing.
887     */
888    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
889    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
890    /**
891     * Activity Action: Deliver some data to someone else.  Who the data is
892     * being delivered to is not specified; it is up to the receiver of this
893     * action to ask the user where the data should be sent.
894     * <p>
895     * When launching a SEND intent, you should usually wrap it in a chooser
896     * (through {@link #createChooser}), which will give the proper interface
897     * for the user to pick how to send your data and allow you to specify
898     * a prompt indicating what they are doing.
899     * <p>
900     * Input: {@link #getType} is the MIME type of the data being sent.
901     * get*Extra can have either a {@link #EXTRA_TEXT}
902     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
903     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
904     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
905     * if the MIME type is unknown (this will only allow senders that can
906     * handle generic data streams).
907     * <p>
908     * Optional standard extras, which may be interpreted by some recipients as
909     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
910     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
911     * <p>
912     * Output: nothing.
913     */
914    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
915    public static final String ACTION_SEND = "android.intent.action.SEND";
916    /**
917     * Activity Action: Handle an incoming phone call.
918     * <p>Input: nothing.
919     * <p>Output: nothing.
920     */
921    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
922    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
923    /**
924     * Activity Action: Insert an empty item into the given container.
925     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
926     * in which to place the data.
927     * <p>Output: URI of the new data that was created.
928     */
929    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
930    public static final String ACTION_INSERT = "android.intent.action.INSERT";
931    /**
932     * Activity Action: Delete the given data from its container.
933     * <p>Input: {@link #getData} is URI of data to be deleted.
934     * <p>Output: nothing.
935     */
936    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
937    public static final String ACTION_DELETE = "android.intent.action.DELETE";
938    /**
939     * Activity Action: Run the data, whatever that means.
940     * <p>Input: ?  (Note: this is currently specific to the test harness.)
941     * <p>Output: nothing.
942     */
943    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
944    public static final String ACTION_RUN = "android.intent.action.RUN";
945    /**
946     * Activity Action: Perform a data synchronization.
947     * <p>Input: ?
948     * <p>Output: ?
949     */
950    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
951    public static final String ACTION_SYNC = "android.intent.action.SYNC";
952    /**
953     * Activity Action: Pick an activity given an intent, returning the class
954     * selected.
955     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
956     * used with {@link PackageManager#queryIntentActivities} to determine the
957     * set of activities from which to pick.
958     * <p>Output: Class name of the activity that was selected.
959     */
960    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
961    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
962    /**
963     * Activity Action: Perform a search.
964     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
965     * is the text to search for.  If empty, simply
966     * enter your search results Activity with the search UI activated.
967     * <p>Output: nothing.
968     */
969    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
970    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
971    /**
972     * Activity Action: Start the platform-defined tutorial
973     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
974     * is the text to search for.  If empty, simply
975     * enter your search results Activity with the search UI activated.
976     * <p>Output: nothing.
977     */
978    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
979    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
980    /**
981     * Activity Action: Perform a web search.
982     * <p>
983     * Input: {@link android.app.SearchManager#QUERY
984     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
985     * a url starts with http or https, the site will be opened. If it is plain
986     * text, Google search will be applied.
987     * <p>
988     * Output: nothing.
989     */
990    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
991    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
992    /**
993     * Activity Action: List all available applications
994     * <p>Input: Nothing.
995     * <p>Output: nothing.
996     */
997    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
998    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
999    /**
1000     * Activity Action: Show settings for choosing wallpaper
1001     * <p>Input: Nothing.
1002     * <p>Output: Nothing.
1003     */
1004    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1005    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1006
1007    /**
1008     * Activity Action: Show activity for reporting a bug.
1009     * <p>Input: Nothing.
1010     * <p>Output: Nothing.
1011     */
1012    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1013    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1014
1015    /**
1016     *  Activity Action: Main entry point for factory tests.  Only used when
1017     *  the device is booting in factory test node.  The implementing package
1018     *  must be installed in the system image.
1019     *  <p>Input: nothing
1020     *  <p>Output: nothing
1021     */
1022    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1023
1024    /**
1025     * Activity Action: The user pressed the "call" button to go to the dialer
1026     * or other appropriate UI for placing a call.
1027     * <p>Input: Nothing.
1028     * <p>Output: Nothing.
1029     */
1030    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1031    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1032
1033    /**
1034     * Activity Action: Start Voice Command.
1035     * <p>Input: Nothing.
1036     * <p>Output: Nothing.
1037     */
1038    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1039    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1040
1041    /**
1042     * Activity Action: Start action associated with long pressing on the
1043     * search key.
1044     * <p>Input: Nothing.
1045     * <p>Output: Nothing.
1046     */
1047    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1048    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1049
1050    // ---------------------------------------------------------------------
1051    // ---------------------------------------------------------------------
1052    // Standard intent broadcast actions (see action variable).
1053
1054    /**
1055     * Broadcast Action: Sent after the screen turns off.
1056     */
1057    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1058    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1059    /**
1060     * Broadcast Action: Sent after the screen turns on.
1061     */
1062    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1063    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1064
1065    /**
1066     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1067     * keyguard is gone).
1068     */
1069    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1070    public static final String ACTION_USER_PRESENT= "android.intent.action.USER_PRESENT";
1071
1072    /**
1073     * Broadcast Action: The current time has changed.  Sent every
1074     * minute.  You can <em>not</em> receive this through components declared
1075     * in manifests, only by exlicitly registering for it with
1076     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1077     * Context.registerReceiver()}.
1078     */
1079    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1080    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1081    /**
1082     * Broadcast Action: The time was set.
1083     */
1084    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1085    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1086    /**
1087     * Broadcast Action: The date has changed.
1088     */
1089    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1090    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1091    /**
1092     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1093     * <ul>
1094     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1095     * </ul>
1096     */
1097    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1098    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1099    /**
1100     * Alarm Changed Action: This is broadcast when the AlarmClock
1101     * application's alarm is set or unset.  It is used by the
1102     * AlarmClock application and the StatusBar service.
1103     * @hide
1104     */
1105    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1106    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1107    /**
1108     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1109     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1110     * @hide
1111     */
1112    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1113    public static final String ACTION_SYNC_STATE_CHANGED
1114            = "android.intent.action.SYNC_STATE_CHANGED";
1115    /**
1116     * Broadcast Action: This is broadcast once, after the system has finished
1117     * booting.  It can be used to perform application-specific initialization,
1118     * such as installing alarms.  You must hold the
1119     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1120     * in order to receive this broadcast.
1121     */
1122    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1123    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1124    /**
1125     * Broadcast Action: This is broadcast when a user action should request a
1126     * temporary system dialog to dismiss.  Some examples of temporary system
1127     * dialogs are the notification window-shade and the recent tasks dialog.
1128     */
1129    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1130    /**
1131     * Broadcast Action: Trigger the download and eventual installation
1132     * of a package.
1133     * <p>Input: {@link #getData} is the URI of the package file to download.
1134     */
1135    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1136    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1137    /**
1138     * Broadcast Action: A new application package has been installed on the
1139     * device. The data contains the name of the package.  Note that the
1140     * newly installed package does <em>not</em> receive this broadcast.
1141     * <p>My include the following extras:
1142     * <ul>
1143     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1144     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1145     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1146     * </ul>
1147     */
1148    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1149    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1150    /**
1151     * Broadcast Action: A new version of an application package has been
1152     * installed, replacing an existing version that was previously installed.
1153     * The data contains the name of the package.
1154     * <p>My include the following extras:
1155     * <ul>
1156     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1157     * </ul>
1158     */
1159    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1160    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1161    /**
1162     * Broadcast Action: An existing application package has been removed from
1163     * the device.  The data contains the name of the package.  The package
1164     * that is being installed does <em>not</em> receive this Intent.
1165     * <ul>
1166     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1167     * to the package.
1168     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1169     * application -- data and code -- is being removed.
1170     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1171     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1172     * </ul>
1173     */
1174    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1175    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1176    /**
1177     * Broadcast Action: An existing application package has been changed (e.g. a component has been
1178     * enabled or disabled.  The data contains the name of the package.
1179     * <ul>
1180     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1181     * </ul>
1182     */
1183    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1184    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1185    /**
1186     * Broadcast Action: The user has restarted a package, and all of its
1187     * processes have been killed.  All runtime state
1188     * associated with it (processes, alarms, notifications, etc) should
1189     * be removed.  Note that the restarted package does <em>not</em>
1190     * receive this broadcast.
1191     * The data contains the name of the package.
1192     * <ul>
1193     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1194     * </ul>
1195     */
1196    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1197    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1198    /**
1199     * Broadcast Action: The user has cleared the data of a package.  This should
1200     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1201     * its persistent data is erased and this broadcast sent.
1202     * Note that the cleared package does <em>not</em>
1203     * receive this broadcast. The data contains the name of the package.
1204     * <ul>
1205     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1206     * </ul>
1207     */
1208    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1209    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1210    /**
1211     * Broadcast Action: A user ID has been removed from the system.  The user
1212     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1213     */
1214    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1215    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1216    /**
1217     * Broadcast Action:  The current system wallpaper has changed.  See
1218     * {@link Context#getWallpaper} for retrieving the new wallpaper.
1219     */
1220    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1221    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1222    /**
1223     * Broadcast Action: The current device {@link android.content.res.Configuration}
1224     * (orientation, locale, etc) has changed.  When such a change happens, the
1225     * UIs (view hierarchy) will need to be rebuilt based on this new
1226     * information; for the most part, applications don't need to worry about
1227     * this, because the system will take care of stopping and restarting the
1228     * application to make sure it sees the new changes.  Some system code that
1229     * can not be restarted will need to watch for this action and handle it
1230     * appropriately.
1231     *
1232     * @see android.content.res.Configuration
1233     */
1234    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1235    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1236    /**
1237     * Broadcast Action:  The charging state, or charge level of the battery has
1238     * changed.
1239     *
1240     * <p class="note">
1241     * You can <em>not</em> receive this through components declared
1242     * in manifests, only by exlicitly registering for it with
1243     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1244     * Context.registerReceiver()}.
1245     */
1246    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1247    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1248    /**
1249     * Broadcast Action:  Indicates low battery condition on the device.
1250     * This broadcast corresponds to the "Low battery warning" system dialog.
1251     */
1252    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1253    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1254    /**
1255     * Broadcast Action:  External power has been connected to the device.
1256     * This is intended for applications that wish to register specifically to this notification.
1257     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1258     * stay active to receive this notification.  This action can be used to implement actions
1259     * that wait until power is available to trigger.
1260     */
1261    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1262    public static final String ACTION_POWER_CONNECTED = "android.intent.action.POWER_CONNECTED";
1263    /**
1264     * Broadcast Action:  External power has been removed from the device.
1265     * This is intended for applications that wish to register specifically to this notification.
1266     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1267     * stay active to receive this notification.  This action can be used to implement actions
1268     * that wait until power is available to trigger.
1269     */
1270    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1271    public static final String ACTION_POWER_DISCONNECTED =
1272            "android.intent.action.POWER_DISCONNECTED";
1273    /**
1274     * Broadcast Action:  Indicates low memory condition on the device
1275     */
1276    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1277    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1278    /**
1279     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1280     */
1281    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1282    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1283    /**
1284     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1285     * and package management should be started.
1286     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1287     * notification.
1288     */
1289    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1290    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1291    /**
1292     * Broadcast Action:  The device has entered USB Mass Storage mode.
1293     * This is used mainly for the USB Settings panel.
1294     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1295     * when the SD card file system is mounted or unmounted
1296     */
1297    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1298    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1299
1300    /**
1301     * Broadcast Action:  The device has exited USB Mass Storage mode.
1302     * This is used mainly for the USB Settings panel.
1303     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1304     * when the SD card file system is mounted or unmounted
1305     */
1306    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1307    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1308
1309    /**
1310     * Broadcast Action:  External media has been removed.
1311     * The path to the mount point for the removed media is contained in the Intent.mData field.
1312     */
1313    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1314    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1315
1316    /**
1317     * Broadcast Action:  External media is present, but not mounted at its mount point.
1318     * The path to the mount point for the removed media is contained in the Intent.mData field.
1319     */
1320    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1321    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1322
1323    /**
1324     * Broadcast Action:  External media is present, and being disk-checked
1325     * The path to the mount point for the checking media is contained in the Intent.mData field.
1326     */
1327    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1328    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1329
1330    /**
1331     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1332     * The path to the mount point for the checking media is contained in the Intent.mData field.
1333     */
1334    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1335    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1336
1337    /**
1338     * Broadcast Action:  External media is present and mounted at its mount point.
1339     * The path to the mount point for the removed media is contained in the Intent.mData field.
1340     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1341     * media was mounted read only.
1342     */
1343    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1344    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1345
1346    /**
1347     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1348     * The path to the mount point for the removed media is contained in the Intent.mData field.
1349     */
1350    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1351    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1352
1353    /**
1354     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1355     * The path to the mount point for the removed media is contained in the Intent.mData field.
1356     */
1357    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1358    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1359
1360    /**
1361     * Broadcast Action:  External media is present but cannot be mounted.
1362     * The path to the mount point for the removed media is contained in the Intent.mData field.
1363     */
1364    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1365    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1366
1367   /**
1368     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1369     * Applications should close all files they have open within the mount point when they receive this intent.
1370     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1371     */
1372    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1373    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1374
1375    /**
1376     * Broadcast Action:  The media scanner has started scanning a directory.
1377     * The path to the directory being scanned is contained in the Intent.mData field.
1378     */
1379    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1380    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1381
1382   /**
1383     * Broadcast Action:  The media scanner has finished scanning a directory.
1384     * The path to the scanned directory is contained in the Intent.mData field.
1385     */
1386    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1387    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1388
1389   /**
1390     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1391     * The path to the file is contained in the Intent.mData field.
1392     */
1393    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1394    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1395
1396   /**
1397     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1398     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1399     * caused the broadcast.
1400     */
1401    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1402    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1403
1404    /**
1405     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1406     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1407     * caused the broadcast.
1408     */
1409    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1410    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1411
1412    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1413    // location; they are not general-purpose actions.
1414
1415    /**
1416     * Broadcast Action: An GTalk connection has been established.
1417     */
1418    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1419    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1420            "android.intent.action.GTALK_CONNECTED";
1421
1422    /**
1423     * Broadcast Action: An GTalk connection has been disconnected.
1424     */
1425    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1426    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1427            "android.intent.action.GTALK_DISCONNECTED";
1428
1429    /**
1430     * Broadcast Action: An input method has been changed.
1431     * {@hide pending API Council approval}
1432     */
1433    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1434    public static final String ACTION_INPUT_METHOD_CHANGED =
1435            "android.intent.action.INPUT_METHOD_CHANGED";
1436
1437    /**
1438     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1439     * more radios have been turned off or on. The intent will have the following extra value:</p>
1440     * <ul>
1441     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1442     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1443     *   turned off</li>
1444     * </ul>
1445     */
1446    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1447    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1448
1449    /**
1450     * Broadcast Action: Some content providers have parts of their namespace
1451     * where they publish new events or items that the user may be especially
1452     * interested in. For these things, they may broadcast this action when the
1453     * set of interesting items change.
1454     *
1455     * For example, GmailProvider sends this notification when the set of unread
1456     * mail in the inbox changes.
1457     *
1458     * <p>The data of the intent identifies which part of which provider
1459     * changed. When queried through the content resolver, the data URI will
1460     * return the data set in question.
1461     *
1462     * <p>The intent will have the following extra values:
1463     * <ul>
1464     *   <li><em>count</em> - The number of items in the data set. This is the
1465     *       same as the number of items in the cursor returned by querying the
1466     *       data URI. </li>
1467     * </ul>
1468     *
1469     * This intent will be sent at boot (if the count is non-zero) and when the
1470     * data set changes. It is possible for the data set to change without the
1471     * count changing (for example, if a new unread message arrives in the same
1472     * sync operation in which a message is archived). The phone should still
1473     * ring/vibrate/etc as normal in this case.
1474     */
1475    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1476    public static final String ACTION_PROVIDER_CHANGED =
1477            "android.intent.action.PROVIDER_CHANGED";
1478
1479    /**
1480     * Broadcast Action: Wired Headset plugged in or unplugged.
1481     *
1482     * <p>The intent will have the following extra values:
1483     * <ul>
1484     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1485     *   <li><em>name</em> - Headset type, human readable string </li>
1486     * </ul>
1487     * </ul>
1488     */
1489    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1490    public static final String ACTION_HEADSET_PLUG =
1491            "android.intent.action.HEADSET_PLUG";
1492
1493    /**
1494     * Broadcast Action: An outgoing call is about to be placed.
1495     *
1496     * <p>The Intent will have the following extra value:
1497     * <ul>
1498     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1499     *       the phone number originally intended to be dialed.</li>
1500     * </ul>
1501     * <p>Once the broadcast is finished, the resultData is used as the actual
1502     * number to call.  If  <code>null</code>, no call will be placed.</p>
1503     * <p>It is perfectly acceptable for multiple receivers to process the
1504     * outgoing call in turn: for example, a parental control application
1505     * might verify that the user is authorized to place the call at that
1506     * time, then a number-rewriting application might add an area code if
1507     * one was not specified.</p>
1508     * <p>For consistency, any receiver whose purpose is to prohibit phone
1509     * calls should have a priority of 0, to ensure it will see the final
1510     * phone number to be dialed.
1511     * Any receiver whose purpose is to rewrite phone numbers to be called
1512     * should have a positive priority.
1513     * Negative priorities are reserved for the system for this broadcast;
1514     * using them may cause problems.</p>
1515     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1516     * abort the broadcast.</p>
1517     * <p>Emergency calls cannot be intercepted using this mechanism, and
1518     * other calls cannot be modified to call emergency numbers using this
1519     * mechanism.
1520     * <p>You must hold the
1521     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1522     * permission to receive this Intent.</p>
1523     */
1524    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1525    public static final String ACTION_NEW_OUTGOING_CALL =
1526            "android.intent.action.NEW_OUTGOING_CALL";
1527
1528    /**
1529     * Broadcast Action: Have the device reboot.  This is only for use by
1530     * system code.
1531     */
1532    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1533    public static final String ACTION_REBOOT =
1534            "android.intent.action.REBOOT";
1535
1536    // ---------------------------------------------------------------------
1537    // ---------------------------------------------------------------------
1538    // Standard intent categories (see addCategory()).
1539
1540    /**
1541     * Set if the activity should be an option for the default action
1542     * (center press) to perform on a piece of data.  Setting this will
1543     * hide from the user any activities without it set when performing an
1544     * action on some data.  Note that this is normal -not- set in the
1545     * Intent when initiating an action -- it is for use in intent filters
1546     * specified in packages.
1547     */
1548    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1549    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1550    /**
1551     * Activities that can be safely invoked from a browser must support this
1552     * category.  For example, if the user is viewing a web page or an e-mail
1553     * and clicks on a link in the text, the Intent generated execute that
1554     * link will require the BROWSABLE category, so that only activities
1555     * supporting this category will be considered as possible actions.  By
1556     * supporting this category, you are promising that there is nothing
1557     * damaging (without user intervention) that can happen by invoking any
1558     * matching Intent.
1559     */
1560    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1561    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1562    /**
1563     * Set if the activity should be considered as an alternative action to
1564     * the data the user is currently viewing.  See also
1565     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1566     * applies to the selection in a list of items.
1567     *
1568     * <p>Supporting this category means that you would like your activity to be
1569     * displayed in the set of alternative things the user can do, usually as
1570     * part of the current activity's options menu.  You will usually want to
1571     * include a specific label in the &lt;intent-filter&gt; of this action
1572     * describing to the user what it does.
1573     *
1574     * <p>The action of IntentFilter with this category is important in that it
1575     * describes the specific action the target will perform.  This generally
1576     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1577     * a specific name such as "com.android.camera.action.CROP.  Only one
1578     * alternative of any particular action will be shown to the user, so using
1579     * a specific action like this makes sure that your alternative will be
1580     * displayed while also allowing other applications to provide their own
1581     * overrides of that particular action.
1582     */
1583    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1584    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1585    /**
1586     * Set if the activity should be considered as an alternative selection
1587     * action to the data the user has currently selected.  This is like
1588     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1589     * of items from which the user can select, giving them alternatives to the
1590     * default action that will be performed on it.
1591     */
1592    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1593    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1594    /**
1595     * Intended to be used as a tab inside of an containing TabActivity.
1596     */
1597    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1598    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1599    /**
1600     * Should be displayed in the top-level launcher.
1601     */
1602    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1603    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1604    /**
1605     * Provides information about the package it is in; typically used if
1606     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1607     * a front-door to the user without having to be shown in the all apps list.
1608     */
1609    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1610    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1611    /**
1612     * This is the home activity, that is the first activity that is displayed
1613     * when the device boots.
1614     */
1615    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1616    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1617    /**
1618     * This activity is a preference panel.
1619     */
1620    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1621    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1622    /**
1623     * This activity is a development preference panel.
1624     */
1625    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1626    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1627    /**
1628     * Capable of running inside a parent activity container.
1629     */
1630    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1631    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1632    /**
1633     * This activity may be exercised by the monkey or other automated test tools.
1634     */
1635    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1636    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1637    /**
1638     * To be used as a test (not part of the normal user experience).
1639     */
1640    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1641    /**
1642     * To be used as a unit test (run through the Test Harness).
1643     */
1644    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1645    /**
1646     * To be used as an sample code example (not part of the normal user
1647     * experience).
1648     */
1649    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1650    /**
1651     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1652     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1653     * when queried, though it is allowable for those columns to be blank.
1654     */
1655    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1656    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1657
1658    /**
1659     * To be used as code under test for framework instrumentation tests.
1660     */
1661    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1662            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1663    // ---------------------------------------------------------------------
1664    // ---------------------------------------------------------------------
1665    // Standard extra data keys.
1666
1667    /**
1668     * The initial data to place in a newly created record.  Use with
1669     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1670     * fields as would be given to the underlying ContentProvider.insert()
1671     * call.
1672     */
1673    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1674
1675    /**
1676     * A constant CharSequence that is associated with the Intent, used with
1677     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1678     * this may be a styled CharSequence, so you must use
1679     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1680     * retrieve it.
1681     */
1682    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1683
1684    /**
1685     * A content: URI holding a stream of data associated with the Intent,
1686     * used with {@link #ACTION_SEND} to supply the data being sent.
1687     */
1688    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1689
1690    /**
1691     * A String[] holding e-mail addresses that should be delivered to.
1692     */
1693    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1694
1695    /**
1696     * A String[] holding e-mail addresses that should be carbon copied.
1697     */
1698    public static final String EXTRA_CC       = "android.intent.extra.CC";
1699
1700    /**
1701     * A String[] holding e-mail addresses that should be blind carbon copied.
1702     */
1703    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1704
1705    /**
1706     * A constant string holding the desired subject line of a message.
1707     */
1708    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1709
1710    /**
1711     * An Intent describing the choices you would like shown with
1712     * {@link #ACTION_PICK_ACTIVITY}.
1713     */
1714    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1715
1716    /**
1717     * A CharSequence dialog title to provide to the user when used with a
1718     * {@link #ACTION_CHOOSER}.
1719     */
1720    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1721
1722    /**
1723     * A {@link android.view.KeyEvent} object containing the event that
1724     * triggered the creation of the Intent it is in.
1725     */
1726    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1727
1728    /**
1729     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1730     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
1731     * of restarting the application.
1732     */
1733    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
1734
1735    /**
1736     * A String holding the phone number originally entered in
1737     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
1738     * number to call in a {@link android.content.Intent#ACTION_CALL}.
1739     */
1740    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
1741    /**
1742     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
1743     * intents to supply the uid the package had been assigned.  Also an optional
1744     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1745     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
1746     * purpose.
1747     */
1748    public static final String EXTRA_UID = "android.intent.extra.UID";
1749
1750    /**
1751     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1752     * intents to indicate whether this represents a full uninstall (removing
1753     * both the code and its data) or a partial uninstall (leaving its data,
1754     * implying that this is an update).
1755     */
1756    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
1757
1758    /**
1759     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1760     * intents to indicate that this is a replacement of the package, so this
1761     * broadcast will immediately be followed by an add broadcast for a
1762     * different version of the same package.
1763     */
1764    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
1765
1766    /**
1767     * Used as an int extra field in {@link android.app.AlarmManager} intents
1768     * to tell the application being invoked how many pending alarms are being
1769     * delievered with the intent.  For one-shot alarms this will always be 1.
1770     * For recurring alarms, this might be greater than 1 if the device was
1771     * asleep or powered off at the time an earlier alarm would have been
1772     * delivered.
1773     */
1774    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
1775
1776    // ---------------------------------------------------------------------
1777    // ---------------------------------------------------------------------
1778    // Intent flags (see mFlags variable).
1779
1780    /**
1781     * If set, the recipient of this Intent will be granted permission to
1782     * perform read operations on the Uri in the Intent's data.
1783     */
1784    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
1785    /**
1786     * If set, the recipient of this Intent will be granted permission to
1787     * perform write operations on the Uri in the Intent's data.
1788     */
1789    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
1790    /**
1791     * Can be set by the caller to indicate that this Intent is coming from
1792     * a background operation, not from direct user interaction.
1793     */
1794    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
1795    /**
1796     * A flag you can enable for debugging: when set, log messages will be
1797     * printed during the resolution of this intent to show you what has
1798     * been found to create the final resolved list.
1799     */
1800    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
1801
1802    /**
1803     * If set, the new activity is not kept in the history stack.  As soon as
1804     * the user navigates away from it, the activity is finished.  This may also
1805     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
1806     * noHistory} attribute.
1807     */
1808    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
1809    /**
1810     * If set, the activity will not be launched if it is already running
1811     * at the top of the history stack.
1812     */
1813    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
1814    /**
1815     * If set, this activity will become the start of a new task on this
1816     * history stack.  A task (from the activity that started it to the
1817     * next task activity) defines an atomic group of activities that the
1818     * user can move to.  Tasks can be moved to the foreground and background;
1819     * all of the activities inside of a particular task always remain in
1820     * the same order.  See
1821     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
1822     * Activities and Tasks</a> for more details on tasks.
1823     *
1824     * <p>This flag is generally used by activities that want
1825     * to present a "launcher" style behavior: they give the user a list of
1826     * separate things that can be done, which otherwise run completely
1827     * independently of the activity launching them.
1828     *
1829     * <p>When using this flag, if a task is already running for the activity
1830     * you are now starting, then a new activity will not be started; instead,
1831     * the current task will simply be brought to the front of the screen with
1832     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
1833     * to disable this behavior.
1834     *
1835     * <p>This flag can not be used when the caller is requesting a result from
1836     * the activity being launched.
1837     */
1838    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
1839    /**
1840     * <strong>Do not use this flag unless you are implementing your own
1841     * top-level application launcher.</strong>  Used in conjunction with
1842     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
1843     * behavior of bringing an existing task to the foreground.  When set,
1844     * a new task is <em>always</em> started to host the Activity for the
1845     * Intent, regardless of whether there is already an existing task running
1846     * the same thing.
1847     *
1848     * <p><strong>Because the default system does not include graphical task management,
1849     * you should not use this flag unless you provide some way for a user to
1850     * return back to the tasks you have launched.</strong>
1851     *
1852     * <p>This flag is ignored if
1853     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
1854     *
1855     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
1856     * Activities and Tasks</a> for more details on tasks.
1857     */
1858    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
1859    /**
1860     * If set, and the activity being launched is already running in the
1861     * current task, then instead of launching a new instance of that activity,
1862     * all of the other activities on top of it will be closed and this Intent
1863     * will be delivered to the (now on top) old activity as a new Intent.
1864     *
1865     * <p>For example, consider a task consisting of the activities: A, B, C, D.
1866     * If D calls startActivity() with an Intent that resolves to the component
1867     * of activity B, then C and D will be finished and B receive the given
1868     * Intent, resulting in the stack now being: A, B.
1869     *
1870     * <p>The currently running instance of task B in the above example will
1871     * either receive the new intent you are starting here in its
1872     * onNewIntent() method, or be itself finished and restarted with the
1873     * new intent.  If it has declared its launch mode to be "multiple" (the
1874     * default) it will be finished and re-created; for all other launch modes
1875     * it will receive the Intent in the current instance.
1876     *
1877     * <p>This launch mode can also be used to good effect in conjunction with
1878     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
1879     * of a task, it will bring any currently running instance of that task
1880     * to the foreground, and then clear it to its root state.  This is
1881     * especially useful, for example, when launching an activity from the
1882     * notification manager.
1883     *
1884     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
1885     * Activities and Tasks</a> for more details on tasks.
1886     */
1887    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
1888    /**
1889     * If set and this intent is being used to launch a new activity from an
1890     * existing one, then the reply target of the existing activity will be
1891     * transfered to the new activity.  This way the new activity can call
1892     * {@link android.app.Activity#setResult} and have that result sent back to
1893     * the reply target of the original activity.
1894     */
1895    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
1896    /**
1897     * If set and this intent is being used to launch a new activity from an
1898     * existing one, the current activity will not be counted as the top
1899     * activity for deciding whether the new intent should be delivered to
1900     * the top instead of starting a new one.  The previous activity will
1901     * be used as the top, with the assumption being that the current activity
1902     * will finish itself immediately.
1903     */
1904    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
1905    /**
1906     * If set, the new activity is not kept in the list of recently launched
1907     * activities.
1908     */
1909    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
1910    /**
1911     * This flag is not normally set by application code, but set for you by
1912     * the system as described in the
1913     * {@link android.R.styleable#AndroidManifestActivity_launchMode
1914     * launchMode} documentation for the singleTask mode.
1915     */
1916    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
1917    /**
1918     * If set, and this activity is either being started in a new task or
1919     * bringing to the top an existing task, then it will be launched as
1920     * the front door of the task.  This will result in the application of
1921     * any affinities needed to have that task in the proper state (either
1922     * moving activities to or from it), or simply resetting that task to
1923     * its initial state if needed.
1924     */
1925    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
1926    /**
1927     * This flag is not normally set by application code, but set for you by
1928     * the system if this activity is being launched from history
1929     * (longpress home key).
1930     */
1931    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
1932    /**
1933     * If set, this marks a point in the task's activity stack that should
1934     * be cleared when the task is reset.  That is, the next time the task
1935     * is broad to the foreground with
1936     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
1937     * the user re-launching it from home), this activity and all on top of
1938     * it will be finished so that the user does not return to them, but
1939     * instead returns to whatever activity preceeded it.
1940     *
1941     * <p>This is useful for cases where you have a logical break in your
1942     * application.  For example, an e-mail application may have a command
1943     * to view an attachment, which launches an image view activity to
1944     * display it.  This activity should be part of the e-mail application's
1945     * task, since it is a part of the task the user is involved in.  However,
1946     * if the user leaves that task, and later selects the e-mail app from
1947     * home, we may like them to return to the conversation they were
1948     * viewing, not the picture attachment, since that is confusing.  By
1949     * setting this flag when launching the image viewer, that viewer and
1950     * any activities it starts will be removed the next time the user returns
1951     * to mail.
1952     */
1953    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
1954    /**
1955     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
1956     * callback from occurring on the current frontmost activity before it is
1957     * paused as the newly-started activity is brought to the front.
1958     *
1959     * <p>Typically, an activity can rely on that callback to indicate that an
1960     * explicit user action has caused their activity to be moved out of the
1961     * foreground. The callback marks an appropriate point in the activity's
1962     * lifecycle for it to dismiss any notifications that it intends to display
1963     * "until the user has seen them," such as a blinking LED.
1964     *
1965     * <p>If an activity is ever started via any non-user-driven events such as
1966     * phone-call receipt or an alarm handler, this flag should be passed to {@link
1967     * Context#startActivity Context.startActivity}, ensuring that the pausing
1968     * activity does not think the user has acknowledged its notification.
1969     */
1970    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
1971    /**
1972     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
1973     * this flag will cause the launched activity to be brought to the front of its
1974     * task's history stack if it is already running.
1975     *
1976     * <p>For example, consider a task consisting of four activities: A, B, C, D.
1977     * If D calls startActivity() with an Intent that resolves to the component
1978     * of activity B, then B will be brought to the front of the history stack,
1979     * with this resulting order:  A, C, D, B.
1980     *
1981     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
1982     * specified.
1983     */
1984    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
1985    /**
1986     * If set, when sending a broadcast only registered receivers will be
1987     * called -- no BroadcastReceiver components will be launched.
1988     */
1989    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
1990    /**
1991     * If set, when sending a broadcast <i>before boot has completed</i> only
1992     * registered receivers will be called -- no BroadcastReceiver components
1993     * will be launched.  Sticky intent state will be recorded properly even
1994     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
1995     * is specified in the broadcast intent, this flag is unnecessary.
1996     *
1997     * <p>This flag is only for use by system sevices as a convenience to
1998     * avoid having to implement a more complex mechanism around detection
1999     * of boot completion.
2000     *
2001     * @hide
2002     */
2003    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2004
2005    // ---------------------------------------------------------------------
2006
2007    private String mAction;
2008    private Uri mData;
2009    private String mType;
2010    private ComponentName mComponent;
2011    private int mFlags;
2012    private HashSet<String> mCategories;
2013    private Bundle mExtras;
2014
2015    // ---------------------------------------------------------------------
2016
2017    /**
2018     * Create an empty intent.
2019     */
2020    public Intent() {
2021    }
2022
2023    /**
2024     * Copy constructor.
2025     */
2026    public Intent(Intent o) {
2027        this.mAction = o.mAction;
2028        this.mData = o.mData;
2029        this.mType = o.mType;
2030        this.mComponent = o.mComponent;
2031        this.mFlags = o.mFlags;
2032        if (o.mCategories != null) {
2033            this.mCategories = new HashSet<String>(o.mCategories);
2034        }
2035        if (o.mExtras != null) {
2036            this.mExtras = new Bundle(o.mExtras);
2037        }
2038    }
2039
2040    @Override
2041    public Object clone() {
2042        return new Intent(this);
2043    }
2044
2045    private Intent(Intent o, boolean all) {
2046        this.mAction = o.mAction;
2047        this.mData = o.mData;
2048        this.mType = o.mType;
2049        this.mComponent = o.mComponent;
2050        if (o.mCategories != null) {
2051            this.mCategories = new HashSet<String>(o.mCategories);
2052        }
2053    }
2054
2055    /**
2056     * Make a clone of only the parts of the Intent that are relevant for
2057     * filter matching: the action, data, type, component, and categories.
2058     */
2059    public Intent cloneFilter() {
2060        return new Intent(this, false);
2061    }
2062
2063    /**
2064     * Create an intent with a given action.  All other fields (data, type,
2065     * class) are null.  Note that the action <em>must</em> be in a
2066     * namespace because Intents are used globally in the system -- for
2067     * example the system VIEW action is android.intent.action.VIEW; an
2068     * application's custom action would be something like
2069     * com.google.app.myapp.CUSTOM_ACTION.
2070     *
2071     * @param action The Intent action, such as ACTION_VIEW.
2072     */
2073    public Intent(String action) {
2074        mAction = action;
2075    }
2076
2077    /**
2078     * Create an intent with a given action and for a given data url.  Note
2079     * that the action <em>must</em> be in a namespace because Intents are
2080     * used globally in the system -- for example the system VIEW action is
2081     * android.intent.action.VIEW; an application's custom action would be
2082     * something like com.google.app.myapp.CUSTOM_ACTION.
2083     *
2084     * @param action The Intent action, such as ACTION_VIEW.
2085     * @param uri The Intent data URI.
2086     */
2087    public Intent(String action, Uri uri) {
2088        mAction = action;
2089        mData = uri;
2090    }
2091
2092    /**
2093     * Create an intent for a specific component.  All other fields (action, data,
2094     * type, class) are null, though they can be modified later with explicit
2095     * calls.  This provides a convenient way to create an intent that is
2096     * intended to execute a hard-coded class name, rather than relying on the
2097     * system to find an appropriate class for you; see {@link #setComponent}
2098     * for more information on the repercussions of this.
2099     *
2100     * @param packageContext A Context of the application package implementing
2101     * this class.
2102     * @param cls The component class that is to be used for the intent.
2103     *
2104     * @see #setClass
2105     * @see #setComponent
2106     * @see #Intent(String, android.net.Uri , Context, Class)
2107     */
2108    public Intent(Context packageContext, Class<?> cls) {
2109        mComponent = new ComponentName(packageContext, cls);
2110    }
2111
2112    /**
2113     * Create an intent for a specific component with a specified action and data.
2114     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2115     * construct the Intent and then calling {@link #setClass} to set its
2116     * class.
2117     *
2118     * @param action The Intent action, such as ACTION_VIEW.
2119     * @param uri The Intent data URI.
2120     * @param packageContext A Context of the application package implementing
2121     * this class.
2122     * @param cls The component class that is to be used for the intent.
2123     *
2124     * @see #Intent(String, android.net.Uri)
2125     * @see #Intent(Context, Class)
2126     * @see #setClass
2127     * @see #setComponent
2128     */
2129    public Intent(String action, Uri uri,
2130            Context packageContext, Class<?> cls) {
2131        mAction = action;
2132        mData = uri;
2133        mComponent = new ComponentName(packageContext, cls);
2134    }
2135
2136    /**
2137     * Create an intent from a URI.  This URI may encode the action,
2138     * category, and other intent fields, if it was returned by toURI().  If
2139     * the Intent was not generate by toURI(), its data will be the entire URI
2140     * and its action will be ACTION_VIEW.
2141     *
2142     * <p>The URI given here must not be relative -- that is, it must include
2143     * the scheme and full path.
2144     *
2145     * @param uri The URI to turn into an Intent.
2146     *
2147     * @return Intent The newly created Intent object.
2148     *
2149     * @see #toURI
2150     */
2151    public static Intent getIntent(String uri) throws URISyntaxException {
2152        int i = 0;
2153        try {
2154            // simple case
2155            i = uri.lastIndexOf("#");
2156            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2157
2158            // old format Intent URI
2159            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2160
2161            // new format
2162            Intent intent = new Intent(ACTION_VIEW);
2163
2164            // fetch data part, if present
2165            if (i > 0) {
2166                intent.mData = Uri.parse(uri.substring(0, i));
2167            }
2168            i += "#Intent;".length();
2169
2170            // loop over contents of Intent, all name=value;
2171            while (!uri.startsWith("end", i)) {
2172                int eq = uri.indexOf('=', i);
2173                int semi = uri.indexOf(';', eq);
2174                String value = uri.substring(eq + 1, semi);
2175
2176                // action
2177                if (uri.startsWith("action=", i)) {
2178                    intent.mAction = value;
2179                }
2180
2181                // categories
2182                else if (uri.startsWith("category=", i)) {
2183                    intent.addCategory(value);
2184                }
2185
2186                // type
2187                else if (uri.startsWith("type=", i)) {
2188                    intent.mType = value;
2189                }
2190
2191                // launch  flags
2192                else if (uri.startsWith("launchFlags=", i)) {
2193                    intent.mFlags = Integer.decode(value).intValue();
2194                }
2195
2196                // component
2197                else if (uri.startsWith("component=", i)) {
2198                    intent.mComponent = ComponentName.unflattenFromString(value);
2199                }
2200
2201                // extra
2202                else {
2203                    String key = Uri.decode(uri.substring(i + 2, eq));
2204                    value = Uri.decode(value);
2205                    // create Bundle if it doesn't already exist
2206                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2207                    Bundle b = intent.mExtras;
2208                    // add EXTRA
2209                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2210                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2211                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2212                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2213                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2214                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2215                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2216                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2217                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2218                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2219                }
2220
2221                // move to the next item
2222                i = semi + 1;
2223            }
2224
2225            return intent;
2226
2227        } catch (IndexOutOfBoundsException e) {
2228            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2229        }
2230    }
2231
2232    public static Intent getIntentOld(String uri) throws URISyntaxException {
2233        Intent intent;
2234
2235        int i = uri.lastIndexOf('#');
2236        if (i >= 0) {
2237            Uri data = null;
2238            String action = null;
2239            if (i > 0) {
2240                data = Uri.parse(uri.substring(0, i));
2241            }
2242
2243            i++;
2244
2245            if (uri.regionMatches(i, "action(", 0, 7)) {
2246                i += 7;
2247                int j = uri.indexOf(')', i);
2248                action = uri.substring(i, j);
2249                i = j + 1;
2250            }
2251
2252            intent = new Intent(action, data);
2253
2254            if (uri.regionMatches(i, "categories(", 0, 11)) {
2255                i += 11;
2256                int j = uri.indexOf(')', i);
2257                while (i < j) {
2258                    int sep = uri.indexOf('!', i);
2259                    if (sep < 0) sep = j;
2260                    if (i < sep) {
2261                        intent.addCategory(uri.substring(i, sep));
2262                    }
2263                    i = sep + 1;
2264                }
2265                i = j + 1;
2266            }
2267
2268            if (uri.regionMatches(i, "type(", 0, 5)) {
2269                i += 5;
2270                int j = uri.indexOf(')', i);
2271                intent.mType = uri.substring(i, j);
2272                i = j + 1;
2273            }
2274
2275            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2276                i += 12;
2277                int j = uri.indexOf(')', i);
2278                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2279                i = j + 1;
2280            }
2281
2282            if (uri.regionMatches(i, "component(", 0, 10)) {
2283                i += 10;
2284                int j = uri.indexOf(')', i);
2285                int sep = uri.indexOf('!', i);
2286                if (sep >= 0 && sep < j) {
2287                    String pkg = uri.substring(i, sep);
2288                    String cls = uri.substring(sep + 1, j);
2289                    intent.mComponent = new ComponentName(pkg, cls);
2290                }
2291                i = j + 1;
2292            }
2293
2294            if (uri.regionMatches(i, "extras(", 0, 7)) {
2295                i += 7;
2296
2297                final int closeParen = uri.indexOf(')', i);
2298                if (closeParen == -1) throw new URISyntaxException(uri,
2299                        "EXTRA missing trailing ')'", i);
2300
2301                while (i < closeParen) {
2302                    // fetch the key value
2303                    int j = uri.indexOf('=', i);
2304                    if (j <= i + 1 || i >= closeParen) {
2305                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2306                    }
2307                    char type = uri.charAt(i);
2308                    i++;
2309                    String key = uri.substring(i, j);
2310                    i = j + 1;
2311
2312                    // get type-value
2313                    j = uri.indexOf('!', i);
2314                    if (j == -1 || j >= closeParen) j = closeParen;
2315                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2316                    String value = uri.substring(i, j);
2317                    i = j;
2318
2319                    // create Bundle if it doesn't already exist
2320                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2321
2322                    // add item to bundle
2323                    try {
2324                        switch (type) {
2325                            case 'S':
2326                                intent.mExtras.putString(key, Uri.decode(value));
2327                                break;
2328                            case 'B':
2329                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2330                                break;
2331                            case 'b':
2332                                intent.mExtras.putByte(key, Byte.parseByte(value));
2333                                break;
2334                            case 'c':
2335                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2336                                break;
2337                            case 'd':
2338                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2339                                break;
2340                            case 'f':
2341                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2342                                break;
2343                            case 'i':
2344                                intent.mExtras.putInt(key, Integer.parseInt(value));
2345                                break;
2346                            case 'l':
2347                                intent.mExtras.putLong(key, Long.parseLong(value));
2348                                break;
2349                            case 's':
2350                                intent.mExtras.putShort(key, Short.parseShort(value));
2351                                break;
2352                            default:
2353                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2354                        }
2355                    } catch (NumberFormatException e) {
2356                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2357                    }
2358
2359                    char ch = uri.charAt(i);
2360                    if (ch == ')') break;
2361                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2362                    i++;
2363                }
2364            }
2365
2366            if (intent.mAction == null) {
2367                // By default, if no action is specified, then use VIEW.
2368                intent.mAction = ACTION_VIEW;
2369            }
2370
2371        } else {
2372            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2373        }
2374
2375        return intent;
2376    }
2377
2378    /**
2379     * Retrieve the general action to be performed, such as
2380     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2381     * the information in the intent should be interpreted -- most importantly,
2382     * what to do with the data returned by {@link #getData}.
2383     *
2384     * @return The action of this intent or null if none is specified.
2385     *
2386     * @see #setAction
2387     */
2388    public String getAction() {
2389        return mAction;
2390    }
2391
2392    /**
2393     * Retrieve data this intent is operating on.  This URI specifies the name
2394     * of the data; often it uses the content: scheme, specifying data in a
2395     * content provider.  Other schemes may be handled by specific activities,
2396     * such as http: by the web browser.
2397     *
2398     * @return The URI of the data this intent is targeting or null.
2399     *
2400     * @see #getScheme
2401     * @see #setData
2402     */
2403    public Uri getData() {
2404        return mData;
2405    }
2406
2407    /**
2408     * The same as {@link #getData()}, but returns the URI as an encoded
2409     * String.
2410     */
2411    public String getDataString() {
2412        return mData != null ? mData.toString() : null;
2413    }
2414
2415    /**
2416     * Return the scheme portion of the intent's data.  If the data is null or
2417     * does not include a scheme, null is returned.  Otherwise, the scheme
2418     * prefix without the final ':' is returned, i.e. "http".
2419     *
2420     * <p>This is the same as calling getData().getScheme() (and checking for
2421     * null data).
2422     *
2423     * @return The scheme of this intent.
2424     *
2425     * @see #getData
2426     */
2427    public String getScheme() {
2428        return mData != null ? mData.getScheme() : null;
2429    }
2430
2431    /**
2432     * Retrieve any explicit MIME type included in the intent.  This is usually
2433     * null, as the type is determined by the intent data.
2434     *
2435     * @return If a type was manually set, it is returned; else null is
2436     *         returned.
2437     *
2438     * @see #resolveType(ContentResolver)
2439     * @see #setType
2440     */
2441    public String getType() {
2442        return mType;
2443    }
2444
2445    /**
2446     * Return the MIME data type of this intent.  If the type field is
2447     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2448     * the type of that data is returned.  If neither fields are set, a null is
2449     * returned.
2450     *
2451     * @return The MIME type of this intent.
2452     *
2453     * @see #getType
2454     * @see #resolveType(ContentResolver)
2455     */
2456    public String resolveType(Context context) {
2457        return resolveType(context.getContentResolver());
2458    }
2459
2460    /**
2461     * Return the MIME data type of this intent.  If the type field is
2462     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2463     * the type of that data is returned.  If neither fields are set, a null is
2464     * returned.
2465     *
2466     * @param resolver A ContentResolver that can be used to determine the MIME
2467     *                 type of the intent's data.
2468     *
2469     * @return The MIME type of this intent.
2470     *
2471     * @see #getType
2472     * @see #resolveType(Context)
2473     */
2474    public String resolveType(ContentResolver resolver) {
2475        if (mType != null) {
2476            return mType;
2477        }
2478        if (mData != null) {
2479            if ("content".equals(mData.getScheme())) {
2480                return resolver.getType(mData);
2481            }
2482        }
2483        return null;
2484    }
2485
2486    /**
2487     * Return the MIME data type of this intent, only if it will be needed for
2488     * intent resolution.  This is not generally useful for application code;
2489     * it is used by the frameworks for communicating with back-end system
2490     * services.
2491     *
2492     * @param resolver A ContentResolver that can be used to determine the MIME
2493     *                 type of the intent's data.
2494     *
2495     * @return The MIME type of this intent, or null if it is unknown or not
2496     *         needed.
2497     */
2498    public String resolveTypeIfNeeded(ContentResolver resolver) {
2499        if (mComponent != null) {
2500            return mType;
2501        }
2502        return resolveType(resolver);
2503    }
2504
2505    /**
2506     * Check if an category exists in the intent.
2507     *
2508     * @param category The category to check.
2509     *
2510     * @return boolean True if the intent contains the category, else false.
2511     *
2512     * @see #getCategories
2513     * @see #addCategory
2514     */
2515    public boolean hasCategory(String category) {
2516        return mCategories != null && mCategories.contains(category);
2517    }
2518
2519    /**
2520     * Return the set of all categories in the intent.  If there are no categories,
2521     * returns NULL.
2522     *
2523     * @return Set The set of categories you can examine.  Do not modify!
2524     *
2525     * @see #hasCategory
2526     * @see #addCategory
2527     */
2528    public Set<String> getCategories() {
2529        return mCategories;
2530    }
2531
2532    /**
2533     * Sets the ClassLoader that will be used when unmarshalling
2534     * any Parcelable values from the extras of this Intent.
2535     *
2536     * @param loader a ClassLoader, or null to use the default loader
2537     * at the time of unmarshalling.
2538     */
2539    public void setExtrasClassLoader(ClassLoader loader) {
2540        if (mExtras != null) {
2541            mExtras.setClassLoader(loader);
2542        }
2543    }
2544
2545    /**
2546     * Returns true if an extra value is associated with the given name.
2547     * @param name the extra's name
2548     * @return true if the given extra is present.
2549     */
2550    public boolean hasExtra(String name) {
2551        return mExtras != null && mExtras.containsKey(name);
2552    }
2553
2554    /**
2555     * Returns true if the Intent's extras contain a parcelled file descriptor.
2556     * @return true if the Intent contains a parcelled file descriptor.
2557     */
2558    public boolean hasFileDescriptors() {
2559        return mExtras != null && mExtras.hasFileDescriptors();
2560    }
2561
2562    /**
2563     * Retrieve extended data from the intent.
2564     *
2565     * @param name The name of the desired item.
2566     *
2567     * @return the value of an item that previously added with putExtra()
2568     * or null if none was found.
2569     *
2570     * @deprecated
2571     * @hide
2572     */
2573    @Deprecated
2574    public Object getExtra(String name) {
2575        return getExtra(name, null);
2576    }
2577
2578    /**
2579     * Retrieve extended data from the intent.
2580     *
2581     * @param name The name of the desired item.
2582     * @param defaultValue the value to be returned if no value of the desired
2583     * type is stored with the given name.
2584     *
2585     * @return the value of an item that previously added with putExtra()
2586     * or the default value if none was found.
2587     *
2588     * @see #putExtra(String, boolean)
2589     */
2590    public boolean getBooleanExtra(String name, boolean defaultValue) {
2591        return mExtras == null ? defaultValue :
2592            mExtras.getBoolean(name, defaultValue);
2593    }
2594
2595    /**
2596     * Retrieve extended data from the intent.
2597     *
2598     * @param name The name of the desired item.
2599     * @param defaultValue the value to be returned if no value of the desired
2600     * type is stored with the given name.
2601     *
2602     * @return the value of an item that previously added with putExtra()
2603     * or the default value if none was found.
2604     *
2605     * @see #putExtra(String, byte)
2606     */
2607    public byte getByteExtra(String name, byte defaultValue) {
2608        return mExtras == null ? defaultValue :
2609            mExtras.getByte(name, defaultValue);
2610    }
2611
2612    /**
2613     * Retrieve extended data from the intent.
2614     *
2615     * @param name The name of the desired item.
2616     * @param defaultValue the value to be returned if no value of the desired
2617     * type is stored with the given name.
2618     *
2619     * @return the value of an item that previously added with putExtra()
2620     * or the default value if none was found.
2621     *
2622     * @see #putExtra(String, short)
2623     */
2624    public short getShortExtra(String name, short defaultValue) {
2625        return mExtras == null ? defaultValue :
2626            mExtras.getShort(name, defaultValue);
2627    }
2628
2629    /**
2630     * Retrieve extended data from the intent.
2631     *
2632     * @param name The name of the desired item.
2633     * @param defaultValue the value to be returned if no value of the desired
2634     * type is stored with the given name.
2635     *
2636     * @return the value of an item that previously added with putExtra()
2637     * or the default value if none was found.
2638     *
2639     * @see #putExtra(String, char)
2640     */
2641    public char getCharExtra(String name, char defaultValue) {
2642        return mExtras == null ? defaultValue :
2643            mExtras.getChar(name, defaultValue);
2644    }
2645
2646    /**
2647     * Retrieve extended data from the intent.
2648     *
2649     * @param name The name of the desired item.
2650     * @param defaultValue the value to be returned if no value of the desired
2651     * type is stored with the given name.
2652     *
2653     * @return the value of an item that previously added with putExtra()
2654     * or the default value if none was found.
2655     *
2656     * @see #putExtra(String, int)
2657     */
2658    public int getIntExtra(String name, int defaultValue) {
2659        return mExtras == null ? defaultValue :
2660            mExtras.getInt(name, defaultValue);
2661    }
2662
2663    /**
2664     * Retrieve extended data from the intent.
2665     *
2666     * @param name The name of the desired item.
2667     * @param defaultValue the value to be returned if no value of the desired
2668     * type is stored with the given name.
2669     *
2670     * @return the value of an item that previously added with putExtra()
2671     * or the default value if none was found.
2672     *
2673     * @see #putExtra(String, long)
2674     */
2675    public long getLongExtra(String name, long defaultValue) {
2676        return mExtras == null ? defaultValue :
2677            mExtras.getLong(name, defaultValue);
2678    }
2679
2680    /**
2681     * Retrieve extended data from the intent.
2682     *
2683     * @param name The name of the desired item.
2684     * @param defaultValue the value to be returned if no value of the desired
2685     * type is stored with the given name.
2686     *
2687     * @return the value of an item that previously added with putExtra(),
2688     * or the default value if no such item is present
2689     *
2690     * @see #putExtra(String, float)
2691     */
2692    public float getFloatExtra(String name, float defaultValue) {
2693        return mExtras == null ? defaultValue :
2694            mExtras.getFloat(name, defaultValue);
2695    }
2696
2697    /**
2698     * Retrieve extended data from the intent.
2699     *
2700     * @param name The name of the desired item.
2701     * @param defaultValue the value to be returned if no value of the desired
2702     * type is stored with the given name.
2703     *
2704     * @return the value of an item that previously added with putExtra()
2705     * or the default value if none was found.
2706     *
2707     * @see #putExtra(String, double)
2708     */
2709    public double getDoubleExtra(String name, double defaultValue) {
2710        return mExtras == null ? defaultValue :
2711            mExtras.getDouble(name, defaultValue);
2712    }
2713
2714    /**
2715     * Retrieve extended data from the intent.
2716     *
2717     * @param name The name of the desired item.
2718     *
2719     * @return the value of an item that previously added with putExtra()
2720     * or null if no String value was found.
2721     *
2722     * @see #putExtra(String, String)
2723     */
2724    public String getStringExtra(String name) {
2725        return mExtras == null ? null : mExtras.getString(name);
2726    }
2727
2728    /**
2729     * Retrieve extended data from the intent.
2730     *
2731     * @param name The name of the desired item.
2732     *
2733     * @return the value of an item that previously added with putExtra()
2734     * or null if no CharSequence value was found.
2735     *
2736     * @see #putExtra(String, CharSequence)
2737     */
2738    public CharSequence getCharSequenceExtra(String name) {
2739        return mExtras == null ? null : mExtras.getCharSequence(name);
2740    }
2741
2742    /**
2743     * Retrieve extended data from the intent.
2744     *
2745     * @param name The name of the desired item.
2746     *
2747     * @return the value of an item that previously added with putExtra()
2748     * or null if no Parcelable value was found.
2749     *
2750     * @see #putExtra(String, Parcelable)
2751     */
2752    public <T extends Parcelable> T getParcelableExtra(String name) {
2753        return mExtras == null ? null : mExtras.<T>getParcelable(name);
2754    }
2755
2756    /**
2757     * Retrieve extended data from the intent.
2758     *
2759     * @param name The name of the desired item.
2760     *
2761     * @return the value of an item that previously added with putExtra()
2762     * or null if no Parcelable[] value was found.
2763     *
2764     * @see #putExtra(String, Parcelable[])
2765     */
2766    public Parcelable[] getParcelableArrayExtra(String name) {
2767        return mExtras == null ? null : mExtras.getParcelableArray(name);
2768    }
2769
2770    /**
2771     * Retrieve extended data from the intent.
2772     *
2773     * @param name The name of the desired item.
2774     *
2775     * @return the value of an item that previously added with putExtra()
2776     * or null if no ArrayList<Parcelable> value was found.
2777     *
2778     * @see #putParcelableArrayListExtra(String, ArrayList)
2779     */
2780    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
2781        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
2782    }
2783
2784    /**
2785     * Retrieve extended data from the intent.
2786     *
2787     * @param name The name of the desired item.
2788     *
2789     * @return the value of an item that previously added with putExtra()
2790     * or null if no Serializable value was found.
2791     *
2792     * @see #putExtra(String, Serializable)
2793     */
2794    public Serializable getSerializableExtra(String name) {
2795        return mExtras == null ? null : mExtras.getSerializable(name);
2796    }
2797
2798    /**
2799     * Retrieve extended data from the intent.
2800     *
2801     * @param name The name of the desired item.
2802     *
2803     * @return the value of an item that previously added with putExtra()
2804     * or null if no ArrayList<Integer> value was found.
2805     *
2806     * @see #putIntegerArrayListExtra(String, ArrayList)
2807     */
2808    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
2809        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
2810    }
2811
2812    /**
2813     * Retrieve extended data from the intent.
2814     *
2815     * @param name The name of the desired item.
2816     *
2817     * @return the value of an item that previously added with putExtra()
2818     * or null if no ArrayList<String> value was found.
2819     *
2820     * @see #putStringArrayListExtra(String, ArrayList)
2821     */
2822    public ArrayList<String> getStringArrayListExtra(String name) {
2823        return mExtras == null ? null : mExtras.getStringArrayList(name);
2824    }
2825
2826    /**
2827     * Retrieve extended data from the intent.
2828     *
2829     * @param name The name of the desired item.
2830     *
2831     * @return the value of an item that previously added with putExtra()
2832     * or null if no boolean array value was found.
2833     *
2834     * @see #putExtra(String, boolean[])
2835     */
2836    public boolean[] getBooleanArrayExtra(String name) {
2837        return mExtras == null ? null : mExtras.getBooleanArray(name);
2838    }
2839
2840    /**
2841     * Retrieve extended data from the intent.
2842     *
2843     * @param name The name of the desired item.
2844     *
2845     * @return the value of an item that previously added with putExtra()
2846     * or null if no byte array value was found.
2847     *
2848     * @see #putExtra(String, byte[])
2849     */
2850    public byte[] getByteArrayExtra(String name) {
2851        return mExtras == null ? null : mExtras.getByteArray(name);
2852    }
2853
2854    /**
2855     * Retrieve extended data from the intent.
2856     *
2857     * @param name The name of the desired item.
2858     *
2859     * @return the value of an item that previously added with putExtra()
2860     * or null if no short array value was found.
2861     *
2862     * @see #putExtra(String, short[])
2863     */
2864    public short[] getShortArrayExtra(String name) {
2865        return mExtras == null ? null : mExtras.getShortArray(name);
2866    }
2867
2868    /**
2869     * Retrieve extended data from the intent.
2870     *
2871     * @param name The name of the desired item.
2872     *
2873     * @return the value of an item that previously added with putExtra()
2874     * or null if no char array value was found.
2875     *
2876     * @see #putExtra(String, char[])
2877     */
2878    public char[] getCharArrayExtra(String name) {
2879        return mExtras == null ? null : mExtras.getCharArray(name);
2880    }
2881
2882    /**
2883     * Retrieve extended data from the intent.
2884     *
2885     * @param name The name of the desired item.
2886     *
2887     * @return the value of an item that previously added with putExtra()
2888     * or null if no int array value was found.
2889     *
2890     * @see #putExtra(String, int[])
2891     */
2892    public int[] getIntArrayExtra(String name) {
2893        return mExtras == null ? null : mExtras.getIntArray(name);
2894    }
2895
2896    /**
2897     * Retrieve extended data from the intent.
2898     *
2899     * @param name The name of the desired item.
2900     *
2901     * @return the value of an item that previously added with putExtra()
2902     * or null if no long array value was found.
2903     *
2904     * @see #putExtra(String, long[])
2905     */
2906    public long[] getLongArrayExtra(String name) {
2907        return mExtras == null ? null : mExtras.getLongArray(name);
2908    }
2909
2910    /**
2911     * Retrieve extended data from the intent.
2912     *
2913     * @param name The name of the desired item.
2914     *
2915     * @return the value of an item that previously added with putExtra()
2916     * or null if no float array value was found.
2917     *
2918     * @see #putExtra(String, float[])
2919     */
2920    public float[] getFloatArrayExtra(String name) {
2921        return mExtras == null ? null : mExtras.getFloatArray(name);
2922    }
2923
2924    /**
2925     * Retrieve extended data from the intent.
2926     *
2927     * @param name The name of the desired item.
2928     *
2929     * @return the value of an item that previously added with putExtra()
2930     * or null if no double array value was found.
2931     *
2932     * @see #putExtra(String, double[])
2933     */
2934    public double[] getDoubleArrayExtra(String name) {
2935        return mExtras == null ? null : mExtras.getDoubleArray(name);
2936    }
2937
2938    /**
2939     * Retrieve extended data from the intent.
2940     *
2941     * @param name The name of the desired item.
2942     *
2943     * @return the value of an item that previously added with putExtra()
2944     * or null if no String array value was found.
2945     *
2946     * @see #putExtra(String, String[])
2947     */
2948    public String[] getStringArrayExtra(String name) {
2949        return mExtras == null ? null : mExtras.getStringArray(name);
2950    }
2951
2952    /**
2953     * Retrieve extended data from the intent.
2954     *
2955     * @param name The name of the desired item.
2956     *
2957     * @return the value of an item that previously added with putExtra()
2958     * or null if no Bundle value was found.
2959     *
2960     * @see #putExtra(String, Bundle)
2961     */
2962    public Bundle getBundleExtra(String name) {
2963        return mExtras == null ? null : mExtras.getBundle(name);
2964    }
2965
2966    /**
2967     * Retrieve extended data from the intent.
2968     *
2969     * @param name The name of the desired item.
2970     *
2971     * @return the value of an item that previously added with putExtra()
2972     * or null if no IBinder value was found.
2973     *
2974     * @see #putExtra(String, IBinder)
2975     *
2976     * @deprecated
2977     * @hide
2978     */
2979    @Deprecated
2980    public IBinder getIBinderExtra(String name) {
2981        return mExtras == null ? null : mExtras.getIBinder(name);
2982    }
2983
2984    /**
2985     * Retrieve extended data from the intent.
2986     *
2987     * @param name The name of the desired item.
2988     * @param defaultValue The default value to return in case no item is
2989     * associated with the key 'name'
2990     *
2991     * @return the value of an item that previously added with putExtra()
2992     * or defaultValue if none was found.
2993     *
2994     * @see #putExtra
2995     *
2996     * @deprecated
2997     * @hide
2998     */
2999    @Deprecated
3000    public Object getExtra(String name, Object defaultValue) {
3001        Object result = defaultValue;
3002        if (mExtras != null) {
3003            Object result2 = mExtras.get(name);
3004            if (result2 != null) {
3005                result = result2;
3006            }
3007        }
3008
3009        return result;
3010    }
3011
3012    /**
3013     * Retrieves a map of extended data from the intent.
3014     *
3015     * @return the map of all extras previously added with putExtra(),
3016     * or null if none have been added.
3017     */
3018    public Bundle getExtras() {
3019        return (mExtras != null)
3020                ? new Bundle(mExtras)
3021                : null;
3022    }
3023
3024    /**
3025     * Retrieve any special flags associated with this intent.  You will
3026     * normally just set them with {@link #setFlags} and let the system
3027     * take the appropriate action with them.
3028     *
3029     * @return int The currently set flags.
3030     *
3031     * @see #setFlags
3032     */
3033    public int getFlags() {
3034        return mFlags;
3035    }
3036
3037    /**
3038     * Retrieve the concrete component associated with the intent.  When receiving
3039     * an intent, this is the component that was found to best handle it (that is,
3040     * yourself) and will always be non-null; in all other cases it will be
3041     * null unless explicitly set.
3042     *
3043     * @return The name of the application component to handle the intent.
3044     *
3045     * @see #resolveActivity
3046     * @see #setComponent
3047     */
3048    public ComponentName getComponent() {
3049        return mComponent;
3050    }
3051
3052    /**
3053     * Return the Activity component that should be used to handle this intent.
3054     * The appropriate component is determined based on the information in the
3055     * intent, evaluated as follows:
3056     *
3057     * <p>If {@link #getComponent} returns an explicit class, that is returned
3058     * without any further consideration.
3059     *
3060     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3061     * category to be considered.
3062     *
3063     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3064     * action.
3065     *
3066     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3067     * this type.
3068     *
3069     * <p>If {@link #addCategory} has added any categories, the activity must
3070     * handle ALL of the categories specified.
3071     *
3072     * <p>If there are no activities that satisfy all of these conditions, a
3073     * null string is returned.
3074     *
3075     * <p>If multiple activities are found to satisfy the intent, the one with
3076     * the highest priority will be used.  If there are multiple activities
3077     * with the same priority, the system will either pick the best activity
3078     * based on user preference, or resolve to a system class that will allow
3079     * the user to pick an activity and forward from there.
3080     *
3081     * <p>This method is implemented simply by calling
3082     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3083     * true.</p>
3084     * <p> This API is called for you as part of starting an activity from an
3085     * intent.  You do not normally need to call it yourself.</p>
3086     *
3087     * @param pm The package manager with which to resolve the Intent.
3088     *
3089     * @return Name of the component implementing an activity that can
3090     *         display the intent.
3091     *
3092     * @see #setComponent
3093     * @see #getComponent
3094     * @see #resolveActivityInfo
3095     */
3096    public ComponentName resolveActivity(PackageManager pm) {
3097        if (mComponent != null) {
3098            return mComponent;
3099        }
3100
3101        ResolveInfo info = pm.resolveActivity(
3102            this, PackageManager.MATCH_DEFAULT_ONLY);
3103        if (info != null) {
3104            return new ComponentName(
3105                    info.activityInfo.applicationInfo.packageName,
3106                    info.activityInfo.name);
3107        }
3108
3109        return null;
3110    }
3111
3112    /**
3113     * Resolve the Intent into an {@link ActivityInfo}
3114     * describing the activity that should execute the intent.  Resolution
3115     * follows the same rules as described for {@link #resolveActivity}, but
3116     * you get back the completely information about the resolved activity
3117     * instead of just its class name.
3118     *
3119     * @param pm The package manager with which to resolve the Intent.
3120     * @param flags Addition information to retrieve as per
3121     * {@link PackageManager#getActivityInfo(ComponentName, int)
3122     * PackageManager.getActivityInfo()}.
3123     *
3124     * @return PackageManager.ActivityInfo
3125     *
3126     * @see #resolveActivity
3127     */
3128    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3129        ActivityInfo ai = null;
3130        if (mComponent != null) {
3131            try {
3132                ai = pm.getActivityInfo(mComponent, flags);
3133            } catch (PackageManager.NameNotFoundException e) {
3134                // ignore
3135            }
3136        } else {
3137            ResolveInfo info = pm.resolveActivity(
3138                this, PackageManager.MATCH_DEFAULT_ONLY);
3139            if (info != null) {
3140                ai = info.activityInfo;
3141            }
3142        }
3143
3144        return ai;
3145    }
3146
3147    /**
3148     * Set the general action to be performed.
3149     *
3150     * @param action An action name, such as ACTION_VIEW.  Application-specific
3151     *               actions should be prefixed with the vendor's package name.
3152     *
3153     * @return Returns the same Intent object, for chaining multiple calls
3154     * into a single statement.
3155     *
3156     * @see #getAction
3157     */
3158    public Intent setAction(String action) {
3159        mAction = action;
3160        return this;
3161    }
3162
3163    /**
3164     * Set the data this intent is operating on.  This method automatically
3165     * clears any type that was previously set by {@link #setType}.
3166     *
3167     * @param data The URI of the data this intent is now targeting.
3168     *
3169     * @return Returns the same Intent object, for chaining multiple calls
3170     * into a single statement.
3171     *
3172     * @see #getData
3173     * @see #setType
3174     * @see #setDataAndType
3175     */
3176    public Intent setData(Uri data) {
3177        mData = data;
3178        mType = null;
3179        return this;
3180    }
3181
3182    /**
3183     * Set an explicit MIME data type.  This is used to create intents that
3184     * only specify a type and not data, for example to indicate the type of
3185     * data to return.  This method automatically clears any data that was
3186     * previously set by {@link #setData}.
3187     *
3188     * @param type The MIME type of the data being handled by this intent.
3189     *
3190     * @return Returns the same Intent object, for chaining multiple calls
3191     * into a single statement.
3192     *
3193     * @see #getType
3194     * @see #setData
3195     * @see #setDataAndType
3196     */
3197    public Intent setType(String type) {
3198        mData = null;
3199        mType = type;
3200        return this;
3201    }
3202
3203    /**
3204     * (Usually optional) Set the data for the intent along with an explicit
3205     * MIME data type.  This method should very rarely be used -- it allows you
3206     * to override the MIME type that would ordinarily be inferred from the
3207     * data with your own type given here.
3208     *
3209     * @param data The URI of the data this intent is now targeting.
3210     * @param type The MIME type of the data being handled by this intent.
3211     *
3212     * @return Returns the same Intent object, for chaining multiple calls
3213     * into a single statement.
3214     *
3215     * @see #setData
3216     * @see #setType
3217     */
3218    public Intent setDataAndType(Uri data, String type) {
3219        mData = data;
3220        mType = type;
3221        return this;
3222    }
3223
3224    /**
3225     * Add a new category to the intent.  Categories provide additional detail
3226     * about the action the intent is perform.  When resolving an intent, only
3227     * activities that provide <em>all</em> of the requested categories will be
3228     * used.
3229     *
3230     * @param category The desired category.  This can be either one of the
3231     *               predefined Intent categories, or a custom category in your own
3232     *               namespace.
3233     *
3234     * @return Returns the same Intent object, for chaining multiple calls
3235     * into a single statement.
3236     *
3237     * @see #hasCategory
3238     * @see #removeCategory
3239     */
3240    public Intent addCategory(String category) {
3241        if (mCategories == null) {
3242            mCategories = new HashSet<String>();
3243        }
3244        mCategories.add(category);
3245        return this;
3246    }
3247
3248    /**
3249     * Remove an category from an intent.
3250     *
3251     * @param category The category to remove.
3252     *
3253     * @see #addCategory
3254     */
3255    public void removeCategory(String category) {
3256        if (mCategories != null) {
3257            mCategories.remove(category);
3258            if (mCategories.size() == 0) {
3259                mCategories = null;
3260            }
3261        }
3262    }
3263
3264    /**
3265     * Add extended data to the intent.  The name must include a package
3266     * prefix, for example the app com.android.contacts would use names
3267     * like "com.android.contacts.ShowAll".
3268     *
3269     * @param name The name of the extra data, with package prefix.
3270     * @param value The boolean data value.
3271     *
3272     * @return Returns the same Intent object, for chaining multiple calls
3273     * into a single statement.
3274     *
3275     * @see #putExtras
3276     * @see #removeExtra
3277     * @see #getBooleanExtra(String, boolean)
3278     */
3279    public Intent putExtra(String name, boolean value) {
3280        if (mExtras == null) {
3281            mExtras = new Bundle();
3282        }
3283        mExtras.putBoolean(name, value);
3284        return this;
3285    }
3286
3287    /**
3288     * Add extended data to the intent.  The name must include a package
3289     * prefix, for example the app com.android.contacts would use names
3290     * like "com.android.contacts.ShowAll".
3291     *
3292     * @param name The name of the extra data, with package prefix.
3293     * @param value The byte data value.
3294     *
3295     * @return Returns the same Intent object, for chaining multiple calls
3296     * into a single statement.
3297     *
3298     * @see #putExtras
3299     * @see #removeExtra
3300     * @see #getByteExtra(String, byte)
3301     */
3302    public Intent putExtra(String name, byte value) {
3303        if (mExtras == null) {
3304            mExtras = new Bundle();
3305        }
3306        mExtras.putByte(name, value);
3307        return this;
3308    }
3309
3310    /**
3311     * Add extended data to the intent.  The name must include a package
3312     * prefix, for example the app com.android.contacts would use names
3313     * like "com.android.contacts.ShowAll".
3314     *
3315     * @param name The name of the extra data, with package prefix.
3316     * @param value The char data value.
3317     *
3318     * @return Returns the same Intent object, for chaining multiple calls
3319     * into a single statement.
3320     *
3321     * @see #putExtras
3322     * @see #removeExtra
3323     * @see #getCharExtra(String, char)
3324     */
3325    public Intent putExtra(String name, char value) {
3326        if (mExtras == null) {
3327            mExtras = new Bundle();
3328        }
3329        mExtras.putChar(name, value);
3330        return this;
3331    }
3332
3333    /**
3334     * Add extended data to the intent.  The name must include a package
3335     * prefix, for example the app com.android.contacts would use names
3336     * like "com.android.contacts.ShowAll".
3337     *
3338     * @param name The name of the extra data, with package prefix.
3339     * @param value The short data value.
3340     *
3341     * @return Returns the same Intent object, for chaining multiple calls
3342     * into a single statement.
3343     *
3344     * @see #putExtras
3345     * @see #removeExtra
3346     * @see #getShortExtra(String, short)
3347     */
3348    public Intent putExtra(String name, short value) {
3349        if (mExtras == null) {
3350            mExtras = new Bundle();
3351        }
3352        mExtras.putShort(name, value);
3353        return this;
3354    }
3355
3356    /**
3357     * Add extended data to the intent.  The name must include a package
3358     * prefix, for example the app com.android.contacts would use names
3359     * like "com.android.contacts.ShowAll".
3360     *
3361     * @param name The name of the extra data, with package prefix.
3362     * @param value The integer data value.
3363     *
3364     * @return Returns the same Intent object, for chaining multiple calls
3365     * into a single statement.
3366     *
3367     * @see #putExtras
3368     * @see #removeExtra
3369     * @see #getIntExtra(String, int)
3370     */
3371    public Intent putExtra(String name, int value) {
3372        if (mExtras == null) {
3373            mExtras = new Bundle();
3374        }
3375        mExtras.putInt(name, value);
3376        return this;
3377    }
3378
3379    /**
3380     * Add extended data to the intent.  The name must include a package
3381     * prefix, for example the app com.android.contacts would use names
3382     * like "com.android.contacts.ShowAll".
3383     *
3384     * @param name The name of the extra data, with package prefix.
3385     * @param value The long data value.
3386     *
3387     * @return Returns the same Intent object, for chaining multiple calls
3388     * into a single statement.
3389     *
3390     * @see #putExtras
3391     * @see #removeExtra
3392     * @see #getLongExtra(String, long)
3393     */
3394    public Intent putExtra(String name, long value) {
3395        if (mExtras == null) {
3396            mExtras = new Bundle();
3397        }
3398        mExtras.putLong(name, value);
3399        return this;
3400    }
3401
3402    /**
3403     * Add extended data to the intent.  The name must include a package
3404     * prefix, for example the app com.android.contacts would use names
3405     * like "com.android.contacts.ShowAll".
3406     *
3407     * @param name The name of the extra data, with package prefix.
3408     * @param value The float data value.
3409     *
3410     * @return Returns the same Intent object, for chaining multiple calls
3411     * into a single statement.
3412     *
3413     * @see #putExtras
3414     * @see #removeExtra
3415     * @see #getFloatExtra(String, float)
3416     */
3417    public Intent putExtra(String name, float value) {
3418        if (mExtras == null) {
3419            mExtras = new Bundle();
3420        }
3421        mExtras.putFloat(name, value);
3422        return this;
3423    }
3424
3425    /**
3426     * Add extended data to the intent.  The name must include a package
3427     * prefix, for example the app com.android.contacts would use names
3428     * like "com.android.contacts.ShowAll".
3429     *
3430     * @param name The name of the extra data, with package prefix.
3431     * @param value The double data value.
3432     *
3433     * @return Returns the same Intent object, for chaining multiple calls
3434     * into a single statement.
3435     *
3436     * @see #putExtras
3437     * @see #removeExtra
3438     * @see #getDoubleExtra(String, double)
3439     */
3440    public Intent putExtra(String name, double value) {
3441        if (mExtras == null) {
3442            mExtras = new Bundle();
3443        }
3444        mExtras.putDouble(name, value);
3445        return this;
3446    }
3447
3448    /**
3449     * Add extended data to the intent.  The name must include a package
3450     * prefix, for example the app com.android.contacts would use names
3451     * like "com.android.contacts.ShowAll".
3452     *
3453     * @param name The name of the extra data, with package prefix.
3454     * @param value The String data value.
3455     *
3456     * @return Returns the same Intent object, for chaining multiple calls
3457     * into a single statement.
3458     *
3459     * @see #putExtras
3460     * @see #removeExtra
3461     * @see #getStringExtra(String)
3462     */
3463    public Intent putExtra(String name, String value) {
3464        if (mExtras == null) {
3465            mExtras = new Bundle();
3466        }
3467        mExtras.putString(name, value);
3468        return this;
3469    }
3470
3471    /**
3472     * Add extended data to the intent.  The name must include a package
3473     * prefix, for example the app com.android.contacts would use names
3474     * like "com.android.contacts.ShowAll".
3475     *
3476     * @param name The name of the extra data, with package prefix.
3477     * @param value The CharSequence data value.
3478     *
3479     * @return Returns the same Intent object, for chaining multiple calls
3480     * into a single statement.
3481     *
3482     * @see #putExtras
3483     * @see #removeExtra
3484     * @see #getCharSequenceExtra(String)
3485     */
3486    public Intent putExtra(String name, CharSequence value) {
3487        if (mExtras == null) {
3488            mExtras = new Bundle();
3489        }
3490        mExtras.putCharSequence(name, value);
3491        return this;
3492    }
3493
3494    /**
3495     * Add extended data to the intent.  The name must include a package
3496     * prefix, for example the app com.android.contacts would use names
3497     * like "com.android.contacts.ShowAll".
3498     *
3499     * @param name The name of the extra data, with package prefix.
3500     * @param value The Parcelable data value.
3501     *
3502     * @return Returns the same Intent object, for chaining multiple calls
3503     * into a single statement.
3504     *
3505     * @see #putExtras
3506     * @see #removeExtra
3507     * @see #getParcelableExtra(String)
3508     */
3509    public Intent putExtra(String name, Parcelable value) {
3510        if (mExtras == null) {
3511            mExtras = new Bundle();
3512        }
3513        mExtras.putParcelable(name, value);
3514        return this;
3515    }
3516
3517    /**
3518     * Add extended data to the intent.  The name must include a package
3519     * prefix, for example the app com.android.contacts would use names
3520     * like "com.android.contacts.ShowAll".
3521     *
3522     * @param name The name of the extra data, with package prefix.
3523     * @param value The Parcelable[] data value.
3524     *
3525     * @return Returns the same Intent object, for chaining multiple calls
3526     * into a single statement.
3527     *
3528     * @see #putExtras
3529     * @see #removeExtra
3530     * @see #getParcelableArrayExtra(String)
3531     */
3532    public Intent putExtra(String name, Parcelable[] value) {
3533        if (mExtras == null) {
3534            mExtras = new Bundle();
3535        }
3536        mExtras.putParcelableArray(name, value);
3537        return this;
3538    }
3539
3540    /**
3541     * Add extended data to the intent.  The name must include a package
3542     * prefix, for example the app com.android.contacts would use names
3543     * like "com.android.contacts.ShowAll".
3544     *
3545     * @param name The name of the extra data, with package prefix.
3546     * @param value The ArrayList<Parcelable> data value.
3547     *
3548     * @return Returns the same Intent object, for chaining multiple calls
3549     * into a single statement.
3550     *
3551     * @see #putExtras
3552     * @see #removeExtra
3553     * @see #getParcelableArrayListExtra(String)
3554     */
3555    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
3556        if (mExtras == null) {
3557            mExtras = new Bundle();
3558        }
3559        mExtras.putParcelableArrayList(name, value);
3560        return this;
3561    }
3562
3563    /**
3564     * Add extended data to the intent.  The name must include a package
3565     * prefix, for example the app com.android.contacts would use names
3566     * like "com.android.contacts.ShowAll".
3567     *
3568     * @param name The name of the extra data, with package prefix.
3569     * @param value The ArrayList<Integer> data value.
3570     *
3571     * @return Returns the same Intent object, for chaining multiple calls
3572     * into a single statement.
3573     *
3574     * @see #putExtras
3575     * @see #removeExtra
3576     * @see #getIntegerArrayListExtra(String)
3577     */
3578    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
3579        if (mExtras == null) {
3580            mExtras = new Bundle();
3581        }
3582        mExtras.putIntegerArrayList(name, value);
3583        return this;
3584    }
3585
3586    /**
3587     * Add extended data to the intent.  The name must include a package
3588     * prefix, for example the app com.android.contacts would use names
3589     * like "com.android.contacts.ShowAll".
3590     *
3591     * @param name The name of the extra data, with package prefix.
3592     * @param value The ArrayList<String> data value.
3593     *
3594     * @return Returns the same Intent object, for chaining multiple calls
3595     * into a single statement.
3596     *
3597     * @see #putExtras
3598     * @see #removeExtra
3599     * @see #getStringArrayListExtra(String)
3600     */
3601    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
3602        if (mExtras == null) {
3603            mExtras = new Bundle();
3604        }
3605        mExtras.putStringArrayList(name, value);
3606        return this;
3607    }
3608
3609    /**
3610     * Add extended data to the intent.  The name must include a package
3611     * prefix, for example the app com.android.contacts would use names
3612     * like "com.android.contacts.ShowAll".
3613     *
3614     * @param name The name of the extra data, with package prefix.
3615     * @param value The Serializable data value.
3616     *
3617     * @return Returns the same Intent object, for chaining multiple calls
3618     * into a single statement.
3619     *
3620     * @see #putExtras
3621     * @see #removeExtra
3622     * @see #getSerializableExtra(String)
3623     */
3624    public Intent putExtra(String name, Serializable value) {
3625        if (mExtras == null) {
3626            mExtras = new Bundle();
3627        }
3628        mExtras.putSerializable(name, value);
3629        return this;
3630    }
3631
3632    /**
3633     * Add extended data to the intent.  The name must include a package
3634     * prefix, for example the app com.android.contacts would use names
3635     * like "com.android.contacts.ShowAll".
3636     *
3637     * @param name The name of the extra data, with package prefix.
3638     * @param value The boolean array data value.
3639     *
3640     * @return Returns the same Intent object, for chaining multiple calls
3641     * into a single statement.
3642     *
3643     * @see #putExtras
3644     * @see #removeExtra
3645     * @see #getBooleanArrayExtra(String)
3646     */
3647    public Intent putExtra(String name, boolean[] value) {
3648        if (mExtras == null) {
3649            mExtras = new Bundle();
3650        }
3651        mExtras.putBooleanArray(name, value);
3652        return this;
3653    }
3654
3655    /**
3656     * Add extended data to the intent.  The name must include a package
3657     * prefix, for example the app com.android.contacts would use names
3658     * like "com.android.contacts.ShowAll".
3659     *
3660     * @param name The name of the extra data, with package prefix.
3661     * @param value The byte array data value.
3662     *
3663     * @return Returns the same Intent object, for chaining multiple calls
3664     * into a single statement.
3665     *
3666     * @see #putExtras
3667     * @see #removeExtra
3668     * @see #getByteArrayExtra(String)
3669     */
3670    public Intent putExtra(String name, byte[] value) {
3671        if (mExtras == null) {
3672            mExtras = new Bundle();
3673        }
3674        mExtras.putByteArray(name, value);
3675        return this;
3676    }
3677
3678    /**
3679     * Add extended data to the intent.  The name must include a package
3680     * prefix, for example the app com.android.contacts would use names
3681     * like "com.android.contacts.ShowAll".
3682     *
3683     * @param name The name of the extra data, with package prefix.
3684     * @param value The short array data value.
3685     *
3686     * @return Returns the same Intent object, for chaining multiple calls
3687     * into a single statement.
3688     *
3689     * @see #putExtras
3690     * @see #removeExtra
3691     * @see #getShortArrayExtra(String)
3692     */
3693    public Intent putExtra(String name, short[] value) {
3694        if (mExtras == null) {
3695            mExtras = new Bundle();
3696        }
3697        mExtras.putShortArray(name, value);
3698        return this;
3699    }
3700
3701    /**
3702     * Add extended data to the intent.  The name must include a package
3703     * prefix, for example the app com.android.contacts would use names
3704     * like "com.android.contacts.ShowAll".
3705     *
3706     * @param name The name of the extra data, with package prefix.
3707     * @param value The char array data value.
3708     *
3709     * @return Returns the same Intent object, for chaining multiple calls
3710     * into a single statement.
3711     *
3712     * @see #putExtras
3713     * @see #removeExtra
3714     * @see #getCharArrayExtra(String)
3715     */
3716    public Intent putExtra(String name, char[] value) {
3717        if (mExtras == null) {
3718            mExtras = new Bundle();
3719        }
3720        mExtras.putCharArray(name, value);
3721        return this;
3722    }
3723
3724    /**
3725     * Add extended data to the intent.  The name must include a package
3726     * prefix, for example the app com.android.contacts would use names
3727     * like "com.android.contacts.ShowAll".
3728     *
3729     * @param name The name of the extra data, with package prefix.
3730     * @param value The int array data value.
3731     *
3732     * @return Returns the same Intent object, for chaining multiple calls
3733     * into a single statement.
3734     *
3735     * @see #putExtras
3736     * @see #removeExtra
3737     * @see #getIntArrayExtra(String)
3738     */
3739    public Intent putExtra(String name, int[] value) {
3740        if (mExtras == null) {
3741            mExtras = new Bundle();
3742        }
3743        mExtras.putIntArray(name, value);
3744        return this;
3745    }
3746
3747    /**
3748     * Add extended data to the intent.  The name must include a package
3749     * prefix, for example the app com.android.contacts would use names
3750     * like "com.android.contacts.ShowAll".
3751     *
3752     * @param name The name of the extra data, with package prefix.
3753     * @param value The byte array data value.
3754     *
3755     * @return Returns the same Intent object, for chaining multiple calls
3756     * into a single statement.
3757     *
3758     * @see #putExtras
3759     * @see #removeExtra
3760     * @see #getLongArrayExtra(String)
3761     */
3762    public Intent putExtra(String name, long[] value) {
3763        if (mExtras == null) {
3764            mExtras = new Bundle();
3765        }
3766        mExtras.putLongArray(name, value);
3767        return this;
3768    }
3769
3770    /**
3771     * Add extended data to the intent.  The name must include a package
3772     * prefix, for example the app com.android.contacts would use names
3773     * like "com.android.contacts.ShowAll".
3774     *
3775     * @param name The name of the extra data, with package prefix.
3776     * @param value The float array data value.
3777     *
3778     * @return Returns the same Intent object, for chaining multiple calls
3779     * into a single statement.
3780     *
3781     * @see #putExtras
3782     * @see #removeExtra
3783     * @see #getFloatArrayExtra(String)
3784     */
3785    public Intent putExtra(String name, float[] value) {
3786        if (mExtras == null) {
3787            mExtras = new Bundle();
3788        }
3789        mExtras.putFloatArray(name, value);
3790        return this;
3791    }
3792
3793    /**
3794     * Add extended data to the intent.  The name must include a package
3795     * prefix, for example the app com.android.contacts would use names
3796     * like "com.android.contacts.ShowAll".
3797     *
3798     * @param name The name of the extra data, with package prefix.
3799     * @param value The double array data value.
3800     *
3801     * @return Returns the same Intent object, for chaining multiple calls
3802     * into a single statement.
3803     *
3804     * @see #putExtras
3805     * @see #removeExtra
3806     * @see #getDoubleArrayExtra(String)
3807     */
3808    public Intent putExtra(String name, double[] value) {
3809        if (mExtras == null) {
3810            mExtras = new Bundle();
3811        }
3812        mExtras.putDoubleArray(name, value);
3813        return this;
3814    }
3815
3816    /**
3817     * Add extended data to the intent.  The name must include a package
3818     * prefix, for example the app com.android.contacts would use names
3819     * like "com.android.contacts.ShowAll".
3820     *
3821     * @param name The name of the extra data, with package prefix.
3822     * @param value The String array data value.
3823     *
3824     * @return Returns the same Intent object, for chaining multiple calls
3825     * into a single statement.
3826     *
3827     * @see #putExtras
3828     * @see #removeExtra
3829     * @see #getStringArrayExtra(String)
3830     */
3831    public Intent putExtra(String name, String[] value) {
3832        if (mExtras == null) {
3833            mExtras = new Bundle();
3834        }
3835        mExtras.putStringArray(name, value);
3836        return this;
3837    }
3838
3839    /**
3840     * Add extended data to the intent.  The name must include a package
3841     * prefix, for example the app com.android.contacts would use names
3842     * like "com.android.contacts.ShowAll".
3843     *
3844     * @param name The name of the extra data, with package prefix.
3845     * @param value The Bundle data value.
3846     *
3847     * @return Returns the same Intent object, for chaining multiple calls
3848     * into a single statement.
3849     *
3850     * @see #putExtras
3851     * @see #removeExtra
3852     * @see #getBundleExtra(String)
3853     */
3854    public Intent putExtra(String name, Bundle value) {
3855        if (mExtras == null) {
3856            mExtras = new Bundle();
3857        }
3858        mExtras.putBundle(name, value);
3859        return this;
3860    }
3861
3862    /**
3863     * Add extended data to the intent.  The name must include a package
3864     * prefix, for example the app com.android.contacts would use names
3865     * like "com.android.contacts.ShowAll".
3866     *
3867     * @param name The name of the extra data, with package prefix.
3868     * @param value The IBinder data value.
3869     *
3870     * @return Returns the same Intent object, for chaining multiple calls
3871     * into a single statement.
3872     *
3873     * @see #putExtras
3874     * @see #removeExtra
3875     * @see #getIBinderExtra(String)
3876     *
3877     * @deprecated
3878     * @hide
3879     */
3880    @Deprecated
3881    public Intent putExtra(String name, IBinder value) {
3882        if (mExtras == null) {
3883            mExtras = new Bundle();
3884        }
3885        mExtras.putIBinder(name, value);
3886        return this;
3887    }
3888
3889    /**
3890     * Copy all extras in 'src' in to this intent.
3891     *
3892     * @param src Contains the extras to copy.
3893     *
3894     * @see #putExtra
3895     */
3896    public Intent putExtras(Intent src) {
3897        if (src.mExtras != null) {
3898            if (mExtras == null) {
3899                mExtras = new Bundle(src.mExtras);
3900            } else {
3901                mExtras.putAll(src.mExtras);
3902            }
3903        }
3904        return this;
3905    }
3906
3907    /**
3908     * Add a set of extended data to the intent.  The keys must include a package
3909     * prefix, for example the app com.android.contacts would use names
3910     * like "com.android.contacts.ShowAll".
3911     *
3912     * @param extras The Bundle of extras to add to this intent.
3913     *
3914     * @see #putExtra
3915     * @see #removeExtra
3916     */
3917    public Intent putExtras(Bundle extras) {
3918        if (mExtras == null) {
3919            mExtras = new Bundle();
3920        }
3921        mExtras.putAll(extras);
3922        return this;
3923    }
3924
3925    /**
3926     * Completely replace the extras in the Intent with the extras in the
3927     * given Intent.
3928     *
3929     * @param src The exact extras contained in this Intent are copied
3930     * into the target intent, replacing any that were previously there.
3931     */
3932    public Intent replaceExtras(Intent src) {
3933        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
3934        return this;
3935    }
3936
3937    /**
3938     * Completely replace the extras in the Intent with the given Bundle of
3939     * extras.
3940     *
3941     * @param extras The new set of extras in the Intent, or null to erase
3942     * all extras.
3943     */
3944    public Intent replaceExtras(Bundle extras) {
3945        mExtras = extras != null ? new Bundle(extras) : null;
3946        return this;
3947    }
3948
3949    /**
3950     * Remove extended data from the intent.
3951     *
3952     * @see #putExtra
3953     */
3954    public void removeExtra(String name) {
3955        if (mExtras != null) {
3956            mExtras.remove(name);
3957            if (mExtras.size() == 0) {
3958                mExtras = null;
3959            }
3960        }
3961    }
3962
3963    /**
3964     * Set special flags controlling how this intent is handled.  Most values
3965     * here depend on the type of component being executed by the Intent,
3966     * specifically the FLAG_ACTIVITY_* flags are all for use with
3967     * {@link Context#startActivity Context.startActivity()} and the
3968     * FLAG_RECEIVER_* flags are all for use with
3969     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
3970     *
3971     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
3972     * Activities and Tasks</a> documentation for important information on how some of these options impact
3973     * the behavior of your application.
3974     *
3975     * @param flags The desired flags.
3976     *
3977     * @return Returns the same Intent object, for chaining multiple calls
3978     * into a single statement.
3979     *
3980     * @see #getFlags
3981     * @see #addFlags
3982     *
3983     * @see #FLAG_GRANT_READ_URI_PERMISSION
3984     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
3985     * @see #FLAG_DEBUG_LOG_RESOLUTION
3986     * @see #FLAG_FROM_BACKGROUND
3987     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
3988     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
3989     * @see #FLAG_ACTIVITY_CLEAR_TOP
3990     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
3991     * @see #FLAG_ACTIVITY_FORWARD_RESULT
3992     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
3993     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
3994     * @see #FLAG_ACTIVITY_NEW_TASK
3995     * @see #FLAG_ACTIVITY_NO_HISTORY
3996     * @see #FLAG_ACTIVITY_NO_USER_ACTION
3997     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
3998     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
3999     * @see #FLAG_ACTIVITY_SINGLE_TOP
4000     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4001     */
4002    public Intent setFlags(int flags) {
4003        mFlags = flags;
4004        return this;
4005    }
4006
4007    /**
4008     * Add additional flags to the intent (or with existing flags
4009     * value).
4010     *
4011     * @param flags The new flags to set.
4012     *
4013     * @return Returns the same Intent object, for chaining multiple calls
4014     * into a single statement.
4015     *
4016     * @see #setFlags
4017     */
4018    public Intent addFlags(int flags) {
4019        mFlags |= flags;
4020        return this;
4021    }
4022
4023    /**
4024     * (Usually optional) Explicitly set the component to handle the intent.
4025     * If left with the default value of null, the system will determine the
4026     * appropriate class to use based on the other fields (action, data,
4027     * type, categories) in the Intent.  If this class is defined, the
4028     * specified class will always be used regardless of the other fields.  You
4029     * should only set this value when you know you absolutely want a specific
4030     * class to be used; otherwise it is better to let the system find the
4031     * appropriate class so that you will respect the installed applications
4032     * and user preferences.
4033     *
4034     * @param component The name of the application component to handle the
4035     * intent, or null to let the system find one for you.
4036     *
4037     * @return Returns the same Intent object, for chaining multiple calls
4038     * into a single statement.
4039     *
4040     * @see #setClass
4041     * @see #setClassName(Context, String)
4042     * @see #setClassName(String, String)
4043     * @see #getComponent
4044     * @see #resolveActivity
4045     */
4046    public Intent setComponent(ComponentName component) {
4047        mComponent = component;
4048        return this;
4049    }
4050
4051    /**
4052     * Convenience for calling {@link #setComponent} with an
4053     * explicit class name.
4054     *
4055     * @param packageContext A Context of the application package implementing
4056     * this class.
4057     * @param className The name of a class inside of the application package
4058     * that will be used as the component for this Intent.
4059     *
4060     * @return Returns the same Intent object, for chaining multiple calls
4061     * into a single statement.
4062     *
4063     * @see #setComponent
4064     * @see #setClass
4065     */
4066    public Intent setClassName(Context packageContext, String className) {
4067        mComponent = new ComponentName(packageContext, className);
4068        return this;
4069    }
4070
4071    /**
4072     * Convenience for calling {@link #setComponent} with an
4073     * explicit application package name and class name.
4074     *
4075     * @param packageName The name of the package implementing the desired
4076     * component.
4077     * @param className The name of a class inside of the application package
4078     * that will be used as the component for this Intent.
4079     *
4080     * @return Returns the same Intent object, for chaining multiple calls
4081     * into a single statement.
4082     *
4083     * @see #setComponent
4084     * @see #setClass
4085     */
4086    public Intent setClassName(String packageName, String className) {
4087        mComponent = new ComponentName(packageName, className);
4088        return this;
4089    }
4090
4091    /**
4092     * Convenience for calling {@link #setComponent(ComponentName)} with the
4093     * name returned by a {@link Class} object.
4094     *
4095     * @param packageContext A Context of the application package implementing
4096     * this class.
4097     * @param cls The class name to set, equivalent to
4098     *            <code>setClassName(context, cls.getName())</code>.
4099     *
4100     * @return Returns the same Intent object, for chaining multiple calls
4101     * into a single statement.
4102     *
4103     * @see #setComponent
4104     */
4105    public Intent setClass(Context packageContext, Class<?> cls) {
4106        mComponent = new ComponentName(packageContext, cls);
4107        return this;
4108    }
4109
4110    /**
4111     * Use with {@link #fillIn} to allow the current action value to be
4112     * overwritten, even if it is already set.
4113     */
4114    public static final int FILL_IN_ACTION = 1<<0;
4115
4116    /**
4117     * Use with {@link #fillIn} to allow the current data or type value
4118     * overwritten, even if it is already set.
4119     */
4120    public static final int FILL_IN_DATA = 1<<1;
4121
4122    /**
4123     * Use with {@link #fillIn} to allow the current categories to be
4124     * overwritten, even if they are already set.
4125     */
4126    public static final int FILL_IN_CATEGORIES = 1<<2;
4127
4128    /**
4129     * Use with {@link #fillIn} to allow the current component value to be
4130     * overwritten, even if it is already set.
4131     */
4132    public static final int FILL_IN_COMPONENT = 1<<3;
4133
4134    /**
4135     * Copy the contents of <var>other</var> in to this object, but only
4136     * where fields are not defined by this object.  For purposes of a field
4137     * being defined, the following pieces of data in the Intent are
4138     * considered to be separate fields:
4139     *
4140     * <ul>
4141     * <li> action, as set by {@link #setAction}.
4142     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4143     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4144     * <li> categories, as set by {@link #addCategory}.
4145     * <li> component, as set by {@link #setComponent(ComponentName)} or
4146     * related methods.
4147     * <li> each top-level name in the associated extras.
4148     * </ul>
4149     *
4150     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4151     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, and
4152     * {@link #FILL_IN_COMPONENT} to override the restriction where the
4153     * corresponding field will not be replaced if it is already set.
4154     *
4155     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4156     * and Intent B with {action="gotit", data-type="some/thing",
4157     * categories="one","two"}.
4158     *
4159     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4160     * containing: {action="gotit", data-type="some/thing",
4161     * categories="bar"}.
4162     *
4163     * @param other Another Intent whose values are to be used to fill in
4164     * the current one.
4165     * @param flags Options to control which fields can be filled in.
4166     *
4167     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4168     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, and
4169     * {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4170     */
4171    public int fillIn(Intent other, int flags) {
4172        int changes = 0;
4173        if ((mAction == null && other.mAction == null)
4174                || (flags&FILL_IN_ACTION) != 0) {
4175            mAction = other.mAction;
4176            changes |= FILL_IN_ACTION;
4177        }
4178        if ((mData == null && mType == null &&
4179                (other.mData != null || other.mType != null))
4180                || (flags&FILL_IN_DATA) != 0) {
4181            mData = other.mData;
4182            mType = other.mType;
4183            changes |= FILL_IN_DATA;
4184        }
4185        if ((mCategories == null && other.mCategories == null)
4186                || (flags&FILL_IN_CATEGORIES) != 0) {
4187            if (other.mCategories != null) {
4188                mCategories = new HashSet<String>(other.mCategories);
4189            }
4190            changes |= FILL_IN_CATEGORIES;
4191        }
4192        if ((mComponent == null && other.mComponent == null)
4193                || (flags&FILL_IN_COMPONENT) != 0) {
4194            mComponent = other.mComponent;
4195            changes |= FILL_IN_COMPONENT;
4196        }
4197        mFlags |= other.mFlags;
4198        if (mExtras == null) {
4199            if (other.mExtras != null) {
4200                mExtras = new Bundle(other.mExtras);
4201            }
4202        } else if (other.mExtras != null) {
4203            try {
4204                Bundle newb = new Bundle(other.mExtras);
4205                newb.putAll(mExtras);
4206                mExtras = newb;
4207            } catch (RuntimeException e) {
4208                // Modifying the extras can cause us to unparcel the contents
4209                // of the bundle, and if we do this in the system process that
4210                // may fail.  We really should handle this (i.e., the Bundle
4211                // impl shouldn't be on top of a plain map), but for now just
4212                // ignore it and keep the original contents. :(
4213                Log.w("Intent", "Failure filling in extras", e);
4214            }
4215        }
4216        return changes;
4217    }
4218
4219    /**
4220     * Wrapper class holding an Intent and implementing comparisons on it for
4221     * the purpose of filtering.  The class implements its
4222     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4223     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4224     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4225     * on the wrapped Intent.
4226     */
4227    public static final class FilterComparison {
4228        private final Intent mIntent;
4229        private final int mHashCode;
4230
4231        public FilterComparison(Intent intent) {
4232            mIntent = intent;
4233            mHashCode = intent.filterHashCode();
4234        }
4235
4236        /**
4237         * Return the Intent that this FilterComparison represents.
4238         * @return Returns the Intent held by the FilterComparison.  Do
4239         * not modify!
4240         */
4241        public Intent getIntent() {
4242            return mIntent;
4243        }
4244
4245        @Override
4246        public boolean equals(Object obj) {
4247            if (obj instanceof FilterComparison) {
4248                Intent other = ((FilterComparison)obj).mIntent;
4249                return mIntent.filterEquals(other);
4250            }
4251            return false;
4252        }
4253
4254        @Override
4255        public int hashCode() {
4256            return mHashCode;
4257        }
4258    }
4259
4260    /**
4261     * Determine if two intents are the same for the purposes of intent
4262     * resolution (filtering). That is, if their action, data, type,
4263     * class, and categories are the same.  This does <em>not</em> compare
4264     * any extra data included in the intents.
4265     *
4266     * @param other The other Intent to compare against.
4267     *
4268     * @return Returns true if action, data, type, class, and categories
4269     *         are the same.
4270     */
4271    public boolean filterEquals(Intent other) {
4272        if (other == null) {
4273            return false;
4274        }
4275        if (mAction != other.mAction) {
4276            if (mAction != null) {
4277                if (!mAction.equals(other.mAction)) {
4278                    return false;
4279                }
4280            } else {
4281                if (!other.mAction.equals(mAction)) {
4282                    return false;
4283                }
4284            }
4285        }
4286        if (mData != other.mData) {
4287            if (mData != null) {
4288                if (!mData.equals(other.mData)) {
4289                    return false;
4290                }
4291            } else {
4292                if (!other.mData.equals(mData)) {
4293                    return false;
4294                }
4295            }
4296        }
4297        if (mType != other.mType) {
4298            if (mType != null) {
4299                if (!mType.equals(other.mType)) {
4300                    return false;
4301                }
4302            } else {
4303                if (!other.mType.equals(mType)) {
4304                    return false;
4305                }
4306            }
4307        }
4308        if (mComponent != other.mComponent) {
4309            if (mComponent != null) {
4310                if (!mComponent.equals(other.mComponent)) {
4311                    return false;
4312                }
4313            } else {
4314                if (!other.mComponent.equals(mComponent)) {
4315                    return false;
4316                }
4317            }
4318        }
4319        if (mCategories != other.mCategories) {
4320            if (mCategories != null) {
4321                if (!mCategories.equals(other.mCategories)) {
4322                    return false;
4323                }
4324            } else {
4325                if (!other.mCategories.equals(mCategories)) {
4326                    return false;
4327                }
4328            }
4329        }
4330
4331        return true;
4332    }
4333
4334    /**
4335     * Generate hash code that matches semantics of filterEquals().
4336     *
4337     * @return Returns the hash value of the action, data, type, class, and
4338     *         categories.
4339     *
4340     * @see #filterEquals
4341     */
4342    public int filterHashCode() {
4343        int code = 0;
4344        if (mAction != null) {
4345            code += mAction.hashCode();
4346        }
4347        if (mData != null) {
4348            code += mData.hashCode();
4349        }
4350        if (mType != null) {
4351            code += mType.hashCode();
4352        }
4353        if (mComponent != null) {
4354            code += mComponent.hashCode();
4355        }
4356        if (mCategories != null) {
4357            code += mCategories.hashCode();
4358        }
4359        return code;
4360    }
4361
4362    @Override
4363    public String toString() {
4364        StringBuilder   b = new StringBuilder();
4365
4366        b.append("Intent {");
4367        if (mAction != null) b.append(" action=").append(mAction);
4368        if (mCategories != null) {
4369            b.append(" categories={");
4370            Iterator<String> i = mCategories.iterator();
4371            boolean didone = false;
4372            while (i.hasNext()) {
4373                if (didone) b.append(",");
4374                didone = true;
4375                b.append(i.next());
4376            }
4377            b.append("}");
4378        }
4379        if (mData != null) b.append(" data=").append(mData);
4380        if (mType != null) b.append(" type=").append(mType);
4381        if (mFlags != 0) b.append(" flags=0x").append(Integer.toHexString(mFlags));
4382        if (mComponent != null) b.append(" comp=").append(mComponent.toShortString());
4383        if (mExtras != null) b.append(" (has extras)");
4384        b.append(" }");
4385
4386        return b.toString();
4387    }
4388
4389    public String toURI() {
4390        StringBuilder uri = new StringBuilder(mData != null ? mData.toString() : "");
4391
4392        uri.append("#Intent;");
4393
4394        if (mAction != null) {
4395            uri.append("action=").append(mAction).append(';');
4396        }
4397        if (mCategories != null) {
4398            for (String category : mCategories) {
4399                uri.append("category=").append(category).append(';');
4400            }
4401        }
4402        if (mType != null) {
4403            uri.append("type=").append(mType).append(';');
4404        }
4405        if (mFlags != 0) {
4406            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
4407        }
4408        if (mComponent != null) {
4409            uri.append("component=").append(mComponent.flattenToShortString()).append(';');
4410        }
4411        if (mExtras != null) {
4412            for (String key : mExtras.keySet()) {
4413                final Object value = mExtras.get(key);
4414                char entryType =
4415                        value instanceof String    ? 'S' :
4416                        value instanceof Boolean   ? 'B' :
4417                        value instanceof Byte      ? 'b' :
4418                        value instanceof Character ? 'c' :
4419                        value instanceof Double    ? 'd' :
4420                        value instanceof Float     ? 'f' :
4421                        value instanceof Integer   ? 'i' :
4422                        value instanceof Long      ? 'l' :
4423                        value instanceof Short     ? 's' :
4424                        '\0';
4425
4426                if (entryType != '\0') {
4427                    uri.append(entryType);
4428                    uri.append('.');
4429                    uri.append(Uri.encode(key));
4430                    uri.append('=');
4431                    uri.append(Uri.encode(value.toString()));
4432                    uri.append(';');
4433                }
4434            }
4435        }
4436
4437        uri.append("end");
4438
4439        return uri.toString();
4440    }
4441
4442    public int describeContents() {
4443        return (mExtras != null) ? mExtras.describeContents() : 0;
4444    }
4445
4446    public void writeToParcel(Parcel out, int flags) {
4447        out.writeString(mAction);
4448        Uri.writeToParcel(out, mData);
4449        out.writeString(mType);
4450        out.writeInt(mFlags);
4451        ComponentName.writeToParcel(mComponent, out);
4452
4453        if (mCategories != null) {
4454            out.writeInt(mCategories.size());
4455            for (String category : mCategories) {
4456                out.writeString(category);
4457            }
4458        } else {
4459            out.writeInt(0);
4460        }
4461
4462        out.writeBundle(mExtras);
4463    }
4464
4465    public static final Parcelable.Creator<Intent> CREATOR
4466            = new Parcelable.Creator<Intent>() {
4467        public Intent createFromParcel(Parcel in) {
4468            return new Intent(in);
4469        }
4470        public Intent[] newArray(int size) {
4471            return new Intent[size];
4472        }
4473    };
4474
4475    private Intent(Parcel in) {
4476        readFromParcel(in);
4477    }
4478
4479    public void readFromParcel(Parcel in) {
4480        mAction = in.readString();
4481        mData = Uri.CREATOR.createFromParcel(in);
4482        mType = in.readString();
4483        mFlags = in.readInt();
4484        mComponent = ComponentName.readFromParcel(in);
4485
4486        int N = in.readInt();
4487        if (N > 0) {
4488            mCategories = new HashSet<String>();
4489            int i;
4490            for (i=0; i<N; i++) {
4491                mCategories.add(in.readString());
4492            }
4493        } else {
4494            mCategories = null;
4495        }
4496
4497        mExtras = in.readBundle();
4498    }
4499
4500    /**
4501     * Parses the "intent" element (and its children) from XML and instantiates
4502     * an Intent object.  The given XML parser should be located at the tag
4503     * where parsing should start (often named "intent"), from which the
4504     * basic action, data, type, and package and class name will be
4505     * retrieved.  The function will then parse in to any child elements,
4506     * looking for <category android:name="xxx"> tags to add categories and
4507     * <extra android:name="xxx" android:value="yyy"> to attach extra data
4508     * to the intent.
4509     *
4510     * @param resources The Resources to use when inflating resources.
4511     * @param parser The XML parser pointing at an "intent" tag.
4512     * @param attrs The AttributeSet interface for retrieving extended
4513     * attribute data at the current <var>parser</var> location.
4514     * @return An Intent object matching the XML data.
4515     * @throws XmlPullParserException If there was an XML parsing error.
4516     * @throws IOException If there was an I/O error.
4517     */
4518    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
4519            throws XmlPullParserException, IOException {
4520        Intent intent = new Intent();
4521
4522        TypedArray sa = resources.obtainAttributes(attrs,
4523                com.android.internal.R.styleable.Intent);
4524
4525        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
4526
4527        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
4528        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
4529        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
4530
4531        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
4532        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
4533        if (packageName != null && className != null) {
4534            intent.setComponent(new ComponentName(packageName, className));
4535        }
4536
4537        sa.recycle();
4538
4539        int outerDepth = parser.getDepth();
4540        int type;
4541        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
4542               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
4543            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
4544                continue;
4545            }
4546
4547            String nodeName = parser.getName();
4548            if (nodeName.equals("category")) {
4549                sa = resources.obtainAttributes(attrs,
4550                        com.android.internal.R.styleable.IntentCategory);
4551                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
4552                sa.recycle();
4553
4554                if (cat != null) {
4555                    intent.addCategory(cat);
4556                }
4557                XmlUtils.skipCurrentTag(parser);
4558
4559            } else if (nodeName.equals("extra")) {
4560                if (intent.mExtras == null) {
4561                    intent.mExtras = new Bundle();
4562                }
4563                resources.parseBundleExtra("extra", attrs, intent.mExtras);
4564                XmlUtils.skipCurrentTag(parser);
4565
4566            } else {
4567                XmlUtils.skipCurrentTag(parser);
4568            }
4569        }
4570
4571        return intent;
4572    }
4573}
4574