Intent.java revision 75534fbe246e5562779500bc7cf7f0ddfe9b8330
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     */
1432    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1433    public static final String ACTION_INPUT_METHOD_CHANGED =
1434            "android.intent.action.INPUT_METHOD_CHANGED";
1435
1436    /**
1437     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1438     * more radios have been turned off or on. The intent will have the following extra value:</p>
1439     * <ul>
1440     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1441     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1442     *   turned off</li>
1443     * </ul>
1444     */
1445    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1446    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1447
1448    /**
1449     * Broadcast Action: Some content providers have parts of their namespace
1450     * where they publish new events or items that the user may be especially
1451     * interested in. For these things, they may broadcast this action when the
1452     * set of interesting items change.
1453     *
1454     * For example, GmailProvider sends this notification when the set of unread
1455     * mail in the inbox changes.
1456     *
1457     * <p>The data of the intent identifies which part of which provider
1458     * changed. When queried through the content resolver, the data URI will
1459     * return the data set in question.
1460     *
1461     * <p>The intent will have the following extra values:
1462     * <ul>
1463     *   <li><em>count</em> - The number of items in the data set. This is the
1464     *       same as the number of items in the cursor returned by querying the
1465     *       data URI. </li>
1466     * </ul>
1467     *
1468     * This intent will be sent at boot (if the count is non-zero) and when the
1469     * data set changes. It is possible for the data set to change without the
1470     * count changing (for example, if a new unread message arrives in the same
1471     * sync operation in which a message is archived). The phone should still
1472     * ring/vibrate/etc as normal in this case.
1473     */
1474    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1475    public static final String ACTION_PROVIDER_CHANGED =
1476            "android.intent.action.PROVIDER_CHANGED";
1477
1478    /**
1479     * Broadcast Action: Wired Headset plugged in or unplugged.
1480     *
1481     * <p>The intent will have the following extra values:
1482     * <ul>
1483     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1484     *   <li><em>name</em> - Headset type, human readable string </li>
1485     * </ul>
1486     * </ul>
1487     */
1488    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1489    public static final String ACTION_HEADSET_PLUG =
1490            "android.intent.action.HEADSET_PLUG";
1491
1492    /**
1493     * Broadcast Action: An outgoing call is about to be placed.
1494     *
1495     * <p>The Intent will have the following extra value:
1496     * <ul>
1497     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1498     *       the phone number originally intended to be dialed.</li>
1499     * </ul>
1500     * <p>Once the broadcast is finished, the resultData is used as the actual
1501     * number to call.  If  <code>null</code>, no call will be placed.</p>
1502     * <p>It is perfectly acceptable for multiple receivers to process the
1503     * outgoing call in turn: for example, a parental control application
1504     * might verify that the user is authorized to place the call at that
1505     * time, then a number-rewriting application might add an area code if
1506     * one was not specified.</p>
1507     * <p>For consistency, any receiver whose purpose is to prohibit phone
1508     * calls should have a priority of 0, to ensure it will see the final
1509     * phone number to be dialed.
1510     * Any receiver whose purpose is to rewrite phone numbers to be called
1511     * should have a positive priority.
1512     * Negative priorities are reserved for the system for this broadcast;
1513     * using them may cause problems.</p>
1514     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1515     * abort the broadcast.</p>
1516     * <p>Emergency calls cannot be intercepted using this mechanism, and
1517     * other calls cannot be modified to call emergency numbers using this
1518     * mechanism.
1519     * <p>You must hold the
1520     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1521     * permission to receive this Intent.</p>
1522     */
1523    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1524    public static final String ACTION_NEW_OUTGOING_CALL =
1525            "android.intent.action.NEW_OUTGOING_CALL";
1526
1527    /**
1528     * Broadcast Action: Have the device reboot.  This is only for use by
1529     * system code.
1530     */
1531    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1532    public static final String ACTION_REBOOT =
1533            "android.intent.action.REBOOT";
1534
1535    // ---------------------------------------------------------------------
1536    // ---------------------------------------------------------------------
1537    // Standard intent categories (see addCategory()).
1538
1539    /**
1540     * Set if the activity should be an option for the default action
1541     * (center press) to perform on a piece of data.  Setting this will
1542     * hide from the user any activities without it set when performing an
1543     * action on some data.  Note that this is normal -not- set in the
1544     * Intent when initiating an action -- it is for use in intent filters
1545     * specified in packages.
1546     */
1547    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1548    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1549    /**
1550     * Activities that can be safely invoked from a browser must support this
1551     * category.  For example, if the user is viewing a web page or an e-mail
1552     * and clicks on a link in the text, the Intent generated execute that
1553     * link will require the BROWSABLE category, so that only activities
1554     * supporting this category will be considered as possible actions.  By
1555     * supporting this category, you are promising that there is nothing
1556     * damaging (without user intervention) that can happen by invoking any
1557     * matching Intent.
1558     */
1559    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1560    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1561    /**
1562     * Set if the activity should be considered as an alternative action to
1563     * the data the user is currently viewing.  See also
1564     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1565     * applies to the selection in a list of items.
1566     *
1567     * <p>Supporting this category means that you would like your activity to be
1568     * displayed in the set of alternative things the user can do, usually as
1569     * part of the current activity's options menu.  You will usually want to
1570     * include a specific label in the &lt;intent-filter&gt; of this action
1571     * describing to the user what it does.
1572     *
1573     * <p>The action of IntentFilter with this category is important in that it
1574     * describes the specific action the target will perform.  This generally
1575     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1576     * a specific name such as "com.android.camera.action.CROP.  Only one
1577     * alternative of any particular action will be shown to the user, so using
1578     * a specific action like this makes sure that your alternative will be
1579     * displayed while also allowing other applications to provide their own
1580     * overrides of that particular action.
1581     */
1582    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1583    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1584    /**
1585     * Set if the activity should be considered as an alternative selection
1586     * action to the data the user has currently selected.  This is like
1587     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1588     * of items from which the user can select, giving them alternatives to the
1589     * default action that will be performed on it.
1590     */
1591    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1592    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1593    /**
1594     * Intended to be used as a tab inside of an containing TabActivity.
1595     */
1596    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1597    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1598    /**
1599     * Should be displayed in the top-level launcher.
1600     */
1601    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1602    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1603    /**
1604     * Provides information about the package it is in; typically used if
1605     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1606     * a front-door to the user without having to be shown in the all apps list.
1607     */
1608    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1609    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1610    /**
1611     * This is the home activity, that is the first activity that is displayed
1612     * when the device boots.
1613     */
1614    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1615    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1616    /**
1617     * This activity is a preference panel.
1618     */
1619    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1620    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1621    /**
1622     * This activity is a development preference panel.
1623     */
1624    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1625    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1626    /**
1627     * Capable of running inside a parent activity container.
1628     */
1629    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1630    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1631    /**
1632     * This activity may be exercised by the monkey or other automated test tools.
1633     */
1634    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1635    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1636    /**
1637     * To be used as a test (not part of the normal user experience).
1638     */
1639    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1640    /**
1641     * To be used as a unit test (run through the Test Harness).
1642     */
1643    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1644    /**
1645     * To be used as an sample code example (not part of the normal user
1646     * experience).
1647     */
1648    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1649    /**
1650     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1651     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1652     * when queried, though it is allowable for those columns to be blank.
1653     */
1654    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1655    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1656
1657    /**
1658     * To be used as code under test for framework instrumentation tests.
1659     */
1660    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1661            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1662    // ---------------------------------------------------------------------
1663    // ---------------------------------------------------------------------
1664    // Standard extra data keys.
1665
1666    /**
1667     * The initial data to place in a newly created record.  Use with
1668     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1669     * fields as would be given to the underlying ContentProvider.insert()
1670     * call.
1671     */
1672    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1673
1674    /**
1675     * A constant CharSequence that is associated with the Intent, used with
1676     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1677     * this may be a styled CharSequence, so you must use
1678     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1679     * retrieve it.
1680     */
1681    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1682
1683    /**
1684     * A content: URI holding a stream of data associated with the Intent,
1685     * used with {@link #ACTION_SEND} to supply the data being sent.
1686     */
1687    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1688
1689    /**
1690     * A String[] holding e-mail addresses that should be delivered to.
1691     */
1692    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1693
1694    /**
1695     * A String[] holding e-mail addresses that should be carbon copied.
1696     */
1697    public static final String EXTRA_CC       = "android.intent.extra.CC";
1698
1699    /**
1700     * A String[] holding e-mail addresses that should be blind carbon copied.
1701     */
1702    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1703
1704    /**
1705     * A constant string holding the desired subject line of a message.
1706     */
1707    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1708
1709    /**
1710     * An Intent describing the choices you would like shown with
1711     * {@link #ACTION_PICK_ACTIVITY}.
1712     */
1713    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1714
1715    /**
1716     * A CharSequence dialog title to provide to the user when used with a
1717     * {@link #ACTION_CHOOSER}.
1718     */
1719    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1720
1721    /**
1722     * A {@link android.view.KeyEvent} object containing the event that
1723     * triggered the creation of the Intent it is in.
1724     */
1725    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1726
1727    /**
1728     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1729     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
1730     * of restarting the application.
1731     */
1732    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
1733
1734    /**
1735     * A String holding the phone number originally entered in
1736     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
1737     * number to call in a {@link android.content.Intent#ACTION_CALL}.
1738     */
1739    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
1740    /**
1741     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
1742     * intents to supply the uid the package had been assigned.  Also an optional
1743     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1744     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
1745     * purpose.
1746     */
1747    public static final String EXTRA_UID = "android.intent.extra.UID";
1748
1749    /**
1750     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1751     * intents to indicate whether this represents a full uninstall (removing
1752     * both the code and its data) or a partial uninstall (leaving its data,
1753     * implying that this is an update).
1754     */
1755    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
1756
1757    /**
1758     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1759     * intents to indicate that this is a replacement of the package, so this
1760     * broadcast will immediately be followed by an add broadcast for a
1761     * different version of the same package.
1762     */
1763    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
1764
1765    /**
1766     * Used as an int extra field in {@link android.app.AlarmManager} intents
1767     * to tell the application being invoked how many pending alarms are being
1768     * delievered with the intent.  For one-shot alarms this will always be 1.
1769     * For recurring alarms, this might be greater than 1 if the device was
1770     * asleep or powered off at the time an earlier alarm would have been
1771     * delivered.
1772     */
1773    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
1774
1775    // ---------------------------------------------------------------------
1776    // ---------------------------------------------------------------------
1777    // Intent flags (see mFlags variable).
1778
1779    /**
1780     * If set, the recipient of this Intent will be granted permission to
1781     * perform read operations on the Uri in the Intent's data.
1782     */
1783    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
1784    /**
1785     * If set, the recipient of this Intent will be granted permission to
1786     * perform write operations on the Uri in the Intent's data.
1787     */
1788    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
1789    /**
1790     * Can be set by the caller to indicate that this Intent is coming from
1791     * a background operation, not from direct user interaction.
1792     */
1793    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
1794    /**
1795     * A flag you can enable for debugging: when set, log messages will be
1796     * printed during the resolution of this intent to show you what has
1797     * been found to create the final resolved list.
1798     */
1799    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
1800
1801    /**
1802     * If set, the new activity is not kept in the history stack.  As soon as
1803     * the user navigates away from it, the activity is finished.  This may also
1804     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
1805     * noHistory} attribute.
1806     */
1807    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
1808    /**
1809     * If set, the activity will not be launched if it is already running
1810     * at the top of the history stack.
1811     */
1812    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
1813    /**
1814     * If set, this activity will become the start of a new task on this
1815     * history stack.  A task (from the activity that started it to the
1816     * next task activity) defines an atomic group of activities that the
1817     * user can move to.  Tasks can be moved to the foreground and background;
1818     * all of the activities inside of a particular task always remain in
1819     * the same order.  See
1820     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
1821     * Activities and Tasks</a> for more details on tasks.
1822     *
1823     * <p>This flag is generally used by activities that want
1824     * to present a "launcher" style behavior: they give the user a list of
1825     * separate things that can be done, which otherwise run completely
1826     * independently of the activity launching them.
1827     *
1828     * <p>When using this flag, if a task is already running for the activity
1829     * you are now starting, then a new activity will not be started; instead,
1830     * the current task will simply be brought to the front of the screen with
1831     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
1832     * to disable this behavior.
1833     *
1834     * <p>This flag can not be used when the caller is requesting a result from
1835     * the activity being launched.
1836     */
1837    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
1838    /**
1839     * <strong>Do not use this flag unless you are implementing your own
1840     * top-level application launcher.</strong>  Used in conjunction with
1841     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
1842     * behavior of bringing an existing task to the foreground.  When set,
1843     * a new task is <em>always</em> started to host the Activity for the
1844     * Intent, regardless of whether there is already an existing task running
1845     * the same thing.
1846     *
1847     * <p><strong>Because the default system does not include graphical task management,
1848     * you should not use this flag unless you provide some way for a user to
1849     * return back to the tasks you have launched.</strong>
1850     *
1851     * <p>This flag is ignored if
1852     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
1853     *
1854     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
1855     * Activities and Tasks</a> for more details on tasks.
1856     */
1857    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
1858    /**
1859     * If set, and the activity being launched is already running in the
1860     * current task, then instead of launching a new instance of that activity,
1861     * all of the other activities on top of it will be closed and this Intent
1862     * will be delivered to the (now on top) old activity as a new Intent.
1863     *
1864     * <p>For example, consider a task consisting of the activities: A, B, C, D.
1865     * If D calls startActivity() with an Intent that resolves to the component
1866     * of activity B, then C and D will be finished and B receive the given
1867     * Intent, resulting in the stack now being: A, B.
1868     *
1869     * <p>The currently running instance of task B in the above example will
1870     * either receive the new intent you are starting here in its
1871     * onNewIntent() method, or be itself finished and restarted with the
1872     * new intent.  If it has declared its launch mode to be "multiple" (the
1873     * default) it will be finished and re-created; for all other launch modes
1874     * it will receive the Intent in the current instance.
1875     *
1876     * <p>This launch mode can also be used to good effect in conjunction with
1877     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
1878     * of a task, it will bring any currently running instance of that task
1879     * to the foreground, and then clear it to its root state.  This is
1880     * especially useful, for example, when launching an activity from the
1881     * notification manager.
1882     *
1883     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
1884     * Activities and Tasks</a> for more details on tasks.
1885     */
1886    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
1887    /**
1888     * If set and this intent is being used to launch a new activity from an
1889     * existing one, then the reply target of the existing activity will be
1890     * transfered to the new activity.  This way the new activity can call
1891     * {@link android.app.Activity#setResult} and have that result sent back to
1892     * the reply target of the original activity.
1893     */
1894    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
1895    /**
1896     * If set and this intent is being used to launch a new activity from an
1897     * existing one, the current activity will not be counted as the top
1898     * activity for deciding whether the new intent should be delivered to
1899     * the top instead of starting a new one.  The previous activity will
1900     * be used as the top, with the assumption being that the current activity
1901     * will finish itself immediately.
1902     */
1903    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
1904    /**
1905     * If set, the new activity is not kept in the list of recently launched
1906     * activities.
1907     */
1908    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
1909    /**
1910     * This flag is not normally set by application code, but set for you by
1911     * the system as described in the
1912     * {@link android.R.styleable#AndroidManifestActivity_launchMode
1913     * launchMode} documentation for the singleTask mode.
1914     */
1915    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
1916    /**
1917     * If set, and this activity is either being started in a new task or
1918     * bringing to the top an existing task, then it will be launched as
1919     * the front door of the task.  This will result in the application of
1920     * any affinities needed to have that task in the proper state (either
1921     * moving activities to or from it), or simply resetting that task to
1922     * its initial state if needed.
1923     */
1924    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
1925    /**
1926     * This flag is not normally set by application code, but set for you by
1927     * the system if this activity is being launched from history
1928     * (longpress home key).
1929     */
1930    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
1931    /**
1932     * If set, this marks a point in the task's activity stack that should
1933     * be cleared when the task is reset.  That is, the next time the task
1934     * is broad to the foreground with
1935     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
1936     * the user re-launching it from home), this activity and all on top of
1937     * it will be finished so that the user does not return to them, but
1938     * instead returns to whatever activity preceeded it.
1939     *
1940     * <p>This is useful for cases where you have a logical break in your
1941     * application.  For example, an e-mail application may have a command
1942     * to view an attachment, which launches an image view activity to
1943     * display it.  This activity should be part of the e-mail application's
1944     * task, since it is a part of the task the user is involved in.  However,
1945     * if the user leaves that task, and later selects the e-mail app from
1946     * home, we may like them to return to the conversation they were
1947     * viewing, not the picture attachment, since that is confusing.  By
1948     * setting this flag when launching the image viewer, that viewer and
1949     * any activities it starts will be removed the next time the user returns
1950     * to mail.
1951     */
1952    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
1953    /**
1954     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
1955     * callback from occurring on the current frontmost activity before it is
1956     * paused as the newly-started activity is brought to the front.
1957     *
1958     * <p>Typically, an activity can rely on that callback to indicate that an
1959     * explicit user action has caused their activity to be moved out of the
1960     * foreground. The callback marks an appropriate point in the activity's
1961     * lifecycle for it to dismiss any notifications that it intends to display
1962     * "until the user has seen them," such as a blinking LED.
1963     *
1964     * <p>If an activity is ever started via any non-user-driven events such as
1965     * phone-call receipt or an alarm handler, this flag should be passed to {@link
1966     * Context#startActivity Context.startActivity}, ensuring that the pausing
1967     * activity does not think the user has acknowledged its notification.
1968     */
1969    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
1970    /**
1971     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
1972     * this flag will cause the launched activity to be brought to the front of its
1973     * task's history stack if it is already running.
1974     *
1975     * <p>For example, consider a task consisting of four activities: A, B, C, D.
1976     * If D calls startActivity() with an Intent that resolves to the component
1977     * of activity B, then B will be brought to the front of the history stack,
1978     * with this resulting order:  A, C, D, B.
1979     *
1980     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
1981     * specified.
1982     */
1983    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
1984    /**
1985     * If set, when sending a broadcast only registered receivers will be
1986     * called -- no BroadcastReceiver components will be launched.
1987     */
1988    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
1989    /**
1990     * If set, when sending a broadcast <i>before boot has completed</i> only
1991     * registered receivers will be called -- no BroadcastReceiver components
1992     * will be launched.  Sticky intent state will be recorded properly even
1993     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
1994     * is specified in the broadcast intent, this flag is unnecessary.
1995     *
1996     * <p>This flag is only for use by system sevices as a convenience to
1997     * avoid having to implement a more complex mechanism around detection
1998     * of boot completion.
1999     *
2000     * @hide
2001     */
2002    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2003
2004    // ---------------------------------------------------------------------
2005
2006    private String mAction;
2007    private Uri mData;
2008    private String mType;
2009    private ComponentName mComponent;
2010    private int mFlags;
2011    private HashSet<String> mCategories;
2012    private Bundle mExtras;
2013
2014    // ---------------------------------------------------------------------
2015
2016    /**
2017     * Create an empty intent.
2018     */
2019    public Intent() {
2020    }
2021
2022    /**
2023     * Copy constructor.
2024     */
2025    public Intent(Intent o) {
2026        this.mAction = o.mAction;
2027        this.mData = o.mData;
2028        this.mType = o.mType;
2029        this.mComponent = o.mComponent;
2030        this.mFlags = o.mFlags;
2031        if (o.mCategories != null) {
2032            this.mCategories = new HashSet<String>(o.mCategories);
2033        }
2034        if (o.mExtras != null) {
2035            this.mExtras = new Bundle(o.mExtras);
2036        }
2037    }
2038
2039    @Override
2040    public Object clone() {
2041        return new Intent(this);
2042    }
2043
2044    private Intent(Intent o, boolean all) {
2045        this.mAction = o.mAction;
2046        this.mData = o.mData;
2047        this.mType = o.mType;
2048        this.mComponent = o.mComponent;
2049        if (o.mCategories != null) {
2050            this.mCategories = new HashSet<String>(o.mCategories);
2051        }
2052    }
2053
2054    /**
2055     * Make a clone of only the parts of the Intent that are relevant for
2056     * filter matching: the action, data, type, component, and categories.
2057     */
2058    public Intent cloneFilter() {
2059        return new Intent(this, false);
2060    }
2061
2062    /**
2063     * Create an intent with a given action.  All other fields (data, type,
2064     * class) are null.  Note that the action <em>must</em> be in a
2065     * namespace because Intents are used globally in the system -- for
2066     * example the system VIEW action is android.intent.action.VIEW; an
2067     * application's custom action would be something like
2068     * com.google.app.myapp.CUSTOM_ACTION.
2069     *
2070     * @param action The Intent action, such as ACTION_VIEW.
2071     */
2072    public Intent(String action) {
2073        mAction = action;
2074    }
2075
2076    /**
2077     * Create an intent with a given action and for a given data url.  Note
2078     * that the action <em>must</em> be in a namespace because Intents are
2079     * used globally in the system -- for example the system VIEW action is
2080     * android.intent.action.VIEW; an application's custom action would be
2081     * something like com.google.app.myapp.CUSTOM_ACTION.
2082     *
2083     * @param action The Intent action, such as ACTION_VIEW.
2084     * @param uri The Intent data URI.
2085     */
2086    public Intent(String action, Uri uri) {
2087        mAction = action;
2088        mData = uri;
2089    }
2090
2091    /**
2092     * Create an intent for a specific component.  All other fields (action, data,
2093     * type, class) are null, though they can be modified later with explicit
2094     * calls.  This provides a convenient way to create an intent that is
2095     * intended to execute a hard-coded class name, rather than relying on the
2096     * system to find an appropriate class for you; see {@link #setComponent}
2097     * for more information on the repercussions of this.
2098     *
2099     * @param packageContext A Context of the application package implementing
2100     * this class.
2101     * @param cls The component class that is to be used for the intent.
2102     *
2103     * @see #setClass
2104     * @see #setComponent
2105     * @see #Intent(String, android.net.Uri , Context, Class)
2106     */
2107    public Intent(Context packageContext, Class<?> cls) {
2108        mComponent = new ComponentName(packageContext, cls);
2109    }
2110
2111    /**
2112     * Create an intent for a specific component with a specified action and data.
2113     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2114     * construct the Intent and then calling {@link #setClass} to set its
2115     * class.
2116     *
2117     * @param action The Intent action, such as ACTION_VIEW.
2118     * @param uri The Intent data URI.
2119     * @param packageContext A Context of the application package implementing
2120     * this class.
2121     * @param cls The component class that is to be used for the intent.
2122     *
2123     * @see #Intent(String, android.net.Uri)
2124     * @see #Intent(Context, Class)
2125     * @see #setClass
2126     * @see #setComponent
2127     */
2128    public Intent(String action, Uri uri,
2129            Context packageContext, Class<?> cls) {
2130        mAction = action;
2131        mData = uri;
2132        mComponent = new ComponentName(packageContext, cls);
2133    }
2134
2135    /**
2136     * Create an intent from a URI.  This URI may encode the action,
2137     * category, and other intent fields, if it was returned by toURI().  If
2138     * the Intent was not generate by toURI(), its data will be the entire URI
2139     * and its action will be ACTION_VIEW.
2140     *
2141     * <p>The URI given here must not be relative -- that is, it must include
2142     * the scheme and full path.
2143     *
2144     * @param uri The URI to turn into an Intent.
2145     *
2146     * @return Intent The newly created Intent object.
2147     *
2148     * @see #toURI
2149     */
2150    public static Intent getIntent(String uri) throws URISyntaxException {
2151        int i = 0;
2152        try {
2153            // simple case
2154            i = uri.lastIndexOf("#");
2155            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2156
2157            // old format Intent URI
2158            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2159
2160            // new format
2161            Intent intent = new Intent(ACTION_VIEW);
2162
2163            // fetch data part, if present
2164            if (i > 0) {
2165                intent.mData = Uri.parse(uri.substring(0, i));
2166            }
2167            i += "#Intent;".length();
2168
2169            // loop over contents of Intent, all name=value;
2170            while (!uri.startsWith("end", i)) {
2171                int eq = uri.indexOf('=', i);
2172                int semi = uri.indexOf(';', eq);
2173                String value = uri.substring(eq + 1, semi);
2174
2175                // action
2176                if (uri.startsWith("action=", i)) {
2177                    intent.mAction = value;
2178                }
2179
2180                // categories
2181                else if (uri.startsWith("category=", i)) {
2182                    intent.addCategory(value);
2183                }
2184
2185                // type
2186                else if (uri.startsWith("type=", i)) {
2187                    intent.mType = value;
2188                }
2189
2190                // launch  flags
2191                else if (uri.startsWith("launchFlags=", i)) {
2192                    intent.mFlags = Integer.decode(value).intValue();
2193                }
2194
2195                // component
2196                else if (uri.startsWith("component=", i)) {
2197                    intent.mComponent = ComponentName.unflattenFromString(value);
2198                }
2199
2200                // extra
2201                else {
2202                    String key = Uri.decode(uri.substring(i + 2, eq));
2203                    value = Uri.decode(value);
2204                    // create Bundle if it doesn't already exist
2205                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2206                    Bundle b = intent.mExtras;
2207                    // add EXTRA
2208                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2209                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2210                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2211                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2212                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2213                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2214                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2215                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2216                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2217                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2218                }
2219
2220                // move to the next item
2221                i = semi + 1;
2222            }
2223
2224            return intent;
2225
2226        } catch (IndexOutOfBoundsException e) {
2227            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2228        }
2229    }
2230
2231    public static Intent getIntentOld(String uri) throws URISyntaxException {
2232        Intent intent;
2233
2234        int i = uri.lastIndexOf('#');
2235        if (i >= 0) {
2236            Uri data = null;
2237            String action = null;
2238            if (i > 0) {
2239                data = Uri.parse(uri.substring(0, i));
2240            }
2241
2242            i++;
2243
2244            if (uri.regionMatches(i, "action(", 0, 7)) {
2245                i += 7;
2246                int j = uri.indexOf(')', i);
2247                action = uri.substring(i, j);
2248                i = j + 1;
2249            }
2250
2251            intent = new Intent(action, data);
2252
2253            if (uri.regionMatches(i, "categories(", 0, 11)) {
2254                i += 11;
2255                int j = uri.indexOf(')', i);
2256                while (i < j) {
2257                    int sep = uri.indexOf('!', i);
2258                    if (sep < 0) sep = j;
2259                    if (i < sep) {
2260                        intent.addCategory(uri.substring(i, sep));
2261                    }
2262                    i = sep + 1;
2263                }
2264                i = j + 1;
2265            }
2266
2267            if (uri.regionMatches(i, "type(", 0, 5)) {
2268                i += 5;
2269                int j = uri.indexOf(')', i);
2270                intent.mType = uri.substring(i, j);
2271                i = j + 1;
2272            }
2273
2274            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2275                i += 12;
2276                int j = uri.indexOf(')', i);
2277                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2278                i = j + 1;
2279            }
2280
2281            if (uri.regionMatches(i, "component(", 0, 10)) {
2282                i += 10;
2283                int j = uri.indexOf(')', i);
2284                int sep = uri.indexOf('!', i);
2285                if (sep >= 0 && sep < j) {
2286                    String pkg = uri.substring(i, sep);
2287                    String cls = uri.substring(sep + 1, j);
2288                    intent.mComponent = new ComponentName(pkg, cls);
2289                }
2290                i = j + 1;
2291            }
2292
2293            if (uri.regionMatches(i, "extras(", 0, 7)) {
2294                i += 7;
2295
2296                final int closeParen = uri.indexOf(')', i);
2297                if (closeParen == -1) throw new URISyntaxException(uri,
2298                        "EXTRA missing trailing ')'", i);
2299
2300                while (i < closeParen) {
2301                    // fetch the key value
2302                    int j = uri.indexOf('=', i);
2303                    if (j <= i + 1 || i >= closeParen) {
2304                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2305                    }
2306                    char type = uri.charAt(i);
2307                    i++;
2308                    String key = uri.substring(i, j);
2309                    i = j + 1;
2310
2311                    // get type-value
2312                    j = uri.indexOf('!', i);
2313                    if (j == -1 || j >= closeParen) j = closeParen;
2314                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2315                    String value = uri.substring(i, j);
2316                    i = j;
2317
2318                    // create Bundle if it doesn't already exist
2319                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2320
2321                    // add item to bundle
2322                    try {
2323                        switch (type) {
2324                            case 'S':
2325                                intent.mExtras.putString(key, Uri.decode(value));
2326                                break;
2327                            case 'B':
2328                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2329                                break;
2330                            case 'b':
2331                                intent.mExtras.putByte(key, Byte.parseByte(value));
2332                                break;
2333                            case 'c':
2334                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2335                                break;
2336                            case 'd':
2337                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2338                                break;
2339                            case 'f':
2340                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2341                                break;
2342                            case 'i':
2343                                intent.mExtras.putInt(key, Integer.parseInt(value));
2344                                break;
2345                            case 'l':
2346                                intent.mExtras.putLong(key, Long.parseLong(value));
2347                                break;
2348                            case 's':
2349                                intent.mExtras.putShort(key, Short.parseShort(value));
2350                                break;
2351                            default:
2352                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2353                        }
2354                    } catch (NumberFormatException e) {
2355                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2356                    }
2357
2358                    char ch = uri.charAt(i);
2359                    if (ch == ')') break;
2360                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2361                    i++;
2362                }
2363            }
2364
2365            if (intent.mAction == null) {
2366                // By default, if no action is specified, then use VIEW.
2367                intent.mAction = ACTION_VIEW;
2368            }
2369
2370        } else {
2371            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2372        }
2373
2374        return intent;
2375    }
2376
2377    /**
2378     * Retrieve the general action to be performed, such as
2379     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2380     * the information in the intent should be interpreted -- most importantly,
2381     * what to do with the data returned by {@link #getData}.
2382     *
2383     * @return The action of this intent or null if none is specified.
2384     *
2385     * @see #setAction
2386     */
2387    public String getAction() {
2388        return mAction;
2389    }
2390
2391    /**
2392     * Retrieve data this intent is operating on.  This URI specifies the name
2393     * of the data; often it uses the content: scheme, specifying data in a
2394     * content provider.  Other schemes may be handled by specific activities,
2395     * such as http: by the web browser.
2396     *
2397     * @return The URI of the data this intent is targeting or null.
2398     *
2399     * @see #getScheme
2400     * @see #setData
2401     */
2402    public Uri getData() {
2403        return mData;
2404    }
2405
2406    /**
2407     * The same as {@link #getData()}, but returns the URI as an encoded
2408     * String.
2409     */
2410    public String getDataString() {
2411        return mData != null ? mData.toString() : null;
2412    }
2413
2414    /**
2415     * Return the scheme portion of the intent's data.  If the data is null or
2416     * does not include a scheme, null is returned.  Otherwise, the scheme
2417     * prefix without the final ':' is returned, i.e. "http".
2418     *
2419     * <p>This is the same as calling getData().getScheme() (and checking for
2420     * null data).
2421     *
2422     * @return The scheme of this intent.
2423     *
2424     * @see #getData
2425     */
2426    public String getScheme() {
2427        return mData != null ? mData.getScheme() : null;
2428    }
2429
2430    /**
2431     * Retrieve any explicit MIME type included in the intent.  This is usually
2432     * null, as the type is determined by the intent data.
2433     *
2434     * @return If a type was manually set, it is returned; else null is
2435     *         returned.
2436     *
2437     * @see #resolveType(ContentResolver)
2438     * @see #setType
2439     */
2440    public String getType() {
2441        return mType;
2442    }
2443
2444    /**
2445     * Return the MIME data type of this intent.  If the type field is
2446     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2447     * the type of that data is returned.  If neither fields are set, a null is
2448     * returned.
2449     *
2450     * @return The MIME type of this intent.
2451     *
2452     * @see #getType
2453     * @see #resolveType(ContentResolver)
2454     */
2455    public String resolveType(Context context) {
2456        return resolveType(context.getContentResolver());
2457    }
2458
2459    /**
2460     * Return the MIME data type of this intent.  If the type field is
2461     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2462     * the type of that data is returned.  If neither fields are set, a null is
2463     * returned.
2464     *
2465     * @param resolver A ContentResolver that can be used to determine the MIME
2466     *                 type of the intent's data.
2467     *
2468     * @return The MIME type of this intent.
2469     *
2470     * @see #getType
2471     * @see #resolveType(Context)
2472     */
2473    public String resolveType(ContentResolver resolver) {
2474        if (mType != null) {
2475            return mType;
2476        }
2477        if (mData != null) {
2478            if ("content".equals(mData.getScheme())) {
2479                return resolver.getType(mData);
2480            }
2481        }
2482        return null;
2483    }
2484
2485    /**
2486     * Return the MIME data type of this intent, only if it will be needed for
2487     * intent resolution.  This is not generally useful for application code;
2488     * it is used by the frameworks for communicating with back-end system
2489     * services.
2490     *
2491     * @param resolver A ContentResolver that can be used to determine the MIME
2492     *                 type of the intent's data.
2493     *
2494     * @return The MIME type of this intent, or null if it is unknown or not
2495     *         needed.
2496     */
2497    public String resolveTypeIfNeeded(ContentResolver resolver) {
2498        if (mComponent != null) {
2499            return mType;
2500        }
2501        return resolveType(resolver);
2502    }
2503
2504    /**
2505     * Check if an category exists in the intent.
2506     *
2507     * @param category The category to check.
2508     *
2509     * @return boolean True if the intent contains the category, else false.
2510     *
2511     * @see #getCategories
2512     * @see #addCategory
2513     */
2514    public boolean hasCategory(String category) {
2515        return mCategories != null && mCategories.contains(category);
2516    }
2517
2518    /**
2519     * Return the set of all categories in the intent.  If there are no categories,
2520     * returns NULL.
2521     *
2522     * @return Set The set of categories you can examine.  Do not modify!
2523     *
2524     * @see #hasCategory
2525     * @see #addCategory
2526     */
2527    public Set<String> getCategories() {
2528        return mCategories;
2529    }
2530
2531    /**
2532     * Sets the ClassLoader that will be used when unmarshalling
2533     * any Parcelable values from the extras of this Intent.
2534     *
2535     * @param loader a ClassLoader, or null to use the default loader
2536     * at the time of unmarshalling.
2537     */
2538    public void setExtrasClassLoader(ClassLoader loader) {
2539        if (mExtras != null) {
2540            mExtras.setClassLoader(loader);
2541        }
2542    }
2543
2544    /**
2545     * Returns true if an extra value is associated with the given name.
2546     * @param name the extra's name
2547     * @return true if the given extra is present.
2548     */
2549    public boolean hasExtra(String name) {
2550        return mExtras != null && mExtras.containsKey(name);
2551    }
2552
2553    /**
2554     * Returns true if the Intent's extras contain a parcelled file descriptor.
2555     * @return true if the Intent contains a parcelled file descriptor.
2556     */
2557    public boolean hasFileDescriptors() {
2558        return mExtras != null && mExtras.hasFileDescriptors();
2559    }
2560
2561    /**
2562     * Retrieve extended data from the intent.
2563     *
2564     * @param name The name of the desired item.
2565     *
2566     * @return the value of an item that previously added with putExtra()
2567     * or null if none was found.
2568     *
2569     * @deprecated
2570     * @hide
2571     */
2572    @Deprecated
2573    public Object getExtra(String name) {
2574        return getExtra(name, null);
2575    }
2576
2577    /**
2578     * Retrieve extended data from the intent.
2579     *
2580     * @param name The name of the desired item.
2581     * @param defaultValue the value to be returned if no value of the desired
2582     * type is stored with the given name.
2583     *
2584     * @return the value of an item that previously added with putExtra()
2585     * or the default value if none was found.
2586     *
2587     * @see #putExtra(String, boolean)
2588     */
2589    public boolean getBooleanExtra(String name, boolean defaultValue) {
2590        return mExtras == null ? defaultValue :
2591            mExtras.getBoolean(name, defaultValue);
2592    }
2593
2594    /**
2595     * Retrieve extended data from the intent.
2596     *
2597     * @param name The name of the desired item.
2598     * @param defaultValue the value to be returned if no value of the desired
2599     * type is stored with the given name.
2600     *
2601     * @return the value of an item that previously added with putExtra()
2602     * or the default value if none was found.
2603     *
2604     * @see #putExtra(String, byte)
2605     */
2606    public byte getByteExtra(String name, byte defaultValue) {
2607        return mExtras == null ? defaultValue :
2608            mExtras.getByte(name, defaultValue);
2609    }
2610
2611    /**
2612     * Retrieve extended data from the intent.
2613     *
2614     * @param name The name of the desired item.
2615     * @param defaultValue the value to be returned if no value of the desired
2616     * type is stored with the given name.
2617     *
2618     * @return the value of an item that previously added with putExtra()
2619     * or the default value if none was found.
2620     *
2621     * @see #putExtra(String, short)
2622     */
2623    public short getShortExtra(String name, short defaultValue) {
2624        return mExtras == null ? defaultValue :
2625            mExtras.getShort(name, defaultValue);
2626    }
2627
2628    /**
2629     * Retrieve extended data from the intent.
2630     *
2631     * @param name The name of the desired item.
2632     * @param defaultValue the value to be returned if no value of the desired
2633     * type is stored with the given name.
2634     *
2635     * @return the value of an item that previously added with putExtra()
2636     * or the default value if none was found.
2637     *
2638     * @see #putExtra(String, char)
2639     */
2640    public char getCharExtra(String name, char defaultValue) {
2641        return mExtras == null ? defaultValue :
2642            mExtras.getChar(name, defaultValue);
2643    }
2644
2645    /**
2646     * Retrieve extended data from the intent.
2647     *
2648     * @param name The name of the desired item.
2649     * @param defaultValue the value to be returned if no value of the desired
2650     * type is stored with the given name.
2651     *
2652     * @return the value of an item that previously added with putExtra()
2653     * or the default value if none was found.
2654     *
2655     * @see #putExtra(String, int)
2656     */
2657    public int getIntExtra(String name, int defaultValue) {
2658        return mExtras == null ? defaultValue :
2659            mExtras.getInt(name, defaultValue);
2660    }
2661
2662    /**
2663     * Retrieve extended data from the intent.
2664     *
2665     * @param name The name of the desired item.
2666     * @param defaultValue the value to be returned if no value of the desired
2667     * type is stored with the given name.
2668     *
2669     * @return the value of an item that previously added with putExtra()
2670     * or the default value if none was found.
2671     *
2672     * @see #putExtra(String, long)
2673     */
2674    public long getLongExtra(String name, long defaultValue) {
2675        return mExtras == null ? defaultValue :
2676            mExtras.getLong(name, defaultValue);
2677    }
2678
2679    /**
2680     * Retrieve extended data from the intent.
2681     *
2682     * @param name The name of the desired item.
2683     * @param defaultValue the value to be returned if no value of the desired
2684     * type is stored with the given name.
2685     *
2686     * @return the value of an item that previously added with putExtra(),
2687     * or the default value if no such item is present
2688     *
2689     * @see #putExtra(String, float)
2690     */
2691    public float getFloatExtra(String name, float defaultValue) {
2692        return mExtras == null ? defaultValue :
2693            mExtras.getFloat(name, defaultValue);
2694    }
2695
2696    /**
2697     * Retrieve extended data from the intent.
2698     *
2699     * @param name The name of the desired item.
2700     * @param defaultValue the value to be returned if no value of the desired
2701     * type is stored with the given name.
2702     *
2703     * @return the value of an item that previously added with putExtra()
2704     * or the default value if none was found.
2705     *
2706     * @see #putExtra(String, double)
2707     */
2708    public double getDoubleExtra(String name, double defaultValue) {
2709        return mExtras == null ? defaultValue :
2710            mExtras.getDouble(name, defaultValue);
2711    }
2712
2713    /**
2714     * Retrieve extended data from the intent.
2715     *
2716     * @param name The name of the desired item.
2717     *
2718     * @return the value of an item that previously added with putExtra()
2719     * or null if no String value was found.
2720     *
2721     * @see #putExtra(String, String)
2722     */
2723    public String getStringExtra(String name) {
2724        return mExtras == null ? null : mExtras.getString(name);
2725    }
2726
2727    /**
2728     * Retrieve extended data from the intent.
2729     *
2730     * @param name The name of the desired item.
2731     *
2732     * @return the value of an item that previously added with putExtra()
2733     * or null if no CharSequence value was found.
2734     *
2735     * @see #putExtra(String, CharSequence)
2736     */
2737    public CharSequence getCharSequenceExtra(String name) {
2738        return mExtras == null ? null : mExtras.getCharSequence(name);
2739    }
2740
2741    /**
2742     * Retrieve extended data from the intent.
2743     *
2744     * @param name The name of the desired item.
2745     *
2746     * @return the value of an item that previously added with putExtra()
2747     * or null if no Parcelable value was found.
2748     *
2749     * @see #putExtra(String, Parcelable)
2750     */
2751    public <T extends Parcelable> T getParcelableExtra(String name) {
2752        return mExtras == null ? null : mExtras.<T>getParcelable(name);
2753    }
2754
2755    /**
2756     * Retrieve extended data from the intent.
2757     *
2758     * @param name The name of the desired item.
2759     *
2760     * @return the value of an item that previously added with putExtra()
2761     * or null if no Parcelable[] value was found.
2762     *
2763     * @see #putExtra(String, Parcelable[])
2764     */
2765    public Parcelable[] getParcelableArrayExtra(String name) {
2766        return mExtras == null ? null : mExtras.getParcelableArray(name);
2767    }
2768
2769    /**
2770     * Retrieve extended data from the intent.
2771     *
2772     * @param name The name of the desired item.
2773     *
2774     * @return the value of an item that previously added with putExtra()
2775     * or null if no ArrayList<Parcelable> value was found.
2776     *
2777     * @see #putParcelableArrayListExtra(String, ArrayList)
2778     */
2779    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
2780        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
2781    }
2782
2783    /**
2784     * Retrieve extended data from the intent.
2785     *
2786     * @param name The name of the desired item.
2787     *
2788     * @return the value of an item that previously added with putExtra()
2789     * or null if no Serializable value was found.
2790     *
2791     * @see #putExtra(String, Serializable)
2792     */
2793    public Serializable getSerializableExtra(String name) {
2794        return mExtras == null ? null : mExtras.getSerializable(name);
2795    }
2796
2797    /**
2798     * Retrieve extended data from the intent.
2799     *
2800     * @param name The name of the desired item.
2801     *
2802     * @return the value of an item that previously added with putExtra()
2803     * or null if no ArrayList<Integer> value was found.
2804     *
2805     * @see #putIntegerArrayListExtra(String, ArrayList)
2806     */
2807    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
2808        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
2809    }
2810
2811    /**
2812     * Retrieve extended data from the intent.
2813     *
2814     * @param name The name of the desired item.
2815     *
2816     * @return the value of an item that previously added with putExtra()
2817     * or null if no ArrayList<String> value was found.
2818     *
2819     * @see #putStringArrayListExtra(String, ArrayList)
2820     */
2821    public ArrayList<String> getStringArrayListExtra(String name) {
2822        return mExtras == null ? null : mExtras.getStringArrayList(name);
2823    }
2824
2825    /**
2826     * Retrieve extended data from the intent.
2827     *
2828     * @param name The name of the desired item.
2829     *
2830     * @return the value of an item that previously added with putExtra()
2831     * or null if no boolean array value was found.
2832     *
2833     * @see #putExtra(String, boolean[])
2834     */
2835    public boolean[] getBooleanArrayExtra(String name) {
2836        return mExtras == null ? null : mExtras.getBooleanArray(name);
2837    }
2838
2839    /**
2840     * Retrieve extended data from the intent.
2841     *
2842     * @param name The name of the desired item.
2843     *
2844     * @return the value of an item that previously added with putExtra()
2845     * or null if no byte array value was found.
2846     *
2847     * @see #putExtra(String, byte[])
2848     */
2849    public byte[] getByteArrayExtra(String name) {
2850        return mExtras == null ? null : mExtras.getByteArray(name);
2851    }
2852
2853    /**
2854     * Retrieve extended data from the intent.
2855     *
2856     * @param name The name of the desired item.
2857     *
2858     * @return the value of an item that previously added with putExtra()
2859     * or null if no short array value was found.
2860     *
2861     * @see #putExtra(String, short[])
2862     */
2863    public short[] getShortArrayExtra(String name) {
2864        return mExtras == null ? null : mExtras.getShortArray(name);
2865    }
2866
2867    /**
2868     * Retrieve extended data from the intent.
2869     *
2870     * @param name The name of the desired item.
2871     *
2872     * @return the value of an item that previously added with putExtra()
2873     * or null if no char array value was found.
2874     *
2875     * @see #putExtra(String, char[])
2876     */
2877    public char[] getCharArrayExtra(String name) {
2878        return mExtras == null ? null : mExtras.getCharArray(name);
2879    }
2880
2881    /**
2882     * Retrieve extended data from the intent.
2883     *
2884     * @param name The name of the desired item.
2885     *
2886     * @return the value of an item that previously added with putExtra()
2887     * or null if no int array value was found.
2888     *
2889     * @see #putExtra(String, int[])
2890     */
2891    public int[] getIntArrayExtra(String name) {
2892        return mExtras == null ? null : mExtras.getIntArray(name);
2893    }
2894
2895    /**
2896     * Retrieve extended data from the intent.
2897     *
2898     * @param name The name of the desired item.
2899     *
2900     * @return the value of an item that previously added with putExtra()
2901     * or null if no long array value was found.
2902     *
2903     * @see #putExtra(String, long[])
2904     */
2905    public long[] getLongArrayExtra(String name) {
2906        return mExtras == null ? null : mExtras.getLongArray(name);
2907    }
2908
2909    /**
2910     * Retrieve extended data from the intent.
2911     *
2912     * @param name The name of the desired item.
2913     *
2914     * @return the value of an item that previously added with putExtra()
2915     * or null if no float array value was found.
2916     *
2917     * @see #putExtra(String, float[])
2918     */
2919    public float[] getFloatArrayExtra(String name) {
2920        return mExtras == null ? null : mExtras.getFloatArray(name);
2921    }
2922
2923    /**
2924     * Retrieve extended data from the intent.
2925     *
2926     * @param name The name of the desired item.
2927     *
2928     * @return the value of an item that previously added with putExtra()
2929     * or null if no double array value was found.
2930     *
2931     * @see #putExtra(String, double[])
2932     */
2933    public double[] getDoubleArrayExtra(String name) {
2934        return mExtras == null ? null : mExtras.getDoubleArray(name);
2935    }
2936
2937    /**
2938     * Retrieve extended data from the intent.
2939     *
2940     * @param name The name of the desired item.
2941     *
2942     * @return the value of an item that previously added with putExtra()
2943     * or null if no String array value was found.
2944     *
2945     * @see #putExtra(String, String[])
2946     */
2947    public String[] getStringArrayExtra(String name) {
2948        return mExtras == null ? null : mExtras.getStringArray(name);
2949    }
2950
2951    /**
2952     * Retrieve extended data from the intent.
2953     *
2954     * @param name The name of the desired item.
2955     *
2956     * @return the value of an item that previously added with putExtra()
2957     * or null if no Bundle value was found.
2958     *
2959     * @see #putExtra(String, Bundle)
2960     */
2961    public Bundle getBundleExtra(String name) {
2962        return mExtras == null ? null : mExtras.getBundle(name);
2963    }
2964
2965    /**
2966     * Retrieve extended data from the intent.
2967     *
2968     * @param name The name of the desired item.
2969     *
2970     * @return the value of an item that previously added with putExtra()
2971     * or null if no IBinder value was found.
2972     *
2973     * @see #putExtra(String, IBinder)
2974     *
2975     * @deprecated
2976     * @hide
2977     */
2978    @Deprecated
2979    public IBinder getIBinderExtra(String name) {
2980        return mExtras == null ? null : mExtras.getIBinder(name);
2981    }
2982
2983    /**
2984     * Retrieve extended data from the intent.
2985     *
2986     * @param name The name of the desired item.
2987     * @param defaultValue The default value to return in case no item is
2988     * associated with the key 'name'
2989     *
2990     * @return the value of an item that previously added with putExtra()
2991     * or defaultValue if none was found.
2992     *
2993     * @see #putExtra
2994     *
2995     * @deprecated
2996     * @hide
2997     */
2998    @Deprecated
2999    public Object getExtra(String name, Object defaultValue) {
3000        Object result = defaultValue;
3001        if (mExtras != null) {
3002            Object result2 = mExtras.get(name);
3003            if (result2 != null) {
3004                result = result2;
3005            }
3006        }
3007
3008        return result;
3009    }
3010
3011    /**
3012     * Retrieves a map of extended data from the intent.
3013     *
3014     * @return the map of all extras previously added with putExtra(),
3015     * or null if none have been added.
3016     */
3017    public Bundle getExtras() {
3018        return (mExtras != null)
3019                ? new Bundle(mExtras)
3020                : null;
3021    }
3022
3023    /**
3024     * Retrieve any special flags associated with this intent.  You will
3025     * normally just set them with {@link #setFlags} and let the system
3026     * take the appropriate action with them.
3027     *
3028     * @return int The currently set flags.
3029     *
3030     * @see #setFlags
3031     */
3032    public int getFlags() {
3033        return mFlags;
3034    }
3035
3036    /**
3037     * Retrieve the concrete component associated with the intent.  When receiving
3038     * an intent, this is the component that was found to best handle it (that is,
3039     * yourself) and will always be non-null; in all other cases it will be
3040     * null unless explicitly set.
3041     *
3042     * @return The name of the application component to handle the intent.
3043     *
3044     * @see #resolveActivity
3045     * @see #setComponent
3046     */
3047    public ComponentName getComponent() {
3048        return mComponent;
3049    }
3050
3051    /**
3052     * Return the Activity component that should be used to handle this intent.
3053     * The appropriate component is determined based on the information in the
3054     * intent, evaluated as follows:
3055     *
3056     * <p>If {@link #getComponent} returns an explicit class, that is returned
3057     * without any further consideration.
3058     *
3059     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3060     * category to be considered.
3061     *
3062     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3063     * action.
3064     *
3065     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3066     * this type.
3067     *
3068     * <p>If {@link #addCategory} has added any categories, the activity must
3069     * handle ALL of the categories specified.
3070     *
3071     * <p>If there are no activities that satisfy all of these conditions, a
3072     * null string is returned.
3073     *
3074     * <p>If multiple activities are found to satisfy the intent, the one with
3075     * the highest priority will be used.  If there are multiple activities
3076     * with the same priority, the system will either pick the best activity
3077     * based on user preference, or resolve to a system class that will allow
3078     * the user to pick an activity and forward from there.
3079     *
3080     * <p>This method is implemented simply by calling
3081     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3082     * true.</p>
3083     * <p> This API is called for you as part of starting an activity from an
3084     * intent.  You do not normally need to call it yourself.</p>
3085     *
3086     * @param pm The package manager with which to resolve the Intent.
3087     *
3088     * @return Name of the component implementing an activity that can
3089     *         display the intent.
3090     *
3091     * @see #setComponent
3092     * @see #getComponent
3093     * @see #resolveActivityInfo
3094     */
3095    public ComponentName resolveActivity(PackageManager pm) {
3096        if (mComponent != null) {
3097            return mComponent;
3098        }
3099
3100        ResolveInfo info = pm.resolveActivity(
3101            this, PackageManager.MATCH_DEFAULT_ONLY);
3102        if (info != null) {
3103            return new ComponentName(
3104                    info.activityInfo.applicationInfo.packageName,
3105                    info.activityInfo.name);
3106        }
3107
3108        return null;
3109    }
3110
3111    /**
3112     * Resolve the Intent into an {@link ActivityInfo}
3113     * describing the activity that should execute the intent.  Resolution
3114     * follows the same rules as described for {@link #resolveActivity}, but
3115     * you get back the completely information about the resolved activity
3116     * instead of just its class name.
3117     *
3118     * @param pm The package manager with which to resolve the Intent.
3119     * @param flags Addition information to retrieve as per
3120     * {@link PackageManager#getActivityInfo(ComponentName, int)
3121     * PackageManager.getActivityInfo()}.
3122     *
3123     * @return PackageManager.ActivityInfo
3124     *
3125     * @see #resolveActivity
3126     */
3127    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3128        ActivityInfo ai = null;
3129        if (mComponent != null) {
3130            try {
3131                ai = pm.getActivityInfo(mComponent, flags);
3132            } catch (PackageManager.NameNotFoundException e) {
3133                // ignore
3134            }
3135        } else {
3136            ResolveInfo info = pm.resolveActivity(
3137                this, PackageManager.MATCH_DEFAULT_ONLY);
3138            if (info != null) {
3139                ai = info.activityInfo;
3140            }
3141        }
3142
3143        return ai;
3144    }
3145
3146    /**
3147     * Set the general action to be performed.
3148     *
3149     * @param action An action name, such as ACTION_VIEW.  Application-specific
3150     *               actions should be prefixed with the vendor's package name.
3151     *
3152     * @return Returns the same Intent object, for chaining multiple calls
3153     * into a single statement.
3154     *
3155     * @see #getAction
3156     */
3157    public Intent setAction(String action) {
3158        mAction = action;
3159        return this;
3160    }
3161
3162    /**
3163     * Set the data this intent is operating on.  This method automatically
3164     * clears any type that was previously set by {@link #setType}.
3165     *
3166     * @param data The URI of the data this intent is now targeting.
3167     *
3168     * @return Returns the same Intent object, for chaining multiple calls
3169     * into a single statement.
3170     *
3171     * @see #getData
3172     * @see #setType
3173     * @see #setDataAndType
3174     */
3175    public Intent setData(Uri data) {
3176        mData = data;
3177        mType = null;
3178        return this;
3179    }
3180
3181    /**
3182     * Set an explicit MIME data type.  This is used to create intents that
3183     * only specify a type and not data, for example to indicate the type of
3184     * data to return.  This method automatically clears any data that was
3185     * previously set by {@link #setData}.
3186     *
3187     * @param type The MIME type of the data being handled by this intent.
3188     *
3189     * @return Returns the same Intent object, for chaining multiple calls
3190     * into a single statement.
3191     *
3192     * @see #getType
3193     * @see #setData
3194     * @see #setDataAndType
3195     */
3196    public Intent setType(String type) {
3197        mData = null;
3198        mType = type;
3199        return this;
3200    }
3201
3202    /**
3203     * (Usually optional) Set the data for the intent along with an explicit
3204     * MIME data type.  This method should very rarely be used -- it allows you
3205     * to override the MIME type that would ordinarily be inferred from the
3206     * data with your own type given here.
3207     *
3208     * @param data The URI of the data this intent is now targeting.
3209     * @param type The MIME type of the data being handled by this intent.
3210     *
3211     * @return Returns the same Intent object, for chaining multiple calls
3212     * into a single statement.
3213     *
3214     * @see #setData
3215     * @see #setType
3216     */
3217    public Intent setDataAndType(Uri data, String type) {
3218        mData = data;
3219        mType = type;
3220        return this;
3221    }
3222
3223    /**
3224     * Add a new category to the intent.  Categories provide additional detail
3225     * about the action the intent is perform.  When resolving an intent, only
3226     * activities that provide <em>all</em> of the requested categories will be
3227     * used.
3228     *
3229     * @param category The desired category.  This can be either one of the
3230     *               predefined Intent categories, or a custom category in your own
3231     *               namespace.
3232     *
3233     * @return Returns the same Intent object, for chaining multiple calls
3234     * into a single statement.
3235     *
3236     * @see #hasCategory
3237     * @see #removeCategory
3238     */
3239    public Intent addCategory(String category) {
3240        if (mCategories == null) {
3241            mCategories = new HashSet<String>();
3242        }
3243        mCategories.add(category);
3244        return this;
3245    }
3246
3247    /**
3248     * Remove an category from an intent.
3249     *
3250     * @param category The category to remove.
3251     *
3252     * @see #addCategory
3253     */
3254    public void removeCategory(String category) {
3255        if (mCategories != null) {
3256            mCategories.remove(category);
3257            if (mCategories.size() == 0) {
3258                mCategories = null;
3259            }
3260        }
3261    }
3262
3263    /**
3264     * Add extended data to the intent.  The name must include a package
3265     * prefix, for example the app com.android.contacts would use names
3266     * like "com.android.contacts.ShowAll".
3267     *
3268     * @param name The name of the extra data, with package prefix.
3269     * @param value The boolean data value.
3270     *
3271     * @return Returns the same Intent object, for chaining multiple calls
3272     * into a single statement.
3273     *
3274     * @see #putExtras
3275     * @see #removeExtra
3276     * @see #getBooleanExtra(String, boolean)
3277     */
3278    public Intent putExtra(String name, boolean value) {
3279        if (mExtras == null) {
3280            mExtras = new Bundle();
3281        }
3282        mExtras.putBoolean(name, value);
3283        return this;
3284    }
3285
3286    /**
3287     * Add extended data to the intent.  The name must include a package
3288     * prefix, for example the app com.android.contacts would use names
3289     * like "com.android.contacts.ShowAll".
3290     *
3291     * @param name The name of the extra data, with package prefix.
3292     * @param value The byte data value.
3293     *
3294     * @return Returns the same Intent object, for chaining multiple calls
3295     * into a single statement.
3296     *
3297     * @see #putExtras
3298     * @see #removeExtra
3299     * @see #getByteExtra(String, byte)
3300     */
3301    public Intent putExtra(String name, byte value) {
3302        if (mExtras == null) {
3303            mExtras = new Bundle();
3304        }
3305        mExtras.putByte(name, value);
3306        return this;
3307    }
3308
3309    /**
3310     * Add extended data to the intent.  The name must include a package
3311     * prefix, for example the app com.android.contacts would use names
3312     * like "com.android.contacts.ShowAll".
3313     *
3314     * @param name The name of the extra data, with package prefix.
3315     * @param value The char data value.
3316     *
3317     * @return Returns the same Intent object, for chaining multiple calls
3318     * into a single statement.
3319     *
3320     * @see #putExtras
3321     * @see #removeExtra
3322     * @see #getCharExtra(String, char)
3323     */
3324    public Intent putExtra(String name, char value) {
3325        if (mExtras == null) {
3326            mExtras = new Bundle();
3327        }
3328        mExtras.putChar(name, value);
3329        return this;
3330    }
3331
3332    /**
3333     * Add extended data to the intent.  The name must include a package
3334     * prefix, for example the app com.android.contacts would use names
3335     * like "com.android.contacts.ShowAll".
3336     *
3337     * @param name The name of the extra data, with package prefix.
3338     * @param value The short data value.
3339     *
3340     * @return Returns the same Intent object, for chaining multiple calls
3341     * into a single statement.
3342     *
3343     * @see #putExtras
3344     * @see #removeExtra
3345     * @see #getShortExtra(String, short)
3346     */
3347    public Intent putExtra(String name, short value) {
3348        if (mExtras == null) {
3349            mExtras = new Bundle();
3350        }
3351        mExtras.putShort(name, value);
3352        return this;
3353    }
3354
3355    /**
3356     * Add extended data to the intent.  The name must include a package
3357     * prefix, for example the app com.android.contacts would use names
3358     * like "com.android.contacts.ShowAll".
3359     *
3360     * @param name The name of the extra data, with package prefix.
3361     * @param value The integer data value.
3362     *
3363     * @return Returns the same Intent object, for chaining multiple calls
3364     * into a single statement.
3365     *
3366     * @see #putExtras
3367     * @see #removeExtra
3368     * @see #getIntExtra(String, int)
3369     */
3370    public Intent putExtra(String name, int value) {
3371        if (mExtras == null) {
3372            mExtras = new Bundle();
3373        }
3374        mExtras.putInt(name, value);
3375        return this;
3376    }
3377
3378    /**
3379     * Add extended data to the intent.  The name must include a package
3380     * prefix, for example the app com.android.contacts would use names
3381     * like "com.android.contacts.ShowAll".
3382     *
3383     * @param name The name of the extra data, with package prefix.
3384     * @param value The long data value.
3385     *
3386     * @return Returns the same Intent object, for chaining multiple calls
3387     * into a single statement.
3388     *
3389     * @see #putExtras
3390     * @see #removeExtra
3391     * @see #getLongExtra(String, long)
3392     */
3393    public Intent putExtra(String name, long value) {
3394        if (mExtras == null) {
3395            mExtras = new Bundle();
3396        }
3397        mExtras.putLong(name, value);
3398        return this;
3399    }
3400
3401    /**
3402     * Add extended data to the intent.  The name must include a package
3403     * prefix, for example the app com.android.contacts would use names
3404     * like "com.android.contacts.ShowAll".
3405     *
3406     * @param name The name of the extra data, with package prefix.
3407     * @param value The float data value.
3408     *
3409     * @return Returns the same Intent object, for chaining multiple calls
3410     * into a single statement.
3411     *
3412     * @see #putExtras
3413     * @see #removeExtra
3414     * @see #getFloatExtra(String, float)
3415     */
3416    public Intent putExtra(String name, float value) {
3417        if (mExtras == null) {
3418            mExtras = new Bundle();
3419        }
3420        mExtras.putFloat(name, value);
3421        return this;
3422    }
3423
3424    /**
3425     * Add extended data to the intent.  The name must include a package
3426     * prefix, for example the app com.android.contacts would use names
3427     * like "com.android.contacts.ShowAll".
3428     *
3429     * @param name The name of the extra data, with package prefix.
3430     * @param value The double data value.
3431     *
3432     * @return Returns the same Intent object, for chaining multiple calls
3433     * into a single statement.
3434     *
3435     * @see #putExtras
3436     * @see #removeExtra
3437     * @see #getDoubleExtra(String, double)
3438     */
3439    public Intent putExtra(String name, double value) {
3440        if (mExtras == null) {
3441            mExtras = new Bundle();
3442        }
3443        mExtras.putDouble(name, value);
3444        return this;
3445    }
3446
3447    /**
3448     * Add extended data to the intent.  The name must include a package
3449     * prefix, for example the app com.android.contacts would use names
3450     * like "com.android.contacts.ShowAll".
3451     *
3452     * @param name The name of the extra data, with package prefix.
3453     * @param value The String data value.
3454     *
3455     * @return Returns the same Intent object, for chaining multiple calls
3456     * into a single statement.
3457     *
3458     * @see #putExtras
3459     * @see #removeExtra
3460     * @see #getStringExtra(String)
3461     */
3462    public Intent putExtra(String name, String value) {
3463        if (mExtras == null) {
3464            mExtras = new Bundle();
3465        }
3466        mExtras.putString(name, value);
3467        return this;
3468    }
3469
3470    /**
3471     * Add extended data to the intent.  The name must include a package
3472     * prefix, for example the app com.android.contacts would use names
3473     * like "com.android.contacts.ShowAll".
3474     *
3475     * @param name The name of the extra data, with package prefix.
3476     * @param value The CharSequence data value.
3477     *
3478     * @return Returns the same Intent object, for chaining multiple calls
3479     * into a single statement.
3480     *
3481     * @see #putExtras
3482     * @see #removeExtra
3483     * @see #getCharSequenceExtra(String)
3484     */
3485    public Intent putExtra(String name, CharSequence value) {
3486        if (mExtras == null) {
3487            mExtras = new Bundle();
3488        }
3489        mExtras.putCharSequence(name, value);
3490        return this;
3491    }
3492
3493    /**
3494     * Add extended data to the intent.  The name must include a package
3495     * prefix, for example the app com.android.contacts would use names
3496     * like "com.android.contacts.ShowAll".
3497     *
3498     * @param name The name of the extra data, with package prefix.
3499     * @param value The Parcelable data value.
3500     *
3501     * @return Returns the same Intent object, for chaining multiple calls
3502     * into a single statement.
3503     *
3504     * @see #putExtras
3505     * @see #removeExtra
3506     * @see #getParcelableExtra(String)
3507     */
3508    public Intent putExtra(String name, Parcelable value) {
3509        if (mExtras == null) {
3510            mExtras = new Bundle();
3511        }
3512        mExtras.putParcelable(name, value);
3513        return this;
3514    }
3515
3516    /**
3517     * Add extended data to the intent.  The name must include a package
3518     * prefix, for example the app com.android.contacts would use names
3519     * like "com.android.contacts.ShowAll".
3520     *
3521     * @param name The name of the extra data, with package prefix.
3522     * @param value The Parcelable[] data value.
3523     *
3524     * @return Returns the same Intent object, for chaining multiple calls
3525     * into a single statement.
3526     *
3527     * @see #putExtras
3528     * @see #removeExtra
3529     * @see #getParcelableArrayExtra(String)
3530     */
3531    public Intent putExtra(String name, Parcelable[] value) {
3532        if (mExtras == null) {
3533            mExtras = new Bundle();
3534        }
3535        mExtras.putParcelableArray(name, value);
3536        return this;
3537    }
3538
3539    /**
3540     * Add extended data to the intent.  The name must include a package
3541     * prefix, for example the app com.android.contacts would use names
3542     * like "com.android.contacts.ShowAll".
3543     *
3544     * @param name The name of the extra data, with package prefix.
3545     * @param value The ArrayList<Parcelable> data value.
3546     *
3547     * @return Returns the same Intent object, for chaining multiple calls
3548     * into a single statement.
3549     *
3550     * @see #putExtras
3551     * @see #removeExtra
3552     * @see #getParcelableArrayListExtra(String)
3553     */
3554    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
3555        if (mExtras == null) {
3556            mExtras = new Bundle();
3557        }
3558        mExtras.putParcelableArrayList(name, value);
3559        return this;
3560    }
3561
3562    /**
3563     * Add extended data to the intent.  The name must include a package
3564     * prefix, for example the app com.android.contacts would use names
3565     * like "com.android.contacts.ShowAll".
3566     *
3567     * @param name The name of the extra data, with package prefix.
3568     * @param value The ArrayList<Integer> data value.
3569     *
3570     * @return Returns the same Intent object, for chaining multiple calls
3571     * into a single statement.
3572     *
3573     * @see #putExtras
3574     * @see #removeExtra
3575     * @see #getIntegerArrayListExtra(String)
3576     */
3577    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
3578        if (mExtras == null) {
3579            mExtras = new Bundle();
3580        }
3581        mExtras.putIntegerArrayList(name, value);
3582        return this;
3583    }
3584
3585    /**
3586     * Add extended data to the intent.  The name must include a package
3587     * prefix, for example the app com.android.contacts would use names
3588     * like "com.android.contacts.ShowAll".
3589     *
3590     * @param name The name of the extra data, with package prefix.
3591     * @param value The ArrayList<String> data value.
3592     *
3593     * @return Returns the same Intent object, for chaining multiple calls
3594     * into a single statement.
3595     *
3596     * @see #putExtras
3597     * @see #removeExtra
3598     * @see #getStringArrayListExtra(String)
3599     */
3600    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
3601        if (mExtras == null) {
3602            mExtras = new Bundle();
3603        }
3604        mExtras.putStringArrayList(name, value);
3605        return this;
3606    }
3607
3608    /**
3609     * Add extended data to the intent.  The name must include a package
3610     * prefix, for example the app com.android.contacts would use names
3611     * like "com.android.contacts.ShowAll".
3612     *
3613     * @param name The name of the extra data, with package prefix.
3614     * @param value The Serializable data value.
3615     *
3616     * @return Returns the same Intent object, for chaining multiple calls
3617     * into a single statement.
3618     *
3619     * @see #putExtras
3620     * @see #removeExtra
3621     * @see #getSerializableExtra(String)
3622     */
3623    public Intent putExtra(String name, Serializable value) {
3624        if (mExtras == null) {
3625            mExtras = new Bundle();
3626        }
3627        mExtras.putSerializable(name, value);
3628        return this;
3629    }
3630
3631    /**
3632     * Add extended data to the intent.  The name must include a package
3633     * prefix, for example the app com.android.contacts would use names
3634     * like "com.android.contacts.ShowAll".
3635     *
3636     * @param name The name of the extra data, with package prefix.
3637     * @param value The boolean array data value.
3638     *
3639     * @return Returns the same Intent object, for chaining multiple calls
3640     * into a single statement.
3641     *
3642     * @see #putExtras
3643     * @see #removeExtra
3644     * @see #getBooleanArrayExtra(String)
3645     */
3646    public Intent putExtra(String name, boolean[] value) {
3647        if (mExtras == null) {
3648            mExtras = new Bundle();
3649        }
3650        mExtras.putBooleanArray(name, value);
3651        return this;
3652    }
3653
3654    /**
3655     * Add extended data to the intent.  The name must include a package
3656     * prefix, for example the app com.android.contacts would use names
3657     * like "com.android.contacts.ShowAll".
3658     *
3659     * @param name The name of the extra data, with package prefix.
3660     * @param value The byte array data value.
3661     *
3662     * @return Returns the same Intent object, for chaining multiple calls
3663     * into a single statement.
3664     *
3665     * @see #putExtras
3666     * @see #removeExtra
3667     * @see #getByteArrayExtra(String)
3668     */
3669    public Intent putExtra(String name, byte[] value) {
3670        if (mExtras == null) {
3671            mExtras = new Bundle();
3672        }
3673        mExtras.putByteArray(name, value);
3674        return this;
3675    }
3676
3677    /**
3678     * Add extended data to the intent.  The name must include a package
3679     * prefix, for example the app com.android.contacts would use names
3680     * like "com.android.contacts.ShowAll".
3681     *
3682     * @param name The name of the extra data, with package prefix.
3683     * @param value The short array data value.
3684     *
3685     * @return Returns the same Intent object, for chaining multiple calls
3686     * into a single statement.
3687     *
3688     * @see #putExtras
3689     * @see #removeExtra
3690     * @see #getShortArrayExtra(String)
3691     */
3692    public Intent putExtra(String name, short[] value) {
3693        if (mExtras == null) {
3694            mExtras = new Bundle();
3695        }
3696        mExtras.putShortArray(name, value);
3697        return this;
3698    }
3699
3700    /**
3701     * Add extended data to the intent.  The name must include a package
3702     * prefix, for example the app com.android.contacts would use names
3703     * like "com.android.contacts.ShowAll".
3704     *
3705     * @param name The name of the extra data, with package prefix.
3706     * @param value The char array data value.
3707     *
3708     * @return Returns the same Intent object, for chaining multiple calls
3709     * into a single statement.
3710     *
3711     * @see #putExtras
3712     * @see #removeExtra
3713     * @see #getCharArrayExtra(String)
3714     */
3715    public Intent putExtra(String name, char[] value) {
3716        if (mExtras == null) {
3717            mExtras = new Bundle();
3718        }
3719        mExtras.putCharArray(name, value);
3720        return this;
3721    }
3722
3723    /**
3724     * Add extended data to the intent.  The name must include a package
3725     * prefix, for example the app com.android.contacts would use names
3726     * like "com.android.contacts.ShowAll".
3727     *
3728     * @param name The name of the extra data, with package prefix.
3729     * @param value The int array data value.
3730     *
3731     * @return Returns the same Intent object, for chaining multiple calls
3732     * into a single statement.
3733     *
3734     * @see #putExtras
3735     * @see #removeExtra
3736     * @see #getIntArrayExtra(String)
3737     */
3738    public Intent putExtra(String name, int[] value) {
3739        if (mExtras == null) {
3740            mExtras = new Bundle();
3741        }
3742        mExtras.putIntArray(name, value);
3743        return this;
3744    }
3745
3746    /**
3747     * Add extended data to the intent.  The name must include a package
3748     * prefix, for example the app com.android.contacts would use names
3749     * like "com.android.contacts.ShowAll".
3750     *
3751     * @param name The name of the extra data, with package prefix.
3752     * @param value The byte array data value.
3753     *
3754     * @return Returns the same Intent object, for chaining multiple calls
3755     * into a single statement.
3756     *
3757     * @see #putExtras
3758     * @see #removeExtra
3759     * @see #getLongArrayExtra(String)
3760     */
3761    public Intent putExtra(String name, long[] value) {
3762        if (mExtras == null) {
3763            mExtras = new Bundle();
3764        }
3765        mExtras.putLongArray(name, value);
3766        return this;
3767    }
3768
3769    /**
3770     * Add extended data to the intent.  The name must include a package
3771     * prefix, for example the app com.android.contacts would use names
3772     * like "com.android.contacts.ShowAll".
3773     *
3774     * @param name The name of the extra data, with package prefix.
3775     * @param value The float array data value.
3776     *
3777     * @return Returns the same Intent object, for chaining multiple calls
3778     * into a single statement.
3779     *
3780     * @see #putExtras
3781     * @see #removeExtra
3782     * @see #getFloatArrayExtra(String)
3783     */
3784    public Intent putExtra(String name, float[] value) {
3785        if (mExtras == null) {
3786            mExtras = new Bundle();
3787        }
3788        mExtras.putFloatArray(name, value);
3789        return this;
3790    }
3791
3792    /**
3793     * Add extended data to the intent.  The name must include a package
3794     * prefix, for example the app com.android.contacts would use names
3795     * like "com.android.contacts.ShowAll".
3796     *
3797     * @param name The name of the extra data, with package prefix.
3798     * @param value The double array data value.
3799     *
3800     * @return Returns the same Intent object, for chaining multiple calls
3801     * into a single statement.
3802     *
3803     * @see #putExtras
3804     * @see #removeExtra
3805     * @see #getDoubleArrayExtra(String)
3806     */
3807    public Intent putExtra(String name, double[] value) {
3808        if (mExtras == null) {
3809            mExtras = new Bundle();
3810        }
3811        mExtras.putDoubleArray(name, value);
3812        return this;
3813    }
3814
3815    /**
3816     * Add extended data to the intent.  The name must include a package
3817     * prefix, for example the app com.android.contacts would use names
3818     * like "com.android.contacts.ShowAll".
3819     *
3820     * @param name The name of the extra data, with package prefix.
3821     * @param value The String array data value.
3822     *
3823     * @return Returns the same Intent object, for chaining multiple calls
3824     * into a single statement.
3825     *
3826     * @see #putExtras
3827     * @see #removeExtra
3828     * @see #getStringArrayExtra(String)
3829     */
3830    public Intent putExtra(String name, String[] value) {
3831        if (mExtras == null) {
3832            mExtras = new Bundle();
3833        }
3834        mExtras.putStringArray(name, value);
3835        return this;
3836    }
3837
3838    /**
3839     * Add extended data to the intent.  The name must include a package
3840     * prefix, for example the app com.android.contacts would use names
3841     * like "com.android.contacts.ShowAll".
3842     *
3843     * @param name The name of the extra data, with package prefix.
3844     * @param value The Bundle data value.
3845     *
3846     * @return Returns the same Intent object, for chaining multiple calls
3847     * into a single statement.
3848     *
3849     * @see #putExtras
3850     * @see #removeExtra
3851     * @see #getBundleExtra(String)
3852     */
3853    public Intent putExtra(String name, Bundle value) {
3854        if (mExtras == null) {
3855            mExtras = new Bundle();
3856        }
3857        mExtras.putBundle(name, value);
3858        return this;
3859    }
3860
3861    /**
3862     * Add extended data to the intent.  The name must include a package
3863     * prefix, for example the app com.android.contacts would use names
3864     * like "com.android.contacts.ShowAll".
3865     *
3866     * @param name The name of the extra data, with package prefix.
3867     * @param value The IBinder data value.
3868     *
3869     * @return Returns the same Intent object, for chaining multiple calls
3870     * into a single statement.
3871     *
3872     * @see #putExtras
3873     * @see #removeExtra
3874     * @see #getIBinderExtra(String)
3875     *
3876     * @deprecated
3877     * @hide
3878     */
3879    @Deprecated
3880    public Intent putExtra(String name, IBinder value) {
3881        if (mExtras == null) {
3882            mExtras = new Bundle();
3883        }
3884        mExtras.putIBinder(name, value);
3885        return this;
3886    }
3887
3888    /**
3889     * Copy all extras in 'src' in to this intent.
3890     *
3891     * @param src Contains the extras to copy.
3892     *
3893     * @see #putExtra
3894     */
3895    public Intent putExtras(Intent src) {
3896        if (src.mExtras != null) {
3897            if (mExtras == null) {
3898                mExtras = new Bundle(src.mExtras);
3899            } else {
3900                mExtras.putAll(src.mExtras);
3901            }
3902        }
3903        return this;
3904    }
3905
3906    /**
3907     * Add a set of extended data to the intent.  The keys must include a package
3908     * prefix, for example the app com.android.contacts would use names
3909     * like "com.android.contacts.ShowAll".
3910     *
3911     * @param extras The Bundle of extras to add to this intent.
3912     *
3913     * @see #putExtra
3914     * @see #removeExtra
3915     */
3916    public Intent putExtras(Bundle extras) {
3917        if (mExtras == null) {
3918            mExtras = new Bundle();
3919        }
3920        mExtras.putAll(extras);
3921        return this;
3922    }
3923
3924    /**
3925     * Completely replace the extras in the Intent with the extras in the
3926     * given Intent.
3927     *
3928     * @param src The exact extras contained in this Intent are copied
3929     * into the target intent, replacing any that were previously there.
3930     */
3931    public Intent replaceExtras(Intent src) {
3932        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
3933        return this;
3934    }
3935
3936    /**
3937     * Completely replace the extras in the Intent with the given Bundle of
3938     * extras.
3939     *
3940     * @param extras The new set of extras in the Intent, or null to erase
3941     * all extras.
3942     */
3943    public Intent replaceExtras(Bundle extras) {
3944        mExtras = extras != null ? new Bundle(extras) : null;
3945        return this;
3946    }
3947
3948    /**
3949     * Remove extended data from the intent.
3950     *
3951     * @see #putExtra
3952     */
3953    public void removeExtra(String name) {
3954        if (mExtras != null) {
3955            mExtras.remove(name);
3956            if (mExtras.size() == 0) {
3957                mExtras = null;
3958            }
3959        }
3960    }
3961
3962    /**
3963     * Set special flags controlling how this intent is handled.  Most values
3964     * here depend on the type of component being executed by the Intent,
3965     * specifically the FLAG_ACTIVITY_* flags are all for use with
3966     * {@link Context#startActivity Context.startActivity()} and the
3967     * FLAG_RECEIVER_* flags are all for use with
3968     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
3969     *
3970     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
3971     * Activities and Tasks</a> documentation for important information on how some of these options impact
3972     * the behavior of your application.
3973     *
3974     * @param flags The desired flags.
3975     *
3976     * @return Returns the same Intent object, for chaining multiple calls
3977     * into a single statement.
3978     *
3979     * @see #getFlags
3980     * @see #addFlags
3981     *
3982     * @see #FLAG_GRANT_READ_URI_PERMISSION
3983     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
3984     * @see #FLAG_DEBUG_LOG_RESOLUTION
3985     * @see #FLAG_FROM_BACKGROUND
3986     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
3987     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
3988     * @see #FLAG_ACTIVITY_CLEAR_TOP
3989     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
3990     * @see #FLAG_ACTIVITY_FORWARD_RESULT
3991     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
3992     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
3993     * @see #FLAG_ACTIVITY_NEW_TASK
3994     * @see #FLAG_ACTIVITY_NO_HISTORY
3995     * @see #FLAG_ACTIVITY_NO_USER_ACTION
3996     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
3997     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
3998     * @see #FLAG_ACTIVITY_SINGLE_TOP
3999     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4000     */
4001    public Intent setFlags(int flags) {
4002        mFlags = flags;
4003        return this;
4004    }
4005
4006    /**
4007     * Add additional flags to the intent (or with existing flags
4008     * value).
4009     *
4010     * @param flags The new flags to set.
4011     *
4012     * @return Returns the same Intent object, for chaining multiple calls
4013     * into a single statement.
4014     *
4015     * @see #setFlags
4016     */
4017    public Intent addFlags(int flags) {
4018        mFlags |= flags;
4019        return this;
4020    }
4021
4022    /**
4023     * (Usually optional) Explicitly set the component to handle the intent.
4024     * If left with the default value of null, the system will determine the
4025     * appropriate class to use based on the other fields (action, data,
4026     * type, categories) in the Intent.  If this class is defined, the
4027     * specified class will always be used regardless of the other fields.  You
4028     * should only set this value when you know you absolutely want a specific
4029     * class to be used; otherwise it is better to let the system find the
4030     * appropriate class so that you will respect the installed applications
4031     * and user preferences.
4032     *
4033     * @param component The name of the application component to handle the
4034     * intent, or null to let the system find one for you.
4035     *
4036     * @return Returns the same Intent object, for chaining multiple calls
4037     * into a single statement.
4038     *
4039     * @see #setClass
4040     * @see #setClassName(Context, String)
4041     * @see #setClassName(String, String)
4042     * @see #getComponent
4043     * @see #resolveActivity
4044     */
4045    public Intent setComponent(ComponentName component) {
4046        mComponent = component;
4047        return this;
4048    }
4049
4050    /**
4051     * Convenience for calling {@link #setComponent} with an
4052     * explicit class name.
4053     *
4054     * @param packageContext A Context of the application package implementing
4055     * this class.
4056     * @param className The name of a class inside of the application package
4057     * that will be used as the component for this Intent.
4058     *
4059     * @return Returns the same Intent object, for chaining multiple calls
4060     * into a single statement.
4061     *
4062     * @see #setComponent
4063     * @see #setClass
4064     */
4065    public Intent setClassName(Context packageContext, String className) {
4066        mComponent = new ComponentName(packageContext, className);
4067        return this;
4068    }
4069
4070    /**
4071     * Convenience for calling {@link #setComponent} with an
4072     * explicit application package name and class name.
4073     *
4074     * @param packageName The name of the package implementing the desired
4075     * component.
4076     * @param className The name of a class inside of the application package
4077     * that will be used as the component for this Intent.
4078     *
4079     * @return Returns the same Intent object, for chaining multiple calls
4080     * into a single statement.
4081     *
4082     * @see #setComponent
4083     * @see #setClass
4084     */
4085    public Intent setClassName(String packageName, String className) {
4086        mComponent = new ComponentName(packageName, className);
4087        return this;
4088    }
4089
4090    /**
4091     * Convenience for calling {@link #setComponent(ComponentName)} with the
4092     * name returned by a {@link Class} object.
4093     *
4094     * @param packageContext A Context of the application package implementing
4095     * this class.
4096     * @param cls The class name to set, equivalent to
4097     *            <code>setClassName(context, cls.getName())</code>.
4098     *
4099     * @return Returns the same Intent object, for chaining multiple calls
4100     * into a single statement.
4101     *
4102     * @see #setComponent
4103     */
4104    public Intent setClass(Context packageContext, Class<?> cls) {
4105        mComponent = new ComponentName(packageContext, cls);
4106        return this;
4107    }
4108
4109    /**
4110     * Use with {@link #fillIn} to allow the current action value to be
4111     * overwritten, even if it is already set.
4112     */
4113    public static final int FILL_IN_ACTION = 1<<0;
4114
4115    /**
4116     * Use with {@link #fillIn} to allow the current data or type value
4117     * overwritten, even if it is already set.
4118     */
4119    public static final int FILL_IN_DATA = 1<<1;
4120
4121    /**
4122     * Use with {@link #fillIn} to allow the current categories to be
4123     * overwritten, even if they are already set.
4124     */
4125    public static final int FILL_IN_CATEGORIES = 1<<2;
4126
4127    /**
4128     * Use with {@link #fillIn} to allow the current component value to be
4129     * overwritten, even if it is already set.
4130     */
4131    public static final int FILL_IN_COMPONENT = 1<<3;
4132
4133    /**
4134     * Copy the contents of <var>other</var> in to this object, but only
4135     * where fields are not defined by this object.  For purposes of a field
4136     * being defined, the following pieces of data in the Intent are
4137     * considered to be separate fields:
4138     *
4139     * <ul>
4140     * <li> action, as set by {@link #setAction}.
4141     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4142     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4143     * <li> categories, as set by {@link #addCategory}.
4144     * <li> component, as set by {@link #setComponent(ComponentName)} or
4145     * related methods.
4146     * <li> each top-level name in the associated extras.
4147     * </ul>
4148     *
4149     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4150     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, and
4151     * {@link #FILL_IN_COMPONENT} to override the restriction where the
4152     * corresponding field will not be replaced if it is already set.
4153     *
4154     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4155     * and Intent B with {action="gotit", data-type="some/thing",
4156     * categories="one","two"}.
4157     *
4158     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4159     * containing: {action="gotit", data-type="some/thing",
4160     * categories="bar"}.
4161     *
4162     * @param other Another Intent whose values are to be used to fill in
4163     * the current one.
4164     * @param flags Options to control which fields can be filled in.
4165     *
4166     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4167     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, and
4168     * {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4169     */
4170    public int fillIn(Intent other, int flags) {
4171        int changes = 0;
4172        if ((mAction == null && other.mAction == null)
4173                || (flags&FILL_IN_ACTION) != 0) {
4174            mAction = other.mAction;
4175            changes |= FILL_IN_ACTION;
4176        }
4177        if ((mData == null && mType == null &&
4178                (other.mData != null || other.mType != null))
4179                || (flags&FILL_IN_DATA) != 0) {
4180            mData = other.mData;
4181            mType = other.mType;
4182            changes |= FILL_IN_DATA;
4183        }
4184        if ((mCategories == null && other.mCategories == null)
4185                || (flags&FILL_IN_CATEGORIES) != 0) {
4186            if (other.mCategories != null) {
4187                mCategories = new HashSet<String>(other.mCategories);
4188            }
4189            changes |= FILL_IN_CATEGORIES;
4190        }
4191        if ((mComponent == null && other.mComponent == null)
4192                || (flags&FILL_IN_COMPONENT) != 0) {
4193            mComponent = other.mComponent;
4194            changes |= FILL_IN_COMPONENT;
4195        }
4196        mFlags |= other.mFlags;
4197        if (mExtras == null) {
4198            if (other.mExtras != null) {
4199                mExtras = new Bundle(other.mExtras);
4200            }
4201        } else if (other.mExtras != null) {
4202            try {
4203                Bundle newb = new Bundle(other.mExtras);
4204                newb.putAll(mExtras);
4205                mExtras = newb;
4206            } catch (RuntimeException e) {
4207                // Modifying the extras can cause us to unparcel the contents
4208                // of the bundle, and if we do this in the system process that
4209                // may fail.  We really should handle this (i.e., the Bundle
4210                // impl shouldn't be on top of a plain map), but for now just
4211                // ignore it and keep the original contents. :(
4212                Log.w("Intent", "Failure filling in extras", e);
4213            }
4214        }
4215        return changes;
4216    }
4217
4218    /**
4219     * Wrapper class holding an Intent and implementing comparisons on it for
4220     * the purpose of filtering.  The class implements its
4221     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4222     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4223     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4224     * on the wrapped Intent.
4225     */
4226    public static final class FilterComparison {
4227        private final Intent mIntent;
4228        private final int mHashCode;
4229
4230        public FilterComparison(Intent intent) {
4231            mIntent = intent;
4232            mHashCode = intent.filterHashCode();
4233        }
4234
4235        /**
4236         * Return the Intent that this FilterComparison represents.
4237         * @return Returns the Intent held by the FilterComparison.  Do
4238         * not modify!
4239         */
4240        public Intent getIntent() {
4241            return mIntent;
4242        }
4243
4244        @Override
4245        public boolean equals(Object obj) {
4246            if (obj instanceof FilterComparison) {
4247                Intent other = ((FilterComparison)obj).mIntent;
4248                return mIntent.filterEquals(other);
4249            }
4250            return false;
4251        }
4252
4253        @Override
4254        public int hashCode() {
4255            return mHashCode;
4256        }
4257    }
4258
4259    /**
4260     * Determine if two intents are the same for the purposes of intent
4261     * resolution (filtering). That is, if their action, data, type,
4262     * class, and categories are the same.  This does <em>not</em> compare
4263     * any extra data included in the intents.
4264     *
4265     * @param other The other Intent to compare against.
4266     *
4267     * @return Returns true if action, data, type, class, and categories
4268     *         are the same.
4269     */
4270    public boolean filterEquals(Intent other) {
4271        if (other == null) {
4272            return false;
4273        }
4274        if (mAction != other.mAction) {
4275            if (mAction != null) {
4276                if (!mAction.equals(other.mAction)) {
4277                    return false;
4278                }
4279            } else {
4280                if (!other.mAction.equals(mAction)) {
4281                    return false;
4282                }
4283            }
4284        }
4285        if (mData != other.mData) {
4286            if (mData != null) {
4287                if (!mData.equals(other.mData)) {
4288                    return false;
4289                }
4290            } else {
4291                if (!other.mData.equals(mData)) {
4292                    return false;
4293                }
4294            }
4295        }
4296        if (mType != other.mType) {
4297            if (mType != null) {
4298                if (!mType.equals(other.mType)) {
4299                    return false;
4300                }
4301            } else {
4302                if (!other.mType.equals(mType)) {
4303                    return false;
4304                }
4305            }
4306        }
4307        if (mComponent != other.mComponent) {
4308            if (mComponent != null) {
4309                if (!mComponent.equals(other.mComponent)) {
4310                    return false;
4311                }
4312            } else {
4313                if (!other.mComponent.equals(mComponent)) {
4314                    return false;
4315                }
4316            }
4317        }
4318        if (mCategories != other.mCategories) {
4319            if (mCategories != null) {
4320                if (!mCategories.equals(other.mCategories)) {
4321                    return false;
4322                }
4323            } else {
4324                if (!other.mCategories.equals(mCategories)) {
4325                    return false;
4326                }
4327            }
4328        }
4329
4330        return true;
4331    }
4332
4333    /**
4334     * Generate hash code that matches semantics of filterEquals().
4335     *
4336     * @return Returns the hash value of the action, data, type, class, and
4337     *         categories.
4338     *
4339     * @see #filterEquals
4340     */
4341    public int filterHashCode() {
4342        int code = 0;
4343        if (mAction != null) {
4344            code += mAction.hashCode();
4345        }
4346        if (mData != null) {
4347            code += mData.hashCode();
4348        }
4349        if (mType != null) {
4350            code += mType.hashCode();
4351        }
4352        if (mComponent != null) {
4353            code += mComponent.hashCode();
4354        }
4355        if (mCategories != null) {
4356            code += mCategories.hashCode();
4357        }
4358        return code;
4359    }
4360
4361    @Override
4362    public String toString() {
4363        StringBuilder   b = new StringBuilder();
4364
4365        b.append("Intent {");
4366        if (mAction != null) b.append(" action=").append(mAction);
4367        if (mCategories != null) {
4368            b.append(" categories={");
4369            Iterator<String> i = mCategories.iterator();
4370            boolean didone = false;
4371            while (i.hasNext()) {
4372                if (didone) b.append(",");
4373                didone = true;
4374                b.append(i.next());
4375            }
4376            b.append("}");
4377        }
4378        if (mData != null) b.append(" data=").append(mData);
4379        if (mType != null) b.append(" type=").append(mType);
4380        if (mFlags != 0) b.append(" flags=0x").append(Integer.toHexString(mFlags));
4381        if (mComponent != null) b.append(" comp=").append(mComponent.toShortString());
4382        if (mExtras != null) b.append(" (has extras)");
4383        b.append(" }");
4384
4385        return b.toString();
4386    }
4387
4388    public String toURI() {
4389        StringBuilder uri = new StringBuilder(mData != null ? mData.toString() : "");
4390
4391        uri.append("#Intent;");
4392
4393        if (mAction != null) {
4394            uri.append("action=").append(mAction).append(';');
4395        }
4396        if (mCategories != null) {
4397            for (String category : mCategories) {
4398                uri.append("category=").append(category).append(';');
4399            }
4400        }
4401        if (mType != null) {
4402            uri.append("type=").append(mType).append(';');
4403        }
4404        if (mFlags != 0) {
4405            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
4406        }
4407        if (mComponent != null) {
4408            uri.append("component=").append(mComponent.flattenToShortString()).append(';');
4409        }
4410        if (mExtras != null) {
4411            for (String key : mExtras.keySet()) {
4412                final Object value = mExtras.get(key);
4413                char entryType =
4414                        value instanceof String    ? 'S' :
4415                        value instanceof Boolean   ? 'B' :
4416                        value instanceof Byte      ? 'b' :
4417                        value instanceof Character ? 'c' :
4418                        value instanceof Double    ? 'd' :
4419                        value instanceof Float     ? 'f' :
4420                        value instanceof Integer   ? 'i' :
4421                        value instanceof Long      ? 'l' :
4422                        value instanceof Short     ? 's' :
4423                        '\0';
4424
4425                if (entryType != '\0') {
4426                    uri.append(entryType);
4427                    uri.append('.');
4428                    uri.append(Uri.encode(key));
4429                    uri.append('=');
4430                    uri.append(Uri.encode(value.toString()));
4431                    uri.append(';');
4432                }
4433            }
4434        }
4435
4436        uri.append("end");
4437
4438        return uri.toString();
4439    }
4440
4441    public int describeContents() {
4442        return (mExtras != null) ? mExtras.describeContents() : 0;
4443    }
4444
4445    public void writeToParcel(Parcel out, int flags) {
4446        out.writeString(mAction);
4447        Uri.writeToParcel(out, mData);
4448        out.writeString(mType);
4449        out.writeInt(mFlags);
4450        ComponentName.writeToParcel(mComponent, out);
4451
4452        if (mCategories != null) {
4453            out.writeInt(mCategories.size());
4454            for (String category : mCategories) {
4455                out.writeString(category);
4456            }
4457        } else {
4458            out.writeInt(0);
4459        }
4460
4461        out.writeBundle(mExtras);
4462    }
4463
4464    public static final Parcelable.Creator<Intent> CREATOR
4465            = new Parcelable.Creator<Intent>() {
4466        public Intent createFromParcel(Parcel in) {
4467            return new Intent(in);
4468        }
4469        public Intent[] newArray(int size) {
4470            return new Intent[size];
4471        }
4472    };
4473
4474    private Intent(Parcel in) {
4475        readFromParcel(in);
4476    }
4477
4478    public void readFromParcel(Parcel in) {
4479        mAction = in.readString();
4480        mData = Uri.CREATOR.createFromParcel(in);
4481        mType = in.readString();
4482        mFlags = in.readInt();
4483        mComponent = ComponentName.readFromParcel(in);
4484
4485        int N = in.readInt();
4486        if (N > 0) {
4487            mCategories = new HashSet<String>();
4488            int i;
4489            for (i=0; i<N; i++) {
4490                mCategories.add(in.readString());
4491            }
4492        } else {
4493            mCategories = null;
4494        }
4495
4496        mExtras = in.readBundle();
4497    }
4498
4499    /**
4500     * Parses the "intent" element (and its children) from XML and instantiates
4501     * an Intent object.  The given XML parser should be located at the tag
4502     * where parsing should start (often named "intent"), from which the
4503     * basic action, data, type, and package and class name will be
4504     * retrieved.  The function will then parse in to any child elements,
4505     * looking for <category android:name="xxx"> tags to add categories and
4506     * <extra android:name="xxx" android:value="yyy"> to attach extra data
4507     * to the intent.
4508     *
4509     * @param resources The Resources to use when inflating resources.
4510     * @param parser The XML parser pointing at an "intent" tag.
4511     * @param attrs The AttributeSet interface for retrieving extended
4512     * attribute data at the current <var>parser</var> location.
4513     * @return An Intent object matching the XML data.
4514     * @throws XmlPullParserException If there was an XML parsing error.
4515     * @throws IOException If there was an I/O error.
4516     */
4517    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
4518            throws XmlPullParserException, IOException {
4519        Intent intent = new Intent();
4520
4521        TypedArray sa = resources.obtainAttributes(attrs,
4522                com.android.internal.R.styleable.Intent);
4523
4524        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
4525
4526        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
4527        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
4528        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
4529
4530        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
4531        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
4532        if (packageName != null && className != null) {
4533            intent.setComponent(new ComponentName(packageName, className));
4534        }
4535
4536        sa.recycle();
4537
4538        int outerDepth = parser.getDepth();
4539        int type;
4540        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
4541               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
4542            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
4543                continue;
4544            }
4545
4546            String nodeName = parser.getName();
4547            if (nodeName.equals("category")) {
4548                sa = resources.obtainAttributes(attrs,
4549                        com.android.internal.R.styleable.IntentCategory);
4550                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
4551                sa.recycle();
4552
4553                if (cat != null) {
4554                    intent.addCategory(cat);
4555                }
4556                XmlUtils.skipCurrentTag(parser);
4557
4558            } else if (nodeName.equals("extra")) {
4559                if (intent.mExtras == null) {
4560                    intent.mExtras = new Bundle();
4561                }
4562                resources.parseBundleExtra("extra", attrs, intent.mExtras);
4563                XmlUtils.skipCurrentTag(parser);
4564
4565            } else {
4566                XmlUtils.skipCurrentTag(parser);
4567            }
4568        }
4569
4570        return intent;
4571    }
4572}
4573