Intent.java revision d59fb6e7435b57d83662b196f5430e6f2bc5427b
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.content;
18
19import org.xmlpull.v1.XmlPullParser;
20import org.xmlpull.v1.XmlPullParserException;
21
22import android.annotation.SdkConstant;
23import android.annotation.SdkConstant.SdkConstantType;
24import android.content.pm.ActivityInfo;
25import android.content.pm.PackageManager;
26import android.content.pm.ResolveInfo;
27import android.content.res.Resources;
28import android.content.res.TypedArray;
29import android.graphics.Rect;
30import android.net.Uri;
31import android.os.Bundle;
32import android.os.IBinder;
33import android.os.Parcel;
34import android.os.Parcelable;
35import android.util.AttributeSet;
36import android.util.Log;
37import com.android.internal.util.XmlUtils;
38
39import java.io.IOException;
40import java.io.Serializable;
41import java.net.URISyntaxException;
42import java.util.ArrayList;
43import java.util.HashSet;
44import java.util.Iterator;
45import java.util.Set;
46
47/**
48 * An intent is an abstract description of an operation to be performed.  It
49 * can be used with {@link Context#startActivity(Intent) startActivity} to
50 * launch an {@link android.app.Activity},
51 * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
52 * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
53 * and {@link android.content.Context#startService} or
54 * {@link android.content.Context#bindService} to communicate with a
55 * background {@link android.app.Service}.
56 *
57 * <p>An Intent provides a facility for performing late runtime binding between
58 * the code in different applications.  Its most significant use is in the
59 * launching of activities, where it can be thought of as the glue between
60 * activities. It is
61 * basically a passive data structure holding an abstract description of an
62 * action to be performed. The primary pieces of information in an intent
63 * are:</p>
64 *
65 * <ul>
66 *   <li> <p><b>action</b> -- The general action to be performed, such as
67 *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
68 *     etc.</p>
69 *   </li>
70 *   <li> <p><b>data</b> -- The data to operate on, such as a person record
71 *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
72 *   </li>
73 * </ul>
74 *
75 *
76 * <p>Some examples of action/data pairs are:</p>
77 *
78 * <ul>
79 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
80 *     information about the person whose identifier is "1".</p>
81 *   </li>
82 *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
83 *     the phone dialer with the person filled in.</p>
84 *   </li>
85 *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
86 *     the phone dialer with the given number filled in.  Note how the
87 *     VIEW action does what what is considered the most reasonable thing for
88 *     a particular URI.</p>
89 *   </li>
90 *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
91 *     the phone dialer with the given number filled in.</p>
92 *   </li>
93 *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
94 *     information about the person whose identifier is "1".</p>
95 *   </li>
96 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
97 *     a list of people, which the user can browse through.  This example is a
98 *     typical top-level entry into the Contacts application, showing you the
99 *     list of people. Selecting a particular person to view would result in a
100 *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
101 *     being used to start an activity to display that person.</p>
102 *   </li>
103 * </ul>
104 *
105 * <p>In addition to these primary attributes, there are a number of secondary
106 * attributes that you can also include with an intent:</p>
107 *
108 * <ul>
109 *     <li> <p><b>category</b> -- Gives additional information about the action
110 *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
111 *         appear in the Launcher as a top-level application, while
112 *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
113 *         of alternative actions the user can perform on a piece of data.</p>
114 *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
115 *         intent data.  Normally the type is inferred from the data itself.
116 *         By setting this attribute, you disable that evaluation and force
117 *         an explicit type.</p>
118 *     <li> <p><b>component</b> -- Specifies an explicit name of a component
119 *         class to use for the intent.  Normally this is determined by looking
120 *         at the other information in the intent (the action, data/type, and
121 *         categories) and matching that with a component that can handle it.
122 *         If this attribute is set then none of the evaluation is performed,
123 *         and this component is used exactly as is.  By specifying this attribute,
124 *         all of the other Intent attributes become optional.</p>
125 *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
126 *         This can be used to provide extended information to the component.
127 *         For example, if we have a action to send an e-mail message, we could
128 *         also include extra pieces of data here to supply a subject, body,
129 *         etc.</p>
130 * </ul>
131 *
132 * <p>Here are some examples of other operations you can specify as intents
133 * using these additional parameters:</p>
134 *
135 * <ul>
136 *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
137 *     Launch the home screen.</p>
138 *   </li>
139 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
140 *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
141 *     vnd.android.cursor.item/phone}</i></b>
142 *     -- Display the list of people's phone numbers, allowing the user to
143 *     browse through them and pick one and return it to the parent activity.</p>
144 *   </li>
145 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
146 *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
147 *     -- Display all pickers for data that can be opened with
148 *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
149 *     allowing the user to pick one of them and then some data inside of it
150 *     and returning the resulting URI to the caller.  This can be used,
151 *     for example, in an e-mail application to allow the user to pick some
152 *     data to include as an attachment.</p>
153 *   </li>
154 * </ul>
155 *
156 * <p>There are a variety of standard Intent action and category constants
157 * defined in the Intent class, but applications can also define their own.
158 * These strings use java style scoping, to ensure they are unique -- for
159 * example, the standard {@link #ACTION_VIEW} is called
160 * "android.intent.action.VIEW".</p>
161 *
162 * <p>Put together, the set of actions, data types, categories, and extra data
163 * defines a language for the system allowing for the expression of phrases
164 * such as "call john smith's cell".  As applications are added to the system,
165 * they can extend this language by adding new actions, types, and categories, or
166 * they can modify the behavior of existing phrases by supplying their own
167 * activities that handle them.</p>
168 *
169 * <a name="IntentResolution"></a>
170 * <h3>Intent Resolution</h3>
171 *
172 * <p>There are two primary forms of intents you will use.
173 *
174 * <ul>
175 *     <li> <p><b>Explicit Intents</b> have specified a component (via
176 *     {@link #setComponent} or {@link #setClass}), which provides the exact
177 *     class to be run.  Often these will not include any other information,
178 *     simply being a way for an application to launch various internal
179 *     activities it has as the user interacts with the application.
180 *
181 *     <li> <p><b>Implicit Intents</b> have not specified a component;
182 *     instead, they must include enough information for the system to
183 *     determine which of the available components is best to run for that
184 *     intent.
185 * </ul>
186 *
187 * <p>When using implicit intents, given such an arbitrary intent we need to
188 * know what to do with it. This is handled by the process of <em>Intent
189 * resolution</em>, which maps an Intent to an {@link android.app.Activity},
190 * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
191 * more activities/receivers) that can handle it.</p>
192 *
193 * <p>The intent resolution mechanism basically revolves around matching an
194 * Intent against all of the &lt;intent-filter&gt; descriptions in the
195 * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
196 * objects explicitly registered with {@link Context#registerReceiver}.)  More
197 * details on this can be found in the documentation on the {@link
198 * IntentFilter} class.</p>
199 *
200 * <p>There are three pieces of information in the Intent that are used for
201 * resolution: the action, type, and category.  Using this information, a query
202 * is done on the {@link PackageManager} for a component that can handle the
203 * intent. The appropriate component is determined based on the intent
204 * information supplied in the <code>AndroidManifest.xml</code> file as
205 * follows:</p>
206 *
207 * <ul>
208 *     <li> <p>The <b>action</b>, if given, must be listed by the component as
209 *         one it handles.</p>
210 *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
211 *         already supplied in the Intent.  Like the action, if a type is
212 *         included in the intent (either explicitly or implicitly in its
213 *         data), then this must be listed by the component as one it handles.</p>
214 *     <li> For data that is not a <code>content:</code> URI and where no explicit
215 *         type is included in the Intent, instead the <b>scheme</b> of the
216 *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
217 *         considered. Again like the action, if we are matching a scheme it
218 *         must be listed by the component as one it can handle.
219 *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
220 *         by the activity as categories it handles.  That is, if you include
221 *         the categories {@link #CATEGORY_LAUNCHER} and
222 *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
223 *         with an intent that lists <em>both</em> of those categories.
224 *         Activities will very often need to support the
225 *         {@link #CATEGORY_DEFAULT} so that they can be found by
226 *         {@link Context#startActivity Context.startActivity()}.</p>
227 * </ul>
228 *
229 * <p>For example, consider the Note Pad sample application that
230 * allows user to browse through a list of notes data and view details about
231 * individual items.  Text in italics indicate places were you would replace a
232 * name with one specific to your own package.</p>
233 *
234 * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
235 *       package="<i>com.android.notepad</i>"&gt;
236 *     &lt;application android:icon="@drawable/app_notes"
237 *             android:label="@string/app_name"&gt;
238 *
239 *         &lt;provider class=".NotePadProvider"
240 *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
241 *
242 *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
243 *             &lt;intent-filter&gt;
244 *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
245 *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
246 *             &lt;/intent-filter&gt;
247 *             &lt;intent-filter&gt;
248 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
249 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
250 *                 &lt;action android:name="android.intent.action.PICK" /&gt;
251 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
252 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
253 *             &lt;/intent-filter&gt;
254 *             &lt;intent-filter&gt;
255 *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
256 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
257 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
258 *             &lt;/intent-filter&gt;
259 *         &lt;/activity&gt;
260 *
261 *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
262 *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
263 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
264 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
265 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
266 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
267 *             &lt;/intent-filter&gt;
268 *
269 *             &lt;intent-filter&gt;
270 *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
271 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
272 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
273 *             &lt;/intent-filter&gt;
274 *
275 *         &lt;/activity&gt;
276 *
277 *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
278 *                 android:theme="@android:style/Theme.Dialog"&gt;
279 *             &lt;intent-filter android:label="@string/resolve_title"&gt;
280 *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
281 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
282 *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
283 *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
284 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
285 *             &lt;/intent-filter&gt;
286 *         &lt;/activity&gt;
287 *
288 *     &lt;/application&gt;
289 * &lt;/manifest&gt;</pre>
290 *
291 * <p>The first activity,
292 * <code>com.android.notepad.NotesList</code>, serves as our main
293 * entry into the app.  It can do three things as described by its three intent
294 * templates:
295 * <ol>
296 * <li><pre>
297 * &lt;intent-filter&gt;
298 *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
299 *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
300 * &lt;/intent-filter&gt;</pre>
301 * <p>This provides a top-level entry into the NotePad application: the standard
302 * MAIN action is a main entry point (not requiring any other information in
303 * the Intent), and the LAUNCHER category says that this entry point should be
304 * listed in the application launcher.</p>
305 * <li><pre>
306 * &lt;intent-filter&gt;
307 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
308 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
309 *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
310 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
311 *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
312 * &lt;/intent-filter&gt;</pre>
313 * <p>This declares the things that the activity can do on a directory of
314 * notes.  The type being supported is given with the &lt;type&gt; tag, where
315 * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
316 * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
317 * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
318 * The activity allows the user to view or edit the directory of data (via
319 * the VIEW and EDIT actions), or to pick a particular note and return it
320 * to the caller (via the PICK action).  Note also the DEFAULT category
321 * supplied here: this is <em>required</em> for the
322 * {@link Context#startActivity Context.startActivity} method to resolve your
323 * activity when its component name is not explicitly specified.</p>
324 * <li><pre>
325 * &lt;intent-filter&gt;
326 *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
327 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
328 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
329 * &lt;/intent-filter&gt;</pre>
330 * <p>This filter describes the ability return to the caller a note selected by
331 * the user without needing to know where it came from.  The data type
332 * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
333 * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
334 * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
335 * The GET_CONTENT action is similar to the PICK action, where the activity
336 * will return to its caller a piece of data selected by the user.  Here,
337 * however, the caller specifies the type of data they desire instead of
338 * the type of data the user will be picking from.</p>
339 * </ol>
340 *
341 * <p>Given these capabilities, the following intents will resolve to the
342 * NotesList activity:</p>
343 *
344 * <ul>
345 *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
346 *         activities that can be used as top-level entry points into an
347 *         application.</p>
348 *     <li> <p><b>{ action=android.app.action.MAIN,
349 *         category=android.app.category.LAUNCHER }</b> is the actual intent
350 *         used by the Launcher to populate its top-level list.</p>
351 *     <li> <p><b>{ action=android.intent.action.VIEW
352 *          data=content://com.google.provider.NotePad/notes }</b>
353 *         displays a list of all the notes under
354 *         "content://com.google.provider.NotePad/notes", which
355 *         the user can browse through and see the details on.</p>
356 *     <li> <p><b>{ action=android.app.action.PICK
357 *          data=content://com.google.provider.NotePad/notes }</b>
358 *         provides a list of the notes under
359 *         "content://com.google.provider.NotePad/notes", from which
360 *         the user can pick a note whose data URL is returned back to the caller.</p>
361 *     <li> <p><b>{ action=android.app.action.GET_CONTENT
362 *          type=vnd.android.cursor.item/vnd.google.note }</b>
363 *         is similar to the pick action, but allows the caller to specify the
364 *         kind of data they want back so that the system can find the appropriate
365 *         activity to pick something of that data type.</p>
366 * </ul>
367 *
368 * <p>The second activity,
369 * <code>com.android.notepad.NoteEditor</code>, shows the user a single
370 * note entry and allows them to edit it.  It can do two things as described
371 * by its two intent templates:
372 * <ol>
373 * <li><pre>
374 * &lt;intent-filter android:label="@string/resolve_edit"&gt;
375 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
376 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
377 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
378 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
379 * &lt;/intent-filter&gt;</pre>
380 * <p>The first, primary, purpose of this activity is to let the user interact
381 * with a single note, as decribed by the MIME type
382 * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
383 * either VIEW a note or allow the user to EDIT it.  Again we support the
384 * DEFAULT category to allow the activity to be launched without explicitly
385 * specifying its component.</p>
386 * <li><pre>
387 * &lt;intent-filter&gt;
388 *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
389 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
390 *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
391 * &lt;/intent-filter&gt;</pre>
392 * <p>The secondary use of this activity is to insert a new note entry into
393 * an existing directory of notes.  This is used when the user creates a new
394 * note: the INSERT action is executed on the directory of notes, causing
395 * this activity to run and have the user create the new note data which
396 * it then adds to the content provider.</p>
397 * </ol>
398 *
399 * <p>Given these capabilities, the following intents will resolve to the
400 * NoteEditor activity:</p>
401 *
402 * <ul>
403 *     <li> <p><b>{ action=android.intent.action.VIEW
404 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
405 *         shows the user the content of note <var>{ID}</var>.</p>
406 *     <li> <p><b>{ action=android.app.action.EDIT
407 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
408 *         allows the user to edit the content of note <var>{ID}</var>.</p>
409 *     <li> <p><b>{ action=android.app.action.INSERT
410 *          data=content://com.google.provider.NotePad/notes }</b>
411 *         creates a new, empty note in the notes list at
412 *         "content://com.google.provider.NotePad/notes"
413 *         and allows the user to edit it.  If they keep their changes, the URI
414 *         of the newly created note is returned to the caller.</p>
415 * </ul>
416 *
417 * <p>The last activity,
418 * <code>com.android.notepad.TitleEditor</code>, allows the user to
419 * edit the title of a note.  This could be implemented as a class that the
420 * application directly invokes (by explicitly setting its component in
421 * the Intent), but here we show a way you can publish alternative
422 * operations on existing data:</p>
423 *
424 * <pre>
425 * &lt;intent-filter android:label="@string/resolve_title"&gt;
426 *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
427 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
428 *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
429 *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
430 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
431 * &lt;/intent-filter&gt;</pre>
432 *
433 * <p>In the single intent template here, we
434 * have created our own private action called
435 * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
436 * edit the title of a note.  It must be invoked on a specific note
437 * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
438 * view and edit actions, but here displays and edits the title contained
439 * in the note data.
440 *
441 * <p>In addition to supporting the default category as usual, our title editor
442 * also supports two other standard categories: ALTERNATIVE and
443 * SELECTED_ALTERNATIVE.  Implementing
444 * these categories allows others to find the special action it provides
445 * without directly knowing about it, through the
446 * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
447 * more often to build dynamic menu items with
448 * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
449 * template here was also supply an explicit name for the template
450 * (via <code>android:label="@string/resolve_title"</code>) to better control
451 * what the user sees when presented with this activity as an alternative
452 * action to the data they are viewing.
453 *
454 * <p>Given these capabilities, the following intent will resolve to the
455 * TitleEditor activity:</p>
456 *
457 * <ul>
458 *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
459 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
460 *         displays and allows the user to edit the title associated
461 *         with note <var>{ID}</var>.</p>
462 * </ul>
463 *
464 * <h3>Standard Activity Actions</h3>
465 *
466 * <p>These are the current standard actions that Intent defines for launching
467 * activities (usually through {@link Context#startActivity}.  The most
468 * important, and by far most frequently used, are {@link #ACTION_MAIN} and
469 * {@link #ACTION_EDIT}.
470 *
471 * <ul>
472 *     <li> {@link #ACTION_MAIN}
473 *     <li> {@link #ACTION_VIEW}
474 *     <li> {@link #ACTION_ATTACH_DATA}
475 *     <li> {@link #ACTION_EDIT}
476 *     <li> {@link #ACTION_PICK}
477 *     <li> {@link #ACTION_CHOOSER}
478 *     <li> {@link #ACTION_GET_CONTENT}
479 *     <li> {@link #ACTION_DIAL}
480 *     <li> {@link #ACTION_CALL}
481 *     <li> {@link #ACTION_SEND}
482 *     <li> {@link #ACTION_SENDTO}
483 *     <li> {@link #ACTION_ANSWER}
484 *     <li> {@link #ACTION_INSERT}
485 *     <li> {@link #ACTION_DELETE}
486 *     <li> {@link #ACTION_RUN}
487 *     <li> {@link #ACTION_SYNC}
488 *     <li> {@link #ACTION_PICK_ACTIVITY}
489 *     <li> {@link #ACTION_SEARCH}
490 *     <li> {@link #ACTION_WEB_SEARCH}
491 *     <li> {@link #ACTION_FACTORY_TEST}
492 * </ul>
493 *
494 * <h3>Standard Broadcast Actions</h3>
495 *
496 * <p>These are the current standard actions that Intent defines for receiving
497 * broadcasts (usually through {@link Context#registerReceiver} or a
498 * &lt;receiver&gt; tag in a manifest).
499 *
500 * <ul>
501 *     <li> {@link #ACTION_TIME_TICK}
502 *     <li> {@link #ACTION_TIME_CHANGED}
503 *     <li> {@link #ACTION_TIMEZONE_CHANGED}
504 *     <li> {@link #ACTION_BOOT_COMPLETED}
505 *     <li> {@link #ACTION_PACKAGE_ADDED}
506 *     <li> {@link #ACTION_PACKAGE_CHANGED}
507 *     <li> {@link #ACTION_PACKAGE_REMOVED}
508 *     <li> {@link #ACTION_PACKAGE_RESTARTED}
509 *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
510 *     <li> {@link #ACTION_UID_REMOVED}
511 *     <li> {@link #ACTION_BATTERY_CHANGED}
512 *     <li> {@link #ACTION_POWER_CONNECTED}
513 *     <li> {@link #ACTION_POWER_DISCONNECTED}
514 *     <li> {@link #ACTION_SHUTDOWN}
515 * </ul>
516 *
517 * <h3>Standard Categories</h3>
518 *
519 * <p>These are the current standard categories that can be used to further
520 * clarify an Intent via {@link #addCategory}.
521 *
522 * <ul>
523 *     <li> {@link #CATEGORY_DEFAULT}
524 *     <li> {@link #CATEGORY_BROWSABLE}
525 *     <li> {@link #CATEGORY_TAB}
526 *     <li> {@link #CATEGORY_ALTERNATIVE}
527 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
528 *     <li> {@link #CATEGORY_LAUNCHER}
529 *     <li> {@link #CATEGORY_INFO}
530 *     <li> {@link #CATEGORY_HOME}
531 *     <li> {@link #CATEGORY_PREFERENCE}
532 *     <li> {@link #CATEGORY_TEST}
533 *     <li> {@link #CATEGORY_CAR_DOCK}
534 *     <li> {@link #CATEGORY_DESK_DOCK}
535 * </ul>
536 *
537 * <h3>Standard Extra Data</h3>
538 *
539 * <p>These are the current standard fields that can be used as extra data via
540 * {@link #putExtra}.
541 *
542 * <ul>
543 *     <li> {@link #EXTRA_ALARM_COUNT}
544 *     <li> {@link #EXTRA_BCC}
545 *     <li> {@link #EXTRA_CC}
546 *     <li> {@link #EXTRA_CHANGED_COMPONENT_NAME}
547 *     <li> {@link #EXTRA_DATA_REMOVED}
548 *     <li> {@link #EXTRA_DOCK_STATE}
549 *     <li> {@link #EXTRA_DOCK_STATE_CAR}
550 *     <li> {@link #EXTRA_DOCK_STATE_DESK}
551 *     <li> {@link #EXTRA_DOCK_STATE_UNDOCKED}
552 *     <li> {@link #EXTRA_DONT_KILL_APP}
553 *     <li> {@link #EXTRA_EMAIL}
554 *     <li> {@link #EXTRA_INITIAL_INTENTS}
555 *     <li> {@link #EXTRA_INTENT}
556 *     <li> {@link #EXTRA_KEY_EVENT}
557 *     <li> {@link #EXTRA_PHONE_NUMBER}
558 *     <li> {@link #EXTRA_REMOTE_INTENT_TOKEN}
559 *     <li> {@link #EXTRA_REPLACING}
560 *     <li> {@link #EXTRA_SHORTCUT_ICON}
561 *     <li> {@link #EXTRA_SHORTCUT_ICON_RESOURCE}
562 *     <li> {@link #EXTRA_SHORTCUT_INTENT}
563 *     <li> {@link #EXTRA_STREAM}
564 *     <li> {@link #EXTRA_SHORTCUT_NAME}
565 *     <li> {@link #EXTRA_SUBJECT}
566 *     <li> {@link #EXTRA_TEMPLATE}
567 *     <li> {@link #EXTRA_TEXT}
568 *     <li> {@link #EXTRA_TITLE}
569 *     <li> {@link #EXTRA_UID}
570 * </ul>
571 *
572 * <h3>Flags</h3>
573 *
574 * <p>These are the possible flags that can be used in the Intent via
575 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
576 * of all possible flags.
577 */
578public class Intent implements Parcelable {
579    // ---------------------------------------------------------------------
580    // ---------------------------------------------------------------------
581    // Standard intent activity actions (see action variable).
582
583    /**
584     *  Activity Action: Start as a main entry point, does not expect to
585     *  receive data.
586     *  <p>Input: nothing
587     *  <p>Output: nothing
588     */
589    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
590    public static final String ACTION_MAIN = "android.intent.action.MAIN";
591
592    /**
593     * Activity Action: Display the data to the user.  This is the most common
594     * action performed on data -- it is the generic action you can use on
595     * a piece of data to get the most reasonable thing to occur.  For example,
596     * when used on a contacts entry it will view the entry; when used on a
597     * mailto: URI it will bring up a compose window filled with the information
598     * supplied by the URI; when used with a tel: URI it will invoke the
599     * dialer.
600     * <p>Input: {@link #getData} is URI from which to retrieve data.
601     * <p>Output: nothing.
602     */
603    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
604    public static final String ACTION_VIEW = "android.intent.action.VIEW";
605
606    /**
607     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
608     * performed on a piece of data.
609     */
610    public static final String ACTION_DEFAULT = ACTION_VIEW;
611
612    /**
613     * Used to indicate that some piece of data should be attached to some other
614     * place.  For example, image data could be attached to a contact.  It is up
615     * to the recipient to decide where the data should be attached; the intent
616     * does not specify the ultimate destination.
617     * <p>Input: {@link #getData} is URI of data to be attached.
618     * <p>Output: nothing.
619     */
620    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
621    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
622
623    /**
624     * Activity Action: Provide explicit editable access to the given data.
625     * <p>Input: {@link #getData} is URI of data to be edited.
626     * <p>Output: nothing.
627     */
628    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
629    public static final String ACTION_EDIT = "android.intent.action.EDIT";
630
631    /**
632     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
633     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
634     * The extras can contain type specific data to pass through to the editing/creating
635     * activity.
636     * <p>Output: The URI of the item that was picked.  This must be a content:
637     * URI so that any receiver can access it.
638     */
639    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
640    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
641
642    /**
643     * Activity Action: Pick an item from the data, returning what was selected.
644     * <p>Input: {@link #getData} is URI containing a directory of data
645     * (vnd.android.cursor.dir/*) from which to pick an item.
646     * <p>Output: The URI of the item that was picked.
647     */
648    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
649    public static final String ACTION_PICK = "android.intent.action.PICK";
650
651    /**
652     * Activity Action: Creates a shortcut.
653     * <p>Input: Nothing.</p>
654     * <p>Output: An Intent representing the shortcut. The intent must contain three
655     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
656     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
657     * (value: ShortcutIconResource).</p>
658     *
659     * @see #EXTRA_SHORTCUT_INTENT
660     * @see #EXTRA_SHORTCUT_NAME
661     * @see #EXTRA_SHORTCUT_ICON
662     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
663     * @see android.content.Intent.ShortcutIconResource
664     */
665    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
666    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
667
668    /**
669     * The name of the extra used to define the Intent of a shortcut.
670     *
671     * @see #ACTION_CREATE_SHORTCUT
672     */
673    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
674    /**
675     * The name of the extra used to define the name of a shortcut.
676     *
677     * @see #ACTION_CREATE_SHORTCUT
678     */
679    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
680    /**
681     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
682     *
683     * @see #ACTION_CREATE_SHORTCUT
684     */
685    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
686    /**
687     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
688     *
689     * @see #ACTION_CREATE_SHORTCUT
690     * @see android.content.Intent.ShortcutIconResource
691     */
692    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
693            "android.intent.extra.shortcut.ICON_RESOURCE";
694
695    /**
696     * Represents a shortcut/live folder icon resource.
697     *
698     * @see Intent#ACTION_CREATE_SHORTCUT
699     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
700     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
701     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
702     */
703    public static class ShortcutIconResource implements Parcelable {
704        /**
705         * The package name of the application containing the icon.
706         */
707        public String packageName;
708
709        /**
710         * The resource name of the icon, including package, name and type.
711         */
712        public String resourceName;
713
714        /**
715         * Creates a new ShortcutIconResource for the specified context and resource
716         * identifier.
717         *
718         * @param context The context of the application.
719         * @param resourceId The resource idenfitier for the icon.
720         * @return A new ShortcutIconResource with the specified's context package name
721         *         and icon resource idenfitier.
722         */
723        public static ShortcutIconResource fromContext(Context context, int resourceId) {
724            ShortcutIconResource icon = new ShortcutIconResource();
725            icon.packageName = context.getPackageName();
726            icon.resourceName = context.getResources().getResourceName(resourceId);
727            return icon;
728        }
729
730        /**
731         * Used to read a ShortcutIconResource from a Parcel.
732         */
733        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
734            new Parcelable.Creator<ShortcutIconResource>() {
735
736                public ShortcutIconResource createFromParcel(Parcel source) {
737                    ShortcutIconResource icon = new ShortcutIconResource();
738                    icon.packageName = source.readString();
739                    icon.resourceName = source.readString();
740                    return icon;
741                }
742
743                public ShortcutIconResource[] newArray(int size) {
744                    return new ShortcutIconResource[size];
745                }
746            };
747
748        /**
749         * No special parcel contents.
750         */
751        public int describeContents() {
752            return 0;
753        }
754
755        public void writeToParcel(Parcel dest, int flags) {
756            dest.writeString(packageName);
757            dest.writeString(resourceName);
758        }
759
760        @Override
761        public String toString() {
762            return resourceName;
763        }
764    }
765
766    /**
767     * Activity Action: Display an activity chooser, allowing the user to pick
768     * what they want to before proceeding.  This can be used as an alternative
769     * to the standard activity picker that is displayed by the system when
770     * you try to start an activity with multiple possible matches, with these
771     * differences in behavior:
772     * <ul>
773     * <li>You can specify the title that will appear in the activity chooser.
774     * <li>The user does not have the option to make one of the matching
775     * activities a preferred activity, and all possible activities will
776     * always be shown even if one of them is currently marked as the
777     * preferred activity.
778     * </ul>
779     * <p>
780     * This action should be used when the user will naturally expect to
781     * select an activity in order to proceed.  An example if when not to use
782     * it is when the user clicks on a "mailto:" link.  They would naturally
783     * expect to go directly to their mail app, so startActivity() should be
784     * called directly: it will
785     * either launch the current preferred app, or put up a dialog allowing the
786     * user to pick an app to use and optionally marking that as preferred.
787     * <p>
788     * In contrast, if the user is selecting a menu item to send a picture
789     * they are viewing to someone else, there are many different things they
790     * may want to do at this point: send it through e-mail, upload it to a
791     * web service, etc.  In this case the CHOOSER action should be used, to
792     * always present to the user a list of the things they can do, with a
793     * nice title given by the caller such as "Send this photo with:".
794     * <p>
795     * As a convenience, an Intent of this form can be created with the
796     * {@link #createChooser} function.
797     * <p>Input: No data should be specified.  get*Extra must have
798     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
799     * and can optionally have a {@link #EXTRA_TITLE} field containing the
800     * title text to display in the chooser.
801     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
802     */
803    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
804    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
805
806    /**
807     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
808     *
809     * @param target The Intent that the user will be selecting an activity
810     * to perform.
811     * @param title Optional title that will be displayed in the chooser.
812     * @return Return a new Intent object that you can hand to
813     * {@link Context#startActivity(Intent) Context.startActivity()} and
814     * related methods.
815     */
816    public static Intent createChooser(Intent target, CharSequence title) {
817        Intent intent = new Intent(ACTION_CHOOSER);
818        intent.putExtra(EXTRA_INTENT, target);
819        if (title != null) {
820            intent.putExtra(EXTRA_TITLE, title);
821        }
822        return intent;
823    }
824    /**
825     * Activity Action: Allow the user to select a particular kind of data and
826     * return it.  This is different than {@link #ACTION_PICK} in that here we
827     * just say what kind of data is desired, not a URI of existing data from
828     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
829     * create the data as it runs (for example taking a picture or recording a
830     * sound), let them browser over the web and download the desired data,
831     * etc.
832     * <p>
833     * There are two main ways to use this action: if you want an specific kind
834     * of data, such as a person contact, you set the MIME type to the kind of
835     * data you want and launch it with {@link Context#startActivity(Intent)}.
836     * The system will then launch the best application to select that kind
837     * of data for you.
838     * <p>
839     * You may also be interested in any of a set of types of content the user
840     * can pick.  For example, an e-mail application that wants to allow the
841     * user to add an attachment to an e-mail message can use this action to
842     * bring up a list of all of the types of content the user can attach.
843     * <p>
844     * In this case, you should wrap the GET_CONTENT intent with a chooser
845     * (through {@link #createChooser}), which will give the proper interface
846     * for the user to pick how to send your data and allow you to specify
847     * a prompt indicating what they are doing.  You will usually specify a
848     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
849     * broad range of content types the user can select from.
850     * <p>
851     * When using such a broad GET_CONTENT action, it is often desireable to
852     * only pick from data that can be represented as a stream.  This is
853     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
854     * <p>
855     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
856     * that no URI is supplied in the intent, as there are no constraints on
857     * where the returned data originally comes from.  You may also include the
858     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
859     * opened as a stream.
860     * <p>
861     * Output: The URI of the item that was picked.  This must be a content:
862     * URI so that any receiver can access it.
863     */
864    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
865    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
866    /**
867     * Activity Action: Dial a number as specified by the data.  This shows a
868     * UI with the number being dialed, allowing the user to explicitly
869     * initiate the call.
870     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
871     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
872     * number.
873     * <p>Output: nothing.
874     */
875    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
876    public static final String ACTION_DIAL = "android.intent.action.DIAL";
877    /**
878     * Activity Action: Perform a call to someone specified by the data.
879     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
880     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
881     * number.
882     * <p>Output: nothing.
883     *
884     * <p>Note: there will be restrictions on which applications can initiate a
885     * call; most applications should use the {@link #ACTION_DIAL}.
886     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
887     * numbers.  Applications can <strong>dial</strong> emergency numbers using
888     * {@link #ACTION_DIAL}, however.
889     */
890    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
891    public static final String ACTION_CALL = "android.intent.action.CALL";
892    /**
893     * Activity Action: Perform a call to an emergency number specified by the
894     * data.
895     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
896     * tel: URI of an explicit phone number.
897     * <p>Output: nothing.
898     * @hide
899     */
900    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
901    /**
902     * Activity action: Perform a call to any number (emergency or not)
903     * specified by the data.
904     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
905     * tel: URI of an explicit phone number.
906     * <p>Output: nothing.
907     * @hide
908     */
909    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
910    /**
911     * Activity Action: Send a message to someone specified by the data.
912     * <p>Input: {@link #getData} is URI describing the target.
913     * <p>Output: nothing.
914     */
915    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
916    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
917    /**
918     * Activity Action: Deliver some data to someone else.  Who the data is
919     * being delivered to is not specified; it is up to the receiver of this
920     * action to ask the user where the data should be sent.
921     * <p>
922     * When launching a SEND intent, you should usually wrap it in a chooser
923     * (through {@link #createChooser}), which will give the proper interface
924     * for the user to pick how to send your data and allow you to specify
925     * a prompt indicating what they are doing.
926     * <p>
927     * Input: {@link #getType} is the MIME type of the data being sent.
928     * get*Extra can have either a {@link #EXTRA_TEXT}
929     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
930     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
931     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
932     * if the MIME type is unknown (this will only allow senders that can
933     * handle generic data streams).
934     * <p>
935     * Optional standard extras, which may be interpreted by some recipients as
936     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
937     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
938     * <p>
939     * Output: nothing.
940     */
941    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
942    public static final String ACTION_SEND = "android.intent.action.SEND";
943    /**
944     * Activity Action: Deliver multiple data to someone else.
945     * <p>
946     * Like ACTION_SEND, except the data is multiple.
947     * <p>
948     * Input: {@link #getType} is the MIME type of the data being sent.
949     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
950     * #EXTRA_STREAM} field, containing the data to be sent.
951     * <p>
952     * Multiple types are supported, and receivers should handle mixed types
953     * whenever possible. The right way for the receiver to check them is to
954     * use the content resolver on each URI. The intent sender should try to
955     * put the most concrete mime type in the intent type, but it can fall
956     * back to {@literal <type>/*} or {@literal *}/* as needed.
957     * <p>
958     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
959     * be image/jpg, but if you are sending image/jpg and image/png, then the
960     * intent's type should be image/*.
961     * <p>
962     * Optional standard extras, which may be interpreted by some recipients as
963     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
964     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
965     * <p>
966     * Output: nothing.
967     */
968    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
969    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
970    /**
971     * Activity Action: Handle an incoming phone call.
972     * <p>Input: nothing.
973     * <p>Output: nothing.
974     */
975    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
976    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
977    /**
978     * Activity Action: Insert an empty item into the given container.
979     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
980     * in which to place the data.
981     * <p>Output: URI of the new data that was created.
982     */
983    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
984    public static final String ACTION_INSERT = "android.intent.action.INSERT";
985    /**
986     * Activity Action: Delete the given data from its container.
987     * <p>Input: {@link #getData} is URI of data to be deleted.
988     * <p>Output: nothing.
989     */
990    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
991    public static final String ACTION_DELETE = "android.intent.action.DELETE";
992    /**
993     * Activity Action: Run the data, whatever that means.
994     * <p>Input: ?  (Note: this is currently specific to the test harness.)
995     * <p>Output: nothing.
996     */
997    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
998    public static final String ACTION_RUN = "android.intent.action.RUN";
999    /**
1000     * Activity Action: Perform a data synchronization.
1001     * <p>Input: ?
1002     * <p>Output: ?
1003     */
1004    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1005    public static final String ACTION_SYNC = "android.intent.action.SYNC";
1006    /**
1007     * Activity Action: Pick an activity given an intent, returning the class
1008     * selected.
1009     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
1010     * used with {@link PackageManager#queryIntentActivities} to determine the
1011     * set of activities from which to pick.
1012     * <p>Output: Class name of the activity that was selected.
1013     */
1014    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1015    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
1016    /**
1017     * Activity Action: Perform a search.
1018     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1019     * is the text to search for.  If empty, simply
1020     * enter your search results Activity with the search UI activated.
1021     * <p>Output: nothing.
1022     */
1023    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1024    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1025    /**
1026     * Activity Action: Start the platform-defined tutorial
1027     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1028     * is the text to search for.  If empty, simply
1029     * enter your search results Activity with the search UI activated.
1030     * <p>Output: nothing.
1031     */
1032    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1033    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1034    /**
1035     * Activity Action: Perform a web search.
1036     * <p>
1037     * Input: {@link android.app.SearchManager#QUERY
1038     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1039     * a url starts with http or https, the site will be opened. If it is plain
1040     * text, Google search will be applied.
1041     * <p>
1042     * Output: nothing.
1043     */
1044    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1045    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1046    /**
1047     * Activity Action: List all available applications
1048     * <p>Input: Nothing.
1049     * <p>Output: nothing.
1050     */
1051    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1052    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1053    /**
1054     * Activity Action: Show settings for choosing wallpaper
1055     * <p>Input: Nothing.
1056     * <p>Output: Nothing.
1057     */
1058    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1059    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1060
1061    /**
1062     * Activity Action: Show activity for reporting a bug.
1063     * <p>Input: Nothing.
1064     * <p>Output: Nothing.
1065     */
1066    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1067    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1068
1069    /**
1070     *  Activity Action: Main entry point for factory tests.  Only used when
1071     *  the device is booting in factory test node.  The implementing package
1072     *  must be installed in the system image.
1073     *  <p>Input: nothing
1074     *  <p>Output: nothing
1075     */
1076    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1077
1078    /**
1079     * Activity Action: The user pressed the "call" button to go to the dialer
1080     * or other appropriate UI for placing a call.
1081     * <p>Input: Nothing.
1082     * <p>Output: Nothing.
1083     */
1084    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1085    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1086
1087    /**
1088     * Activity Action: Start Voice Command.
1089     * <p>Input: Nothing.
1090     * <p>Output: Nothing.
1091     */
1092    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1093    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1094
1095    /**
1096     * Activity Action: Start action associated with long pressing on the
1097     * search key.
1098     * <p>Input: Nothing.
1099     * <p>Output: Nothing.
1100     */
1101    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1102    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1103
1104    /**
1105     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1106     * This intent is delivered to the package which installed the application, usually
1107     * the Market.
1108     * <p>Input: No data is specified. The bug report is passed in using
1109     * an {@link #EXTRA_BUG_REPORT} field.
1110     * <p>Output: Nothing.
1111     * @hide
1112     */
1113    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1114    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1115
1116    /**
1117     * Activity Action: Show power usage information to the user.
1118     * <p>Input: Nothing.
1119     * <p>Output: Nothing.
1120     */
1121    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1122    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1123
1124    /**
1125     * Activity Action: Setup wizard to launch after a platform update.  This
1126     * activity should have a string meta-data field associated with it,
1127     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1128     * the platform for setup.  The activity will be launched only if
1129     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1130     * same value.
1131     * <p>Input: Nothing.
1132     * <p>Output: Nothing.
1133     * @hide
1134     */
1135    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1136    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1137
1138    /**
1139     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1140     * describing the last run version of the platform that was setup.
1141     * @hide
1142     */
1143    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1144
1145    // ---------------------------------------------------------------------
1146    // ---------------------------------------------------------------------
1147    // Standard intent broadcast actions (see action variable).
1148
1149    /**
1150     * Broadcast Action: Sent after the screen turns off.
1151     *
1152     * <p class="note">This is a protected intent that can only be sent
1153     * by the system.
1154     */
1155    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1156    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1157    /**
1158     * Broadcast Action: Sent after the screen turns on.
1159     *
1160     * <p class="note">This is a protected intent that can only be sent
1161     * by the system.
1162     */
1163    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1164    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1165
1166    /**
1167     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1168     * keyguard is gone).
1169     *
1170     * <p class="note">This is a protected intent that can only be sent
1171     * by the system.
1172     */
1173    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1174    public static final String ACTION_USER_PRESENT= "android.intent.action.USER_PRESENT";
1175
1176    /**
1177     * Broadcast Action: The current time has changed.  Sent every
1178     * minute.  You can <em>not</em> receive this through components declared
1179     * in manifests, only by exlicitly registering for it with
1180     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1181     * Context.registerReceiver()}.
1182     *
1183     * <p class="note">This is a protected intent that can only be sent
1184     * by the system.
1185     */
1186    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1187    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1188    /**
1189     * Broadcast Action: The time was set.
1190     */
1191    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1192    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1193    /**
1194     * Broadcast Action: The date has changed.
1195     */
1196    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1197    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1198    /**
1199     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1200     * <ul>
1201     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1202     * </ul>
1203     *
1204     * <p class="note">This is a protected intent that can only be sent
1205     * by the system.
1206     */
1207    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1208    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1209    /**
1210     * Alarm Changed Action: This is broadcast when the AlarmClock
1211     * application's alarm is set or unset.  It is used by the
1212     * AlarmClock application and the StatusBar service.
1213     * @hide
1214     */
1215    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1216    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1217    /**
1218     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1219     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1220     * @hide
1221     */
1222    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1223    public static final String ACTION_SYNC_STATE_CHANGED
1224            = "android.intent.action.SYNC_STATE_CHANGED";
1225    /**
1226     * Broadcast Action: This is broadcast once, after the system has finished
1227     * booting.  It can be used to perform application-specific initialization,
1228     * such as installing alarms.  You must hold the
1229     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1230     * in order to receive this broadcast.
1231     *
1232     * <p class="note">This is a protected intent that can only be sent
1233     * by the system.
1234     */
1235    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1236    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1237    /**
1238     * Broadcast Action: This is broadcast when a user action should request a
1239     * temporary system dialog to dismiss.  Some examples of temporary system
1240     * dialogs are the notification window-shade and the recent tasks dialog.
1241     */
1242    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1243    /**
1244     * Broadcast Action: Trigger the download and eventual installation
1245     * of a package.
1246     * <p>Input: {@link #getData} is the URI of the package file to download.
1247     *
1248     * <p class="note">This is a protected intent that can only be sent
1249     * by the system.
1250     */
1251    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1252    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1253    /**
1254     * Broadcast Action: A new application package has been installed on the
1255     * device. The data contains the name of the package.  Note that the
1256     * newly installed package does <em>not</em> receive this broadcast.
1257     * <p>My include the following extras:
1258     * <ul>
1259     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1260     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1261     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1262     * </ul>
1263     *
1264     * <p class="note">This is a protected intent that can only be sent
1265     * by the system.
1266     */
1267    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1268    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1269    /**
1270     * Broadcast Action: A new version of an application package has been
1271     * installed, replacing an existing version that was previously installed.
1272     * The data contains the name of the package.
1273     * <p>My include the following extras:
1274     * <ul>
1275     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1276     * </ul>
1277     *
1278     * <p class="note">This is a protected intent that can only be sent
1279     * by the system.
1280     */
1281    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1282    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1283    /**
1284     * Broadcast Action: An existing application package has been removed from
1285     * the device.  The data contains the name of the package.  The package
1286     * that is being installed does <em>not</em> receive this Intent.
1287     * <ul>
1288     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1289     * to the package.
1290     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1291     * application -- data and code -- is being removed.
1292     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1293     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1294     * </ul>
1295     *
1296     * <p class="note">This is a protected intent that can only be sent
1297     * by the system.
1298     */
1299    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1300    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1301    /**
1302     * Broadcast Action: An existing application package has been changed (e.g.
1303     * a component has been enabled or disabled).  The data contains the name of
1304     * the package.
1305     * <ul>
1306     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1307     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
1308     * of the changed components.
1309     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
1310     * default action of restarting the application.
1311     * </ul>
1312     *
1313     * <p class="note">This is a protected intent that can only be sent
1314     * by the system.
1315     */
1316    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1317    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1318    /**
1319     * Broadcast Action: The user has restarted a package, and all of its
1320     * processes have been killed.  All runtime state
1321     * associated with it (processes, alarms, notifications, etc) should
1322     * be removed.  Note that the restarted package does <em>not</em>
1323     * receive this broadcast.
1324     * The data contains the name of the package.
1325     * <ul>
1326     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1327     * </ul>
1328     *
1329     * <p class="note">This is a protected intent that can only be sent
1330     * by the system.
1331     */
1332    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1333    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1334    /**
1335     * Broadcast Action: The user has cleared the data of a package.  This should
1336     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1337     * its persistent data is erased and this broadcast sent.
1338     * Note that the cleared package does <em>not</em>
1339     * receive this broadcast. The data contains the name of the package.
1340     * <ul>
1341     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1342     * </ul>
1343     *
1344     * <p class="note">This is a protected intent that can only be sent
1345     * by the system.
1346     */
1347    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1348    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1349    /**
1350     * Broadcast Action: A user ID has been removed from the system.  The user
1351     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1352     *
1353     * <p class="note">This is a protected intent that can only be sent
1354     * by the system.
1355     */
1356    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1357    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1358    /**
1359     * Broadcast Action:  The current system wallpaper has changed.  See
1360     * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
1361     */
1362    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1363    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1364    /**
1365     * Broadcast Action: The current device {@link android.content.res.Configuration}
1366     * (orientation, locale, etc) has changed.  When such a change happens, the
1367     * UIs (view hierarchy) will need to be rebuilt based on this new
1368     * information; for the most part, applications don't need to worry about
1369     * this, because the system will take care of stopping and restarting the
1370     * application to make sure it sees the new changes.  Some system code that
1371     * can not be restarted will need to watch for this action and handle it
1372     * appropriately.
1373     *
1374     * <p class="note">
1375     * You can <em>not</em> receive this through components declared
1376     * in manifests, only by explicitly registering for it with
1377     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1378     * Context.registerReceiver()}.
1379     *
1380     * <p class="note">This is a protected intent that can only be sent
1381     * by the system.
1382     *
1383     * @see android.content.res.Configuration
1384     */
1385    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1386    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1387    /**
1388     * Broadcast Action: The current device's locale has changed.
1389     *
1390     * <p class="note">This is a protected intent that can only be sent
1391     * by the system.
1392     */
1393    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1394    public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
1395    /**
1396     * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
1397     * charging state, level, and other information about the battery.
1398     * See {@link android.os.BatteryManager} for documentation on the
1399     * contents of the Intent.
1400     *
1401     * <p class="note">
1402     * You can <em>not</em> receive this through components declared
1403     * in manifests, only by explicitly registering for it with
1404     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1405     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1406     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1407     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1408     * broadcasts that are sent and can be received through manifest
1409     * receivers.
1410     *
1411     * <p class="note">This is a protected intent that can only be sent
1412     * by the system.
1413     */
1414    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1415    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1416    /**
1417     * Broadcast Action:  Indicates low battery condition on the device.
1418     * This broadcast corresponds to the "Low battery warning" system dialog.
1419     *
1420     * <p class="note">This is a protected intent that can only be sent
1421     * by the system.
1422     */
1423    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1424    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1425    /**
1426     * Broadcast Action:  Indicates the battery is now okay after being low.
1427     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1428     * gone back up to an okay state.
1429     *
1430     * <p class="note">This is a protected intent that can only be sent
1431     * by the system.
1432     */
1433    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1434    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1435    /**
1436     * Broadcast Action:  External power has been connected to the device.
1437     * This is intended for applications that wish to register specifically to this notification.
1438     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1439     * stay active to receive this notification.  This action can be used to implement actions
1440     * that wait until power is available to trigger.
1441     *
1442     * <p class="note">This is a protected intent that can only be sent
1443     * by the system.
1444     */
1445    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1446    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1447    /**
1448     * Broadcast Action:  External power has been removed from the device.
1449     * This is intended for applications that wish to register specifically to this notification.
1450     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1451     * stay active to receive this notification.  This action can be used to implement actions
1452     * that wait until power is available to trigger.
1453     *
1454     * <p class="note">This is a protected intent that can only be sent
1455     * by the system.
1456     */
1457    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1458    public static final String ACTION_POWER_DISCONNECTED =
1459            "android.intent.action.ACTION_POWER_DISCONNECTED";
1460    /**
1461     * Broadcast Action:  Device is shutting down.
1462     * This is broadcast when the device is being shut down (completely turned
1463     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1464     * will proceed and all unsaved data lost.  Apps will not normally need
1465     * to handle this, since the foreground activity will be paused as well.
1466     *
1467     * <p class="note">This is a protected intent that can only be sent
1468     * by the system.
1469     */
1470    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1471    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1472    /**
1473     * Activity Action:  Start this activity to request system shutdown.
1474     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1475     * to request confirmation from the user before shutting down.
1476     *
1477     * <p class="note">This is a protected intent that can only be sent
1478     * by the system.
1479     *
1480     * {@hide}
1481     */
1482    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1483    /**
1484     * Broadcast Action:  A sticky broadcast that indicates low memory
1485     * condition on the device
1486     *
1487     * <p class="note">This is a protected intent that can only be sent
1488     * by the system.
1489     */
1490    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1491    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1492    /**
1493     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1494     *
1495     * <p class="note">This is a protected intent that can only be sent
1496     * by the system.
1497     */
1498    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1499    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1500    /**
1501     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1502     * and package management should be started.
1503     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1504     * notification.
1505     */
1506    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1507    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1508    /**
1509     * Broadcast Action:  The device has entered USB Mass Storage mode.
1510     * This is used mainly for the USB Settings panel.
1511     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1512     * when the SD card file system is mounted or unmounted
1513     */
1514    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1515    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1516
1517    /**
1518     * Broadcast Action:  The device has exited USB Mass Storage mode.
1519     * This is used mainly for the USB Settings panel.
1520     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1521     * when the SD card file system is mounted or unmounted
1522     */
1523    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1524    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1525
1526    /**
1527     * Broadcast Action:  External media has been removed.
1528     * The path to the mount point for the removed media is contained in the Intent.mData field.
1529     */
1530    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1531    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1532
1533    /**
1534     * Broadcast Action:  External media is present, but not mounted at its mount point.
1535     * The path to the mount point for the removed media is contained in the Intent.mData field.
1536     */
1537    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1538    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1539
1540    /**
1541     * Broadcast Action:  External media is present, and being disk-checked
1542     * The path to the mount point for the checking media is contained in the Intent.mData field.
1543     */
1544    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1545    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1546
1547    /**
1548     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1549     * The path to the mount point for the checking media is contained in the Intent.mData field.
1550     */
1551    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1552    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1553
1554    /**
1555     * Broadcast Action:  External media is present and mounted at its mount point.
1556     * The path to the mount point for the removed media is contained in the Intent.mData field.
1557     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1558     * media was mounted read only.
1559     */
1560    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1561    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1562
1563    /**
1564     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1565     * The path to the mount point for the removed media is contained in the Intent.mData field.
1566     */
1567    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1568    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1569
1570    /**
1571     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1572     * The path to the mount point for the removed media is contained in the Intent.mData field.
1573     */
1574    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1575    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1576
1577    /**
1578     * Broadcast Action:  External media is present but cannot be mounted.
1579     * The path to the mount point for the removed media is contained in the Intent.mData field.
1580     */
1581    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1582    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1583
1584   /**
1585     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1586     * Applications should close all files they have open within the mount point when they receive this intent.
1587     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1588     */
1589    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1590    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1591
1592    /**
1593     * Broadcast Action:  The media scanner has started scanning a directory.
1594     * The path to the directory being scanned is contained in the Intent.mData field.
1595     */
1596    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1597    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1598
1599   /**
1600     * Broadcast Action:  The media scanner has finished scanning a directory.
1601     * The path to the scanned directory is contained in the Intent.mData field.
1602     */
1603    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1604    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1605
1606   /**
1607     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1608     * The path to the file is contained in the Intent.mData field.
1609     */
1610    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1611    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1612
1613   /**
1614     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1615     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1616     * caused the broadcast.
1617     */
1618    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1619    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1620
1621    /**
1622     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1623     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1624     * caused the broadcast.
1625     */
1626    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1627    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1628
1629    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1630    // location; they are not general-purpose actions.
1631
1632    /**
1633     * Broadcast Action: An GTalk connection has been established.
1634     */
1635    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1636    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1637            "android.intent.action.GTALK_CONNECTED";
1638
1639    /**
1640     * Broadcast Action: An GTalk connection has been disconnected.
1641     */
1642    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1643    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1644            "android.intent.action.GTALK_DISCONNECTED";
1645
1646    /**
1647     * Broadcast Action: An input method has been changed.
1648     */
1649    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1650    public static final String ACTION_INPUT_METHOD_CHANGED =
1651            "android.intent.action.INPUT_METHOD_CHANGED";
1652
1653    /**
1654     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1655     * more radios have been turned off or on. The intent will have the following extra value:</p>
1656     * <ul>
1657     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1658     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1659     *   turned off</li>
1660     * </ul>
1661     *
1662     * <p class="note">This is a protected intent that can only be sent
1663     * by the system.
1664     */
1665    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1666    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1667
1668    /**
1669     * Broadcast Action: Some content providers have parts of their namespace
1670     * where they publish new events or items that the user may be especially
1671     * interested in. For these things, they may broadcast this action when the
1672     * set of interesting items change.
1673     *
1674     * For example, GmailProvider sends this notification when the set of unread
1675     * mail in the inbox changes.
1676     *
1677     * <p>The data of the intent identifies which part of which provider
1678     * changed. When queried through the content resolver, the data URI will
1679     * return the data set in question.
1680     *
1681     * <p>The intent will have the following extra values:
1682     * <ul>
1683     *   <li><em>count</em> - The number of items in the data set. This is the
1684     *       same as the number of items in the cursor returned by querying the
1685     *       data URI. </li>
1686     * </ul>
1687     *
1688     * This intent will be sent at boot (if the count is non-zero) and when the
1689     * data set changes. It is possible for the data set to change without the
1690     * count changing (for example, if a new unread message arrives in the same
1691     * sync operation in which a message is archived). The phone should still
1692     * ring/vibrate/etc as normal in this case.
1693     */
1694    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1695    public static final String ACTION_PROVIDER_CHANGED =
1696            "android.intent.action.PROVIDER_CHANGED";
1697
1698    /**
1699     * Broadcast Action: Wired Headset plugged in or unplugged.
1700     *
1701     * <p>The intent will have the following extra values:
1702     * <ul>
1703     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1704     *   <li><em>name</em> - Headset type, human readable string </li>
1705     *   <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
1706     * </ul>
1707     * </ul>
1708     */
1709    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1710    public static final String ACTION_HEADSET_PLUG =
1711            "android.intent.action.HEADSET_PLUG";
1712
1713    /**
1714     * Broadcast Action: An outgoing call is about to be placed.
1715     *
1716     * <p>The Intent will have the following extra value:
1717     * <ul>
1718     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1719     *       the phone number originally intended to be dialed.</li>
1720     * </ul>
1721     * <p>Once the broadcast is finished, the resultData is used as the actual
1722     * number to call.  If  <code>null</code>, no call will be placed.</p>
1723     * <p>It is perfectly acceptable for multiple receivers to process the
1724     * outgoing call in turn: for example, a parental control application
1725     * might verify that the user is authorized to place the call at that
1726     * time, then a number-rewriting application might add an area code if
1727     * one was not specified.</p>
1728     * <p>For consistency, any receiver whose purpose is to prohibit phone
1729     * calls should have a priority of 0, to ensure it will see the final
1730     * phone number to be dialed.
1731     * Any receiver whose purpose is to rewrite phone numbers to be called
1732     * should have a positive priority.
1733     * Negative priorities are reserved for the system for this broadcast;
1734     * using them may cause problems.</p>
1735     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1736     * abort the broadcast.</p>
1737     * <p>Emergency calls cannot be intercepted using this mechanism, and
1738     * other calls cannot be modified to call emergency numbers using this
1739     * mechanism.
1740     * <p>You must hold the
1741     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1742     * permission to receive this Intent.</p>
1743     *
1744     * <p class="note">This is a protected intent that can only be sent
1745     * by the system.
1746     */
1747    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1748    public static final String ACTION_NEW_OUTGOING_CALL =
1749            "android.intent.action.NEW_OUTGOING_CALL";
1750
1751    /**
1752     * Broadcast Action: Have the device reboot.  This is only for use by
1753     * system code.
1754     *
1755     * <p class="note">This is a protected intent that can only be sent
1756     * by the system.
1757     */
1758    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1759    public static final String ACTION_REBOOT =
1760            "android.intent.action.REBOOT";
1761
1762    /**
1763     * Broadcast Action:  A sticky broadcast indicating the phone was docked
1764     * or undocked.  Includes the extra
1765     * field {@link #EXTRA_DOCK_STATE}, containing the current dock state.
1766     * This is intended for monitoring the current dock state.
1767     * To launch an activity from a dock state change, use {@link #CATEGORY_CAR_DOCK}
1768     * or {@link #CATEGORY_DESK_DOCK} instead.
1769     */
1770    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1771    public static final String ACTION_DOCK_EVENT =
1772            "android.intent.action.DOCK_EVENT";
1773
1774    /**
1775     * Broadcast Action: a remote intent is to be broadcasted.
1776     *
1777     * A remote intent is used for remote RPC between devices. The remote intent
1778     * is serialized and sent from one device to another device. The receiving
1779     * device parses the remote intent and broadcasts it. Note that anyone can
1780     * broadcast a remote intent. However, if the intent receiver of the remote intent
1781     * does not trust intent broadcasts from arbitrary intent senders, it should require
1782     * the sender to hold certain permissions so only trusted sender's broadcast will be
1783     * let through.
1784     * @hide
1785     */
1786    public static final String ACTION_REMOTE_INTENT =
1787            "android.intent.action.REMOTE_INTENT";
1788
1789    /**
1790     * Broadcast Action: hook for permforming cleanup after a system update.
1791     *
1792     * The broadcast is sent when the system is booting, before the
1793     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1794     * image.  A receiver for this should do its work and then disable itself
1795     * so that it does not get run again at the next boot.
1796     * @hide
1797     */
1798    public static final String ACTION_PRE_BOOT_COMPLETED =
1799            "android.intent.action.PRE_BOOT_COMPLETED";
1800
1801    // ---------------------------------------------------------------------
1802    // ---------------------------------------------------------------------
1803    // Standard intent categories (see addCategory()).
1804
1805    /**
1806     * Set if the activity should be an option for the default action
1807     * (center press) to perform on a piece of data.  Setting this will
1808     * hide from the user any activities without it set when performing an
1809     * action on some data.  Note that this is normal -not- set in the
1810     * Intent when initiating an action -- it is for use in intent filters
1811     * specified in packages.
1812     */
1813    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1814    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1815    /**
1816     * Activities that can be safely invoked from a browser must support this
1817     * category.  For example, if the user is viewing a web page or an e-mail
1818     * and clicks on a link in the text, the Intent generated execute that
1819     * link will require the BROWSABLE category, so that only activities
1820     * supporting this category will be considered as possible actions.  By
1821     * supporting this category, you are promising that there is nothing
1822     * damaging (without user intervention) that can happen by invoking any
1823     * matching Intent.
1824     */
1825    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1826    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1827    /**
1828     * Set if the activity should be considered as an alternative action to
1829     * the data the user is currently viewing.  See also
1830     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1831     * applies to the selection in a list of items.
1832     *
1833     * <p>Supporting this category means that you would like your activity to be
1834     * displayed in the set of alternative things the user can do, usually as
1835     * part of the current activity's options menu.  You will usually want to
1836     * include a specific label in the &lt;intent-filter&gt; of this action
1837     * describing to the user what it does.
1838     *
1839     * <p>The action of IntentFilter with this category is important in that it
1840     * describes the specific action the target will perform.  This generally
1841     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1842     * a specific name such as "com.android.camera.action.CROP.  Only one
1843     * alternative of any particular action will be shown to the user, so using
1844     * a specific action like this makes sure that your alternative will be
1845     * displayed while also allowing other applications to provide their own
1846     * overrides of that particular action.
1847     */
1848    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1849    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1850    /**
1851     * Set if the activity should be considered as an alternative selection
1852     * action to the data the user has currently selected.  This is like
1853     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1854     * of items from which the user can select, giving them alternatives to the
1855     * default action that will be performed on it.
1856     */
1857    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1858    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1859    /**
1860     * Intended to be used as a tab inside of an containing TabActivity.
1861     */
1862    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1863    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1864    /**
1865     * Should be displayed in the top-level launcher.
1866     */
1867    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1868    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1869    /**
1870     * Provides information about the package it is in; typically used if
1871     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1872     * a front-door to the user without having to be shown in the all apps list.
1873     */
1874    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1875    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1876    /**
1877     * This is the home activity, that is the first activity that is displayed
1878     * when the device boots.
1879     */
1880    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1881    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1882    /**
1883     * This activity is a preference panel.
1884     */
1885    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1886    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1887    /**
1888     * This activity is a development preference panel.
1889     */
1890    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1891    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1892    /**
1893     * Capable of running inside a parent activity container.
1894     */
1895    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1896    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1897    /**
1898     * This activity may be exercised by the monkey or other automated test tools.
1899     */
1900    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1901    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1902    /**
1903     * To be used as a test (not part of the normal user experience).
1904     */
1905    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1906    /**
1907     * To be used as a unit test (run through the Test Harness).
1908     */
1909    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1910    /**
1911     * To be used as an sample code example (not part of the normal user
1912     * experience).
1913     */
1914    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1915    /**
1916     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1917     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1918     * when queried, though it is allowable for those columns to be blank.
1919     */
1920    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1921    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1922
1923    /**
1924     * To be used as code under test for framework instrumentation tests.
1925     */
1926    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1927            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1928    /**
1929     * An activity to run when device is inserted into a car dock.
1930     * Used with {@link #ACTION_MAIN} to launch an activity.
1931     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1932     */
1933    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1934    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
1935    /**
1936     * An activity to run when device is inserted into a car dock.
1937     * Used with {@link #ACTION_MAIN} to launch an activity.
1938     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1939     */
1940    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1941    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
1942
1943    // ---------------------------------------------------------------------
1944    // ---------------------------------------------------------------------
1945    // Standard extra data keys.
1946
1947    /**
1948     * The initial data to place in a newly created record.  Use with
1949     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1950     * fields as would be given to the underlying ContentProvider.insert()
1951     * call.
1952     */
1953    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1954
1955    /**
1956     * A constant CharSequence that is associated with the Intent, used with
1957     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1958     * this may be a styled CharSequence, so you must use
1959     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1960     * retrieve it.
1961     */
1962    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1963
1964    /**
1965     * A content: URI holding a stream of data associated with the Intent,
1966     * used with {@link #ACTION_SEND} to supply the data being sent.
1967     */
1968    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1969
1970    /**
1971     * A String[] holding e-mail addresses that should be delivered to.
1972     */
1973    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1974
1975    /**
1976     * A String[] holding e-mail addresses that should be carbon copied.
1977     */
1978    public static final String EXTRA_CC       = "android.intent.extra.CC";
1979
1980    /**
1981     * A String[] holding e-mail addresses that should be blind carbon copied.
1982     */
1983    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1984
1985    /**
1986     * A constant string holding the desired subject line of a message.
1987     */
1988    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1989
1990    /**
1991     * An Intent describing the choices you would like shown with
1992     * {@link #ACTION_PICK_ACTIVITY}.
1993     */
1994    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1995
1996    /**
1997     * A CharSequence dialog title to provide to the user when used with a
1998     * {@link #ACTION_CHOOSER}.
1999     */
2000    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
2001
2002    /**
2003     * A Parcelable[] of {@link Intent} or
2004     * {@link android.content.pm.LabeledIntent} objects as set with
2005     * {@link #putExtra(String, Parcelable[])} of additional activities to place
2006     * a the front of the list of choices, when shown to the user with a
2007     * {@link #ACTION_CHOOSER}.
2008     */
2009    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
2010
2011    /**
2012     * A {@link android.view.KeyEvent} object containing the event that
2013     * triggered the creation of the Intent it is in.
2014     */
2015    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
2016
2017    /**
2018     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
2019     * before shutting down.
2020     *
2021     * {@hide}
2022     */
2023    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
2024
2025    /**
2026     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2027     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
2028     * of restarting the application.
2029     */
2030    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
2031
2032    /**
2033     * A String holding the phone number originally entered in
2034     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
2035     * number to call in a {@link android.content.Intent#ACTION_CALL}.
2036     */
2037    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
2038    /**
2039     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
2040     * intents to supply the uid the package had been assigned.  Also an optional
2041     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2042     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2043     * purpose.
2044     */
2045    public static final String EXTRA_UID = "android.intent.extra.UID";
2046
2047    /**
2048     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2049     * intents to indicate whether this represents a full uninstall (removing
2050     * both the code and its data) or a partial uninstall (leaving its data,
2051     * implying that this is an update).
2052     */
2053    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2054
2055    /**
2056     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2057     * intents to indicate that this is a replacement of the package, so this
2058     * broadcast will immediately be followed by an add broadcast for a
2059     * different version of the same package.
2060     */
2061    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2062
2063    /**
2064     * Used as an int extra field in {@link android.app.AlarmManager} intents
2065     * to tell the application being invoked how many pending alarms are being
2066     * delievered with the intent.  For one-shot alarms this will always be 1.
2067     * For recurring alarms, this might be greater than 1 if the device was
2068     * asleep or powered off at the time an earlier alarm would have been
2069     * delivered.
2070     */
2071    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2072
2073    /**
2074     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2075     * intents to request the dock state.  Possible values are
2076     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2077     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2078     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
2079     */
2080    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2081
2082    /**
2083     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2084     * to represent that the phone is not in any dock.
2085     */
2086    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2087
2088    /**
2089     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2090     * to represent that the phone is in a desk dock.
2091     */
2092    public static final int EXTRA_DOCK_STATE_DESK = 1;
2093
2094    /**
2095     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2096     * to represent that the phone is in a car dock.
2097     */
2098    public static final int EXTRA_DOCK_STATE_CAR = 2;
2099
2100    /**
2101     * Boolean that can be supplied as meta-data with a dock activity, to
2102     * indicate that the dock should take over the home key when it is active.
2103     */
2104    public static final String METADATA_DOCK_HOME = "android.dock_home";
2105
2106    /**
2107     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2108     * the bug report.
2109     *
2110     * @hide
2111     */
2112    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2113
2114    /**
2115     * Used as a string extra field when sending an intent to PackageInstaller to install a
2116     * package. Specifies the installer package name; this package will receive the
2117     * {@link #ACTION_APP_ERROR} intent.
2118     *
2119     * @hide
2120     */
2121    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2122            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2123
2124    /**
2125     * Used in the extra field in the remote intent. It's astring token passed with the
2126     * remote intent.
2127     */
2128    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2129            "android.intent.extra.remote_intent_token";
2130
2131    /**
2132     * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
2133     * will contain only the first name in the list.
2134     */
2135    @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
2136            "android.intent.extra.changed_component_name";
2137
2138    /**
2139     * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED}
2140     * and contains a string array of all of the components that have changed.
2141     */
2142    public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
2143            "android.intent.extra.changed_component_name_list";
2144
2145    /**
2146     * @hide
2147     * Magic extra system code can use when binding, to give a label for
2148     * who it is that has bound to a service.  This is an integer giving
2149     * a framework string resource that can be displayed to the user.
2150     */
2151    public static final String EXTRA_CLIENT_LABEL =
2152            "android.intent.extra.client_label";
2153
2154    /**
2155     * @hide
2156     * Magic extra system code can use when binding, to give a PendingIntent object
2157     * that can be launched for the user to disable the system's use of this
2158     * service.
2159     */
2160    public static final String EXTRA_CLIENT_INTENT =
2161            "android.intent.extra.client_intent";
2162
2163    // ---------------------------------------------------------------------
2164    // ---------------------------------------------------------------------
2165    // Intent flags (see mFlags variable).
2166
2167    /**
2168     * If set, the recipient of this Intent will be granted permission to
2169     * perform read operations on the Uri in the Intent's data.
2170     */
2171    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2172    /**
2173     * If set, the recipient of this Intent will be granted permission to
2174     * perform write operations on the Uri in the Intent's data.
2175     */
2176    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2177    /**
2178     * Can be set by the caller to indicate that this Intent is coming from
2179     * a background operation, not from direct user interaction.
2180     */
2181    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2182    /**
2183     * A flag you can enable for debugging: when set, log messages will be
2184     * printed during the resolution of this intent to show you what has
2185     * been found to create the final resolved list.
2186     */
2187    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2188
2189    /**
2190     * If set, the new activity is not kept in the history stack.  As soon as
2191     * the user navigates away from it, the activity is finished.  This may also
2192     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2193     * noHistory} attribute.
2194     */
2195    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2196    /**
2197     * If set, the activity will not be launched if it is already running
2198     * at the top of the history stack.
2199     */
2200    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2201    /**
2202     * If set, this activity will become the start of a new task on this
2203     * history stack.  A task (from the activity that started it to the
2204     * next task activity) defines an atomic group of activities that the
2205     * user can move to.  Tasks can be moved to the foreground and background;
2206     * all of the activities inside of a particular task always remain in
2207     * the same order.  See
2208     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2209     * Activities and Tasks</a> for more details on tasks.
2210     *
2211     * <p>This flag is generally used by activities that want
2212     * to present a "launcher" style behavior: they give the user a list of
2213     * separate things that can be done, which otherwise run completely
2214     * independently of the activity launching them.
2215     *
2216     * <p>When using this flag, if a task is already running for the activity
2217     * you are now starting, then a new activity will not be started; instead,
2218     * the current task will simply be brought to the front of the screen with
2219     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2220     * to disable this behavior.
2221     *
2222     * <p>This flag can not be used when the caller is requesting a result from
2223     * the activity being launched.
2224     */
2225    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2226    /**
2227     * <strong>Do not use this flag unless you are implementing your own
2228     * top-level application launcher.</strong>  Used in conjunction with
2229     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2230     * behavior of bringing an existing task to the foreground.  When set,
2231     * a new task is <em>always</em> started to host the Activity for the
2232     * Intent, regardless of whether there is already an existing task running
2233     * the same thing.
2234     *
2235     * <p><strong>Because the default system does not include graphical task management,
2236     * you should not use this flag unless you provide some way for a user to
2237     * return back to the tasks you have launched.</strong>
2238     *
2239     * <p>This flag is ignored if
2240     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2241     *
2242     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2243     * Activities and Tasks</a> for more details on tasks.
2244     */
2245    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2246    /**
2247     * If set, and the activity being launched is already running in the
2248     * current task, then instead of launching a new instance of that activity,
2249     * all of the other activities on top of it will be closed and this Intent
2250     * will be delivered to the (now on top) old activity as a new Intent.
2251     *
2252     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2253     * If D calls startActivity() with an Intent that resolves to the component
2254     * of activity B, then C and D will be finished and B receive the given
2255     * Intent, resulting in the stack now being: A, B.
2256     *
2257     * <p>The currently running instance of activity B in the above example will
2258     * either receive the new intent you are starting here in its
2259     * onNewIntent() method, or be itself finished and restarted with the
2260     * new intent.  If it has declared its launch mode to be "multiple" (the
2261     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2262     * the same intent, then it will be finished and re-created; for all other
2263     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2264     * Intent will be delivered to the current instance's onNewIntent().
2265     *
2266     * <p>This launch mode can also be used to good effect in conjunction with
2267     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2268     * of a task, it will bring any currently running instance of that task
2269     * to the foreground, and then clear it to its root state.  This is
2270     * especially useful, for example, when launching an activity from the
2271     * notification manager.
2272     *
2273     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2274     * Activities and Tasks</a> for more details on tasks.
2275     */
2276    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2277    /**
2278     * If set and this intent is being used to launch a new activity from an
2279     * existing one, then the reply target of the existing activity will be
2280     * transfered to the new activity.  This way the new activity can call
2281     * {@link android.app.Activity#setResult} and have that result sent back to
2282     * the reply target of the original activity.
2283     */
2284    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2285    /**
2286     * If set and this intent is being used to launch a new activity from an
2287     * existing one, the current activity will not be counted as the top
2288     * activity for deciding whether the new intent should be delivered to
2289     * the top instead of starting a new one.  The previous activity will
2290     * be used as the top, with the assumption being that the current activity
2291     * will finish itself immediately.
2292     */
2293    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2294    /**
2295     * If set, the new activity is not kept in the list of recently launched
2296     * activities.
2297     */
2298    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2299    /**
2300     * This flag is not normally set by application code, but set for you by
2301     * the system as described in the
2302     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2303     * launchMode} documentation for the singleTask mode.
2304     */
2305    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2306    /**
2307     * If set, and this activity is either being started in a new task or
2308     * bringing to the top an existing task, then it will be launched as
2309     * the front door of the task.  This will result in the application of
2310     * any affinities needed to have that task in the proper state (either
2311     * moving activities to or from it), or simply resetting that task to
2312     * its initial state if needed.
2313     */
2314    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2315    /**
2316     * This flag is not normally set by application code, but set for you by
2317     * the system if this activity is being launched from history
2318     * (longpress home key).
2319     */
2320    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2321    /**
2322     * If set, this marks a point in the task's activity stack that should
2323     * be cleared when the task is reset.  That is, the next time the task
2324     * is brought to the foreground with
2325     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2326     * the user re-launching it from home), this activity and all on top of
2327     * it will be finished so that the user does not return to them, but
2328     * instead returns to whatever activity preceeded it.
2329     *
2330     * <p>This is useful for cases where you have a logical break in your
2331     * application.  For example, an e-mail application may have a command
2332     * to view an attachment, which launches an image view activity to
2333     * display it.  This activity should be part of the e-mail application's
2334     * task, since it is a part of the task the user is involved in.  However,
2335     * if the user leaves that task, and later selects the e-mail app from
2336     * home, we may like them to return to the conversation they were
2337     * viewing, not the picture attachment, since that is confusing.  By
2338     * setting this flag when launching the image viewer, that viewer and
2339     * any activities it starts will be removed the next time the user returns
2340     * to mail.
2341     */
2342    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2343    /**
2344     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2345     * callback from occurring on the current frontmost activity before it is
2346     * paused as the newly-started activity is brought to the front.
2347     *
2348     * <p>Typically, an activity can rely on that callback to indicate that an
2349     * explicit user action has caused their activity to be moved out of the
2350     * foreground. The callback marks an appropriate point in the activity's
2351     * lifecycle for it to dismiss any notifications that it intends to display
2352     * "until the user has seen them," such as a blinking LED.
2353     *
2354     * <p>If an activity is ever started via any non-user-driven events such as
2355     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2356     * Context#startActivity Context.startActivity}, ensuring that the pausing
2357     * activity does not think the user has acknowledged its notification.
2358     */
2359    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2360    /**
2361     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2362     * this flag will cause the launched activity to be brought to the front of its
2363     * task's history stack if it is already running.
2364     *
2365     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2366     * If D calls startActivity() with an Intent that resolves to the component
2367     * of activity B, then B will be brought to the front of the history stack,
2368     * with this resulting order:  A, C, D, B.
2369     *
2370     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2371     * specified.
2372     */
2373    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2374    /**
2375     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2376     * this flag will prevent the system from applying an activity transition
2377     * animation to go to the next activity state.  This doesn't mean an
2378     * animation will never run -- if another activity change happens that doesn't
2379     * specify this flag before the activity started here is displayed, then
2380     * that transition will be used.  This this flag can be put to good use
2381     * when you are going to do a series of activity operations but the
2382     * animation seen by the user shouldn't be driven by the first activity
2383     * change but rather a later one.
2384     */
2385    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
2386    /**
2387     * If set, when sending a broadcast only registered receivers will be
2388     * called -- no BroadcastReceiver components will be launched.
2389     */
2390    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2391    /**
2392     * If set, when sending a broadcast <i>before boot has completed</i> only
2393     * registered receivers will be called -- no BroadcastReceiver components
2394     * will be launched.  Sticky intent state will be recorded properly even
2395     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2396     * is specified in the broadcast intent, this flag is unnecessary.
2397     *
2398     * <p>This flag is only for use by system sevices as a convenience to
2399     * avoid having to implement a more complex mechanism around detection
2400     * of boot completion.
2401     *
2402     * @hide
2403     */
2404    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2405    /**
2406     * Set when this broadcast is for a boot upgrade, a special mode that
2407     * allows the broadcast to be sent before the system is ready and launches
2408     * the app process with no providers running in it.
2409     * @hide
2410     */
2411    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x10000000;
2412
2413    /**
2414     * @hide Flags that can't be changed with PendingIntent.
2415     */
2416    public static final int IMMUTABLE_FLAGS =
2417            FLAG_GRANT_READ_URI_PERMISSION
2418            | FLAG_GRANT_WRITE_URI_PERMISSION;
2419
2420    // ---------------------------------------------------------------------
2421    // ---------------------------------------------------------------------
2422    // toUri() and parseUri() options.
2423
2424    /**
2425     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2426     * always has the "intent:" scheme.  This syntax can be used when you want
2427     * to later disambiguate between URIs that are intended to describe an
2428     * Intent vs. all others that should be treated as raw URIs.  When used
2429     * with {@link #parseUri}, any other scheme will result in a generic
2430     * VIEW action for that raw URI.
2431     */
2432    public static final int URI_INTENT_SCHEME = 1<<0;
2433
2434    // ---------------------------------------------------------------------
2435
2436    private String mAction;
2437    private Uri mData;
2438    private String mType;
2439    private String mPackage;
2440    private ComponentName mComponent;
2441    private int mFlags;
2442    private HashSet<String> mCategories;
2443    private Bundle mExtras;
2444    private Rect mSourceBounds;
2445
2446    // ---------------------------------------------------------------------
2447
2448    /**
2449     * Create an empty intent.
2450     */
2451    public Intent() {
2452    }
2453
2454    /**
2455     * Copy constructor.
2456     */
2457    public Intent(Intent o) {
2458        this.mAction = o.mAction;
2459        this.mData = o.mData;
2460        this.mType = o.mType;
2461        this.mPackage = o.mPackage;
2462        this.mComponent = o.mComponent;
2463        this.mFlags = o.mFlags;
2464        if (o.mCategories != null) {
2465            this.mCategories = new HashSet<String>(o.mCategories);
2466        }
2467        if (o.mExtras != null) {
2468            this.mExtras = new Bundle(o.mExtras);
2469        }
2470        if (o.mSourceBounds != null) {
2471            this.mSourceBounds = new Rect(o.mSourceBounds);
2472        }
2473    }
2474
2475    @Override
2476    public Object clone() {
2477        return new Intent(this);
2478    }
2479
2480    private Intent(Intent o, boolean all) {
2481        this.mAction = o.mAction;
2482        this.mData = o.mData;
2483        this.mType = o.mType;
2484        this.mPackage = o.mPackage;
2485        this.mComponent = o.mComponent;
2486        if (o.mCategories != null) {
2487            this.mCategories = new HashSet<String>(o.mCategories);
2488        }
2489    }
2490
2491    /**
2492     * Make a clone of only the parts of the Intent that are relevant for
2493     * filter matching: the action, data, type, component, and categories.
2494     */
2495    public Intent cloneFilter() {
2496        return new Intent(this, false);
2497    }
2498
2499    /**
2500     * Create an intent with a given action.  All other fields (data, type,
2501     * class) are null.  Note that the action <em>must</em> be in a
2502     * namespace because Intents are used globally in the system -- for
2503     * example the system VIEW action is android.intent.action.VIEW; an
2504     * application's custom action would be something like
2505     * com.google.app.myapp.CUSTOM_ACTION.
2506     *
2507     * @param action The Intent action, such as ACTION_VIEW.
2508     */
2509    public Intent(String action) {
2510        mAction = action;
2511    }
2512
2513    /**
2514     * Create an intent with a given action and for a given data url.  Note
2515     * that the action <em>must</em> be in a namespace because Intents are
2516     * used globally in the system -- for example the system VIEW action is
2517     * android.intent.action.VIEW; an application's custom action would be
2518     * something like com.google.app.myapp.CUSTOM_ACTION.
2519     *
2520     * <p><em>Note: scheme and host name matching in the Android framework is
2521     * case-sensitive, unlike the formal RFC.  As a result,
2522     * you should always ensure that you write your Uri with these elements
2523     * using lower case letters, and normalize any Uris you receive from
2524     * outside of Android to ensure the scheme and host is lower case.</em></p>
2525     *
2526     * @param action The Intent action, such as ACTION_VIEW.
2527     * @param uri The Intent data URI.
2528     */
2529    public Intent(String action, Uri uri) {
2530        mAction = action;
2531        mData = uri;
2532    }
2533
2534    /**
2535     * Create an intent for a specific component.  All other fields (action, data,
2536     * type, class) are null, though they can be modified later with explicit
2537     * calls.  This provides a convenient way to create an intent that is
2538     * intended to execute a hard-coded class name, rather than relying on the
2539     * system to find an appropriate class for you; see {@link #setComponent}
2540     * for more information on the repercussions of this.
2541     *
2542     * @param packageContext A Context of the application package implementing
2543     * this class.
2544     * @param cls The component class that is to be used for the intent.
2545     *
2546     * @see #setClass
2547     * @see #setComponent
2548     * @see #Intent(String, android.net.Uri , Context, Class)
2549     */
2550    public Intent(Context packageContext, Class<?> cls) {
2551        mComponent = new ComponentName(packageContext, cls);
2552    }
2553
2554    /**
2555     * Create an intent for a specific component with a specified action and data.
2556     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2557     * construct the Intent and then calling {@link #setClass} to set its
2558     * class.
2559     *
2560     * <p><em>Note: scheme and host name matching in the Android framework is
2561     * case-sensitive, unlike the formal RFC.  As a result,
2562     * you should always ensure that you write your Uri with these elements
2563     * using lower case letters, and normalize any Uris you receive from
2564     * outside of Android to ensure the scheme and host is lower case.</em></p>
2565     *
2566     * @param action The Intent action, such as ACTION_VIEW.
2567     * @param uri The Intent data URI.
2568     * @param packageContext A Context of the application package implementing
2569     * this class.
2570     * @param cls The component class that is to be used for the intent.
2571     *
2572     * @see #Intent(String, android.net.Uri)
2573     * @see #Intent(Context, Class)
2574     * @see #setClass
2575     * @see #setComponent
2576     */
2577    public Intent(String action, Uri uri,
2578            Context packageContext, Class<?> cls) {
2579        mAction = action;
2580        mData = uri;
2581        mComponent = new ComponentName(packageContext, cls);
2582    }
2583
2584    /**
2585     * Call {@link #parseUri} with 0 flags.
2586     * @deprecated Use {@link #parseUri} instead.
2587     */
2588    @Deprecated
2589    public static Intent getIntent(String uri) throws URISyntaxException {
2590        return parseUri(uri, 0);
2591    }
2592
2593    /**
2594     * Create an intent from a URI.  This URI may encode the action,
2595     * category, and other intent fields, if it was returned by
2596     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2597     * will be the entire URI and its action will be ACTION_VIEW.
2598     *
2599     * <p>The URI given here must not be relative -- that is, it must include
2600     * the scheme and full path.
2601     *
2602     * @param uri The URI to turn into an Intent.
2603     * @param flags Additional processing flags.  Either 0 or
2604     * {@link #URI_INTENT_SCHEME}.
2605     *
2606     * @return Intent The newly created Intent object.
2607     *
2608     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2609     * it bad (as parsed by the Uri class) or the Intent data within the
2610     * URI is invalid.
2611     *
2612     * @see #toUri
2613     */
2614    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2615        int i = 0;
2616        try {
2617            // Validate intent scheme for if requested.
2618            if ((flags&URI_INTENT_SCHEME) != 0) {
2619                if (!uri.startsWith("intent:")) {
2620                    Intent intent = new Intent(ACTION_VIEW);
2621                    try {
2622                        intent.setData(Uri.parse(uri));
2623                    } catch (IllegalArgumentException e) {
2624                        throw new URISyntaxException(uri, e.getMessage());
2625                    }
2626                    return intent;
2627                }
2628            }
2629
2630            // simple case
2631            i = uri.lastIndexOf("#");
2632            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2633
2634            // old format Intent URI
2635            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2636
2637            // new format
2638            Intent intent = new Intent(ACTION_VIEW);
2639
2640            // fetch data part, if present
2641            String data = i >= 0 ? uri.substring(0, i) : null;
2642            String scheme = null;
2643            i += "#Intent;".length();
2644
2645            // loop over contents of Intent, all name=value;
2646            while (!uri.startsWith("end", i)) {
2647                int eq = uri.indexOf('=', i);
2648                int semi = uri.indexOf(';', eq);
2649                String value = Uri.decode(uri.substring(eq + 1, semi));
2650
2651                // action
2652                if (uri.startsWith("action=", i)) {
2653                    intent.mAction = value;
2654                }
2655
2656                // categories
2657                else if (uri.startsWith("category=", i)) {
2658                    intent.addCategory(value);
2659                }
2660
2661                // type
2662                else if (uri.startsWith("type=", i)) {
2663                    intent.mType = value;
2664                }
2665
2666                // launch flags
2667                else if (uri.startsWith("launchFlags=", i)) {
2668                    intent.mFlags = Integer.decode(value).intValue();
2669                }
2670
2671                // package
2672                else if (uri.startsWith("package=", i)) {
2673                    intent.mPackage = value;
2674                }
2675
2676                // component
2677                else if (uri.startsWith("component=", i)) {
2678                    intent.mComponent = ComponentName.unflattenFromString(value);
2679                }
2680
2681                // scheme
2682                else if (uri.startsWith("scheme=", i)) {
2683                    scheme = value;
2684                }
2685
2686                // source bounds
2687                else if (uri.startsWith("sourceBounds=", i)) {
2688                    intent.mSourceBounds = Rect.unflattenFromString(value);
2689                }
2690
2691                // extra
2692                else {
2693                    String key = Uri.decode(uri.substring(i + 2, eq));
2694                    // create Bundle if it doesn't already exist
2695                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2696                    Bundle b = intent.mExtras;
2697                    // add EXTRA
2698                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2699                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2700                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2701                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2702                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2703                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2704                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2705                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2706                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2707                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2708                }
2709
2710                // move to the next item
2711                i = semi + 1;
2712            }
2713
2714            if (data != null) {
2715                if (data.startsWith("intent:")) {
2716                    data = data.substring(7);
2717                    if (scheme != null) {
2718                        data = scheme + ':' + data;
2719                    }
2720                }
2721
2722                if (data.length() > 0) {
2723                    try {
2724                        intent.mData = Uri.parse(data);
2725                    } catch (IllegalArgumentException e) {
2726                        throw new URISyntaxException(uri, e.getMessage());
2727                    }
2728                }
2729            }
2730
2731            return intent;
2732
2733        } catch (IndexOutOfBoundsException e) {
2734            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2735        }
2736    }
2737
2738    public static Intent getIntentOld(String uri) throws URISyntaxException {
2739        Intent intent;
2740
2741        int i = uri.lastIndexOf('#');
2742        if (i >= 0) {
2743            String action = null;
2744            final int intentFragmentStart = i;
2745            boolean isIntentFragment = false;
2746
2747            i++;
2748
2749            if (uri.regionMatches(i, "action(", 0, 7)) {
2750                isIntentFragment = true;
2751                i += 7;
2752                int j = uri.indexOf(')', i);
2753                action = uri.substring(i, j);
2754                i = j + 1;
2755            }
2756
2757            intent = new Intent(action);
2758
2759            if (uri.regionMatches(i, "categories(", 0, 11)) {
2760                isIntentFragment = true;
2761                i += 11;
2762                int j = uri.indexOf(')', i);
2763                while (i < j) {
2764                    int sep = uri.indexOf('!', i);
2765                    if (sep < 0) sep = j;
2766                    if (i < sep) {
2767                        intent.addCategory(uri.substring(i, sep));
2768                    }
2769                    i = sep + 1;
2770                }
2771                i = j + 1;
2772            }
2773
2774            if (uri.regionMatches(i, "type(", 0, 5)) {
2775                isIntentFragment = true;
2776                i += 5;
2777                int j = uri.indexOf(')', i);
2778                intent.mType = uri.substring(i, j);
2779                i = j + 1;
2780            }
2781
2782            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2783                isIntentFragment = true;
2784                i += 12;
2785                int j = uri.indexOf(')', i);
2786                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2787                i = j + 1;
2788            }
2789
2790            if (uri.regionMatches(i, "component(", 0, 10)) {
2791                isIntentFragment = true;
2792                i += 10;
2793                int j = uri.indexOf(')', i);
2794                int sep = uri.indexOf('!', i);
2795                if (sep >= 0 && sep < j) {
2796                    String pkg = uri.substring(i, sep);
2797                    String cls = uri.substring(sep + 1, j);
2798                    intent.mComponent = new ComponentName(pkg, cls);
2799                }
2800                i = j + 1;
2801            }
2802
2803            if (uri.regionMatches(i, "extras(", 0, 7)) {
2804                isIntentFragment = true;
2805                i += 7;
2806
2807                final int closeParen = uri.indexOf(')', i);
2808                if (closeParen == -1) throw new URISyntaxException(uri,
2809                        "EXTRA missing trailing ')'", i);
2810
2811                while (i < closeParen) {
2812                    // fetch the key value
2813                    int j = uri.indexOf('=', i);
2814                    if (j <= i + 1 || i >= closeParen) {
2815                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2816                    }
2817                    char type = uri.charAt(i);
2818                    i++;
2819                    String key = uri.substring(i, j);
2820                    i = j + 1;
2821
2822                    // get type-value
2823                    j = uri.indexOf('!', i);
2824                    if (j == -1 || j >= closeParen) j = closeParen;
2825                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2826                    String value = uri.substring(i, j);
2827                    i = j;
2828
2829                    // create Bundle if it doesn't already exist
2830                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2831
2832                    // add item to bundle
2833                    try {
2834                        switch (type) {
2835                            case 'S':
2836                                intent.mExtras.putString(key, Uri.decode(value));
2837                                break;
2838                            case 'B':
2839                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2840                                break;
2841                            case 'b':
2842                                intent.mExtras.putByte(key, Byte.parseByte(value));
2843                                break;
2844                            case 'c':
2845                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2846                                break;
2847                            case 'd':
2848                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2849                                break;
2850                            case 'f':
2851                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2852                                break;
2853                            case 'i':
2854                                intent.mExtras.putInt(key, Integer.parseInt(value));
2855                                break;
2856                            case 'l':
2857                                intent.mExtras.putLong(key, Long.parseLong(value));
2858                                break;
2859                            case 's':
2860                                intent.mExtras.putShort(key, Short.parseShort(value));
2861                                break;
2862                            default:
2863                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2864                        }
2865                    } catch (NumberFormatException e) {
2866                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2867                    }
2868
2869                    char ch = uri.charAt(i);
2870                    if (ch == ')') break;
2871                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2872                    i++;
2873                }
2874            }
2875
2876            if (isIntentFragment) {
2877                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
2878            } else {
2879                intent.mData = Uri.parse(uri);
2880            }
2881
2882            if (intent.mAction == null) {
2883                // By default, if no action is specified, then use VIEW.
2884                intent.mAction = ACTION_VIEW;
2885            }
2886
2887        } else {
2888            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2889        }
2890
2891        return intent;
2892    }
2893
2894    /**
2895     * Retrieve the general action to be performed, such as
2896     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2897     * the information in the intent should be interpreted -- most importantly,
2898     * what to do with the data returned by {@link #getData}.
2899     *
2900     * @return The action of this intent or null if none is specified.
2901     *
2902     * @see #setAction
2903     */
2904    public String getAction() {
2905        return mAction;
2906    }
2907
2908    /**
2909     * Retrieve data this intent is operating on.  This URI specifies the name
2910     * of the data; often it uses the content: scheme, specifying data in a
2911     * content provider.  Other schemes may be handled by specific activities,
2912     * such as http: by the web browser.
2913     *
2914     * @return The URI of the data this intent is targeting or null.
2915     *
2916     * @see #getScheme
2917     * @see #setData
2918     */
2919    public Uri getData() {
2920        return mData;
2921    }
2922
2923    /**
2924     * The same as {@link #getData()}, but returns the URI as an encoded
2925     * String.
2926     */
2927    public String getDataString() {
2928        return mData != null ? mData.toString() : null;
2929    }
2930
2931    /**
2932     * Return the scheme portion of the intent's data.  If the data is null or
2933     * does not include a scheme, null is returned.  Otherwise, the scheme
2934     * prefix without the final ':' is returned, i.e. "http".
2935     *
2936     * <p>This is the same as calling getData().getScheme() (and checking for
2937     * null data).
2938     *
2939     * @return The scheme of this intent.
2940     *
2941     * @see #getData
2942     */
2943    public String getScheme() {
2944        return mData != null ? mData.getScheme() : null;
2945    }
2946
2947    /**
2948     * Retrieve any explicit MIME type included in the intent.  This is usually
2949     * null, as the type is determined by the intent data.
2950     *
2951     * @return If a type was manually set, it is returned; else null is
2952     *         returned.
2953     *
2954     * @see #resolveType(ContentResolver)
2955     * @see #setType
2956     */
2957    public String getType() {
2958        return mType;
2959    }
2960
2961    /**
2962     * Return the MIME data type of this intent.  If the type field is
2963     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2964     * the type of that data is returned.  If neither fields are set, a null is
2965     * returned.
2966     *
2967     * @return The MIME type of this intent.
2968     *
2969     * @see #getType
2970     * @see #resolveType(ContentResolver)
2971     */
2972    public String resolveType(Context context) {
2973        return resolveType(context.getContentResolver());
2974    }
2975
2976    /**
2977     * Return the MIME data type of this intent.  If the type field is
2978     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2979     * the type of that data is returned.  If neither fields are set, a null is
2980     * returned.
2981     *
2982     * @param resolver A ContentResolver that can be used to determine the MIME
2983     *                 type of the intent's data.
2984     *
2985     * @return The MIME type of this intent.
2986     *
2987     * @see #getType
2988     * @see #resolveType(Context)
2989     */
2990    public String resolveType(ContentResolver resolver) {
2991        if (mType != null) {
2992            return mType;
2993        }
2994        if (mData != null) {
2995            if ("content".equals(mData.getScheme())) {
2996                return resolver.getType(mData);
2997            }
2998        }
2999        return null;
3000    }
3001
3002    /**
3003     * Return the MIME data type of this intent, only if it will be needed for
3004     * intent resolution.  This is not generally useful for application code;
3005     * it is used by the frameworks for communicating with back-end system
3006     * services.
3007     *
3008     * @param resolver A ContentResolver that can be used to determine the MIME
3009     *                 type of the intent's data.
3010     *
3011     * @return The MIME type of this intent, or null if it is unknown or not
3012     *         needed.
3013     */
3014    public String resolveTypeIfNeeded(ContentResolver resolver) {
3015        if (mComponent != null) {
3016            return mType;
3017        }
3018        return resolveType(resolver);
3019    }
3020
3021    /**
3022     * Check if an category exists in the intent.
3023     *
3024     * @param category The category to check.
3025     *
3026     * @return boolean True if the intent contains the category, else false.
3027     *
3028     * @see #getCategories
3029     * @see #addCategory
3030     */
3031    public boolean hasCategory(String category) {
3032        return mCategories != null && mCategories.contains(category);
3033    }
3034
3035    /**
3036     * Return the set of all categories in the intent.  If there are no categories,
3037     * returns NULL.
3038     *
3039     * @return Set The set of categories you can examine.  Do not modify!
3040     *
3041     * @see #hasCategory
3042     * @see #addCategory
3043     */
3044    public Set<String> getCategories() {
3045        return mCategories;
3046    }
3047
3048    /**
3049     * Sets the ClassLoader that will be used when unmarshalling
3050     * any Parcelable values from the extras of this Intent.
3051     *
3052     * @param loader a ClassLoader, or null to use the default loader
3053     * at the time of unmarshalling.
3054     */
3055    public void setExtrasClassLoader(ClassLoader loader) {
3056        if (mExtras != null) {
3057            mExtras.setClassLoader(loader);
3058        }
3059    }
3060
3061    /**
3062     * Returns true if an extra value is associated with the given name.
3063     * @param name the extra's name
3064     * @return true if the given extra is present.
3065     */
3066    public boolean hasExtra(String name) {
3067        return mExtras != null && mExtras.containsKey(name);
3068    }
3069
3070    /**
3071     * Returns true if the Intent's extras contain a parcelled file descriptor.
3072     * @return true if the Intent contains a parcelled file descriptor.
3073     */
3074    public boolean hasFileDescriptors() {
3075        return mExtras != null && mExtras.hasFileDescriptors();
3076    }
3077
3078    /**
3079     * Retrieve extended data from the intent.
3080     *
3081     * @param name The name of the desired item.
3082     *
3083     * @return the value of an item that previously added with putExtra()
3084     * or null if none was found.
3085     *
3086     * @deprecated
3087     * @hide
3088     */
3089    @Deprecated
3090    public Object getExtra(String name) {
3091        return getExtra(name, null);
3092    }
3093
3094    /**
3095     * Retrieve extended data from the intent.
3096     *
3097     * @param name The name of the desired item.
3098     * @param defaultValue the value to be returned if no value of the desired
3099     * type is stored with the given name.
3100     *
3101     * @return the value of an item that previously added with putExtra()
3102     * or the default value if none was found.
3103     *
3104     * @see #putExtra(String, boolean)
3105     */
3106    public boolean getBooleanExtra(String name, boolean defaultValue) {
3107        return mExtras == null ? defaultValue :
3108            mExtras.getBoolean(name, defaultValue);
3109    }
3110
3111    /**
3112     * Retrieve extended data from the intent.
3113     *
3114     * @param name The name of the desired item.
3115     * @param defaultValue the value to be returned if no value of the desired
3116     * type is stored with the given name.
3117     *
3118     * @return the value of an item that previously added with putExtra()
3119     * or the default value if none was found.
3120     *
3121     * @see #putExtra(String, byte)
3122     */
3123    public byte getByteExtra(String name, byte defaultValue) {
3124        return mExtras == null ? defaultValue :
3125            mExtras.getByte(name, defaultValue);
3126    }
3127
3128    /**
3129     * Retrieve extended data from the intent.
3130     *
3131     * @param name The name of the desired item.
3132     * @param defaultValue the value to be returned if no value of the desired
3133     * type is stored with the given name.
3134     *
3135     * @return the value of an item that previously added with putExtra()
3136     * or the default value if none was found.
3137     *
3138     * @see #putExtra(String, short)
3139     */
3140    public short getShortExtra(String name, short defaultValue) {
3141        return mExtras == null ? defaultValue :
3142            mExtras.getShort(name, defaultValue);
3143    }
3144
3145    /**
3146     * Retrieve extended data from the intent.
3147     *
3148     * @param name The name of the desired item.
3149     * @param defaultValue the value to be returned if no value of the desired
3150     * type is stored with the given name.
3151     *
3152     * @return the value of an item that previously added with putExtra()
3153     * or the default value if none was found.
3154     *
3155     * @see #putExtra(String, char)
3156     */
3157    public char getCharExtra(String name, char defaultValue) {
3158        return mExtras == null ? defaultValue :
3159            mExtras.getChar(name, defaultValue);
3160    }
3161
3162    /**
3163     * Retrieve extended data from the intent.
3164     *
3165     * @param name The name of the desired item.
3166     * @param defaultValue the value to be returned if no value of the desired
3167     * type is stored with the given name.
3168     *
3169     * @return the value of an item that previously added with putExtra()
3170     * or the default value if none was found.
3171     *
3172     * @see #putExtra(String, int)
3173     */
3174    public int getIntExtra(String name, int defaultValue) {
3175        return mExtras == null ? defaultValue :
3176            mExtras.getInt(name, defaultValue);
3177    }
3178
3179    /**
3180     * Retrieve extended data from the intent.
3181     *
3182     * @param name The name of the desired item.
3183     * @param defaultValue the value to be returned if no value of the desired
3184     * type is stored with the given name.
3185     *
3186     * @return the value of an item that previously added with putExtra()
3187     * or the default value if none was found.
3188     *
3189     * @see #putExtra(String, long)
3190     */
3191    public long getLongExtra(String name, long defaultValue) {
3192        return mExtras == null ? defaultValue :
3193            mExtras.getLong(name, defaultValue);
3194    }
3195
3196    /**
3197     * Retrieve extended data from the intent.
3198     *
3199     * @param name The name of the desired item.
3200     * @param defaultValue the value to be returned if no value of the desired
3201     * type is stored with the given name.
3202     *
3203     * @return the value of an item that previously added with putExtra(),
3204     * or the default value if no such item is present
3205     *
3206     * @see #putExtra(String, float)
3207     */
3208    public float getFloatExtra(String name, float defaultValue) {
3209        return mExtras == null ? defaultValue :
3210            mExtras.getFloat(name, defaultValue);
3211    }
3212
3213    /**
3214     * Retrieve extended data from the intent.
3215     *
3216     * @param name The name of the desired item.
3217     * @param defaultValue the value to be returned if no value of the desired
3218     * type is stored with the given name.
3219     *
3220     * @return the value of an item that previously added with putExtra()
3221     * or the default value if none was found.
3222     *
3223     * @see #putExtra(String, double)
3224     */
3225    public double getDoubleExtra(String name, double defaultValue) {
3226        return mExtras == null ? defaultValue :
3227            mExtras.getDouble(name, defaultValue);
3228    }
3229
3230    /**
3231     * Retrieve extended data from the intent.
3232     *
3233     * @param name The name of the desired item.
3234     *
3235     * @return the value of an item that previously added with putExtra()
3236     * or null if no String value was found.
3237     *
3238     * @see #putExtra(String, String)
3239     */
3240    public String getStringExtra(String name) {
3241        return mExtras == null ? null : mExtras.getString(name);
3242    }
3243
3244    /**
3245     * Retrieve extended data from the intent.
3246     *
3247     * @param name The name of the desired item.
3248     *
3249     * @return the value of an item that previously added with putExtra()
3250     * or null if no CharSequence value was found.
3251     *
3252     * @see #putExtra(String, CharSequence)
3253     */
3254    public CharSequence getCharSequenceExtra(String name) {
3255        return mExtras == null ? null : mExtras.getCharSequence(name);
3256    }
3257
3258    /**
3259     * Retrieve extended data from the intent.
3260     *
3261     * @param name The name of the desired item.
3262     *
3263     * @return the value of an item that previously added with putExtra()
3264     * or null if no Parcelable value was found.
3265     *
3266     * @see #putExtra(String, Parcelable)
3267     */
3268    public <T extends Parcelable> T getParcelableExtra(String name) {
3269        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3270    }
3271
3272    /**
3273     * Retrieve extended data from the intent.
3274     *
3275     * @param name The name of the desired item.
3276     *
3277     * @return the value of an item that previously added with putExtra()
3278     * or null if no Parcelable[] value was found.
3279     *
3280     * @see #putExtra(String, Parcelable[])
3281     */
3282    public Parcelable[] getParcelableArrayExtra(String name) {
3283        return mExtras == null ? null : mExtras.getParcelableArray(name);
3284    }
3285
3286    /**
3287     * Retrieve extended data from the intent.
3288     *
3289     * @param name The name of the desired item.
3290     *
3291     * @return the value of an item that previously added with putExtra()
3292     * or null if no ArrayList<Parcelable> value was found.
3293     *
3294     * @see #putParcelableArrayListExtra(String, ArrayList)
3295     */
3296    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3297        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3298    }
3299
3300    /**
3301     * Retrieve extended data from the intent.
3302     *
3303     * @param name The name of the desired item.
3304     *
3305     * @return the value of an item that previously added with putExtra()
3306     * or null if no Serializable value was found.
3307     *
3308     * @see #putExtra(String, Serializable)
3309     */
3310    public Serializable getSerializableExtra(String name) {
3311        return mExtras == null ? null : mExtras.getSerializable(name);
3312    }
3313
3314    /**
3315     * Retrieve extended data from the intent.
3316     *
3317     * @param name The name of the desired item.
3318     *
3319     * @return the value of an item that previously added with putExtra()
3320     * or null if no ArrayList<Integer> value was found.
3321     *
3322     * @see #putIntegerArrayListExtra(String, ArrayList)
3323     */
3324    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3325        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3326    }
3327
3328    /**
3329     * Retrieve extended data from the intent.
3330     *
3331     * @param name The name of the desired item.
3332     *
3333     * @return the value of an item that previously added with putExtra()
3334     * or null if no ArrayList<String> value was found.
3335     *
3336     * @see #putStringArrayListExtra(String, ArrayList)
3337     */
3338    public ArrayList<String> getStringArrayListExtra(String name) {
3339        return mExtras == null ? null : mExtras.getStringArrayList(name);
3340    }
3341
3342    /**
3343     * Retrieve extended data from the intent.
3344     *
3345     * @param name The name of the desired item.
3346     *
3347     * @return the value of an item that previously added with putExtra()
3348     * or null if no boolean array value was found.
3349     *
3350     * @see #putExtra(String, boolean[])
3351     */
3352    public boolean[] getBooleanArrayExtra(String name) {
3353        return mExtras == null ? null : mExtras.getBooleanArray(name);
3354    }
3355
3356    /**
3357     * Retrieve extended data from the intent.
3358     *
3359     * @param name The name of the desired item.
3360     *
3361     * @return the value of an item that previously added with putExtra()
3362     * or null if no byte array value was found.
3363     *
3364     * @see #putExtra(String, byte[])
3365     */
3366    public byte[] getByteArrayExtra(String name) {
3367        return mExtras == null ? null : mExtras.getByteArray(name);
3368    }
3369
3370    /**
3371     * Retrieve extended data from the intent.
3372     *
3373     * @param name The name of the desired item.
3374     *
3375     * @return the value of an item that previously added with putExtra()
3376     * or null if no short array value was found.
3377     *
3378     * @see #putExtra(String, short[])
3379     */
3380    public short[] getShortArrayExtra(String name) {
3381        return mExtras == null ? null : mExtras.getShortArray(name);
3382    }
3383
3384    /**
3385     * Retrieve extended data from the intent.
3386     *
3387     * @param name The name of the desired item.
3388     *
3389     * @return the value of an item that previously added with putExtra()
3390     * or null if no char array value was found.
3391     *
3392     * @see #putExtra(String, char[])
3393     */
3394    public char[] getCharArrayExtra(String name) {
3395        return mExtras == null ? null : mExtras.getCharArray(name);
3396    }
3397
3398    /**
3399     * Retrieve extended data from the intent.
3400     *
3401     * @param name The name of the desired item.
3402     *
3403     * @return the value of an item that previously added with putExtra()
3404     * or null if no int array value was found.
3405     *
3406     * @see #putExtra(String, int[])
3407     */
3408    public int[] getIntArrayExtra(String name) {
3409        return mExtras == null ? null : mExtras.getIntArray(name);
3410    }
3411
3412    /**
3413     * Retrieve extended data from the intent.
3414     *
3415     * @param name The name of the desired item.
3416     *
3417     * @return the value of an item that previously added with putExtra()
3418     * or null if no long array value was found.
3419     *
3420     * @see #putExtra(String, long[])
3421     */
3422    public long[] getLongArrayExtra(String name) {
3423        return mExtras == null ? null : mExtras.getLongArray(name);
3424    }
3425
3426    /**
3427     * Retrieve extended data from the intent.
3428     *
3429     * @param name The name of the desired item.
3430     *
3431     * @return the value of an item that previously added with putExtra()
3432     * or null if no float array value was found.
3433     *
3434     * @see #putExtra(String, float[])
3435     */
3436    public float[] getFloatArrayExtra(String name) {
3437        return mExtras == null ? null : mExtras.getFloatArray(name);
3438    }
3439
3440    /**
3441     * Retrieve extended data from the intent.
3442     *
3443     * @param name The name of the desired item.
3444     *
3445     * @return the value of an item that previously added with putExtra()
3446     * or null if no double array value was found.
3447     *
3448     * @see #putExtra(String, double[])
3449     */
3450    public double[] getDoubleArrayExtra(String name) {
3451        return mExtras == null ? null : mExtras.getDoubleArray(name);
3452    }
3453
3454    /**
3455     * Retrieve extended data from the intent.
3456     *
3457     * @param name The name of the desired item.
3458     *
3459     * @return the value of an item that previously added with putExtra()
3460     * or null if no String array value was found.
3461     *
3462     * @see #putExtra(String, String[])
3463     */
3464    public String[] getStringArrayExtra(String name) {
3465        return mExtras == null ? null : mExtras.getStringArray(name);
3466    }
3467
3468    /**
3469     * Retrieve extended data from the intent.
3470     *
3471     * @param name The name of the desired item.
3472     *
3473     * @return the value of an item that previously added with putExtra()
3474     * or null if no Bundle value was found.
3475     *
3476     * @see #putExtra(String, Bundle)
3477     */
3478    public Bundle getBundleExtra(String name) {
3479        return mExtras == null ? null : mExtras.getBundle(name);
3480    }
3481
3482    /**
3483     * Retrieve extended data from the intent.
3484     *
3485     * @param name The name of the desired item.
3486     *
3487     * @return the value of an item that previously added with putExtra()
3488     * or null if no IBinder value was found.
3489     *
3490     * @see #putExtra(String, IBinder)
3491     *
3492     * @deprecated
3493     * @hide
3494     */
3495    @Deprecated
3496    public IBinder getIBinderExtra(String name) {
3497        return mExtras == null ? null : mExtras.getIBinder(name);
3498    }
3499
3500    /**
3501     * Retrieve extended data from the intent.
3502     *
3503     * @param name The name of the desired item.
3504     * @param defaultValue The default value to return in case no item is
3505     * associated with the key 'name'
3506     *
3507     * @return the value of an item that previously added with putExtra()
3508     * or defaultValue if none was found.
3509     *
3510     * @see #putExtra
3511     *
3512     * @deprecated
3513     * @hide
3514     */
3515    @Deprecated
3516    public Object getExtra(String name, Object defaultValue) {
3517        Object result = defaultValue;
3518        if (mExtras != null) {
3519            Object result2 = mExtras.get(name);
3520            if (result2 != null) {
3521                result = result2;
3522            }
3523        }
3524
3525        return result;
3526    }
3527
3528    /**
3529     * Retrieves a map of extended data from the intent.
3530     *
3531     * @return the map of all extras previously added with putExtra(),
3532     * or null if none have been added.
3533     */
3534    public Bundle getExtras() {
3535        return (mExtras != null)
3536                ? new Bundle(mExtras)
3537                : null;
3538    }
3539
3540    /**
3541     * Retrieve any special flags associated with this intent.  You will
3542     * normally just set them with {@link #setFlags} and let the system
3543     * take the appropriate action with them.
3544     *
3545     * @return int The currently set flags.
3546     *
3547     * @see #setFlags
3548     */
3549    public int getFlags() {
3550        return mFlags;
3551    }
3552
3553    /**
3554     * Retrieve the application package name this Intent is limited to.  When
3555     * resolving an Intent, if non-null this limits the resolution to only
3556     * components in the given application package.
3557     *
3558     * @return The name of the application package for the Intent.
3559     *
3560     * @see #resolveActivity
3561     * @see #setPackage
3562     */
3563    public String getPackage() {
3564        return mPackage;
3565    }
3566
3567    /**
3568     * Retrieve the concrete component associated with the intent.  When receiving
3569     * an intent, this is the component that was found to best handle it (that is,
3570     * yourself) and will always be non-null; in all other cases it will be
3571     * null unless explicitly set.
3572     *
3573     * @return The name of the application component to handle the intent.
3574     *
3575     * @see #resolveActivity
3576     * @see #setComponent
3577     */
3578    public ComponentName getComponent() {
3579        return mComponent;
3580    }
3581
3582    /**
3583     * Get the bounds of the sender of this intent, in screen coordinates.  This can be
3584     * used as a hint to the receiver for animations and the like.  Null means that there
3585     * is no source bounds.
3586     */
3587    public Rect getSourceBounds() {
3588        return mSourceBounds;
3589    }
3590
3591    /**
3592     * Return the Activity component that should be used to handle this intent.
3593     * The appropriate component is determined based on the information in the
3594     * intent, evaluated as follows:
3595     *
3596     * <p>If {@link #getComponent} returns an explicit class, that is returned
3597     * without any further consideration.
3598     *
3599     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3600     * category to be considered.
3601     *
3602     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3603     * action.
3604     *
3605     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3606     * this type.
3607     *
3608     * <p>If {@link #addCategory} has added any categories, the activity must
3609     * handle ALL of the categories specified.
3610     *
3611     * <p>If {@link #getPackage} is non-NULL, only activity components in
3612     * that application package will be considered.
3613     *
3614     * <p>If there are no activities that satisfy all of these conditions, a
3615     * null string is returned.
3616     *
3617     * <p>If multiple activities are found to satisfy the intent, the one with
3618     * the highest priority will be used.  If there are multiple activities
3619     * with the same priority, the system will either pick the best activity
3620     * based on user preference, or resolve to a system class that will allow
3621     * the user to pick an activity and forward from there.
3622     *
3623     * <p>This method is implemented simply by calling
3624     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3625     * true.</p>
3626     * <p> This API is called for you as part of starting an activity from an
3627     * intent.  You do not normally need to call it yourself.</p>
3628     *
3629     * @param pm The package manager with which to resolve the Intent.
3630     *
3631     * @return Name of the component implementing an activity that can
3632     *         display the intent.
3633     *
3634     * @see #setComponent
3635     * @see #getComponent
3636     * @see #resolveActivityInfo
3637     */
3638    public ComponentName resolveActivity(PackageManager pm) {
3639        if (mComponent != null) {
3640            return mComponent;
3641        }
3642
3643        ResolveInfo info = pm.resolveActivity(
3644            this, PackageManager.MATCH_DEFAULT_ONLY);
3645        if (info != null) {
3646            return new ComponentName(
3647                    info.activityInfo.applicationInfo.packageName,
3648                    info.activityInfo.name);
3649        }
3650
3651        return null;
3652    }
3653
3654    /**
3655     * Resolve the Intent into an {@link ActivityInfo}
3656     * describing the activity that should execute the intent.  Resolution
3657     * follows the same rules as described for {@link #resolveActivity}, but
3658     * you get back the completely information about the resolved activity
3659     * instead of just its class name.
3660     *
3661     * @param pm The package manager with which to resolve the Intent.
3662     * @param flags Addition information to retrieve as per
3663     * {@link PackageManager#getActivityInfo(ComponentName, int)
3664     * PackageManager.getActivityInfo()}.
3665     *
3666     * @return PackageManager.ActivityInfo
3667     *
3668     * @see #resolveActivity
3669     */
3670    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3671        ActivityInfo ai = null;
3672        if (mComponent != null) {
3673            try {
3674                ai = pm.getActivityInfo(mComponent, flags);
3675            } catch (PackageManager.NameNotFoundException e) {
3676                // ignore
3677            }
3678        } else {
3679            ResolveInfo info = pm.resolveActivity(
3680                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
3681            if (info != null) {
3682                ai = info.activityInfo;
3683            }
3684        }
3685
3686        return ai;
3687    }
3688
3689    /**
3690     * Set the general action to be performed.
3691     *
3692     * @param action An action name, such as ACTION_VIEW.  Application-specific
3693     *               actions should be prefixed with the vendor's package name.
3694     *
3695     * @return Returns the same Intent object, for chaining multiple calls
3696     * into a single statement.
3697     *
3698     * @see #getAction
3699     */
3700    public Intent setAction(String action) {
3701        mAction = action;
3702        return this;
3703    }
3704
3705    /**
3706     * Set the data this intent is operating on.  This method automatically
3707     * clears any type that was previously set by {@link #setType}.
3708     *
3709     * <p><em>Note: scheme and host name matching in the Android framework is
3710     * case-sensitive, unlike the formal RFC.  As a result,
3711     * you should always ensure that you write your Uri with these elements
3712     * using lower case letters, and normalize any Uris you receive from
3713     * outside of Android to ensure the scheme and host is lower case.</em></p>
3714     *
3715     * @param data The URI of the data this intent is now targeting.
3716     *
3717     * @return Returns the same Intent object, for chaining multiple calls
3718     * into a single statement.
3719     *
3720     * @see #getData
3721     * @see #setType
3722     * @see #setDataAndType
3723     */
3724    public Intent setData(Uri data) {
3725        mData = data;
3726        mType = null;
3727        return this;
3728    }
3729
3730    /**
3731     * Set an explicit MIME data type.  This is used to create intents that
3732     * only specify a type and not data, for example to indicate the type of
3733     * data to return.  This method automatically clears any data that was
3734     * previously set by {@link #setData}.
3735     *
3736     * <p><em>Note: MIME type matching in the Android framework is
3737     * case-sensitive, unlike formal RFC MIME types.  As a result,
3738     * you should always write your MIME types with lower case letters,
3739     * and any MIME types you receive from outside of Android should be
3740     * converted to lower case before supplying them here.</em></p>
3741     *
3742     * @param type The MIME type of the data being handled by this intent.
3743     *
3744     * @return Returns the same Intent object, for chaining multiple calls
3745     * into a single statement.
3746     *
3747     * @see #getType
3748     * @see #setData
3749     * @see #setDataAndType
3750     */
3751    public Intent setType(String type) {
3752        mData = null;
3753        mType = type;
3754        return this;
3755    }
3756
3757    /**
3758     * (Usually optional) Set the data for the intent along with an explicit
3759     * MIME data type.  This method should very rarely be used -- it allows you
3760     * to override the MIME type that would ordinarily be inferred from the
3761     * data with your own type given here.
3762     *
3763     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
3764     * Android framework is case-sensitive, unlike the formal RFC definitions.
3765     * As a result, you should always write these elements with lower case letters,
3766     * and normalize any MIME types or Uris you receive from
3767     * outside of Android to ensure these elements are lower case before
3768     * supplying them here.</em></p>
3769     *
3770     * @param data The URI of the data this intent is now targeting.
3771     * @param type The MIME type of the data being handled by this intent.
3772     *
3773     * @return Returns the same Intent object, for chaining multiple calls
3774     * into a single statement.
3775     *
3776     * @see #setData
3777     * @see #setType
3778     */
3779    public Intent setDataAndType(Uri data, String type) {
3780        mData = data;
3781        mType = type;
3782        return this;
3783    }
3784
3785    /**
3786     * Add a new category to the intent.  Categories provide additional detail
3787     * about the action the intent is perform.  When resolving an intent, only
3788     * activities that provide <em>all</em> of the requested categories will be
3789     * used.
3790     *
3791     * @param category The desired category.  This can be either one of the
3792     *               predefined Intent categories, or a custom category in your own
3793     *               namespace.
3794     *
3795     * @return Returns the same Intent object, for chaining multiple calls
3796     * into a single statement.
3797     *
3798     * @see #hasCategory
3799     * @see #removeCategory
3800     */
3801    public Intent addCategory(String category) {
3802        if (mCategories == null) {
3803            mCategories = new HashSet<String>();
3804        }
3805        mCategories.add(category);
3806        return this;
3807    }
3808
3809    /**
3810     * Remove an category from an intent.
3811     *
3812     * @param category The category to remove.
3813     *
3814     * @see #addCategory
3815     */
3816    public void removeCategory(String category) {
3817        if (mCategories != null) {
3818            mCategories.remove(category);
3819            if (mCategories.size() == 0) {
3820                mCategories = null;
3821            }
3822        }
3823    }
3824
3825    /**
3826     * Add extended data to the intent.  The name must include a package
3827     * prefix, for example the app com.android.contacts would use names
3828     * like "com.android.contacts.ShowAll".
3829     *
3830     * @param name The name of the extra data, with package prefix.
3831     * @param value The boolean data value.
3832     *
3833     * @return Returns the same Intent object, for chaining multiple calls
3834     * into a single statement.
3835     *
3836     * @see #putExtras
3837     * @see #removeExtra
3838     * @see #getBooleanExtra(String, boolean)
3839     */
3840    public Intent putExtra(String name, boolean value) {
3841        if (mExtras == null) {
3842            mExtras = new Bundle();
3843        }
3844        mExtras.putBoolean(name, value);
3845        return this;
3846    }
3847
3848    /**
3849     * Add extended data to the intent.  The name must include a package
3850     * prefix, for example the app com.android.contacts would use names
3851     * like "com.android.contacts.ShowAll".
3852     *
3853     * @param name The name of the extra data, with package prefix.
3854     * @param value The byte data value.
3855     *
3856     * @return Returns the same Intent object, for chaining multiple calls
3857     * into a single statement.
3858     *
3859     * @see #putExtras
3860     * @see #removeExtra
3861     * @see #getByteExtra(String, byte)
3862     */
3863    public Intent putExtra(String name, byte value) {
3864        if (mExtras == null) {
3865            mExtras = new Bundle();
3866        }
3867        mExtras.putByte(name, value);
3868        return this;
3869    }
3870
3871    /**
3872     * Add extended data to the intent.  The name must include a package
3873     * prefix, for example the app com.android.contacts would use names
3874     * like "com.android.contacts.ShowAll".
3875     *
3876     * @param name The name of the extra data, with package prefix.
3877     * @param value The char data value.
3878     *
3879     * @return Returns the same Intent object, for chaining multiple calls
3880     * into a single statement.
3881     *
3882     * @see #putExtras
3883     * @see #removeExtra
3884     * @see #getCharExtra(String, char)
3885     */
3886    public Intent putExtra(String name, char value) {
3887        if (mExtras == null) {
3888            mExtras = new Bundle();
3889        }
3890        mExtras.putChar(name, value);
3891        return this;
3892    }
3893
3894    /**
3895     * Add extended data to the intent.  The name must include a package
3896     * prefix, for example the app com.android.contacts would use names
3897     * like "com.android.contacts.ShowAll".
3898     *
3899     * @param name The name of the extra data, with package prefix.
3900     * @param value The short data value.
3901     *
3902     * @return Returns the same Intent object, for chaining multiple calls
3903     * into a single statement.
3904     *
3905     * @see #putExtras
3906     * @see #removeExtra
3907     * @see #getShortExtra(String, short)
3908     */
3909    public Intent putExtra(String name, short value) {
3910        if (mExtras == null) {
3911            mExtras = new Bundle();
3912        }
3913        mExtras.putShort(name, value);
3914        return this;
3915    }
3916
3917    /**
3918     * Add extended data to the intent.  The name must include a package
3919     * prefix, for example the app com.android.contacts would use names
3920     * like "com.android.contacts.ShowAll".
3921     *
3922     * @param name The name of the extra data, with package prefix.
3923     * @param value The integer data value.
3924     *
3925     * @return Returns the same Intent object, for chaining multiple calls
3926     * into a single statement.
3927     *
3928     * @see #putExtras
3929     * @see #removeExtra
3930     * @see #getIntExtra(String, int)
3931     */
3932    public Intent putExtra(String name, int value) {
3933        if (mExtras == null) {
3934            mExtras = new Bundle();
3935        }
3936        mExtras.putInt(name, value);
3937        return this;
3938    }
3939
3940    /**
3941     * Add extended data to the intent.  The name must include a package
3942     * prefix, for example the app com.android.contacts would use names
3943     * like "com.android.contacts.ShowAll".
3944     *
3945     * @param name The name of the extra data, with package prefix.
3946     * @param value The long data value.
3947     *
3948     * @return Returns the same Intent object, for chaining multiple calls
3949     * into a single statement.
3950     *
3951     * @see #putExtras
3952     * @see #removeExtra
3953     * @see #getLongExtra(String, long)
3954     */
3955    public Intent putExtra(String name, long value) {
3956        if (mExtras == null) {
3957            mExtras = new Bundle();
3958        }
3959        mExtras.putLong(name, value);
3960        return this;
3961    }
3962
3963    /**
3964     * Add extended data to the intent.  The name must include a package
3965     * prefix, for example the app com.android.contacts would use names
3966     * like "com.android.contacts.ShowAll".
3967     *
3968     * @param name The name of the extra data, with package prefix.
3969     * @param value The float data value.
3970     *
3971     * @return Returns the same Intent object, for chaining multiple calls
3972     * into a single statement.
3973     *
3974     * @see #putExtras
3975     * @see #removeExtra
3976     * @see #getFloatExtra(String, float)
3977     */
3978    public Intent putExtra(String name, float value) {
3979        if (mExtras == null) {
3980            mExtras = new Bundle();
3981        }
3982        mExtras.putFloat(name, value);
3983        return this;
3984    }
3985
3986    /**
3987     * Add extended data to the intent.  The name must include a package
3988     * prefix, for example the app com.android.contacts would use names
3989     * like "com.android.contacts.ShowAll".
3990     *
3991     * @param name The name of the extra data, with package prefix.
3992     * @param value The double data value.
3993     *
3994     * @return Returns the same Intent object, for chaining multiple calls
3995     * into a single statement.
3996     *
3997     * @see #putExtras
3998     * @see #removeExtra
3999     * @see #getDoubleExtra(String, double)
4000     */
4001    public Intent putExtra(String name, double value) {
4002        if (mExtras == null) {
4003            mExtras = new Bundle();
4004        }
4005        mExtras.putDouble(name, value);
4006        return this;
4007    }
4008
4009    /**
4010     * Add extended data to the intent.  The name must include a package
4011     * prefix, for example the app com.android.contacts would use names
4012     * like "com.android.contacts.ShowAll".
4013     *
4014     * @param name The name of the extra data, with package prefix.
4015     * @param value The String data value.
4016     *
4017     * @return Returns the same Intent object, for chaining multiple calls
4018     * into a single statement.
4019     *
4020     * @see #putExtras
4021     * @see #removeExtra
4022     * @see #getStringExtra(String)
4023     */
4024    public Intent putExtra(String name, String value) {
4025        if (mExtras == null) {
4026            mExtras = new Bundle();
4027        }
4028        mExtras.putString(name, value);
4029        return this;
4030    }
4031
4032    /**
4033     * Add extended data to the intent.  The name must include a package
4034     * prefix, for example the app com.android.contacts would use names
4035     * like "com.android.contacts.ShowAll".
4036     *
4037     * @param name The name of the extra data, with package prefix.
4038     * @param value The CharSequence data value.
4039     *
4040     * @return Returns the same Intent object, for chaining multiple calls
4041     * into a single statement.
4042     *
4043     * @see #putExtras
4044     * @see #removeExtra
4045     * @see #getCharSequenceExtra(String)
4046     */
4047    public Intent putExtra(String name, CharSequence value) {
4048        if (mExtras == null) {
4049            mExtras = new Bundle();
4050        }
4051        mExtras.putCharSequence(name, value);
4052        return this;
4053    }
4054
4055    /**
4056     * Add extended data to the intent.  The name must include a package
4057     * prefix, for example the app com.android.contacts would use names
4058     * like "com.android.contacts.ShowAll".
4059     *
4060     * @param name The name of the extra data, with package prefix.
4061     * @param value The Parcelable data value.
4062     *
4063     * @return Returns the same Intent object, for chaining multiple calls
4064     * into a single statement.
4065     *
4066     * @see #putExtras
4067     * @see #removeExtra
4068     * @see #getParcelableExtra(String)
4069     */
4070    public Intent putExtra(String name, Parcelable value) {
4071        if (mExtras == null) {
4072            mExtras = new Bundle();
4073        }
4074        mExtras.putParcelable(name, value);
4075        return this;
4076    }
4077
4078    /**
4079     * Add extended data to the intent.  The name must include a package
4080     * prefix, for example the app com.android.contacts would use names
4081     * like "com.android.contacts.ShowAll".
4082     *
4083     * @param name The name of the extra data, with package prefix.
4084     * @param value The Parcelable[] data value.
4085     *
4086     * @return Returns the same Intent object, for chaining multiple calls
4087     * into a single statement.
4088     *
4089     * @see #putExtras
4090     * @see #removeExtra
4091     * @see #getParcelableArrayExtra(String)
4092     */
4093    public Intent putExtra(String name, Parcelable[] value) {
4094        if (mExtras == null) {
4095            mExtras = new Bundle();
4096        }
4097        mExtras.putParcelableArray(name, value);
4098        return this;
4099    }
4100
4101    /**
4102     * Add extended data to the intent.  The name must include a package
4103     * prefix, for example the app com.android.contacts would use names
4104     * like "com.android.contacts.ShowAll".
4105     *
4106     * @param name The name of the extra data, with package prefix.
4107     * @param value The ArrayList<Parcelable> data value.
4108     *
4109     * @return Returns the same Intent object, for chaining multiple calls
4110     * into a single statement.
4111     *
4112     * @see #putExtras
4113     * @see #removeExtra
4114     * @see #getParcelableArrayListExtra(String)
4115     */
4116    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
4117        if (mExtras == null) {
4118            mExtras = new Bundle();
4119        }
4120        mExtras.putParcelableArrayList(name, value);
4121        return this;
4122    }
4123
4124    /**
4125     * Add extended data to the intent.  The name must include a package
4126     * prefix, for example the app com.android.contacts would use names
4127     * like "com.android.contacts.ShowAll".
4128     *
4129     * @param name The name of the extra data, with package prefix.
4130     * @param value The ArrayList<Integer> data value.
4131     *
4132     * @return Returns the same Intent object, for chaining multiple calls
4133     * into a single statement.
4134     *
4135     * @see #putExtras
4136     * @see #removeExtra
4137     * @see #getIntegerArrayListExtra(String)
4138     */
4139    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
4140        if (mExtras == null) {
4141            mExtras = new Bundle();
4142        }
4143        mExtras.putIntegerArrayList(name, value);
4144        return this;
4145    }
4146
4147    /**
4148     * Add extended data to the intent.  The name must include a package
4149     * prefix, for example the app com.android.contacts would use names
4150     * like "com.android.contacts.ShowAll".
4151     *
4152     * @param name The name of the extra data, with package prefix.
4153     * @param value The ArrayList<String> data value.
4154     *
4155     * @return Returns the same Intent object, for chaining multiple calls
4156     * into a single statement.
4157     *
4158     * @see #putExtras
4159     * @see #removeExtra
4160     * @see #getStringArrayListExtra(String)
4161     */
4162    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
4163        if (mExtras == null) {
4164            mExtras = new Bundle();
4165        }
4166        mExtras.putStringArrayList(name, value);
4167        return this;
4168    }
4169
4170    /**
4171     * Add extended data to the intent.  The name must include a package
4172     * prefix, for example the app com.android.contacts would use names
4173     * like "com.android.contacts.ShowAll".
4174     *
4175     * @param name The name of the extra data, with package prefix.
4176     * @param value The Serializable data value.
4177     *
4178     * @return Returns the same Intent object, for chaining multiple calls
4179     * into a single statement.
4180     *
4181     * @see #putExtras
4182     * @see #removeExtra
4183     * @see #getSerializableExtra(String)
4184     */
4185    public Intent putExtra(String name, Serializable value) {
4186        if (mExtras == null) {
4187            mExtras = new Bundle();
4188        }
4189        mExtras.putSerializable(name, value);
4190        return this;
4191    }
4192
4193    /**
4194     * Add extended data to the intent.  The name must include a package
4195     * prefix, for example the app com.android.contacts would use names
4196     * like "com.android.contacts.ShowAll".
4197     *
4198     * @param name The name of the extra data, with package prefix.
4199     * @param value The boolean array data value.
4200     *
4201     * @return Returns the same Intent object, for chaining multiple calls
4202     * into a single statement.
4203     *
4204     * @see #putExtras
4205     * @see #removeExtra
4206     * @see #getBooleanArrayExtra(String)
4207     */
4208    public Intent putExtra(String name, boolean[] value) {
4209        if (mExtras == null) {
4210            mExtras = new Bundle();
4211        }
4212        mExtras.putBooleanArray(name, value);
4213        return this;
4214    }
4215
4216    /**
4217     * Add extended data to the intent.  The name must include a package
4218     * prefix, for example the app com.android.contacts would use names
4219     * like "com.android.contacts.ShowAll".
4220     *
4221     * @param name The name of the extra data, with package prefix.
4222     * @param value The byte array data value.
4223     *
4224     * @return Returns the same Intent object, for chaining multiple calls
4225     * into a single statement.
4226     *
4227     * @see #putExtras
4228     * @see #removeExtra
4229     * @see #getByteArrayExtra(String)
4230     */
4231    public Intent putExtra(String name, byte[] value) {
4232        if (mExtras == null) {
4233            mExtras = new Bundle();
4234        }
4235        mExtras.putByteArray(name, value);
4236        return this;
4237    }
4238
4239    /**
4240     * Add extended data to the intent.  The name must include a package
4241     * prefix, for example the app com.android.contacts would use names
4242     * like "com.android.contacts.ShowAll".
4243     *
4244     * @param name The name of the extra data, with package prefix.
4245     * @param value The short array data value.
4246     *
4247     * @return Returns the same Intent object, for chaining multiple calls
4248     * into a single statement.
4249     *
4250     * @see #putExtras
4251     * @see #removeExtra
4252     * @see #getShortArrayExtra(String)
4253     */
4254    public Intent putExtra(String name, short[] value) {
4255        if (mExtras == null) {
4256            mExtras = new Bundle();
4257        }
4258        mExtras.putShortArray(name, value);
4259        return this;
4260    }
4261
4262    /**
4263     * Add extended data to the intent.  The name must include a package
4264     * prefix, for example the app com.android.contacts would use names
4265     * like "com.android.contacts.ShowAll".
4266     *
4267     * @param name The name of the extra data, with package prefix.
4268     * @param value The char array data value.
4269     *
4270     * @return Returns the same Intent object, for chaining multiple calls
4271     * into a single statement.
4272     *
4273     * @see #putExtras
4274     * @see #removeExtra
4275     * @see #getCharArrayExtra(String)
4276     */
4277    public Intent putExtra(String name, char[] value) {
4278        if (mExtras == null) {
4279            mExtras = new Bundle();
4280        }
4281        mExtras.putCharArray(name, value);
4282        return this;
4283    }
4284
4285    /**
4286     * Add extended data to the intent.  The name must include a package
4287     * prefix, for example the app com.android.contacts would use names
4288     * like "com.android.contacts.ShowAll".
4289     *
4290     * @param name The name of the extra data, with package prefix.
4291     * @param value The int array data value.
4292     *
4293     * @return Returns the same Intent object, for chaining multiple calls
4294     * into a single statement.
4295     *
4296     * @see #putExtras
4297     * @see #removeExtra
4298     * @see #getIntArrayExtra(String)
4299     */
4300    public Intent putExtra(String name, int[] value) {
4301        if (mExtras == null) {
4302            mExtras = new Bundle();
4303        }
4304        mExtras.putIntArray(name, value);
4305        return this;
4306    }
4307
4308    /**
4309     * Add extended data to the intent.  The name must include a package
4310     * prefix, for example the app com.android.contacts would use names
4311     * like "com.android.contacts.ShowAll".
4312     *
4313     * @param name The name of the extra data, with package prefix.
4314     * @param value The byte array data value.
4315     *
4316     * @return Returns the same Intent object, for chaining multiple calls
4317     * into a single statement.
4318     *
4319     * @see #putExtras
4320     * @see #removeExtra
4321     * @see #getLongArrayExtra(String)
4322     */
4323    public Intent putExtra(String name, long[] value) {
4324        if (mExtras == null) {
4325            mExtras = new Bundle();
4326        }
4327        mExtras.putLongArray(name, value);
4328        return this;
4329    }
4330
4331    /**
4332     * Add extended data to the intent.  The name must include a package
4333     * prefix, for example the app com.android.contacts would use names
4334     * like "com.android.contacts.ShowAll".
4335     *
4336     * @param name The name of the extra data, with package prefix.
4337     * @param value The float array data value.
4338     *
4339     * @return Returns the same Intent object, for chaining multiple calls
4340     * into a single statement.
4341     *
4342     * @see #putExtras
4343     * @see #removeExtra
4344     * @see #getFloatArrayExtra(String)
4345     */
4346    public Intent putExtra(String name, float[] value) {
4347        if (mExtras == null) {
4348            mExtras = new Bundle();
4349        }
4350        mExtras.putFloatArray(name, value);
4351        return this;
4352    }
4353
4354    /**
4355     * Add extended data to the intent.  The name must include a package
4356     * prefix, for example the app com.android.contacts would use names
4357     * like "com.android.contacts.ShowAll".
4358     *
4359     * @param name The name of the extra data, with package prefix.
4360     * @param value The double array data value.
4361     *
4362     * @return Returns the same Intent object, for chaining multiple calls
4363     * into a single statement.
4364     *
4365     * @see #putExtras
4366     * @see #removeExtra
4367     * @see #getDoubleArrayExtra(String)
4368     */
4369    public Intent putExtra(String name, double[] value) {
4370        if (mExtras == null) {
4371            mExtras = new Bundle();
4372        }
4373        mExtras.putDoubleArray(name, value);
4374        return this;
4375    }
4376
4377    /**
4378     * Add extended data to the intent.  The name must include a package
4379     * prefix, for example the app com.android.contacts would use names
4380     * like "com.android.contacts.ShowAll".
4381     *
4382     * @param name The name of the extra data, with package prefix.
4383     * @param value The String array data value.
4384     *
4385     * @return Returns the same Intent object, for chaining multiple calls
4386     * into a single statement.
4387     *
4388     * @see #putExtras
4389     * @see #removeExtra
4390     * @see #getStringArrayExtra(String)
4391     */
4392    public Intent putExtra(String name, String[] value) {
4393        if (mExtras == null) {
4394            mExtras = new Bundle();
4395        }
4396        mExtras.putStringArray(name, value);
4397        return this;
4398    }
4399
4400    /**
4401     * Add extended data to the intent.  The name must include a package
4402     * prefix, for example the app com.android.contacts would use names
4403     * like "com.android.contacts.ShowAll".
4404     *
4405     * @param name The name of the extra data, with package prefix.
4406     * @param value The Bundle data value.
4407     *
4408     * @return Returns the same Intent object, for chaining multiple calls
4409     * into a single statement.
4410     *
4411     * @see #putExtras
4412     * @see #removeExtra
4413     * @see #getBundleExtra(String)
4414     */
4415    public Intent putExtra(String name, Bundle value) {
4416        if (mExtras == null) {
4417            mExtras = new Bundle();
4418        }
4419        mExtras.putBundle(name, value);
4420        return this;
4421    }
4422
4423    /**
4424     * Add extended data to the intent.  The name must include a package
4425     * prefix, for example the app com.android.contacts would use names
4426     * like "com.android.contacts.ShowAll".
4427     *
4428     * @param name The name of the extra data, with package prefix.
4429     * @param value The IBinder data value.
4430     *
4431     * @return Returns the same Intent object, for chaining multiple calls
4432     * into a single statement.
4433     *
4434     * @see #putExtras
4435     * @see #removeExtra
4436     * @see #getIBinderExtra(String)
4437     *
4438     * @deprecated
4439     * @hide
4440     */
4441    @Deprecated
4442    public Intent putExtra(String name, IBinder value) {
4443        if (mExtras == null) {
4444            mExtras = new Bundle();
4445        }
4446        mExtras.putIBinder(name, value);
4447        return this;
4448    }
4449
4450    /**
4451     * Copy all extras in 'src' in to this intent.
4452     *
4453     * @param src Contains the extras to copy.
4454     *
4455     * @see #putExtra
4456     */
4457    public Intent putExtras(Intent src) {
4458        if (src.mExtras != null) {
4459            if (mExtras == null) {
4460                mExtras = new Bundle(src.mExtras);
4461            } else {
4462                mExtras.putAll(src.mExtras);
4463            }
4464        }
4465        return this;
4466    }
4467
4468    /**
4469     * Add a set of extended data to the intent.  The keys must include a package
4470     * prefix, for example the app com.android.contacts would use names
4471     * like "com.android.contacts.ShowAll".
4472     *
4473     * @param extras The Bundle of extras to add to this intent.
4474     *
4475     * @see #putExtra
4476     * @see #removeExtra
4477     */
4478    public Intent putExtras(Bundle extras) {
4479        if (mExtras == null) {
4480            mExtras = new Bundle();
4481        }
4482        mExtras.putAll(extras);
4483        return this;
4484    }
4485
4486    /**
4487     * Completely replace the extras in the Intent with the extras in the
4488     * given Intent.
4489     *
4490     * @param src The exact extras contained in this Intent are copied
4491     * into the target intent, replacing any that were previously there.
4492     */
4493    public Intent replaceExtras(Intent src) {
4494        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4495        return this;
4496    }
4497
4498    /**
4499     * Completely replace the extras in the Intent with the given Bundle of
4500     * extras.
4501     *
4502     * @param extras The new set of extras in the Intent, or null to erase
4503     * all extras.
4504     */
4505    public Intent replaceExtras(Bundle extras) {
4506        mExtras = extras != null ? new Bundle(extras) : null;
4507        return this;
4508    }
4509
4510    /**
4511     * Remove extended data from the intent.
4512     *
4513     * @see #putExtra
4514     */
4515    public void removeExtra(String name) {
4516        if (mExtras != null) {
4517            mExtras.remove(name);
4518            if (mExtras.size() == 0) {
4519                mExtras = null;
4520            }
4521        }
4522    }
4523
4524    /**
4525     * Set special flags controlling how this intent is handled.  Most values
4526     * here depend on the type of component being executed by the Intent,
4527     * specifically the FLAG_ACTIVITY_* flags are all for use with
4528     * {@link Context#startActivity Context.startActivity()} and the
4529     * FLAG_RECEIVER_* flags are all for use with
4530     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4531     *
4532     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4533     * Activities and Tasks</a> documentation for important information on how some of these options impact
4534     * the behavior of your application.
4535     *
4536     * @param flags The desired flags.
4537     *
4538     * @return Returns the same Intent object, for chaining multiple calls
4539     * into a single statement.
4540     *
4541     * @see #getFlags
4542     * @see #addFlags
4543     *
4544     * @see #FLAG_GRANT_READ_URI_PERMISSION
4545     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4546     * @see #FLAG_DEBUG_LOG_RESOLUTION
4547     * @see #FLAG_FROM_BACKGROUND
4548     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4549     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4550     * @see #FLAG_ACTIVITY_CLEAR_TOP
4551     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4552     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4553     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4554     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4555     * @see #FLAG_ACTIVITY_NEW_TASK
4556     * @see #FLAG_ACTIVITY_NO_HISTORY
4557     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4558     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4559     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4560     * @see #FLAG_ACTIVITY_SINGLE_TOP
4561     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4562     */
4563    public Intent setFlags(int flags) {
4564        mFlags = flags;
4565        return this;
4566    }
4567
4568    /**
4569     * Add additional flags to the intent (or with existing flags
4570     * value).
4571     *
4572     * @param flags The new flags to set.
4573     *
4574     * @return Returns the same Intent object, for chaining multiple calls
4575     * into a single statement.
4576     *
4577     * @see #setFlags
4578     */
4579    public Intent addFlags(int flags) {
4580        mFlags |= flags;
4581        return this;
4582    }
4583
4584    /**
4585     * (Usually optional) Set an explicit application package name that limits
4586     * the components this Intent will resolve to.  If left to the default
4587     * value of null, all components in all applications will considered.
4588     * If non-null, the Intent can only match the components in the given
4589     * application package.
4590     *
4591     * @param packageName The name of the application package to handle the
4592     * intent, or null to allow any application package.
4593     *
4594     * @return Returns the same Intent object, for chaining multiple calls
4595     * into a single statement.
4596     *
4597     * @see #getPackage
4598     * @see #resolveActivity
4599     */
4600    public Intent setPackage(String packageName) {
4601        mPackage = packageName;
4602        return this;
4603    }
4604
4605    /**
4606     * (Usually optional) Explicitly set the component to handle the intent.
4607     * If left with the default value of null, the system will determine the
4608     * appropriate class to use based on the other fields (action, data,
4609     * type, categories) in the Intent.  If this class is defined, the
4610     * specified class will always be used regardless of the other fields.  You
4611     * should only set this value when you know you absolutely want a specific
4612     * class to be used; otherwise it is better to let the system find the
4613     * appropriate class so that you will respect the installed applications
4614     * and user preferences.
4615     *
4616     * @param component The name of the application component to handle the
4617     * intent, or null to let the system find one for you.
4618     *
4619     * @return Returns the same Intent object, for chaining multiple calls
4620     * into a single statement.
4621     *
4622     * @see #setClass
4623     * @see #setClassName(Context, String)
4624     * @see #setClassName(String, String)
4625     * @see #getComponent
4626     * @see #resolveActivity
4627     */
4628    public Intent setComponent(ComponentName component) {
4629        mComponent = component;
4630        return this;
4631    }
4632
4633    /**
4634     * Convenience for calling {@link #setComponent} with an
4635     * explicit class name.
4636     *
4637     * @param packageContext A Context of the application package implementing
4638     * this class.
4639     * @param className The name of a class inside of the application package
4640     * that will be used as the component for this Intent.
4641     *
4642     * @return Returns the same Intent object, for chaining multiple calls
4643     * into a single statement.
4644     *
4645     * @see #setComponent
4646     * @see #setClass
4647     */
4648    public Intent setClassName(Context packageContext, String className) {
4649        mComponent = new ComponentName(packageContext, className);
4650        return this;
4651    }
4652
4653    /**
4654     * Convenience for calling {@link #setComponent} with an
4655     * explicit application package name and class name.
4656     *
4657     * @param packageName The name of the package implementing the desired
4658     * component.
4659     * @param className The name of a class inside of the application package
4660     * that will be used as the component for this Intent.
4661     *
4662     * @return Returns the same Intent object, for chaining multiple calls
4663     * into a single statement.
4664     *
4665     * @see #setComponent
4666     * @see #setClass
4667     */
4668    public Intent setClassName(String packageName, String className) {
4669        mComponent = new ComponentName(packageName, className);
4670        return this;
4671    }
4672
4673    /**
4674     * Convenience for calling {@link #setComponent(ComponentName)} with the
4675     * name returned by a {@link Class} object.
4676     *
4677     * @param packageContext A Context of the application package implementing
4678     * this class.
4679     * @param cls The class name to set, equivalent to
4680     *            <code>setClassName(context, cls.getName())</code>.
4681     *
4682     * @return Returns the same Intent object, for chaining multiple calls
4683     * into a single statement.
4684     *
4685     * @see #setComponent
4686     */
4687    public Intent setClass(Context packageContext, Class<?> cls) {
4688        mComponent = new ComponentName(packageContext, cls);
4689        return this;
4690    }
4691
4692    /**
4693     * Set the bounds of the sender of this intent, in screen coordinates.  This can be
4694     * used as a hint to the receiver for animations and the like.  Null means that there
4695     * is no source bounds.
4696     */
4697    public void setSourceBounds(Rect r) {
4698        if (r != null) {
4699            mSourceBounds = new Rect(r);
4700        } else {
4701            r = null;
4702        }
4703    }
4704
4705    /**
4706     * Use with {@link #fillIn} to allow the current action value to be
4707     * overwritten, even if it is already set.
4708     */
4709    public static final int FILL_IN_ACTION = 1<<0;
4710
4711    /**
4712     * Use with {@link #fillIn} to allow the current data or type value
4713     * overwritten, even if it is already set.
4714     */
4715    public static final int FILL_IN_DATA = 1<<1;
4716
4717    /**
4718     * Use with {@link #fillIn} to allow the current categories to be
4719     * overwritten, even if they are already set.
4720     */
4721    public static final int FILL_IN_CATEGORIES = 1<<2;
4722
4723    /**
4724     * Use with {@link #fillIn} to allow the current component value to be
4725     * overwritten, even if it is already set.
4726     */
4727    public static final int FILL_IN_COMPONENT = 1<<3;
4728
4729    /**
4730     * Use with {@link #fillIn} to allow the current package value to be
4731     * overwritten, even if it is already set.
4732     */
4733    public static final int FILL_IN_PACKAGE = 1<<4;
4734
4735    /**
4736     * Use with {@link #fillIn} to allow the current package value to be
4737     * overwritten, even if it is already set.
4738     */
4739    public static final int FILL_IN_SOURCE_BOUNDS = 1<<5;
4740
4741    /**
4742     * Copy the contents of <var>other</var> in to this object, but only
4743     * where fields are not defined by this object.  For purposes of a field
4744     * being defined, the following pieces of data in the Intent are
4745     * considered to be separate fields:
4746     *
4747     * <ul>
4748     * <li> action, as set by {@link #setAction}.
4749     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4750     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4751     * <li> categories, as set by {@link #addCategory}.
4752     * <li> package, as set by {@link #setPackage}.
4753     * <li> component, as set by {@link #setComponent(ComponentName)} or
4754     * related methods.
4755     * <li> source bounds, as set by {@link #setSourceBounds}
4756     * <li> each top-level name in the associated extras.
4757     * </ul>
4758     *
4759     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4760     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4761     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
4762     * corresponding field will not be replaced if it is already set.
4763     *
4764     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
4765     * specified.
4766     *
4767     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4768     * and Intent B with {action="gotit", data-type="some/thing",
4769     * categories="one","two"}.
4770     *
4771     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4772     * containing: {action="gotit", data-type="some/thing",
4773     * categories="bar"}.
4774     *
4775     * @param other Another Intent whose values are to be used to fill in
4776     * the current one.
4777     * @param flags Options to control which fields can be filled in.
4778     *
4779     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4780     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4781     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4782     */
4783    public int fillIn(Intent other, int flags) {
4784        int changes = 0;
4785        if (other.mAction != null
4786                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
4787            mAction = other.mAction;
4788            changes |= FILL_IN_ACTION;
4789        }
4790        if ((other.mData != null || other.mType != null)
4791                && ((mData == null && mType == null)
4792                        || (flags&FILL_IN_DATA) != 0)) {
4793            mData = other.mData;
4794            mType = other.mType;
4795            changes |= FILL_IN_DATA;
4796        }
4797        if (other.mCategories != null
4798                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
4799            if (other.mCategories != null) {
4800                mCategories = new HashSet<String>(other.mCategories);
4801            }
4802            changes |= FILL_IN_CATEGORIES;
4803        }
4804        if (other.mPackage != null
4805                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
4806            mPackage = other.mPackage;
4807            changes |= FILL_IN_PACKAGE;
4808        }
4809        // Component is special: it can -only- be set if explicitly allowed,
4810        // since otherwise the sender could force the intent somewhere the
4811        // originator didn't intend.
4812        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
4813            mComponent = other.mComponent;
4814            changes |= FILL_IN_COMPONENT;
4815        }
4816        mFlags |= other.mFlags;
4817        if (other.mSourceBounds != null
4818                && (mSourceBounds == null || (flags&FILL_IN_SOURCE_BOUNDS) != 0)) {
4819            mSourceBounds = new Rect(other.mSourceBounds);
4820            changes |= FILL_IN_SOURCE_BOUNDS;
4821        }
4822        if (mExtras == null) {
4823            if (other.mExtras != null) {
4824                mExtras = new Bundle(other.mExtras);
4825            }
4826        } else if (other.mExtras != null) {
4827            try {
4828                Bundle newb = new Bundle(other.mExtras);
4829                newb.putAll(mExtras);
4830                mExtras = newb;
4831            } catch (RuntimeException e) {
4832                // Modifying the extras can cause us to unparcel the contents
4833                // of the bundle, and if we do this in the system process that
4834                // may fail.  We really should handle this (i.e., the Bundle
4835                // impl shouldn't be on top of a plain map), but for now just
4836                // ignore it and keep the original contents. :(
4837                Log.w("Intent", "Failure filling in extras", e);
4838            }
4839        }
4840        return changes;
4841    }
4842
4843    /**
4844     * Wrapper class holding an Intent and implementing comparisons on it for
4845     * the purpose of filtering.  The class implements its
4846     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4847     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4848     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4849     * on the wrapped Intent.
4850     */
4851    public static final class FilterComparison {
4852        private final Intent mIntent;
4853        private final int mHashCode;
4854
4855        public FilterComparison(Intent intent) {
4856            mIntent = intent;
4857            mHashCode = intent.filterHashCode();
4858        }
4859
4860        /**
4861         * Return the Intent that this FilterComparison represents.
4862         * @return Returns the Intent held by the FilterComparison.  Do
4863         * not modify!
4864         */
4865        public Intent getIntent() {
4866            return mIntent;
4867        }
4868
4869        @Override
4870        public boolean equals(Object obj) {
4871            if (obj instanceof FilterComparison) {
4872                Intent other = ((FilterComparison)obj).mIntent;
4873                return mIntent.filterEquals(other);
4874            }
4875            return false;
4876        }
4877
4878        @Override
4879        public int hashCode() {
4880            return mHashCode;
4881        }
4882    }
4883
4884    /**
4885     * Determine if two intents are the same for the purposes of intent
4886     * resolution (filtering). That is, if their action, data, type,
4887     * class, and categories are the same.  This does <em>not</em> compare
4888     * any extra data included in the intents.
4889     *
4890     * @param other The other Intent to compare against.
4891     *
4892     * @return Returns true if action, data, type, class, and categories
4893     *         are the same.
4894     */
4895    public boolean filterEquals(Intent other) {
4896        if (other == null) {
4897            return false;
4898        }
4899        if (mAction != other.mAction) {
4900            if (mAction != null) {
4901                if (!mAction.equals(other.mAction)) {
4902                    return false;
4903                }
4904            } else {
4905                if (!other.mAction.equals(mAction)) {
4906                    return false;
4907                }
4908            }
4909        }
4910        if (mData != other.mData) {
4911            if (mData != null) {
4912                if (!mData.equals(other.mData)) {
4913                    return false;
4914                }
4915            } else {
4916                if (!other.mData.equals(mData)) {
4917                    return false;
4918                }
4919            }
4920        }
4921        if (mType != other.mType) {
4922            if (mType != null) {
4923                if (!mType.equals(other.mType)) {
4924                    return false;
4925                }
4926            } else {
4927                if (!other.mType.equals(mType)) {
4928                    return false;
4929                }
4930            }
4931        }
4932        if (mPackage != other.mPackage) {
4933            if (mPackage != null) {
4934                if (!mPackage.equals(other.mPackage)) {
4935                    return false;
4936                }
4937            } else {
4938                if (!other.mPackage.equals(mPackage)) {
4939                    return false;
4940                }
4941            }
4942        }
4943        if (mComponent != other.mComponent) {
4944            if (mComponent != null) {
4945                if (!mComponent.equals(other.mComponent)) {
4946                    return false;
4947                }
4948            } else {
4949                if (!other.mComponent.equals(mComponent)) {
4950                    return false;
4951                }
4952            }
4953        }
4954        if (mCategories != other.mCategories) {
4955            if (mCategories != null) {
4956                if (!mCategories.equals(other.mCategories)) {
4957                    return false;
4958                }
4959            } else {
4960                if (!other.mCategories.equals(mCategories)) {
4961                    return false;
4962                }
4963            }
4964        }
4965
4966        return true;
4967    }
4968
4969    /**
4970     * Generate hash code that matches semantics of filterEquals().
4971     *
4972     * @return Returns the hash value of the action, data, type, class, and
4973     *         categories.
4974     *
4975     * @see #filterEquals
4976     */
4977    public int filterHashCode() {
4978        int code = 0;
4979        if (mAction != null) {
4980            code += mAction.hashCode();
4981        }
4982        if (mData != null) {
4983            code += mData.hashCode();
4984        }
4985        if (mType != null) {
4986            code += mType.hashCode();
4987        }
4988        if (mPackage != null) {
4989            code += mPackage.hashCode();
4990        }
4991        if (mComponent != null) {
4992            code += mComponent.hashCode();
4993        }
4994        if (mCategories != null) {
4995            code += mCategories.hashCode();
4996        }
4997        return code;
4998    }
4999
5000    @Override
5001    public String toString() {
5002        StringBuilder   b = new StringBuilder(128);
5003
5004        b.append("Intent { ");
5005        toShortString(b, true, true);
5006        b.append(" }");
5007
5008        return b.toString();
5009    }
5010
5011    /** @hide */
5012    public String toShortString(boolean comp, boolean extras) {
5013        StringBuilder   b = new StringBuilder(128);
5014        toShortString(b, comp, extras);
5015        return b.toString();
5016    }
5017
5018    /** @hide */
5019    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
5020        boolean first = true;
5021        if (mAction != null) {
5022            b.append("act=").append(mAction);
5023            first = false;
5024        }
5025        if (mCategories != null) {
5026            if (!first) {
5027                b.append(' ');
5028            }
5029            first = false;
5030            b.append("cat=[");
5031            Iterator<String> i = mCategories.iterator();
5032            boolean didone = false;
5033            while (i.hasNext()) {
5034                if (didone) b.append(",");
5035                didone = true;
5036                b.append(i.next());
5037            }
5038            b.append("]");
5039        }
5040        if (mData != null) {
5041            if (!first) {
5042                b.append(' ');
5043            }
5044            first = false;
5045            b.append("dat=").append(mData);
5046        }
5047        if (mType != null) {
5048            if (!first) {
5049                b.append(' ');
5050            }
5051            first = false;
5052            b.append("typ=").append(mType);
5053        }
5054        if (mFlags != 0) {
5055            if (!first) {
5056                b.append(' ');
5057            }
5058            first = false;
5059            b.append("flg=0x").append(Integer.toHexString(mFlags));
5060        }
5061        if (mPackage != null) {
5062            if (!first) {
5063                b.append(' ');
5064            }
5065            first = false;
5066            b.append("pkg=").append(mPackage);
5067        }
5068        if (comp && mComponent != null) {
5069            if (!first) {
5070                b.append(' ');
5071            }
5072            first = false;
5073            b.append("cmp=").append(mComponent.flattenToShortString());
5074        }
5075        if (mSourceBounds != null) {
5076            if (!first) {
5077                b.append(' ');
5078            }
5079            first = false;
5080            b.append("bnds=").append(mSourceBounds.toShortString());
5081        }
5082        if (extras && mExtras != null) {
5083            if (!first) {
5084                b.append(' ');
5085            }
5086            first = false;
5087            b.append("(has extras)");
5088        }
5089    }
5090
5091    /**
5092     * Call {@link #toUri} with 0 flags.
5093     * @deprecated Use {@link #toUri} instead.
5094     */
5095    @Deprecated
5096    public String toURI() {
5097        return toUri(0);
5098    }
5099
5100    /**
5101     * Convert this Intent into a String holding a URI representation of it.
5102     * The returned URI string has been properly URI encoded, so it can be
5103     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
5104     * Intent's data as the base URI, with an additional fragment describing
5105     * the action, categories, type, flags, package, component, and extras.
5106     *
5107     * <p>You can convert the returned string back to an Intent with
5108     * {@link #getIntent}.
5109     *
5110     * @param flags Additional operating flags.  Either 0 or
5111     * {@link #URI_INTENT_SCHEME}.
5112     *
5113     * @return Returns a URI encoding URI string describing the entire contents
5114     * of the Intent.
5115     */
5116    public String toUri(int flags) {
5117        StringBuilder uri = new StringBuilder(128);
5118        String scheme = null;
5119        if (mData != null) {
5120            String data = mData.toString();
5121            if ((flags&URI_INTENT_SCHEME) != 0) {
5122                final int N = data.length();
5123                for (int i=0; i<N; i++) {
5124                    char c = data.charAt(i);
5125                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
5126                            || c == '.' || c == '-') {
5127                        continue;
5128                    }
5129                    if (c == ':' && i > 0) {
5130                        // Valid scheme.
5131                        scheme = data.substring(0, i);
5132                        uri.append("intent:");
5133                        data = data.substring(i+1);
5134                        break;
5135                    }
5136
5137                    // No scheme.
5138                    break;
5139                }
5140            }
5141            uri.append(data);
5142
5143        } else if ((flags&URI_INTENT_SCHEME) != 0) {
5144            uri.append("intent:");
5145        }
5146
5147        uri.append("#Intent;");
5148
5149        if (scheme != null) {
5150            uri.append("scheme=").append(scheme).append(';');
5151        }
5152        if (mAction != null) {
5153            uri.append("action=").append(Uri.encode(mAction)).append(';');
5154        }
5155        if (mCategories != null) {
5156            for (String category : mCategories) {
5157                uri.append("category=").append(Uri.encode(category)).append(';');
5158            }
5159        }
5160        if (mType != null) {
5161            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
5162        }
5163        if (mFlags != 0) {
5164            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
5165        }
5166        if (mPackage != null) {
5167            uri.append("package=").append(Uri.encode(mPackage)).append(';');
5168        }
5169        if (mComponent != null) {
5170            uri.append("component=").append(Uri.encode(
5171                    mComponent.flattenToShortString(), "/")).append(';');
5172        }
5173        if (mSourceBounds != null) {
5174            uri.append("sourceBounds=")
5175                    .append(Uri.encode(mSourceBounds.flattenToString()))
5176                    .append(';');
5177        }
5178        if (mExtras != null) {
5179            for (String key : mExtras.keySet()) {
5180                final Object value = mExtras.get(key);
5181                char entryType =
5182                        value instanceof String    ? 'S' :
5183                        value instanceof Boolean   ? 'B' :
5184                        value instanceof Byte      ? 'b' :
5185                        value instanceof Character ? 'c' :
5186                        value instanceof Double    ? 'd' :
5187                        value instanceof Float     ? 'f' :
5188                        value instanceof Integer   ? 'i' :
5189                        value instanceof Long      ? 'l' :
5190                        value instanceof Short     ? 's' :
5191                        '\0';
5192
5193                if (entryType != '\0') {
5194                    uri.append(entryType);
5195                    uri.append('.');
5196                    uri.append(Uri.encode(key));
5197                    uri.append('=');
5198                    uri.append(Uri.encode(value.toString()));
5199                    uri.append(';');
5200                }
5201            }
5202        }
5203
5204        uri.append("end");
5205
5206        return uri.toString();
5207    }
5208
5209    public int describeContents() {
5210        return (mExtras != null) ? mExtras.describeContents() : 0;
5211    }
5212
5213    public void writeToParcel(Parcel out, int flags) {
5214        out.writeString(mAction);
5215        Uri.writeToParcel(out, mData);
5216        out.writeString(mType);
5217        out.writeInt(mFlags);
5218        out.writeString(mPackage);
5219        ComponentName.writeToParcel(mComponent, out);
5220
5221        if (mSourceBounds != null) {
5222            out.writeInt(1);
5223            mSourceBounds.writeToParcel(out, flags);
5224        } else {
5225            out.writeInt(0);
5226        }
5227
5228        if (mCategories != null) {
5229            out.writeInt(mCategories.size());
5230            for (String category : mCategories) {
5231                out.writeString(category);
5232            }
5233        } else {
5234            out.writeInt(0);
5235        }
5236
5237        out.writeBundle(mExtras);
5238    }
5239
5240    public static final Parcelable.Creator<Intent> CREATOR
5241            = new Parcelable.Creator<Intent>() {
5242        public Intent createFromParcel(Parcel in) {
5243            return new Intent(in);
5244        }
5245        public Intent[] newArray(int size) {
5246            return new Intent[size];
5247        }
5248    };
5249
5250    /** @hide */
5251    protected Intent(Parcel in) {
5252        readFromParcel(in);
5253    }
5254
5255    public void readFromParcel(Parcel in) {
5256        mAction = in.readString();
5257        mData = Uri.CREATOR.createFromParcel(in);
5258        mType = in.readString();
5259        mFlags = in.readInt();
5260        mPackage = in.readString();
5261        mComponent = ComponentName.readFromParcel(in);
5262
5263        if (in.readInt() != 0) {
5264            mSourceBounds = Rect.CREATOR.createFromParcel(in);
5265        }
5266
5267        int N = in.readInt();
5268        if (N > 0) {
5269            mCategories = new HashSet<String>();
5270            int i;
5271            for (i=0; i<N; i++) {
5272                mCategories.add(in.readString());
5273            }
5274        } else {
5275            mCategories = null;
5276        }
5277
5278        mExtras = in.readBundle();
5279    }
5280
5281    /**
5282     * Parses the "intent" element (and its children) from XML and instantiates
5283     * an Intent object.  The given XML parser should be located at the tag
5284     * where parsing should start (often named "intent"), from which the
5285     * basic action, data, type, and package and class name will be
5286     * retrieved.  The function will then parse in to any child elements,
5287     * looking for <category android:name="xxx"> tags to add categories and
5288     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5289     * to the intent.
5290     *
5291     * @param resources The Resources to use when inflating resources.
5292     * @param parser The XML parser pointing at an "intent" tag.
5293     * @param attrs The AttributeSet interface for retrieving extended
5294     * attribute data at the current <var>parser</var> location.
5295     * @return An Intent object matching the XML data.
5296     * @throws XmlPullParserException If there was an XML parsing error.
5297     * @throws IOException If there was an I/O error.
5298     */
5299    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5300            throws XmlPullParserException, IOException {
5301        Intent intent = new Intent();
5302
5303        TypedArray sa = resources.obtainAttributes(attrs,
5304                com.android.internal.R.styleable.Intent);
5305
5306        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5307
5308        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5309        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5310        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5311
5312        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5313        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5314        if (packageName != null && className != null) {
5315            intent.setComponent(new ComponentName(packageName, className));
5316        }
5317
5318        sa.recycle();
5319
5320        int outerDepth = parser.getDepth();
5321        int type;
5322        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5323               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5324            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5325                continue;
5326            }
5327
5328            String nodeName = parser.getName();
5329            if (nodeName.equals("category")) {
5330                sa = resources.obtainAttributes(attrs,
5331                        com.android.internal.R.styleable.IntentCategory);
5332                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5333                sa.recycle();
5334
5335                if (cat != null) {
5336                    intent.addCategory(cat);
5337                }
5338                XmlUtils.skipCurrentTag(parser);
5339
5340            } else if (nodeName.equals("extra")) {
5341                if (intent.mExtras == null) {
5342                    intent.mExtras = new Bundle();
5343                }
5344                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5345                XmlUtils.skipCurrentTag(parser);
5346
5347            } else {
5348                XmlUtils.skipCurrentTag(parser);
5349            }
5350        }
5351
5352        return intent;
5353    }
5354}
5355