Intent.java revision aa52f9a7c63d4fdeba0fa16fe0aba3b47fef3738
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.content;
18
19import org.xmlpull.v1.XmlPullParser;
20import org.xmlpull.v1.XmlPullParserException;
21
22import android.annotation.SdkConstant;
23import android.annotation.SdkConstant.SdkConstantType;
24import android.content.pm.ActivityInfo;
25import android.content.pm.PackageManager;
26import android.content.pm.ResolveInfo;
27import android.content.res.Resources;
28import android.content.res.TypedArray;
29import android.net.Uri;
30import android.os.Bundle;
31import android.os.IBinder;
32import android.os.Parcel;
33import android.os.Parcelable;
34import android.util.AttributeSet;
35import android.util.Log;
36import com.android.internal.util.XmlUtils;
37
38import java.io.IOException;
39import java.io.Serializable;
40import java.net.URISyntaxException;
41import java.util.ArrayList;
42import java.util.HashSet;
43import java.util.Iterator;
44import java.util.Set;
45
46/**
47 * An intent is an abstract description of an operation to be performed.  It
48 * can be used with {@link Context#startActivity(Intent) startActivity} to
49 * launch an {@link android.app.Activity},
50 * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
51 * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
52 * and {@link android.content.Context#startService} or
53 * {@link android.content.Context#bindService} to communicate with a
54 * background {@link android.app.Service}.
55 *
56 * <p>An Intent provides a facility for performing late runtime binding between
57 * the code in different applications.  Its most significant use is in the
58 * launching of activities, where it can be thought of as the glue between
59 * activities. It is
60 * basically a passive data structure holding an abstract description of an
61 * action to be performed. The primary pieces of information in an intent
62 * are:</p>
63 *
64 * <ul>
65 *   <li> <p><b>action</b> -- The general action to be performed, such as
66 *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
67 *     etc.</p>
68 *   </li>
69 *   <li> <p><b>data</b> -- The data to operate on, such as a person record
70 *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
71 *   </li>
72 * </ul>
73 *
74 *
75 * <p>Some examples of action/data pairs are:</p>
76 *
77 * <ul>
78 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
79 *     information about the person whose identifier is "1".</p>
80 *   </li>
81 *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
82 *     the phone dialer with the person filled in.</p>
83 *   </li>
84 *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
85 *     the phone dialer with the given number filled in.  Note how the
86 *     VIEW action does what what is considered the most reasonable thing for
87 *     a particular URI.</p>
88 *   </li>
89 *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
90 *     the phone dialer with the given number filled in.</p>
91 *   </li>
92 *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
93 *     information about the person whose identifier is "1".</p>
94 *   </li>
95 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
96 *     a list of people, which the user can browse through.  This example is a
97 *     typical top-level entry into the Contacts application, showing you the
98 *     list of people. Selecting a particular person to view would result in a
99 *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
100 *     being used to start an activity to display that person.</p>
101 *   </li>
102 * </ul>
103 *
104 * <p>In addition to these primary attributes, there are a number of secondary
105 * attributes that you can also include with an intent:</p>
106 *
107 * <ul>
108 *     <li> <p><b>category</b> -- Gives additional information about the action
109 *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
110 *         appear in the Launcher as a top-level application, while
111 *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
112 *         of alternative actions the user can perform on a piece of data.</p>
113 *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
114 *         intent data.  Normally the type is inferred from the data itself.
115 *         By setting this attribute, you disable that evaluation and force
116 *         an explicit type.</p>
117 *     <li> <p><b>component</b> -- Specifies an explicit name of a component
118 *         class to use for the intent.  Normally this is determined by looking
119 *         at the other information in the intent (the action, data/type, and
120 *         categories) and matching that with a component that can handle it.
121 *         If this attribute is set then none of the evaluation is performed,
122 *         and this component is used exactly as is.  By specifying this attribute,
123 *         all of the other Intent attributes become optional.</p>
124 *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
125 *         This can be used to provide extended information to the component.
126 *         For example, if we have a action to send an e-mail message, we could
127 *         also include extra pieces of data here to supply a subject, body,
128 *         etc.</p>
129 * </ul>
130 *
131 * <p>Here are some examples of other operations you can specify as intents
132 * using these additional parameters:</p>
133 *
134 * <ul>
135 *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
136 *     Launch the home screen.</p>
137 *   </li>
138 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
139 *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
140 *     vnd.android.cursor.item/phone}</i></b>
141 *     -- Display the list of people's phone numbers, allowing the user to
142 *     browse through them and pick one and return it to the parent activity.</p>
143 *   </li>
144 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
145 *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
146 *     -- Display all pickers for data that can be opened with
147 *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
148 *     allowing the user to pick one of them and then some data inside of it
149 *     and returning the resulting URI to the caller.  This can be used,
150 *     for example, in an e-mail application to allow the user to pick some
151 *     data to include as an attachment.</p>
152 *   </li>
153 * </ul>
154 *
155 * <p>There are a variety of standard Intent action and category constants
156 * defined in the Intent class, but applications can also define their own.
157 * These strings use java style scoping, to ensure they are unique -- for
158 * example, the standard {@link #ACTION_VIEW} is called
159 * "android.intent.action.VIEW".</p>
160 *
161 * <p>Put together, the set of actions, data types, categories, and extra data
162 * defines a language for the system allowing for the expression of phrases
163 * such as "call john smith's cell".  As applications are added to the system,
164 * they can extend this language by adding new actions, types, and categories, or
165 * they can modify the behavior of existing phrases by supplying their own
166 * activities that handle them.</p>
167 *
168 * <a name="IntentResolution"></a>
169 * <h3>Intent Resolution</h3>
170 *
171 * <p>There are two primary forms of intents you will use.
172 *
173 * <ul>
174 *     <li> <p><b>Explicit Intents</b> have specified a component (via
175 *     {@link #setComponent} or {@link #setClass}), which provides the exact
176 *     class to be run.  Often these will not include any other information,
177 *     simply being a way for an application to launch various internal
178 *     activities it has as the user interacts with the application.
179 *
180 *     <li> <p><b>Implicit Intents</b> have not specified a component;
181 *     instead, they must include enough information for the system to
182 *     determine which of the available components is best to run for that
183 *     intent.
184 * </ul>
185 *
186 * <p>When using implicit intents, given such an arbitrary intent we need to
187 * know what to do with it. This is handled by the process of <em>Intent
188 * resolution</em>, which maps an Intent to an {@link android.app.Activity},
189 * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
190 * more activities/receivers) that can handle it.</p>
191 *
192 * <p>The intent resolution mechanism basically revolves around matching an
193 * Intent against all of the &lt;intent-filter&gt; descriptions in the
194 * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
195 * objects explicitly registered with {@link Context#registerReceiver}.)  More
196 * details on this can be found in the documentation on the {@link
197 * IntentFilter} class.</p>
198 *
199 * <p>There are three pieces of information in the Intent that are used for
200 * resolution: the action, type, and category.  Using this information, a query
201 * is done on the {@link PackageManager} for a component that can handle the
202 * intent. The appropriate component is determined based on the intent
203 * information supplied in the <code>AndroidManifest.xml</code> file as
204 * follows:</p>
205 *
206 * <ul>
207 *     <li> <p>The <b>action</b>, if given, must be listed by the component as
208 *         one it handles.</p>
209 *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
210 *         already supplied in the Intent.  Like the action, if a type is
211 *         included in the intent (either explicitly or implicitly in its
212 *         data), then this must be listed by the component as one it handles.</p>
213 *     <li> For data that is not a <code>content:</code> URI and where no explicit
214 *         type is included in the Intent, instead the <b>scheme</b> of the
215 *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
216 *         considered. Again like the action, if we are matching a scheme it
217 *         must be listed by the component as one it can handle.
218 *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
219 *         by the activity as categories it handles.  That is, if you include
220 *         the categories {@link #CATEGORY_LAUNCHER} and
221 *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
222 *         with an intent that lists <em>both</em> of those categories.
223 *         Activities will very often need to support the
224 *         {@link #CATEGORY_DEFAULT} so that they can be found by
225 *         {@link Context#startActivity Context.startActivity()}.</p>
226 * </ul>
227 *
228 * <p>For example, consider the Note Pad sample application that
229 * allows user to browse through a list of notes data and view details about
230 * individual items.  Text in italics indicate places were you would replace a
231 * name with one specific to your own package.</p>
232 *
233 * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
234 *       package="<i>com.android.notepad</i>"&gt;
235 *     &lt;application android:icon="@drawable/app_notes"
236 *             android:label="@string/app_name"&gt;
237 *
238 *         &lt;provider class=".NotePadProvider"
239 *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
240 *
241 *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
242 *             &lt;intent-filter&gt;
243 *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
244 *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
245 *             &lt;/intent-filter&gt;
246 *             &lt;intent-filter&gt;
247 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
248 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
249 *                 &lt;action android:name="android.intent.action.PICK" /&gt;
250 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
251 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
252 *             &lt;/intent-filter&gt;
253 *             &lt;intent-filter&gt;
254 *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
255 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
256 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
257 *             &lt;/intent-filter&gt;
258 *         &lt;/activity&gt;
259 *
260 *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
261 *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
262 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
263 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
264 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
265 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
266 *             &lt;/intent-filter&gt;
267 *
268 *             &lt;intent-filter&gt;
269 *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
270 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
271 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
272 *             &lt;/intent-filter&gt;
273 *
274 *         &lt;/activity&gt;
275 *
276 *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
277 *                 android:theme="@android:style/Theme.Dialog"&gt;
278 *             &lt;intent-filter android:label="@string/resolve_title"&gt;
279 *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
280 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
281 *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
282 *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
283 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
284 *             &lt;/intent-filter&gt;
285 *         &lt;/activity&gt;
286 *
287 *     &lt;/application&gt;
288 * &lt;/manifest&gt;</pre>
289 *
290 * <p>The first activity,
291 * <code>com.android.notepad.NotesList</code>, serves as our main
292 * entry into the app.  It can do three things as described by its three intent
293 * templates:
294 * <ol>
295 * <li><pre>
296 * &lt;intent-filter&gt;
297 *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
298 *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
299 * &lt;/intent-filter&gt;</pre>
300 * <p>This provides a top-level entry into the NotePad application: the standard
301 * MAIN action is a main entry point (not requiring any other information in
302 * the Intent), and the LAUNCHER category says that this entry point should be
303 * listed in the application launcher.</p>
304 * <li><pre>
305 * &lt;intent-filter&gt;
306 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
307 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
308 *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
309 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
310 *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
311 * &lt;/intent-filter&gt;</pre>
312 * <p>This declares the things that the activity can do on a directory of
313 * notes.  The type being supported is given with the &lt;type&gt; tag, where
314 * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
315 * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
316 * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
317 * The activity allows the user to view or edit the directory of data (via
318 * the VIEW and EDIT actions), or to pick a particular note and return it
319 * to the caller (via the PICK action).  Note also the DEFAULT category
320 * supplied here: this is <em>required</em> for the
321 * {@link Context#startActivity Context.startActivity} method to resolve your
322 * activity when its component name is not explicitly specified.</p>
323 * <li><pre>
324 * &lt;intent-filter&gt;
325 *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
326 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
327 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
328 * &lt;/intent-filter&gt;</pre>
329 * <p>This filter describes the ability return to the caller a note selected by
330 * the user without needing to know where it came from.  The data type
331 * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
332 * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
333 * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
334 * The GET_CONTENT action is similar to the PICK action, where the activity
335 * will return to its caller a piece of data selected by the user.  Here,
336 * however, the caller specifies the type of data they desire instead of
337 * the type of data the user will be picking from.</p>
338 * </ol>
339 *
340 * <p>Given these capabilities, the following intents will resolve to the
341 * NotesList activity:</p>
342 *
343 * <ul>
344 *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
345 *         activities that can be used as top-level entry points into an
346 *         application.</p>
347 *     <li> <p><b>{ action=android.app.action.MAIN,
348 *         category=android.app.category.LAUNCHER }</b> is the actual intent
349 *         used by the Launcher to populate its top-level list.</p>
350 *     <li> <p><b>{ action=android.intent.action.VIEW
351 *          data=content://com.google.provider.NotePad/notes }</b>
352 *         displays a list of all the notes under
353 *         "content://com.google.provider.NotePad/notes", which
354 *         the user can browse through and see the details on.</p>
355 *     <li> <p><b>{ action=android.app.action.PICK
356 *          data=content://com.google.provider.NotePad/notes }</b>
357 *         provides a list of the notes under
358 *         "content://com.google.provider.NotePad/notes", from which
359 *         the user can pick a note whose data URL is returned back to the caller.</p>
360 *     <li> <p><b>{ action=android.app.action.GET_CONTENT
361 *          type=vnd.android.cursor.item/vnd.google.note }</b>
362 *         is similar to the pick action, but allows the caller to specify the
363 *         kind of data they want back so that the system can find the appropriate
364 *         activity to pick something of that data type.</p>
365 * </ul>
366 *
367 * <p>The second activity,
368 * <code>com.android.notepad.NoteEditor</code>, shows the user a single
369 * note entry and allows them to edit it.  It can do two things as described
370 * by its two intent templates:
371 * <ol>
372 * <li><pre>
373 * &lt;intent-filter android:label="@string/resolve_edit"&gt;
374 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
375 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
376 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
377 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
378 * &lt;/intent-filter&gt;</pre>
379 * <p>The first, primary, purpose of this activity is to let the user interact
380 * with a single note, as decribed by the MIME type
381 * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
382 * either VIEW a note or allow the user to EDIT it.  Again we support the
383 * DEFAULT category to allow the activity to be launched without explicitly
384 * specifying its component.</p>
385 * <li><pre>
386 * &lt;intent-filter&gt;
387 *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
388 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
389 *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
390 * &lt;/intent-filter&gt;</pre>
391 * <p>The secondary use of this activity is to insert a new note entry into
392 * an existing directory of notes.  This is used when the user creates a new
393 * note: the INSERT action is executed on the directory of notes, causing
394 * this activity to run and have the user create the new note data which
395 * it then adds to the content provider.</p>
396 * </ol>
397 *
398 * <p>Given these capabilities, the following intents will resolve to the
399 * NoteEditor activity:</p>
400 *
401 * <ul>
402 *     <li> <p><b>{ action=android.intent.action.VIEW
403 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
404 *         shows the user the content of note <var>{ID}</var>.</p>
405 *     <li> <p><b>{ action=android.app.action.EDIT
406 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
407 *         allows the user to edit the content of note <var>{ID}</var>.</p>
408 *     <li> <p><b>{ action=android.app.action.INSERT
409 *          data=content://com.google.provider.NotePad/notes }</b>
410 *         creates a new, empty note in the notes list at
411 *         "content://com.google.provider.NotePad/notes"
412 *         and allows the user to edit it.  If they keep their changes, the URI
413 *         of the newly created note is returned to the caller.</p>
414 * </ul>
415 *
416 * <p>The last activity,
417 * <code>com.android.notepad.TitleEditor</code>, allows the user to
418 * edit the title of a note.  This could be implemented as a class that the
419 * application directly invokes (by explicitly setting its component in
420 * the Intent), but here we show a way you can publish alternative
421 * operations on existing data:</p>
422 *
423 * <pre>
424 * &lt;intent-filter android:label="@string/resolve_title"&gt;
425 *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
426 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
427 *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
428 *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
429 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
430 * &lt;/intent-filter&gt;</pre>
431 *
432 * <p>In the single intent template here, we
433 * have created our own private action called
434 * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
435 * edit the title of a note.  It must be invoked on a specific note
436 * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
437 * view and edit actions, but here displays and edits the title contained
438 * in the note data.
439 *
440 * <p>In addition to supporting the default category as usual, our title editor
441 * also supports two other standard categories: ALTERNATIVE and
442 * SELECTED_ALTERNATIVE.  Implementing
443 * these categories allows others to find the special action it provides
444 * without directly knowing about it, through the
445 * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
446 * more often to build dynamic menu items with
447 * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
448 * template here was also supply an explicit name for the template
449 * (via <code>android:label="@string/resolve_title"</code>) to better control
450 * what the user sees when presented with this activity as an alternative
451 * action to the data they are viewing.
452 *
453 * <p>Given these capabilities, the following intent will resolve to the
454 * TitleEditor activity:</p>
455 *
456 * <ul>
457 *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
458 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
459 *         displays and allows the user to edit the title associated
460 *         with note <var>{ID}</var>.</p>
461 * </ul>
462 *
463 * <h3>Standard Activity Actions</h3>
464 *
465 * <p>These are the current standard actions that Intent defines for launching
466 * activities (usually through {@link Context#startActivity}.  The most
467 * important, and by far most frequently used, are {@link #ACTION_MAIN} and
468 * {@link #ACTION_EDIT}.
469 *
470 * <ul>
471 *     <li> {@link #ACTION_MAIN}
472 *     <li> {@link #ACTION_VIEW}
473 *     <li> {@link #ACTION_ATTACH_DATA}
474 *     <li> {@link #ACTION_EDIT}
475 *     <li> {@link #ACTION_PICK}
476 *     <li> {@link #ACTION_CHOOSER}
477 *     <li> {@link #ACTION_GET_CONTENT}
478 *     <li> {@link #ACTION_DIAL}
479 *     <li> {@link #ACTION_CALL}
480 *     <li> {@link #ACTION_SEND}
481 *     <li> {@link #ACTION_SENDTO}
482 *     <li> {@link #ACTION_ANSWER}
483 *     <li> {@link #ACTION_INSERT}
484 *     <li> {@link #ACTION_DELETE}
485 *     <li> {@link #ACTION_RUN}
486 *     <li> {@link #ACTION_SYNC}
487 *     <li> {@link #ACTION_PICK_ACTIVITY}
488 *     <li> {@link #ACTION_SEARCH}
489 *     <li> {@link #ACTION_WEB_SEARCH}
490 *     <li> {@link #ACTION_FACTORY_TEST}
491 * </ul>
492 *
493 * <h3>Standard Broadcast Actions</h3>
494 *
495 * <p>These are the current standard actions that Intent defines for receiving
496 * broadcasts (usually through {@link Context#registerReceiver} or a
497 * &lt;receiver&gt; tag in a manifest).
498 *
499 * <ul>
500 *     <li> {@link #ACTION_TIME_TICK}
501 *     <li> {@link #ACTION_TIME_CHANGED}
502 *     <li> {@link #ACTION_TIMEZONE_CHANGED}
503 *     <li> {@link #ACTION_BOOT_COMPLETED}
504 *     <li> {@link #ACTION_PACKAGE_ADDED}
505 *     <li> {@link #ACTION_PACKAGE_CHANGED}
506 *     <li> {@link #ACTION_PACKAGE_REMOVED}
507 *     <li> {@link #ACTION_PACKAGE_RESTARTED}
508 *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
509 *     <li> {@link #ACTION_UID_REMOVED}
510 *     <li> {@link #ACTION_BATTERY_CHANGED}
511 *     <li> {@link #ACTION_POWER_CONNECTED}
512 *     <li> {@link #ACTION_POWER_DISCONNECTED}
513 *     <li> {@link #ACTION_SHUTDOWN}
514 * </ul>
515 *
516 * <h3>Standard Categories</h3>
517 *
518 * <p>These are the current standard categories that can be used to further
519 * clarify an Intent via {@link #addCategory}.
520 *
521 * <ul>
522 *     <li> {@link #CATEGORY_DEFAULT}
523 *     <li> {@link #CATEGORY_BROWSABLE}
524 *     <li> {@link #CATEGORY_TAB}
525 *     <li> {@link #CATEGORY_ALTERNATIVE}
526 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
527 *     <li> {@link #CATEGORY_LAUNCHER}
528 *     <li> {@link #CATEGORY_INFO}
529 *     <li> {@link #CATEGORY_HOME}
530 *     <li> {@link #CATEGORY_PREFERENCE}
531 *     <li> {@link #CATEGORY_TEST}
532 * </ul>
533 *
534 * <h3>Standard Extra Data</h3>
535 *
536 * <p>These are the current standard fields that can be used as extra data via
537 * {@link #putExtra}.
538 *
539 * <ul>
540 *     <li> {@link #EXTRA_TEMPLATE}
541 *     <li> {@link #EXTRA_INTENT}
542 *     <li> {@link #EXTRA_STREAM}
543 *     <li> {@link #EXTRA_TEXT}
544 * </ul>
545 *
546 * <h3>Flags</h3>
547 *
548 * <p>These are the possible flags that can be used in the Intent via
549 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
550 * of all possible flags.
551 */
552public class Intent implements Parcelable {
553    // ---------------------------------------------------------------------
554    // ---------------------------------------------------------------------
555    // Standard intent activity actions (see action variable).
556
557    /**
558     *  Activity Action: Start as a main entry point, does not expect to
559     *  receive data.
560     *  <p>Input: nothing
561     *  <p>Output: nothing
562     */
563    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
564    public static final String ACTION_MAIN = "android.intent.action.MAIN";
565
566    /**
567     * Activity Action: Display the data to the user.  This is the most common
568     * action performed on data -- it is the generic action you can use on
569     * a piece of data to get the most reasonable thing to occur.  For example,
570     * when used on a contacts entry it will view the entry; when used on a
571     * mailto: URI it will bring up a compose window filled with the information
572     * supplied by the URI; when used with a tel: URI it will invoke the
573     * dialer.
574     * <p>Input: {@link #getData} is URI from which to retrieve data.
575     * <p>Output: nothing.
576     */
577    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
578    public static final String ACTION_VIEW = "android.intent.action.VIEW";
579
580    /**
581     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
582     * performed on a piece of data.
583     */
584    public static final String ACTION_DEFAULT = ACTION_VIEW;
585
586    /**
587     * Used to indicate that some piece of data should be attached to some other
588     * place.  For example, image data could be attached to a contact.  It is up
589     * to the recipient to decide where the data should be attached; the intent
590     * does not specify the ultimate destination.
591     * <p>Input: {@link #getData} is URI of data to be attached.
592     * <p>Output: nothing.
593     */
594    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
595    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
596
597    /**
598     * Activity Action: Provide explicit editable access to the given data.
599     * <p>Input: {@link #getData} is URI of data to be edited.
600     * <p>Output: nothing.
601     */
602    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
603    public static final String ACTION_EDIT = "android.intent.action.EDIT";
604
605    /**
606     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
607     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
608     * The extras can contain type specific data to pass through to the editing/creating
609     * activity.
610     * <p>Output: The URI of the item that was picked.  This must be a content:
611     * URI so that any receiver can access it.
612     */
613    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
614    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
615
616    /**
617     * Activity Action: Pick an item from the data, returning what was selected.
618     * <p>Input: {@link #getData} is URI containing a directory of data
619     * (vnd.android.cursor.dir/*) from which to pick an item.
620     * <p>Output: The URI of the item that was picked.
621     */
622    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
623    public static final String ACTION_PICK = "android.intent.action.PICK";
624
625    /**
626     * Activity Action: Creates a shortcut.
627     * <p>Input: Nothing.</p>
628     * <p>Output: An Intent representing the shortcut. The intent must contain three
629     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
630     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
631     * (value: ShortcutIconResource).</p>
632     *
633     * @see #EXTRA_SHORTCUT_INTENT
634     * @see #EXTRA_SHORTCUT_NAME
635     * @see #EXTRA_SHORTCUT_ICON
636     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
637     * @see android.content.Intent.ShortcutIconResource
638     */
639    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
640    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
641
642    /**
643     * The name of the extra used to define the Intent of a shortcut.
644     *
645     * @see #ACTION_CREATE_SHORTCUT
646     */
647    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
648    /**
649     * The name of the extra used to define the name of a shortcut.
650     *
651     * @see #ACTION_CREATE_SHORTCUT
652     */
653    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
654    /**
655     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
656     *
657     * @see #ACTION_CREATE_SHORTCUT
658     */
659    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
660    /**
661     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
662     *
663     * @see #ACTION_CREATE_SHORTCUT
664     * @see android.content.Intent.ShortcutIconResource
665     */
666    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
667            "android.intent.extra.shortcut.ICON_RESOURCE";
668
669    /**
670     * Represents a shortcut/live folder icon resource.
671     *
672     * @see Intent#ACTION_CREATE_SHORTCUT
673     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
674     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
675     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
676     */
677    public static class ShortcutIconResource implements Parcelable {
678        /**
679         * The package name of the application containing the icon.
680         */
681        public String packageName;
682
683        /**
684         * The resource name of the icon, including package, name and type.
685         */
686        public String resourceName;
687
688        /**
689         * Creates a new ShortcutIconResource for the specified context and resource
690         * identifier.
691         *
692         * @param context The context of the application.
693         * @param resourceId The resource idenfitier for the icon.
694         * @return A new ShortcutIconResource with the specified's context package name
695         *         and icon resource idenfitier.
696         */
697        public static ShortcutIconResource fromContext(Context context, int resourceId) {
698            ShortcutIconResource icon = new ShortcutIconResource();
699            icon.packageName = context.getPackageName();
700            icon.resourceName = context.getResources().getResourceName(resourceId);
701            return icon;
702        }
703
704        /**
705         * Used to read a ShortcutIconResource from a Parcel.
706         */
707        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
708            new Parcelable.Creator<ShortcutIconResource>() {
709
710                public ShortcutIconResource createFromParcel(Parcel source) {
711                    ShortcutIconResource icon = new ShortcutIconResource();
712                    icon.packageName = source.readString();
713                    icon.resourceName = source.readString();
714                    return icon;
715                }
716
717                public ShortcutIconResource[] newArray(int size) {
718                    return new ShortcutIconResource[size];
719                }
720            };
721
722        /**
723         * No special parcel contents.
724         */
725        public int describeContents() {
726            return 0;
727        }
728
729        public void writeToParcel(Parcel dest, int flags) {
730            dest.writeString(packageName);
731            dest.writeString(resourceName);
732        }
733
734        @Override
735        public String toString() {
736            return resourceName;
737        }
738    }
739
740    /**
741     * Activity Action: Display an activity chooser, allowing the user to pick
742     * what they want to before proceeding.  This can be used as an alternative
743     * to the standard activity picker that is displayed by the system when
744     * you try to start an activity with multiple possible matches, with these
745     * differences in behavior:
746     * <ul>
747     * <li>You can specify the title that will appear in the activity chooser.
748     * <li>The user does not have the option to make one of the matching
749     * activities a preferred activity, and all possible activities will
750     * always be shown even if one of them is currently marked as the
751     * preferred activity.
752     * </ul>
753     * <p>
754     * This action should be used when the user will naturally expect to
755     * select an activity in order to proceed.  An example if when not to use
756     * it is when the user clicks on a "mailto:" link.  They would naturally
757     * expect to go directly to their mail app, so startActivity() should be
758     * called directly: it will
759     * either launch the current preferred app, or put up a dialog allowing the
760     * user to pick an app to use and optionally marking that as preferred.
761     * <p>
762     * In contrast, if the user is selecting a menu item to send a picture
763     * they are viewing to someone else, there are many different things they
764     * may want to do at this point: send it through e-mail, upload it to a
765     * web service, etc.  In this case the CHOOSER action should be used, to
766     * always present to the user a list of the things they can do, with a
767     * nice title given by the caller such as "Send this photo with:".
768     * <p>
769     * As a convenience, an Intent of this form can be created with the
770     * {@link #createChooser} function.
771     * <p>Input: No data should be specified.  get*Extra must have
772     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
773     * and can optionally have a {@link #EXTRA_TITLE} field containing the
774     * title text to display in the chooser.
775     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
776     */
777    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
778    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
779
780    /**
781     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
782     *
783     * @param target The Intent that the user will be selecting an activity
784     * to perform.
785     * @param title Optional title that will be displayed in the chooser.
786     * @return Return a new Intent object that you can hand to
787     * {@link Context#startActivity(Intent) Context.startActivity()} and
788     * related methods.
789     */
790    public static Intent createChooser(Intent target, CharSequence title) {
791        Intent intent = new Intent(ACTION_CHOOSER);
792        intent.putExtra(EXTRA_INTENT, target);
793        if (title != null) {
794            intent.putExtra(EXTRA_TITLE, title);
795        }
796        return intent;
797    }
798    /**
799     * Activity Action: Allow the user to select a particular kind of data and
800     * return it.  This is different than {@link #ACTION_PICK} in that here we
801     * just say what kind of data is desired, not a URI of existing data from
802     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
803     * create the data as it runs (for example taking a picture or recording a
804     * sound), let them browser over the web and download the desired data,
805     * etc.
806     * <p>
807     * There are two main ways to use this action: if you want an specific kind
808     * of data, such as a person contact, you set the MIME type to the kind of
809     * data you want and launch it with {@link Context#startActivity(Intent)}.
810     * The system will then launch the best application to select that kind
811     * of data for you.
812     * <p>
813     * You may also be interested in any of a set of types of content the user
814     * can pick.  For example, an e-mail application that wants to allow the
815     * user to add an attachment to an e-mail message can use this action to
816     * bring up a list of all of the types of content the user can attach.
817     * <p>
818     * In this case, you should wrap the GET_CONTENT intent with a chooser
819     * (through {@link #createChooser}), which will give the proper interface
820     * for the user to pick how to send your data and allow you to specify
821     * a prompt indicating what they are doing.  You will usually specify a
822     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
823     * broad range of content types the user can select from.
824     * <p>
825     * When using such a broad GET_CONTENT action, it is often desireable to
826     * only pick from data that can be represented as a stream.  This is
827     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
828     * <p>
829     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
830     * that no URI is supplied in the intent, as there are no constraints on
831     * where the returned data originally comes from.  You may also include the
832     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
833     * opened as a stream.
834     * <p>
835     * Output: The URI of the item that was picked.  This must be a content:
836     * URI so that any receiver can access it.
837     */
838    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
839    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
840    /**
841     * Activity Action: Dial a number as specified by the data.  This shows a
842     * UI with the number being dialed, allowing the user to explicitly
843     * initiate the call.
844     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
845     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
846     * number.
847     * <p>Output: nothing.
848     */
849    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
850    public static final String ACTION_DIAL = "android.intent.action.DIAL";
851    /**
852     * Activity Action: Perform a call to someone specified by the data.
853     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
854     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
855     * number.
856     * <p>Output: nothing.
857     *
858     * <p>Note: there will be restrictions on which applications can initiate a
859     * call; most applications should use the {@link #ACTION_DIAL}.
860     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
861     * numbers.  Applications can <strong>dial</strong> emergency numbers using
862     * {@link #ACTION_DIAL}, however.
863     */
864    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
865    public static final String ACTION_CALL = "android.intent.action.CALL";
866    /**
867     * Activity Action: Perform a call to an emergency number specified by the
868     * data.
869     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
870     * tel: URI of an explicit phone number.
871     * <p>Output: nothing.
872     * @hide
873     */
874    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
875    /**
876     * Activity action: Perform a call to any number (emergency or not)
877     * specified by the data.
878     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
879     * tel: URI of an explicit phone number.
880     * <p>Output: nothing.
881     * @hide
882     */
883    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
884    /**
885     * Activity Action: Send a message to someone specified by the data.
886     * <p>Input: {@link #getData} is URI describing the target.
887     * <p>Output: nothing.
888     */
889    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
890    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
891    /**
892     * Activity Action: Deliver some data to someone else.  Who the data is
893     * being delivered to is not specified; it is up to the receiver of this
894     * action to ask the user where the data should be sent.
895     * <p>
896     * When launching a SEND intent, you should usually wrap it in a chooser
897     * (through {@link #createChooser}), which will give the proper interface
898     * for the user to pick how to send your data and allow you to specify
899     * a prompt indicating what they are doing.
900     * <p>
901     * Input: {@link #getType} is the MIME type of the data being sent.
902     * get*Extra can have either a {@link #EXTRA_TEXT}
903     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
904     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
905     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
906     * if the MIME type is unknown (this will only allow senders that can
907     * handle generic data streams).
908     * <p>
909     * Optional standard extras, which may be interpreted by some recipients as
910     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
911     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
912     * <p>
913     * Output: nothing.
914     */
915    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
916    public static final String ACTION_SEND = "android.intent.action.SEND";
917    /**
918     * Activity Action: Deliver multiple data to someone else.
919     * <p>
920     * Like ACTION_SEND, except the data is multiple.
921     * <p>
922     * Input: {@link #getType} is the MIME type of the data being sent.
923     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
924     * #EXTRA_STREAM} field, containing the data to be sent.
925     * <p>
926     * Optional standard extras, which may be interpreted by some recipients as
927     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
928     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
929     * <p>
930     * Output: nothing.
931     */
932    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
933    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
934    /**
935     * Activity Action: Handle an incoming phone call.
936     * <p>Input: nothing.
937     * <p>Output: nothing.
938     */
939    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
940    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
941    /**
942     * Activity Action: Insert an empty item into the given container.
943     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
944     * in which to place the data.
945     * <p>Output: URI of the new data that was created.
946     */
947    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
948    public static final String ACTION_INSERT = "android.intent.action.INSERT";
949    /**
950     * Activity Action: Delete the given data from its container.
951     * <p>Input: {@link #getData} is URI of data to be deleted.
952     * <p>Output: nothing.
953     */
954    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
955    public static final String ACTION_DELETE = "android.intent.action.DELETE";
956    /**
957     * Activity Action: Run the data, whatever that means.
958     * <p>Input: ?  (Note: this is currently specific to the test harness.)
959     * <p>Output: nothing.
960     */
961    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
962    public static final String ACTION_RUN = "android.intent.action.RUN";
963    /**
964     * Activity Action: Perform a data synchronization.
965     * <p>Input: ?
966     * <p>Output: ?
967     */
968    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
969    public static final String ACTION_SYNC = "android.intent.action.SYNC";
970    /**
971     * Activity Action: Pick an activity given an intent, returning the class
972     * selected.
973     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
974     * used with {@link PackageManager#queryIntentActivities} to determine the
975     * set of activities from which to pick.
976     * <p>Output: Class name of the activity that was selected.
977     */
978    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
979    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
980    /**
981     * Activity Action: Perform a search.
982     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
983     * is the text to search for.  If empty, simply
984     * enter your search results Activity with the search UI activated.
985     * <p>Output: nothing.
986     */
987    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
988    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
989    /**
990     * Activity Action: Start the platform-defined tutorial
991     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
992     * is the text to search for.  If empty, simply
993     * enter your search results Activity with the search UI activated.
994     * <p>Output: nothing.
995     */
996    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
997    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
998    /**
999     * Activity Action: Perform a web search.
1000     * <p>
1001     * Input: {@link android.app.SearchManager#QUERY
1002     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1003     * a url starts with http or https, the site will be opened. If it is plain
1004     * text, Google search will be applied.
1005     * <p>
1006     * Output: nothing.
1007     */
1008    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1009    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1010    /**
1011     * Activity Action: List all available applications
1012     * <p>Input: Nothing.
1013     * <p>Output: nothing.
1014     */
1015    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1016    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1017    /**
1018     * Activity Action: Show settings for choosing wallpaper
1019     * <p>Input: Nothing.
1020     * <p>Output: Nothing.
1021     */
1022    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1023    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1024
1025    /**
1026     * Activity Action: Show activity for reporting a bug.
1027     * <p>Input: Nothing.
1028     * <p>Output: Nothing.
1029     */
1030    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1031    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1032
1033    /**
1034     *  Activity Action: Main entry point for factory tests.  Only used when
1035     *  the device is booting in factory test node.  The implementing package
1036     *  must be installed in the system image.
1037     *  <p>Input: nothing
1038     *  <p>Output: nothing
1039     */
1040    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1041
1042    /**
1043     * Activity Action: The user pressed the "call" button to go to the dialer
1044     * or other appropriate UI for placing a call.
1045     * <p>Input: Nothing.
1046     * <p>Output: Nothing.
1047     */
1048    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1049    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1050
1051    /**
1052     * Activity Action: Start Voice Command.
1053     * <p>Input: Nothing.
1054     * <p>Output: Nothing.
1055     */
1056    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1057    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1058
1059    /**
1060     * Activity Action: Start action associated with long pressing on the
1061     * search key.
1062     * <p>Input: Nothing.
1063     * <p>Output: Nothing.
1064     */
1065    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1066    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1067
1068    /**
1069     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1070     * This intent is delivered to the package which installed the application, usually
1071     * the Market.
1072     * <p>Input: No data is specified. The bug report is passed in using
1073     * an {@link #EXTRA_BUG_REPORT} field.
1074     * <p>Output: Nothing.
1075     * @hide
1076     */
1077    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1078    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1079
1080    /**
1081     * Activity Action: Show power usage information to the user.
1082     * <p>Input: Nothing.
1083     * <p>Output: Nothing.
1084     */
1085    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1086    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1087
1088    /**
1089     * Activity Action: Setup wizard to launch after a platform update.  This
1090     * activity should have a string meta-data field associated with it,
1091     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1092     * the platform for setup.  The activity will be launched only if
1093     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1094     * same value.
1095     * <p>Input: Nothing.
1096     * <p>Output: Nothing.
1097     * @hide
1098     */
1099    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1100    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1101
1102    /**
1103     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1104     * describing the last run version of the platform that was setup.
1105     * @hide
1106     */
1107    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1108
1109    // ---------------------------------------------------------------------
1110    // ---------------------------------------------------------------------
1111    // Standard intent broadcast actions (see action variable).
1112
1113    /**
1114     * Broadcast Action: Sent after the screen turns off.
1115     *
1116     * <p class="note">This is a protected intent that can only be sent
1117     * by the system.
1118     */
1119    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1120    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1121    /**
1122     * Broadcast Action: Sent after the screen turns on.
1123     *
1124     * <p class="note">This is a protected intent that can only be sent
1125     * by the system.
1126     */
1127    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1128    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1129
1130    /**
1131     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1132     * keyguard is gone).
1133     *
1134     * <p class="note">This is a protected intent that can only be sent
1135     * by the system.
1136     */
1137    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1138    public static final String ACTION_USER_PRESENT= "android.intent.action.USER_PRESENT";
1139
1140    /**
1141     * Broadcast Action: The current time has changed.  Sent every
1142     * minute.  You can <em>not</em> receive this through components declared
1143     * in manifests, only by exlicitly registering for it with
1144     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1145     * Context.registerReceiver()}.
1146     *
1147     * <p class="note">This is a protected intent that can only be sent
1148     * by the system.
1149     */
1150    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1151    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1152    /**
1153     * Broadcast Action: The time was set.
1154     */
1155    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1156    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1157    /**
1158     * Broadcast Action: The date has changed.
1159     */
1160    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1161    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1162    /**
1163     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1164     * <ul>
1165     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1166     * </ul>
1167     *
1168     * <p class="note">This is a protected intent that can only be sent
1169     * by the system.
1170     */
1171    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1172    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1173    /**
1174     * Alarm Changed Action: This is broadcast when the AlarmClock
1175     * application's alarm is set or unset.  It is used by the
1176     * AlarmClock application and the StatusBar service.
1177     * @hide
1178     */
1179    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1180    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1181    /**
1182     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1183     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1184     * @hide
1185     */
1186    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1187    public static final String ACTION_SYNC_STATE_CHANGED
1188            = "android.intent.action.SYNC_STATE_CHANGED";
1189    /**
1190     * Broadcast Action: This is broadcast once, after the system has finished
1191     * booting.  It can be used to perform application-specific initialization,
1192     * such as installing alarms.  You must hold the
1193     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1194     * in order to receive this broadcast.
1195     *
1196     * <p class="note">This is a protected intent that can only be sent
1197     * by the system.
1198     */
1199    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1200    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1201    /**
1202     * Broadcast Action: This is broadcast when a user action should request a
1203     * temporary system dialog to dismiss.  Some examples of temporary system
1204     * dialogs are the notification window-shade and the recent tasks dialog.
1205     */
1206    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1207    /**
1208     * Broadcast Action: Trigger the download and eventual installation
1209     * of a package.
1210     * <p>Input: {@link #getData} is the URI of the package file to download.
1211     *
1212     * <p class="note">This is a protected intent that can only be sent
1213     * by the system.
1214     */
1215    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1216    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1217    /**
1218     * Broadcast Action: A new application package has been installed on the
1219     * device. The data contains the name of the package.  Note that the
1220     * newly installed package does <em>not</em> receive this broadcast.
1221     * <p>My include the following extras:
1222     * <ul>
1223     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1224     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1225     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1226     * </ul>
1227     *
1228     * <p class="note">This is a protected intent that can only be sent
1229     * by the system.
1230     */
1231    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1232    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1233    /**
1234     * Broadcast Action: A new version of an application package has been
1235     * installed, replacing an existing version that was previously installed.
1236     * The data contains the name of the package.
1237     * <p>My include the following extras:
1238     * <ul>
1239     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1240     * </ul>
1241     *
1242     * <p class="note">This is a protected intent that can only be sent
1243     * by the system.
1244     */
1245    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1246    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1247    /**
1248     * Broadcast Action: An existing application package has been removed from
1249     * the device.  The data contains the name of the package.  The package
1250     * that is being installed does <em>not</em> receive this Intent.
1251     * <ul>
1252     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1253     * to the package.
1254     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1255     * application -- data and code -- is being removed.
1256     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1257     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1258     * </ul>
1259     *
1260     * <p class="note">This is a protected intent that can only be sent
1261     * by the system.
1262     */
1263    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1264    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1265    /**
1266     * Broadcast Action: An existing application package has been changed (e.g. a component has been
1267     * enabled or disabled.  The data contains the name of the package.
1268     * <ul>
1269     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1270     * </ul>
1271     *
1272     * <p class="note">This is a protected intent that can only be sent
1273     * by the system.
1274     */
1275    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1276    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1277    /**
1278     * Broadcast Action: The user has restarted a package, and all of its
1279     * processes have been killed.  All runtime state
1280     * associated with it (processes, alarms, notifications, etc) should
1281     * be removed.  Note that the restarted package does <em>not</em>
1282     * receive this broadcast.
1283     * The data contains the name of the package.
1284     * <ul>
1285     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1286     * </ul>
1287     *
1288     * <p class="note">This is a protected intent that can only be sent
1289     * by the system.
1290     */
1291    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1292    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1293    /**
1294     * Broadcast Action: The user has cleared the data of a package.  This should
1295     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1296     * its persistent data is erased and this broadcast sent.
1297     * Note that the cleared package does <em>not</em>
1298     * receive this broadcast. The data contains the name of the package.
1299     * <ul>
1300     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1301     * </ul>
1302     *
1303     * <p class="note">This is a protected intent that can only be sent
1304     * by the system.
1305     */
1306    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1307    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1308    /**
1309     * Broadcast Action: A user ID has been removed from the system.  The user
1310     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1311     *
1312     * <p class="note">This is a protected intent that can only be sent
1313     * by the system.
1314     */
1315    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1316    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1317    /**
1318     * Broadcast Action:  The current system wallpaper has changed.  See
1319     * {@link Context#getWallpaper} for retrieving the new wallpaper.
1320     */
1321    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1322    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1323    /**
1324     * Broadcast Action: The current device {@link android.content.res.Configuration}
1325     * (orientation, locale, etc) has changed.  When such a change happens, the
1326     * UIs (view hierarchy) will need to be rebuilt based on this new
1327     * information; for the most part, applications don't need to worry about
1328     * this, because the system will take care of stopping and restarting the
1329     * application to make sure it sees the new changes.  Some system code that
1330     * can not be restarted will need to watch for this action and handle it
1331     * appropriately.
1332     *
1333     * <p class="note">This is a protected intent that can only be sent
1334     * by the system.
1335     *
1336     * @see android.content.res.Configuration
1337     */
1338    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1339    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1340    /**
1341     * Broadcast Action:  The charging state, or charge level of the battery has
1342     * changed.
1343     *
1344     * <p class="note">
1345     * You can <em>not</em> receive this through components declared
1346     * in manifests, only by explicitly registering for it with
1347     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1348     * Context.registerReceiver()}.
1349     *
1350     * <p class="note">This is a protected intent that can only be sent
1351     * by the system.
1352     */
1353    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1354    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1355    /**
1356     * Broadcast Action:  Indicates low battery condition on the device.
1357     * This broadcast corresponds to the "Low battery warning" system dialog.
1358     *
1359     * <p class="note">This is a protected intent that can only be sent
1360     * by the system.
1361     */
1362    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1363    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1364    /**
1365     * Broadcast Action:  Indicates the battery is now okay after being low.
1366     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1367     * gone back up to an okay state.
1368     *
1369     * <p class="note">This is a protected intent that can only be sent
1370     * by the system.
1371     */
1372    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1373    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1374    /**
1375     * Broadcast Action:  External power has been connected to the device.
1376     * This is intended for applications that wish to register specifically to this notification.
1377     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1378     * stay active to receive this notification.  This action can be used to implement actions
1379     * that wait until power is available to trigger.
1380     *
1381     * <p class="note">This is a protected intent that can only be sent
1382     * by the system.
1383     */
1384    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1385    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1386    /**
1387     * Broadcast Action:  External power has been removed from the device.
1388     * This is intended for applications that wish to register specifically to this notification.
1389     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1390     * stay active to receive this notification.  This action can be used to implement actions
1391     * that wait until power is available to trigger.
1392     *
1393     * <p class="note">This is a protected intent that can only be sent
1394     * by the system.
1395     */
1396    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1397    public static final String ACTION_POWER_DISCONNECTED =
1398            "android.intent.action.ACTION_POWER_DISCONNECTED";
1399    /**
1400     * Broadcast Action:  Device is shutting down.
1401     * This is broadcast when the device is being shut down (completely turned
1402     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1403     * will proceed and all unsaved data lost.  Apps will not normally need
1404     * to handle this, since the foreground activity will be paused as well.
1405     *
1406     * <p class="note">This is a protected intent that can only be sent
1407     * by the system.
1408     */
1409    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1410    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1411    /**
1412     * Activity Action:  Start this activity to request system shutdown.
1413     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1414     * to request confirmation from the user before shutting down.
1415     *
1416     * <p class="note">This is a protected intent that can only be sent
1417     * by the system.
1418     *
1419     * {@hide}
1420     */
1421    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1422    /**
1423     * Broadcast Action:  Indicates low memory condition on the device
1424     *
1425     * <p class="note">This is a protected intent that can only be sent
1426     * by the system.
1427     */
1428    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1429    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1430    /**
1431     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1432     *
1433     * <p class="note">This is a protected intent that can only be sent
1434     * by the system.
1435     */
1436    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1437    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1438    /**
1439     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1440     * and package management should be started.
1441     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1442     * notification.
1443     */
1444    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1445    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1446    /**
1447     * Broadcast Action:  The device has entered USB Mass Storage mode.
1448     * This is used mainly for the USB Settings panel.
1449     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1450     * when the SD card file system is mounted or unmounted
1451     */
1452    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1453    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1454
1455    /**
1456     * Broadcast Action:  The device has exited USB Mass Storage mode.
1457     * This is used mainly for the USB Settings panel.
1458     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1459     * when the SD card file system is mounted or unmounted
1460     */
1461    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1462    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1463
1464    /**
1465     * Broadcast Action:  External media has been removed.
1466     * The path to the mount point for the removed media is contained in the Intent.mData field.
1467     */
1468    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1469    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1470
1471    /**
1472     * Broadcast Action:  External media is present, but not mounted at its mount point.
1473     * The path to the mount point for the removed media is contained in the Intent.mData field.
1474     */
1475    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1476    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1477
1478    /**
1479     * Broadcast Action:  External media is present, and being disk-checked
1480     * The path to the mount point for the checking media is contained in the Intent.mData field.
1481     */
1482    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1483    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1484
1485    /**
1486     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1487     * The path to the mount point for the checking media is contained in the Intent.mData field.
1488     */
1489    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1490    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1491
1492    /**
1493     * Broadcast Action:  External media is present and mounted at its mount point.
1494     * The path to the mount point for the removed media is contained in the Intent.mData field.
1495     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1496     * media was mounted read only.
1497     */
1498    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1499    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1500
1501    /**
1502     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1503     * The path to the mount point for the removed media is contained in the Intent.mData field.
1504     */
1505    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1506    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1507
1508    /**
1509     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1510     * The path to the mount point for the removed media is contained in the Intent.mData field.
1511     */
1512    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1513    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1514
1515    /**
1516     * Broadcast Action:  External media is present but cannot be mounted.
1517     * The path to the mount point for the removed media is contained in the Intent.mData field.
1518     */
1519    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1520    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1521
1522   /**
1523     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1524     * Applications should close all files they have open within the mount point when they receive this intent.
1525     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1526     */
1527    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1528    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1529
1530    /**
1531     * Broadcast Action:  The media scanner has started scanning a directory.
1532     * The path to the directory being scanned is contained in the Intent.mData field.
1533     */
1534    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1535    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1536
1537   /**
1538     * Broadcast Action:  The media scanner has finished scanning a directory.
1539     * The path to the scanned directory is contained in the Intent.mData field.
1540     */
1541    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1542    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1543
1544   /**
1545     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1546     * The path to the file is contained in the Intent.mData field.
1547     */
1548    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1549    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1550
1551   /**
1552     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1553     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1554     * caused the broadcast.
1555     */
1556    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1557    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1558
1559    /**
1560     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1561     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1562     * caused the broadcast.
1563     */
1564    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1565    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1566
1567    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1568    // location; they are not general-purpose actions.
1569
1570    /**
1571     * Broadcast Action: An GTalk connection has been established.
1572     */
1573    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1574    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1575            "android.intent.action.GTALK_CONNECTED";
1576
1577    /**
1578     * Broadcast Action: An GTalk connection has been disconnected.
1579     */
1580    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1581    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1582            "android.intent.action.GTALK_DISCONNECTED";
1583
1584    /**
1585     * Broadcast Action: An input method has been changed.
1586     */
1587    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1588    public static final String ACTION_INPUT_METHOD_CHANGED =
1589            "android.intent.action.INPUT_METHOD_CHANGED";
1590
1591    /**
1592     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1593     * more radios have been turned off or on. The intent will have the following extra value:</p>
1594     * <ul>
1595     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1596     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1597     *   turned off</li>
1598     * </ul>
1599     *
1600     * <p class="note">This is a protected intent that can only be sent
1601     * by the system.
1602     */
1603    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1604    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1605
1606    /**
1607     * Broadcast Action: Some content providers have parts of their namespace
1608     * where they publish new events or items that the user may be especially
1609     * interested in. For these things, they may broadcast this action when the
1610     * set of interesting items change.
1611     *
1612     * For example, GmailProvider sends this notification when the set of unread
1613     * mail in the inbox changes.
1614     *
1615     * <p>The data of the intent identifies which part of which provider
1616     * changed. When queried through the content resolver, the data URI will
1617     * return the data set in question.
1618     *
1619     * <p>The intent will have the following extra values:
1620     * <ul>
1621     *   <li><em>count</em> - The number of items in the data set. This is the
1622     *       same as the number of items in the cursor returned by querying the
1623     *       data URI. </li>
1624     * </ul>
1625     *
1626     * This intent will be sent at boot (if the count is non-zero) and when the
1627     * data set changes. It is possible for the data set to change without the
1628     * count changing (for example, if a new unread message arrives in the same
1629     * sync operation in which a message is archived). The phone should still
1630     * ring/vibrate/etc as normal in this case.
1631     */
1632    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1633    public static final String ACTION_PROVIDER_CHANGED =
1634            "android.intent.action.PROVIDER_CHANGED";
1635
1636    /**
1637     * Broadcast Action: Wired Headset plugged in or unplugged.
1638     *
1639     * <p>The intent will have the following extra values:
1640     * <ul>
1641     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1642     *   <li><em>name</em> - Headset type, human readable string </li>
1643     * </ul>
1644     * </ul>
1645     */
1646    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1647    public static final String ACTION_HEADSET_PLUG =
1648            "android.intent.action.HEADSET_PLUG";
1649
1650    /**
1651     * Broadcast Action: An outgoing call is about to be placed.
1652     *
1653     * <p>The Intent will have the following extra value:
1654     * <ul>
1655     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1656     *       the phone number originally intended to be dialed.</li>
1657     * </ul>
1658     * <p>Once the broadcast is finished, the resultData is used as the actual
1659     * number to call.  If  <code>null</code>, no call will be placed.</p>
1660     * <p>It is perfectly acceptable for multiple receivers to process the
1661     * outgoing call in turn: for example, a parental control application
1662     * might verify that the user is authorized to place the call at that
1663     * time, then a number-rewriting application might add an area code if
1664     * one was not specified.</p>
1665     * <p>For consistency, any receiver whose purpose is to prohibit phone
1666     * calls should have a priority of 0, to ensure it will see the final
1667     * phone number to be dialed.
1668     * Any receiver whose purpose is to rewrite phone numbers to be called
1669     * should have a positive priority.
1670     * Negative priorities are reserved for the system for this broadcast;
1671     * using them may cause problems.</p>
1672     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1673     * abort the broadcast.</p>
1674     * <p>Emergency calls cannot be intercepted using this mechanism, and
1675     * other calls cannot be modified to call emergency numbers using this
1676     * mechanism.
1677     * <p>You must hold the
1678     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1679     * permission to receive this Intent.</p>
1680     *
1681     * <p class="note">This is a protected intent that can only be sent
1682     * by the system.
1683     */
1684    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1685    public static final String ACTION_NEW_OUTGOING_CALL =
1686            "android.intent.action.NEW_OUTGOING_CALL";
1687
1688    /**
1689     * Broadcast Action: Have the device reboot.  This is only for use by
1690     * system code.
1691     *
1692     * <p class="note">This is a protected intent that can only be sent
1693     * by the system.
1694     */
1695    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1696    public static final String ACTION_REBOOT =
1697            "android.intent.action.REBOOT";
1698
1699    /**
1700     * Broadcast Action: a remote intent is to be broadcasted.
1701     *
1702     * A remote intent is used for remote RPC between devices. The remote intent
1703     * is serialized and sent from one device to another device. The receiving
1704     * device parses the remote intent and broadcasts it. Note that anyone can
1705     * broadcast a remote intent. However, if the intent receiver of the remote intent
1706     * does not trust intent broadcasts from arbitrary intent senders, it should require
1707     * the sender to hold certain permissions so only trusted sender's broadcast will be
1708     * let through.
1709     */
1710    public static final String ACTION_REMOTE_INTENT =
1711            "android.intent.action.REMOTE_INTENT";
1712
1713    /**
1714     * Broadcast Action: hook for permforming cleanup after a system update.
1715     *
1716     * The broadcast is sent when the system is booting, before the
1717     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1718     * image.  A receiver for this should do its work and then disable itself
1719     * so that it does not get run again at the next boot.
1720     * @hide
1721     */
1722    public static final String ACTION_PRE_BOOT_COMPLETED =
1723            "android.intent.action.PRE_BOOT_COMPLETED";
1724
1725    // ---------------------------------------------------------------------
1726    // ---------------------------------------------------------------------
1727    // Standard intent categories (see addCategory()).
1728
1729    /**
1730     * Set if the activity should be an option for the default action
1731     * (center press) to perform on a piece of data.  Setting this will
1732     * hide from the user any activities without it set when performing an
1733     * action on some data.  Note that this is normal -not- set in the
1734     * Intent when initiating an action -- it is for use in intent filters
1735     * specified in packages.
1736     */
1737    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1738    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1739    /**
1740     * Activities that can be safely invoked from a browser must support this
1741     * category.  For example, if the user is viewing a web page or an e-mail
1742     * and clicks on a link in the text, the Intent generated execute that
1743     * link will require the BROWSABLE category, so that only activities
1744     * supporting this category will be considered as possible actions.  By
1745     * supporting this category, you are promising that there is nothing
1746     * damaging (without user intervention) that can happen by invoking any
1747     * matching Intent.
1748     */
1749    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1750    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1751    /**
1752     * Set if the activity should be considered as an alternative action to
1753     * the data the user is currently viewing.  See also
1754     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1755     * applies to the selection in a list of items.
1756     *
1757     * <p>Supporting this category means that you would like your activity to be
1758     * displayed in the set of alternative things the user can do, usually as
1759     * part of the current activity's options menu.  You will usually want to
1760     * include a specific label in the &lt;intent-filter&gt; of this action
1761     * describing to the user what it does.
1762     *
1763     * <p>The action of IntentFilter with this category is important in that it
1764     * describes the specific action the target will perform.  This generally
1765     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1766     * a specific name such as "com.android.camera.action.CROP.  Only one
1767     * alternative of any particular action will be shown to the user, so using
1768     * a specific action like this makes sure that your alternative will be
1769     * displayed while also allowing other applications to provide their own
1770     * overrides of that particular action.
1771     */
1772    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1773    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1774    /**
1775     * Set if the activity should be considered as an alternative selection
1776     * action to the data the user has currently selected.  This is like
1777     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1778     * of items from which the user can select, giving them alternatives to the
1779     * default action that will be performed on it.
1780     */
1781    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1782    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1783    /**
1784     * Intended to be used as a tab inside of an containing TabActivity.
1785     */
1786    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1787    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1788    /**
1789     * Should be displayed in the top-level launcher.
1790     */
1791    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1792    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1793    /**
1794     * Provides information about the package it is in; typically used if
1795     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1796     * a front-door to the user without having to be shown in the all apps list.
1797     */
1798    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1799    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1800    /**
1801     * This is the home activity, that is the first activity that is displayed
1802     * when the device boots.
1803     */
1804    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1805    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1806    /**
1807     * This activity is a preference panel.
1808     */
1809    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1810    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1811    /**
1812     * This activity is a development preference panel.
1813     */
1814    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1815    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1816    /**
1817     * Capable of running inside a parent activity container.
1818     */
1819    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1820    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1821    /**
1822     * This activity may be exercised by the monkey or other automated test tools.
1823     */
1824    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1825    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1826    /**
1827     * To be used as a test (not part of the normal user experience).
1828     */
1829    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1830    /**
1831     * To be used as a unit test (run through the Test Harness).
1832     */
1833    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1834    /**
1835     * To be used as an sample code example (not part of the normal user
1836     * experience).
1837     */
1838    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1839    /**
1840     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1841     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1842     * when queried, though it is allowable for those columns to be blank.
1843     */
1844    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1845    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1846
1847    /**
1848     * To be used as code under test for framework instrumentation tests.
1849     */
1850    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1851            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1852
1853    /**
1854     * Broadcast Action:  The phone was docked or undocked.  Includes the extra
1855     * field {@link #EXTRA_DOCK_STATE}, containing the current dock state.
1856     * @hide
1857     */
1858    public static final String ACTION_DOCK_EVENT = "android.intent.action.DOCK_EVENT";
1859
1860    // ---------------------------------------------------------------------
1861    // ---------------------------------------------------------------------
1862    // Standard extra data keys.
1863
1864    /**
1865     * The initial data to place in a newly created record.  Use with
1866     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1867     * fields as would be given to the underlying ContentProvider.insert()
1868     * call.
1869     */
1870    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1871
1872    /**
1873     * A constant CharSequence that is associated with the Intent, used with
1874     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1875     * this may be a styled CharSequence, so you must use
1876     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1877     * retrieve it.
1878     */
1879    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1880
1881    /**
1882     * A content: URI holding a stream of data associated with the Intent,
1883     * used with {@link #ACTION_SEND} to supply the data being sent.
1884     */
1885    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1886
1887    /**
1888     * A String[] holding e-mail addresses that should be delivered to.
1889     */
1890    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1891
1892    /**
1893     * A String[] holding e-mail addresses that should be carbon copied.
1894     */
1895    public static final String EXTRA_CC       = "android.intent.extra.CC";
1896
1897    /**
1898     * A String[] holding e-mail addresses that should be blind carbon copied.
1899     */
1900    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1901
1902    /**
1903     * A constant string holding the desired subject line of a message.
1904     */
1905    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1906
1907    /**
1908     * An Intent describing the choices you would like shown with
1909     * {@link #ACTION_PICK_ACTIVITY}.
1910     */
1911    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1912
1913    /**
1914     * A CharSequence dialog title to provide to the user when used with a
1915     * {@link #ACTION_CHOOSER}.
1916     */
1917    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1918
1919    /**
1920     * A {@link android.view.KeyEvent} object containing the event that
1921     * triggered the creation of the Intent it is in.
1922     */
1923    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1924
1925    /**
1926     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
1927     * before shutting down.
1928     *
1929     * {@hide}
1930     */
1931    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
1932
1933    /**
1934     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1935     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
1936     * of restarting the application.
1937     */
1938    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
1939
1940    /**
1941     * A String holding the phone number originally entered in
1942     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
1943     * number to call in a {@link android.content.Intent#ACTION_CALL}.
1944     */
1945    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
1946    /**
1947     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
1948     * intents to supply the uid the package had been assigned.  Also an optional
1949     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1950     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
1951     * purpose.
1952     */
1953    public static final String EXTRA_UID = "android.intent.extra.UID";
1954
1955    /**
1956     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1957     * intents to indicate whether this represents a full uninstall (removing
1958     * both the code and its data) or a partial uninstall (leaving its data,
1959     * implying that this is an update).
1960     */
1961    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
1962
1963    /**
1964     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1965     * intents to indicate that this is a replacement of the package, so this
1966     * broadcast will immediately be followed by an add broadcast for a
1967     * different version of the same package.
1968     */
1969    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
1970
1971    /**
1972     * Used as an int extra field in {@link android.app.AlarmManager} intents
1973     * to tell the application being invoked how many pending alarms are being
1974     * delievered with the intent.  For one-shot alarms this will always be 1.
1975     * For recurring alarms, this might be greater than 1 if the device was
1976     * asleep or powered off at the time an earlier alarm would have been
1977     * delivered.
1978     */
1979    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
1980
1981    /**
1982     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
1983     * intents to request the dock state.  Possible values are
1984     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
1985     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
1986     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
1987     * @hide
1988     */
1989    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
1990
1991    /**
1992     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
1993     * to represent that the phone is not in any dock.
1994     * @hide
1995     */
1996    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
1997
1998    /**
1999     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2000     * to represent that the phone is in a desk dock.
2001     * @hide
2002     */
2003    public static final int EXTRA_DOCK_STATE_DESK = 1;
2004
2005    /**
2006     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2007     * to represent that the phone is in a car dock.
2008     * @hide
2009     */
2010    public static final int EXTRA_DOCK_STATE_CAR = 2;
2011
2012    /**
2013     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2014     * the bug report.
2015     *
2016     * @hide
2017     */
2018    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2019
2020    /**
2021     * Used as a string extra field when sending an intent to PackageInstaller to install a
2022     * package. Specifies the installer package name; this package will receive the
2023     * {@link #ACTION_APP_ERROR} intent.
2024     *
2025     * @hide
2026     */
2027    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2028            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2029
2030    /**
2031     * Used in the extra field in the remote intent. It's astring token passed with the
2032     * remote intent.
2033     */
2034    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2035            "android.intent.extra.remote_intent_token";
2036
2037    // ---------------------------------------------------------------------
2038    // ---------------------------------------------------------------------
2039    // Intent flags (see mFlags variable).
2040
2041    /**
2042     * If set, the recipient of this Intent will be granted permission to
2043     * perform read operations on the Uri in the Intent's data.
2044     */
2045    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2046    /**
2047     * If set, the recipient of this Intent will be granted permission to
2048     * perform write operations on the Uri in the Intent's data.
2049     */
2050    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2051    /**
2052     * Can be set by the caller to indicate that this Intent is coming from
2053     * a background operation, not from direct user interaction.
2054     */
2055    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2056    /**
2057     * A flag you can enable for debugging: when set, log messages will be
2058     * printed during the resolution of this intent to show you what has
2059     * been found to create the final resolved list.
2060     */
2061    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2062
2063    /**
2064     * If set, the new activity is not kept in the history stack.  As soon as
2065     * the user navigates away from it, the activity is finished.  This may also
2066     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2067     * noHistory} attribute.
2068     */
2069    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2070    /**
2071     * If set, the activity will not be launched if it is already running
2072     * at the top of the history stack.
2073     */
2074    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2075    /**
2076     * If set, this activity will become the start of a new task on this
2077     * history stack.  A task (from the activity that started it to the
2078     * next task activity) defines an atomic group of activities that the
2079     * user can move to.  Tasks can be moved to the foreground and background;
2080     * all of the activities inside of a particular task always remain in
2081     * the same order.  See
2082     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2083     * Activities and Tasks</a> for more details on tasks.
2084     *
2085     * <p>This flag is generally used by activities that want
2086     * to present a "launcher" style behavior: they give the user a list of
2087     * separate things that can be done, which otherwise run completely
2088     * independently of the activity launching them.
2089     *
2090     * <p>When using this flag, if a task is already running for the activity
2091     * you are now starting, then a new activity will not be started; instead,
2092     * the current task will simply be brought to the front of the screen with
2093     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2094     * to disable this behavior.
2095     *
2096     * <p>This flag can not be used when the caller is requesting a result from
2097     * the activity being launched.
2098     */
2099    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2100    /**
2101     * <strong>Do not use this flag unless you are implementing your own
2102     * top-level application launcher.</strong>  Used in conjunction with
2103     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2104     * behavior of bringing an existing task to the foreground.  When set,
2105     * a new task is <em>always</em> started to host the Activity for the
2106     * Intent, regardless of whether there is already an existing task running
2107     * the same thing.
2108     *
2109     * <p><strong>Because the default system does not include graphical task management,
2110     * you should not use this flag unless you provide some way for a user to
2111     * return back to the tasks you have launched.</strong>
2112     *
2113     * <p>This flag is ignored if
2114     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2115     *
2116     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2117     * Activities and Tasks</a> for more details on tasks.
2118     */
2119    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2120    /**
2121     * If set, and the activity being launched is already running in the
2122     * current task, then instead of launching a new instance of that activity,
2123     * all of the other activities on top of it will be closed and this Intent
2124     * will be delivered to the (now on top) old activity as a new Intent.
2125     *
2126     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2127     * If D calls startActivity() with an Intent that resolves to the component
2128     * of activity B, then C and D will be finished and B receive the given
2129     * Intent, resulting in the stack now being: A, B.
2130     *
2131     * <p>The currently running instance of activity B in the above example will
2132     * either receive the new intent you are starting here in its
2133     * onNewIntent() method, or be itself finished and restarted with the
2134     * new intent.  If it has declared its launch mode to be "multiple" (the
2135     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2136     * the same intent, then it will be finished and re-created; for all other
2137     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2138     * Intent will be delivered to the current instance's onNewIntent().
2139     *
2140     * <p>This launch mode can also be used to good effect in conjunction with
2141     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2142     * of a task, it will bring any currently running instance of that task
2143     * to the foreground, and then clear it to its root state.  This is
2144     * especially useful, for example, when launching an activity from the
2145     * notification manager.
2146     *
2147     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2148     * Activities and Tasks</a> for more details on tasks.
2149     */
2150    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2151    /**
2152     * If set and this intent is being used to launch a new activity from an
2153     * existing one, then the reply target of the existing activity will be
2154     * transfered to the new activity.  This way the new activity can call
2155     * {@link android.app.Activity#setResult} and have that result sent back to
2156     * the reply target of the original activity.
2157     */
2158    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2159    /**
2160     * If set and this intent is being used to launch a new activity from an
2161     * existing one, the current activity will not be counted as the top
2162     * activity for deciding whether the new intent should be delivered to
2163     * the top instead of starting a new one.  The previous activity will
2164     * be used as the top, with the assumption being that the current activity
2165     * will finish itself immediately.
2166     */
2167    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2168    /**
2169     * If set, the new activity is not kept in the list of recently launched
2170     * activities.
2171     */
2172    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2173    /**
2174     * This flag is not normally set by application code, but set for you by
2175     * the system as described in the
2176     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2177     * launchMode} documentation for the singleTask mode.
2178     */
2179    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2180    /**
2181     * If set, and this activity is either being started in a new task or
2182     * bringing to the top an existing task, then it will be launched as
2183     * the front door of the task.  This will result in the application of
2184     * any affinities needed to have that task in the proper state (either
2185     * moving activities to or from it), or simply resetting that task to
2186     * its initial state if needed.
2187     */
2188    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2189    /**
2190     * This flag is not normally set by application code, but set for you by
2191     * the system if this activity is being launched from history
2192     * (longpress home key).
2193     */
2194    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2195    /**
2196     * If set, this marks a point in the task's activity stack that should
2197     * be cleared when the task is reset.  That is, the next time the task
2198     * is brought to the foreground with
2199     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2200     * the user re-launching it from home), this activity and all on top of
2201     * it will be finished so that the user does not return to them, but
2202     * instead returns to whatever activity preceeded it.
2203     *
2204     * <p>This is useful for cases where you have a logical break in your
2205     * application.  For example, an e-mail application may have a command
2206     * to view an attachment, which launches an image view activity to
2207     * display it.  This activity should be part of the e-mail application's
2208     * task, since it is a part of the task the user is involved in.  However,
2209     * if the user leaves that task, and later selects the e-mail app from
2210     * home, we may like them to return to the conversation they were
2211     * viewing, not the picture attachment, since that is confusing.  By
2212     * setting this flag when launching the image viewer, that viewer and
2213     * any activities it starts will be removed the next time the user returns
2214     * to mail.
2215     */
2216    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2217    /**
2218     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2219     * callback from occurring on the current frontmost activity before it is
2220     * paused as the newly-started activity is brought to the front.
2221     *
2222     * <p>Typically, an activity can rely on that callback to indicate that an
2223     * explicit user action has caused their activity to be moved out of the
2224     * foreground. The callback marks an appropriate point in the activity's
2225     * lifecycle for it to dismiss any notifications that it intends to display
2226     * "until the user has seen them," such as a blinking LED.
2227     *
2228     * <p>If an activity is ever started via any non-user-driven events such as
2229     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2230     * Context#startActivity Context.startActivity}, ensuring that the pausing
2231     * activity does not think the user has acknowledged its notification.
2232     */
2233    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2234    /**
2235     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2236     * this flag will cause the launched activity to be brought to the front of its
2237     * task's history stack if it is already running.
2238     *
2239     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2240     * If D calls startActivity() with an Intent that resolves to the component
2241     * of activity B, then B will be brought to the front of the history stack,
2242     * with this resulting order:  A, C, D, B.
2243     *
2244     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2245     * specified.
2246     */
2247    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2248    /**
2249     * If set, when sending a broadcast only registered receivers will be
2250     * called -- no BroadcastReceiver components will be launched.
2251     */
2252    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2253    /**
2254     * If set, when sending a broadcast <i>before boot has completed</i> only
2255     * registered receivers will be called -- no BroadcastReceiver components
2256     * will be launched.  Sticky intent state will be recorded properly even
2257     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2258     * is specified in the broadcast intent, this flag is unnecessary.
2259     *
2260     * <p>This flag is only for use by system sevices as a convenience to
2261     * avoid having to implement a more complex mechanism around detection
2262     * of boot completion.
2263     *
2264     * @hide
2265     */
2266    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2267    /**
2268     * Set when this broadcast is for a boot upgrade, a special mode that
2269     * allows the broadcast to be sent before the system is ready and launches
2270     * the app process with no providers running in it.
2271     * @hide
2272     */
2273    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x10000000;
2274
2275    // ---------------------------------------------------------------------
2276    // ---------------------------------------------------------------------
2277    // toUri() and parseUri() options.
2278
2279    /**
2280     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2281     * always has the "intent:" scheme.  This syntax can be used when you want
2282     * to later disambiguate between URIs that are intended to describe an
2283     * Intent vs. all others that should be treated as raw URIs.  When used
2284     * with {@link #parseUri}, any other scheme will result in a generic
2285     * VIEW action for that raw URI.
2286     */
2287    public static final int URI_INTENT_SCHEME = 1<<0;
2288
2289    // ---------------------------------------------------------------------
2290
2291    private String mAction;
2292    private Uri mData;
2293    private String mType;
2294    private String mPackage;
2295    private ComponentName mComponent;
2296    private int mFlags;
2297    private HashSet<String> mCategories;
2298    private Bundle mExtras;
2299
2300    // ---------------------------------------------------------------------
2301
2302    /**
2303     * Create an empty intent.
2304     */
2305    public Intent() {
2306    }
2307
2308    /**
2309     * Copy constructor.
2310     */
2311    public Intent(Intent o) {
2312        this.mAction = o.mAction;
2313        this.mData = o.mData;
2314        this.mType = o.mType;
2315        this.mPackage = o.mPackage;
2316        this.mComponent = o.mComponent;
2317        this.mFlags = o.mFlags;
2318        if (o.mCategories != null) {
2319            this.mCategories = new HashSet<String>(o.mCategories);
2320        }
2321        if (o.mExtras != null) {
2322            this.mExtras = new Bundle(o.mExtras);
2323        }
2324    }
2325
2326    @Override
2327    public Object clone() {
2328        return new Intent(this);
2329    }
2330
2331    private Intent(Intent o, boolean all) {
2332        this.mAction = o.mAction;
2333        this.mData = o.mData;
2334        this.mType = o.mType;
2335        this.mPackage = o.mPackage;
2336        this.mComponent = o.mComponent;
2337        if (o.mCategories != null) {
2338            this.mCategories = new HashSet<String>(o.mCategories);
2339        }
2340    }
2341
2342    /**
2343     * Make a clone of only the parts of the Intent that are relevant for
2344     * filter matching: the action, data, type, component, and categories.
2345     */
2346    public Intent cloneFilter() {
2347        return new Intent(this, false);
2348    }
2349
2350    /**
2351     * Create an intent with a given action.  All other fields (data, type,
2352     * class) are null.  Note that the action <em>must</em> be in a
2353     * namespace because Intents are used globally in the system -- for
2354     * example the system VIEW action is android.intent.action.VIEW; an
2355     * application's custom action would be something like
2356     * com.google.app.myapp.CUSTOM_ACTION.
2357     *
2358     * @param action The Intent action, such as ACTION_VIEW.
2359     */
2360    public Intent(String action) {
2361        mAction = action;
2362    }
2363
2364    /**
2365     * Create an intent with a given action and for a given data url.  Note
2366     * that the action <em>must</em> be in a namespace because Intents are
2367     * used globally in the system -- for example the system VIEW action is
2368     * android.intent.action.VIEW; an application's custom action would be
2369     * something like com.google.app.myapp.CUSTOM_ACTION.
2370     *
2371     * <p><em>Note: scheme and host name matching in the Android framework is
2372     * case-sensitive, unlike the formal RFC.  As a result,
2373     * you should always ensure that you write your Uri with these elements
2374     * using lower case letters, and normalize any Uris you receive from
2375     * outside of Android to ensure the scheme and host is lower case.</em></p>
2376     *
2377     * @param action The Intent action, such as ACTION_VIEW.
2378     * @param uri The Intent data URI.
2379     */
2380    public Intent(String action, Uri uri) {
2381        mAction = action;
2382        mData = uri;
2383    }
2384
2385    /**
2386     * Create an intent for a specific component.  All other fields (action, data,
2387     * type, class) are null, though they can be modified later with explicit
2388     * calls.  This provides a convenient way to create an intent that is
2389     * intended to execute a hard-coded class name, rather than relying on the
2390     * system to find an appropriate class for you; see {@link #setComponent}
2391     * for more information on the repercussions of this.
2392     *
2393     * @param packageContext A Context of the application package implementing
2394     * this class.
2395     * @param cls The component class that is to be used for the intent.
2396     *
2397     * @see #setClass
2398     * @see #setComponent
2399     * @see #Intent(String, android.net.Uri , Context, Class)
2400     */
2401    public Intent(Context packageContext, Class<?> cls) {
2402        mComponent = new ComponentName(packageContext, cls);
2403    }
2404
2405    /**
2406     * Create an intent for a specific component with a specified action and data.
2407     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2408     * construct the Intent and then calling {@link #setClass} to set its
2409     * class.
2410     *
2411     * <p><em>Note: scheme and host name matching in the Android framework is
2412     * case-sensitive, unlike the formal RFC.  As a result,
2413     * you should always ensure that you write your Uri with these elements
2414     * using lower case letters, and normalize any Uris you receive from
2415     * outside of Android to ensure the scheme and host is lower case.</em></p>
2416     *
2417     * @param action The Intent action, such as ACTION_VIEW.
2418     * @param uri The Intent data URI.
2419     * @param packageContext A Context of the application package implementing
2420     * this class.
2421     * @param cls The component class that is to be used for the intent.
2422     *
2423     * @see #Intent(String, android.net.Uri)
2424     * @see #Intent(Context, Class)
2425     * @see #setClass
2426     * @see #setComponent
2427     */
2428    public Intent(String action, Uri uri,
2429            Context packageContext, Class<?> cls) {
2430        mAction = action;
2431        mData = uri;
2432        mComponent = new ComponentName(packageContext, cls);
2433    }
2434
2435    /**
2436     * Call {@link #parseUri} with 0 flags.
2437     * @deprecated Use {@link #parseUri} instead.
2438     */
2439    @Deprecated
2440    public static Intent getIntent(String uri) throws URISyntaxException {
2441        return parseUri(uri, 0);
2442    }
2443
2444    /**
2445     * Create an intent from a URI.  This URI may encode the action,
2446     * category, and other intent fields, if it was returned by
2447     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2448     * will be the entire URI and its action will be ACTION_VIEW.
2449     *
2450     * <p>The URI given here must not be relative -- that is, it must include
2451     * the scheme and full path.
2452     *
2453     * @param uri The URI to turn into an Intent.
2454     * @param flags Additional processing flags.  Either 0 or
2455     *
2456     * @return Intent The newly created Intent object.
2457     *
2458     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2459     * it bad (as parsed by the Uri class) or the Intent data within the
2460     * URI is invalid.
2461     *
2462     * @see #toUri
2463     */
2464    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2465        int i = 0;
2466        try {
2467            // Validate intent scheme for if requested.
2468            if ((flags&URI_INTENT_SCHEME) != 0) {
2469                if (!uri.startsWith("intent:")) {
2470                    Intent intent = new Intent(ACTION_VIEW);
2471                    try {
2472                        intent.setData(Uri.parse(uri));
2473                    } catch (IllegalArgumentException e) {
2474                        throw new URISyntaxException(uri, e.getMessage());
2475                    }
2476                    return intent;
2477                }
2478            }
2479
2480            // simple case
2481            i = uri.lastIndexOf("#");
2482            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2483
2484            // old format Intent URI
2485            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2486
2487            // new format
2488            Intent intent = new Intent(ACTION_VIEW);
2489
2490            // fetch data part, if present
2491            String data = i >= 0 ? uri.substring(0, i) : null;
2492            String scheme = null;
2493            i += "#Intent;".length();
2494
2495            // loop over contents of Intent, all name=value;
2496            while (!uri.startsWith("end", i)) {
2497                int eq = uri.indexOf('=', i);
2498                int semi = uri.indexOf(';', eq);
2499                String value = Uri.decode(uri.substring(eq + 1, semi));
2500
2501                // action
2502                if (uri.startsWith("action=", i)) {
2503                    intent.mAction = value;
2504                }
2505
2506                // categories
2507                else if (uri.startsWith("category=", i)) {
2508                    intent.addCategory(value);
2509                }
2510
2511                // type
2512                else if (uri.startsWith("type=", i)) {
2513                    intent.mType = value;
2514                }
2515
2516                // launch  flags
2517                else if (uri.startsWith("launchFlags=", i)) {
2518                    intent.mFlags = Integer.decode(value).intValue();
2519                }
2520
2521                // package
2522                else if (uri.startsWith("package=", i)) {
2523                    intent.mPackage = value;
2524                }
2525
2526                // component
2527                else if (uri.startsWith("component=", i)) {
2528                    intent.mComponent = ComponentName.unflattenFromString(value);
2529                }
2530
2531                // scheme
2532                else if (uri.startsWith("scheme=", i)) {
2533                    scheme = value;
2534                }
2535
2536                // extra
2537                else {
2538                    String key = Uri.decode(uri.substring(i + 2, eq));
2539                    // create Bundle if it doesn't already exist
2540                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2541                    Bundle b = intent.mExtras;
2542                    // add EXTRA
2543                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2544                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2545                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2546                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2547                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2548                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2549                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2550                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2551                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2552                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2553                }
2554
2555                // move to the next item
2556                i = semi + 1;
2557            }
2558
2559            if (data != null) {
2560                if (data.startsWith("intent:")) {
2561                    data = data.substring(7);
2562                    if (scheme != null) {
2563                        data = scheme + ':' + data;
2564                    }
2565                }
2566
2567                if (data.length() > 0) {
2568                    try {
2569                        intent.mData = Uri.parse(data);
2570                    } catch (IllegalArgumentException e) {
2571                        throw new URISyntaxException(uri, e.getMessage());
2572                    }
2573                }
2574            }
2575
2576            return intent;
2577
2578        } catch (IndexOutOfBoundsException e) {
2579            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2580        }
2581    }
2582
2583    public static Intent getIntentOld(String uri) throws URISyntaxException {
2584        Intent intent;
2585
2586        int i = uri.lastIndexOf('#');
2587        if (i >= 0) {
2588            Uri data = null;
2589            String action = null;
2590            if (i > 0) {
2591                data = Uri.parse(uri.substring(0, i));
2592            }
2593
2594            i++;
2595
2596            if (uri.regionMatches(i, "action(", 0, 7)) {
2597                i += 7;
2598                int j = uri.indexOf(')', i);
2599                action = uri.substring(i, j);
2600                i = j + 1;
2601            }
2602
2603            intent = new Intent(action, data);
2604
2605            if (uri.regionMatches(i, "categories(", 0, 11)) {
2606                i += 11;
2607                int j = uri.indexOf(')', i);
2608                while (i < j) {
2609                    int sep = uri.indexOf('!', i);
2610                    if (sep < 0) sep = j;
2611                    if (i < sep) {
2612                        intent.addCategory(uri.substring(i, sep));
2613                    }
2614                    i = sep + 1;
2615                }
2616                i = j + 1;
2617            }
2618
2619            if (uri.regionMatches(i, "type(", 0, 5)) {
2620                i += 5;
2621                int j = uri.indexOf(')', i);
2622                intent.mType = uri.substring(i, j);
2623                i = j + 1;
2624            }
2625
2626            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2627                i += 12;
2628                int j = uri.indexOf(')', i);
2629                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2630                i = j + 1;
2631            }
2632
2633            if (uri.regionMatches(i, "component(", 0, 10)) {
2634                i += 10;
2635                int j = uri.indexOf(')', i);
2636                int sep = uri.indexOf('!', i);
2637                if (sep >= 0 && sep < j) {
2638                    String pkg = uri.substring(i, sep);
2639                    String cls = uri.substring(sep + 1, j);
2640                    intent.mComponent = new ComponentName(pkg, cls);
2641                }
2642                i = j + 1;
2643            }
2644
2645            if (uri.regionMatches(i, "extras(", 0, 7)) {
2646                i += 7;
2647
2648                final int closeParen = uri.indexOf(')', i);
2649                if (closeParen == -1) throw new URISyntaxException(uri,
2650                        "EXTRA missing trailing ')'", i);
2651
2652                while (i < closeParen) {
2653                    // fetch the key value
2654                    int j = uri.indexOf('=', i);
2655                    if (j <= i + 1 || i >= closeParen) {
2656                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2657                    }
2658                    char type = uri.charAt(i);
2659                    i++;
2660                    String key = uri.substring(i, j);
2661                    i = j + 1;
2662
2663                    // get type-value
2664                    j = uri.indexOf('!', i);
2665                    if (j == -1 || j >= closeParen) j = closeParen;
2666                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2667                    String value = uri.substring(i, j);
2668                    i = j;
2669
2670                    // create Bundle if it doesn't already exist
2671                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2672
2673                    // add item to bundle
2674                    try {
2675                        switch (type) {
2676                            case 'S':
2677                                intent.mExtras.putString(key, Uri.decode(value));
2678                                break;
2679                            case 'B':
2680                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2681                                break;
2682                            case 'b':
2683                                intent.mExtras.putByte(key, Byte.parseByte(value));
2684                                break;
2685                            case 'c':
2686                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2687                                break;
2688                            case 'd':
2689                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2690                                break;
2691                            case 'f':
2692                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2693                                break;
2694                            case 'i':
2695                                intent.mExtras.putInt(key, Integer.parseInt(value));
2696                                break;
2697                            case 'l':
2698                                intent.mExtras.putLong(key, Long.parseLong(value));
2699                                break;
2700                            case 's':
2701                                intent.mExtras.putShort(key, Short.parseShort(value));
2702                                break;
2703                            default:
2704                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2705                        }
2706                    } catch (NumberFormatException e) {
2707                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2708                    }
2709
2710                    char ch = uri.charAt(i);
2711                    if (ch == ')') break;
2712                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2713                    i++;
2714                }
2715            }
2716
2717            if (intent.mAction == null) {
2718                // By default, if no action is specified, then use VIEW.
2719                intent.mAction = ACTION_VIEW;
2720            }
2721
2722        } else {
2723            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2724        }
2725
2726        return intent;
2727    }
2728
2729    /**
2730     * Retrieve the general action to be performed, such as
2731     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2732     * the information in the intent should be interpreted -- most importantly,
2733     * what to do with the data returned by {@link #getData}.
2734     *
2735     * @return The action of this intent or null if none is specified.
2736     *
2737     * @see #setAction
2738     */
2739    public String getAction() {
2740        return mAction;
2741    }
2742
2743    /**
2744     * Retrieve data this intent is operating on.  This URI specifies the name
2745     * of the data; often it uses the content: scheme, specifying data in a
2746     * content provider.  Other schemes may be handled by specific activities,
2747     * such as http: by the web browser.
2748     *
2749     * @return The URI of the data this intent is targeting or null.
2750     *
2751     * @see #getScheme
2752     * @see #setData
2753     */
2754    public Uri getData() {
2755        return mData;
2756    }
2757
2758    /**
2759     * The same as {@link #getData()}, but returns the URI as an encoded
2760     * String.
2761     */
2762    public String getDataString() {
2763        return mData != null ? mData.toString() : null;
2764    }
2765
2766    /**
2767     * Return the scheme portion of the intent's data.  If the data is null or
2768     * does not include a scheme, null is returned.  Otherwise, the scheme
2769     * prefix without the final ':' is returned, i.e. "http".
2770     *
2771     * <p>This is the same as calling getData().getScheme() (and checking for
2772     * null data).
2773     *
2774     * @return The scheme of this intent.
2775     *
2776     * @see #getData
2777     */
2778    public String getScheme() {
2779        return mData != null ? mData.getScheme() : null;
2780    }
2781
2782    /**
2783     * Retrieve any explicit MIME type included in the intent.  This is usually
2784     * null, as the type is determined by the intent data.
2785     *
2786     * @return If a type was manually set, it is returned; else null is
2787     *         returned.
2788     *
2789     * @see #resolveType(ContentResolver)
2790     * @see #setType
2791     */
2792    public String getType() {
2793        return mType;
2794    }
2795
2796    /**
2797     * Return the MIME data type of this intent.  If the type field is
2798     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2799     * the type of that data is returned.  If neither fields are set, a null is
2800     * returned.
2801     *
2802     * @return The MIME type of this intent.
2803     *
2804     * @see #getType
2805     * @see #resolveType(ContentResolver)
2806     */
2807    public String resolveType(Context context) {
2808        return resolveType(context.getContentResolver());
2809    }
2810
2811    /**
2812     * Return the MIME data type of this intent.  If the type field is
2813     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2814     * the type of that data is returned.  If neither fields are set, a null is
2815     * returned.
2816     *
2817     * @param resolver A ContentResolver that can be used to determine the MIME
2818     *                 type of the intent's data.
2819     *
2820     * @return The MIME type of this intent.
2821     *
2822     * @see #getType
2823     * @see #resolveType(Context)
2824     */
2825    public String resolveType(ContentResolver resolver) {
2826        if (mType != null) {
2827            return mType;
2828        }
2829        if (mData != null) {
2830            if ("content".equals(mData.getScheme())) {
2831                return resolver.getType(mData);
2832            }
2833        }
2834        return null;
2835    }
2836
2837    /**
2838     * Return the MIME data type of this intent, only if it will be needed for
2839     * intent resolution.  This is not generally useful for application code;
2840     * it is used by the frameworks for communicating with back-end system
2841     * services.
2842     *
2843     * @param resolver A ContentResolver that can be used to determine the MIME
2844     *                 type of the intent's data.
2845     *
2846     * @return The MIME type of this intent, or null if it is unknown or not
2847     *         needed.
2848     */
2849    public String resolveTypeIfNeeded(ContentResolver resolver) {
2850        if (mComponent != null) {
2851            return mType;
2852        }
2853        return resolveType(resolver);
2854    }
2855
2856    /**
2857     * Check if an category exists in the intent.
2858     *
2859     * @param category The category to check.
2860     *
2861     * @return boolean True if the intent contains the category, else false.
2862     *
2863     * @see #getCategories
2864     * @see #addCategory
2865     */
2866    public boolean hasCategory(String category) {
2867        return mCategories != null && mCategories.contains(category);
2868    }
2869
2870    /**
2871     * Return the set of all categories in the intent.  If there are no categories,
2872     * returns NULL.
2873     *
2874     * @return Set The set of categories you can examine.  Do not modify!
2875     *
2876     * @see #hasCategory
2877     * @see #addCategory
2878     */
2879    public Set<String> getCategories() {
2880        return mCategories;
2881    }
2882
2883    /**
2884     * Sets the ClassLoader that will be used when unmarshalling
2885     * any Parcelable values from the extras of this Intent.
2886     *
2887     * @param loader a ClassLoader, or null to use the default loader
2888     * at the time of unmarshalling.
2889     */
2890    public void setExtrasClassLoader(ClassLoader loader) {
2891        if (mExtras != null) {
2892            mExtras.setClassLoader(loader);
2893        }
2894    }
2895
2896    /**
2897     * Returns true if an extra value is associated with the given name.
2898     * @param name the extra's name
2899     * @return true if the given extra is present.
2900     */
2901    public boolean hasExtra(String name) {
2902        return mExtras != null && mExtras.containsKey(name);
2903    }
2904
2905    /**
2906     * Returns true if the Intent's extras contain a parcelled file descriptor.
2907     * @return true if the Intent contains a parcelled file descriptor.
2908     */
2909    public boolean hasFileDescriptors() {
2910        return mExtras != null && mExtras.hasFileDescriptors();
2911    }
2912
2913    /**
2914     * Retrieve extended data from the intent.
2915     *
2916     * @param name The name of the desired item.
2917     *
2918     * @return the value of an item that previously added with putExtra()
2919     * or null if none was found.
2920     *
2921     * @deprecated
2922     * @hide
2923     */
2924    @Deprecated
2925    public Object getExtra(String name) {
2926        return getExtra(name, null);
2927    }
2928
2929    /**
2930     * Retrieve extended data from the intent.
2931     *
2932     * @param name The name of the desired item.
2933     * @param defaultValue the value to be returned if no value of the desired
2934     * type is stored with the given name.
2935     *
2936     * @return the value of an item that previously added with putExtra()
2937     * or the default value if none was found.
2938     *
2939     * @see #putExtra(String, boolean)
2940     */
2941    public boolean getBooleanExtra(String name, boolean defaultValue) {
2942        return mExtras == null ? defaultValue :
2943            mExtras.getBoolean(name, defaultValue);
2944    }
2945
2946    /**
2947     * Retrieve extended data from the intent.
2948     *
2949     * @param name The name of the desired item.
2950     * @param defaultValue the value to be returned if no value of the desired
2951     * type is stored with the given name.
2952     *
2953     * @return the value of an item that previously added with putExtra()
2954     * or the default value if none was found.
2955     *
2956     * @see #putExtra(String, byte)
2957     */
2958    public byte getByteExtra(String name, byte defaultValue) {
2959        return mExtras == null ? defaultValue :
2960            mExtras.getByte(name, defaultValue);
2961    }
2962
2963    /**
2964     * Retrieve extended data from the intent.
2965     *
2966     * @param name The name of the desired item.
2967     * @param defaultValue the value to be returned if no value of the desired
2968     * type is stored with the given name.
2969     *
2970     * @return the value of an item that previously added with putExtra()
2971     * or the default value if none was found.
2972     *
2973     * @see #putExtra(String, short)
2974     */
2975    public short getShortExtra(String name, short defaultValue) {
2976        return mExtras == null ? defaultValue :
2977            mExtras.getShort(name, defaultValue);
2978    }
2979
2980    /**
2981     * Retrieve extended data from the intent.
2982     *
2983     * @param name The name of the desired item.
2984     * @param defaultValue the value to be returned if no value of the desired
2985     * type is stored with the given name.
2986     *
2987     * @return the value of an item that previously added with putExtra()
2988     * or the default value if none was found.
2989     *
2990     * @see #putExtra(String, char)
2991     */
2992    public char getCharExtra(String name, char defaultValue) {
2993        return mExtras == null ? defaultValue :
2994            mExtras.getChar(name, defaultValue);
2995    }
2996
2997    /**
2998     * Retrieve extended data from the intent.
2999     *
3000     * @param name The name of the desired item.
3001     * @param defaultValue the value to be returned if no value of the desired
3002     * type is stored with the given name.
3003     *
3004     * @return the value of an item that previously added with putExtra()
3005     * or the default value if none was found.
3006     *
3007     * @see #putExtra(String, int)
3008     */
3009    public int getIntExtra(String name, int defaultValue) {
3010        return mExtras == null ? defaultValue :
3011            mExtras.getInt(name, defaultValue);
3012    }
3013
3014    /**
3015     * Retrieve extended data from the intent.
3016     *
3017     * @param name The name of the desired item.
3018     * @param defaultValue the value to be returned if no value of the desired
3019     * type is stored with the given name.
3020     *
3021     * @return the value of an item that previously added with putExtra()
3022     * or the default value if none was found.
3023     *
3024     * @see #putExtra(String, long)
3025     */
3026    public long getLongExtra(String name, long defaultValue) {
3027        return mExtras == null ? defaultValue :
3028            mExtras.getLong(name, defaultValue);
3029    }
3030
3031    /**
3032     * Retrieve extended data from the intent.
3033     *
3034     * @param name The name of the desired item.
3035     * @param defaultValue the value to be returned if no value of the desired
3036     * type is stored with the given name.
3037     *
3038     * @return the value of an item that previously added with putExtra(),
3039     * or the default value if no such item is present
3040     *
3041     * @see #putExtra(String, float)
3042     */
3043    public float getFloatExtra(String name, float defaultValue) {
3044        return mExtras == null ? defaultValue :
3045            mExtras.getFloat(name, defaultValue);
3046    }
3047
3048    /**
3049     * Retrieve extended data from the intent.
3050     *
3051     * @param name The name of the desired item.
3052     * @param defaultValue the value to be returned if no value of the desired
3053     * type is stored with the given name.
3054     *
3055     * @return the value of an item that previously added with putExtra()
3056     * or the default value if none was found.
3057     *
3058     * @see #putExtra(String, double)
3059     */
3060    public double getDoubleExtra(String name, double defaultValue) {
3061        return mExtras == null ? defaultValue :
3062            mExtras.getDouble(name, defaultValue);
3063    }
3064
3065    /**
3066     * Retrieve extended data from the intent.
3067     *
3068     * @param name The name of the desired item.
3069     *
3070     * @return the value of an item that previously added with putExtra()
3071     * or null if no String value was found.
3072     *
3073     * @see #putExtra(String, String)
3074     */
3075    public String getStringExtra(String name) {
3076        return mExtras == null ? null : mExtras.getString(name);
3077    }
3078
3079    /**
3080     * Retrieve extended data from the intent.
3081     *
3082     * @param name The name of the desired item.
3083     *
3084     * @return the value of an item that previously added with putExtra()
3085     * or null if no CharSequence value was found.
3086     *
3087     * @see #putExtra(String, CharSequence)
3088     */
3089    public CharSequence getCharSequenceExtra(String name) {
3090        return mExtras == null ? null : mExtras.getCharSequence(name);
3091    }
3092
3093    /**
3094     * Retrieve extended data from the intent.
3095     *
3096     * @param name The name of the desired item.
3097     *
3098     * @return the value of an item that previously added with putExtra()
3099     * or null if no Parcelable value was found.
3100     *
3101     * @see #putExtra(String, Parcelable)
3102     */
3103    public <T extends Parcelable> T getParcelableExtra(String name) {
3104        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3105    }
3106
3107    /**
3108     * Retrieve extended data from the intent.
3109     *
3110     * @param name The name of the desired item.
3111     *
3112     * @return the value of an item that previously added with putExtra()
3113     * or null if no Parcelable[] value was found.
3114     *
3115     * @see #putExtra(String, Parcelable[])
3116     */
3117    public Parcelable[] getParcelableArrayExtra(String name) {
3118        return mExtras == null ? null : mExtras.getParcelableArray(name);
3119    }
3120
3121    /**
3122     * Retrieve extended data from the intent.
3123     *
3124     * @param name The name of the desired item.
3125     *
3126     * @return the value of an item that previously added with putExtra()
3127     * or null if no ArrayList<Parcelable> value was found.
3128     *
3129     * @see #putParcelableArrayListExtra(String, ArrayList)
3130     */
3131    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3132        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3133    }
3134
3135    /**
3136     * Retrieve extended data from the intent.
3137     *
3138     * @param name The name of the desired item.
3139     *
3140     * @return the value of an item that previously added with putExtra()
3141     * or null if no Serializable value was found.
3142     *
3143     * @see #putExtra(String, Serializable)
3144     */
3145    public Serializable getSerializableExtra(String name) {
3146        return mExtras == null ? null : mExtras.getSerializable(name);
3147    }
3148
3149    /**
3150     * Retrieve extended data from the intent.
3151     *
3152     * @param name The name of the desired item.
3153     *
3154     * @return the value of an item that previously added with putExtra()
3155     * or null if no ArrayList<Integer> value was found.
3156     *
3157     * @see #putIntegerArrayListExtra(String, ArrayList)
3158     */
3159    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3160        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3161    }
3162
3163    /**
3164     * Retrieve extended data from the intent.
3165     *
3166     * @param name The name of the desired item.
3167     *
3168     * @return the value of an item that previously added with putExtra()
3169     * or null if no ArrayList<String> value was found.
3170     *
3171     * @see #putStringArrayListExtra(String, ArrayList)
3172     */
3173    public ArrayList<String> getStringArrayListExtra(String name) {
3174        return mExtras == null ? null : mExtras.getStringArrayList(name);
3175    }
3176
3177    /**
3178     * Retrieve extended data from the intent.
3179     *
3180     * @param name The name of the desired item.
3181     *
3182     * @return the value of an item that previously added with putExtra()
3183     * or null if no boolean array value was found.
3184     *
3185     * @see #putExtra(String, boolean[])
3186     */
3187    public boolean[] getBooleanArrayExtra(String name) {
3188        return mExtras == null ? null : mExtras.getBooleanArray(name);
3189    }
3190
3191    /**
3192     * Retrieve extended data from the intent.
3193     *
3194     * @param name The name of the desired item.
3195     *
3196     * @return the value of an item that previously added with putExtra()
3197     * or null if no byte array value was found.
3198     *
3199     * @see #putExtra(String, byte[])
3200     */
3201    public byte[] getByteArrayExtra(String name) {
3202        return mExtras == null ? null : mExtras.getByteArray(name);
3203    }
3204
3205    /**
3206     * Retrieve extended data from the intent.
3207     *
3208     * @param name The name of the desired item.
3209     *
3210     * @return the value of an item that previously added with putExtra()
3211     * or null if no short array value was found.
3212     *
3213     * @see #putExtra(String, short[])
3214     */
3215    public short[] getShortArrayExtra(String name) {
3216        return mExtras == null ? null : mExtras.getShortArray(name);
3217    }
3218
3219    /**
3220     * Retrieve extended data from the intent.
3221     *
3222     * @param name The name of the desired item.
3223     *
3224     * @return the value of an item that previously added with putExtra()
3225     * or null if no char array value was found.
3226     *
3227     * @see #putExtra(String, char[])
3228     */
3229    public char[] getCharArrayExtra(String name) {
3230        return mExtras == null ? null : mExtras.getCharArray(name);
3231    }
3232
3233    /**
3234     * Retrieve extended data from the intent.
3235     *
3236     * @param name The name of the desired item.
3237     *
3238     * @return the value of an item that previously added with putExtra()
3239     * or null if no int array value was found.
3240     *
3241     * @see #putExtra(String, int[])
3242     */
3243    public int[] getIntArrayExtra(String name) {
3244        return mExtras == null ? null : mExtras.getIntArray(name);
3245    }
3246
3247    /**
3248     * Retrieve extended data from the intent.
3249     *
3250     * @param name The name of the desired item.
3251     *
3252     * @return the value of an item that previously added with putExtra()
3253     * or null if no long array value was found.
3254     *
3255     * @see #putExtra(String, long[])
3256     */
3257    public long[] getLongArrayExtra(String name) {
3258        return mExtras == null ? null : mExtras.getLongArray(name);
3259    }
3260
3261    /**
3262     * Retrieve extended data from the intent.
3263     *
3264     * @param name The name of the desired item.
3265     *
3266     * @return the value of an item that previously added with putExtra()
3267     * or null if no float array value was found.
3268     *
3269     * @see #putExtra(String, float[])
3270     */
3271    public float[] getFloatArrayExtra(String name) {
3272        return mExtras == null ? null : mExtras.getFloatArray(name);
3273    }
3274
3275    /**
3276     * Retrieve extended data from the intent.
3277     *
3278     * @param name The name of the desired item.
3279     *
3280     * @return the value of an item that previously added with putExtra()
3281     * or null if no double array value was found.
3282     *
3283     * @see #putExtra(String, double[])
3284     */
3285    public double[] getDoubleArrayExtra(String name) {
3286        return mExtras == null ? null : mExtras.getDoubleArray(name);
3287    }
3288
3289    /**
3290     * Retrieve extended data from the intent.
3291     *
3292     * @param name The name of the desired item.
3293     *
3294     * @return the value of an item that previously added with putExtra()
3295     * or null if no String array value was found.
3296     *
3297     * @see #putExtra(String, String[])
3298     */
3299    public String[] getStringArrayExtra(String name) {
3300        return mExtras == null ? null : mExtras.getStringArray(name);
3301    }
3302
3303    /**
3304     * Retrieve extended data from the intent.
3305     *
3306     * @param name The name of the desired item.
3307     *
3308     * @return the value of an item that previously added with putExtra()
3309     * or null if no Bundle value was found.
3310     *
3311     * @see #putExtra(String, Bundle)
3312     */
3313    public Bundle getBundleExtra(String name) {
3314        return mExtras == null ? null : mExtras.getBundle(name);
3315    }
3316
3317    /**
3318     * Retrieve extended data from the intent.
3319     *
3320     * @param name The name of the desired item.
3321     *
3322     * @return the value of an item that previously added with putExtra()
3323     * or null if no IBinder value was found.
3324     *
3325     * @see #putExtra(String, IBinder)
3326     *
3327     * @deprecated
3328     * @hide
3329     */
3330    @Deprecated
3331    public IBinder getIBinderExtra(String name) {
3332        return mExtras == null ? null : mExtras.getIBinder(name);
3333    }
3334
3335    /**
3336     * Retrieve extended data from the intent.
3337     *
3338     * @param name The name of the desired item.
3339     * @param defaultValue The default value to return in case no item is
3340     * associated with the key 'name'
3341     *
3342     * @return the value of an item that previously added with putExtra()
3343     * or defaultValue if none was found.
3344     *
3345     * @see #putExtra
3346     *
3347     * @deprecated
3348     * @hide
3349     */
3350    @Deprecated
3351    public Object getExtra(String name, Object defaultValue) {
3352        Object result = defaultValue;
3353        if (mExtras != null) {
3354            Object result2 = mExtras.get(name);
3355            if (result2 != null) {
3356                result = result2;
3357            }
3358        }
3359
3360        return result;
3361    }
3362
3363    /**
3364     * Retrieves a map of extended data from the intent.
3365     *
3366     * @return the map of all extras previously added with putExtra(),
3367     * or null if none have been added.
3368     */
3369    public Bundle getExtras() {
3370        return (mExtras != null)
3371                ? new Bundle(mExtras)
3372                : null;
3373    }
3374
3375    /**
3376     * Retrieve any special flags associated with this intent.  You will
3377     * normally just set them with {@link #setFlags} and let the system
3378     * take the appropriate action with them.
3379     *
3380     * @return int The currently set flags.
3381     *
3382     * @see #setFlags
3383     */
3384    public int getFlags() {
3385        return mFlags;
3386    }
3387
3388    /**
3389     * Retrieve the application package name this Intent is limited to.  When
3390     * resolving an Intent, if non-null this limits the resolution to only
3391     * components in the given application package.
3392     *
3393     * @return The name of the application package for the Intent.
3394     *
3395     * @see #resolveActivity
3396     * @see #setPackage
3397     */
3398    public String getPackage() {
3399        return mPackage;
3400    }
3401
3402    /**
3403     * Retrieve the concrete component associated with the intent.  When receiving
3404     * an intent, this is the component that was found to best handle it (that is,
3405     * yourself) and will always be non-null; in all other cases it will be
3406     * null unless explicitly set.
3407     *
3408     * @return The name of the application component to handle the intent.
3409     *
3410     * @see #resolveActivity
3411     * @see #setComponent
3412     */
3413    public ComponentName getComponent() {
3414        return mComponent;
3415    }
3416
3417    /**
3418     * Return the Activity component that should be used to handle this intent.
3419     * The appropriate component is determined based on the information in the
3420     * intent, evaluated as follows:
3421     *
3422     * <p>If {@link #getComponent} returns an explicit class, that is returned
3423     * without any further consideration.
3424     *
3425     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3426     * category to be considered.
3427     *
3428     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3429     * action.
3430     *
3431     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3432     * this type.
3433     *
3434     * <p>If {@link #addCategory} has added any categories, the activity must
3435     * handle ALL of the categories specified.
3436     *
3437     * <p>If {@link #getPackage} is non-NULL, only activity components in
3438     * that application package will be considered.
3439     *
3440     * <p>If there are no activities that satisfy all of these conditions, a
3441     * null string is returned.
3442     *
3443     * <p>If multiple activities are found to satisfy the intent, the one with
3444     * the highest priority will be used.  If there are multiple activities
3445     * with the same priority, the system will either pick the best activity
3446     * based on user preference, or resolve to a system class that will allow
3447     * the user to pick an activity and forward from there.
3448     *
3449     * <p>This method is implemented simply by calling
3450     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3451     * true.</p>
3452     * <p> This API is called for you as part of starting an activity from an
3453     * intent.  You do not normally need to call it yourself.</p>
3454     *
3455     * @param pm The package manager with which to resolve the Intent.
3456     *
3457     * @return Name of the component implementing an activity that can
3458     *         display the intent.
3459     *
3460     * @see #setComponent
3461     * @see #getComponent
3462     * @see #resolveActivityInfo
3463     */
3464    public ComponentName resolveActivity(PackageManager pm) {
3465        if (mComponent != null) {
3466            return mComponent;
3467        }
3468
3469        ResolveInfo info = pm.resolveActivity(
3470            this, PackageManager.MATCH_DEFAULT_ONLY);
3471        if (info != null) {
3472            return new ComponentName(
3473                    info.activityInfo.applicationInfo.packageName,
3474                    info.activityInfo.name);
3475        }
3476
3477        return null;
3478    }
3479
3480    /**
3481     * Resolve the Intent into an {@link ActivityInfo}
3482     * describing the activity that should execute the intent.  Resolution
3483     * follows the same rules as described for {@link #resolveActivity}, but
3484     * you get back the completely information about the resolved activity
3485     * instead of just its class name.
3486     *
3487     * @param pm The package manager with which to resolve the Intent.
3488     * @param flags Addition information to retrieve as per
3489     * {@link PackageManager#getActivityInfo(ComponentName, int)
3490     * PackageManager.getActivityInfo()}.
3491     *
3492     * @return PackageManager.ActivityInfo
3493     *
3494     * @see #resolveActivity
3495     */
3496    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3497        ActivityInfo ai = null;
3498        if (mComponent != null) {
3499            try {
3500                ai = pm.getActivityInfo(mComponent, flags);
3501            } catch (PackageManager.NameNotFoundException e) {
3502                // ignore
3503            }
3504        } else {
3505            ResolveInfo info = pm.resolveActivity(
3506                this, PackageManager.MATCH_DEFAULT_ONLY);
3507            if (info != null) {
3508                ai = info.activityInfo;
3509            }
3510        }
3511
3512        return ai;
3513    }
3514
3515    /**
3516     * Set the general action to be performed.
3517     *
3518     * @param action An action name, such as ACTION_VIEW.  Application-specific
3519     *               actions should be prefixed with the vendor's package name.
3520     *
3521     * @return Returns the same Intent object, for chaining multiple calls
3522     * into a single statement.
3523     *
3524     * @see #getAction
3525     */
3526    public Intent setAction(String action) {
3527        mAction = action;
3528        return this;
3529    }
3530
3531    /**
3532     * Set the data this intent is operating on.  This method automatically
3533     * clears any type that was previously set by {@link #setType}.
3534     *
3535     * <p><em>Note: scheme and host name matching in the Android framework is
3536     * case-sensitive, unlike the formal RFC.  As a result,
3537     * you should always ensure that you write your Uri with these elements
3538     * using lower case letters, and normalize any Uris you receive from
3539     * outside of Android to ensure the scheme and host is lower case.</em></p>
3540     *
3541     * @param data The URI of the data this intent is now targeting.
3542     *
3543     * @return Returns the same Intent object, for chaining multiple calls
3544     * into a single statement.
3545     *
3546     * @see #getData
3547     * @see #setType
3548     * @see #setDataAndType
3549     */
3550    public Intent setData(Uri data) {
3551        mData = data;
3552        mType = null;
3553        return this;
3554    }
3555
3556    /**
3557     * Set an explicit MIME data type.  This is used to create intents that
3558     * only specify a type and not data, for example to indicate the type of
3559     * data to return.  This method automatically clears any data that was
3560     * previously set by {@link #setData}.
3561     *
3562     * <p><em>Note: MIME type matching in the Android framework is
3563     * case-sensitive, unlike formal RFC MIME types.  As a result,
3564     * you should always write your MIME types with lower case letters,
3565     * and any MIME types you receive from outside of Android should be
3566     * converted to lower case before supplying them here.</em></p>
3567     *
3568     * @param type The MIME type of the data being handled by this intent.
3569     *
3570     * @return Returns the same Intent object, for chaining multiple calls
3571     * into a single statement.
3572     *
3573     * @see #getType
3574     * @see #setData
3575     * @see #setDataAndType
3576     */
3577    public Intent setType(String type) {
3578        mData = null;
3579        mType = type;
3580        return this;
3581    }
3582
3583    /**
3584     * (Usually optional) Set the data for the intent along with an explicit
3585     * MIME data type.  This method should very rarely be used -- it allows you
3586     * to override the MIME type that would ordinarily be inferred from the
3587     * data with your own type given here.
3588     *
3589     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
3590     * Android framework is case-sensitive, unlike the formal RFC definitions.
3591     * As a result, you should always write these elements with lower case letters,
3592     * and normalize any MIME types or Uris you receive from
3593     * outside of Android to ensure these elements are lower case before
3594     * supplying them here.</em></p>
3595     *
3596     * @param data The URI of the data this intent is now targeting.
3597     * @param type The MIME type of the data being handled by this intent.
3598     *
3599     * @return Returns the same Intent object, for chaining multiple calls
3600     * into a single statement.
3601     *
3602     * @see #setData
3603     * @see #setType
3604     */
3605    public Intent setDataAndType(Uri data, String type) {
3606        mData = data;
3607        mType = type;
3608        return this;
3609    }
3610
3611    /**
3612     * Add a new category to the intent.  Categories provide additional detail
3613     * about the action the intent is perform.  When resolving an intent, only
3614     * activities that provide <em>all</em> of the requested categories will be
3615     * used.
3616     *
3617     * @param category The desired category.  This can be either one of the
3618     *               predefined Intent categories, or a custom category in your own
3619     *               namespace.
3620     *
3621     * @return Returns the same Intent object, for chaining multiple calls
3622     * into a single statement.
3623     *
3624     * @see #hasCategory
3625     * @see #removeCategory
3626     */
3627    public Intent addCategory(String category) {
3628        if (mCategories == null) {
3629            mCategories = new HashSet<String>();
3630        }
3631        mCategories.add(category);
3632        return this;
3633    }
3634
3635    /**
3636     * Remove an category from an intent.
3637     *
3638     * @param category The category to remove.
3639     *
3640     * @see #addCategory
3641     */
3642    public void removeCategory(String category) {
3643        if (mCategories != null) {
3644            mCategories.remove(category);
3645            if (mCategories.size() == 0) {
3646                mCategories = null;
3647            }
3648        }
3649    }
3650
3651    /**
3652     * Add extended data to the intent.  The name must include a package
3653     * prefix, for example the app com.android.contacts would use names
3654     * like "com.android.contacts.ShowAll".
3655     *
3656     * @param name The name of the extra data, with package prefix.
3657     * @param value The boolean data value.
3658     *
3659     * @return Returns the same Intent object, for chaining multiple calls
3660     * into a single statement.
3661     *
3662     * @see #putExtras
3663     * @see #removeExtra
3664     * @see #getBooleanExtra(String, boolean)
3665     */
3666    public Intent putExtra(String name, boolean value) {
3667        if (mExtras == null) {
3668            mExtras = new Bundle();
3669        }
3670        mExtras.putBoolean(name, value);
3671        return this;
3672    }
3673
3674    /**
3675     * Add extended data to the intent.  The name must include a package
3676     * prefix, for example the app com.android.contacts would use names
3677     * like "com.android.contacts.ShowAll".
3678     *
3679     * @param name The name of the extra data, with package prefix.
3680     * @param value The byte data value.
3681     *
3682     * @return Returns the same Intent object, for chaining multiple calls
3683     * into a single statement.
3684     *
3685     * @see #putExtras
3686     * @see #removeExtra
3687     * @see #getByteExtra(String, byte)
3688     */
3689    public Intent putExtra(String name, byte value) {
3690        if (mExtras == null) {
3691            mExtras = new Bundle();
3692        }
3693        mExtras.putByte(name, value);
3694        return this;
3695    }
3696
3697    /**
3698     * Add extended data to the intent.  The name must include a package
3699     * prefix, for example the app com.android.contacts would use names
3700     * like "com.android.contacts.ShowAll".
3701     *
3702     * @param name The name of the extra data, with package prefix.
3703     * @param value The char data value.
3704     *
3705     * @return Returns the same Intent object, for chaining multiple calls
3706     * into a single statement.
3707     *
3708     * @see #putExtras
3709     * @see #removeExtra
3710     * @see #getCharExtra(String, char)
3711     */
3712    public Intent putExtra(String name, char value) {
3713        if (mExtras == null) {
3714            mExtras = new Bundle();
3715        }
3716        mExtras.putChar(name, value);
3717        return this;
3718    }
3719
3720    /**
3721     * Add extended data to the intent.  The name must include a package
3722     * prefix, for example the app com.android.contacts would use names
3723     * like "com.android.contacts.ShowAll".
3724     *
3725     * @param name The name of the extra data, with package prefix.
3726     * @param value The short data value.
3727     *
3728     * @return Returns the same Intent object, for chaining multiple calls
3729     * into a single statement.
3730     *
3731     * @see #putExtras
3732     * @see #removeExtra
3733     * @see #getShortExtra(String, short)
3734     */
3735    public Intent putExtra(String name, short value) {
3736        if (mExtras == null) {
3737            mExtras = new Bundle();
3738        }
3739        mExtras.putShort(name, value);
3740        return this;
3741    }
3742
3743    /**
3744     * Add extended data to the intent.  The name must include a package
3745     * prefix, for example the app com.android.contacts would use names
3746     * like "com.android.contacts.ShowAll".
3747     *
3748     * @param name The name of the extra data, with package prefix.
3749     * @param value The integer data value.
3750     *
3751     * @return Returns the same Intent object, for chaining multiple calls
3752     * into a single statement.
3753     *
3754     * @see #putExtras
3755     * @see #removeExtra
3756     * @see #getIntExtra(String, int)
3757     */
3758    public Intent putExtra(String name, int value) {
3759        if (mExtras == null) {
3760            mExtras = new Bundle();
3761        }
3762        mExtras.putInt(name, value);
3763        return this;
3764    }
3765
3766    /**
3767     * Add extended data to the intent.  The name must include a package
3768     * prefix, for example the app com.android.contacts would use names
3769     * like "com.android.contacts.ShowAll".
3770     *
3771     * @param name The name of the extra data, with package prefix.
3772     * @param value The long data value.
3773     *
3774     * @return Returns the same Intent object, for chaining multiple calls
3775     * into a single statement.
3776     *
3777     * @see #putExtras
3778     * @see #removeExtra
3779     * @see #getLongExtra(String, long)
3780     */
3781    public Intent putExtra(String name, long value) {
3782        if (mExtras == null) {
3783            mExtras = new Bundle();
3784        }
3785        mExtras.putLong(name, value);
3786        return this;
3787    }
3788
3789    /**
3790     * Add extended data to the intent.  The name must include a package
3791     * prefix, for example the app com.android.contacts would use names
3792     * like "com.android.contacts.ShowAll".
3793     *
3794     * @param name The name of the extra data, with package prefix.
3795     * @param value The float data value.
3796     *
3797     * @return Returns the same Intent object, for chaining multiple calls
3798     * into a single statement.
3799     *
3800     * @see #putExtras
3801     * @see #removeExtra
3802     * @see #getFloatExtra(String, float)
3803     */
3804    public Intent putExtra(String name, float value) {
3805        if (mExtras == null) {
3806            mExtras = new Bundle();
3807        }
3808        mExtras.putFloat(name, value);
3809        return this;
3810    }
3811
3812    /**
3813     * Add extended data to the intent.  The name must include a package
3814     * prefix, for example the app com.android.contacts would use names
3815     * like "com.android.contacts.ShowAll".
3816     *
3817     * @param name The name of the extra data, with package prefix.
3818     * @param value The double data value.
3819     *
3820     * @return Returns the same Intent object, for chaining multiple calls
3821     * into a single statement.
3822     *
3823     * @see #putExtras
3824     * @see #removeExtra
3825     * @see #getDoubleExtra(String, double)
3826     */
3827    public Intent putExtra(String name, double value) {
3828        if (mExtras == null) {
3829            mExtras = new Bundle();
3830        }
3831        mExtras.putDouble(name, value);
3832        return this;
3833    }
3834
3835    /**
3836     * Add extended data to the intent.  The name must include a package
3837     * prefix, for example the app com.android.contacts would use names
3838     * like "com.android.contacts.ShowAll".
3839     *
3840     * @param name The name of the extra data, with package prefix.
3841     * @param value The String data value.
3842     *
3843     * @return Returns the same Intent object, for chaining multiple calls
3844     * into a single statement.
3845     *
3846     * @see #putExtras
3847     * @see #removeExtra
3848     * @see #getStringExtra(String)
3849     */
3850    public Intent putExtra(String name, String value) {
3851        if (mExtras == null) {
3852            mExtras = new Bundle();
3853        }
3854        mExtras.putString(name, value);
3855        return this;
3856    }
3857
3858    /**
3859     * Add extended data to the intent.  The name must include a package
3860     * prefix, for example the app com.android.contacts would use names
3861     * like "com.android.contacts.ShowAll".
3862     *
3863     * @param name The name of the extra data, with package prefix.
3864     * @param value The CharSequence data value.
3865     *
3866     * @return Returns the same Intent object, for chaining multiple calls
3867     * into a single statement.
3868     *
3869     * @see #putExtras
3870     * @see #removeExtra
3871     * @see #getCharSequenceExtra(String)
3872     */
3873    public Intent putExtra(String name, CharSequence value) {
3874        if (mExtras == null) {
3875            mExtras = new Bundle();
3876        }
3877        mExtras.putCharSequence(name, value);
3878        return this;
3879    }
3880
3881    /**
3882     * Add extended data to the intent.  The name must include a package
3883     * prefix, for example the app com.android.contacts would use names
3884     * like "com.android.contacts.ShowAll".
3885     *
3886     * @param name The name of the extra data, with package prefix.
3887     * @param value The Parcelable data value.
3888     *
3889     * @return Returns the same Intent object, for chaining multiple calls
3890     * into a single statement.
3891     *
3892     * @see #putExtras
3893     * @see #removeExtra
3894     * @see #getParcelableExtra(String)
3895     */
3896    public Intent putExtra(String name, Parcelable value) {
3897        if (mExtras == null) {
3898            mExtras = new Bundle();
3899        }
3900        mExtras.putParcelable(name, value);
3901        return this;
3902    }
3903
3904    /**
3905     * Add extended data to the intent.  The name must include a package
3906     * prefix, for example the app com.android.contacts would use names
3907     * like "com.android.contacts.ShowAll".
3908     *
3909     * @param name The name of the extra data, with package prefix.
3910     * @param value The Parcelable[] data value.
3911     *
3912     * @return Returns the same Intent object, for chaining multiple calls
3913     * into a single statement.
3914     *
3915     * @see #putExtras
3916     * @see #removeExtra
3917     * @see #getParcelableArrayExtra(String)
3918     */
3919    public Intent putExtra(String name, Parcelable[] value) {
3920        if (mExtras == null) {
3921            mExtras = new Bundle();
3922        }
3923        mExtras.putParcelableArray(name, value);
3924        return this;
3925    }
3926
3927    /**
3928     * Add extended data to the intent.  The name must include a package
3929     * prefix, for example the app com.android.contacts would use names
3930     * like "com.android.contacts.ShowAll".
3931     *
3932     * @param name The name of the extra data, with package prefix.
3933     * @param value The ArrayList<Parcelable> data value.
3934     *
3935     * @return Returns the same Intent object, for chaining multiple calls
3936     * into a single statement.
3937     *
3938     * @see #putExtras
3939     * @see #removeExtra
3940     * @see #getParcelableArrayListExtra(String)
3941     */
3942    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
3943        if (mExtras == null) {
3944            mExtras = new Bundle();
3945        }
3946        mExtras.putParcelableArrayList(name, value);
3947        return this;
3948    }
3949
3950    /**
3951     * Add extended data to the intent.  The name must include a package
3952     * prefix, for example the app com.android.contacts would use names
3953     * like "com.android.contacts.ShowAll".
3954     *
3955     * @param name The name of the extra data, with package prefix.
3956     * @param value The ArrayList<Integer> data value.
3957     *
3958     * @return Returns the same Intent object, for chaining multiple calls
3959     * into a single statement.
3960     *
3961     * @see #putExtras
3962     * @see #removeExtra
3963     * @see #getIntegerArrayListExtra(String)
3964     */
3965    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
3966        if (mExtras == null) {
3967            mExtras = new Bundle();
3968        }
3969        mExtras.putIntegerArrayList(name, value);
3970        return this;
3971    }
3972
3973    /**
3974     * Add extended data to the intent.  The name must include a package
3975     * prefix, for example the app com.android.contacts would use names
3976     * like "com.android.contacts.ShowAll".
3977     *
3978     * @param name The name of the extra data, with package prefix.
3979     * @param value The ArrayList<String> data value.
3980     *
3981     * @return Returns the same Intent object, for chaining multiple calls
3982     * into a single statement.
3983     *
3984     * @see #putExtras
3985     * @see #removeExtra
3986     * @see #getStringArrayListExtra(String)
3987     */
3988    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
3989        if (mExtras == null) {
3990            mExtras = new Bundle();
3991        }
3992        mExtras.putStringArrayList(name, value);
3993        return this;
3994    }
3995
3996    /**
3997     * Add extended data to the intent.  The name must include a package
3998     * prefix, for example the app com.android.contacts would use names
3999     * like "com.android.contacts.ShowAll".
4000     *
4001     * @param name The name of the extra data, with package prefix.
4002     * @param value The Serializable data value.
4003     *
4004     * @return Returns the same Intent object, for chaining multiple calls
4005     * into a single statement.
4006     *
4007     * @see #putExtras
4008     * @see #removeExtra
4009     * @see #getSerializableExtra(String)
4010     */
4011    public Intent putExtra(String name, Serializable value) {
4012        if (mExtras == null) {
4013            mExtras = new Bundle();
4014        }
4015        mExtras.putSerializable(name, value);
4016        return this;
4017    }
4018
4019    /**
4020     * Add extended data to the intent.  The name must include a package
4021     * prefix, for example the app com.android.contacts would use names
4022     * like "com.android.contacts.ShowAll".
4023     *
4024     * @param name The name of the extra data, with package prefix.
4025     * @param value The boolean array data value.
4026     *
4027     * @return Returns the same Intent object, for chaining multiple calls
4028     * into a single statement.
4029     *
4030     * @see #putExtras
4031     * @see #removeExtra
4032     * @see #getBooleanArrayExtra(String)
4033     */
4034    public Intent putExtra(String name, boolean[] value) {
4035        if (mExtras == null) {
4036            mExtras = new Bundle();
4037        }
4038        mExtras.putBooleanArray(name, value);
4039        return this;
4040    }
4041
4042    /**
4043     * Add extended data to the intent.  The name must include a package
4044     * prefix, for example the app com.android.contacts would use names
4045     * like "com.android.contacts.ShowAll".
4046     *
4047     * @param name The name of the extra data, with package prefix.
4048     * @param value The byte array data value.
4049     *
4050     * @return Returns the same Intent object, for chaining multiple calls
4051     * into a single statement.
4052     *
4053     * @see #putExtras
4054     * @see #removeExtra
4055     * @see #getByteArrayExtra(String)
4056     */
4057    public Intent putExtra(String name, byte[] value) {
4058        if (mExtras == null) {
4059            mExtras = new Bundle();
4060        }
4061        mExtras.putByteArray(name, value);
4062        return this;
4063    }
4064
4065    /**
4066     * Add extended data to the intent.  The name must include a package
4067     * prefix, for example the app com.android.contacts would use names
4068     * like "com.android.contacts.ShowAll".
4069     *
4070     * @param name The name of the extra data, with package prefix.
4071     * @param value The short array data value.
4072     *
4073     * @return Returns the same Intent object, for chaining multiple calls
4074     * into a single statement.
4075     *
4076     * @see #putExtras
4077     * @see #removeExtra
4078     * @see #getShortArrayExtra(String)
4079     */
4080    public Intent putExtra(String name, short[] value) {
4081        if (mExtras == null) {
4082            mExtras = new Bundle();
4083        }
4084        mExtras.putShortArray(name, value);
4085        return this;
4086    }
4087
4088    /**
4089     * Add extended data to the intent.  The name must include a package
4090     * prefix, for example the app com.android.contacts would use names
4091     * like "com.android.contacts.ShowAll".
4092     *
4093     * @param name The name of the extra data, with package prefix.
4094     * @param value The char array data value.
4095     *
4096     * @return Returns the same Intent object, for chaining multiple calls
4097     * into a single statement.
4098     *
4099     * @see #putExtras
4100     * @see #removeExtra
4101     * @see #getCharArrayExtra(String)
4102     */
4103    public Intent putExtra(String name, char[] value) {
4104        if (mExtras == null) {
4105            mExtras = new Bundle();
4106        }
4107        mExtras.putCharArray(name, value);
4108        return this;
4109    }
4110
4111    /**
4112     * Add extended data to the intent.  The name must include a package
4113     * prefix, for example the app com.android.contacts would use names
4114     * like "com.android.contacts.ShowAll".
4115     *
4116     * @param name The name of the extra data, with package prefix.
4117     * @param value The int array data value.
4118     *
4119     * @return Returns the same Intent object, for chaining multiple calls
4120     * into a single statement.
4121     *
4122     * @see #putExtras
4123     * @see #removeExtra
4124     * @see #getIntArrayExtra(String)
4125     */
4126    public Intent putExtra(String name, int[] value) {
4127        if (mExtras == null) {
4128            mExtras = new Bundle();
4129        }
4130        mExtras.putIntArray(name, value);
4131        return this;
4132    }
4133
4134    /**
4135     * Add extended data to the intent.  The name must include a package
4136     * prefix, for example the app com.android.contacts would use names
4137     * like "com.android.contacts.ShowAll".
4138     *
4139     * @param name The name of the extra data, with package prefix.
4140     * @param value The byte array data value.
4141     *
4142     * @return Returns the same Intent object, for chaining multiple calls
4143     * into a single statement.
4144     *
4145     * @see #putExtras
4146     * @see #removeExtra
4147     * @see #getLongArrayExtra(String)
4148     */
4149    public Intent putExtra(String name, long[] value) {
4150        if (mExtras == null) {
4151            mExtras = new Bundle();
4152        }
4153        mExtras.putLongArray(name, value);
4154        return this;
4155    }
4156
4157    /**
4158     * Add extended data to the intent.  The name must include a package
4159     * prefix, for example the app com.android.contacts would use names
4160     * like "com.android.contacts.ShowAll".
4161     *
4162     * @param name The name of the extra data, with package prefix.
4163     * @param value The float array data value.
4164     *
4165     * @return Returns the same Intent object, for chaining multiple calls
4166     * into a single statement.
4167     *
4168     * @see #putExtras
4169     * @see #removeExtra
4170     * @see #getFloatArrayExtra(String)
4171     */
4172    public Intent putExtra(String name, float[] value) {
4173        if (mExtras == null) {
4174            mExtras = new Bundle();
4175        }
4176        mExtras.putFloatArray(name, value);
4177        return this;
4178    }
4179
4180    /**
4181     * Add extended data to the intent.  The name must include a package
4182     * prefix, for example the app com.android.contacts would use names
4183     * like "com.android.contacts.ShowAll".
4184     *
4185     * @param name The name of the extra data, with package prefix.
4186     * @param value The double array data value.
4187     *
4188     * @return Returns the same Intent object, for chaining multiple calls
4189     * into a single statement.
4190     *
4191     * @see #putExtras
4192     * @see #removeExtra
4193     * @see #getDoubleArrayExtra(String)
4194     */
4195    public Intent putExtra(String name, double[] value) {
4196        if (mExtras == null) {
4197            mExtras = new Bundle();
4198        }
4199        mExtras.putDoubleArray(name, value);
4200        return this;
4201    }
4202
4203    /**
4204     * Add extended data to the intent.  The name must include a package
4205     * prefix, for example the app com.android.contacts would use names
4206     * like "com.android.contacts.ShowAll".
4207     *
4208     * @param name The name of the extra data, with package prefix.
4209     * @param value The String array data value.
4210     *
4211     * @return Returns the same Intent object, for chaining multiple calls
4212     * into a single statement.
4213     *
4214     * @see #putExtras
4215     * @see #removeExtra
4216     * @see #getStringArrayExtra(String)
4217     */
4218    public Intent putExtra(String name, String[] value) {
4219        if (mExtras == null) {
4220            mExtras = new Bundle();
4221        }
4222        mExtras.putStringArray(name, value);
4223        return this;
4224    }
4225
4226    /**
4227     * Add extended data to the intent.  The name must include a package
4228     * prefix, for example the app com.android.contacts would use names
4229     * like "com.android.contacts.ShowAll".
4230     *
4231     * @param name The name of the extra data, with package prefix.
4232     * @param value The Bundle data value.
4233     *
4234     * @return Returns the same Intent object, for chaining multiple calls
4235     * into a single statement.
4236     *
4237     * @see #putExtras
4238     * @see #removeExtra
4239     * @see #getBundleExtra(String)
4240     */
4241    public Intent putExtra(String name, Bundle value) {
4242        if (mExtras == null) {
4243            mExtras = new Bundle();
4244        }
4245        mExtras.putBundle(name, value);
4246        return this;
4247    }
4248
4249    /**
4250     * Add extended data to the intent.  The name must include a package
4251     * prefix, for example the app com.android.contacts would use names
4252     * like "com.android.contacts.ShowAll".
4253     *
4254     * @param name The name of the extra data, with package prefix.
4255     * @param value The IBinder data value.
4256     *
4257     * @return Returns the same Intent object, for chaining multiple calls
4258     * into a single statement.
4259     *
4260     * @see #putExtras
4261     * @see #removeExtra
4262     * @see #getIBinderExtra(String)
4263     *
4264     * @deprecated
4265     * @hide
4266     */
4267    @Deprecated
4268    public Intent putExtra(String name, IBinder value) {
4269        if (mExtras == null) {
4270            mExtras = new Bundle();
4271        }
4272        mExtras.putIBinder(name, value);
4273        return this;
4274    }
4275
4276    /**
4277     * Copy all extras in 'src' in to this intent.
4278     *
4279     * @param src Contains the extras to copy.
4280     *
4281     * @see #putExtra
4282     */
4283    public Intent putExtras(Intent src) {
4284        if (src.mExtras != null) {
4285            if (mExtras == null) {
4286                mExtras = new Bundle(src.mExtras);
4287            } else {
4288                mExtras.putAll(src.mExtras);
4289            }
4290        }
4291        return this;
4292    }
4293
4294    /**
4295     * Add a set of extended data to the intent.  The keys must include a package
4296     * prefix, for example the app com.android.contacts would use names
4297     * like "com.android.contacts.ShowAll".
4298     *
4299     * @param extras The Bundle of extras to add to this intent.
4300     *
4301     * @see #putExtra
4302     * @see #removeExtra
4303     */
4304    public Intent putExtras(Bundle extras) {
4305        if (mExtras == null) {
4306            mExtras = new Bundle();
4307        }
4308        mExtras.putAll(extras);
4309        return this;
4310    }
4311
4312    /**
4313     * Completely replace the extras in the Intent with the extras in the
4314     * given Intent.
4315     *
4316     * @param src The exact extras contained in this Intent are copied
4317     * into the target intent, replacing any that were previously there.
4318     */
4319    public Intent replaceExtras(Intent src) {
4320        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4321        return this;
4322    }
4323
4324    /**
4325     * Completely replace the extras in the Intent with the given Bundle of
4326     * extras.
4327     *
4328     * @param extras The new set of extras in the Intent, or null to erase
4329     * all extras.
4330     */
4331    public Intent replaceExtras(Bundle extras) {
4332        mExtras = extras != null ? new Bundle(extras) : null;
4333        return this;
4334    }
4335
4336    /**
4337     * Remove extended data from the intent.
4338     *
4339     * @see #putExtra
4340     */
4341    public void removeExtra(String name) {
4342        if (mExtras != null) {
4343            mExtras.remove(name);
4344            if (mExtras.size() == 0) {
4345                mExtras = null;
4346            }
4347        }
4348    }
4349
4350    /**
4351     * Set special flags controlling how this intent is handled.  Most values
4352     * here depend on the type of component being executed by the Intent,
4353     * specifically the FLAG_ACTIVITY_* flags are all for use with
4354     * {@link Context#startActivity Context.startActivity()} and the
4355     * FLAG_RECEIVER_* flags are all for use with
4356     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4357     *
4358     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4359     * Activities and Tasks</a> documentation for important information on how some of these options impact
4360     * the behavior of your application.
4361     *
4362     * @param flags The desired flags.
4363     *
4364     * @return Returns the same Intent object, for chaining multiple calls
4365     * into a single statement.
4366     *
4367     * @see #getFlags
4368     * @see #addFlags
4369     *
4370     * @see #FLAG_GRANT_READ_URI_PERMISSION
4371     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4372     * @see #FLAG_DEBUG_LOG_RESOLUTION
4373     * @see #FLAG_FROM_BACKGROUND
4374     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4375     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4376     * @see #FLAG_ACTIVITY_CLEAR_TOP
4377     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4378     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4379     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4380     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4381     * @see #FLAG_ACTIVITY_NEW_TASK
4382     * @see #FLAG_ACTIVITY_NO_HISTORY
4383     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4384     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4385     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4386     * @see #FLAG_ACTIVITY_SINGLE_TOP
4387     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4388     */
4389    public Intent setFlags(int flags) {
4390        mFlags = flags;
4391        return this;
4392    }
4393
4394    /**
4395     * Add additional flags to the intent (or with existing flags
4396     * value).
4397     *
4398     * @param flags The new flags to set.
4399     *
4400     * @return Returns the same Intent object, for chaining multiple calls
4401     * into a single statement.
4402     *
4403     * @see #setFlags
4404     */
4405    public Intent addFlags(int flags) {
4406        mFlags |= flags;
4407        return this;
4408    }
4409
4410    /**
4411     * (Usually optional) Set an explicit application package name that limits
4412     * the components this Intent will resolve to.  If left to the default
4413     * value of null, all components in all applications will considered.
4414     * If non-null, the Intent can only match the components in the given
4415     * application package.
4416     *
4417     * @param packageName The name of the application package to handle the
4418     * intent, or null to allow any application package.
4419     *
4420     * @return Returns the same Intent object, for chaining multiple calls
4421     * into a single statement.
4422     *
4423     * @see #getPackage
4424     * @see #resolveActivity
4425     */
4426    public Intent setPackage(String packageName) {
4427        mPackage = packageName;
4428        return this;
4429    }
4430
4431    /**
4432     * (Usually optional) Explicitly set the component to handle the intent.
4433     * If left with the default value of null, the system will determine the
4434     * appropriate class to use based on the other fields (action, data,
4435     * type, categories) in the Intent.  If this class is defined, the
4436     * specified class will always be used regardless of the other fields.  You
4437     * should only set this value when you know you absolutely want a specific
4438     * class to be used; otherwise it is better to let the system find the
4439     * appropriate class so that you will respect the installed applications
4440     * and user preferences.
4441     *
4442     * @param component The name of the application component to handle the
4443     * intent, or null to let the system find one for you.
4444     *
4445     * @return Returns the same Intent object, for chaining multiple calls
4446     * into a single statement.
4447     *
4448     * @see #setClass
4449     * @see #setClassName(Context, String)
4450     * @see #setClassName(String, String)
4451     * @see #getComponent
4452     * @see #resolveActivity
4453     */
4454    public Intent setComponent(ComponentName component) {
4455        mComponent = component;
4456        return this;
4457    }
4458
4459    /**
4460     * Convenience for calling {@link #setComponent} with an
4461     * explicit class name.
4462     *
4463     * @param packageContext A Context of the application package implementing
4464     * this class.
4465     * @param className The name of a class inside of the application package
4466     * that will be used as the component for this Intent.
4467     *
4468     * @return Returns the same Intent object, for chaining multiple calls
4469     * into a single statement.
4470     *
4471     * @see #setComponent
4472     * @see #setClass
4473     */
4474    public Intent setClassName(Context packageContext, String className) {
4475        mComponent = new ComponentName(packageContext, className);
4476        return this;
4477    }
4478
4479    /**
4480     * Convenience for calling {@link #setComponent} with an
4481     * explicit application package name and class name.
4482     *
4483     * @param packageName The name of the package implementing the desired
4484     * component.
4485     * @param className The name of a class inside of the application package
4486     * that will be used as the component for this Intent.
4487     *
4488     * @return Returns the same Intent object, for chaining multiple calls
4489     * into a single statement.
4490     *
4491     * @see #setComponent
4492     * @see #setClass
4493     */
4494    public Intent setClassName(String packageName, String className) {
4495        mComponent = new ComponentName(packageName, className);
4496        return this;
4497    }
4498
4499    /**
4500     * Convenience for calling {@link #setComponent(ComponentName)} with the
4501     * name returned by a {@link Class} object.
4502     *
4503     * @param packageContext A Context of the application package implementing
4504     * this class.
4505     * @param cls The class name to set, equivalent to
4506     *            <code>setClassName(context, cls.getName())</code>.
4507     *
4508     * @return Returns the same Intent object, for chaining multiple calls
4509     * into a single statement.
4510     *
4511     * @see #setComponent
4512     */
4513    public Intent setClass(Context packageContext, Class<?> cls) {
4514        mComponent = new ComponentName(packageContext, cls);
4515        return this;
4516    }
4517
4518    /**
4519     * Use with {@link #fillIn} to allow the current action value to be
4520     * overwritten, even if it is already set.
4521     */
4522    public static final int FILL_IN_ACTION = 1<<0;
4523
4524    /**
4525     * Use with {@link #fillIn} to allow the current data or type value
4526     * overwritten, even if it is already set.
4527     */
4528    public static final int FILL_IN_DATA = 1<<1;
4529
4530    /**
4531     * Use with {@link #fillIn} to allow the current categories to be
4532     * overwritten, even if they are already set.
4533     */
4534    public static final int FILL_IN_CATEGORIES = 1<<2;
4535
4536    /**
4537     * Use with {@link #fillIn} to allow the current component value to be
4538     * overwritten, even if it is already set.
4539     */
4540    public static final int FILL_IN_COMPONENT = 1<<3;
4541
4542    /**
4543     * Use with {@link #fillIn} to allow the current package value to be
4544     * overwritten, even if it is already set.
4545     */
4546    public static final int FILL_IN_PACKAGE = 1<<4;
4547
4548    /**
4549     * Copy the contents of <var>other</var> in to this object, but only
4550     * where fields are not defined by this object.  For purposes of a field
4551     * being defined, the following pieces of data in the Intent are
4552     * considered to be separate fields:
4553     *
4554     * <ul>
4555     * <li> action, as set by {@link #setAction}.
4556     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4557     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4558     * <li> categories, as set by {@link #addCategory}.
4559     * <li> package, as set by {@link #setPackage}.
4560     * <li> component, as set by {@link #setComponent(ComponentName)} or
4561     * related methods.
4562     * <li> each top-level name in the associated extras.
4563     * </ul>
4564     *
4565     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4566     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4567     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
4568     * corresponding field will not be replaced if it is already set.
4569     *
4570     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
4571     * specified.
4572     *
4573     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4574     * and Intent B with {action="gotit", data-type="some/thing",
4575     * categories="one","two"}.
4576     *
4577     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4578     * containing: {action="gotit", data-type="some/thing",
4579     * categories="bar"}.
4580     *
4581     * @param other Another Intent whose values are to be used to fill in
4582     * the current one.
4583     * @param flags Options to control which fields can be filled in.
4584     *
4585     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4586     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4587     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4588     */
4589    public int fillIn(Intent other, int flags) {
4590        int changes = 0;
4591        if (other.mAction != null
4592                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
4593            mAction = other.mAction;
4594            changes |= FILL_IN_ACTION;
4595        }
4596        if ((other.mData != null || other.mType != null)
4597                && ((mData == null && mType == null)
4598                        || (flags&FILL_IN_DATA) != 0)) {
4599            mData = other.mData;
4600            mType = other.mType;
4601            changes |= FILL_IN_DATA;
4602        }
4603        if (other.mCategories != null
4604                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
4605            if (other.mCategories != null) {
4606                mCategories = new HashSet<String>(other.mCategories);
4607            }
4608            changes |= FILL_IN_CATEGORIES;
4609        }
4610        if (other.mPackage != null
4611                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
4612            mPackage = other.mPackage;
4613            changes |= FILL_IN_PACKAGE;
4614        }
4615        // Component is special: it can -only- be set if explicitly allowed,
4616        // since otherwise the sender could force the intent somewhere the
4617        // originator didn't intend.
4618        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
4619            mComponent = other.mComponent;
4620            changes |= FILL_IN_COMPONENT;
4621        }
4622        mFlags |= other.mFlags;
4623        if (mExtras == null) {
4624            if (other.mExtras != null) {
4625                mExtras = new Bundle(other.mExtras);
4626            }
4627        } else if (other.mExtras != null) {
4628            try {
4629                Bundle newb = new Bundle(other.mExtras);
4630                newb.putAll(mExtras);
4631                mExtras = newb;
4632            } catch (RuntimeException e) {
4633                // Modifying the extras can cause us to unparcel the contents
4634                // of the bundle, and if we do this in the system process that
4635                // may fail.  We really should handle this (i.e., the Bundle
4636                // impl shouldn't be on top of a plain map), but for now just
4637                // ignore it and keep the original contents. :(
4638                Log.w("Intent", "Failure filling in extras", e);
4639            }
4640        }
4641        return changes;
4642    }
4643
4644    /**
4645     * Wrapper class holding an Intent and implementing comparisons on it for
4646     * the purpose of filtering.  The class implements its
4647     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4648     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4649     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4650     * on the wrapped Intent.
4651     */
4652    public static final class FilterComparison {
4653        private final Intent mIntent;
4654        private final int mHashCode;
4655
4656        public FilterComparison(Intent intent) {
4657            mIntent = intent;
4658            mHashCode = intent.filterHashCode();
4659        }
4660
4661        /**
4662         * Return the Intent that this FilterComparison represents.
4663         * @return Returns the Intent held by the FilterComparison.  Do
4664         * not modify!
4665         */
4666        public Intent getIntent() {
4667            return mIntent;
4668        }
4669
4670        @Override
4671        public boolean equals(Object obj) {
4672            if (obj instanceof FilterComparison) {
4673                Intent other = ((FilterComparison)obj).mIntent;
4674                return mIntent.filterEquals(other);
4675            }
4676            return false;
4677        }
4678
4679        @Override
4680        public int hashCode() {
4681            return mHashCode;
4682        }
4683    }
4684
4685    /**
4686     * Determine if two intents are the same for the purposes of intent
4687     * resolution (filtering). That is, if their action, data, type,
4688     * class, and categories are the same.  This does <em>not</em> compare
4689     * any extra data included in the intents.
4690     *
4691     * @param other The other Intent to compare against.
4692     *
4693     * @return Returns true if action, data, type, class, and categories
4694     *         are the same.
4695     */
4696    public boolean filterEquals(Intent other) {
4697        if (other == null) {
4698            return false;
4699        }
4700        if (mAction != other.mAction) {
4701            if (mAction != null) {
4702                if (!mAction.equals(other.mAction)) {
4703                    return false;
4704                }
4705            } else {
4706                if (!other.mAction.equals(mAction)) {
4707                    return false;
4708                }
4709            }
4710        }
4711        if (mData != other.mData) {
4712            if (mData != null) {
4713                if (!mData.equals(other.mData)) {
4714                    return false;
4715                }
4716            } else {
4717                if (!other.mData.equals(mData)) {
4718                    return false;
4719                }
4720            }
4721        }
4722        if (mType != other.mType) {
4723            if (mType != null) {
4724                if (!mType.equals(other.mType)) {
4725                    return false;
4726                }
4727            } else {
4728                if (!other.mType.equals(mType)) {
4729                    return false;
4730                }
4731            }
4732        }
4733        if (mPackage != other.mPackage) {
4734            if (mPackage != null) {
4735                if (!mPackage.equals(other.mPackage)) {
4736                    return false;
4737                }
4738            } else {
4739                if (!other.mPackage.equals(mPackage)) {
4740                    return false;
4741                }
4742            }
4743        }
4744        if (mComponent != other.mComponent) {
4745            if (mComponent != null) {
4746                if (!mComponent.equals(other.mComponent)) {
4747                    return false;
4748                }
4749            } else {
4750                if (!other.mComponent.equals(mComponent)) {
4751                    return false;
4752                }
4753            }
4754        }
4755        if (mCategories != other.mCategories) {
4756            if (mCategories != null) {
4757                if (!mCategories.equals(other.mCategories)) {
4758                    return false;
4759                }
4760            } else {
4761                if (!other.mCategories.equals(mCategories)) {
4762                    return false;
4763                }
4764            }
4765        }
4766
4767        return true;
4768    }
4769
4770    /**
4771     * Generate hash code that matches semantics of filterEquals().
4772     *
4773     * @return Returns the hash value of the action, data, type, class, and
4774     *         categories.
4775     *
4776     * @see #filterEquals
4777     */
4778    public int filterHashCode() {
4779        int code = 0;
4780        if (mAction != null) {
4781            code += mAction.hashCode();
4782        }
4783        if (mData != null) {
4784            code += mData.hashCode();
4785        }
4786        if (mType != null) {
4787            code += mType.hashCode();
4788        }
4789        if (mPackage != null) {
4790            code += mPackage.hashCode();
4791        }
4792        if (mComponent != null) {
4793            code += mComponent.hashCode();
4794        }
4795        if (mCategories != null) {
4796            code += mCategories.hashCode();
4797        }
4798        return code;
4799    }
4800
4801    @Override
4802    public String toString() {
4803        StringBuilder   b = new StringBuilder(128);
4804
4805        b.append("Intent { ");
4806        toShortString(b, true, true);
4807        b.append(" }");
4808
4809        return b.toString();
4810    }
4811
4812    /** @hide */
4813    public String toShortString(boolean comp, boolean extras) {
4814        StringBuilder   b = new StringBuilder(128);
4815        toShortString(b, comp, extras);
4816        return b.toString();
4817    }
4818
4819    /** @hide */
4820    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
4821        boolean first = true;
4822        if (mAction != null) {
4823            b.append("act=").append(mAction);
4824            first = false;
4825        }
4826        if (mCategories != null) {
4827            if (!first) {
4828                b.append(' ');
4829            }
4830            first = false;
4831            b.append("cat=[");
4832            Iterator<String> i = mCategories.iterator();
4833            boolean didone = false;
4834            while (i.hasNext()) {
4835                if (didone) b.append(",");
4836                didone = true;
4837                b.append(i.next());
4838            }
4839            b.append("]");
4840        }
4841        if (mData != null) {
4842            if (!first) {
4843                b.append(' ');
4844            }
4845            first = false;
4846            b.append("dat=").append(mData);
4847        }
4848        if (mType != null) {
4849            if (!first) {
4850                b.append(' ');
4851            }
4852            first = false;
4853            b.append("typ=").append(mType);
4854        }
4855        if (mFlags != 0) {
4856            if (!first) {
4857                b.append(' ');
4858            }
4859            first = false;
4860            b.append("flg=0x").append(Integer.toHexString(mFlags));
4861        }
4862        if (mPackage != null) {
4863            if (!first) {
4864                b.append(' ');
4865            }
4866            first = false;
4867            b.append("pkg=").append(mPackage);
4868        }
4869        if (comp && mComponent != null) {
4870            if (!first) {
4871                b.append(' ');
4872            }
4873            first = false;
4874            b.append("cmp=").append(mComponent.flattenToShortString());
4875        }
4876        if (extras && mExtras != null) {
4877            if (!first) {
4878                b.append(' ');
4879            }
4880            first = false;
4881            b.append("(has extras)");
4882        }
4883    }
4884
4885    /**
4886     * Call {@link #toUri} with 0 flags.
4887     * @deprecated Use {@link #toUri} instead.
4888     */
4889    @Deprecated
4890    public String toURI() {
4891        return toUri(0);
4892    }
4893
4894    /**
4895     * Convert this Intent into a String holding a URI representation of it.
4896     * The returned URI string has been properly URI encoded, so it can be
4897     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
4898     * Intent's data as the base URI, with an additional fragment describing
4899     * the action, categories, type, flags, package, component, and extras.
4900     *
4901     * <p>You can convert the returned string back to an Intent with
4902     * {@link #getIntent}.
4903     *
4904     * @param flags Additional operating flags.  Either 0 or
4905     * {@link #URI_INTENT_SCHEME}.
4906     *
4907     * @return Returns a URI encoding URI string describing the entire contents
4908     * of the Intent.
4909     */
4910    public String toUri(int flags) {
4911        StringBuilder uri = new StringBuilder(128);
4912        String scheme = null;
4913        if (mData != null) {
4914            String data = mData.toString();
4915            if ((flags&URI_INTENT_SCHEME) != 0) {
4916                final int N = data.length();
4917                for (int i=0; i<N; i++) {
4918                    char c = data.charAt(i);
4919                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
4920                            || c == '.' || c == '-') {
4921                        continue;
4922                    }
4923                    if (c == ':' && i > 0) {
4924                        // Valid scheme.
4925                        scheme = data.substring(0, i);
4926                        uri.append("intent:");
4927                        data = data.substring(i+1);
4928                        break;
4929                    }
4930
4931                    // No scheme.
4932                    break;
4933                }
4934            }
4935            uri.append(data);
4936
4937        } else if ((flags&URI_INTENT_SCHEME) != 0) {
4938            uri.append("intent:");
4939        }
4940
4941        uri.append("#Intent;");
4942
4943        if (scheme != null) {
4944            uri.append("scheme=").append(scheme).append(';');
4945        }
4946        if (mAction != null) {
4947            uri.append("action=").append(Uri.encode(mAction)).append(';');
4948        }
4949        if (mCategories != null) {
4950            for (String category : mCategories) {
4951                uri.append("category=").append(Uri.encode(category)).append(';');
4952            }
4953        }
4954        if (mType != null) {
4955            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
4956        }
4957        if (mFlags != 0) {
4958            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
4959        }
4960        if (mPackage != null) {
4961            uri.append("package=").append(Uri.encode(mPackage)).append(';');
4962        }
4963        if (mComponent != null) {
4964            uri.append("component=").append(Uri.encode(
4965                    mComponent.flattenToShortString(), "/")).append(';');
4966        }
4967        if (mExtras != null) {
4968            for (String key : mExtras.keySet()) {
4969                final Object value = mExtras.get(key);
4970                char entryType =
4971                        value instanceof String    ? 'S' :
4972                        value instanceof Boolean   ? 'B' :
4973                        value instanceof Byte      ? 'b' :
4974                        value instanceof Character ? 'c' :
4975                        value instanceof Double    ? 'd' :
4976                        value instanceof Float     ? 'f' :
4977                        value instanceof Integer   ? 'i' :
4978                        value instanceof Long      ? 'l' :
4979                        value instanceof Short     ? 's' :
4980                        '\0';
4981
4982                if (entryType != '\0') {
4983                    uri.append(entryType);
4984                    uri.append('.');
4985                    uri.append(Uri.encode(key));
4986                    uri.append('=');
4987                    uri.append(Uri.encode(value.toString()));
4988                    uri.append(';');
4989                }
4990            }
4991        }
4992
4993        uri.append("end");
4994
4995        return uri.toString();
4996    }
4997
4998    public int describeContents() {
4999        return (mExtras != null) ? mExtras.describeContents() : 0;
5000    }
5001
5002    public void writeToParcel(Parcel out, int flags) {
5003        out.writeString(mAction);
5004        Uri.writeToParcel(out, mData);
5005        out.writeString(mType);
5006        out.writeInt(mFlags);
5007        out.writeString(mPackage);
5008        ComponentName.writeToParcel(mComponent, out);
5009
5010        if (mCategories != null) {
5011            out.writeInt(mCategories.size());
5012            for (String category : mCategories) {
5013                out.writeString(category);
5014            }
5015        } else {
5016            out.writeInt(0);
5017        }
5018
5019        out.writeBundle(mExtras);
5020    }
5021
5022    public static final Parcelable.Creator<Intent> CREATOR
5023            = new Parcelable.Creator<Intent>() {
5024        public Intent createFromParcel(Parcel in) {
5025            return new Intent(in);
5026        }
5027        public Intent[] newArray(int size) {
5028            return new Intent[size];
5029        }
5030    };
5031
5032    private Intent(Parcel in) {
5033        readFromParcel(in);
5034    }
5035
5036    public void readFromParcel(Parcel in) {
5037        mAction = in.readString();
5038        mData = Uri.CREATOR.createFromParcel(in);
5039        mType = in.readString();
5040        mFlags = in.readInt();
5041        mPackage = in.readString();
5042        mComponent = ComponentName.readFromParcel(in);
5043
5044        int N = in.readInt();
5045        if (N > 0) {
5046            mCategories = new HashSet<String>();
5047            int i;
5048            for (i=0; i<N; i++) {
5049                mCategories.add(in.readString());
5050            }
5051        } else {
5052            mCategories = null;
5053        }
5054
5055        mExtras = in.readBundle();
5056    }
5057
5058    /**
5059     * Parses the "intent" element (and its children) from XML and instantiates
5060     * an Intent object.  The given XML parser should be located at the tag
5061     * where parsing should start (often named "intent"), from which the
5062     * basic action, data, type, and package and class name will be
5063     * retrieved.  The function will then parse in to any child elements,
5064     * looking for <category android:name="xxx"> tags to add categories and
5065     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5066     * to the intent.
5067     *
5068     * @param resources The Resources to use when inflating resources.
5069     * @param parser The XML parser pointing at an "intent" tag.
5070     * @param attrs The AttributeSet interface for retrieving extended
5071     * attribute data at the current <var>parser</var> location.
5072     * @return An Intent object matching the XML data.
5073     * @throws XmlPullParserException If there was an XML parsing error.
5074     * @throws IOException If there was an I/O error.
5075     */
5076    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5077            throws XmlPullParserException, IOException {
5078        Intent intent = new Intent();
5079
5080        TypedArray sa = resources.obtainAttributes(attrs,
5081                com.android.internal.R.styleable.Intent);
5082
5083        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5084
5085        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5086        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5087        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5088
5089        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5090        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5091        if (packageName != null && className != null) {
5092            intent.setComponent(new ComponentName(packageName, className));
5093        }
5094
5095        sa.recycle();
5096
5097        int outerDepth = parser.getDepth();
5098        int type;
5099        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5100               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5101            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5102                continue;
5103            }
5104
5105            String nodeName = parser.getName();
5106            if (nodeName.equals("category")) {
5107                sa = resources.obtainAttributes(attrs,
5108                        com.android.internal.R.styleable.IntentCategory);
5109                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5110                sa.recycle();
5111
5112                if (cat != null) {
5113                    intent.addCategory(cat);
5114                }
5115                XmlUtils.skipCurrentTag(parser);
5116
5117            } else if (nodeName.equals("extra")) {
5118                if (intent.mExtras == null) {
5119                    intent.mExtras = new Bundle();
5120                }
5121                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5122                XmlUtils.skipCurrentTag(parser);
5123
5124            } else {
5125                XmlUtils.skipCurrentTag(parser);
5126            }
5127        }
5128
5129        return intent;
5130    }
5131}
5132