Intent.java revision 1ef4564d4ad14f2c5dcb162636875ca8aed5e4d9
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.content;
18
19import org.xmlpull.v1.XmlPullParser;
20import org.xmlpull.v1.XmlPullParserException;
21
22import android.annotation.SdkConstant;
23import android.annotation.SdkConstant.SdkConstantType;
24import android.content.pm.ActivityInfo;
25import android.content.pm.PackageManager;
26import android.content.pm.ResolveInfo;
27import android.content.res.Resources;
28import android.content.res.TypedArray;
29import android.net.Uri;
30import android.os.Bundle;
31import android.os.IBinder;
32import android.os.Parcel;
33import android.os.Parcelable;
34import android.util.AttributeSet;
35import android.util.Log;
36import android.util.TypedValue;
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/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/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/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/</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.app.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:value="android.intent.action.MAIN" /&gt;
245 *                 &lt;category android:value="android.intent.category.LAUNCHER" /&gt;
246 *             &lt;/intent-filter&gt;
247 *             &lt;intent-filter&gt;
248 *                 &lt;action android:value="android.intent.action.VIEW" /&gt;
249 *                 &lt;action android:value="android.intent.action.EDIT" /&gt;
250 *                 &lt;action android:value="android.intent.action.PICK" /&gt;
251 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
252 *                 &lt;type android:value="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
253 *             &lt;/intent-filter&gt;
254 *             &lt;intent-filter&gt;
255 *                 &lt;action android:value="android.intent.action.GET_CONTENT" /&gt;
256 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
257 *                 &lt;type android:value="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:value="android.intent.action.VIEW" /&gt;
264 *                 &lt;action android:value="android.intent.action.EDIT" /&gt;
265 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
266 *                 &lt;type android:value="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:value="android.intent.action.INSERT" /&gt;
271 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
272 *                 &lt;type android:value="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:value="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
281 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
282 *                 &lt;category android:value="android.intent.category.ALTERNATIVE" /&gt;
283 *                 &lt;category android:value="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
284 *                 &lt;type android:value="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:value="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
299 *     &lt;category android:value="{@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:value="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
308 *     &lt;action android:value="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
309 *     &lt;action android:value="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
310 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
311 *     &lt;type android:value="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:value="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
327 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
328 *     &lt;type android:value="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.app.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:value="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
376 *     &lt;action android:value="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
377 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
378 *     &lt;type android:value="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:value="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
389 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
390 *     &lt;type android:value="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.app.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:value="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
427 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
428 *     &lt;category android:value="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
429 *     &lt;category android:value="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
430 *     &lt;type android:value="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_UID_REMOVED}
509 *     <li> {@link #ACTION_BATTERY_CHANGED}
510 *     <li> {@link #ACTION_POWER_CONNECTED}
511 *     <li> {@link #ACTION_POWER_DISCONNECTED}
512 * </ul>
513 *
514 * <h3>Standard Categories</h3>
515 *
516 * <p>These are the current standard categories that can be used to further
517 * clarify an Intent via {@link #addCategory}.
518 *
519 * <ul>
520 *     <li> {@link #CATEGORY_DEFAULT}
521 *     <li> {@link #CATEGORY_BROWSABLE}
522 *     <li> {@link #CATEGORY_TAB}
523 *     <li> {@link #CATEGORY_ALTERNATIVE}
524 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
525 *     <li> {@link #CATEGORY_LAUNCHER}
526 *     <li> {@link #CATEGORY_HOME}
527 *     <li> {@link #CATEGORY_PREFERENCE}
528 *     <li> {@link #CATEGORY_GADGET}
529 *     <li> {@link #CATEGORY_TEST}
530 * </ul>
531 *
532 * <h3>Standard Extra Data</h3>
533 *
534 * <p>These are the current standard fields that can be used as extra data via
535 * {@link #putExtra}.
536 *
537 * <ul>
538 *     <li> {@link #EXTRA_TEMPLATE}
539 *     <li> {@link #EXTRA_INTENT}
540 *     <li> {@link #EXTRA_STREAM}
541 *     <li> {@link #EXTRA_TEXT}
542 * </ul>
543 *
544 * <h3>Flags</h3>
545 *
546 * <p>These are the possible flags that can be used in the Intent via
547 * {@link #setFlags} and {@link #addFlags}.
548 *
549 * <ul>
550 *     <li> {@link #FLAG_GRANT_READ_URI_PERMISSION}
551 *     <li> {@link #FLAG_GRANT_WRITE_URI_PERMISSION}
552 *     <li> {@link #FLAG_FROM_BACKGROUND}
553 *     <li> {@link #FLAG_DEBUG_LOG_RESOLUTION}
554 *     <li> {@link #FLAG_ACTIVITY_NO_HISTORY}
555 *     <li> {@link #FLAG_ACTIVITY_SINGLE_TOP}
556 *     <li> {@link #FLAG_ACTIVITY_NEW_TASK}
557 *     <li> {@link #FLAG_ACTIVITY_MULTIPLE_TASK}
558 *     <li> {@link #FLAG_ACTIVITY_FORWARD_RESULT}
559 *     <li> {@link #FLAG_ACTIVITY_PREVIOUS_IS_TOP}
560 *     <li> {@link #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS}
561 *     <li> {@link #FLAG_ACTIVITY_BROUGHT_TO_FRONT}
562 *     <li> {@link #FLAG_RECEIVER_REGISTERED_ONLY}
563 * </ul>
564 */
565public class Intent implements Parcelable {
566    // ---------------------------------------------------------------------
567    // ---------------------------------------------------------------------
568    // Standard intent activity actions (see action variable).
569
570    /**
571     *  Activity Action: Start as a main entry point, does not expect to
572     *  receive data.
573     *  <p>Input: nothing
574     *  <p>Output: nothing
575     */
576    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
577    public static final String ACTION_MAIN = "android.intent.action.MAIN";
578    /**
579     * Activity Action: Display the data to the user.  This is the most common
580     * action performed on data -- it is the generic action you can use on
581     * a piece of data to get the most reasonable thing to occur.  For example,
582     * when used on a contacts entry it will view the entry; when used on a
583     * mailto: URI it will bring up a compose window filled with the information
584     * supplied by the URI; when used with a tel: URI it will invoke the
585     * dialer.
586     * <p>Input: {@link #getData} is URI from which to retrieve data.
587     * <p>Output: nothing.
588     */
589    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
590    public static final String ACTION_VIEW = "android.intent.action.VIEW";
591    /**
592     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
593     * performed on a piece of data.
594     */
595    public static final String ACTION_DEFAULT = ACTION_VIEW;
596    /**
597     * Used to indicate that some piece of data should be attached to some other
598     * place.  For example, image data could be attached to a contact.  It is up
599     * to the recipient to decide where the data should be attached; the intent
600     * does not specify the ultimate destination.
601     * <p>Input: {@link #getData} is URI of data to be attached.
602     * <p>Output: nothing.
603     */
604    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
605    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
606    /**
607     * Activity Action: Provide explicit editable access to the given data.
608     * <p>Input: {@link #getData} is URI of data to be edited.
609     * <p>Output: nothing.
610     */
611    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
612    public static final String ACTION_EDIT = "android.intent.action.EDIT";
613    /**
614     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
615     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
616     * The extras can contain type specific data to pass through to the editing/creating
617     * activity.
618     * <p>Output: The URI of the item that was picked.  This must be a content:
619     * URI so that any receiver can access it.
620     */
621    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
622    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
623    /**
624     * Activity Action: Pick an item from the data, returning what was selected.
625     * <p>Input: {@link #getData} is URI containing a directory of data
626     * (vnd.android.cursor.dir/*) from which to pick an item.
627     * <p>Output: The URI of the item that was picked.
628     */
629    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
630    public static final String ACTION_PICK = "android.intent.action.PICK";
631    /**
632     * Activity Action: Creates a shortcut.
633     * <p>Input: Nothing.
634     * <p>Output: An Intent representing the shortcut. The intent must contain three
635     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
636     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
637     * (value: ShortcutIconResource).
638     * @see #EXTRA_SHORTCUT_INTENT
639     * @see #EXTRA_SHORTCUT_NAME
640     * @see #EXTRA_SHORTCUT_ICON
641     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
642     * @see android.content.Intent.ShortcutIconResource
643     */
644    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
645    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
646
647    /**
648     * The name of the extra used to define the Intent of a shortcut.
649     *
650     * @see #ACTION_CREATE_SHORTCUT
651     */
652    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
653    /**
654     * The name of the extra used to define the name of a shortcut.
655     *
656     * @see #ACTION_CREATE_SHORTCUT
657     */
658    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
659    /**
660     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
661     *
662     * @see #ACTION_CREATE_SHORTCUT
663     */
664    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
665    /**
666     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
667     *
668     * @see #ACTION_CREATE_SHORTCUT
669     * @see android.content.Intent.ShortcutIconResource
670     */
671    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
672            "android.intent.extra.shortcut.ICON_RESOURCE";
673
674    /**
675     * Represents a shortcut icon resource.
676     *
677     * @see Intent#ACTION_CREATE_SHORTCUT
678     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
679     */
680    public static class ShortcutIconResource implements Parcelable {
681        /**
682         * The package name of the application containing the icon.
683         */
684        public String packageName;
685
686        /**
687         * The resource name of the icon, including package, name and type.
688         */
689        public String resourceName;
690
691        /**
692         * Creates a new ShortcutIconResource for the specified context and resource
693         * identifier.
694         *
695         * @param context The context of the application.
696         * @param resourceId The resource idenfitier for the icon.
697         * @return A new ShortcutIconResource with the specified's context package name
698         *         and icon resource idenfitier.
699         */
700        public static ShortcutIconResource fromContext(Context context, int resourceId) {
701            ShortcutIconResource icon = new ShortcutIconResource();
702            icon.packageName = context.getPackageName();
703            icon.resourceName = context.getResources().getResourceName(resourceId);
704            return icon;
705        }
706
707        /**
708         * Used to read a ShortcutIconResource from a Parcel.
709         */
710        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
711            new Parcelable.Creator<ShortcutIconResource>() {
712
713                public ShortcutIconResource createFromParcel(Parcel source) {
714                    ShortcutIconResource icon = new ShortcutIconResource();
715                    icon.packageName = source.readString();
716                    icon.resourceName = source.readString();
717                    return icon;
718                }
719
720                public ShortcutIconResource[] newArray(int size) {
721                    return new ShortcutIconResource[size];
722                }
723            };
724
725        /**
726         * No special parcel contents.
727         */
728        public int describeContents() {
729            return 0;
730        }
731
732        public void writeToParcel(Parcel dest, int flags) {
733            dest.writeString(packageName);
734            dest.writeString(resourceName);
735        }
736
737        @Override
738        public String toString() {
739            return resourceName;
740        }
741    }
742
743    /**
744     * Activity Action: Display an activity chooser, allowing the user to pick
745     * what they want to before proceeding.  This can be used as an alternative
746     * to the standard activity picker that is displayed by the system when
747     * you try to start an activity with multiple possible matches, with these
748     * differences in behavior:
749     * <ul>
750     * <li>You can specify the title that will appear in the activity chooser.
751     * <li>The user does not have the option to make one of the matching
752     * activities a preferred activity, and all possible activities will
753     * always be shown even if one of them is currently marked as the
754     * preferred activity.
755     * </ul>
756     * <p>
757     * This action should be used when the user will naturally expect to
758     * select an activity in order to proceed.  An example if when not to use
759     * it is when the user clicks on a "mailto:" link.  They would naturally
760     * expect to go directly to their mail app, so startActivity() should be
761     * called directly: it will
762     * either launch the current preferred app, or put up a dialog allowing the
763     * user to pick an app to use and optionally marking that as preferred.
764     * <p>
765     * In contrast, if the user is selecting a menu item to send a picture
766     * they are viewing to someone else, there are many different things they
767     * may want to do at this point: send it through e-mail, upload it to a
768     * web service, etc.  In this case the CHOOSER action should be used, to
769     * always present to the user a list of the things they can do, with a
770     * nice title given by the caller such as "Send this photo with:".
771     * <p>
772     * As a convenience, an Intent of this form can be created with the
773     * {@link #createChooser} function.
774     * <p>Input: No data should be specified.  get*Extra must have
775     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
776     * and can optionally have a {@link #EXTRA_TITLE} field containing the
777     * title text to display in the chooser.
778     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
779     */
780    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
781    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
782
783    /**
784     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
785     *
786     * @param target The Intent that the user will be selecting an activity
787     * to perform.
788     * @param title Optional title that will be displayed in the chooser.
789     * @return Return a new Intent object that you can hand to
790     * {@link Context#startActivity(Intent) Context.startActivity()} and
791     * related methods.
792     */
793    public static Intent createChooser(Intent target, CharSequence title) {
794        Intent intent = new Intent(ACTION_CHOOSER);
795        intent.putExtra(EXTRA_INTENT, target);
796        if (title != null) {
797            intent.putExtra(EXTRA_TITLE, title);
798        }
799        return intent;
800    }
801    /**
802     * Activity Action: Allow the user to select a particular kind of data and
803     * return it.  This is different than {@link #ACTION_PICK} in that here we
804     * just say what kind of data is desired, not a URI of existing data from
805     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
806     * create the data as it runs (for example taking a picture or recording a
807     * sound), let them browser over the web and download the desired data,
808     * etc.
809     * <p>
810     * There are two main ways to use this action: if you want an specific kind
811     * of data, such as a person contact, you set the MIME type to the kind of
812     * data you want and launch it with {@link Context#startActivity(Intent)}.
813     * The system will then launch the best application to select that kind
814     * of data for you.
815     * <p>
816     * You may also be interested in any of a set of types of content the user
817     * can pick.  For example, an e-mail application that wants to allow the
818     * user to add an attachment to an e-mail message can use this action to
819     * bring up a list of all of the types of content the user can attach.
820     * <p>
821     * In this case, you should wrap the GET_CONTENT intent with a chooser
822     * (through {@link #createChooser}), which will give the proper interface
823     * for the user to pick how to send your data and allow you to specify
824     * a prompt indicating what they are doing.  You will usually specify a
825     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
826     * broad range of content types the user can select from.
827     * <p>
828     * When using such a broad GET_CONTENT action, it is often desireable to
829     * only pick from data that can be represented as a stream.  This is
830     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
831     * <p>
832     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
833     * that no URI is supplied in the intent, as there are no constraints on
834     * where the returned data originally comes from.  You may also include the
835     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
836     * opened as a stream.
837     * <p>
838     * Output: The URI of the item that was picked.  This must be a content:
839     * URI so that any receiver can access it.
840     */
841    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
842    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
843    /**
844     * Activity Action: Dial a number as specified by the data.  This shows a
845     * UI with the number being dialed, allowing the user to explicitly
846     * initiate the call.
847     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
848     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
849     * number.
850     * <p>Output: nothing.
851     */
852    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
853    public static final String ACTION_DIAL = "android.intent.action.DIAL";
854    /**
855     * Activity Action: Perform a call to someone specified by the data.
856     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
857     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
858     * number.
859     * <p>Output: nothing.
860     *
861     * <p>Note: there will be restrictions on which applications can initiate a
862     * call; most applications should use the {@link #ACTION_DIAL}.
863     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
864     * numbers.  Applications can <strong>dial</strong> emergency numbers using
865     * {@link #ACTION_DIAL}, however.
866     */
867    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
868    public static final String ACTION_CALL = "android.intent.action.CALL";
869    /**
870     * Activity Action: Perform a call to an emergency number specified by the
871     * data.
872     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
873     * tel: URI of an explicit phone number.
874     * <p>Output: nothing.
875     * @hide
876     */
877    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
878    /**
879     * Activity action: Perform a call to any number (emergency or not)
880     * specified by the data.
881     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
882     * tel: URI of an explicit phone number.
883     * <p>Output: nothing.
884     * @hide
885     */
886    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
887    /**
888     * Activity Action: Send a message to someone specified by the data.
889     * <p>Input: {@link #getData} is URI describing the target.
890     * <p>Output: nothing.
891     */
892    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
893    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
894    /**
895     * Activity Action: Deliver some data to someone else.  Who the data is
896     * being delivered to is not specified; it is up to the receiver of this
897     * action to ask the user where the data should be sent.
898     * <p>
899     * When launching a SEND intent, you should usually wrap it in a chooser
900     * (through {@link #createChooser}), which will give the proper interface
901     * for the user to pick how to send your data and allow you to specify
902     * a prompt indicating what they are doing.
903     * <p>
904     * Input: {@link #getType} is the MIME type of the data being sent.
905     * get*Extra can have either a {@link #EXTRA_TEXT}
906     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
907     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
908     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
909     * if the MIME type is unknown (this will only allow senders that can
910     * handle generic data streams).
911     * <p>
912     * Optional standard extras, which may be interpreted by some recipients as
913     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
914     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
915     * <p>
916     * Output: nothing.
917     */
918    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
919    public static final String ACTION_SEND = "android.intent.action.SEND";
920    /**
921     * Activity Action: Handle an incoming phone call.
922     * <p>Input: nothing.
923     * <p>Output: nothing.
924     */
925    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
926    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
927    /**
928     * Activity Action: Insert an empty item into the given container.
929     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
930     * in which to place the data.
931     * <p>Output: URI of the new data that was created.
932     */
933    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
934    public static final String ACTION_INSERT = "android.intent.action.INSERT";
935    /**
936     * Activity Action: Delete the given data from its container.
937     * <p>Input: {@link #getData} is URI of data to be deleted.
938     * <p>Output: nothing.
939     */
940    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
941    public static final String ACTION_DELETE = "android.intent.action.DELETE";
942    /**
943     * Activity Action: Run the data, whatever that means.
944     * <p>Input: ?  (Note: this is currently specific to the test harness.)
945     * <p>Output: nothing.
946     */
947    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
948    public static final String ACTION_RUN = "android.intent.action.RUN";
949    /**
950     * Activity Action: Perform a data synchronization.
951     * <p>Input: ?
952     * <p>Output: ?
953     */
954    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
955    public static final String ACTION_SYNC = "android.intent.action.SYNC";
956    /**
957     * Activity Action: Pick an activity given an intent, returning the class
958     * selected.
959     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
960     * used with {@link PackageManager#queryIntentActivities} to determine the
961     * set of activities from which to pick.
962     * <p>Output: Class name of the activity that was selected.
963     */
964    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
965    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
966    /**
967     * Activity Action: Perform a search.
968     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
969     * is the text to search for.  If empty, simply
970     * enter your search results Activity with the search UI activated.
971     * <p>Output: nothing.
972     */
973    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
974    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
975    /**
976     * Activity Action: Perform a web search.
977     * <p>Input: {@link #getData} is URI of data. If it is a url
978     * starts with http or https, the site will be opened. If it is plain text,
979     * Google search will be applied.
980     * <p>Output: nothing.
981     */
982    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
983    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
984    /**
985     * Activity Action: List all available applications
986     * <p>Input: Nothing.
987     * <p>Output: nothing.
988     */
989    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
990    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
991    /**
992     * Activity Action: Show settings for choosing wallpaper
993     * <p>Input: Nothing.
994     * <p>Output: Nothing.
995     */
996    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
997    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
998
999    /**
1000     * Activity Action: Show activity for reporting a bug.
1001     * <p>Input: Nothing.
1002     * <p>Output: Nothing.
1003     */
1004    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1005    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1006
1007    /**
1008     *  Activity Action: Main entry point for factory tests.  Only used when
1009     *  the device is booting in factory test node.  The implementing package
1010     *  must be installed in the system image.
1011     *  <p>Input: nothing
1012     *  <p>Output: nothing
1013     */
1014    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1015
1016    /**
1017     * Activity Action: The user pressed the "call" button to go to the dialer
1018     * or other appropriate UI for placing a call.
1019     * <p>Input: Nothing.
1020     * <p>Output: Nothing.
1021     */
1022    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1023    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1024
1025    /**
1026     * Activity Action: Start Voice Command.
1027     * <p>Input: Nothing.
1028     * <p>Output: Nothing.
1029     */
1030    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1031    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1032
1033    // ---------------------------------------------------------------------
1034    // ---------------------------------------------------------------------
1035    // Standard intent broadcast actions (see action variable).
1036
1037    /**
1038     * Broadcast Action: Sent after the screen turns off.
1039     */
1040    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1041    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1042    /**
1043     * Broadcast Action: Sent after the screen turns on.
1044     */
1045    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1046    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1047    /**
1048     * Broadcast Action: The current time has changed.  Sent every
1049     * minute.  You can <em>not</em> receive this through components declared
1050     * in manifests, only by exlicitly registering for it with
1051     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1052     * Context.registerReceiver()}.
1053     */
1054    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1055    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1056    /**
1057     * Broadcast Action: The time was set.
1058     */
1059    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1060    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1061    /**
1062     * Broadcast Action: The date has changed.
1063     */
1064    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1065    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1066    /**
1067     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1068     * <ul>
1069     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1070     * </ul>
1071     */
1072    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1073    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1074    /**
1075     * Alarm Changed Action: This is broadcast when the AlarmClock
1076     * application's alarm is set or unset.  It is used by the
1077     * AlarmClock application and the StatusBar service.
1078     * @hide
1079     */
1080    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1081    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1082    /**
1083     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1084     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1085     * @hide
1086     */
1087    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1088    public static final String ACTION_SYNC_STATE_CHANGED
1089            = "android.intent.action.SYNC_STATE_CHANGED";
1090    /**
1091     * Broadcast Action: This is broadcast once, after the system has finished
1092     * booting.  It can be used to perform application-specific initialization,
1093     * such as installing alarms.  You must hold the
1094     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1095     * in order to receive this broadcast.
1096     */
1097    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1098    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1099    /**
1100     * Broadcast Action: This is broadcast when a user action should request a
1101     * temporary system dialog to dismiss.  Some examples of temporary system
1102     * dialogs are the notification window-shade and the recent tasks dialog.
1103     */
1104    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1105    /**
1106     * Broadcast Action: Trigger the download and eventual installation
1107     * of a package.
1108     * <p>Input: {@link #getData} is the URI of the package file to download.
1109     */
1110    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1111    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1112    /**
1113     * Broadcast Action: A new application package has been installed on the
1114     * device. The data contains the name of the package.
1115     */
1116    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1117    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1118    /**
1119     * Broadcast Action: An existing application package has been removed from
1120     * the device.  The data contains the name of the package.  The package
1121     * that is being installed does <em>not</em> receive this Intent.
1122     */
1123    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1124    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1125    /**
1126     * Broadcast Action: An existing application package has been changed (e.g. a component has been
1127     * enabled or disabled.  The data contains the name of the package.
1128     */
1129    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1130    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1131    /**
1132     * Broadcast Action: The user has restarted a package, all runtime state
1133     * associated with it (processes, alarms, notifications, etc) should
1134     * be remove.  The data contains the name of the package.
1135     */
1136    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1137    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1138    /**
1139     * Broadcast Action: A user ID has been removed from the system.  The user
1140     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1141     */
1142    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1143    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1144    /**
1145     * Broadcast Action:  The current system wallpaper has changed.  See
1146     * {@link Context#getWallpaper} for retrieving the new wallpaper.
1147     */
1148    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1149    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1150    /**
1151     * Broadcast Action: The current device {@link android.content.res.Configuration}
1152     * (orientation, locale, etc) has changed.  When such a change happens, the
1153     * UIs (view hierarchy) will need to be rebuilt based on this new
1154     * information; for the most part, applications don't need to worry about
1155     * this, because the system will take care of stopping and restarting the
1156     * application to make sure it sees the new changes.  Some system code that
1157     * can not be restarted will need to watch for this action and handle it
1158     * appropriately.
1159     *
1160     * @see android.content.res.Configuration
1161     */
1162    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1163    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1164    /**
1165     * Broadcast Action:  The charging state, or charge level of the battery has
1166     * changed.
1167     *
1168     * <p class="note">
1169     * You can <em>not</em> receive this through components declared
1170     * in manifests, only by exlicitly registering for it with
1171     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1172     * Context.registerReceiver()}.
1173     */
1174    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1175    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1176    /**
1177     * Broadcast Action:  Indicates low battery condition on the device.
1178     * This broadcast corresponds to the "Low battery warning" system dialog.
1179     */
1180    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1181    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1182    /**
1183     * Broadcast Action:  External power has been connected to the device.
1184     * This is intended for applications that wish to register specifically to this notification.
1185     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1186     * stay active to receive this notification.  This action can be used to implement actions
1187     * that wait until power is available to trigger.
1188     */
1189    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1190    public static final String ACTION_POWER_CONNECTED = "android.intent.action.POWER_CONNECTED";
1191    /**
1192     * Broadcast Action:  External power has been removed from the device.
1193     * This is intended for applications that wish to register specifically to this notification.
1194     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1195     * stay active to receive this notification.  This action can be used to implement actions
1196     * that wait until power is available to trigger.
1197     */
1198    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1199    public static final String ACTION_POWER_DISCONNECTED =
1200            "android.intent.action.POWER_DISCONNECTED";
1201    /**
1202     * Broadcast Action:  Indicates low memory condition on the device
1203     */
1204    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1205    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1206    /**
1207     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1208     */
1209    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1210    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1211    /**
1212     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1213     * and package management should be started.
1214     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1215     * notification.
1216     */
1217    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1218    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1219    /**
1220     * Broadcast Action:  The device has entered USB Mass Storage mode.
1221     * This is used mainly for the USB Settings panel.
1222     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1223     * when the SD card file system is mounted or unmounted
1224     */
1225    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1226    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1227
1228    /**
1229     * Broadcast Action:  The device has exited USB Mass Storage mode.
1230     * This is used mainly for the USB Settings panel.
1231     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1232     * when the SD card file system is mounted or unmounted
1233     */
1234    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1235    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1236
1237    /**
1238     * Broadcast Action:  External media has been removed.
1239     * The path to the mount point for the removed media is contained in the Intent.mData field.
1240     */
1241    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1242    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1243
1244    /**
1245     * Broadcast Action:  External media is present, but not mounted at its mount point.
1246     * The path to the mount point for the removed media is contained in the Intent.mData field.
1247     */
1248    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1249    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1250
1251    /**
1252     * Broadcast Action:  External media is present and mounted at its mount point.
1253     * The path to the mount point for the removed media is contained in the Intent.mData field.
1254     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1255     * media was mounted read only.
1256     */
1257    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1258    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1259
1260    /**
1261     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1262     * The path to the mount point for the removed media is contained in the Intent.mData field.
1263     */
1264    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1265    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1266
1267    /**
1268     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1269     * The path to the mount point for the removed media is contained in the Intent.mData field.
1270     */
1271    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1272    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1273
1274    /**
1275     * Broadcast Action:  External media is present but cannot be mounted.
1276     * The path to the mount point for the removed media is contained in the Intent.mData field.
1277     */
1278    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1279    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1280
1281   /**
1282     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1283     * Applications should close all files they have open within the mount point when they receive this intent.
1284     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1285     */
1286    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1287    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1288
1289    /**
1290     * Broadcast Action:  The media scanner has started scanning a directory.
1291     * The path to the directory being scanned is contained in the Intent.mData field.
1292     */
1293    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1294    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1295
1296   /**
1297     * Broadcast Action:  The media scanner has finished scanning a directory.
1298     * The path to the scanned directory is contained in the Intent.mData field.
1299     */
1300    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1301    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1302
1303   /**
1304     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1305     * The path to the file is contained in the Intent.mData field.
1306     */
1307    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1308    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1309
1310   /**
1311     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1312     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1313     * caused the broadcast.
1314     */
1315    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1316    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1317
1318    /**
1319     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1320     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1321     * caused the broadcast.
1322     */
1323    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1324    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1325
1326    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1327    // location; they are not general-purpose actions.
1328
1329    /**
1330     * Broadcast Action: An GTalk connection has been established.
1331     */
1332    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1333    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1334            "android.intent.action.GTALK_CONNECTED";
1335
1336    /**
1337     * Broadcast Action: An GTalk connection has been disconnected.
1338     */
1339    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1340    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1341            "android.intent.action.GTALK_DISCONNECTED";
1342
1343    /**
1344     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1345     * more radios have been turned off or on. The intent will have the following extra value:</p>
1346     * <ul>
1347     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1348     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1349     *   turned off</li>
1350     * </ul>
1351     */
1352    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1353    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1354
1355    /**
1356     * Broadcast Action: Some content providers have parts of their namespace
1357     * where they publish new events or items that the user may be especially
1358     * interested in. For these things, they may broadcast this action when the
1359     * set of interesting items change.
1360     *
1361     * For example, GmailProvider sends this notification when the set of unread
1362     * mail in the inbox changes.
1363     *
1364     * <p>The data of the intent identifies which part of which provider
1365     * changed. When queried through the content resolver, the data URI will
1366     * return the data set in question.
1367     *
1368     * <p>The intent will have the following extra values:
1369     * <ul>
1370     *   <li><em>count</em> - The number of items in the data set. This is the
1371     *       same as the number of items in the cursor returned by querying the
1372     *       data URI. </li>
1373     * </ul>
1374     *
1375     * This intent will be sent at boot (if the count is non-zero) and when the
1376     * data set changes. It is possible for the data set to change without the
1377     * count changing (for example, if a new unread message arrives in the same
1378     * sync operation in which a message is archived). The phone should still
1379     * ring/vibrate/etc as normal in this case.
1380     */
1381    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1382    public static final String ACTION_PROVIDER_CHANGED =
1383            "android.intent.action.PROVIDER_CHANGED";
1384
1385    /**
1386     * Broadcast Action: Wired Headset plugged in or unplugged.
1387     *
1388     * <p>The intent will have the following extra values:
1389     * <ul>
1390     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1391     *   <li><em>name</em> - Headset type, human readable string </li>
1392     * </ul>
1393     * </ul>
1394     */
1395    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1396    public static final String ACTION_HEADSET_PLUG =
1397            "android.intent.action.HEADSET_PLUG";
1398
1399    /**
1400     * Broadcast Action: An outgoing call is about to be placed.
1401     *
1402     * <p>The Intent will have the following extra value:
1403     * <ul>
1404     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1405     *       the phone number originally intended to be dialed.</li>
1406     * </ul>
1407     * <p>Once the broadcast is finished, the resultData is used as the actual
1408     * number to call.  If  <code>null</code>, no call will be placed.</p>
1409     * <p>It is perfectly acceptable for multiple receivers to process the
1410     * outgoing call in turn: for example, a parental control application
1411     * might verify that the user is authorized to place the call at that
1412     * time, then a number-rewriting application might add an area code if
1413     * one was not specified.</p>
1414     * <p>For consistency, any receiver whose purpose is to prohibit phone
1415     * calls should have a priority of 0, to ensure it will see the final
1416     * phone number to be dialed.
1417     * Any receiver whose purpose is to rewrite phone numbers to be called
1418     * should have a positive priority.
1419     * Negative priorities are reserved for the system for this broadcast;
1420     * using them may cause problems.</p>
1421     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1422     * abort the broadcast.</p>
1423     * <p>Emergency calls cannot be intercepted using this mechanism, and
1424     * other calls cannot be modified to call emergency numbers using this
1425     * mechanism.
1426     * <p>You must hold the
1427     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1428     * permission to receive this Intent.</p>
1429     */
1430    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1431    public static final String ACTION_NEW_OUTGOING_CALL =
1432            "android.intent.action.NEW_OUTGOING_CALL";
1433
1434    /**
1435     * Broadcast Action: Have the device reboot.  This is only for use by
1436     * system code.
1437     */
1438    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1439    public static final String ACTION_REBOOT =
1440            "android.intent.action.REBOOT";
1441
1442    // ---------------------------------------------------------------------
1443    // ---------------------------------------------------------------------
1444    // Standard intent categories (see addCategory()).
1445
1446    /**
1447     * Set if the activity should be an option for the default action
1448     * (center press) to perform on a piece of data.  Setting this will
1449     * hide from the user any activities without it set when performing an
1450     * action on some data.  Note that this is normal -not- set in the
1451     * Intent when initiating an action -- it is for use in intent filters
1452     * specified in packages.
1453     */
1454    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1455    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1456    /**
1457     * Activities that can be safely invoked from a browser must support this
1458     * category.  For example, if the user is viewing a web page or an e-mail
1459     * and clicks on a link in the text, the Intent generated execute that
1460     * link will require the BROWSABLE category, so that only activities
1461     * supporting this category will be considered as possible actions.  By
1462     * supporting this category, you are promising that there is nothing
1463     * damaging (without user intervention) that can happen by invoking any
1464     * matching Intent.
1465     */
1466    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1467    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1468    /**
1469     * Set if the activity should be considered as an alternative action to
1470     * the data the user is currently viewing.  See also
1471     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1472     * applies to the selection in a list of items.
1473     *
1474     * <p>Supporting this category means that you would like your activity to be
1475     * displayed in the set of alternative things the user can do, usually as
1476     * part of the current activity's options menu.  You will usually want to
1477     * include a specific label in the &lt;intent-filter&gt; of this action
1478     * describing to the user what it does.
1479     *
1480     * <p>The action of IntentFilter with this category is important in that it
1481     * describes the specific action the target will perform.  This generally
1482     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1483     * a specific name such as "com.android.camera.action.CROP.  Only one
1484     * alternative of any particular action will be shown to the user, so using
1485     * a specific action like this makes sure that your alternative will be
1486     * displayed while also allowing other applications to provide their own
1487     * overrides of that particular action.
1488     */
1489    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1490    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1491    /**
1492     * Set if the activity should be considered as an alternative selection
1493     * action to the data the user has currently selected.  This is like
1494     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1495     * of items from which the user can select, giving them alternatives to the
1496     * default action that will be performed on it.
1497     */
1498    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1499    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1500    /**
1501     * Intended to be used as a tab inside of an containing TabActivity.
1502     */
1503    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1504    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1505    /**
1506     * This activity can be embedded inside of another activity that is hosting
1507     * gadgets.
1508     */
1509    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1510    public static final String CATEGORY_GADGET = "android.intent.category.GADGET";
1511    /**
1512     * Should be displayed in the top-level launcher.
1513     */
1514    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1515    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1516    /**
1517     * This is the home activity, that is the first activity that is displayed
1518     * when the device boots.
1519     */
1520    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1521    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1522    /**
1523     * This activity is a preference panel.
1524     */
1525    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1526    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1527    /**
1528     * This activity is a development preference panel.
1529     */
1530    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1531    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1532    /**
1533     * Capable of running inside a parent activity container.
1534     *
1535     * <p>Note: being removed in favor of more explicit categories such as
1536     * CATEGORY_GADGET
1537     */
1538    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1539    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1540    /**
1541     * This activity may be exercised by the monkey or other automated test tools.
1542     */
1543    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1544    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1545    /**
1546     * To be used as a test (not part of the normal user experience).
1547     */
1548    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1549    /**
1550     * To be used as a unit test (run through the Test Harness).
1551     */
1552    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1553    /**
1554     * To be used as an sample code example (not part of the normal user
1555     * experience).
1556     */
1557    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1558    /**
1559     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1560     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1561     * when queried, though it is allowable for those columns to be blank.
1562     */
1563    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1564    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1565
1566    /**
1567     * To be used as code under test for framework instrumentation tests.
1568     */
1569    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1570            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1571    // ---------------------------------------------------------------------
1572    // ---------------------------------------------------------------------
1573    // Standard extra data keys.
1574
1575    /**
1576     * The initial data to place in a newly created record.  Use with
1577     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1578     * fields as would be given to the underlying ContentProvider.insert()
1579     * call.
1580     */
1581    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1582
1583    /**
1584     * A constant CharSequence that is associated with the Intent, used with
1585     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1586     * this may be a styled CharSequence, so you must use
1587     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1588     * retrieve it.
1589     */
1590    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1591
1592    /**
1593     * A content: URI holding a stream of data associated with the Intent,
1594     * used with {@link #ACTION_SEND} to supply the data being sent.
1595     */
1596    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1597
1598    /**
1599     * A String[] holding e-mail addresses that should be delivered to.
1600     */
1601    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1602
1603    /**
1604     * A String[] holding e-mail addresses that should be carbon copied.
1605     */
1606    public static final String EXTRA_CC       = "android.intent.extra.CC";
1607
1608    /**
1609     * A String[] holding e-mail addresses that should be blind carbon copied.
1610     */
1611    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1612
1613    /**
1614     * A constant string holding the desired subject line of a message.
1615     */
1616    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1617
1618    /**
1619     * An Intent describing the choices you would like shown with
1620     * {@link #ACTION_PICK_ACTIVITY}.
1621     */
1622    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1623
1624    /**
1625     * A CharSequence dialog title to provide to the user when used with a
1626     * {@link #ACTION_CHOOSER}.
1627     */
1628    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1629
1630    /**
1631     * A {@link android.view.KeyEvent} object containing the event that
1632     * triggered the creation of the Intent it is in.
1633     */
1634    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1635
1636    /**
1637     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1638     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
1639     * of restarting the application.
1640     */
1641    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
1642
1643    /**
1644     * A String holding the phone number originally entered in
1645     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
1646     * number to call in a {@link android.content.Intent#ACTION_CALL}.
1647     */
1648    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
1649    /**
1650     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
1651     * intents to supply the uid the package had been assigned.  Also an optional
1652     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1653     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
1654     * purpose.
1655     */
1656    public static final String EXTRA_UID = "android.intent.extra.UID";
1657
1658    /**
1659     * Used as an int extra field in {@link android.app.AlarmManager} intents
1660     * to tell the application being invoked how many pending alarms are being
1661     * delievered with the intent.  For one-shot alarms this will always be 1.
1662     * For recurring alarms, this might be greater than 1 if the device was
1663     * asleep or powered off at the time an earlier alarm would have been
1664     * delivered.
1665     */
1666    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
1667
1668    // ---------------------------------------------------------------------
1669    // ---------------------------------------------------------------------
1670    // Intent flags (see mFlags variable).
1671
1672    /**
1673     * If set, the recipient of this Intent will be granted permission to
1674     * perform read operations on the Uri in the Intent's data.
1675     */
1676    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
1677    /**
1678     * If set, the recipient of this Intent will be granted permission to
1679     * perform write operations on the Uri in the Intent's data.
1680     */
1681    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
1682    /**
1683     * Can be set by the caller to indicate that this Intent is coming from
1684     * a background operation, not from direct user interaction.
1685     */
1686    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
1687    /**
1688     * A flag you can enable for debugging: when set, log messages will be
1689     * printed during the resolution of this intent to show you what has
1690     * been found to create the final resolved list.
1691     */
1692    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
1693
1694    /**
1695     * If set, the new activity is not kept in the history stack.
1696     */
1697    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
1698    /**
1699     * If set, the activity will not be launched if it is already running
1700     * at the top of the history stack.
1701     */
1702    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
1703    /**
1704     * If set, this activity will become the start of a new task on this
1705     * history stack.  A task (from the activity that started it to the
1706     * next task activity) defines an atomic group of activities that the
1707     * user can move to.  Tasks can be moved to the foreground and background;
1708     * all of the activities inside of a particular task always remain in
1709     * the same order.  See the
1710     * <a href="{@docRoot}intro/appmodel.html">Application Model</a>
1711     * documentation for more details on tasks.
1712     *
1713     * <p>This flag is generally used by activities that want
1714     * to present a "launcher" style behavior: they give the user a list of
1715     * separate things that can be done, which otherwise run completely
1716     * independently of the activity launching them.
1717     *
1718     * <p>When using this flag, if a task is already running for the activity
1719     * you are now starting, then a new activity will not be started; instead,
1720     * the current task will simply be brought to the front of the screen with
1721     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
1722     * to disable this behavior.
1723     *
1724     * <p>This flag can not be used when the caller is requesting a result from
1725     * the activity being launched.
1726     */
1727    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
1728    /**
1729     * <strong>Do not use this flag unless you are implementing your own
1730     * top-level application launcher.</strong>  Used in conjunction with
1731     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
1732     * behavior of bringing an existing task to the foreground.  When set,
1733     * a new task is <em>always</em> started to host the Activity for the
1734     * Intent, regardless of whether there is already an existing task running
1735     * the same thing.
1736     *
1737     * <p><strong>Because the default system does not include graphical task management,
1738     * you should not use this flag unless you provide some way for a user to
1739     * return back to the tasks you have launched.</strong>
1740     *
1741     * <p>This flag is ignored if
1742     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
1743     *
1744     * <p>See the
1745     * <a href="{@docRoot}intro/appmodel.html">Application Model</a>
1746     * documentation for more details on tasks.
1747     */
1748    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
1749    /**
1750     * If set, and the activity being launched is already running in the
1751     * current task, then instead of launching a new instance of that activity,
1752     * all of the other activities on top of it will be closed and this Intent
1753     * will be delivered to the (now on top) old activity as a new Intent.
1754     *
1755     * <p>For example, consider a task consisting of the activities: A, B, C, D.
1756     * If D calls startActivity() with an Intent that resolves to the component
1757     * of activity B, then C and D will be finished and B receive the given
1758     * Intent, resulting in the stack now being: A, B.
1759     *
1760     * <p>The currently running instance of task B in the above example will
1761     * either receiving the new intent you are starting here in its
1762     * onNewIntent() method, or be itself finished and restarting with the
1763     * new intent.  If it has declared its launch mode to be "multiple" (the
1764     * default) it will be finished and re-created; for all other launch modes
1765     * it will receive the Intent in the current instance.
1766     *
1767     * <p>This launch mode can also be used to good effect in conjunction with
1768     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
1769     * of a task, it will bring any currently running instance of that task
1770     * to the foreground, and then clear it to its root state.  This is
1771     * especially useful, for example, when launching an activity from the
1772     * notification manager.
1773     *
1774     * <p>See the
1775     * <a href="{@docRoot}intro/appmodel.html">Application Model</a>
1776     * documentation for more details on tasks.
1777     */
1778    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
1779    /**
1780     * If set and this intent is being used to launch a new activity from an
1781     * existing one, then the reply target of the existing activity will be
1782     * transfered to the new activity.  This way the new activity can call
1783     * {@link android.app.Activity#setResult} and have that result sent back to
1784     * the reply target of the original activity.
1785     */
1786    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
1787    /**
1788     * If set and this intent is being used to launch a new activity from an
1789     * existing one, the current activity will not be counted as the top
1790     * activity for deciding whether the new intent should be delivered to
1791     * the top instead of starting a new one.  The previous activity will
1792     * be used as the top, with the assumption being that the current activity
1793     * will finish itself immediately.
1794     */
1795    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
1796    /**
1797     * If set, the new activity is not kept in the list of recently launched
1798     * activities.
1799     */
1800    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
1801    /**
1802     * This flag is not normally set by application code, but set for you by
1803     * the system as described in the
1804     * {@link android.R.styleable#AndroidManifestActivity_launchMode
1805     * launchMode} documentation for the singleTask mode.
1806     */
1807    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
1808    /**
1809     * If set, and this activity is either being started in a new task or
1810     * bringing to the top an existing task, then it will be launched as
1811     * the front door of the task.  This will result in the application of
1812     * any affinities needed to have that task in the proper state (either
1813     * moving activities to or from it), or simply resetting that task to
1814     * its initial state if needed.
1815     */
1816    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
1817    /**
1818     * If set, this activity is being launched from history (longpress home key).
1819     */
1820    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
1821
1822    /**
1823     * If set, when sending a broadcast only registered receivers will be
1824     * called -- no BroadcastReceiver components will be launched.
1825     */
1826    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
1827
1828    // ---------------------------------------------------------------------
1829
1830    private String mAction;
1831    private Uri mData;
1832    private String mType;
1833    private ComponentName mComponent;
1834    private int mFlags;
1835    private HashSet<String> mCategories;
1836    private Bundle mExtras;
1837
1838    // ---------------------------------------------------------------------
1839
1840    /**
1841     * Create an empty intent.
1842     */
1843    public Intent() {
1844    }
1845
1846    /**
1847     * Copy constructor.
1848     */
1849    public Intent(Intent o) {
1850        this.mAction = o.mAction;
1851        this.mData = o.mData;
1852        this.mType = o.mType;
1853        this.mComponent = o.mComponent;
1854        this.mFlags = o.mFlags;
1855        if (o.mCategories != null) {
1856            this.mCategories = new HashSet<String>(o.mCategories);
1857        }
1858        if (o.mExtras != null) {
1859            this.mExtras = new Bundle(o.mExtras);
1860        }
1861    }
1862
1863    @Override
1864    public Object clone() {
1865        return new Intent(this);
1866    }
1867
1868    private Intent(Intent o, boolean all) {
1869        this.mAction = o.mAction;
1870        this.mData = o.mData;
1871        this.mType = o.mType;
1872        this.mComponent = o.mComponent;
1873        if (o.mCategories != null) {
1874            this.mCategories = new HashSet<String>(o.mCategories);
1875        }
1876    }
1877
1878    /**
1879     * Make a clone of only the parts of the Intent that are relevant for
1880     * filter matching: the action, data, type, component, and categories.
1881     */
1882    public Intent cloneFilter() {
1883        return new Intent(this, false);
1884    }
1885
1886    /**
1887     * Create an intent with a given action.  All other fields (data, type,
1888     * class) are null.  Note that the action <em>must</em> be in a
1889     * namespace because Intents are used globally in the system -- for
1890     * example the system VIEW action is android.intent.action.VIEW; an
1891     * application's custom action would be something like
1892     * com.google.app.myapp.CUSTOM_ACTION.
1893     *
1894     * @param action The Intent action, such as ACTION_VIEW.
1895     */
1896    public Intent(String action) {
1897        mAction = action;
1898    }
1899
1900    /**
1901     * Create an intent with a given action and for a given data url.  Note
1902     * that the action <em>must</em> be in a namespace because Intents are
1903     * used globally in the system -- for example the system VIEW action is
1904     * android.intent.action.VIEW; an application's custom action would be
1905     * something like com.google.app.myapp.CUSTOM_ACTION.
1906     *
1907     * @param action The Intent action, such as ACTION_VIEW.
1908     * @param uri The Intent data URI.
1909     */
1910    public Intent(String action, Uri uri) {
1911        mAction = action;
1912        mData = uri;
1913    }
1914
1915    /**
1916     * Create an intent for a specific component.  All other fields (action, data,
1917     * type, class) are null, though they can be modified later with explicit
1918     * calls.  This provides a convenient way to create an intent that is
1919     * intended to execute a hard-coded class name, rather than relying on the
1920     * system to find an appropriate class for you; see {@link #setComponent}
1921     * for more information on the repercussions of this.
1922     *
1923     * @param packageContext A Context of the application package implementing
1924     * this class.
1925     * @param cls The component class that is to be used for the intent.
1926     *
1927     * @see #setClass
1928     * @see #setComponent
1929     * @see #Intent(String, android.net.Uri , Context, Class)
1930     */
1931    public Intent(Context packageContext, Class<?> cls) {
1932        mComponent = new ComponentName(packageContext, cls);
1933    }
1934
1935    /**
1936     * Create an intent for a specific component with a specified action and data.
1937     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
1938     * construct the Intent and then calling {@link #setClass} to set its
1939     * class.
1940     *
1941     * @param action The Intent action, such as ACTION_VIEW.
1942     * @param uri The Intent data URI.
1943     * @param packageContext A Context of the application package implementing
1944     * this class.
1945     * @param cls The component class that is to be used for the intent.
1946     *
1947     * @see #Intent(String, android.net.Uri)
1948     * @see #Intent(Context, Class)
1949     * @see #setClass
1950     * @see #setComponent
1951     */
1952    public Intent(String action, Uri uri,
1953            Context packageContext, Class<?> cls) {
1954        mAction = action;
1955        mData = uri;
1956        mComponent = new ComponentName(packageContext, cls);
1957    }
1958
1959    /**
1960     * Create an intent from a URI.  This URI may encode the action,
1961     * category, and other intent fields, if it was returned by toURI().  If
1962     * the Intent was not generate by toURI(), its data will be the entire URI
1963     * and its action will be ACTION_VIEW.
1964     *
1965     * <p>The URI given here must not be relative -- that is, it must include
1966     * the scheme and full path.
1967     *
1968     * @param uri The URI to turn into an Intent.
1969     *
1970     * @return Intent The newly created Intent object.
1971     *
1972     * @see #toURI
1973     */
1974    public static Intent getIntent(String uri) throws URISyntaxException {
1975        int i = 0;
1976        try {
1977            // simple case
1978            i = uri.lastIndexOf("#");
1979            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
1980
1981            // old format Intent URI
1982            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
1983
1984            // new format
1985            Intent intent = new Intent(ACTION_VIEW);
1986
1987            // fetch data part, if present
1988            if (i > 0) {
1989                intent.mData = Uri.parse(uri.substring(0, i));
1990            }
1991            i += "#Intent;".length();
1992
1993            // loop over contents of Intent, all name=value;
1994            while (!uri.startsWith("end", i)) {
1995                int eq = uri.indexOf('=', i);
1996                int semi = uri.indexOf(';', eq);
1997                String value = uri.substring(eq + 1, semi);
1998
1999                // action
2000                if (uri.startsWith("action=", i)) {
2001                    intent.mAction = value;
2002                }
2003
2004                // categories
2005                else if (uri.startsWith("category=", i)) {
2006                    intent.addCategory(value);
2007                }
2008
2009                // type
2010                else if (uri.startsWith("type=", i)) {
2011                    intent.mType = value;
2012                }
2013
2014                // launch  flags
2015                else if (uri.startsWith("launchFlags=", i)) {
2016                    intent.mFlags = Integer.decode(value).intValue();
2017                }
2018
2019                // component
2020                else if (uri.startsWith("component=", i)) {
2021                    intent.mComponent = ComponentName.unflattenFromString(value);
2022                }
2023
2024                // extra
2025                else {
2026                    String key = Uri.decode(uri.substring(i + 2, eq));
2027                    value = Uri.decode(value);
2028                    // create Bundle if it doesn't already exist
2029                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2030                    Bundle b = intent.mExtras;
2031                    // add EXTRA
2032                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2033                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2034                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2035                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2036                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2037                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2038                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2039                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2040                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2041                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2042                }
2043
2044                // move to the next item
2045                i = semi + 1;
2046            }
2047
2048            return intent;
2049
2050        } catch (IndexOutOfBoundsException e) {
2051            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2052        }
2053    }
2054
2055    public static Intent getIntentOld(String uri) throws URISyntaxException {
2056        Intent intent;
2057
2058        int i = uri.lastIndexOf('#');
2059        if (i >= 0) {
2060            Uri data = null;
2061            String action = null;
2062            if (i > 0) {
2063                data = Uri.parse(uri.substring(0, i));
2064            }
2065
2066            i++;
2067
2068            if (uri.regionMatches(i, "action(", 0, 7)) {
2069                i += 7;
2070                int j = uri.indexOf(')', i);
2071                action = uri.substring(i, j);
2072                i = j + 1;
2073            }
2074
2075            intent = new Intent(action, data);
2076
2077            if (uri.regionMatches(i, "categories(", 0, 11)) {
2078                i += 11;
2079                int j = uri.indexOf(')', i);
2080                while (i < j) {
2081                    int sep = uri.indexOf('!', i);
2082                    if (sep < 0) sep = j;
2083                    if (i < sep) {
2084                        intent.addCategory(uri.substring(i, sep));
2085                    }
2086                    i = sep + 1;
2087                }
2088                i = j + 1;
2089            }
2090
2091            if (uri.regionMatches(i, "type(", 0, 5)) {
2092                i += 5;
2093                int j = uri.indexOf(')', i);
2094                intent.mType = uri.substring(i, j);
2095                i = j + 1;
2096            }
2097
2098            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2099                i += 12;
2100                int j = uri.indexOf(')', i);
2101                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2102                i = j + 1;
2103            }
2104
2105            if (uri.regionMatches(i, "component(", 0, 10)) {
2106                i += 10;
2107                int j = uri.indexOf(')', i);
2108                int sep = uri.indexOf('!', i);
2109                if (sep >= 0 && sep < j) {
2110                    String pkg = uri.substring(i, sep);
2111                    String cls = uri.substring(sep + 1, j);
2112                    intent.mComponent = new ComponentName(pkg, cls);
2113                }
2114                i = j + 1;
2115            }
2116
2117            if (uri.regionMatches(i, "extras(", 0, 7)) {
2118                i += 7;
2119
2120                final int closeParen = uri.indexOf(')', i);
2121                if (closeParen == -1) throw new URISyntaxException(uri,
2122                        "EXTRA missing trailing ')'", i);
2123
2124                while (i < closeParen) {
2125                    // fetch the key value
2126                    int j = uri.indexOf('=', i);
2127                    if (j <= i + 1 || i >= closeParen) {
2128                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2129                    }
2130                    char type = uri.charAt(i);
2131                    i++;
2132                    String key = uri.substring(i, j);
2133                    i = j + 1;
2134
2135                    // get type-value
2136                    j = uri.indexOf('!', i);
2137                    if (j == -1 || j >= closeParen) j = closeParen;
2138                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2139                    String value = uri.substring(i, j);
2140                    i = j;
2141
2142                    // create Bundle if it doesn't already exist
2143                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2144
2145                    // add item to bundle
2146                    try {
2147                        switch (type) {
2148                            case 'S':
2149                                intent.mExtras.putString(key, Uri.decode(value));
2150                                break;
2151                            case 'B':
2152                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2153                                break;
2154                            case 'b':
2155                                intent.mExtras.putByte(key, Byte.parseByte(value));
2156                                break;
2157                            case 'c':
2158                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2159                                break;
2160                            case 'd':
2161                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2162                                break;
2163                            case 'f':
2164                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2165                                break;
2166                            case 'i':
2167                                intent.mExtras.putInt(key, Integer.parseInt(value));
2168                                break;
2169                            case 'l':
2170                                intent.mExtras.putLong(key, Long.parseLong(value));
2171                                break;
2172                            case 's':
2173                                intent.mExtras.putShort(key, Short.parseShort(value));
2174                                break;
2175                            default:
2176                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2177                        }
2178                    } catch (NumberFormatException e) {
2179                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2180                    }
2181
2182                    char ch = uri.charAt(i);
2183                    if (ch == ')') break;
2184                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2185                    i++;
2186                }
2187            }
2188
2189            if (intent.mAction == null) {
2190                // By default, if no action is specified, then use VIEW.
2191                intent.mAction = ACTION_VIEW;
2192            }
2193
2194        } else {
2195            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2196        }
2197
2198        return intent;
2199    }
2200
2201    /**
2202     * Retrieve the general action to be performed, such as
2203     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2204     * the information in the intent should be interpreted -- most importantly,
2205     * what to do with the data returned by {@link #getData}.
2206     *
2207     * @return The action of this intent or null if none is specified.
2208     *
2209     * @see #setAction
2210     */
2211    public String getAction() {
2212        return mAction;
2213    }
2214
2215    /**
2216     * Retrieve data this intent is operating on.  This URI specifies the name
2217     * of the data; often it uses the content: scheme, specifying data in a
2218     * content provider.  Other schemes may be handled by specific activities,
2219     * such as http: by the web browser.
2220     *
2221     * @return The URI of the data this intent is targeting or null.
2222     *
2223     * @see #getScheme
2224     * @see #setData
2225     */
2226    public Uri getData() {
2227        return mData;
2228    }
2229
2230    /**
2231     * The same as {@link #getData()}, but returns the URI as an encoded
2232     * String.
2233     */
2234    public String getDataString() {
2235        return mData != null ? mData.toString() : null;
2236    }
2237
2238    /**
2239     * Return the scheme portion of the intent's data.  If the data is null or
2240     * does not include a scheme, null is returned.  Otherwise, the scheme
2241     * prefix without the final ':' is returned, i.e. "http".
2242     *
2243     * <p>This is the same as calling getData().getScheme() (and checking for
2244     * null data).
2245     *
2246     * @return The scheme of this intent.
2247     *
2248     * @see #getData
2249     */
2250    public String getScheme() {
2251        return mData != null ? mData.getScheme() : null;
2252    }
2253
2254    /**
2255     * Retrieve any explicit MIME type included in the intent.  This is usually
2256     * null, as the type is determined by the intent data.
2257     *
2258     * @return If a type was manually set, it is returned; else null is
2259     *         returned.
2260     *
2261     * @see #resolveType(ContentResolver)
2262     * @see #setType
2263     */
2264    public String getType() {
2265        return mType;
2266    }
2267
2268    /**
2269     * Return the MIME data type of this intent.  If the type field is
2270     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2271     * the type of that data is returned.  If neither fields are set, a null is
2272     * returned.
2273     *
2274     * @return The MIME type of this intent.
2275     *
2276     * @see #getType
2277     * @see #resolveType(ContentResolver)
2278     */
2279    public String resolveType(Context context) {
2280        return resolveType(context.getContentResolver());
2281    }
2282
2283    /**
2284     * Return the MIME data type of this intent.  If the type field is
2285     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2286     * the type of that data is returned.  If neither fields are set, a null is
2287     * returned.
2288     *
2289     * @param resolver A ContentResolver that can be used to determine the MIME
2290     *                 type of the intent's data.
2291     *
2292     * @return The MIME type of this intent.
2293     *
2294     * @see #getType
2295     * @see #resolveType(Context)
2296     */
2297    public String resolveType(ContentResolver resolver) {
2298        if (mType != null) {
2299            return mType;
2300        }
2301        if (mData != null) {
2302            if ("content".equals(mData.getScheme())) {
2303                return resolver.getType(mData);
2304            }
2305        }
2306        return null;
2307    }
2308
2309    /**
2310     * Return the MIME data type of this intent, only if it will be needed for
2311     * intent resolution.  This is not generally useful for application code;
2312     * it is used by the frameworks for communicating with back-end system
2313     * services.
2314     *
2315     * @param resolver A ContentResolver that can be used to determine the MIME
2316     *                 type of the intent's data.
2317     *
2318     * @return The MIME type of this intent, or null if it is unknown or not
2319     *         needed.
2320     */
2321    public String resolveTypeIfNeeded(ContentResolver resolver) {
2322        if (mComponent != null) {
2323            return mType;
2324        }
2325        return resolveType(resolver);
2326    }
2327
2328    /**
2329     * Check if an category exists in the intent.
2330     *
2331     * @param category The category to check.
2332     *
2333     * @return boolean True if the intent contains the category, else false.
2334     *
2335     * @see #getCategories
2336     * @see #addCategory
2337     */
2338    public boolean hasCategory(String category) {
2339        return mCategories != null && mCategories.contains(category);
2340    }
2341
2342    /**
2343     * Return the set of all categories in the intent.  If there are no categories,
2344     * returns NULL.
2345     *
2346     * @return Set The set of categories you can examine.  Do not modify!
2347     *
2348     * @see #hasCategory
2349     * @see #addCategory
2350     */
2351    public Set<String> getCategories() {
2352        return mCategories;
2353    }
2354
2355    /**
2356     * Sets the ClassLoader that will be used when unmarshalling
2357     * any Parcelable values from the extras of this Intent.
2358     *
2359     * @param loader a ClassLoader, or null to use the default loader
2360     * at the time of unmarshalling.
2361     */
2362    public void setExtrasClassLoader(ClassLoader loader) {
2363        if (mExtras != null) {
2364            mExtras.setClassLoader(loader);
2365        }
2366    }
2367
2368    /**
2369     * Returns true if an extra value is associated with the given name.
2370     * @param name the extra's name
2371     * @return true if the given extra is present.
2372     */
2373    public boolean hasExtra(String name) {
2374        return mExtras != null && mExtras.containsKey(name);
2375    }
2376
2377    /**
2378     * Returns true if the Intent's extras contain a parcelled file descriptor.
2379     * @return true if the Intent contains a parcelled file descriptor.
2380     */
2381    public boolean hasFileDescriptors() {
2382        return mExtras != null && mExtras.hasFileDescriptors();
2383    }
2384
2385    /**
2386     * Retrieve extended data from the intent.
2387     *
2388     * @param name The name of the desired item.
2389     *
2390     * @return the value of an item that previously added with putExtra()
2391     * or null if none was found.
2392     *
2393     * @deprecated
2394     * @hide
2395     */
2396    @Deprecated
2397    public Object getExtra(String name) {
2398        return getExtra(name, null);
2399    }
2400
2401    /**
2402     * Retrieve extended data from the intent.
2403     *
2404     * @param name The name of the desired item.
2405     * @param defaultValue the value to be returned if no value of the desired
2406     * type is stored with the given name.
2407     *
2408     * @return the value of an item that previously added with putExtra()
2409     * or the default value if none was found.
2410     *
2411     * @see #putExtra(String, boolean)
2412     */
2413    public boolean getBooleanExtra(String name, boolean defaultValue) {
2414        return mExtras == null ? defaultValue :
2415            mExtras.getBoolean(name, defaultValue);
2416    }
2417
2418    /**
2419     * Retrieve extended data from the intent.
2420     *
2421     * @param name The name of the desired item.
2422     * @param defaultValue the value to be returned if no value of the desired
2423     * type is stored with the given name.
2424     *
2425     * @return the value of an item that previously added with putExtra()
2426     * or the default value if none was found.
2427     *
2428     * @see #putExtra(String, byte)
2429     */
2430    public byte getByteExtra(String name, byte defaultValue) {
2431        return mExtras == null ? defaultValue :
2432            mExtras.getByte(name, defaultValue);
2433    }
2434
2435    /**
2436     * Retrieve extended data from the intent.
2437     *
2438     * @param name The name of the desired item.
2439     * @param defaultValue the value to be returned if no value of the desired
2440     * type is stored with the given name.
2441     *
2442     * @return the value of an item that previously added with putExtra()
2443     * or the default value if none was found.
2444     *
2445     * @see #putExtra(String, short)
2446     */
2447    public short getShortExtra(String name, short defaultValue) {
2448        return mExtras == null ? defaultValue :
2449            mExtras.getShort(name, defaultValue);
2450    }
2451
2452    /**
2453     * Retrieve extended data from the intent.
2454     *
2455     * @param name The name of the desired item.
2456     * @param defaultValue the value to be returned if no value of the desired
2457     * type is stored with the given name.
2458     *
2459     * @return the value of an item that previously added with putExtra()
2460     * or the default value if none was found.
2461     *
2462     * @see #putExtra(String, char)
2463     */
2464    public char getCharExtra(String name, char defaultValue) {
2465        return mExtras == null ? defaultValue :
2466            mExtras.getChar(name, defaultValue);
2467    }
2468
2469    /**
2470     * Retrieve extended data from the intent.
2471     *
2472     * @param name The name of the desired item.
2473     * @param defaultValue the value to be returned if no value of the desired
2474     * type is stored with the given name.
2475     *
2476     * @return the value of an item that previously added with putExtra()
2477     * or the default value if none was found.
2478     *
2479     * @see #putExtra(String, int)
2480     */
2481    public int getIntExtra(String name, int defaultValue) {
2482        return mExtras == null ? defaultValue :
2483            mExtras.getInt(name, defaultValue);
2484    }
2485
2486    /**
2487     * Retrieve extended data from the intent.
2488     *
2489     * @param name The name of the desired item.
2490     * @param defaultValue the value to be returned if no value of the desired
2491     * type is stored with the given name.
2492     *
2493     * @return the value of an item that previously added with putExtra()
2494     * or the default value if none was found.
2495     *
2496     * @see #putExtra(String, long)
2497     */
2498    public long getLongExtra(String name, long defaultValue) {
2499        return mExtras == null ? defaultValue :
2500            mExtras.getLong(name, defaultValue);
2501    }
2502
2503    /**
2504     * Retrieve extended data from the intent.
2505     *
2506     * @param name The name of the desired item.
2507     * @param defaultValue the value to be returned if no value of the desired
2508     * type is stored with the given name.
2509     *
2510     * @return the value of an item that previously added with putExtra(),
2511     * or the default value if no such item is present
2512     *
2513     * @see #putExtra(String, float)
2514     */
2515    public float getFloatExtra(String name, float defaultValue) {
2516        return mExtras == null ? defaultValue :
2517            mExtras.getFloat(name, defaultValue);
2518    }
2519
2520    /**
2521     * Retrieve extended data from the intent.
2522     *
2523     * @param name The name of the desired item.
2524     * @param defaultValue the value to be returned if no value of the desired
2525     * type is stored with the given name.
2526     *
2527     * @return the value of an item that previously added with putExtra()
2528     * or the default value if none was found.
2529     *
2530     * @see #putExtra(String, double)
2531     */
2532    public double getDoubleExtra(String name, double defaultValue) {
2533        return mExtras == null ? defaultValue :
2534            mExtras.getDouble(name, defaultValue);
2535    }
2536
2537    /**
2538     * Retrieve extended data from the intent.
2539     *
2540     * @param name The name of the desired item.
2541     *
2542     * @return the value of an item that previously added with putExtra()
2543     * or null if no String value was found.
2544     *
2545     * @see #putExtra(String, String)
2546     */
2547    public String getStringExtra(String name) {
2548        return mExtras == null ? null : mExtras.getString(name);
2549    }
2550
2551    /**
2552     * Retrieve extended data from the intent.
2553     *
2554     * @param name The name of the desired item.
2555     *
2556     * @return the value of an item that previously added with putExtra()
2557     * or null if no CharSequence value was found.
2558     *
2559     * @see #putExtra(String, CharSequence)
2560     */
2561    public CharSequence getCharSequenceExtra(String name) {
2562        return mExtras == null ? null : mExtras.getCharSequence(name);
2563    }
2564
2565    /**
2566     * Retrieve extended data from the intent.
2567     *
2568     * @param name The name of the desired item.
2569     *
2570     * @return the value of an item that previously added with putExtra()
2571     * or null if no Parcelable value was found.
2572     *
2573     * @see #putExtra(String, Parcelable)
2574     */
2575    public <T extends Parcelable> T getParcelableExtra(String name) {
2576        return mExtras == null ? null : mExtras.<T>getParcelable(name);
2577    }
2578
2579    /**
2580     * Retrieve extended data from the intent.
2581     *
2582     * @param name The name of the desired item.
2583     *
2584     * @return the value of an item that previously added with putExtra()
2585     * or null if no Parcelable[] value was found.
2586     *
2587     * @see #putExtra(String, Parcelable[])
2588     */
2589    public Parcelable[] getParcelableArrayExtra(String name) {
2590        return mExtras == null ? null : mExtras.getParcelableArray(name);
2591    }
2592
2593    /**
2594     * Retrieve extended data from the intent.
2595     *
2596     * @param name The name of the desired item.
2597     *
2598     * @return the value of an item that previously added with putExtra()
2599     * or null if no ArrayList<Parcelable> value was found.
2600     *
2601     * @see #putParcelableArrayListExtra(String, ArrayList)
2602     */
2603    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
2604        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
2605    }
2606
2607    /**
2608     * Retrieve extended data from the intent.
2609     *
2610     * @param name The name of the desired item.
2611     *
2612     * @return the value of an item that previously added with putExtra()
2613     * or null if no Serializable value was found.
2614     *
2615     * @see #putExtra(String, Serializable)
2616     */
2617    public Serializable getSerializableExtra(String name) {
2618        return mExtras == null ? null : mExtras.getSerializable(name);
2619    }
2620
2621    /**
2622     * Retrieve extended data from the intent.
2623     *
2624     * @param name The name of the desired item.
2625     *
2626     * @return the value of an item that previously added with putExtra()
2627     * or null if no ArrayList<Integer> value was found.
2628     *
2629     * @see #putIntegerArrayListExtra(String, ArrayList)
2630     */
2631    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
2632        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
2633    }
2634
2635    /**
2636     * Retrieve extended data from the intent.
2637     *
2638     * @param name The name of the desired item.
2639     *
2640     * @return the value of an item that previously added with putExtra()
2641     * or null if no ArrayList<String> value was found.
2642     *
2643     * @see #putStringArrayListExtra(String, ArrayList)
2644     */
2645    public ArrayList<String> getStringArrayListExtra(String name) {
2646        return mExtras == null ? null : mExtras.getStringArrayList(name);
2647    }
2648
2649    /**
2650     * Retrieve extended data from the intent.
2651     *
2652     * @param name The name of the desired item.
2653     *
2654     * @return the value of an item that previously added with putExtra()
2655     * or null if no boolean array value was found.
2656     *
2657     * @see #putExtra(String, boolean[])
2658     */
2659    public boolean[] getBooleanArrayExtra(String name) {
2660        return mExtras == null ? null : mExtras.getBooleanArray(name);
2661    }
2662
2663    /**
2664     * Retrieve extended data from the intent.
2665     *
2666     * @param name The name of the desired item.
2667     *
2668     * @return the value of an item that previously added with putExtra()
2669     * or null if no byte array value was found.
2670     *
2671     * @see #putExtra(String, byte[])
2672     */
2673    public byte[] getByteArrayExtra(String name) {
2674        return mExtras == null ? null : mExtras.getByteArray(name);
2675    }
2676
2677    /**
2678     * Retrieve extended data from the intent.
2679     *
2680     * @param name The name of the desired item.
2681     *
2682     * @return the value of an item that previously added with putExtra()
2683     * or null if no short array value was found.
2684     *
2685     * @see #putExtra(String, short[])
2686     */
2687    public short[] getShortArrayExtra(String name) {
2688        return mExtras == null ? null : mExtras.getShortArray(name);
2689    }
2690
2691    /**
2692     * Retrieve extended data from the intent.
2693     *
2694     * @param name The name of the desired item.
2695     *
2696     * @return the value of an item that previously added with putExtra()
2697     * or null if no char array value was found.
2698     *
2699     * @see #putExtra(String, char[])
2700     */
2701    public char[] getCharArrayExtra(String name) {
2702        return mExtras == null ? null : mExtras.getCharArray(name);
2703    }
2704
2705    /**
2706     * Retrieve extended data from the intent.
2707     *
2708     * @param name The name of the desired item.
2709     *
2710     * @return the value of an item that previously added with putExtra()
2711     * or null if no int array value was found.
2712     *
2713     * @see #putExtra(String, int[])
2714     */
2715    public int[] getIntArrayExtra(String name) {
2716        return mExtras == null ? null : mExtras.getIntArray(name);
2717    }
2718
2719    /**
2720     * Retrieve extended data from the intent.
2721     *
2722     * @param name The name of the desired item.
2723     *
2724     * @return the value of an item that previously added with putExtra()
2725     * or null if no long array value was found.
2726     *
2727     * @see #putExtra(String, long[])
2728     */
2729    public long[] getLongArrayExtra(String name) {
2730        return mExtras == null ? null : mExtras.getLongArray(name);
2731    }
2732
2733    /**
2734     * Retrieve extended data from the intent.
2735     *
2736     * @param name The name of the desired item.
2737     *
2738     * @return the value of an item that previously added with putExtra()
2739     * or null if no float array value was found.
2740     *
2741     * @see #putExtra(String, float[])
2742     */
2743    public float[] getFloatArrayExtra(String name) {
2744        return mExtras == null ? null : mExtras.getFloatArray(name);
2745    }
2746
2747    /**
2748     * Retrieve extended data from the intent.
2749     *
2750     * @param name The name of the desired item.
2751     *
2752     * @return the value of an item that previously added with putExtra()
2753     * or null if no double array value was found.
2754     *
2755     * @see #putExtra(String, double[])
2756     */
2757    public double[] getDoubleArrayExtra(String name) {
2758        return mExtras == null ? null : mExtras.getDoubleArray(name);
2759    }
2760
2761    /**
2762     * Retrieve extended data from the intent.
2763     *
2764     * @param name The name of the desired item.
2765     *
2766     * @return the value of an item that previously added with putExtra()
2767     * or null if no String array value was found.
2768     *
2769     * @see #putExtra(String, String[])
2770     */
2771    public String[] getStringArrayExtra(String name) {
2772        return mExtras == null ? null : mExtras.getStringArray(name);
2773    }
2774
2775    /**
2776     * Retrieve extended data from the intent.
2777     *
2778     * @param name The name of the desired item.
2779     *
2780     * @return the value of an item that previously added with putExtra()
2781     * or null if no Bundle value was found.
2782     *
2783     * @see #putExtra(String, Bundle)
2784     */
2785    public Bundle getBundleExtra(String name) {
2786        return mExtras == null ? null : mExtras.getBundle(name);
2787    }
2788
2789    /**
2790     * Retrieve extended data from the intent.
2791     *
2792     * @param name The name of the desired item.
2793     *
2794     * @return the value of an item that previously added with putExtra()
2795     * or null if no IBinder value was found.
2796     *
2797     * @see #putExtra(String, IBinder)
2798     *
2799     * @deprecated
2800     * @hide
2801     */
2802    @Deprecated
2803    public IBinder getIBinderExtra(String name) {
2804        return mExtras == null ? null : mExtras.getIBinder(name);
2805    }
2806
2807    /**
2808     * Retrieve extended data from the intent.
2809     *
2810     * @param name The name of the desired item.
2811     * @param defaultValue The default value to return in case no item is
2812     * associated with the key 'name'
2813     *
2814     * @return the value of an item that previously added with putExtra()
2815     * or defaultValue if none was found.
2816     *
2817     * @see #putExtra
2818     *
2819     * @deprecated
2820     * @hide
2821     */
2822    @Deprecated
2823    public Object getExtra(String name, Object defaultValue) {
2824        Object result = defaultValue;
2825        if (mExtras != null) {
2826            Object result2 = mExtras.get(name);
2827            if (result2 != null) {
2828                result = result2;
2829            }
2830        }
2831
2832        return result;
2833    }
2834
2835    /**
2836     * Retrieves a map of extended data from the intent.
2837     *
2838     * @return the map of all extras previously added with putExtra(),
2839     * or null if none have been added.
2840     */
2841    public Bundle getExtras() {
2842        return (mExtras != null)
2843                ? new Bundle(mExtras)
2844                : null;
2845    }
2846
2847    /**
2848     * Retrieve any special flags associated with this intent.  You will
2849     * normally just set them with {@link #setFlags} and let the system
2850     * take the appropriate action with them.
2851     *
2852     * @return int The currently set flags.
2853     *
2854     * @see #setFlags
2855     */
2856    public int getFlags() {
2857        return mFlags;
2858    }
2859
2860    /**
2861     * Retrieve the concrete component associated with the intent.  When receiving
2862     * an intent, this is the component that was found to best handle it (that is,
2863     * yourself) and will always be non-null; in all other cases it will be
2864     * null unless explicitly set.
2865     *
2866     * @return The name of the application component to handle the intent.
2867     *
2868     * @see #resolveActivity
2869     * @see #setComponent
2870     */
2871    public ComponentName getComponent() {
2872        return mComponent;
2873    }
2874
2875    /**
2876     * Return the Activity component that should be used to handle this intent.
2877     * The appropriate component is determined based on the information in the
2878     * intent, evaluated as follows:
2879     *
2880     * <p>If {@link #getComponent} returns an explicit class, that is returned
2881     * without any further consideration.
2882     *
2883     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
2884     * category to be considered.
2885     *
2886     * <p>If {@link #getAction} is non-NULL, the activity must handle this
2887     * action.
2888     *
2889     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
2890     * this type.
2891     *
2892     * <p>If {@link #addCategory} has added any categories, the activity must
2893     * handle ALL of the categories specified.
2894     *
2895     * <p>If there are no activities that satisfy all of these conditions, a
2896     * null string is returned.
2897     *
2898     * <p>If multiple activities are found to satisfy the intent, the one with
2899     * the highest priority will be used.  If there are multiple activities
2900     * with the same priority, the system will either pick the best activity
2901     * based on user preference, or resolve to a system class that will allow
2902     * the user to pick an activity and forward from there.
2903     *
2904     * <p>This method is implemented simply by calling
2905     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
2906     * true.</p>
2907     * <p> This API is called for you as part of starting an activity from an
2908     * intent.  You do not normally need to call it yourself.</p>
2909     *
2910     * @param pm The package manager with which to resolve the Intent.
2911     *
2912     * @return Name of the component implementing an activity that can
2913     *         display the intent.
2914     *
2915     * @see #setComponent
2916     * @see #getComponent
2917     * @see #resolveActivityInfo
2918     */
2919    public ComponentName resolveActivity(PackageManager pm) {
2920        if (mComponent != null) {
2921            return mComponent;
2922        }
2923
2924        ResolveInfo info = pm.resolveActivity(
2925            this, PackageManager.MATCH_DEFAULT_ONLY);
2926        if (info != null) {
2927            return new ComponentName(
2928                    info.activityInfo.applicationInfo.packageName,
2929                    info.activityInfo.name);
2930        }
2931
2932        return null;
2933    }
2934
2935    /**
2936     * Resolve the Intent into an {@link ActivityInfo}
2937     * describing the activity that should execute the intent.  Resolution
2938     * follows the same rules as described for {@link #resolveActivity}, but
2939     * you get back the completely information about the resolved activity
2940     * instead of just its class name.
2941     *
2942     * @param pm The package manager with which to resolve the Intent.
2943     * @param flags Addition information to retrieve as per
2944     * {@link PackageManager#getActivityInfo(ComponentName, int)
2945     * PackageManager.getActivityInfo()}.
2946     *
2947     * @return PackageManager.ActivityInfo
2948     *
2949     * @see #resolveActivity
2950     */
2951    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
2952        ActivityInfo ai = null;
2953        if (mComponent != null) {
2954            try {
2955                ai = pm.getActivityInfo(mComponent, flags);
2956            } catch (PackageManager.NameNotFoundException e) {
2957                // ignore
2958            }
2959        } else {
2960            ResolveInfo info = pm.resolveActivity(
2961                this, PackageManager.MATCH_DEFAULT_ONLY);
2962            if (info != null) {
2963                ai = info.activityInfo;
2964            }
2965        }
2966
2967        return ai;
2968    }
2969
2970    /**
2971     * Set the general action to be performed.
2972     *
2973     * @param action An action name, such as ACTION_VIEW.  Application-specific
2974     *               actions should be prefixed with the vendor's package name.
2975     *
2976     * @return Returns the same Intent object, for chaining multiple calls
2977     * into a single statement.
2978     *
2979     * @see #getAction
2980     */
2981    public Intent setAction(String action) {
2982        mAction = action;
2983        return this;
2984    }
2985
2986    /**
2987     * Set the data this intent is operating on.  This method automatically
2988     * clears any type that was previously set by {@link #setType}.
2989     *
2990     * @param data The URI of the data this intent is now targeting.
2991     *
2992     * @return Returns the same Intent object, for chaining multiple calls
2993     * into a single statement.
2994     *
2995     * @see #getData
2996     * @see #setType
2997     * @see #setDataAndType
2998     */
2999    public Intent setData(Uri data) {
3000        mData = data;
3001        mType = null;
3002        return this;
3003    }
3004
3005    /**
3006     * Set an explicit MIME data type.  This is used to create intents that
3007     * only specify a type and not data, for example to indicate the type of
3008     * data to return.  This method automatically clears any data that was
3009     * previously set by {@link #setData}.
3010     *
3011     * @param type The MIME type of the data being handled by this intent.
3012     *
3013     * @return Returns the same Intent object, for chaining multiple calls
3014     * into a single statement.
3015     *
3016     * @see #getType
3017     * @see #setData
3018     * @see #setDataAndType
3019     */
3020    public Intent setType(String type) {
3021        mData = null;
3022        mType = type;
3023        return this;
3024    }
3025
3026    /**
3027     * (Usually optional) Set the data for the intent along with an explicit
3028     * MIME data type.  This method should very rarely be used -- it allows you
3029     * to override the MIME type that would ordinarily be inferred from the
3030     * data with your own type given here.
3031     *
3032     * @param data The URI of the data this intent is now targeting.
3033     * @param type The MIME type of the data being handled by this intent.
3034     *
3035     * @return Returns the same Intent object, for chaining multiple calls
3036     * into a single statement.
3037     *
3038     * @see #setData
3039     * @see #setType
3040     */
3041    public Intent setDataAndType(Uri data, String type) {
3042        mData = data;
3043        mType = type;
3044        return this;
3045    }
3046
3047    /**
3048     * Add a new category to the intent.  Categories provide additional detail
3049     * about the action the intent is perform.  When resolving an intent, only
3050     * activities that provide <em>all</em> of the requested categories will be
3051     * used.
3052     *
3053     * @param category The desired category.  This can be either one of the
3054     *               predefined Intent categories, or a custom category in your own
3055     *               namespace.
3056     *
3057     * @return Returns the same Intent object, for chaining multiple calls
3058     * into a single statement.
3059     *
3060     * @see #hasCategory
3061     * @see #removeCategory
3062     */
3063    public Intent addCategory(String category) {
3064        if (mCategories == null) {
3065            mCategories = new HashSet<String>();
3066        }
3067        mCategories.add(category);
3068        return this;
3069    }
3070
3071    /**
3072     * Remove an category from an intent.
3073     *
3074     * @param category The category to remove.
3075     *
3076     * @see #addCategory
3077     */
3078    public void removeCategory(String category) {
3079        if (mCategories != null) {
3080            mCategories.remove(category);
3081            if (mCategories.size() == 0) {
3082                mCategories = null;
3083            }
3084        }
3085    }
3086
3087    /**
3088     * Add extended data to the intent.  The name must include a package
3089     * prefix, for example the app com.android.contacts would use names
3090     * like "com.android.contacts.ShowAll".
3091     *
3092     * @param name The name of the extra data, with package prefix.
3093     * @param value The boolean data value.
3094     *
3095     * @return Returns the same Intent object, for chaining multiple calls
3096     * into a single statement.
3097     *
3098     * @see #putExtras
3099     * @see #removeExtra
3100     * @see #getBooleanExtra(String, boolean)
3101     */
3102    public Intent putExtra(String name, boolean value) {
3103        if (mExtras == null) {
3104            mExtras = new Bundle();
3105        }
3106        mExtras.putBoolean(name, value);
3107        return this;
3108    }
3109
3110    /**
3111     * Add extended data to the intent.  The name must include a package
3112     * prefix, for example the app com.android.contacts would use names
3113     * like "com.android.contacts.ShowAll".
3114     *
3115     * @param name The name of the extra data, with package prefix.
3116     * @param value The byte data value.
3117     *
3118     * @return Returns the same Intent object, for chaining multiple calls
3119     * into a single statement.
3120     *
3121     * @see #putExtras
3122     * @see #removeExtra
3123     * @see #getByteExtra(String, byte)
3124     */
3125    public Intent putExtra(String name, byte value) {
3126        if (mExtras == null) {
3127            mExtras = new Bundle();
3128        }
3129        mExtras.putByte(name, value);
3130        return this;
3131    }
3132
3133    /**
3134     * Add extended data to the intent.  The name must include a package
3135     * prefix, for example the app com.android.contacts would use names
3136     * like "com.android.contacts.ShowAll".
3137     *
3138     * @param name The name of the extra data, with package prefix.
3139     * @param value The char data value.
3140     *
3141     * @return Returns the same Intent object, for chaining multiple calls
3142     * into a single statement.
3143     *
3144     * @see #putExtras
3145     * @see #removeExtra
3146     * @see #getCharExtra(String, char)
3147     */
3148    public Intent putExtra(String name, char value) {
3149        if (mExtras == null) {
3150            mExtras = new Bundle();
3151        }
3152        mExtras.putChar(name, value);
3153        return this;
3154    }
3155
3156    /**
3157     * Add extended data to the intent.  The name must include a package
3158     * prefix, for example the app com.android.contacts would use names
3159     * like "com.android.contacts.ShowAll".
3160     *
3161     * @param name The name of the extra data, with package prefix.
3162     * @param value The short data value.
3163     *
3164     * @return Returns the same Intent object, for chaining multiple calls
3165     * into a single statement.
3166     *
3167     * @see #putExtras
3168     * @see #removeExtra
3169     * @see #getShortExtra(String, short)
3170     */
3171    public Intent putExtra(String name, short value) {
3172        if (mExtras == null) {
3173            mExtras = new Bundle();
3174        }
3175        mExtras.putShort(name, value);
3176        return this;
3177    }
3178
3179    /**
3180     * Add extended data to the intent.  The name must include a package
3181     * prefix, for example the app com.android.contacts would use names
3182     * like "com.android.contacts.ShowAll".
3183     *
3184     * @param name The name of the extra data, with package prefix.
3185     * @param value The integer data value.
3186     *
3187     * @return Returns the same Intent object, for chaining multiple calls
3188     * into a single statement.
3189     *
3190     * @see #putExtras
3191     * @see #removeExtra
3192     * @see #getIntExtra(String, int)
3193     */
3194    public Intent putExtra(String name, int value) {
3195        if (mExtras == null) {
3196            mExtras = new Bundle();
3197        }
3198        mExtras.putInt(name, value);
3199        return this;
3200    }
3201
3202    /**
3203     * Add extended data to the intent.  The name must include a package
3204     * prefix, for example the app com.android.contacts would use names
3205     * like "com.android.contacts.ShowAll".
3206     *
3207     * @param name The name of the extra data, with package prefix.
3208     * @param value The long data value.
3209     *
3210     * @return Returns the same Intent object, for chaining multiple calls
3211     * into a single statement.
3212     *
3213     * @see #putExtras
3214     * @see #removeExtra
3215     * @see #getLongExtra(String, long)
3216     */
3217    public Intent putExtra(String name, long value) {
3218        if (mExtras == null) {
3219            mExtras = new Bundle();
3220        }
3221        mExtras.putLong(name, value);
3222        return this;
3223    }
3224
3225    /**
3226     * Add extended data to the intent.  The name must include a package
3227     * prefix, for example the app com.android.contacts would use names
3228     * like "com.android.contacts.ShowAll".
3229     *
3230     * @param name The name of the extra data, with package prefix.
3231     * @param value The float data value.
3232     *
3233     * @return Returns the same Intent object, for chaining multiple calls
3234     * into a single statement.
3235     *
3236     * @see #putExtras
3237     * @see #removeExtra
3238     * @see #getFloatExtra(String, float)
3239     */
3240    public Intent putExtra(String name, float value) {
3241        if (mExtras == null) {
3242            mExtras = new Bundle();
3243        }
3244        mExtras.putFloat(name, value);
3245        return this;
3246    }
3247
3248    /**
3249     * Add extended data to the intent.  The name must include a package
3250     * prefix, for example the app com.android.contacts would use names
3251     * like "com.android.contacts.ShowAll".
3252     *
3253     * @param name The name of the extra data, with package prefix.
3254     * @param value The double data value.
3255     *
3256     * @return Returns the same Intent object, for chaining multiple calls
3257     * into a single statement.
3258     *
3259     * @see #putExtras
3260     * @see #removeExtra
3261     * @see #getDoubleExtra(String, double)
3262     */
3263    public Intent putExtra(String name, double value) {
3264        if (mExtras == null) {
3265            mExtras = new Bundle();
3266        }
3267        mExtras.putDouble(name, value);
3268        return this;
3269    }
3270
3271    /**
3272     * Add extended data to the intent.  The name must include a package
3273     * prefix, for example the app com.android.contacts would use names
3274     * like "com.android.contacts.ShowAll".
3275     *
3276     * @param name The name of the extra data, with package prefix.
3277     * @param value The String data value.
3278     *
3279     * @return Returns the same Intent object, for chaining multiple calls
3280     * into a single statement.
3281     *
3282     * @see #putExtras
3283     * @see #removeExtra
3284     * @see #getStringExtra(String)
3285     */
3286    public Intent putExtra(String name, String value) {
3287        if (mExtras == null) {
3288            mExtras = new Bundle();
3289        }
3290        mExtras.putString(name, value);
3291        return this;
3292    }
3293
3294    /**
3295     * Add extended data to the intent.  The name must include a package
3296     * prefix, for example the app com.android.contacts would use names
3297     * like "com.android.contacts.ShowAll".
3298     *
3299     * @param name The name of the extra data, with package prefix.
3300     * @param value The CharSequence data value.
3301     *
3302     * @return Returns the same Intent object, for chaining multiple calls
3303     * into a single statement.
3304     *
3305     * @see #putExtras
3306     * @see #removeExtra
3307     * @see #getCharSequenceExtra(String)
3308     */
3309    public Intent putExtra(String name, CharSequence value) {
3310        if (mExtras == null) {
3311            mExtras = new Bundle();
3312        }
3313        mExtras.putCharSequence(name, value);
3314        return this;
3315    }
3316
3317    /**
3318     * Add extended data to the intent.  The name must include a package
3319     * prefix, for example the app com.android.contacts would use names
3320     * like "com.android.contacts.ShowAll".
3321     *
3322     * @param name The name of the extra data, with package prefix.
3323     * @param value The Parcelable data value.
3324     *
3325     * @return Returns the same Intent object, for chaining multiple calls
3326     * into a single statement.
3327     *
3328     * @see #putExtras
3329     * @see #removeExtra
3330     * @see #getParcelableExtra(String)
3331     */
3332    public Intent putExtra(String name, Parcelable value) {
3333        if (mExtras == null) {
3334            mExtras = new Bundle();
3335        }
3336        mExtras.putParcelable(name, value);
3337        return this;
3338    }
3339
3340    /**
3341     * Add extended data to the intent.  The name must include a package
3342     * prefix, for example the app com.android.contacts would use names
3343     * like "com.android.contacts.ShowAll".
3344     *
3345     * @param name The name of the extra data, with package prefix.
3346     * @param value The Parcelable[] data value.
3347     *
3348     * @return Returns the same Intent object, for chaining multiple calls
3349     * into a single statement.
3350     *
3351     * @see #putExtras
3352     * @see #removeExtra
3353     * @see #getParcelableArrayExtra(String)
3354     */
3355    public Intent putExtra(String name, Parcelable[] value) {
3356        if (mExtras == null) {
3357            mExtras = new Bundle();
3358        }
3359        mExtras.putParcelableArray(name, value);
3360        return this;
3361    }
3362
3363    /**
3364     * Add extended data to the intent.  The name must include a package
3365     * prefix, for example the app com.android.contacts would use names
3366     * like "com.android.contacts.ShowAll".
3367     *
3368     * @param name The name of the extra data, with package prefix.
3369     * @param value The ArrayList<Parcelable> data value.
3370     *
3371     * @return Returns the same Intent object, for chaining multiple calls
3372     * into a single statement.
3373     *
3374     * @see #putExtras
3375     * @see #removeExtra
3376     * @see #getParcelableArrayListExtra(String)
3377     */
3378    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
3379        if (mExtras == null) {
3380            mExtras = new Bundle();
3381        }
3382        mExtras.putParcelableArrayList(name, value);
3383        return this;
3384    }
3385
3386    /**
3387     * Add extended data to the intent.  The name must include a package
3388     * prefix, for example the app com.android.contacts would use names
3389     * like "com.android.contacts.ShowAll".
3390     *
3391     * @param name The name of the extra data, with package prefix.
3392     * @param value The ArrayList<Integer> data value.
3393     *
3394     * @return Returns the same Intent object, for chaining multiple calls
3395     * into a single statement.
3396     *
3397     * @see #putExtras
3398     * @see #removeExtra
3399     * @see #getIntegerArrayListExtra(String)
3400     */
3401    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
3402        if (mExtras == null) {
3403            mExtras = new Bundle();
3404        }
3405        mExtras.putIntegerArrayList(name, value);
3406        return this;
3407    }
3408
3409    /**
3410     * Add extended data to the intent.  The name must include a package
3411     * prefix, for example the app com.android.contacts would use names
3412     * like "com.android.contacts.ShowAll".
3413     *
3414     * @param name The name of the extra data, with package prefix.
3415     * @param value The ArrayList<String> data value.
3416     *
3417     * @return Returns the same Intent object, for chaining multiple calls
3418     * into a single statement.
3419     *
3420     * @see #putExtras
3421     * @see #removeExtra
3422     * @see #getStringArrayListExtra(String)
3423     */
3424    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
3425        if (mExtras == null) {
3426            mExtras = new Bundle();
3427        }
3428        mExtras.putStringArrayList(name, value);
3429        return this;
3430    }
3431
3432    /**
3433     * Add extended data to the intent.  The name must include a package
3434     * prefix, for example the app com.android.contacts would use names
3435     * like "com.android.contacts.ShowAll".
3436     *
3437     * @param name The name of the extra data, with package prefix.
3438     * @param value The Serializable data value.
3439     *
3440     * @return Returns the same Intent object, for chaining multiple calls
3441     * into a single statement.
3442     *
3443     * @see #putExtras
3444     * @see #removeExtra
3445     * @see #getSerializableExtra(String)
3446     */
3447    public Intent putExtra(String name, Serializable value) {
3448        if (mExtras == null) {
3449            mExtras = new Bundle();
3450        }
3451        mExtras.putSerializable(name, value);
3452        return this;
3453    }
3454
3455    /**
3456     * Add extended data to the intent.  The name must include a package
3457     * prefix, for example the app com.android.contacts would use names
3458     * like "com.android.contacts.ShowAll".
3459     *
3460     * @param name The name of the extra data, with package prefix.
3461     * @param value The boolean array data value.
3462     *
3463     * @return Returns the same Intent object, for chaining multiple calls
3464     * into a single statement.
3465     *
3466     * @see #putExtras
3467     * @see #removeExtra
3468     * @see #getBooleanArrayExtra(String)
3469     */
3470    public Intent putExtra(String name, boolean[] value) {
3471        if (mExtras == null) {
3472            mExtras = new Bundle();
3473        }
3474        mExtras.putBooleanArray(name, value);
3475        return this;
3476    }
3477
3478    /**
3479     * Add extended data to the intent.  The name must include a package
3480     * prefix, for example the app com.android.contacts would use names
3481     * like "com.android.contacts.ShowAll".
3482     *
3483     * @param name The name of the extra data, with package prefix.
3484     * @param value The byte array data value.
3485     *
3486     * @return Returns the same Intent object, for chaining multiple calls
3487     * into a single statement.
3488     *
3489     * @see #putExtras
3490     * @see #removeExtra
3491     * @see #getByteArrayExtra(String)
3492     */
3493    public Intent putExtra(String name, byte[] value) {
3494        if (mExtras == null) {
3495            mExtras = new Bundle();
3496        }
3497        mExtras.putByteArray(name, value);
3498        return this;
3499    }
3500
3501    /**
3502     * Add extended data to the intent.  The name must include a package
3503     * prefix, for example the app com.android.contacts would use names
3504     * like "com.android.contacts.ShowAll".
3505     *
3506     * @param name The name of the extra data, with package prefix.
3507     * @param value The short array data value.
3508     *
3509     * @return Returns the same Intent object, for chaining multiple calls
3510     * into a single statement.
3511     *
3512     * @see #putExtras
3513     * @see #removeExtra
3514     * @see #getShortArrayExtra(String)
3515     */
3516    public Intent putExtra(String name, short[] value) {
3517        if (mExtras == null) {
3518            mExtras = new Bundle();
3519        }
3520        mExtras.putShortArray(name, value);
3521        return this;
3522    }
3523
3524    /**
3525     * Add extended data to the intent.  The name must include a package
3526     * prefix, for example the app com.android.contacts would use names
3527     * like "com.android.contacts.ShowAll".
3528     *
3529     * @param name The name of the extra data, with package prefix.
3530     * @param value The char array data value.
3531     *
3532     * @return Returns the same Intent object, for chaining multiple calls
3533     * into a single statement.
3534     *
3535     * @see #putExtras
3536     * @see #removeExtra
3537     * @see #getCharArrayExtra(String)
3538     */
3539    public Intent putExtra(String name, char[] value) {
3540        if (mExtras == null) {
3541            mExtras = new Bundle();
3542        }
3543        mExtras.putCharArray(name, value);
3544        return this;
3545    }
3546
3547    /**
3548     * Add extended data to the intent.  The name must include a package
3549     * prefix, for example the app com.android.contacts would use names
3550     * like "com.android.contacts.ShowAll".
3551     *
3552     * @param name The name of the extra data, with package prefix.
3553     * @param value The int array data value.
3554     *
3555     * @return Returns the same Intent object, for chaining multiple calls
3556     * into a single statement.
3557     *
3558     * @see #putExtras
3559     * @see #removeExtra
3560     * @see #getIntArrayExtra(String)
3561     */
3562    public Intent putExtra(String name, int[] value) {
3563        if (mExtras == null) {
3564            mExtras = new Bundle();
3565        }
3566        mExtras.putIntArray(name, value);
3567        return this;
3568    }
3569
3570    /**
3571     * Add extended data to the intent.  The name must include a package
3572     * prefix, for example the app com.android.contacts would use names
3573     * like "com.android.contacts.ShowAll".
3574     *
3575     * @param name The name of the extra data, with package prefix.
3576     * @param value The byte array data value.
3577     *
3578     * @return Returns the same Intent object, for chaining multiple calls
3579     * into a single statement.
3580     *
3581     * @see #putExtras
3582     * @see #removeExtra
3583     * @see #getLongArrayExtra(String)
3584     */
3585    public Intent putExtra(String name, long[] value) {
3586        if (mExtras == null) {
3587            mExtras = new Bundle();
3588        }
3589        mExtras.putLongArray(name, value);
3590        return this;
3591    }
3592
3593    /**
3594     * Add extended data to the intent.  The name must include a package
3595     * prefix, for example the app com.android.contacts would use names
3596     * like "com.android.contacts.ShowAll".
3597     *
3598     * @param name The name of the extra data, with package prefix.
3599     * @param value The float array data value.
3600     *
3601     * @return Returns the same Intent object, for chaining multiple calls
3602     * into a single statement.
3603     *
3604     * @see #putExtras
3605     * @see #removeExtra
3606     * @see #getFloatArrayExtra(String)
3607     */
3608    public Intent putExtra(String name, float[] value) {
3609        if (mExtras == null) {
3610            mExtras = new Bundle();
3611        }
3612        mExtras.putFloatArray(name, value);
3613        return this;
3614    }
3615
3616    /**
3617     * Add extended data to the intent.  The name must include a package
3618     * prefix, for example the app com.android.contacts would use names
3619     * like "com.android.contacts.ShowAll".
3620     *
3621     * @param name The name of the extra data, with package prefix.
3622     * @param value The double array data value.
3623     *
3624     * @return Returns the same Intent object, for chaining multiple calls
3625     * into a single statement.
3626     *
3627     * @see #putExtras
3628     * @see #removeExtra
3629     * @see #getDoubleArrayExtra(String)
3630     */
3631    public Intent putExtra(String name, double[] value) {
3632        if (mExtras == null) {
3633            mExtras = new Bundle();
3634        }
3635        mExtras.putDoubleArray(name, value);
3636        return this;
3637    }
3638
3639    /**
3640     * Add extended data to the intent.  The name must include a package
3641     * prefix, for example the app com.android.contacts would use names
3642     * like "com.android.contacts.ShowAll".
3643     *
3644     * @param name The name of the extra data, with package prefix.
3645     * @param value The String array data value.
3646     *
3647     * @return Returns the same Intent object, for chaining multiple calls
3648     * into a single statement.
3649     *
3650     * @see #putExtras
3651     * @see #removeExtra
3652     * @see #getStringArrayExtra(String)
3653     */
3654    public Intent putExtra(String name, String[] value) {
3655        if (mExtras == null) {
3656            mExtras = new Bundle();
3657        }
3658        mExtras.putStringArray(name, value);
3659        return this;
3660    }
3661
3662    /**
3663     * Add extended data to the intent.  The name must include a package
3664     * prefix, for example the app com.android.contacts would use names
3665     * like "com.android.contacts.ShowAll".
3666     *
3667     * @param name The name of the extra data, with package prefix.
3668     * @param value The Bundle data value.
3669     *
3670     * @return Returns the same Intent object, for chaining multiple calls
3671     * into a single statement.
3672     *
3673     * @see #putExtras
3674     * @see #removeExtra
3675     * @see #getBundleExtra(String)
3676     */
3677    public Intent putExtra(String name, Bundle value) {
3678        if (mExtras == null) {
3679            mExtras = new Bundle();
3680        }
3681        mExtras.putBundle(name, value);
3682        return this;
3683    }
3684
3685    /**
3686     * Add extended data to the intent.  The name must include a package
3687     * prefix, for example the app com.android.contacts would use names
3688     * like "com.android.contacts.ShowAll".
3689     *
3690     * @param name The name of the extra data, with package prefix.
3691     * @param value The IBinder data value.
3692     *
3693     * @return Returns the same Intent object, for chaining multiple calls
3694     * into a single statement.
3695     *
3696     * @see #putExtras
3697     * @see #removeExtra
3698     * @see #getIBinderExtra(String)
3699     *
3700     * @deprecated
3701     * @hide
3702     */
3703    @Deprecated
3704    public Intent putExtra(String name, IBinder value) {
3705        if (mExtras == null) {
3706            mExtras = new Bundle();
3707        }
3708        mExtras.putIBinder(name, value);
3709        return this;
3710    }
3711
3712    /**
3713     * Copy all extras in 'src' in to this intent.
3714     *
3715     * @param src Contains the extras to copy.
3716     *
3717     * @see #putExtra
3718     */
3719    public Intent putExtras(Intent src) {
3720        if (src.mExtras != null) {
3721            if (mExtras == null) {
3722                mExtras = new Bundle(src.mExtras);
3723            } else {
3724                mExtras.putAll(src.mExtras);
3725            }
3726        }
3727        return this;
3728    }
3729
3730    /**
3731     * Add a set of extended data to the intent.  The keys must include a package
3732     * prefix, for example the app com.android.contacts would use names
3733     * like "com.android.contacts.ShowAll".
3734     *
3735     * @param extras The Bundle of extras to add to this intent.
3736     *
3737     * @see #putExtra
3738     * @see #removeExtra
3739     */
3740    public Intent putExtras(Bundle extras) {
3741        if (mExtras == null) {
3742            mExtras = new Bundle();
3743        }
3744        mExtras.putAll(extras);
3745        return this;
3746    }
3747
3748    /**
3749     * Remove extended data from the intent.
3750     *
3751     * @see #putExtra
3752     */
3753    public void removeExtra(String name) {
3754        if (mExtras != null) {
3755            mExtras.remove(name);
3756            if (mExtras.size() == 0) {
3757                mExtras = null;
3758            }
3759        }
3760    }
3761
3762    /**
3763     * Set special flags controlling how this intent is handled.  Most values
3764     * here depend on the type of component being executed by the Intent,
3765     * specifically the FLAG_ACTIVITY_* flags are all for use with
3766     * {@link Context#startActivity Context.startActivity()} and the
3767     * FLAG_RECEIVER_* flags are all for use with
3768     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
3769     *
3770     * <p>See the <a href="{@docRoot}intro/appmodel.html">Application Model</a>
3771     * documentation for important information on how some of these options impact
3772     * the behavior of your application.
3773     *
3774     * @param flags The desired flags.
3775     *
3776     * @return Returns the same Intent object, for chaining multiple calls
3777     * into a single statement.
3778     *
3779     * @see #getFlags
3780     * @see #addFlags
3781     *
3782     * @see #FLAG_GRANT_READ_URI_PERMISSION
3783     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
3784     * @see #FLAG_DEBUG_LOG_RESOLUTION
3785     * @see #FLAG_FROM_BACKGROUND
3786     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
3787     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
3788     * @see #FLAG_ACTIVITY_CLEAR_TOP
3789     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
3790     * @see #FLAG_ACTIVITY_FORWARD_RESULT
3791     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
3792     * @see #FLAG_ACTIVITY_NEW_TASK
3793     * @see #FLAG_ACTIVITY_NO_HISTORY
3794     * @see #FLAG_ACTIVITY_SINGLE_TOP
3795     * @see #FLAG_RECEIVER_REGISTERED_ONLY
3796     */
3797    public Intent setFlags(int flags) {
3798        mFlags = flags;
3799        return this;
3800    }
3801
3802    /**
3803     * Add additional flags to the intent (or with existing flags
3804     * value).
3805     *
3806     * @param flags The new flags to set.
3807     *
3808     * @return Returns the same Intent object, for chaining multiple calls
3809     * into a single statement.
3810     *
3811     * @see #setFlags
3812     */
3813    public Intent addFlags(int flags) {
3814        mFlags |= flags;
3815        return this;
3816    }
3817
3818    /**
3819     * (Usually optional) Explicitly set the component to handle the intent.
3820     * If left with the default value of null, the system will determine the
3821     * appropriate class to use based on the other fields (action, data,
3822     * type, categories) in the Intent.  If this class is defined, the
3823     * specified class will always be used regardless of the other fields.  You
3824     * should only set this value when you know you absolutely want a specific
3825     * class to be used; otherwise it is better to let the system find the
3826     * appropriate class so that you will respect the installed applications
3827     * and user preferences.
3828     *
3829     * @param component The name of the application component to handle the
3830     * intent, or null to let the system find one for you.
3831     *
3832     * @return Returns the same Intent object, for chaining multiple calls
3833     * into a single statement.
3834     *
3835     * @see #setClass
3836     * @see #setClassName(Context, String)
3837     * @see #setClassName(String, String)
3838     * @see #getComponent
3839     * @see #resolveActivity
3840     */
3841    public Intent setComponent(ComponentName component) {
3842        mComponent = component;
3843        return this;
3844    }
3845
3846    /**
3847     * Convenience for calling {@link #setComponent} with an
3848     * explicit class name.
3849     *
3850     * @param packageContext A Context of the application package implementing
3851     * this class.
3852     * @param className The name of a class inside of the application package
3853     * that will be used as the component for this Intent.
3854     *
3855     * @return Returns the same Intent object, for chaining multiple calls
3856     * into a single statement.
3857     *
3858     * @see #setComponent
3859     * @see #setClass
3860     */
3861    public Intent setClassName(Context packageContext, String className) {
3862        mComponent = new ComponentName(packageContext, className);
3863        return this;
3864    }
3865
3866    /**
3867     * Convenience for calling {@link #setComponent} with an
3868     * explicit application package name and class name.
3869     *
3870     * @param packageName The name of the package implementing the desired
3871     * component.
3872     * @param className The name of a class inside of the application package
3873     * that will be used as the component for this Intent.
3874     *
3875     * @return Returns the same Intent object, for chaining multiple calls
3876     * into a single statement.
3877     *
3878     * @see #setComponent
3879     * @see #setClass
3880     */
3881    public Intent setClassName(String packageName, String className) {
3882        mComponent = new ComponentName(packageName, className);
3883        return this;
3884    }
3885
3886    /**
3887     * Convenience for calling {@link #setComponent(ComponentName)} with the
3888     * name returned by a {@link Class} object.
3889     *
3890     * @param packageContext A Context of the application package implementing
3891     * this class.
3892     * @param cls The class name to set, equivalent to
3893     *            <code>setClassName(context, cls.getName())</code>.
3894     *
3895     * @return Returns the same Intent object, for chaining multiple calls
3896     * into a single statement.
3897     *
3898     * @see #setComponent
3899     */
3900    public Intent setClass(Context packageContext, Class<?> cls) {
3901        mComponent = new ComponentName(packageContext, cls);
3902        return this;
3903    }
3904
3905    /**
3906     * Use with {@link #fillIn} to allow the current action value to be
3907     * overwritten, even if it is already set.
3908     */
3909    public static final int FILL_IN_ACTION = 1<<0;
3910
3911    /**
3912     * Use with {@link #fillIn} to allow the current data or type value
3913     * overwritten, even if it is already set.
3914     */
3915    public static final int FILL_IN_DATA = 1<<1;
3916
3917    /**
3918     * Use with {@link #fillIn} to allow the current categories to be
3919     * overwritten, even if they are already set.
3920     */
3921    public static final int FILL_IN_CATEGORIES = 1<<2;
3922
3923    /**
3924     * Use with {@link #fillIn} to allow the current component value to be
3925     * overwritten, even if it is already set.
3926     */
3927    public static final int FILL_IN_COMPONENT = 1<<3;
3928
3929    /**
3930     * Copy the contents of <var>other</var> in to this object, but only
3931     * where fields are not defined by this object.  For purposes of a field
3932     * being defined, the following pieces of data in the Intent are
3933     * considered to be separate fields:
3934     *
3935     * <ul>
3936     * <li> action, as set by {@link #setAction}.
3937     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
3938     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
3939     * <li> categories, as set by {@link #addCategory}.
3940     * <li> component, as set by {@link #setComponent(ComponentName)} or
3941     * related methods.
3942     * <li> each top-level name in the associated extras.
3943     * </ul>
3944     *
3945     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
3946     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, and
3947     * {@link #FILL_IN_COMPONENT} to override the restriction where the
3948     * corresponding field will not be replaced if it is already set.
3949     *
3950     * <p>For example, consider Intent A with {data="foo", categories="bar"}
3951     * and Intent B with {action="gotit", data-type="some/thing",
3952     * categories="one","two"}.
3953     *
3954     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
3955     * containing: {action="gotit", data-type="some/thing",
3956     * categories="bar"}.
3957     *
3958     * @param other Another Intent whose values are to be used to fill in
3959     * the current one.
3960     * @param flags Options to control which fields can be filled in.
3961     *
3962     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
3963     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, and
3964     * {@link #FILL_IN_COMPONENT} indicating which fields were changed.
3965     */
3966    public int fillIn(Intent other, int flags) {
3967        int changes = 0;
3968        if ((mAction == null && other.mAction == null)
3969                || (flags&FILL_IN_ACTION) != 0) {
3970            mAction = other.mAction;
3971            changes |= FILL_IN_ACTION;
3972        }
3973        if ((mData == null && mType == null &&
3974                (other.mData != null || other.mType != null))
3975                || (flags&FILL_IN_DATA) != 0) {
3976            mData = other.mData;
3977            mType = other.mType;
3978            changes |= FILL_IN_DATA;
3979        }
3980        if ((mCategories == null && other.mCategories == null)
3981                || (flags&FILL_IN_CATEGORIES) != 0) {
3982            if (other.mCategories != null) {
3983                mCategories = new HashSet<String>(other.mCategories);
3984            }
3985            changes |= FILL_IN_CATEGORIES;
3986        }
3987        if ((mComponent == null && other.mComponent == null)
3988                || (flags&FILL_IN_COMPONENT) != 0) {
3989            mComponent = other.mComponent;
3990            changes |= FILL_IN_COMPONENT;
3991        }
3992        mFlags |= other.mFlags;
3993        if (mExtras == null) {
3994            if (other.mExtras != null) {
3995                mExtras = new Bundle(other.mExtras);
3996            }
3997        } else if (other.mExtras != null) {
3998            try {
3999                Bundle newb = new Bundle(other.mExtras);
4000                newb.putAll(mExtras);
4001                mExtras = newb;
4002            } catch (RuntimeException e) {
4003                // Modifying the extras can cause us to unparcel the contents
4004                // of the bundle, and if we do this in the system process that
4005                // may fail.  We really should handle this (i.e., the Bundle
4006                // impl shouldn't be on top of a plain map), but for now just
4007                // ignore it and keep the original contents. :(
4008                Log.w("Intent", "Failure filling in extras", e);
4009            }
4010        }
4011        return changes;
4012    }
4013
4014    /**
4015     * Wrapper class holding an Intent and implementing comparisons on it for
4016     * the purpose of filtering.  The class implements its
4017     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4018     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4019     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4020     * on the wrapped Intent.
4021     */
4022    public static final class FilterComparison {
4023        private final Intent mIntent;
4024        private final int mHashCode;
4025
4026        public FilterComparison(Intent intent) {
4027            mIntent = intent;
4028            mHashCode = intent.filterHashCode();
4029        }
4030
4031        /**
4032         * Return the Intent that this FilterComparison represents.
4033         * @return Returns the Intent held by the FilterComparison.  Do
4034         * not modify!
4035         */
4036        public Intent getIntent() {
4037            return mIntent;
4038        }
4039
4040        @Override
4041        public boolean equals(Object obj) {
4042            Intent other;
4043            try {
4044                other = ((FilterComparison)obj).mIntent;
4045            } catch (ClassCastException e) {
4046                return false;
4047            }
4048
4049            return mIntent.filterEquals(other);
4050        }
4051
4052        @Override
4053        public int hashCode() {
4054            return mHashCode;
4055        }
4056    }
4057
4058    /**
4059     * Determine if two intents are the same for the purposes of intent
4060     * resolution (filtering). That is, if their action, data, type,
4061     * class, and categories are the same.  This does <em>not</em> compare
4062     * any extra data included in the intents.
4063     *
4064     * @param other The other Intent to compare against.
4065     *
4066     * @return Returns true if action, data, type, class, and categories
4067     *         are the same.
4068     */
4069    public boolean filterEquals(Intent other) {
4070        if (other == null) {
4071            return false;
4072        }
4073        if (mAction != other.mAction) {
4074            if (mAction != null) {
4075                if (!mAction.equals(other.mAction)) {
4076                    return false;
4077                }
4078            } else {
4079                if (!other.mAction.equals(mAction)) {
4080                    return false;
4081                }
4082            }
4083        }
4084        if (mData != other.mData) {
4085            if (mData != null) {
4086                if (!mData.equals(other.mData)) {
4087                    return false;
4088                }
4089            } else {
4090                if (!other.mData.equals(mData)) {
4091                    return false;
4092                }
4093            }
4094        }
4095        if (mType != other.mType) {
4096            if (mType != null) {
4097                if (!mType.equals(other.mType)) {
4098                    return false;
4099                }
4100            } else {
4101                if (!other.mType.equals(mType)) {
4102                    return false;
4103                }
4104            }
4105        }
4106        if (mComponent != other.mComponent) {
4107            if (mComponent != null) {
4108                if (!mComponent.equals(other.mComponent)) {
4109                    return false;
4110                }
4111            } else {
4112                if (!other.mComponent.equals(mComponent)) {
4113                    return false;
4114                }
4115            }
4116        }
4117        if (mCategories != other.mCategories) {
4118            if (mCategories != null) {
4119                if (!mCategories.equals(other.mCategories)) {
4120                    return false;
4121                }
4122            } else {
4123                if (!other.mCategories.equals(mCategories)) {
4124                    return false;
4125                }
4126            }
4127        }
4128
4129        return true;
4130    }
4131
4132    /**
4133     * Generate hash code that matches semantics of filterEquals().
4134     *
4135     * @return Returns the hash value of the action, data, type, class, and
4136     *         categories.
4137     *
4138     * @see #filterEquals
4139     */
4140    public int filterHashCode() {
4141        int code = 0;
4142        if (mAction != null) {
4143            code += mAction.hashCode();
4144        }
4145        if (mData != null) {
4146            code += mData.hashCode();
4147        }
4148        if (mType != null) {
4149            code += mType.hashCode();
4150        }
4151        if (mComponent != null) {
4152            code += mComponent.hashCode();
4153        }
4154        if (mCategories != null) {
4155            code += mCategories.hashCode();
4156        }
4157        return code;
4158    }
4159
4160    @Override
4161    public String toString() {
4162        StringBuilder   b = new StringBuilder();
4163
4164        b.append("Intent {");
4165        if (mAction != null) b.append(" action=").append(mAction);
4166        if (mCategories != null) {
4167            b.append(" categories={");
4168            Iterator<String> i = mCategories.iterator();
4169            boolean didone = false;
4170            while (i.hasNext()) {
4171                if (didone) b.append(",");
4172                didone = true;
4173                b.append(i.next());
4174            }
4175            b.append("}");
4176        }
4177        if (mData != null) b.append(" data=").append(mData);
4178        if (mType != null) b.append(" type=").append(mType);
4179        if (mFlags != 0) b.append(" flags=0x").append(Integer.toHexString(mFlags));
4180        if (mComponent != null) b.append(" comp=").append(mComponent.toShortString());
4181        if (mExtras != null) b.append(" (has extras)");
4182        b.append(" }");
4183
4184        return b.toString();
4185    }
4186
4187    public String toURI() {
4188        StringBuilder uri = new StringBuilder(mData != null ? mData.toString() : "");
4189
4190        uri.append("#Intent;");
4191
4192        if (mAction != null) {
4193            uri.append("action=").append(mAction).append(';');
4194        }
4195        if (mCategories != null) {
4196            for (String category : mCategories) {
4197                uri.append("category=").append(category).append(';');
4198            }
4199        }
4200        if (mType != null) {
4201            uri.append("type=").append(mType).append(';');
4202        }
4203        if (mFlags != 0) {
4204            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
4205        }
4206        if (mComponent != null) {
4207            uri.append("component=").append(mComponent.flattenToShortString()).append(';');
4208        }
4209        if (mExtras != null) {
4210            for (String key : mExtras.keySet()) {
4211                final Object value = mExtras.get(key);
4212                char entryType =
4213                        value instanceof String    ? 'S' :
4214                        value instanceof Boolean   ? 'B' :
4215                        value instanceof Byte      ? 'b' :
4216                        value instanceof Character ? 'c' :
4217                        value instanceof Double    ? 'd' :
4218                        value instanceof Float     ? 'f' :
4219                        value instanceof Integer   ? 'i' :
4220                        value instanceof Long      ? 'l' :
4221                        value instanceof Short     ? 's' :
4222                        '\0';
4223
4224                if (entryType != '\0') {
4225                    uri.append(entryType);
4226                    uri.append('.');
4227                    uri.append(Uri.encode(key));
4228                    uri.append('=');
4229                    uri.append(Uri.encode(value.toString()));
4230                    uri.append(';');
4231                }
4232            }
4233        }
4234
4235        uri.append("end");
4236
4237        return uri.toString();
4238    }
4239
4240    public int describeContents() {
4241        return (mExtras != null) ? mExtras.describeContents() : 0;
4242    }
4243
4244    public void writeToParcel(Parcel out, int flags) {
4245        out.writeString(mAction);
4246        Uri.writeToParcel(out, mData);
4247        out.writeString(mType);
4248        out.writeInt(mFlags);
4249        ComponentName.writeToParcel(mComponent, out);
4250
4251        if (mCategories != null) {
4252            out.writeInt(mCategories.size());
4253            for (String category : mCategories) {
4254                out.writeString(category);
4255            }
4256        } else {
4257            out.writeInt(0);
4258        }
4259
4260        out.writeBundle(mExtras);
4261    }
4262
4263    public static final Parcelable.Creator<Intent> CREATOR
4264            = new Parcelable.Creator<Intent>() {
4265        public Intent createFromParcel(Parcel in) {
4266            return new Intent(in);
4267        }
4268        public Intent[] newArray(int size) {
4269            return new Intent[size];
4270        }
4271    };
4272
4273    private Intent(Parcel in) {
4274        readFromParcel(in);
4275    }
4276
4277    public void readFromParcel(Parcel in) {
4278        mAction = in.readString();
4279        mData = Uri.CREATOR.createFromParcel(in);
4280        mType = in.readString();
4281        mFlags = in.readInt();
4282        mComponent = ComponentName.readFromParcel(in);
4283
4284        int N = in.readInt();
4285        if (N > 0) {
4286            mCategories = new HashSet<String>();
4287            int i;
4288            for (i=0; i<N; i++) {
4289                mCategories.add(in.readString());
4290            }
4291        } else {
4292            mCategories = null;
4293        }
4294
4295        mExtras = in.readBundle();
4296    }
4297
4298    /**
4299     * Parses the "intent" element (and its children) from XML and instantiates
4300     * an Intent object.  The given XML parser should be located at the tag
4301     * where parsing should start (often named "intent"), from which the
4302     * basic action, data, type, and package and class name will be
4303     * retrieved.  The function will then parse in to any child elements,
4304     * looking for <category android:name="xxx"> tags to add categories and
4305     * <extra android:name="xxx" android:value="yyy"> to attach extra data
4306     * to the intent.
4307     *
4308     * @param resources The Resources to use when inflating resources.
4309     * @param parser The XML parser pointing at an "intent" tag.
4310     * @param attrs The AttributeSet interface for retrieving extended
4311     * attribute data at the current <var>parser</var> location.
4312     * @return An Intent object matching the XML data.
4313     * @throws XmlPullParserException If there was an XML parsing error.
4314     * @throws IOException If there was an I/O error.
4315     */
4316    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
4317            throws XmlPullParserException, IOException {
4318        Intent intent = new Intent();
4319
4320        TypedArray sa = resources.obtainAttributes(attrs,
4321                com.android.internal.R.styleable.Intent);
4322
4323        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
4324
4325        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
4326        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
4327        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
4328
4329        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
4330        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
4331        if (packageName != null && className != null) {
4332            intent.setComponent(new ComponentName(packageName, className));
4333        }
4334
4335        sa.recycle();
4336
4337        int outerDepth = parser.getDepth();
4338        int type;
4339        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
4340               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
4341            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
4342                continue;
4343            }
4344
4345            String nodeName = parser.getName();
4346            if (nodeName.equals("category")) {
4347                sa = resources.obtainAttributes(attrs,
4348                        com.android.internal.R.styleable.IntentCategory);
4349                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
4350                sa.recycle();
4351
4352                if (cat != null) {
4353                    intent.addCategory(cat);
4354                }
4355                XmlUtils.skipCurrentTag(parser);
4356
4357            } else if (nodeName.equals("extra")) {
4358                parseExtra(resources, intent, parser, attrs);
4359
4360            } else {
4361                XmlUtils.skipCurrentTag(parser);
4362            }
4363        }
4364
4365        return intent;
4366    }
4367
4368    private static void parseExtra(Resources resources, Intent intent, XmlPullParser parser,
4369            AttributeSet attrs) throws XmlPullParserException, IOException {
4370        TypedArray sa = resources.obtainAttributes(attrs,
4371                com.android.internal.R.styleable.IntentExtra);
4372
4373        String name = sa.getString(
4374                com.android.internal.R.styleable.IntentExtra_name);
4375        if (name == null) {
4376            sa.recycle();
4377            throw new RuntimeException(
4378                    "<extra> requires an android:name attribute at "
4379                    + parser.getPositionDescription());
4380        }
4381
4382        TypedValue v = sa.peekValue(
4383                com.android.internal.R.styleable.IntentExtra_value);
4384        if (v != null) {
4385            if (v.type == TypedValue.TYPE_STRING) {
4386                CharSequence cs = v.coerceToString();
4387                intent.putExtra(name, cs != null ? cs.toString() : null);
4388            } else if (v.type == TypedValue.TYPE_INT_BOOLEAN) {
4389                intent.putExtra(name, v.data != 0);
4390            } else if (v.type >= TypedValue.TYPE_FIRST_INT
4391                    && v.type <= TypedValue.TYPE_LAST_INT) {
4392                intent.putExtra(name, v.data);
4393            } else if (v.type == TypedValue.TYPE_FLOAT) {
4394                intent.putExtra(name, v.getFloat());
4395            } else {
4396                sa.recycle();
4397                throw new RuntimeException(
4398                        "<extra> only supports string, integer, float, color, and boolean at "
4399                        + parser.getPositionDescription());
4400            }
4401        } else {
4402            sa.recycle();
4403            throw new RuntimeException(
4404                    "<extra> requires an android:value or android:resource attribute at "
4405                    + parser.getPositionDescription());
4406        }
4407
4408        sa.recycle();
4409
4410        XmlUtils.skipCurrentTag(parser);
4411    }
4412}
4413