Intent.java revision 1d62ea9d8c2646d198b6967e2c6ae3dad5c18f9e
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 *     <li> {@link #CATEGORY_CAR_DOCK}
533 *     <li> {@link #CATEGORY_DESK_DOCK}
534 * </ul>
535 *
536 * <h3>Standard Extra Data</h3>
537 *
538 * <p>These are the current standard fields that can be used as extra data via
539 * {@link #putExtra}.
540 *
541 * <ul>
542 *     <li> {@link #EXTRA_TEMPLATE}
543 *     <li> {@link #EXTRA_INTENT}
544 *     <li> {@link #EXTRA_STREAM}
545 *     <li> {@link #EXTRA_TEXT}
546 * </ul>
547 *
548 * <h3>Flags</h3>
549 *
550 * <p>These are the possible flags that can be used in the Intent via
551 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
552 * of all possible flags.
553 */
554public class Intent implements Parcelable {
555    // ---------------------------------------------------------------------
556    // ---------------------------------------------------------------------
557    // Standard intent activity actions (see action variable).
558
559    /**
560     *  Activity Action: Start as a main entry point, does not expect to
561     *  receive data.
562     *  <p>Input: nothing
563     *  <p>Output: nothing
564     */
565    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
566    public static final String ACTION_MAIN = "android.intent.action.MAIN";
567
568    /**
569     * Activity Action: Display the data to the user.  This is the most common
570     * action performed on data -- it is the generic action you can use on
571     * a piece of data to get the most reasonable thing to occur.  For example,
572     * when used on a contacts entry it will view the entry; when used on a
573     * mailto: URI it will bring up a compose window filled with the information
574     * supplied by the URI; when used with a tel: URI it will invoke the
575     * dialer.
576     * <p>Input: {@link #getData} is URI from which to retrieve data.
577     * <p>Output: nothing.
578     */
579    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
580    public static final String ACTION_VIEW = "android.intent.action.VIEW";
581
582    /**
583     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
584     * performed on a piece of data.
585     */
586    public static final String ACTION_DEFAULT = ACTION_VIEW;
587
588    /**
589     * Used to indicate that some piece of data should be attached to some other
590     * place.  For example, image data could be attached to a contact.  It is up
591     * to the recipient to decide where the data should be attached; the intent
592     * does not specify the ultimate destination.
593     * <p>Input: {@link #getData} is URI of data to be attached.
594     * <p>Output: nothing.
595     */
596    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
597    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
598
599    /**
600     * Activity Action: Provide explicit editable access to the given data.
601     * <p>Input: {@link #getData} is URI of data to be edited.
602     * <p>Output: nothing.
603     */
604    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
605    public static final String ACTION_EDIT = "android.intent.action.EDIT";
606
607    /**
608     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
609     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
610     * The extras can contain type specific data to pass through to the editing/creating
611     * activity.
612     * <p>Output: The URI of the item that was picked.  This must be a content:
613     * URI so that any receiver can access it.
614     */
615    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
616    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
617
618    /**
619     * Activity Action: Pick an item from the data, returning what was selected.
620     * <p>Input: {@link #getData} is URI containing a directory of data
621     * (vnd.android.cursor.dir/*) from which to pick an item.
622     * <p>Output: The URI of the item that was picked.
623     */
624    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
625    public static final String ACTION_PICK = "android.intent.action.PICK";
626
627    /**
628     * Activity Action: Creates a shortcut.
629     * <p>Input: Nothing.</p>
630     * <p>Output: An Intent representing the shortcut. The intent must contain three
631     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
632     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
633     * (value: ShortcutIconResource).</p>
634     *
635     * @see #EXTRA_SHORTCUT_INTENT
636     * @see #EXTRA_SHORTCUT_NAME
637     * @see #EXTRA_SHORTCUT_ICON
638     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
639     * @see android.content.Intent.ShortcutIconResource
640     */
641    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
642    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
643
644    /**
645     * The name of the extra used to define the Intent of a shortcut.
646     *
647     * @see #ACTION_CREATE_SHORTCUT
648     */
649    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
650    /**
651     * The name of the extra used to define the name of a shortcut.
652     *
653     * @see #ACTION_CREATE_SHORTCUT
654     */
655    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
656    /**
657     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
658     *
659     * @see #ACTION_CREATE_SHORTCUT
660     */
661    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
662    /**
663     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
664     *
665     * @see #ACTION_CREATE_SHORTCUT
666     * @see android.content.Intent.ShortcutIconResource
667     */
668    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
669            "android.intent.extra.shortcut.ICON_RESOURCE";
670
671    /**
672     * Represents a shortcut/live folder icon resource.
673     *
674     * @see Intent#ACTION_CREATE_SHORTCUT
675     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
676     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
677     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
678     */
679    public static class ShortcutIconResource implements Parcelable {
680        /**
681         * The package name of the application containing the icon.
682         */
683        public String packageName;
684
685        /**
686         * The resource name of the icon, including package, name and type.
687         */
688        public String resourceName;
689
690        /**
691         * Creates a new ShortcutIconResource for the specified context and resource
692         * identifier.
693         *
694         * @param context The context of the application.
695         * @param resourceId The resource idenfitier for the icon.
696         * @return A new ShortcutIconResource with the specified's context package name
697         *         and icon resource idenfitier.
698         */
699        public static ShortcutIconResource fromContext(Context context, int resourceId) {
700            ShortcutIconResource icon = new ShortcutIconResource();
701            icon.packageName = context.getPackageName();
702            icon.resourceName = context.getResources().getResourceName(resourceId);
703            return icon;
704        }
705
706        /**
707         * Used to read a ShortcutIconResource from a Parcel.
708         */
709        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
710            new Parcelable.Creator<ShortcutIconResource>() {
711
712                public ShortcutIconResource createFromParcel(Parcel source) {
713                    ShortcutIconResource icon = new ShortcutIconResource();
714                    icon.packageName = source.readString();
715                    icon.resourceName = source.readString();
716                    return icon;
717                }
718
719                public ShortcutIconResource[] newArray(int size) {
720                    return new ShortcutIconResource[size];
721                }
722            };
723
724        /**
725         * No special parcel contents.
726         */
727        public int describeContents() {
728            return 0;
729        }
730
731        public void writeToParcel(Parcel dest, int flags) {
732            dest.writeString(packageName);
733            dest.writeString(resourceName);
734        }
735
736        @Override
737        public String toString() {
738            return resourceName;
739        }
740    }
741
742    /**
743     * Activity Action: Display an activity chooser, allowing the user to pick
744     * what they want to before proceeding.  This can be used as an alternative
745     * to the standard activity picker that is displayed by the system when
746     * you try to start an activity with multiple possible matches, with these
747     * differences in behavior:
748     * <ul>
749     * <li>You can specify the title that will appear in the activity chooser.
750     * <li>The user does not have the option to make one of the matching
751     * activities a preferred activity, and all possible activities will
752     * always be shown even if one of them is currently marked as the
753     * preferred activity.
754     * </ul>
755     * <p>
756     * This action should be used when the user will naturally expect to
757     * select an activity in order to proceed.  An example if when not to use
758     * it is when the user clicks on a "mailto:" link.  They would naturally
759     * expect to go directly to their mail app, so startActivity() should be
760     * called directly: it will
761     * either launch the current preferred app, or put up a dialog allowing the
762     * user to pick an app to use and optionally marking that as preferred.
763     * <p>
764     * In contrast, if the user is selecting a menu item to send a picture
765     * they are viewing to someone else, there are many different things they
766     * may want to do at this point: send it through e-mail, upload it to a
767     * web service, etc.  In this case the CHOOSER action should be used, to
768     * always present to the user a list of the things they can do, with a
769     * nice title given by the caller such as "Send this photo with:".
770     * <p>
771     * As a convenience, an Intent of this form can be created with the
772     * {@link #createChooser} function.
773     * <p>Input: No data should be specified.  get*Extra must have
774     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
775     * and can optionally have a {@link #EXTRA_TITLE} field containing the
776     * title text to display in the chooser.
777     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
778     */
779    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
780    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
781
782    /**
783     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
784     *
785     * @param target The Intent that the user will be selecting an activity
786     * to perform.
787     * @param title Optional title that will be displayed in the chooser.
788     * @return Return a new Intent object that you can hand to
789     * {@link Context#startActivity(Intent) Context.startActivity()} and
790     * related methods.
791     */
792    public static Intent createChooser(Intent target, CharSequence title) {
793        Intent intent = new Intent(ACTION_CHOOSER);
794        intent.putExtra(EXTRA_INTENT, target);
795        if (title != null) {
796            intent.putExtra(EXTRA_TITLE, title);
797        }
798        return intent;
799    }
800    /**
801     * Activity Action: Allow the user to select a particular kind of data and
802     * return it.  This is different than {@link #ACTION_PICK} in that here we
803     * just say what kind of data is desired, not a URI of existing data from
804     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
805     * create the data as it runs (for example taking a picture or recording a
806     * sound), let them browser over the web and download the desired data,
807     * etc.
808     * <p>
809     * There are two main ways to use this action: if you want an specific kind
810     * of data, such as a person contact, you set the MIME type to the kind of
811     * data you want and launch it with {@link Context#startActivity(Intent)}.
812     * The system will then launch the best application to select that kind
813     * of data for you.
814     * <p>
815     * You may also be interested in any of a set of types of content the user
816     * can pick.  For example, an e-mail application that wants to allow the
817     * user to add an attachment to an e-mail message can use this action to
818     * bring up a list of all of the types of content the user can attach.
819     * <p>
820     * In this case, you should wrap the GET_CONTENT intent with a chooser
821     * (through {@link #createChooser}), which will give the proper interface
822     * for the user to pick how to send your data and allow you to specify
823     * a prompt indicating what they are doing.  You will usually specify a
824     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
825     * broad range of content types the user can select from.
826     * <p>
827     * When using such a broad GET_CONTENT action, it is often desireable to
828     * only pick from data that can be represented as a stream.  This is
829     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
830     * <p>
831     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
832     * that no URI is supplied in the intent, as there are no constraints on
833     * where the returned data originally comes from.  You may also include the
834     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
835     * opened as a stream.
836     * <p>
837     * Output: The URI of the item that was picked.  This must be a content:
838     * URI so that any receiver can access it.
839     */
840    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
841    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
842    /**
843     * Activity Action: Dial a number as specified by the data.  This shows a
844     * UI with the number being dialed, allowing the user to explicitly
845     * initiate the call.
846     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
847     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
848     * number.
849     * <p>Output: nothing.
850     */
851    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
852    public static final String ACTION_DIAL = "android.intent.action.DIAL";
853    /**
854     * Activity Action: Perform a call to someone specified by the data.
855     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
856     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
857     * number.
858     * <p>Output: nothing.
859     *
860     * <p>Note: there will be restrictions on which applications can initiate a
861     * call; most applications should use the {@link #ACTION_DIAL}.
862     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
863     * numbers.  Applications can <strong>dial</strong> emergency numbers using
864     * {@link #ACTION_DIAL}, however.
865     */
866    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
867    public static final String ACTION_CALL = "android.intent.action.CALL";
868    /**
869     * Activity Action: Perform a call to an emergency number specified by the
870     * data.
871     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
872     * tel: URI of an explicit phone number.
873     * <p>Output: nothing.
874     * @hide
875     */
876    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
877    /**
878     * Activity action: Perform a call to any number (emergency or not)
879     * specified by the data.
880     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
881     * tel: URI of an explicit phone number.
882     * <p>Output: nothing.
883     * @hide
884     */
885    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
886    /**
887     * Activity Action: Send a message to someone specified by the data.
888     * <p>Input: {@link #getData} is URI describing the target.
889     * <p>Output: nothing.
890     */
891    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
892    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
893    /**
894     * Activity Action: Deliver some data to someone else.  Who the data is
895     * being delivered to is not specified; it is up to the receiver of this
896     * action to ask the user where the data should be sent.
897     * <p>
898     * When launching a SEND intent, you should usually wrap it in a chooser
899     * (through {@link #createChooser}), which will give the proper interface
900     * for the user to pick how to send your data and allow you to specify
901     * a prompt indicating what they are doing.
902     * <p>
903     * Input: {@link #getType} is the MIME type of the data being sent.
904     * get*Extra can have either a {@link #EXTRA_TEXT}
905     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
906     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
907     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
908     * if the MIME type is unknown (this will only allow senders that can
909     * handle generic data streams).
910     * <p>
911     * Optional standard extras, which may be interpreted by some recipients as
912     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
913     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
914     * <p>
915     * Output: nothing.
916     */
917    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
918    public static final String ACTION_SEND = "android.intent.action.SEND";
919    /**
920     * Activity Action: Deliver multiple data to someone else.
921     * <p>
922     * Like ACTION_SEND, except the data is multiple.
923     * <p>
924     * Input: {@link #getType} is the MIME type of the data being sent.
925     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
926     * #EXTRA_STREAM} field, containing the data to be sent.
927     * <p>
928     * Multiple types are supported, and receivers should handle mixed types
929     * whenever possible. The right way for the receiver to check them is to
930     * use the content resolver on each URI. The intent sender should try to
931     * put the most concrete mime type in the intent type, but it can fall
932     * back to {@literal <type>/*} or {@literal *}/* as needed.
933     * <p>
934     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
935     * be image/jpg, but if you are sending image/jpg and image/png, then the
936     * intent's type should be image/*.
937     * <p>
938     * Optional standard extras, which may be interpreted by some recipients as
939     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
940     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
941     * <p>
942     * Output: nothing.
943     */
944    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
945    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
946    /**
947     * Activity Action: Handle an incoming phone call.
948     * <p>Input: nothing.
949     * <p>Output: nothing.
950     */
951    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
952    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
953    /**
954     * Activity Action: Insert an empty item into the given container.
955     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
956     * in which to place the data.
957     * <p>Output: URI of the new data that was created.
958     */
959    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
960    public static final String ACTION_INSERT = "android.intent.action.INSERT";
961    /**
962     * Activity Action: Delete the given data from its container.
963     * <p>Input: {@link #getData} is URI of data to be deleted.
964     * <p>Output: nothing.
965     */
966    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
967    public static final String ACTION_DELETE = "android.intent.action.DELETE";
968    /**
969     * Activity Action: Run the data, whatever that means.
970     * <p>Input: ?  (Note: this is currently specific to the test harness.)
971     * <p>Output: nothing.
972     */
973    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
974    public static final String ACTION_RUN = "android.intent.action.RUN";
975    /**
976     * Activity Action: Perform a data synchronization.
977     * <p>Input: ?
978     * <p>Output: ?
979     */
980    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
981    public static final String ACTION_SYNC = "android.intent.action.SYNC";
982    /**
983     * Activity Action: Pick an activity given an intent, returning the class
984     * selected.
985     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
986     * used with {@link PackageManager#queryIntentActivities} to determine the
987     * set of activities from which to pick.
988     * <p>Output: Class name of the activity that was selected.
989     */
990    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
991    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
992    /**
993     * Activity Action: Perform a search.
994     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
995     * is the text to search for.  If empty, simply
996     * enter your search results Activity with the search UI activated.
997     * <p>Output: nothing.
998     */
999    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1000    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1001    /**
1002     * Activity Action: Start the platform-defined tutorial
1003     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1004     * is the text to search for.  If empty, simply
1005     * enter your search results Activity with the search UI activated.
1006     * <p>Output: nothing.
1007     */
1008    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1009    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1010    /**
1011     * Activity Action: Perform a web search.
1012     * <p>
1013     * Input: {@link android.app.SearchManager#QUERY
1014     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1015     * a url starts with http or https, the site will be opened. If it is plain
1016     * text, Google search will be applied.
1017     * <p>
1018     * Output: nothing.
1019     */
1020    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1021    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1022    /**
1023     * Activity Action: List all available applications
1024     * <p>Input: Nothing.
1025     * <p>Output: nothing.
1026     */
1027    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1028    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1029    /**
1030     * Activity Action: Show settings for choosing wallpaper
1031     * <p>Input: Nothing.
1032     * <p>Output: Nothing.
1033     */
1034    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1035    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1036
1037    /**
1038     * Activity Action: Show activity for reporting a bug.
1039     * <p>Input: Nothing.
1040     * <p>Output: Nothing.
1041     */
1042    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1043    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1044
1045    /**
1046     *  Activity Action: Main entry point for factory tests.  Only used when
1047     *  the device is booting in factory test node.  The implementing package
1048     *  must be installed in the system image.
1049     *  <p>Input: nothing
1050     *  <p>Output: nothing
1051     */
1052    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1053
1054    /**
1055     * Activity Action: The user pressed the "call" button to go to the dialer
1056     * or other appropriate UI for placing a call.
1057     * <p>Input: Nothing.
1058     * <p>Output: Nothing.
1059     */
1060    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1061    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1062
1063    /**
1064     * Activity Action: Start Voice Command.
1065     * <p>Input: Nothing.
1066     * <p>Output: Nothing.
1067     */
1068    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1069    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1070
1071    /**
1072     * Activity Action: Start action associated with long pressing on the
1073     * search key.
1074     * <p>Input: Nothing.
1075     * <p>Output: Nothing.
1076     */
1077    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1078    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1079
1080    /**
1081     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1082     * This intent is delivered to the package which installed the application, usually
1083     * the Market.
1084     * <p>Input: No data is specified. The bug report is passed in using
1085     * an {@link #EXTRA_BUG_REPORT} field.
1086     * <p>Output: Nothing.
1087     * @hide
1088     */
1089    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1090    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1091
1092    /**
1093     * Activity Action: Show power usage information to the user.
1094     * <p>Input: Nothing.
1095     * <p>Output: Nothing.
1096     */
1097    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1098    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1099
1100    /**
1101     * Activity Action: Setup wizard to launch after a platform update.  This
1102     * activity should have a string meta-data field associated with it,
1103     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1104     * the platform for setup.  The activity will be launched only if
1105     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1106     * same value.
1107     * <p>Input: Nothing.
1108     * <p>Output: Nothing.
1109     * @hide
1110     */
1111    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1112    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1113
1114    /**
1115     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1116     * describing the last run version of the platform that was setup.
1117     * @hide
1118     */
1119    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1120
1121    // ---------------------------------------------------------------------
1122    // ---------------------------------------------------------------------
1123    // Standard intent broadcast actions (see action variable).
1124
1125    /**
1126     * Broadcast Action: Sent after the screen turns off.
1127     *
1128     * <p class="note">This is a protected intent that can only be sent
1129     * by the system.
1130     */
1131    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1132    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1133    /**
1134     * Broadcast Action: Sent after the screen turns on.
1135     *
1136     * <p class="note">This is a protected intent that can only be sent
1137     * by the system.
1138     */
1139    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1140    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1141
1142    /**
1143     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1144     * keyguard is gone).
1145     *
1146     * <p class="note">This is a protected intent that can only be sent
1147     * by the system.
1148     */
1149    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1150    public static final String ACTION_USER_PRESENT= "android.intent.action.USER_PRESENT";
1151
1152    /**
1153     * Broadcast Action: The current time has changed.  Sent every
1154     * minute.  You can <em>not</em> receive this through components declared
1155     * in manifests, only by exlicitly registering for it with
1156     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1157     * Context.registerReceiver()}.
1158     *
1159     * <p class="note">This is a protected intent that can only be sent
1160     * by the system.
1161     */
1162    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1163    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1164    /**
1165     * Broadcast Action: The time was set.
1166     */
1167    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1168    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1169    /**
1170     * Broadcast Action: The date has changed.
1171     */
1172    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1173    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1174    /**
1175     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1176     * <ul>
1177     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1178     * </ul>
1179     *
1180     * <p class="note">This is a protected intent that can only be sent
1181     * by the system.
1182     */
1183    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1184    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1185    /**
1186     * Alarm Changed Action: This is broadcast when the AlarmClock
1187     * application's alarm is set or unset.  It is used by the
1188     * AlarmClock application and the StatusBar service.
1189     * @hide
1190     */
1191    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1192    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1193    /**
1194     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1195     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1196     * @hide
1197     */
1198    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1199    public static final String ACTION_SYNC_STATE_CHANGED
1200            = "android.intent.action.SYNC_STATE_CHANGED";
1201    /**
1202     * Broadcast Action: This is broadcast once, after the system has finished
1203     * booting.  It can be used to perform application-specific initialization,
1204     * such as installing alarms.  You must hold the
1205     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1206     * in order to receive this broadcast.
1207     *
1208     * <p class="note">This is a protected intent that can only be sent
1209     * by the system.
1210     */
1211    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1212    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1213    /**
1214     * Broadcast Action: This is broadcast when a user action should request a
1215     * temporary system dialog to dismiss.  Some examples of temporary system
1216     * dialogs are the notification window-shade and the recent tasks dialog.
1217     */
1218    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1219    /**
1220     * Broadcast Action: Trigger the download and eventual installation
1221     * of a package.
1222     * <p>Input: {@link #getData} is the URI of the package file to download.
1223     *
1224     * <p class="note">This is a protected intent that can only be sent
1225     * by the system.
1226     */
1227    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1228    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1229    /**
1230     * Broadcast Action: A new application package has been installed on the
1231     * device. The data contains the name of the package.  Note that the
1232     * newly installed package does <em>not</em> receive this broadcast.
1233     * <p>My include the following extras:
1234     * <ul>
1235     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1236     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1237     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1238     * </ul>
1239     *
1240     * <p class="note">This is a protected intent that can only be sent
1241     * by the system.
1242     */
1243    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1244    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1245    /**
1246     * Broadcast Action: A new version of an application package has been
1247     * installed, replacing an existing version that was previously installed.
1248     * The data contains the name of the package.
1249     * <p>My include the following extras:
1250     * <ul>
1251     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1252     * </ul>
1253     *
1254     * <p class="note">This is a protected intent that can only be sent
1255     * by the system.
1256     */
1257    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1258    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1259    /**
1260     * Broadcast Action: An existing application package has been removed from
1261     * the device.  The data contains the name of the package.  The package
1262     * that is being installed does <em>not</em> receive this Intent.
1263     * <ul>
1264     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1265     * to the package.
1266     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1267     * application -- data and code -- is being removed.
1268     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1269     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same 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_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1277    /**
1278     * Broadcast Action: An existing application package has been changed (e.g.
1279     * a component has been enabled or disabled).  The data contains the name of
1280     * the package.
1281     * <ul>
1282     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1283     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST} containing the class name
1284     * of the changed components.
1285     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the
1286     * default action of restarting the application.
1287     * </ul>
1288     *
1289     * <p class="note">This is a protected intent that can only be sent
1290     * by the system.
1291     */
1292    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1293    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1294    /**
1295     * Broadcast Action: The user has restarted a package, and all of its
1296     * processes have been killed.  All runtime state
1297     * associated with it (processes, alarms, notifications, etc) should
1298     * be removed.  Note that the restarted package does <em>not</em>
1299     * receive this broadcast.
1300     * The data contains the name of the package.
1301     * <ul>
1302     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1303     * </ul>
1304     *
1305     * <p class="note">This is a protected intent that can only be sent
1306     * by the system.
1307     */
1308    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1309    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1310    /**
1311     * Broadcast Action: The user has cleared the data of a package.  This should
1312     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1313     * its persistent data is erased and this broadcast sent.
1314     * Note that the cleared package does <em>not</em>
1315     * receive this broadcast. The data contains the name of the package.
1316     * <ul>
1317     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1318     * </ul>
1319     *
1320     * <p class="note">This is a protected intent that can only be sent
1321     * by the system.
1322     */
1323    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1324    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1325    /**
1326     * Broadcast Action: A user ID has been removed from the system.  The user
1327     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1328     *
1329     * <p class="note">This is a protected intent that can only be sent
1330     * by the system.
1331     */
1332    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1333    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1334    /**
1335     * Broadcast Action:  The current system wallpaper has changed.  See
1336     * {@link android.app.WallpaperManager} for retrieving the new wallpaper.
1337     */
1338    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1339    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1340    /**
1341     * Broadcast Action: The current device {@link android.content.res.Configuration}
1342     * (orientation, locale, etc) has changed.  When such a change happens, the
1343     * UIs (view hierarchy) will need to be rebuilt based on this new
1344     * information; for the most part, applications don't need to worry about
1345     * this, because the system will take care of stopping and restarting the
1346     * application to make sure it sees the new changes.  Some system code that
1347     * can not be restarted will need to watch for this action and handle it
1348     * appropriately.
1349     *
1350     * <p class="note">
1351     * You can <em>not</em> receive this through components declared
1352     * in manifests, only by explicitly registering for it with
1353     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1354     * Context.registerReceiver()}.
1355     *
1356     * <p class="note">This is a protected intent that can only be sent
1357     * by the system.
1358     *
1359     * @see android.content.res.Configuration
1360     */
1361    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1362    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1363    /**
1364     * Broadcast Action: The current device's locale has changed.
1365     *
1366     * <p class="note">This is a protected intent that can only be sent
1367     * by the system.
1368     */
1369    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1370    public static final String ACTION_LOCALE_CHANGED = "android.intent.action.LOCALE_CHANGED";
1371    /**
1372     * Broadcast Action:  This is a <em>sticky broadcast</em> containing the
1373     * charging state, level, and other information about the battery.
1374     * See {@link android.os.BatteryManager} for documentation on the
1375     * contents of the Intent.
1376     *
1377     * <p class="note">
1378     * You can <em>not</em> receive this through components declared
1379     * in manifests, only by explicitly registering for it with
1380     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1381     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1382     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1383     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1384     * broadcasts that are sent and can be received through manifest
1385     * receivers.
1386     *
1387     * <p class="note">This is a protected intent that can only be sent
1388     * by the system.
1389     */
1390    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1391    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1392    /**
1393     * Broadcast Action:  Indicates low battery condition on the device.
1394     * This broadcast corresponds to the "Low battery warning" system dialog.
1395     *
1396     * <p class="note">This is a protected intent that can only be sent
1397     * by the system.
1398     */
1399    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1400    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1401    /**
1402     * Broadcast Action:  Indicates the battery is now okay after being low.
1403     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1404     * gone back up to an okay state.
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_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1411    /**
1412     * Broadcast Action:  External power has been connected to the device.
1413     * This is intended for applications that wish to register specifically to this notification.
1414     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1415     * stay active to receive this notification.  This action can be used to implement actions
1416     * that wait until power is available to trigger.
1417     *
1418     * <p class="note">This is a protected intent that can only be sent
1419     * by the system.
1420     */
1421    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1422    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1423    /**
1424     * Broadcast Action:  External power has been removed from the device.
1425     * This is intended for applications that wish to register specifically to this notification.
1426     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1427     * stay active to receive this notification.  This action can be used to implement actions
1428     * that wait until power is available to trigger.
1429     *
1430     * <p class="note">This is a protected intent that can only be sent
1431     * by the system.
1432     */
1433    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1434    public static final String ACTION_POWER_DISCONNECTED =
1435            "android.intent.action.ACTION_POWER_DISCONNECTED";
1436    /**
1437     * Broadcast Action:  Device is shutting down.
1438     * This is broadcast when the device is being shut down (completely turned
1439     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1440     * will proceed and all unsaved data lost.  Apps will not normally need
1441     * to handle this, since the foreground activity will be paused as well.
1442     *
1443     * <p class="note">This is a protected intent that can only be sent
1444     * by the system.
1445     */
1446    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1447    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1448    /**
1449     * Activity Action:  Start this activity to request system shutdown.
1450     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1451     * to request confirmation from the user before shutting down.
1452     *
1453     * <p class="note">This is a protected intent that can only be sent
1454     * by the system.
1455     *
1456     * {@hide}
1457     */
1458    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1459    /**
1460     * Broadcast Action:  A sticky broadcast that indicates low memory
1461     * condition on the device
1462     *
1463     * <p class="note">This is a protected intent that can only be sent
1464     * by the system.
1465     */
1466    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1467    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1468    /**
1469     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1470     *
1471     * <p class="note">This is a protected intent that can only be sent
1472     * by the system.
1473     */
1474    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1475    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1476    /**
1477     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1478     * and package management should be started.
1479     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1480     * notification.
1481     */
1482    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1483    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1484    /**
1485     * Broadcast Action:  The device has entered USB Mass Storage mode.
1486     * This is used mainly for the USB Settings panel.
1487     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1488     * when the SD card file system is mounted or unmounted
1489     */
1490    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1491    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1492
1493    /**
1494     * Broadcast Action:  The device has exited USB Mass Storage mode.
1495     * This is used mainly for the USB Settings panel.
1496     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1497     * when the SD card file system is mounted or unmounted
1498     */
1499    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1500    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1501
1502    /**
1503     * Broadcast Action:  External media has been removed.
1504     * The path to the mount point for the removed media is contained in the Intent.mData field.
1505     */
1506    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1507    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1508
1509    /**
1510     * Broadcast Action:  External media is present, but not mounted at its mount point.
1511     * The path to the mount point for the removed media is contained in the Intent.mData field.
1512     */
1513    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1514    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1515
1516    /**
1517     * Broadcast Action:  External media is present, and being disk-checked
1518     * The path to the mount point for the checking media is contained in the Intent.mData field.
1519     */
1520    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1521    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1522
1523    /**
1524     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1525     * The path to the mount point for the checking media is contained in the Intent.mData field.
1526     */
1527    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1528    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1529
1530    /**
1531     * Broadcast Action:  External media is present and mounted at its mount point.
1532     * The path to the mount point for the removed media is contained in the Intent.mData field.
1533     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1534     * media was mounted read only.
1535     */
1536    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1537    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1538
1539    /**
1540     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1541     * The path to the mount point for the removed media is contained in the Intent.mData field.
1542     */
1543    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1544    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1545
1546    /**
1547     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1548     * The path to the mount point for the removed media is contained in the Intent.mData field.
1549     */
1550    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1551    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1552
1553    /**
1554     * Broadcast Action:  External media is present but cannot be mounted.
1555     * The path to the mount point for the removed media is contained in the Intent.mData field.
1556     */
1557    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1558    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1559
1560   /**
1561     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1562     * Applications should close all files they have open within the mount point when they receive this intent.
1563     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1564     */
1565    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1566    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1567
1568    /**
1569     * Broadcast Action:  The media scanner has started scanning a directory.
1570     * The path to the directory being scanned is contained in the Intent.mData field.
1571     */
1572    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1573    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1574
1575   /**
1576     * Broadcast Action:  The media scanner has finished scanning a directory.
1577     * The path to the scanned directory is contained in the Intent.mData field.
1578     */
1579    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1580    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1581
1582   /**
1583     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1584     * The path to the file is contained in the Intent.mData field.
1585     */
1586    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1587    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1588
1589   /**
1590     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1591     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1592     * caused the broadcast.
1593     */
1594    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1595    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1596
1597    /**
1598     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1599     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1600     * caused the broadcast.
1601     */
1602    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1603    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1604
1605    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1606    // location; they are not general-purpose actions.
1607
1608    /**
1609     * Broadcast Action: An GTalk connection has been established.
1610     */
1611    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1612    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1613            "android.intent.action.GTALK_CONNECTED";
1614
1615    /**
1616     * Broadcast Action: An GTalk connection has been disconnected.
1617     */
1618    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1619    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1620            "android.intent.action.GTALK_DISCONNECTED";
1621
1622    /**
1623     * Broadcast Action: An input method has been changed.
1624     */
1625    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1626    public static final String ACTION_INPUT_METHOD_CHANGED =
1627            "android.intent.action.INPUT_METHOD_CHANGED";
1628
1629    /**
1630     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1631     * more radios have been turned off or on. The intent will have the following extra value:</p>
1632     * <ul>
1633     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1634     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1635     *   turned off</li>
1636     * </ul>
1637     *
1638     * <p class="note">This is a protected intent that can only be sent
1639     * by the system.
1640     */
1641    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1642    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1643
1644    /**
1645     * Broadcast Action: Some content providers have parts of their namespace
1646     * where they publish new events or items that the user may be especially
1647     * interested in. For these things, they may broadcast this action when the
1648     * set of interesting items change.
1649     *
1650     * For example, GmailProvider sends this notification when the set of unread
1651     * mail in the inbox changes.
1652     *
1653     * <p>The data of the intent identifies which part of which provider
1654     * changed. When queried through the content resolver, the data URI will
1655     * return the data set in question.
1656     *
1657     * <p>The intent will have the following extra values:
1658     * <ul>
1659     *   <li><em>count</em> - The number of items in the data set. This is the
1660     *       same as the number of items in the cursor returned by querying the
1661     *       data URI. </li>
1662     * </ul>
1663     *
1664     * This intent will be sent at boot (if the count is non-zero) and when the
1665     * data set changes. It is possible for the data set to change without the
1666     * count changing (for example, if a new unread message arrives in the same
1667     * sync operation in which a message is archived). The phone should still
1668     * ring/vibrate/etc as normal in this case.
1669     */
1670    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1671    public static final String ACTION_PROVIDER_CHANGED =
1672            "android.intent.action.PROVIDER_CHANGED";
1673
1674    /**
1675     * Broadcast Action: Wired Headset plugged in or unplugged.
1676     *
1677     * <p>The intent will have the following extra values:
1678     * <ul>
1679     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1680     *   <li><em>name</em> - Headset type, human readable string </li>
1681     *   <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li>
1682     * </ul>
1683     * </ul>
1684     */
1685    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1686    public static final String ACTION_HEADSET_PLUG =
1687            "android.intent.action.HEADSET_PLUG";
1688
1689    /**
1690     * Broadcast Action: An outgoing call is about to be placed.
1691     *
1692     * <p>The Intent will have the following extra value:
1693     * <ul>
1694     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1695     *       the phone number originally intended to be dialed.</li>
1696     * </ul>
1697     * <p>Once the broadcast is finished, the resultData is used as the actual
1698     * number to call.  If  <code>null</code>, no call will be placed.</p>
1699     * <p>It is perfectly acceptable for multiple receivers to process the
1700     * outgoing call in turn: for example, a parental control application
1701     * might verify that the user is authorized to place the call at that
1702     * time, then a number-rewriting application might add an area code if
1703     * one was not specified.</p>
1704     * <p>For consistency, any receiver whose purpose is to prohibit phone
1705     * calls should have a priority of 0, to ensure it will see the final
1706     * phone number to be dialed.
1707     * Any receiver whose purpose is to rewrite phone numbers to be called
1708     * should have a positive priority.
1709     * Negative priorities are reserved for the system for this broadcast;
1710     * using them may cause problems.</p>
1711     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1712     * abort the broadcast.</p>
1713     * <p>Emergency calls cannot be intercepted using this mechanism, and
1714     * other calls cannot be modified to call emergency numbers using this
1715     * mechanism.
1716     * <p>You must hold the
1717     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1718     * permission to receive this Intent.</p>
1719     *
1720     * <p class="note">This is a protected intent that can only be sent
1721     * by the system.
1722     */
1723    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1724    public static final String ACTION_NEW_OUTGOING_CALL =
1725            "android.intent.action.NEW_OUTGOING_CALL";
1726
1727    /**
1728     * Broadcast Action: Have the device reboot.  This is only for use by
1729     * system code.
1730     *
1731     * <p class="note">This is a protected intent that can only be sent
1732     * by the system.
1733     */
1734    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1735    public static final String ACTION_REBOOT =
1736            "android.intent.action.REBOOT";
1737
1738    /**
1739     * Broadcast Action:  A sticky broadcast indicating the phone was docked
1740     * or undocked.  Includes the extra
1741     * field {@link #EXTRA_DOCK_STATE}, containing the current dock state.
1742     * This is intended for monitoring the current dock state.
1743     * To launch an activity from a dock state change, use {@link #CATEGORY_CAR_DOCK}
1744     * or {@link #CATEGORY_DESK_DOCK} instead.
1745     */
1746    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1747    public static final String ACTION_DOCK_EVENT =
1748            "android.intent.action.DOCK_EVENT";
1749
1750    /**
1751     * Broadcast Action: a remote intent is to be broadcasted.
1752     *
1753     * A remote intent is used for remote RPC between devices. The remote intent
1754     * is serialized and sent from one device to another device. The receiving
1755     * device parses the remote intent and broadcasts it. Note that anyone can
1756     * broadcast a remote intent. However, if the intent receiver of the remote intent
1757     * does not trust intent broadcasts from arbitrary intent senders, it should require
1758     * the sender to hold certain permissions so only trusted sender's broadcast will be
1759     * let through.
1760     * @hide
1761     */
1762    public static final String ACTION_REMOTE_INTENT =
1763            "android.intent.action.REMOTE_INTENT";
1764
1765    /**
1766     * Broadcast Action: hook for permforming cleanup after a system update.
1767     *
1768     * The broadcast is sent when the system is booting, before the
1769     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1770     * image.  A receiver for this should do its work and then disable itself
1771     * so that it does not get run again at the next boot.
1772     * @hide
1773     */
1774    public static final String ACTION_PRE_BOOT_COMPLETED =
1775            "android.intent.action.PRE_BOOT_COMPLETED";
1776
1777    // ---------------------------------------------------------------------
1778    // ---------------------------------------------------------------------
1779    // Standard intent categories (see addCategory()).
1780
1781    /**
1782     * Set if the activity should be an option for the default action
1783     * (center press) to perform on a piece of data.  Setting this will
1784     * hide from the user any activities without it set when performing an
1785     * action on some data.  Note that this is normal -not- set in the
1786     * Intent when initiating an action -- it is for use in intent filters
1787     * specified in packages.
1788     */
1789    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1790    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1791    /**
1792     * Activities that can be safely invoked from a browser must support this
1793     * category.  For example, if the user is viewing a web page or an e-mail
1794     * and clicks on a link in the text, the Intent generated execute that
1795     * link will require the BROWSABLE category, so that only activities
1796     * supporting this category will be considered as possible actions.  By
1797     * supporting this category, you are promising that there is nothing
1798     * damaging (without user intervention) that can happen by invoking any
1799     * matching Intent.
1800     */
1801    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1802    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1803    /**
1804     * Set if the activity should be considered as an alternative action to
1805     * the data the user is currently viewing.  See also
1806     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1807     * applies to the selection in a list of items.
1808     *
1809     * <p>Supporting this category means that you would like your activity to be
1810     * displayed in the set of alternative things the user can do, usually as
1811     * part of the current activity's options menu.  You will usually want to
1812     * include a specific label in the &lt;intent-filter&gt; of this action
1813     * describing to the user what it does.
1814     *
1815     * <p>The action of IntentFilter with this category is important in that it
1816     * describes the specific action the target will perform.  This generally
1817     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1818     * a specific name such as "com.android.camera.action.CROP.  Only one
1819     * alternative of any particular action will be shown to the user, so using
1820     * a specific action like this makes sure that your alternative will be
1821     * displayed while also allowing other applications to provide their own
1822     * overrides of that particular action.
1823     */
1824    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1825    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1826    /**
1827     * Set if the activity should be considered as an alternative selection
1828     * action to the data the user has currently selected.  This is like
1829     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1830     * of items from which the user can select, giving them alternatives to the
1831     * default action that will be performed on it.
1832     */
1833    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1834    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1835    /**
1836     * Intended to be used as a tab inside of an containing TabActivity.
1837     */
1838    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1839    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1840    /**
1841     * Should be displayed in the top-level launcher.
1842     */
1843    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1844    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1845    /**
1846     * Provides information about the package it is in; typically used if
1847     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1848     * a front-door to the user without having to be shown in the all apps list.
1849     */
1850    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1851    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1852    /**
1853     * This is the home activity, that is the first activity that is displayed
1854     * when the device boots.
1855     */
1856    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1857    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1858    /**
1859     * This activity is a preference panel.
1860     */
1861    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1862    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1863    /**
1864     * This activity is a development preference panel.
1865     */
1866    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1867    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1868    /**
1869     * Capable of running inside a parent activity container.
1870     */
1871    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1872    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1873    /**
1874     * This activity may be exercised by the monkey or other automated test tools.
1875     */
1876    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1877    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1878    /**
1879     * To be used as a test (not part of the normal user experience).
1880     */
1881    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1882    /**
1883     * To be used as a unit test (run through the Test Harness).
1884     */
1885    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1886    /**
1887     * To be used as an sample code example (not part of the normal user
1888     * experience).
1889     */
1890    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1891    /**
1892     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1893     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1894     * when queried, though it is allowable for those columns to be blank.
1895     */
1896    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1897    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1898
1899    /**
1900     * To be used as code under test for framework instrumentation tests.
1901     */
1902    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1903            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1904    /**
1905     * An activity to run when device is inserted into a car dock.
1906     * Used with {@link #ACTION_MAIN} to launch an activity.
1907     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1908     */
1909    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1910    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
1911    /**
1912     * An activity to run when device is inserted into a car dock.
1913     * Used with {@link #ACTION_MAIN} to launch an activity.
1914     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1915     */
1916    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1917    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
1918
1919    // ---------------------------------------------------------------------
1920    // ---------------------------------------------------------------------
1921    // Standard extra data keys.
1922
1923    /**
1924     * The initial data to place in a newly created record.  Use with
1925     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1926     * fields as would be given to the underlying ContentProvider.insert()
1927     * call.
1928     */
1929    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1930
1931    /**
1932     * A constant CharSequence that is associated with the Intent, used with
1933     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1934     * this may be a styled CharSequence, so you must use
1935     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1936     * retrieve it.
1937     */
1938    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1939
1940    /**
1941     * A content: URI holding a stream of data associated with the Intent,
1942     * used with {@link #ACTION_SEND} to supply the data being sent.
1943     */
1944    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1945
1946    /**
1947     * A String[] holding e-mail addresses that should be delivered to.
1948     */
1949    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1950
1951    /**
1952     * A String[] holding e-mail addresses that should be carbon copied.
1953     */
1954    public static final String EXTRA_CC       = "android.intent.extra.CC";
1955
1956    /**
1957     * A String[] holding e-mail addresses that should be blind carbon copied.
1958     */
1959    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1960
1961    /**
1962     * A constant string holding the desired subject line of a message.
1963     */
1964    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1965
1966    /**
1967     * An Intent describing the choices you would like shown with
1968     * {@link #ACTION_PICK_ACTIVITY}.
1969     */
1970    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1971
1972    /**
1973     * A CharSequence dialog title to provide to the user when used with a
1974     * {@link #ACTION_CHOOSER}.
1975     */
1976    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1977
1978    /**
1979     * A Parcelable[] of {@link Intent} or
1980     * {@link android.content.pm.LabeledIntent} objects as set with
1981     * {@link #putExtra(String, Parcelable[])} of additional activities to place
1982     * a the front of the list of choices, when shown to the user with a
1983     * {@link #ACTION_CHOOSER}.
1984     */
1985    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
1986
1987    /**
1988     * A {@link android.view.KeyEvent} object containing the event that
1989     * triggered the creation of the Intent it is in.
1990     */
1991    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1992
1993    /**
1994     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
1995     * before shutting down.
1996     *
1997     * {@hide}
1998     */
1999    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
2000
2001    /**
2002     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2003     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
2004     * of restarting the application.
2005     */
2006    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
2007
2008    /**
2009     * A String holding the phone number originally entered in
2010     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
2011     * number to call in a {@link android.content.Intent#ACTION_CALL}.
2012     */
2013    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
2014    /**
2015     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
2016     * intents to supply the uid the package had been assigned.  Also an optional
2017     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2018     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2019     * purpose.
2020     */
2021    public static final String EXTRA_UID = "android.intent.extra.UID";
2022
2023    /**
2024     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2025     * intents to indicate whether this represents a full uninstall (removing
2026     * both the code and its data) or a partial uninstall (leaving its data,
2027     * implying that this is an update).
2028     */
2029    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2030
2031    /**
2032     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2033     * intents to indicate that this is a replacement of the package, so this
2034     * broadcast will immediately be followed by an add broadcast for a
2035     * different version of the same package.
2036     */
2037    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2038
2039    /**
2040     * Used as an int extra field in {@link android.app.AlarmManager} intents
2041     * to tell the application being invoked how many pending alarms are being
2042     * delievered with the intent.  For one-shot alarms this will always be 1.
2043     * For recurring alarms, this might be greater than 1 if the device was
2044     * asleep or powered off at the time an earlier alarm would have been
2045     * delivered.
2046     */
2047    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2048
2049    /**
2050     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2051     * intents to request the dock state.  Possible values are
2052     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2053     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2054     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
2055     */
2056    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2057
2058    /**
2059     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2060     * to represent that the phone is not in any dock.
2061     */
2062    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2063
2064    /**
2065     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2066     * to represent that the phone is in a desk dock.
2067     */
2068    public static final int EXTRA_DOCK_STATE_DESK = 1;
2069
2070    /**
2071     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2072     * to represent that the phone is in a car dock.
2073     */
2074    public static final int EXTRA_DOCK_STATE_CAR = 2;
2075
2076    /**
2077     * Boolean that can be supplied as meta-data with a dock activity, to
2078     * indicate that the dock should take over the home key when it is active.
2079     */
2080    public static final String METADATA_DOCK_HOME = "android.dock_home";
2081
2082    /**
2083     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2084     * the bug report.
2085     *
2086     * @hide
2087     */
2088    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2089
2090    /**
2091     * Used as a string extra field when sending an intent to PackageInstaller to install a
2092     * package. Specifies the installer package name; this package will receive the
2093     * {@link #ACTION_APP_ERROR} intent.
2094     *
2095     * @hide
2096     */
2097    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2098            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2099
2100    /**
2101     * Used in the extra field in the remote intent. It's astring token passed with the
2102     * remote intent.
2103     */
2104    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2105            "android.intent.extra.remote_intent_token";
2106
2107    /**
2108     * @deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
2109     * will contain only the first name in the list.
2110     */
2111    @Deprecated public static final String EXTRA_CHANGED_COMPONENT_NAME =
2112            "android.intent.extra.changed_component_name";
2113
2114    /**
2115     * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED}
2116     * and contains a string array of all of the components that have changed.
2117     */
2118    public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
2119            "android.intent.extra.changed_component_name_list";
2120
2121    /**
2122     * @hide
2123     * Magic extra system code can use when binding, to give a label for
2124     * who it is that has bound to a service.  This is an integer giving
2125     * a framework string resource that can be displayed to the user.
2126     */
2127    public static final String EXTRA_CLIENT_LABEL =
2128            "android.intent.extra.client_label";
2129
2130    /**
2131     * @hide
2132     * Magic extra system code can use when binding, to give a PendingIntent object
2133     * that can be launched for the user to disable the system's use of this
2134     * service.
2135     */
2136    public static final String EXTRA_CLIENT_INTENT =
2137            "android.intent.extra.client_intent";
2138
2139    // ---------------------------------------------------------------------
2140    // ---------------------------------------------------------------------
2141    // Intent flags (see mFlags variable).
2142
2143    /**
2144     * If set, the recipient of this Intent will be granted permission to
2145     * perform read operations on the Uri in the Intent's data.
2146     */
2147    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2148    /**
2149     * If set, the recipient of this Intent will be granted permission to
2150     * perform write operations on the Uri in the Intent's data.
2151     */
2152    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2153    /**
2154     * Can be set by the caller to indicate that this Intent is coming from
2155     * a background operation, not from direct user interaction.
2156     */
2157    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2158    /**
2159     * A flag you can enable for debugging: when set, log messages will be
2160     * printed during the resolution of this intent to show you what has
2161     * been found to create the final resolved list.
2162     */
2163    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2164
2165    /**
2166     * If set, the new activity is not kept in the history stack.  As soon as
2167     * the user navigates away from it, the activity is finished.  This may also
2168     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2169     * noHistory} attribute.
2170     */
2171    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2172    /**
2173     * If set, the activity will not be launched if it is already running
2174     * at the top of the history stack.
2175     */
2176    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2177    /**
2178     * If set, this activity will become the start of a new task on this
2179     * history stack.  A task (from the activity that started it to the
2180     * next task activity) defines an atomic group of activities that the
2181     * user can move to.  Tasks can be moved to the foreground and background;
2182     * all of the activities inside of a particular task always remain in
2183     * the same order.  See
2184     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2185     * Activities and Tasks</a> for more details on tasks.
2186     *
2187     * <p>This flag is generally used by activities that want
2188     * to present a "launcher" style behavior: they give the user a list of
2189     * separate things that can be done, which otherwise run completely
2190     * independently of the activity launching them.
2191     *
2192     * <p>When using this flag, if a task is already running for the activity
2193     * you are now starting, then a new activity will not be started; instead,
2194     * the current task will simply be brought to the front of the screen with
2195     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2196     * to disable this behavior.
2197     *
2198     * <p>This flag can not be used when the caller is requesting a result from
2199     * the activity being launched.
2200     */
2201    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2202    /**
2203     * <strong>Do not use this flag unless you are implementing your own
2204     * top-level application launcher.</strong>  Used in conjunction with
2205     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2206     * behavior of bringing an existing task to the foreground.  When set,
2207     * a new task is <em>always</em> started to host the Activity for the
2208     * Intent, regardless of whether there is already an existing task running
2209     * the same thing.
2210     *
2211     * <p><strong>Because the default system does not include graphical task management,
2212     * you should not use this flag unless you provide some way for a user to
2213     * return back to the tasks you have launched.</strong>
2214     *
2215     * <p>This flag is ignored if
2216     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2217     *
2218     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2219     * Activities and Tasks</a> for more details on tasks.
2220     */
2221    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2222    /**
2223     * If set, and the activity being launched is already running in the
2224     * current task, then instead of launching a new instance of that activity,
2225     * all of the other activities on top of it will be closed and this Intent
2226     * will be delivered to the (now on top) old activity as a new Intent.
2227     *
2228     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2229     * If D calls startActivity() with an Intent that resolves to the component
2230     * of activity B, then C and D will be finished and B receive the given
2231     * Intent, resulting in the stack now being: A, B.
2232     *
2233     * <p>The currently running instance of activity B in the above example will
2234     * either receive the new intent you are starting here in its
2235     * onNewIntent() method, or be itself finished and restarted with the
2236     * new intent.  If it has declared its launch mode to be "multiple" (the
2237     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2238     * the same intent, then it will be finished and re-created; for all other
2239     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2240     * Intent will be delivered to the current instance's onNewIntent().
2241     *
2242     * <p>This launch mode can also be used to good effect in conjunction with
2243     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2244     * of a task, it will bring any currently running instance of that task
2245     * to the foreground, and then clear it to its root state.  This is
2246     * especially useful, for example, when launching an activity from the
2247     * notification manager.
2248     *
2249     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2250     * Activities and Tasks</a> for more details on tasks.
2251     */
2252    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2253    /**
2254     * If set and this intent is being used to launch a new activity from an
2255     * existing one, then the reply target of the existing activity will be
2256     * transfered to the new activity.  This way the new activity can call
2257     * {@link android.app.Activity#setResult} and have that result sent back to
2258     * the reply target of the original activity.
2259     */
2260    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2261    /**
2262     * If set and this intent is being used to launch a new activity from an
2263     * existing one, the current activity will not be counted as the top
2264     * activity for deciding whether the new intent should be delivered to
2265     * the top instead of starting a new one.  The previous activity will
2266     * be used as the top, with the assumption being that the current activity
2267     * will finish itself immediately.
2268     */
2269    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2270    /**
2271     * If set, the new activity is not kept in the list of recently launched
2272     * activities.
2273     */
2274    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2275    /**
2276     * This flag is not normally set by application code, but set for you by
2277     * the system as described in the
2278     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2279     * launchMode} documentation for the singleTask mode.
2280     */
2281    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2282    /**
2283     * If set, and this activity is either being started in a new task or
2284     * bringing to the top an existing task, then it will be launched as
2285     * the front door of the task.  This will result in the application of
2286     * any affinities needed to have that task in the proper state (either
2287     * moving activities to or from it), or simply resetting that task to
2288     * its initial state if needed.
2289     */
2290    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2291    /**
2292     * This flag is not normally set by application code, but set for you by
2293     * the system if this activity is being launched from history
2294     * (longpress home key).
2295     */
2296    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2297    /**
2298     * If set, this marks a point in the task's activity stack that should
2299     * be cleared when the task is reset.  That is, the next time the task
2300     * is brought to the foreground with
2301     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2302     * the user re-launching it from home), this activity and all on top of
2303     * it will be finished so that the user does not return to them, but
2304     * instead returns to whatever activity preceeded it.
2305     *
2306     * <p>This is useful for cases where you have a logical break in your
2307     * application.  For example, an e-mail application may have a command
2308     * to view an attachment, which launches an image view activity to
2309     * display it.  This activity should be part of the e-mail application's
2310     * task, since it is a part of the task the user is involved in.  However,
2311     * if the user leaves that task, and later selects the e-mail app from
2312     * home, we may like them to return to the conversation they were
2313     * viewing, not the picture attachment, since that is confusing.  By
2314     * setting this flag when launching the image viewer, that viewer and
2315     * any activities it starts will be removed the next time the user returns
2316     * to mail.
2317     */
2318    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2319    /**
2320     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2321     * callback from occurring on the current frontmost activity before it is
2322     * paused as the newly-started activity is brought to the front.
2323     *
2324     * <p>Typically, an activity can rely on that callback to indicate that an
2325     * explicit user action has caused their activity to be moved out of the
2326     * foreground. The callback marks an appropriate point in the activity's
2327     * lifecycle for it to dismiss any notifications that it intends to display
2328     * "until the user has seen them," such as a blinking LED.
2329     *
2330     * <p>If an activity is ever started via any non-user-driven events such as
2331     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2332     * Context#startActivity Context.startActivity}, ensuring that the pausing
2333     * activity does not think the user has acknowledged its notification.
2334     */
2335    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2336    /**
2337     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2338     * this flag will cause the launched activity to be brought to the front of its
2339     * task's history stack if it is already running.
2340     *
2341     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2342     * If D calls startActivity() with an Intent that resolves to the component
2343     * of activity B, then B will be brought to the front of the history stack,
2344     * with this resulting order:  A, C, D, B.
2345     *
2346     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2347     * specified.
2348     */
2349    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2350    /**
2351     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2352     * this flag will prevent the system from applying an activity transition
2353     * animation to go to the next activity state.  This doesn't mean an
2354     * animation will never run -- if another activity change happens that doesn't
2355     * specify this flag before the activity started here is displayed, then
2356     * that transition will be used.  This this flag can be put to good use
2357     * when you are going to do a series of activity operations but the
2358     * animation seen by the user shouldn't be driven by the first activity
2359     * change but rather a later one.
2360     */
2361    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
2362    /**
2363     * If set, when sending a broadcast only registered receivers will be
2364     * called -- no BroadcastReceiver components will be launched.
2365     */
2366    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2367    /**
2368     * If set, when sending a broadcast <i>before boot has completed</i> only
2369     * registered receivers will be called -- no BroadcastReceiver components
2370     * will be launched.  Sticky intent state will be recorded properly even
2371     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2372     * is specified in the broadcast intent, this flag is unnecessary.
2373     *
2374     * <p>This flag is only for use by system sevices as a convenience to
2375     * avoid having to implement a more complex mechanism around detection
2376     * of boot completion.
2377     *
2378     * @hide
2379     */
2380    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2381    /**
2382     * Set when this broadcast is for a boot upgrade, a special mode that
2383     * allows the broadcast to be sent before the system is ready and launches
2384     * the app process with no providers running in it.
2385     * @hide
2386     */
2387    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x10000000;
2388
2389    /**
2390     * @hide Flags that can't be changed with PendingIntent.
2391     */
2392    public static final int IMMUTABLE_FLAGS =
2393            FLAG_GRANT_READ_URI_PERMISSION
2394            | FLAG_GRANT_WRITE_URI_PERMISSION;
2395
2396    // ---------------------------------------------------------------------
2397    // ---------------------------------------------------------------------
2398    // toUri() and parseUri() options.
2399
2400    /**
2401     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2402     * always has the "intent:" scheme.  This syntax can be used when you want
2403     * to later disambiguate between URIs that are intended to describe an
2404     * Intent vs. all others that should be treated as raw URIs.  When used
2405     * with {@link #parseUri}, any other scheme will result in a generic
2406     * VIEW action for that raw URI.
2407     */
2408    public static final int URI_INTENT_SCHEME = 1<<0;
2409
2410    // ---------------------------------------------------------------------
2411
2412    private String mAction;
2413    private Uri mData;
2414    private String mType;
2415    private String mPackage;
2416    private ComponentName mComponent;
2417    private int mFlags;
2418    private HashSet<String> mCategories;
2419    private Bundle mExtras;
2420
2421    // ---------------------------------------------------------------------
2422
2423    /**
2424     * Create an empty intent.
2425     */
2426    public Intent() {
2427    }
2428
2429    /**
2430     * Copy constructor.
2431     */
2432    public Intent(Intent o) {
2433        this.mAction = o.mAction;
2434        this.mData = o.mData;
2435        this.mType = o.mType;
2436        this.mPackage = o.mPackage;
2437        this.mComponent = o.mComponent;
2438        this.mFlags = o.mFlags;
2439        if (o.mCategories != null) {
2440            this.mCategories = new HashSet<String>(o.mCategories);
2441        }
2442        if (o.mExtras != null) {
2443            this.mExtras = new Bundle(o.mExtras);
2444        }
2445    }
2446
2447    @Override
2448    public Object clone() {
2449        return new Intent(this);
2450    }
2451
2452    private Intent(Intent o, boolean all) {
2453        this.mAction = o.mAction;
2454        this.mData = o.mData;
2455        this.mType = o.mType;
2456        this.mPackage = o.mPackage;
2457        this.mComponent = o.mComponent;
2458        if (o.mCategories != null) {
2459            this.mCategories = new HashSet<String>(o.mCategories);
2460        }
2461    }
2462
2463    /**
2464     * Make a clone of only the parts of the Intent that are relevant for
2465     * filter matching: the action, data, type, component, and categories.
2466     */
2467    public Intent cloneFilter() {
2468        return new Intent(this, false);
2469    }
2470
2471    /**
2472     * Create an intent with a given action.  All other fields (data, type,
2473     * class) are null.  Note that the action <em>must</em> be in a
2474     * namespace because Intents are used globally in the system -- for
2475     * example the system VIEW action is android.intent.action.VIEW; an
2476     * application's custom action would be something like
2477     * com.google.app.myapp.CUSTOM_ACTION.
2478     *
2479     * @param action The Intent action, such as ACTION_VIEW.
2480     */
2481    public Intent(String action) {
2482        mAction = action;
2483    }
2484
2485    /**
2486     * Create an intent with a given action and for a given data url.  Note
2487     * that the action <em>must</em> be in a namespace because Intents are
2488     * used globally in the system -- for example the system VIEW action is
2489     * android.intent.action.VIEW; an application's custom action would be
2490     * something like com.google.app.myapp.CUSTOM_ACTION.
2491     *
2492     * <p><em>Note: scheme and host name matching in the Android framework is
2493     * case-sensitive, unlike the formal RFC.  As a result,
2494     * you should always ensure that you write your Uri with these elements
2495     * using lower case letters, and normalize any Uris you receive from
2496     * outside of Android to ensure the scheme and host is lower case.</em></p>
2497     *
2498     * @param action The Intent action, such as ACTION_VIEW.
2499     * @param uri The Intent data URI.
2500     */
2501    public Intent(String action, Uri uri) {
2502        mAction = action;
2503        mData = uri;
2504    }
2505
2506    /**
2507     * Create an intent for a specific component.  All other fields (action, data,
2508     * type, class) are null, though they can be modified later with explicit
2509     * calls.  This provides a convenient way to create an intent that is
2510     * intended to execute a hard-coded class name, rather than relying on the
2511     * system to find an appropriate class for you; see {@link #setComponent}
2512     * for more information on the repercussions of this.
2513     *
2514     * @param packageContext A Context of the application package implementing
2515     * this class.
2516     * @param cls The component class that is to be used for the intent.
2517     *
2518     * @see #setClass
2519     * @see #setComponent
2520     * @see #Intent(String, android.net.Uri , Context, Class)
2521     */
2522    public Intent(Context packageContext, Class<?> cls) {
2523        mComponent = new ComponentName(packageContext, cls);
2524    }
2525
2526    /**
2527     * Create an intent for a specific component with a specified action and data.
2528     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2529     * construct the Intent and then calling {@link #setClass} to set its
2530     * class.
2531     *
2532     * <p><em>Note: scheme and host name matching in the Android framework is
2533     * case-sensitive, unlike the formal RFC.  As a result,
2534     * you should always ensure that you write your Uri with these elements
2535     * using lower case letters, and normalize any Uris you receive from
2536     * outside of Android to ensure the scheme and host is lower case.</em></p>
2537     *
2538     * @param action The Intent action, such as ACTION_VIEW.
2539     * @param uri The Intent data URI.
2540     * @param packageContext A Context of the application package implementing
2541     * this class.
2542     * @param cls The component class that is to be used for the intent.
2543     *
2544     * @see #Intent(String, android.net.Uri)
2545     * @see #Intent(Context, Class)
2546     * @see #setClass
2547     * @see #setComponent
2548     */
2549    public Intent(String action, Uri uri,
2550            Context packageContext, Class<?> cls) {
2551        mAction = action;
2552        mData = uri;
2553        mComponent = new ComponentName(packageContext, cls);
2554    }
2555
2556    /**
2557     * Call {@link #parseUri} with 0 flags.
2558     * @deprecated Use {@link #parseUri} instead.
2559     */
2560    @Deprecated
2561    public static Intent getIntent(String uri) throws URISyntaxException {
2562        return parseUri(uri, 0);
2563    }
2564
2565    /**
2566     * Create an intent from a URI.  This URI may encode the action,
2567     * category, and other intent fields, if it was returned by
2568     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2569     * will be the entire URI and its action will be ACTION_VIEW.
2570     *
2571     * <p>The URI given here must not be relative -- that is, it must include
2572     * the scheme and full path.
2573     *
2574     * @param uri The URI to turn into an Intent.
2575     * @param flags Additional processing flags.  Either 0 or
2576     * {@link #URI_INTENT_SCHEME}.
2577     *
2578     * @return Intent The newly created Intent object.
2579     *
2580     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2581     * it bad (as parsed by the Uri class) or the Intent data within the
2582     * URI is invalid.
2583     *
2584     * @see #toUri
2585     */
2586    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2587        int i = 0;
2588        try {
2589            // Validate intent scheme for if requested.
2590            if ((flags&URI_INTENT_SCHEME) != 0) {
2591                if (!uri.startsWith("intent:")) {
2592                    Intent intent = new Intent(ACTION_VIEW);
2593                    try {
2594                        intent.setData(Uri.parse(uri));
2595                    } catch (IllegalArgumentException e) {
2596                        throw new URISyntaxException(uri, e.getMessage());
2597                    }
2598                    return intent;
2599                }
2600            }
2601
2602            // simple case
2603            i = uri.lastIndexOf("#");
2604            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2605
2606            // old format Intent URI
2607            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2608
2609            // new format
2610            Intent intent = new Intent(ACTION_VIEW);
2611
2612            // fetch data part, if present
2613            String data = i >= 0 ? uri.substring(0, i) : null;
2614            String scheme = null;
2615            i += "#Intent;".length();
2616
2617            // loop over contents of Intent, all name=value;
2618            while (!uri.startsWith("end", i)) {
2619                int eq = uri.indexOf('=', i);
2620                int semi = uri.indexOf(';', eq);
2621                String value = Uri.decode(uri.substring(eq + 1, semi));
2622
2623                // action
2624                if (uri.startsWith("action=", i)) {
2625                    intent.mAction = value;
2626                }
2627
2628                // categories
2629                else if (uri.startsWith("category=", i)) {
2630                    intent.addCategory(value);
2631                }
2632
2633                // type
2634                else if (uri.startsWith("type=", i)) {
2635                    intent.mType = value;
2636                }
2637
2638                // launch  flags
2639                else if (uri.startsWith("launchFlags=", i)) {
2640                    intent.mFlags = Integer.decode(value).intValue();
2641                }
2642
2643                // package
2644                else if (uri.startsWith("package=", i)) {
2645                    intent.mPackage = value;
2646                }
2647
2648                // component
2649                else if (uri.startsWith("component=", i)) {
2650                    intent.mComponent = ComponentName.unflattenFromString(value);
2651                }
2652
2653                // scheme
2654                else if (uri.startsWith("scheme=", i)) {
2655                    scheme = value;
2656                }
2657
2658                // extra
2659                else {
2660                    String key = Uri.decode(uri.substring(i + 2, eq));
2661                    // create Bundle if it doesn't already exist
2662                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2663                    Bundle b = intent.mExtras;
2664                    // add EXTRA
2665                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2666                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2667                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2668                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2669                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2670                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2671                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2672                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2673                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2674                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2675                }
2676
2677                // move to the next item
2678                i = semi + 1;
2679            }
2680
2681            if (data != null) {
2682                if (data.startsWith("intent:")) {
2683                    data = data.substring(7);
2684                    if (scheme != null) {
2685                        data = scheme + ':' + data;
2686                    }
2687                }
2688
2689                if (data.length() > 0) {
2690                    try {
2691                        intent.mData = Uri.parse(data);
2692                    } catch (IllegalArgumentException e) {
2693                        throw new URISyntaxException(uri, e.getMessage());
2694                    }
2695                }
2696            }
2697
2698            return intent;
2699
2700        } catch (IndexOutOfBoundsException e) {
2701            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2702        }
2703    }
2704
2705    public static Intent getIntentOld(String uri) throws URISyntaxException {
2706        Intent intent;
2707
2708        int i = uri.lastIndexOf('#');
2709        if (i >= 0) {
2710            String action = null;
2711            final int intentFragmentStart = i;
2712            boolean isIntentFragment = false;
2713
2714            i++;
2715
2716            if (uri.regionMatches(i, "action(", 0, 7)) {
2717                isIntentFragment = true;
2718                i += 7;
2719                int j = uri.indexOf(')', i);
2720                action = uri.substring(i, j);
2721                i = j + 1;
2722            }
2723
2724            intent = new Intent(action);
2725
2726            if (uri.regionMatches(i, "categories(", 0, 11)) {
2727                isIntentFragment = true;
2728                i += 11;
2729                int j = uri.indexOf(')', i);
2730                while (i < j) {
2731                    int sep = uri.indexOf('!', i);
2732                    if (sep < 0) sep = j;
2733                    if (i < sep) {
2734                        intent.addCategory(uri.substring(i, sep));
2735                    }
2736                    i = sep + 1;
2737                }
2738                i = j + 1;
2739            }
2740
2741            if (uri.regionMatches(i, "type(", 0, 5)) {
2742                isIntentFragment = true;
2743                i += 5;
2744                int j = uri.indexOf(')', i);
2745                intent.mType = uri.substring(i, j);
2746                i = j + 1;
2747            }
2748
2749            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2750                isIntentFragment = true;
2751                i += 12;
2752                int j = uri.indexOf(')', i);
2753                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2754                i = j + 1;
2755            }
2756
2757            if (uri.regionMatches(i, "component(", 0, 10)) {
2758                isIntentFragment = true;
2759                i += 10;
2760                int j = uri.indexOf(')', i);
2761                int sep = uri.indexOf('!', i);
2762                if (sep >= 0 && sep < j) {
2763                    String pkg = uri.substring(i, sep);
2764                    String cls = uri.substring(sep + 1, j);
2765                    intent.mComponent = new ComponentName(pkg, cls);
2766                }
2767                i = j + 1;
2768            }
2769
2770            if (uri.regionMatches(i, "extras(", 0, 7)) {
2771                isIntentFragment = true;
2772                i += 7;
2773
2774                final int closeParen = uri.indexOf(')', i);
2775                if (closeParen == -1) throw new URISyntaxException(uri,
2776                        "EXTRA missing trailing ')'", i);
2777
2778                while (i < closeParen) {
2779                    // fetch the key value
2780                    int j = uri.indexOf('=', i);
2781                    if (j <= i + 1 || i >= closeParen) {
2782                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2783                    }
2784                    char type = uri.charAt(i);
2785                    i++;
2786                    String key = uri.substring(i, j);
2787                    i = j + 1;
2788
2789                    // get type-value
2790                    j = uri.indexOf('!', i);
2791                    if (j == -1 || j >= closeParen) j = closeParen;
2792                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2793                    String value = uri.substring(i, j);
2794                    i = j;
2795
2796                    // create Bundle if it doesn't already exist
2797                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2798
2799                    // add item to bundle
2800                    try {
2801                        switch (type) {
2802                            case 'S':
2803                                intent.mExtras.putString(key, Uri.decode(value));
2804                                break;
2805                            case 'B':
2806                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2807                                break;
2808                            case 'b':
2809                                intent.mExtras.putByte(key, Byte.parseByte(value));
2810                                break;
2811                            case 'c':
2812                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2813                                break;
2814                            case 'd':
2815                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2816                                break;
2817                            case 'f':
2818                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2819                                break;
2820                            case 'i':
2821                                intent.mExtras.putInt(key, Integer.parseInt(value));
2822                                break;
2823                            case 'l':
2824                                intent.mExtras.putLong(key, Long.parseLong(value));
2825                                break;
2826                            case 's':
2827                                intent.mExtras.putShort(key, Short.parseShort(value));
2828                                break;
2829                            default:
2830                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2831                        }
2832                    } catch (NumberFormatException e) {
2833                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2834                    }
2835
2836                    char ch = uri.charAt(i);
2837                    if (ch == ')') break;
2838                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2839                    i++;
2840                }
2841            }
2842
2843            if (isIntentFragment) {
2844                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
2845            } else {
2846                intent.mData = Uri.parse(uri);
2847            }
2848
2849            if (intent.mAction == null) {
2850                // By default, if no action is specified, then use VIEW.
2851                intent.mAction = ACTION_VIEW;
2852            }
2853
2854        } else {
2855            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2856        }
2857
2858        return intent;
2859    }
2860
2861    /**
2862     * Retrieve the general action to be performed, such as
2863     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2864     * the information in the intent should be interpreted -- most importantly,
2865     * what to do with the data returned by {@link #getData}.
2866     *
2867     * @return The action of this intent or null if none is specified.
2868     *
2869     * @see #setAction
2870     */
2871    public String getAction() {
2872        return mAction;
2873    }
2874
2875    /**
2876     * Retrieve data this intent is operating on.  This URI specifies the name
2877     * of the data; often it uses the content: scheme, specifying data in a
2878     * content provider.  Other schemes may be handled by specific activities,
2879     * such as http: by the web browser.
2880     *
2881     * @return The URI of the data this intent is targeting or null.
2882     *
2883     * @see #getScheme
2884     * @see #setData
2885     */
2886    public Uri getData() {
2887        return mData;
2888    }
2889
2890    /**
2891     * The same as {@link #getData()}, but returns the URI as an encoded
2892     * String.
2893     */
2894    public String getDataString() {
2895        return mData != null ? mData.toString() : null;
2896    }
2897
2898    /**
2899     * Return the scheme portion of the intent's data.  If the data is null or
2900     * does not include a scheme, null is returned.  Otherwise, the scheme
2901     * prefix without the final ':' is returned, i.e. "http".
2902     *
2903     * <p>This is the same as calling getData().getScheme() (and checking for
2904     * null data).
2905     *
2906     * @return The scheme of this intent.
2907     *
2908     * @see #getData
2909     */
2910    public String getScheme() {
2911        return mData != null ? mData.getScheme() : null;
2912    }
2913
2914    /**
2915     * Retrieve any explicit MIME type included in the intent.  This is usually
2916     * null, as the type is determined by the intent data.
2917     *
2918     * @return If a type was manually set, it is returned; else null is
2919     *         returned.
2920     *
2921     * @see #resolveType(ContentResolver)
2922     * @see #setType
2923     */
2924    public String getType() {
2925        return mType;
2926    }
2927
2928    /**
2929     * Return the MIME data type of this intent.  If the type field is
2930     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2931     * the type of that data is returned.  If neither fields are set, a null is
2932     * returned.
2933     *
2934     * @return The MIME type of this intent.
2935     *
2936     * @see #getType
2937     * @see #resolveType(ContentResolver)
2938     */
2939    public String resolveType(Context context) {
2940        return resolveType(context.getContentResolver());
2941    }
2942
2943    /**
2944     * Return the MIME data type of this intent.  If the type field is
2945     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2946     * the type of that data is returned.  If neither fields are set, a null is
2947     * returned.
2948     *
2949     * @param resolver A ContentResolver that can be used to determine the MIME
2950     *                 type of the intent's data.
2951     *
2952     * @return The MIME type of this intent.
2953     *
2954     * @see #getType
2955     * @see #resolveType(Context)
2956     */
2957    public String resolveType(ContentResolver resolver) {
2958        if (mType != null) {
2959            return mType;
2960        }
2961        if (mData != null) {
2962            if ("content".equals(mData.getScheme())) {
2963                return resolver.getType(mData);
2964            }
2965        }
2966        return null;
2967    }
2968
2969    /**
2970     * Return the MIME data type of this intent, only if it will be needed for
2971     * intent resolution.  This is not generally useful for application code;
2972     * it is used by the frameworks for communicating with back-end system
2973     * services.
2974     *
2975     * @param resolver A ContentResolver that can be used to determine the MIME
2976     *                 type of the intent's data.
2977     *
2978     * @return The MIME type of this intent, or null if it is unknown or not
2979     *         needed.
2980     */
2981    public String resolveTypeIfNeeded(ContentResolver resolver) {
2982        if (mComponent != null) {
2983            return mType;
2984        }
2985        return resolveType(resolver);
2986    }
2987
2988    /**
2989     * Check if an category exists in the intent.
2990     *
2991     * @param category The category to check.
2992     *
2993     * @return boolean True if the intent contains the category, else false.
2994     *
2995     * @see #getCategories
2996     * @see #addCategory
2997     */
2998    public boolean hasCategory(String category) {
2999        return mCategories != null && mCategories.contains(category);
3000    }
3001
3002    /**
3003     * Return the set of all categories in the intent.  If there are no categories,
3004     * returns NULL.
3005     *
3006     * @return Set The set of categories you can examine.  Do not modify!
3007     *
3008     * @see #hasCategory
3009     * @see #addCategory
3010     */
3011    public Set<String> getCategories() {
3012        return mCategories;
3013    }
3014
3015    /**
3016     * Sets the ClassLoader that will be used when unmarshalling
3017     * any Parcelable values from the extras of this Intent.
3018     *
3019     * @param loader a ClassLoader, or null to use the default loader
3020     * at the time of unmarshalling.
3021     */
3022    public void setExtrasClassLoader(ClassLoader loader) {
3023        if (mExtras != null) {
3024            mExtras.setClassLoader(loader);
3025        }
3026    }
3027
3028    /**
3029     * Returns true if an extra value is associated with the given name.
3030     * @param name the extra's name
3031     * @return true if the given extra is present.
3032     */
3033    public boolean hasExtra(String name) {
3034        return mExtras != null && mExtras.containsKey(name);
3035    }
3036
3037    /**
3038     * Returns true if the Intent's extras contain a parcelled file descriptor.
3039     * @return true if the Intent contains a parcelled file descriptor.
3040     */
3041    public boolean hasFileDescriptors() {
3042        return mExtras != null && mExtras.hasFileDescriptors();
3043    }
3044
3045    /**
3046     * Retrieve extended data from the intent.
3047     *
3048     * @param name The name of the desired item.
3049     *
3050     * @return the value of an item that previously added with putExtra()
3051     * or null if none was found.
3052     *
3053     * @deprecated
3054     * @hide
3055     */
3056    @Deprecated
3057    public Object getExtra(String name) {
3058        return getExtra(name, null);
3059    }
3060
3061    /**
3062     * Retrieve extended data from the intent.
3063     *
3064     * @param name The name of the desired item.
3065     * @param defaultValue the value to be returned if no value of the desired
3066     * type is stored with the given name.
3067     *
3068     * @return the value of an item that previously added with putExtra()
3069     * or the default value if none was found.
3070     *
3071     * @see #putExtra(String, boolean)
3072     */
3073    public boolean getBooleanExtra(String name, boolean defaultValue) {
3074        return mExtras == null ? defaultValue :
3075            mExtras.getBoolean(name, defaultValue);
3076    }
3077
3078    /**
3079     * Retrieve extended data from the intent.
3080     *
3081     * @param name The name of the desired item.
3082     * @param defaultValue the value to be returned if no value of the desired
3083     * type is stored with the given name.
3084     *
3085     * @return the value of an item that previously added with putExtra()
3086     * or the default value if none was found.
3087     *
3088     * @see #putExtra(String, byte)
3089     */
3090    public byte getByteExtra(String name, byte defaultValue) {
3091        return mExtras == null ? defaultValue :
3092            mExtras.getByte(name, defaultValue);
3093    }
3094
3095    /**
3096     * Retrieve extended data from the intent.
3097     *
3098     * @param name The name of the desired item.
3099     * @param defaultValue the value to be returned if no value of the desired
3100     * type is stored with the given name.
3101     *
3102     * @return the value of an item that previously added with putExtra()
3103     * or the default value if none was found.
3104     *
3105     * @see #putExtra(String, short)
3106     */
3107    public short getShortExtra(String name, short defaultValue) {
3108        return mExtras == null ? defaultValue :
3109            mExtras.getShort(name, defaultValue);
3110    }
3111
3112    /**
3113     * Retrieve extended data from the intent.
3114     *
3115     * @param name The name of the desired item.
3116     * @param defaultValue the value to be returned if no value of the desired
3117     * type is stored with the given name.
3118     *
3119     * @return the value of an item that previously added with putExtra()
3120     * or the default value if none was found.
3121     *
3122     * @see #putExtra(String, char)
3123     */
3124    public char getCharExtra(String name, char defaultValue) {
3125        return mExtras == null ? defaultValue :
3126            mExtras.getChar(name, defaultValue);
3127    }
3128
3129    /**
3130     * Retrieve extended data from the intent.
3131     *
3132     * @param name The name of the desired item.
3133     * @param defaultValue the value to be returned if no value of the desired
3134     * type is stored with the given name.
3135     *
3136     * @return the value of an item that previously added with putExtra()
3137     * or the default value if none was found.
3138     *
3139     * @see #putExtra(String, int)
3140     */
3141    public int getIntExtra(String name, int defaultValue) {
3142        return mExtras == null ? defaultValue :
3143            mExtras.getInt(name, defaultValue);
3144    }
3145
3146    /**
3147     * Retrieve extended data from the intent.
3148     *
3149     * @param name The name of the desired item.
3150     * @param defaultValue the value to be returned if no value of the desired
3151     * type is stored with the given name.
3152     *
3153     * @return the value of an item that previously added with putExtra()
3154     * or the default value if none was found.
3155     *
3156     * @see #putExtra(String, long)
3157     */
3158    public long getLongExtra(String name, long defaultValue) {
3159        return mExtras == null ? defaultValue :
3160            mExtras.getLong(name, defaultValue);
3161    }
3162
3163    /**
3164     * Retrieve extended data from the intent.
3165     *
3166     * @param name The name of the desired item.
3167     * @param defaultValue the value to be returned if no value of the desired
3168     * type is stored with the given name.
3169     *
3170     * @return the value of an item that previously added with putExtra(),
3171     * or the default value if no such item is present
3172     *
3173     * @see #putExtra(String, float)
3174     */
3175    public float getFloatExtra(String name, float defaultValue) {
3176        return mExtras == null ? defaultValue :
3177            mExtras.getFloat(name, defaultValue);
3178    }
3179
3180    /**
3181     * Retrieve extended data from the intent.
3182     *
3183     * @param name The name of the desired item.
3184     * @param defaultValue the value to be returned if no value of the desired
3185     * type is stored with the given name.
3186     *
3187     * @return the value of an item that previously added with putExtra()
3188     * or the default value if none was found.
3189     *
3190     * @see #putExtra(String, double)
3191     */
3192    public double getDoubleExtra(String name, double defaultValue) {
3193        return mExtras == null ? defaultValue :
3194            mExtras.getDouble(name, defaultValue);
3195    }
3196
3197    /**
3198     * Retrieve extended data from the intent.
3199     *
3200     * @param name The name of the desired item.
3201     *
3202     * @return the value of an item that previously added with putExtra()
3203     * or null if no String value was found.
3204     *
3205     * @see #putExtra(String, String)
3206     */
3207    public String getStringExtra(String name) {
3208        return mExtras == null ? null : mExtras.getString(name);
3209    }
3210
3211    /**
3212     * Retrieve extended data from the intent.
3213     *
3214     * @param name The name of the desired item.
3215     *
3216     * @return the value of an item that previously added with putExtra()
3217     * or null if no CharSequence value was found.
3218     *
3219     * @see #putExtra(String, CharSequence)
3220     */
3221    public CharSequence getCharSequenceExtra(String name) {
3222        return mExtras == null ? null : mExtras.getCharSequence(name);
3223    }
3224
3225    /**
3226     * Retrieve extended data from the intent.
3227     *
3228     * @param name The name of the desired item.
3229     *
3230     * @return the value of an item that previously added with putExtra()
3231     * or null if no Parcelable value was found.
3232     *
3233     * @see #putExtra(String, Parcelable)
3234     */
3235    public <T extends Parcelable> T getParcelableExtra(String name) {
3236        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3237    }
3238
3239    /**
3240     * Retrieve extended data from the intent.
3241     *
3242     * @param name The name of the desired item.
3243     *
3244     * @return the value of an item that previously added with putExtra()
3245     * or null if no Parcelable[] value was found.
3246     *
3247     * @see #putExtra(String, Parcelable[])
3248     */
3249    public Parcelable[] getParcelableArrayExtra(String name) {
3250        return mExtras == null ? null : mExtras.getParcelableArray(name);
3251    }
3252
3253    /**
3254     * Retrieve extended data from the intent.
3255     *
3256     * @param name The name of the desired item.
3257     *
3258     * @return the value of an item that previously added with putExtra()
3259     * or null if no ArrayList<Parcelable> value was found.
3260     *
3261     * @see #putParcelableArrayListExtra(String, ArrayList)
3262     */
3263    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3264        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3265    }
3266
3267    /**
3268     * Retrieve extended data from the intent.
3269     *
3270     * @param name The name of the desired item.
3271     *
3272     * @return the value of an item that previously added with putExtra()
3273     * or null if no Serializable value was found.
3274     *
3275     * @see #putExtra(String, Serializable)
3276     */
3277    public Serializable getSerializableExtra(String name) {
3278        return mExtras == null ? null : mExtras.getSerializable(name);
3279    }
3280
3281    /**
3282     * Retrieve extended data from the intent.
3283     *
3284     * @param name The name of the desired item.
3285     *
3286     * @return the value of an item that previously added with putExtra()
3287     * or null if no ArrayList<Integer> value was found.
3288     *
3289     * @see #putIntegerArrayListExtra(String, ArrayList)
3290     */
3291    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3292        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3293    }
3294
3295    /**
3296     * Retrieve extended data from the intent.
3297     *
3298     * @param name The name of the desired item.
3299     *
3300     * @return the value of an item that previously added with putExtra()
3301     * or null if no ArrayList<String> value was found.
3302     *
3303     * @see #putStringArrayListExtra(String, ArrayList)
3304     */
3305    public ArrayList<String> getStringArrayListExtra(String name) {
3306        return mExtras == null ? null : mExtras.getStringArrayList(name);
3307    }
3308
3309    /**
3310     * Retrieve extended data from the intent.
3311     *
3312     * @param name The name of the desired item.
3313     *
3314     * @return the value of an item that previously added with putExtra()
3315     * or null if no boolean array value was found.
3316     *
3317     * @see #putExtra(String, boolean[])
3318     */
3319    public boolean[] getBooleanArrayExtra(String name) {
3320        return mExtras == null ? null : mExtras.getBooleanArray(name);
3321    }
3322
3323    /**
3324     * Retrieve extended data from the intent.
3325     *
3326     * @param name The name of the desired item.
3327     *
3328     * @return the value of an item that previously added with putExtra()
3329     * or null if no byte array value was found.
3330     *
3331     * @see #putExtra(String, byte[])
3332     */
3333    public byte[] getByteArrayExtra(String name) {
3334        return mExtras == null ? null : mExtras.getByteArray(name);
3335    }
3336
3337    /**
3338     * Retrieve extended data from the intent.
3339     *
3340     * @param name The name of the desired item.
3341     *
3342     * @return the value of an item that previously added with putExtra()
3343     * or null if no short array value was found.
3344     *
3345     * @see #putExtra(String, short[])
3346     */
3347    public short[] getShortArrayExtra(String name) {
3348        return mExtras == null ? null : mExtras.getShortArray(name);
3349    }
3350
3351    /**
3352     * Retrieve extended data from the intent.
3353     *
3354     * @param name The name of the desired item.
3355     *
3356     * @return the value of an item that previously added with putExtra()
3357     * or null if no char array value was found.
3358     *
3359     * @see #putExtra(String, char[])
3360     */
3361    public char[] getCharArrayExtra(String name) {
3362        return mExtras == null ? null : mExtras.getCharArray(name);
3363    }
3364
3365    /**
3366     * Retrieve extended data from the intent.
3367     *
3368     * @param name The name of the desired item.
3369     *
3370     * @return the value of an item that previously added with putExtra()
3371     * or null if no int array value was found.
3372     *
3373     * @see #putExtra(String, int[])
3374     */
3375    public int[] getIntArrayExtra(String name) {
3376        return mExtras == null ? null : mExtras.getIntArray(name);
3377    }
3378
3379    /**
3380     * Retrieve extended data from the intent.
3381     *
3382     * @param name The name of the desired item.
3383     *
3384     * @return the value of an item that previously added with putExtra()
3385     * or null if no long array value was found.
3386     *
3387     * @see #putExtra(String, long[])
3388     */
3389    public long[] getLongArrayExtra(String name) {
3390        return mExtras == null ? null : mExtras.getLongArray(name);
3391    }
3392
3393    /**
3394     * Retrieve extended data from the intent.
3395     *
3396     * @param name The name of the desired item.
3397     *
3398     * @return the value of an item that previously added with putExtra()
3399     * or null if no float array value was found.
3400     *
3401     * @see #putExtra(String, float[])
3402     */
3403    public float[] getFloatArrayExtra(String name) {
3404        return mExtras == null ? null : mExtras.getFloatArray(name);
3405    }
3406
3407    /**
3408     * Retrieve extended data from the intent.
3409     *
3410     * @param name The name of the desired item.
3411     *
3412     * @return the value of an item that previously added with putExtra()
3413     * or null if no double array value was found.
3414     *
3415     * @see #putExtra(String, double[])
3416     */
3417    public double[] getDoubleArrayExtra(String name) {
3418        return mExtras == null ? null : mExtras.getDoubleArray(name);
3419    }
3420
3421    /**
3422     * Retrieve extended data from the intent.
3423     *
3424     * @param name The name of the desired item.
3425     *
3426     * @return the value of an item that previously added with putExtra()
3427     * or null if no String array value was found.
3428     *
3429     * @see #putExtra(String, String[])
3430     */
3431    public String[] getStringArrayExtra(String name) {
3432        return mExtras == null ? null : mExtras.getStringArray(name);
3433    }
3434
3435    /**
3436     * Retrieve extended data from the intent.
3437     *
3438     * @param name The name of the desired item.
3439     *
3440     * @return the value of an item that previously added with putExtra()
3441     * or null if no Bundle value was found.
3442     *
3443     * @see #putExtra(String, Bundle)
3444     */
3445    public Bundle getBundleExtra(String name) {
3446        return mExtras == null ? null : mExtras.getBundle(name);
3447    }
3448
3449    /**
3450     * Retrieve extended data from the intent.
3451     *
3452     * @param name The name of the desired item.
3453     *
3454     * @return the value of an item that previously added with putExtra()
3455     * or null if no IBinder value was found.
3456     *
3457     * @see #putExtra(String, IBinder)
3458     *
3459     * @deprecated
3460     * @hide
3461     */
3462    @Deprecated
3463    public IBinder getIBinderExtra(String name) {
3464        return mExtras == null ? null : mExtras.getIBinder(name);
3465    }
3466
3467    /**
3468     * Retrieve extended data from the intent.
3469     *
3470     * @param name The name of the desired item.
3471     * @param defaultValue The default value to return in case no item is
3472     * associated with the key 'name'
3473     *
3474     * @return the value of an item that previously added with putExtra()
3475     * or defaultValue if none was found.
3476     *
3477     * @see #putExtra
3478     *
3479     * @deprecated
3480     * @hide
3481     */
3482    @Deprecated
3483    public Object getExtra(String name, Object defaultValue) {
3484        Object result = defaultValue;
3485        if (mExtras != null) {
3486            Object result2 = mExtras.get(name);
3487            if (result2 != null) {
3488                result = result2;
3489            }
3490        }
3491
3492        return result;
3493    }
3494
3495    /**
3496     * Retrieves a map of extended data from the intent.
3497     *
3498     * @return the map of all extras previously added with putExtra(),
3499     * or null if none have been added.
3500     */
3501    public Bundle getExtras() {
3502        return (mExtras != null)
3503                ? new Bundle(mExtras)
3504                : null;
3505    }
3506
3507    /**
3508     * Retrieve any special flags associated with this intent.  You will
3509     * normally just set them with {@link #setFlags} and let the system
3510     * take the appropriate action with them.
3511     *
3512     * @return int The currently set flags.
3513     *
3514     * @see #setFlags
3515     */
3516    public int getFlags() {
3517        return mFlags;
3518    }
3519
3520    /**
3521     * Retrieve the application package name this Intent is limited to.  When
3522     * resolving an Intent, if non-null this limits the resolution to only
3523     * components in the given application package.
3524     *
3525     * @return The name of the application package for the Intent.
3526     *
3527     * @see #resolveActivity
3528     * @see #setPackage
3529     */
3530    public String getPackage() {
3531        return mPackage;
3532    }
3533
3534    /**
3535     * Retrieve the concrete component associated with the intent.  When receiving
3536     * an intent, this is the component that was found to best handle it (that is,
3537     * yourself) and will always be non-null; in all other cases it will be
3538     * null unless explicitly set.
3539     *
3540     * @return The name of the application component to handle the intent.
3541     *
3542     * @see #resolveActivity
3543     * @see #setComponent
3544     */
3545    public ComponentName getComponent() {
3546        return mComponent;
3547    }
3548
3549    /**
3550     * Return the Activity component that should be used to handle this intent.
3551     * The appropriate component is determined based on the information in the
3552     * intent, evaluated as follows:
3553     *
3554     * <p>If {@link #getComponent} returns an explicit class, that is returned
3555     * without any further consideration.
3556     *
3557     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3558     * category to be considered.
3559     *
3560     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3561     * action.
3562     *
3563     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3564     * this type.
3565     *
3566     * <p>If {@link #addCategory} has added any categories, the activity must
3567     * handle ALL of the categories specified.
3568     *
3569     * <p>If {@link #getPackage} is non-NULL, only activity components in
3570     * that application package will be considered.
3571     *
3572     * <p>If there are no activities that satisfy all of these conditions, a
3573     * null string is returned.
3574     *
3575     * <p>If multiple activities are found to satisfy the intent, the one with
3576     * the highest priority will be used.  If there are multiple activities
3577     * with the same priority, the system will either pick the best activity
3578     * based on user preference, or resolve to a system class that will allow
3579     * the user to pick an activity and forward from there.
3580     *
3581     * <p>This method is implemented simply by calling
3582     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3583     * true.</p>
3584     * <p> This API is called for you as part of starting an activity from an
3585     * intent.  You do not normally need to call it yourself.</p>
3586     *
3587     * @param pm The package manager with which to resolve the Intent.
3588     *
3589     * @return Name of the component implementing an activity that can
3590     *         display the intent.
3591     *
3592     * @see #setComponent
3593     * @see #getComponent
3594     * @see #resolveActivityInfo
3595     */
3596    public ComponentName resolveActivity(PackageManager pm) {
3597        if (mComponent != null) {
3598            return mComponent;
3599        }
3600
3601        ResolveInfo info = pm.resolveActivity(
3602            this, PackageManager.MATCH_DEFAULT_ONLY);
3603        if (info != null) {
3604            return new ComponentName(
3605                    info.activityInfo.applicationInfo.packageName,
3606                    info.activityInfo.name);
3607        }
3608
3609        return null;
3610    }
3611
3612    /**
3613     * Resolve the Intent into an {@link ActivityInfo}
3614     * describing the activity that should execute the intent.  Resolution
3615     * follows the same rules as described for {@link #resolveActivity}, but
3616     * you get back the completely information about the resolved activity
3617     * instead of just its class name.
3618     *
3619     * @param pm The package manager with which to resolve the Intent.
3620     * @param flags Addition information to retrieve as per
3621     * {@link PackageManager#getActivityInfo(ComponentName, int)
3622     * PackageManager.getActivityInfo()}.
3623     *
3624     * @return PackageManager.ActivityInfo
3625     *
3626     * @see #resolveActivity
3627     */
3628    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3629        ActivityInfo ai = null;
3630        if (mComponent != null) {
3631            try {
3632                ai = pm.getActivityInfo(mComponent, flags);
3633            } catch (PackageManager.NameNotFoundException e) {
3634                // ignore
3635            }
3636        } else {
3637            ResolveInfo info = pm.resolveActivity(
3638                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
3639            if (info != null) {
3640                ai = info.activityInfo;
3641            }
3642        }
3643
3644        return ai;
3645    }
3646
3647    /**
3648     * Set the general action to be performed.
3649     *
3650     * @param action An action name, such as ACTION_VIEW.  Application-specific
3651     *               actions should be prefixed with the vendor's package name.
3652     *
3653     * @return Returns the same Intent object, for chaining multiple calls
3654     * into a single statement.
3655     *
3656     * @see #getAction
3657     */
3658    public Intent setAction(String action) {
3659        mAction = action;
3660        return this;
3661    }
3662
3663    /**
3664     * Set the data this intent is operating on.  This method automatically
3665     * clears any type that was previously set by {@link #setType}.
3666     *
3667     * <p><em>Note: scheme and host name matching in the Android framework is
3668     * case-sensitive, unlike the formal RFC.  As a result,
3669     * you should always ensure that you write your Uri with these elements
3670     * using lower case letters, and normalize any Uris you receive from
3671     * outside of Android to ensure the scheme and host is lower case.</em></p>
3672     *
3673     * @param data The URI of the data this intent is now targeting.
3674     *
3675     * @return Returns the same Intent object, for chaining multiple calls
3676     * into a single statement.
3677     *
3678     * @see #getData
3679     * @see #setType
3680     * @see #setDataAndType
3681     */
3682    public Intent setData(Uri data) {
3683        mData = data;
3684        mType = null;
3685        return this;
3686    }
3687
3688    /**
3689     * Set an explicit MIME data type.  This is used to create intents that
3690     * only specify a type and not data, for example to indicate the type of
3691     * data to return.  This method automatically clears any data that was
3692     * previously set by {@link #setData}.
3693     *
3694     * <p><em>Note: MIME type matching in the Android framework is
3695     * case-sensitive, unlike formal RFC MIME types.  As a result,
3696     * you should always write your MIME types with lower case letters,
3697     * and any MIME types you receive from outside of Android should be
3698     * converted to lower case before supplying them here.</em></p>
3699     *
3700     * @param type The MIME type of the data being handled by this intent.
3701     *
3702     * @return Returns the same Intent object, for chaining multiple calls
3703     * into a single statement.
3704     *
3705     * @see #getType
3706     * @see #setData
3707     * @see #setDataAndType
3708     */
3709    public Intent setType(String type) {
3710        mData = null;
3711        mType = type;
3712        return this;
3713    }
3714
3715    /**
3716     * (Usually optional) Set the data for the intent along with an explicit
3717     * MIME data type.  This method should very rarely be used -- it allows you
3718     * to override the MIME type that would ordinarily be inferred from the
3719     * data with your own type given here.
3720     *
3721     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
3722     * Android framework is case-sensitive, unlike the formal RFC definitions.
3723     * As a result, you should always write these elements with lower case letters,
3724     * and normalize any MIME types or Uris you receive from
3725     * outside of Android to ensure these elements are lower case before
3726     * supplying them here.</em></p>
3727     *
3728     * @param data The URI of the data this intent is now targeting.
3729     * @param type The MIME type of the data being handled by this intent.
3730     *
3731     * @return Returns the same Intent object, for chaining multiple calls
3732     * into a single statement.
3733     *
3734     * @see #setData
3735     * @see #setType
3736     */
3737    public Intent setDataAndType(Uri data, String type) {
3738        mData = data;
3739        mType = type;
3740        return this;
3741    }
3742
3743    /**
3744     * Add a new category to the intent.  Categories provide additional detail
3745     * about the action the intent is perform.  When resolving an intent, only
3746     * activities that provide <em>all</em> of the requested categories will be
3747     * used.
3748     *
3749     * @param category The desired category.  This can be either one of the
3750     *               predefined Intent categories, or a custom category in your own
3751     *               namespace.
3752     *
3753     * @return Returns the same Intent object, for chaining multiple calls
3754     * into a single statement.
3755     *
3756     * @see #hasCategory
3757     * @see #removeCategory
3758     */
3759    public Intent addCategory(String category) {
3760        if (mCategories == null) {
3761            mCategories = new HashSet<String>();
3762        }
3763        mCategories.add(category);
3764        return this;
3765    }
3766
3767    /**
3768     * Remove an category from an intent.
3769     *
3770     * @param category The category to remove.
3771     *
3772     * @see #addCategory
3773     */
3774    public void removeCategory(String category) {
3775        if (mCategories != null) {
3776            mCategories.remove(category);
3777            if (mCategories.size() == 0) {
3778                mCategories = null;
3779            }
3780        }
3781    }
3782
3783    /**
3784     * Add extended data to the intent.  The name must include a package
3785     * prefix, for example the app com.android.contacts would use names
3786     * like "com.android.contacts.ShowAll".
3787     *
3788     * @param name The name of the extra data, with package prefix.
3789     * @param value The boolean data value.
3790     *
3791     * @return Returns the same Intent object, for chaining multiple calls
3792     * into a single statement.
3793     *
3794     * @see #putExtras
3795     * @see #removeExtra
3796     * @see #getBooleanExtra(String, boolean)
3797     */
3798    public Intent putExtra(String name, boolean value) {
3799        if (mExtras == null) {
3800            mExtras = new Bundle();
3801        }
3802        mExtras.putBoolean(name, value);
3803        return this;
3804    }
3805
3806    /**
3807     * Add extended data to the intent.  The name must include a package
3808     * prefix, for example the app com.android.contacts would use names
3809     * like "com.android.contacts.ShowAll".
3810     *
3811     * @param name The name of the extra data, with package prefix.
3812     * @param value The byte data value.
3813     *
3814     * @return Returns the same Intent object, for chaining multiple calls
3815     * into a single statement.
3816     *
3817     * @see #putExtras
3818     * @see #removeExtra
3819     * @see #getByteExtra(String, byte)
3820     */
3821    public Intent putExtra(String name, byte value) {
3822        if (mExtras == null) {
3823            mExtras = new Bundle();
3824        }
3825        mExtras.putByte(name, value);
3826        return this;
3827    }
3828
3829    /**
3830     * Add extended data to the intent.  The name must include a package
3831     * prefix, for example the app com.android.contacts would use names
3832     * like "com.android.contacts.ShowAll".
3833     *
3834     * @param name The name of the extra data, with package prefix.
3835     * @param value The char data value.
3836     *
3837     * @return Returns the same Intent object, for chaining multiple calls
3838     * into a single statement.
3839     *
3840     * @see #putExtras
3841     * @see #removeExtra
3842     * @see #getCharExtra(String, char)
3843     */
3844    public Intent putExtra(String name, char value) {
3845        if (mExtras == null) {
3846            mExtras = new Bundle();
3847        }
3848        mExtras.putChar(name, value);
3849        return this;
3850    }
3851
3852    /**
3853     * Add extended data to the intent.  The name must include a package
3854     * prefix, for example the app com.android.contacts would use names
3855     * like "com.android.contacts.ShowAll".
3856     *
3857     * @param name The name of the extra data, with package prefix.
3858     * @param value The short data value.
3859     *
3860     * @return Returns the same Intent object, for chaining multiple calls
3861     * into a single statement.
3862     *
3863     * @see #putExtras
3864     * @see #removeExtra
3865     * @see #getShortExtra(String, short)
3866     */
3867    public Intent putExtra(String name, short value) {
3868        if (mExtras == null) {
3869            mExtras = new Bundle();
3870        }
3871        mExtras.putShort(name, value);
3872        return this;
3873    }
3874
3875    /**
3876     * Add extended data to the intent.  The name must include a package
3877     * prefix, for example the app com.android.contacts would use names
3878     * like "com.android.contacts.ShowAll".
3879     *
3880     * @param name The name of the extra data, with package prefix.
3881     * @param value The integer data value.
3882     *
3883     * @return Returns the same Intent object, for chaining multiple calls
3884     * into a single statement.
3885     *
3886     * @see #putExtras
3887     * @see #removeExtra
3888     * @see #getIntExtra(String, int)
3889     */
3890    public Intent putExtra(String name, int value) {
3891        if (mExtras == null) {
3892            mExtras = new Bundle();
3893        }
3894        mExtras.putInt(name, value);
3895        return this;
3896    }
3897
3898    /**
3899     * Add extended data to the intent.  The name must include a package
3900     * prefix, for example the app com.android.contacts would use names
3901     * like "com.android.contacts.ShowAll".
3902     *
3903     * @param name The name of the extra data, with package prefix.
3904     * @param value The long data value.
3905     *
3906     * @return Returns the same Intent object, for chaining multiple calls
3907     * into a single statement.
3908     *
3909     * @see #putExtras
3910     * @see #removeExtra
3911     * @see #getLongExtra(String, long)
3912     */
3913    public Intent putExtra(String name, long value) {
3914        if (mExtras == null) {
3915            mExtras = new Bundle();
3916        }
3917        mExtras.putLong(name, value);
3918        return this;
3919    }
3920
3921    /**
3922     * Add extended data to the intent.  The name must include a package
3923     * prefix, for example the app com.android.contacts would use names
3924     * like "com.android.contacts.ShowAll".
3925     *
3926     * @param name The name of the extra data, with package prefix.
3927     * @param value The float data value.
3928     *
3929     * @return Returns the same Intent object, for chaining multiple calls
3930     * into a single statement.
3931     *
3932     * @see #putExtras
3933     * @see #removeExtra
3934     * @see #getFloatExtra(String, float)
3935     */
3936    public Intent putExtra(String name, float value) {
3937        if (mExtras == null) {
3938            mExtras = new Bundle();
3939        }
3940        mExtras.putFloat(name, value);
3941        return this;
3942    }
3943
3944    /**
3945     * Add extended data to the intent.  The name must include a package
3946     * prefix, for example the app com.android.contacts would use names
3947     * like "com.android.contacts.ShowAll".
3948     *
3949     * @param name The name of the extra data, with package prefix.
3950     * @param value The double data value.
3951     *
3952     * @return Returns the same Intent object, for chaining multiple calls
3953     * into a single statement.
3954     *
3955     * @see #putExtras
3956     * @see #removeExtra
3957     * @see #getDoubleExtra(String, double)
3958     */
3959    public Intent putExtra(String name, double value) {
3960        if (mExtras == null) {
3961            mExtras = new Bundle();
3962        }
3963        mExtras.putDouble(name, value);
3964        return this;
3965    }
3966
3967    /**
3968     * Add extended data to the intent.  The name must include a package
3969     * prefix, for example the app com.android.contacts would use names
3970     * like "com.android.contacts.ShowAll".
3971     *
3972     * @param name The name of the extra data, with package prefix.
3973     * @param value The String data value.
3974     *
3975     * @return Returns the same Intent object, for chaining multiple calls
3976     * into a single statement.
3977     *
3978     * @see #putExtras
3979     * @see #removeExtra
3980     * @see #getStringExtra(String)
3981     */
3982    public Intent putExtra(String name, String value) {
3983        if (mExtras == null) {
3984            mExtras = new Bundle();
3985        }
3986        mExtras.putString(name, value);
3987        return this;
3988    }
3989
3990    /**
3991     * Add extended data to the intent.  The name must include a package
3992     * prefix, for example the app com.android.contacts would use names
3993     * like "com.android.contacts.ShowAll".
3994     *
3995     * @param name The name of the extra data, with package prefix.
3996     * @param value The CharSequence data value.
3997     *
3998     * @return Returns the same Intent object, for chaining multiple calls
3999     * into a single statement.
4000     *
4001     * @see #putExtras
4002     * @see #removeExtra
4003     * @see #getCharSequenceExtra(String)
4004     */
4005    public Intent putExtra(String name, CharSequence value) {
4006        if (mExtras == null) {
4007            mExtras = new Bundle();
4008        }
4009        mExtras.putCharSequence(name, value);
4010        return this;
4011    }
4012
4013    /**
4014     * Add extended data to the intent.  The name must include a package
4015     * prefix, for example the app com.android.contacts would use names
4016     * like "com.android.contacts.ShowAll".
4017     *
4018     * @param name The name of the extra data, with package prefix.
4019     * @param value The Parcelable data value.
4020     *
4021     * @return Returns the same Intent object, for chaining multiple calls
4022     * into a single statement.
4023     *
4024     * @see #putExtras
4025     * @see #removeExtra
4026     * @see #getParcelableExtra(String)
4027     */
4028    public Intent putExtra(String name, Parcelable value) {
4029        if (mExtras == null) {
4030            mExtras = new Bundle();
4031        }
4032        mExtras.putParcelable(name, value);
4033        return this;
4034    }
4035
4036    /**
4037     * Add extended data to the intent.  The name must include a package
4038     * prefix, for example the app com.android.contacts would use names
4039     * like "com.android.contacts.ShowAll".
4040     *
4041     * @param name The name of the extra data, with package prefix.
4042     * @param value The Parcelable[] data value.
4043     *
4044     * @return Returns the same Intent object, for chaining multiple calls
4045     * into a single statement.
4046     *
4047     * @see #putExtras
4048     * @see #removeExtra
4049     * @see #getParcelableArrayExtra(String)
4050     */
4051    public Intent putExtra(String name, Parcelable[] value) {
4052        if (mExtras == null) {
4053            mExtras = new Bundle();
4054        }
4055        mExtras.putParcelableArray(name, value);
4056        return this;
4057    }
4058
4059    /**
4060     * Add extended data to the intent.  The name must include a package
4061     * prefix, for example the app com.android.contacts would use names
4062     * like "com.android.contacts.ShowAll".
4063     *
4064     * @param name The name of the extra data, with package prefix.
4065     * @param value The ArrayList<Parcelable> data value.
4066     *
4067     * @return Returns the same Intent object, for chaining multiple calls
4068     * into a single statement.
4069     *
4070     * @see #putExtras
4071     * @see #removeExtra
4072     * @see #getParcelableArrayListExtra(String)
4073     */
4074    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
4075        if (mExtras == null) {
4076            mExtras = new Bundle();
4077        }
4078        mExtras.putParcelableArrayList(name, value);
4079        return this;
4080    }
4081
4082    /**
4083     * Add extended data to the intent.  The name must include a package
4084     * prefix, for example the app com.android.contacts would use names
4085     * like "com.android.contacts.ShowAll".
4086     *
4087     * @param name The name of the extra data, with package prefix.
4088     * @param value The ArrayList<Integer> data value.
4089     *
4090     * @return Returns the same Intent object, for chaining multiple calls
4091     * into a single statement.
4092     *
4093     * @see #putExtras
4094     * @see #removeExtra
4095     * @see #getIntegerArrayListExtra(String)
4096     */
4097    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
4098        if (mExtras == null) {
4099            mExtras = new Bundle();
4100        }
4101        mExtras.putIntegerArrayList(name, value);
4102        return this;
4103    }
4104
4105    /**
4106     * Add extended data to the intent.  The name must include a package
4107     * prefix, for example the app com.android.contacts would use names
4108     * like "com.android.contacts.ShowAll".
4109     *
4110     * @param name The name of the extra data, with package prefix.
4111     * @param value The ArrayList<String> data value.
4112     *
4113     * @return Returns the same Intent object, for chaining multiple calls
4114     * into a single statement.
4115     *
4116     * @see #putExtras
4117     * @see #removeExtra
4118     * @see #getStringArrayListExtra(String)
4119     */
4120    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
4121        if (mExtras == null) {
4122            mExtras = new Bundle();
4123        }
4124        mExtras.putStringArrayList(name, value);
4125        return this;
4126    }
4127
4128    /**
4129     * Add extended data to the intent.  The name must include a package
4130     * prefix, for example the app com.android.contacts would use names
4131     * like "com.android.contacts.ShowAll".
4132     *
4133     * @param name The name of the extra data, with package prefix.
4134     * @param value The Serializable data value.
4135     *
4136     * @return Returns the same Intent object, for chaining multiple calls
4137     * into a single statement.
4138     *
4139     * @see #putExtras
4140     * @see #removeExtra
4141     * @see #getSerializableExtra(String)
4142     */
4143    public Intent putExtra(String name, Serializable value) {
4144        if (mExtras == null) {
4145            mExtras = new Bundle();
4146        }
4147        mExtras.putSerializable(name, value);
4148        return this;
4149    }
4150
4151    /**
4152     * Add extended data to the intent.  The name must include a package
4153     * prefix, for example the app com.android.contacts would use names
4154     * like "com.android.contacts.ShowAll".
4155     *
4156     * @param name The name of the extra data, with package prefix.
4157     * @param value The boolean array data value.
4158     *
4159     * @return Returns the same Intent object, for chaining multiple calls
4160     * into a single statement.
4161     *
4162     * @see #putExtras
4163     * @see #removeExtra
4164     * @see #getBooleanArrayExtra(String)
4165     */
4166    public Intent putExtra(String name, boolean[] value) {
4167        if (mExtras == null) {
4168            mExtras = new Bundle();
4169        }
4170        mExtras.putBooleanArray(name, value);
4171        return this;
4172    }
4173
4174    /**
4175     * Add extended data to the intent.  The name must include a package
4176     * prefix, for example the app com.android.contacts would use names
4177     * like "com.android.contacts.ShowAll".
4178     *
4179     * @param name The name of the extra data, with package prefix.
4180     * @param value The byte array data value.
4181     *
4182     * @return Returns the same Intent object, for chaining multiple calls
4183     * into a single statement.
4184     *
4185     * @see #putExtras
4186     * @see #removeExtra
4187     * @see #getByteArrayExtra(String)
4188     */
4189    public Intent putExtra(String name, byte[] value) {
4190        if (mExtras == null) {
4191            mExtras = new Bundle();
4192        }
4193        mExtras.putByteArray(name, value);
4194        return this;
4195    }
4196
4197    /**
4198     * Add extended data to the intent.  The name must include a package
4199     * prefix, for example the app com.android.contacts would use names
4200     * like "com.android.contacts.ShowAll".
4201     *
4202     * @param name The name of the extra data, with package prefix.
4203     * @param value The short array data value.
4204     *
4205     * @return Returns the same Intent object, for chaining multiple calls
4206     * into a single statement.
4207     *
4208     * @see #putExtras
4209     * @see #removeExtra
4210     * @see #getShortArrayExtra(String)
4211     */
4212    public Intent putExtra(String name, short[] value) {
4213        if (mExtras == null) {
4214            mExtras = new Bundle();
4215        }
4216        mExtras.putShortArray(name, value);
4217        return this;
4218    }
4219
4220    /**
4221     * Add extended data to the intent.  The name must include a package
4222     * prefix, for example the app com.android.contacts would use names
4223     * like "com.android.contacts.ShowAll".
4224     *
4225     * @param name The name of the extra data, with package prefix.
4226     * @param value The char array data value.
4227     *
4228     * @return Returns the same Intent object, for chaining multiple calls
4229     * into a single statement.
4230     *
4231     * @see #putExtras
4232     * @see #removeExtra
4233     * @see #getCharArrayExtra(String)
4234     */
4235    public Intent putExtra(String name, char[] value) {
4236        if (mExtras == null) {
4237            mExtras = new Bundle();
4238        }
4239        mExtras.putCharArray(name, value);
4240        return this;
4241    }
4242
4243    /**
4244     * Add extended data to the intent.  The name must include a package
4245     * prefix, for example the app com.android.contacts would use names
4246     * like "com.android.contacts.ShowAll".
4247     *
4248     * @param name The name of the extra data, with package prefix.
4249     * @param value The int array data value.
4250     *
4251     * @return Returns the same Intent object, for chaining multiple calls
4252     * into a single statement.
4253     *
4254     * @see #putExtras
4255     * @see #removeExtra
4256     * @see #getIntArrayExtra(String)
4257     */
4258    public Intent putExtra(String name, int[] value) {
4259        if (mExtras == null) {
4260            mExtras = new Bundle();
4261        }
4262        mExtras.putIntArray(name, value);
4263        return this;
4264    }
4265
4266    /**
4267     * Add extended data to the intent.  The name must include a package
4268     * prefix, for example the app com.android.contacts would use names
4269     * like "com.android.contacts.ShowAll".
4270     *
4271     * @param name The name of the extra data, with package prefix.
4272     * @param value The byte array data value.
4273     *
4274     * @return Returns the same Intent object, for chaining multiple calls
4275     * into a single statement.
4276     *
4277     * @see #putExtras
4278     * @see #removeExtra
4279     * @see #getLongArrayExtra(String)
4280     */
4281    public Intent putExtra(String name, long[] value) {
4282        if (mExtras == null) {
4283            mExtras = new Bundle();
4284        }
4285        mExtras.putLongArray(name, value);
4286        return this;
4287    }
4288
4289    /**
4290     * Add extended data to the intent.  The name must include a package
4291     * prefix, for example the app com.android.contacts would use names
4292     * like "com.android.contacts.ShowAll".
4293     *
4294     * @param name The name of the extra data, with package prefix.
4295     * @param value The float array data value.
4296     *
4297     * @return Returns the same Intent object, for chaining multiple calls
4298     * into a single statement.
4299     *
4300     * @see #putExtras
4301     * @see #removeExtra
4302     * @see #getFloatArrayExtra(String)
4303     */
4304    public Intent putExtra(String name, float[] value) {
4305        if (mExtras == null) {
4306            mExtras = new Bundle();
4307        }
4308        mExtras.putFloatArray(name, value);
4309        return this;
4310    }
4311
4312    /**
4313     * Add extended data to the intent.  The name must include a package
4314     * prefix, for example the app com.android.contacts would use names
4315     * like "com.android.contacts.ShowAll".
4316     *
4317     * @param name The name of the extra data, with package prefix.
4318     * @param value The double array data value.
4319     *
4320     * @return Returns the same Intent object, for chaining multiple calls
4321     * into a single statement.
4322     *
4323     * @see #putExtras
4324     * @see #removeExtra
4325     * @see #getDoubleArrayExtra(String)
4326     */
4327    public Intent putExtra(String name, double[] value) {
4328        if (mExtras == null) {
4329            mExtras = new Bundle();
4330        }
4331        mExtras.putDoubleArray(name, value);
4332        return this;
4333    }
4334
4335    /**
4336     * Add extended data to the intent.  The name must include a package
4337     * prefix, for example the app com.android.contacts would use names
4338     * like "com.android.contacts.ShowAll".
4339     *
4340     * @param name The name of the extra data, with package prefix.
4341     * @param value The String array data value.
4342     *
4343     * @return Returns the same Intent object, for chaining multiple calls
4344     * into a single statement.
4345     *
4346     * @see #putExtras
4347     * @see #removeExtra
4348     * @see #getStringArrayExtra(String)
4349     */
4350    public Intent putExtra(String name, String[] value) {
4351        if (mExtras == null) {
4352            mExtras = new Bundle();
4353        }
4354        mExtras.putStringArray(name, value);
4355        return this;
4356    }
4357
4358    /**
4359     * Add extended data to the intent.  The name must include a package
4360     * prefix, for example the app com.android.contacts would use names
4361     * like "com.android.contacts.ShowAll".
4362     *
4363     * @param name The name of the extra data, with package prefix.
4364     * @param value The Bundle data value.
4365     *
4366     * @return Returns the same Intent object, for chaining multiple calls
4367     * into a single statement.
4368     *
4369     * @see #putExtras
4370     * @see #removeExtra
4371     * @see #getBundleExtra(String)
4372     */
4373    public Intent putExtra(String name, Bundle value) {
4374        if (mExtras == null) {
4375            mExtras = new Bundle();
4376        }
4377        mExtras.putBundle(name, value);
4378        return this;
4379    }
4380
4381    /**
4382     * Add extended data to the intent.  The name must include a package
4383     * prefix, for example the app com.android.contacts would use names
4384     * like "com.android.contacts.ShowAll".
4385     *
4386     * @param name The name of the extra data, with package prefix.
4387     * @param value The IBinder data value.
4388     *
4389     * @return Returns the same Intent object, for chaining multiple calls
4390     * into a single statement.
4391     *
4392     * @see #putExtras
4393     * @see #removeExtra
4394     * @see #getIBinderExtra(String)
4395     *
4396     * @deprecated
4397     * @hide
4398     */
4399    @Deprecated
4400    public Intent putExtra(String name, IBinder value) {
4401        if (mExtras == null) {
4402            mExtras = new Bundle();
4403        }
4404        mExtras.putIBinder(name, value);
4405        return this;
4406    }
4407
4408    /**
4409     * Copy all extras in 'src' in to this intent.
4410     *
4411     * @param src Contains the extras to copy.
4412     *
4413     * @see #putExtra
4414     */
4415    public Intent putExtras(Intent src) {
4416        if (src.mExtras != null) {
4417            if (mExtras == null) {
4418                mExtras = new Bundle(src.mExtras);
4419            } else {
4420                mExtras.putAll(src.mExtras);
4421            }
4422        }
4423        return this;
4424    }
4425
4426    /**
4427     * Add a set of extended data to the intent.  The keys must include a package
4428     * prefix, for example the app com.android.contacts would use names
4429     * like "com.android.contacts.ShowAll".
4430     *
4431     * @param extras The Bundle of extras to add to this intent.
4432     *
4433     * @see #putExtra
4434     * @see #removeExtra
4435     */
4436    public Intent putExtras(Bundle extras) {
4437        if (mExtras == null) {
4438            mExtras = new Bundle();
4439        }
4440        mExtras.putAll(extras);
4441        return this;
4442    }
4443
4444    /**
4445     * Completely replace the extras in the Intent with the extras in the
4446     * given Intent.
4447     *
4448     * @param src The exact extras contained in this Intent are copied
4449     * into the target intent, replacing any that were previously there.
4450     */
4451    public Intent replaceExtras(Intent src) {
4452        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4453        return this;
4454    }
4455
4456    /**
4457     * Completely replace the extras in the Intent with the given Bundle of
4458     * extras.
4459     *
4460     * @param extras The new set of extras in the Intent, or null to erase
4461     * all extras.
4462     */
4463    public Intent replaceExtras(Bundle extras) {
4464        mExtras = extras != null ? new Bundle(extras) : null;
4465        return this;
4466    }
4467
4468    /**
4469     * Remove extended data from the intent.
4470     *
4471     * @see #putExtra
4472     */
4473    public void removeExtra(String name) {
4474        if (mExtras != null) {
4475            mExtras.remove(name);
4476            if (mExtras.size() == 0) {
4477                mExtras = null;
4478            }
4479        }
4480    }
4481
4482    /**
4483     * Set special flags controlling how this intent is handled.  Most values
4484     * here depend on the type of component being executed by the Intent,
4485     * specifically the FLAG_ACTIVITY_* flags are all for use with
4486     * {@link Context#startActivity Context.startActivity()} and the
4487     * FLAG_RECEIVER_* flags are all for use with
4488     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4489     *
4490     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4491     * Activities and Tasks</a> documentation for important information on how some of these options impact
4492     * the behavior of your application.
4493     *
4494     * @param flags The desired flags.
4495     *
4496     * @return Returns the same Intent object, for chaining multiple calls
4497     * into a single statement.
4498     *
4499     * @see #getFlags
4500     * @see #addFlags
4501     *
4502     * @see #FLAG_GRANT_READ_URI_PERMISSION
4503     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4504     * @see #FLAG_DEBUG_LOG_RESOLUTION
4505     * @see #FLAG_FROM_BACKGROUND
4506     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4507     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4508     * @see #FLAG_ACTIVITY_CLEAR_TOP
4509     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4510     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4511     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4512     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4513     * @see #FLAG_ACTIVITY_NEW_TASK
4514     * @see #FLAG_ACTIVITY_NO_HISTORY
4515     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4516     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4517     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4518     * @see #FLAG_ACTIVITY_SINGLE_TOP
4519     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4520     */
4521    public Intent setFlags(int flags) {
4522        mFlags = flags;
4523        return this;
4524    }
4525
4526    /**
4527     * Add additional flags to the intent (or with existing flags
4528     * value).
4529     *
4530     * @param flags The new flags to set.
4531     *
4532     * @return Returns the same Intent object, for chaining multiple calls
4533     * into a single statement.
4534     *
4535     * @see #setFlags
4536     */
4537    public Intent addFlags(int flags) {
4538        mFlags |= flags;
4539        return this;
4540    }
4541
4542    /**
4543     * (Usually optional) Set an explicit application package name that limits
4544     * the components this Intent will resolve to.  If left to the default
4545     * value of null, all components in all applications will considered.
4546     * If non-null, the Intent can only match the components in the given
4547     * application package.
4548     *
4549     * @param packageName The name of the application package to handle the
4550     * intent, or null to allow any application package.
4551     *
4552     * @return Returns the same Intent object, for chaining multiple calls
4553     * into a single statement.
4554     *
4555     * @see #getPackage
4556     * @see #resolveActivity
4557     */
4558    public Intent setPackage(String packageName) {
4559        mPackage = packageName;
4560        return this;
4561    }
4562
4563    /**
4564     * (Usually optional) Explicitly set the component to handle the intent.
4565     * If left with the default value of null, the system will determine the
4566     * appropriate class to use based on the other fields (action, data,
4567     * type, categories) in the Intent.  If this class is defined, the
4568     * specified class will always be used regardless of the other fields.  You
4569     * should only set this value when you know you absolutely want a specific
4570     * class to be used; otherwise it is better to let the system find the
4571     * appropriate class so that you will respect the installed applications
4572     * and user preferences.
4573     *
4574     * @param component The name of the application component to handle the
4575     * intent, or null to let the system find one for you.
4576     *
4577     * @return Returns the same Intent object, for chaining multiple calls
4578     * into a single statement.
4579     *
4580     * @see #setClass
4581     * @see #setClassName(Context, String)
4582     * @see #setClassName(String, String)
4583     * @see #getComponent
4584     * @see #resolveActivity
4585     */
4586    public Intent setComponent(ComponentName component) {
4587        mComponent = component;
4588        return this;
4589    }
4590
4591    /**
4592     * Convenience for calling {@link #setComponent} with an
4593     * explicit class name.
4594     *
4595     * @param packageContext A Context of the application package implementing
4596     * this class.
4597     * @param className The name of a class inside of the application package
4598     * that will be used as the component for this Intent.
4599     *
4600     * @return Returns the same Intent object, for chaining multiple calls
4601     * into a single statement.
4602     *
4603     * @see #setComponent
4604     * @see #setClass
4605     */
4606    public Intent setClassName(Context packageContext, String className) {
4607        mComponent = new ComponentName(packageContext, className);
4608        return this;
4609    }
4610
4611    /**
4612     * Convenience for calling {@link #setComponent} with an
4613     * explicit application package name and class name.
4614     *
4615     * @param packageName The name of the package implementing the desired
4616     * component.
4617     * @param className The name of a class inside of the application package
4618     * that will be used as the component for this Intent.
4619     *
4620     * @return Returns the same Intent object, for chaining multiple calls
4621     * into a single statement.
4622     *
4623     * @see #setComponent
4624     * @see #setClass
4625     */
4626    public Intent setClassName(String packageName, String className) {
4627        mComponent = new ComponentName(packageName, className);
4628        return this;
4629    }
4630
4631    /**
4632     * Convenience for calling {@link #setComponent(ComponentName)} with the
4633     * name returned by a {@link Class} object.
4634     *
4635     * @param packageContext A Context of the application package implementing
4636     * this class.
4637     * @param cls The class name to set, equivalent to
4638     *            <code>setClassName(context, cls.getName())</code>.
4639     *
4640     * @return Returns the same Intent object, for chaining multiple calls
4641     * into a single statement.
4642     *
4643     * @see #setComponent
4644     */
4645    public Intent setClass(Context packageContext, Class<?> cls) {
4646        mComponent = new ComponentName(packageContext, cls);
4647        return this;
4648    }
4649
4650    /**
4651     * Use with {@link #fillIn} to allow the current action value to be
4652     * overwritten, even if it is already set.
4653     */
4654    public static final int FILL_IN_ACTION = 1<<0;
4655
4656    /**
4657     * Use with {@link #fillIn} to allow the current data or type value
4658     * overwritten, even if it is already set.
4659     */
4660    public static final int FILL_IN_DATA = 1<<1;
4661
4662    /**
4663     * Use with {@link #fillIn} to allow the current categories to be
4664     * overwritten, even if they are already set.
4665     */
4666    public static final int FILL_IN_CATEGORIES = 1<<2;
4667
4668    /**
4669     * Use with {@link #fillIn} to allow the current component value to be
4670     * overwritten, even if it is already set.
4671     */
4672    public static final int FILL_IN_COMPONENT = 1<<3;
4673
4674    /**
4675     * Use with {@link #fillIn} to allow the current package value to be
4676     * overwritten, even if it is already set.
4677     */
4678    public static final int FILL_IN_PACKAGE = 1<<4;
4679
4680    /**
4681     * Copy the contents of <var>other</var> in to this object, but only
4682     * where fields are not defined by this object.  For purposes of a field
4683     * being defined, the following pieces of data in the Intent are
4684     * considered to be separate fields:
4685     *
4686     * <ul>
4687     * <li> action, as set by {@link #setAction}.
4688     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4689     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4690     * <li> categories, as set by {@link #addCategory}.
4691     * <li> package, as set by {@link #setPackage}.
4692     * <li> component, as set by {@link #setComponent(ComponentName)} or
4693     * related methods.
4694     * <li> each top-level name in the associated extras.
4695     * </ul>
4696     *
4697     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4698     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4699     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
4700     * corresponding field will not be replaced if it is already set.
4701     *
4702     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
4703     * specified.
4704     *
4705     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4706     * and Intent B with {action="gotit", data-type="some/thing",
4707     * categories="one","two"}.
4708     *
4709     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4710     * containing: {action="gotit", data-type="some/thing",
4711     * categories="bar"}.
4712     *
4713     * @param other Another Intent whose values are to be used to fill in
4714     * the current one.
4715     * @param flags Options to control which fields can be filled in.
4716     *
4717     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4718     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4719     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4720     */
4721    public int fillIn(Intent other, int flags) {
4722        int changes = 0;
4723        if (other.mAction != null
4724                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
4725            mAction = other.mAction;
4726            changes |= FILL_IN_ACTION;
4727        }
4728        if ((other.mData != null || other.mType != null)
4729                && ((mData == null && mType == null)
4730                        || (flags&FILL_IN_DATA) != 0)) {
4731            mData = other.mData;
4732            mType = other.mType;
4733            changes |= FILL_IN_DATA;
4734        }
4735        if (other.mCategories != null
4736                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
4737            if (other.mCategories != null) {
4738                mCategories = new HashSet<String>(other.mCategories);
4739            }
4740            changes |= FILL_IN_CATEGORIES;
4741        }
4742        if (other.mPackage != null
4743                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
4744            mPackage = other.mPackage;
4745            changes |= FILL_IN_PACKAGE;
4746        }
4747        // Component is special: it can -only- be set if explicitly allowed,
4748        // since otherwise the sender could force the intent somewhere the
4749        // originator didn't intend.
4750        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
4751            mComponent = other.mComponent;
4752            changes |= FILL_IN_COMPONENT;
4753        }
4754        mFlags |= other.mFlags;
4755        if (mExtras == null) {
4756            if (other.mExtras != null) {
4757                mExtras = new Bundle(other.mExtras);
4758            }
4759        } else if (other.mExtras != null) {
4760            try {
4761                Bundle newb = new Bundle(other.mExtras);
4762                newb.putAll(mExtras);
4763                mExtras = newb;
4764            } catch (RuntimeException e) {
4765                // Modifying the extras can cause us to unparcel the contents
4766                // of the bundle, and if we do this in the system process that
4767                // may fail.  We really should handle this (i.e., the Bundle
4768                // impl shouldn't be on top of a plain map), but for now just
4769                // ignore it and keep the original contents. :(
4770                Log.w("Intent", "Failure filling in extras", e);
4771            }
4772        }
4773        return changes;
4774    }
4775
4776    /**
4777     * Wrapper class holding an Intent and implementing comparisons on it for
4778     * the purpose of filtering.  The class implements its
4779     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4780     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4781     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4782     * on the wrapped Intent.
4783     */
4784    public static final class FilterComparison {
4785        private final Intent mIntent;
4786        private final int mHashCode;
4787
4788        public FilterComparison(Intent intent) {
4789            mIntent = intent;
4790            mHashCode = intent.filterHashCode();
4791        }
4792
4793        /**
4794         * Return the Intent that this FilterComparison represents.
4795         * @return Returns the Intent held by the FilterComparison.  Do
4796         * not modify!
4797         */
4798        public Intent getIntent() {
4799            return mIntent;
4800        }
4801
4802        @Override
4803        public boolean equals(Object obj) {
4804            if (obj instanceof FilterComparison) {
4805                Intent other = ((FilterComparison)obj).mIntent;
4806                return mIntent.filterEquals(other);
4807            }
4808            return false;
4809        }
4810
4811        @Override
4812        public int hashCode() {
4813            return mHashCode;
4814        }
4815    }
4816
4817    /**
4818     * Determine if two intents are the same for the purposes of intent
4819     * resolution (filtering). That is, if their action, data, type,
4820     * class, and categories are the same.  This does <em>not</em> compare
4821     * any extra data included in the intents.
4822     *
4823     * @param other The other Intent to compare against.
4824     *
4825     * @return Returns true if action, data, type, class, and categories
4826     *         are the same.
4827     */
4828    public boolean filterEquals(Intent other) {
4829        if (other == null) {
4830            return false;
4831        }
4832        if (mAction != other.mAction) {
4833            if (mAction != null) {
4834                if (!mAction.equals(other.mAction)) {
4835                    return false;
4836                }
4837            } else {
4838                if (!other.mAction.equals(mAction)) {
4839                    return false;
4840                }
4841            }
4842        }
4843        if (mData != other.mData) {
4844            if (mData != null) {
4845                if (!mData.equals(other.mData)) {
4846                    return false;
4847                }
4848            } else {
4849                if (!other.mData.equals(mData)) {
4850                    return false;
4851                }
4852            }
4853        }
4854        if (mType != other.mType) {
4855            if (mType != null) {
4856                if (!mType.equals(other.mType)) {
4857                    return false;
4858                }
4859            } else {
4860                if (!other.mType.equals(mType)) {
4861                    return false;
4862                }
4863            }
4864        }
4865        if (mPackage != other.mPackage) {
4866            if (mPackage != null) {
4867                if (!mPackage.equals(other.mPackage)) {
4868                    return false;
4869                }
4870            } else {
4871                if (!other.mPackage.equals(mPackage)) {
4872                    return false;
4873                }
4874            }
4875        }
4876        if (mComponent != other.mComponent) {
4877            if (mComponent != null) {
4878                if (!mComponent.equals(other.mComponent)) {
4879                    return false;
4880                }
4881            } else {
4882                if (!other.mComponent.equals(mComponent)) {
4883                    return false;
4884                }
4885            }
4886        }
4887        if (mCategories != other.mCategories) {
4888            if (mCategories != null) {
4889                if (!mCategories.equals(other.mCategories)) {
4890                    return false;
4891                }
4892            } else {
4893                if (!other.mCategories.equals(mCategories)) {
4894                    return false;
4895                }
4896            }
4897        }
4898
4899        return true;
4900    }
4901
4902    /**
4903     * Generate hash code that matches semantics of filterEquals().
4904     *
4905     * @return Returns the hash value of the action, data, type, class, and
4906     *         categories.
4907     *
4908     * @see #filterEquals
4909     */
4910    public int filterHashCode() {
4911        int code = 0;
4912        if (mAction != null) {
4913            code += mAction.hashCode();
4914        }
4915        if (mData != null) {
4916            code += mData.hashCode();
4917        }
4918        if (mType != null) {
4919            code += mType.hashCode();
4920        }
4921        if (mPackage != null) {
4922            code += mPackage.hashCode();
4923        }
4924        if (mComponent != null) {
4925            code += mComponent.hashCode();
4926        }
4927        if (mCategories != null) {
4928            code += mCategories.hashCode();
4929        }
4930        return code;
4931    }
4932
4933    @Override
4934    public String toString() {
4935        StringBuilder   b = new StringBuilder(128);
4936
4937        b.append("Intent { ");
4938        toShortString(b, true, true);
4939        b.append(" }");
4940
4941        return b.toString();
4942    }
4943
4944    /** @hide */
4945    public String toShortString(boolean comp, boolean extras) {
4946        StringBuilder   b = new StringBuilder(128);
4947        toShortString(b, comp, extras);
4948        return b.toString();
4949    }
4950
4951    /** @hide */
4952    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
4953        boolean first = true;
4954        if (mAction != null) {
4955            b.append("act=").append(mAction);
4956            first = false;
4957        }
4958        if (mCategories != null) {
4959            if (!first) {
4960                b.append(' ');
4961            }
4962            first = false;
4963            b.append("cat=[");
4964            Iterator<String> i = mCategories.iterator();
4965            boolean didone = false;
4966            while (i.hasNext()) {
4967                if (didone) b.append(",");
4968                didone = true;
4969                b.append(i.next());
4970            }
4971            b.append("]");
4972        }
4973        if (mData != null) {
4974            if (!first) {
4975                b.append(' ');
4976            }
4977            first = false;
4978            b.append("dat=").append(mData);
4979        }
4980        if (mType != null) {
4981            if (!first) {
4982                b.append(' ');
4983            }
4984            first = false;
4985            b.append("typ=").append(mType);
4986        }
4987        if (mFlags != 0) {
4988            if (!first) {
4989                b.append(' ');
4990            }
4991            first = false;
4992            b.append("flg=0x").append(Integer.toHexString(mFlags));
4993        }
4994        if (mPackage != null) {
4995            if (!first) {
4996                b.append(' ');
4997            }
4998            first = false;
4999            b.append("pkg=").append(mPackage);
5000        }
5001        if (comp && mComponent != null) {
5002            if (!first) {
5003                b.append(' ');
5004            }
5005            first = false;
5006            b.append("cmp=").append(mComponent.flattenToShortString());
5007        }
5008        if (extras && mExtras != null) {
5009            if (!first) {
5010                b.append(' ');
5011            }
5012            first = false;
5013            b.append("(has extras)");
5014        }
5015    }
5016
5017    /**
5018     * Call {@link #toUri} with 0 flags.
5019     * @deprecated Use {@link #toUri} instead.
5020     */
5021    @Deprecated
5022    public String toURI() {
5023        return toUri(0);
5024    }
5025
5026    /**
5027     * Convert this Intent into a String holding a URI representation of it.
5028     * The returned URI string has been properly URI encoded, so it can be
5029     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
5030     * Intent's data as the base URI, with an additional fragment describing
5031     * the action, categories, type, flags, package, component, and extras.
5032     *
5033     * <p>You can convert the returned string back to an Intent with
5034     * {@link #getIntent}.
5035     *
5036     * @param flags Additional operating flags.  Either 0 or
5037     * {@link #URI_INTENT_SCHEME}.
5038     *
5039     * @return Returns a URI encoding URI string describing the entire contents
5040     * of the Intent.
5041     */
5042    public String toUri(int flags) {
5043        StringBuilder uri = new StringBuilder(128);
5044        String scheme = null;
5045        if (mData != null) {
5046            String data = mData.toString();
5047            if ((flags&URI_INTENT_SCHEME) != 0) {
5048                final int N = data.length();
5049                for (int i=0; i<N; i++) {
5050                    char c = data.charAt(i);
5051                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
5052                            || c == '.' || c == '-') {
5053                        continue;
5054                    }
5055                    if (c == ':' && i > 0) {
5056                        // Valid scheme.
5057                        scheme = data.substring(0, i);
5058                        uri.append("intent:");
5059                        data = data.substring(i+1);
5060                        break;
5061                    }
5062
5063                    // No scheme.
5064                    break;
5065                }
5066            }
5067            uri.append(data);
5068
5069        } else if ((flags&URI_INTENT_SCHEME) != 0) {
5070            uri.append("intent:");
5071        }
5072
5073        uri.append("#Intent;");
5074
5075        if (scheme != null) {
5076            uri.append("scheme=").append(scheme).append(';');
5077        }
5078        if (mAction != null) {
5079            uri.append("action=").append(Uri.encode(mAction)).append(';');
5080        }
5081        if (mCategories != null) {
5082            for (String category : mCategories) {
5083                uri.append("category=").append(Uri.encode(category)).append(';');
5084            }
5085        }
5086        if (mType != null) {
5087            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
5088        }
5089        if (mFlags != 0) {
5090            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
5091        }
5092        if (mPackage != null) {
5093            uri.append("package=").append(Uri.encode(mPackage)).append(';');
5094        }
5095        if (mComponent != null) {
5096            uri.append("component=").append(Uri.encode(
5097                    mComponent.flattenToShortString(), "/")).append(';');
5098        }
5099        if (mExtras != null) {
5100            for (String key : mExtras.keySet()) {
5101                final Object value = mExtras.get(key);
5102                char entryType =
5103                        value instanceof String    ? 'S' :
5104                        value instanceof Boolean   ? 'B' :
5105                        value instanceof Byte      ? 'b' :
5106                        value instanceof Character ? 'c' :
5107                        value instanceof Double    ? 'd' :
5108                        value instanceof Float     ? 'f' :
5109                        value instanceof Integer   ? 'i' :
5110                        value instanceof Long      ? 'l' :
5111                        value instanceof Short     ? 's' :
5112                        '\0';
5113
5114                if (entryType != '\0') {
5115                    uri.append(entryType);
5116                    uri.append('.');
5117                    uri.append(Uri.encode(key));
5118                    uri.append('=');
5119                    uri.append(Uri.encode(value.toString()));
5120                    uri.append(';');
5121                }
5122            }
5123        }
5124
5125        uri.append("end");
5126
5127        return uri.toString();
5128    }
5129
5130    public int describeContents() {
5131        return (mExtras != null) ? mExtras.describeContents() : 0;
5132    }
5133
5134    public void writeToParcel(Parcel out, int flags) {
5135        out.writeString(mAction);
5136        Uri.writeToParcel(out, mData);
5137        out.writeString(mType);
5138        out.writeInt(mFlags);
5139        out.writeString(mPackage);
5140        ComponentName.writeToParcel(mComponent, out);
5141
5142        if (mCategories != null) {
5143            out.writeInt(mCategories.size());
5144            for (String category : mCategories) {
5145                out.writeString(category);
5146            }
5147        } else {
5148            out.writeInt(0);
5149        }
5150
5151        out.writeBundle(mExtras);
5152    }
5153
5154    public static final Parcelable.Creator<Intent> CREATOR
5155            = new Parcelable.Creator<Intent>() {
5156        public Intent createFromParcel(Parcel in) {
5157            return new Intent(in);
5158        }
5159        public Intent[] newArray(int size) {
5160            return new Intent[size];
5161        }
5162    };
5163
5164    /** @hide */
5165    protected Intent(Parcel in) {
5166        readFromParcel(in);
5167    }
5168
5169    public void readFromParcel(Parcel in) {
5170        mAction = in.readString();
5171        mData = Uri.CREATOR.createFromParcel(in);
5172        mType = in.readString();
5173        mFlags = in.readInt();
5174        mPackage = in.readString();
5175        mComponent = ComponentName.readFromParcel(in);
5176
5177        int N = in.readInt();
5178        if (N > 0) {
5179            mCategories = new HashSet<String>();
5180            int i;
5181            for (i=0; i<N; i++) {
5182                mCategories.add(in.readString());
5183            }
5184        } else {
5185            mCategories = null;
5186        }
5187
5188        mExtras = in.readBundle();
5189    }
5190
5191    /**
5192     * Parses the "intent" element (and its children) from XML and instantiates
5193     * an Intent object.  The given XML parser should be located at the tag
5194     * where parsing should start (often named "intent"), from which the
5195     * basic action, data, type, and package and class name will be
5196     * retrieved.  The function will then parse in to any child elements,
5197     * looking for <category android:name="xxx"> tags to add categories and
5198     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5199     * to the intent.
5200     *
5201     * @param resources The Resources to use when inflating resources.
5202     * @param parser The XML parser pointing at an "intent" tag.
5203     * @param attrs The AttributeSet interface for retrieving extended
5204     * attribute data at the current <var>parser</var> location.
5205     * @return An Intent object matching the XML data.
5206     * @throws XmlPullParserException If there was an XML parsing error.
5207     * @throws IOException If there was an I/O error.
5208     */
5209    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5210            throws XmlPullParserException, IOException {
5211        Intent intent = new Intent();
5212
5213        TypedArray sa = resources.obtainAttributes(attrs,
5214                com.android.internal.R.styleable.Intent);
5215
5216        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5217
5218        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5219        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5220        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5221
5222        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5223        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5224        if (packageName != null && className != null) {
5225            intent.setComponent(new ComponentName(packageName, className));
5226        }
5227
5228        sa.recycle();
5229
5230        int outerDepth = parser.getDepth();
5231        int type;
5232        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5233               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5234            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5235                continue;
5236            }
5237
5238            String nodeName = parser.getName();
5239            if (nodeName.equals("category")) {
5240                sa = resources.obtainAttributes(attrs,
5241                        com.android.internal.R.styleable.IntentCategory);
5242                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5243                sa.recycle();
5244
5245                if (cat != null) {
5246                    intent.addCategory(cat);
5247                }
5248                XmlUtils.skipCurrentTag(parser);
5249
5250            } else if (nodeName.equals("extra")) {
5251                if (intent.mExtras == null) {
5252                    intent.mExtras = new Bundle();
5253                }
5254                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5255                XmlUtils.skipCurrentTag(parser);
5256
5257            } else {
5258                XmlUtils.skipCurrentTag(parser);
5259            }
5260        }
5261
5262        return intent;
5263    }
5264}
5265