Intent.java revision 86a72dacbea3331cd5423c1f2f6ecbfae535e57c
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     * </ul>
1682     * </ul>
1683     */
1684    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1685    public static final String ACTION_HEADSET_PLUG =
1686            "android.intent.action.HEADSET_PLUG";
1687
1688    /**
1689     * Broadcast Action: An outgoing call is about to be placed.
1690     *
1691     * <p>The Intent will have the following extra value:
1692     * <ul>
1693     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1694     *       the phone number originally intended to be dialed.</li>
1695     * </ul>
1696     * <p>Once the broadcast is finished, the resultData is used as the actual
1697     * number to call.  If  <code>null</code>, no call will be placed.</p>
1698     * <p>It is perfectly acceptable for multiple receivers to process the
1699     * outgoing call in turn: for example, a parental control application
1700     * might verify that the user is authorized to place the call at that
1701     * time, then a number-rewriting application might add an area code if
1702     * one was not specified.</p>
1703     * <p>For consistency, any receiver whose purpose is to prohibit phone
1704     * calls should have a priority of 0, to ensure it will see the final
1705     * phone number to be dialed.
1706     * Any receiver whose purpose is to rewrite phone numbers to be called
1707     * should have a positive priority.
1708     * Negative priorities are reserved for the system for this broadcast;
1709     * using them may cause problems.</p>
1710     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1711     * abort the broadcast.</p>
1712     * <p>Emergency calls cannot be intercepted using this mechanism, and
1713     * other calls cannot be modified to call emergency numbers using this
1714     * mechanism.
1715     * <p>You must hold the
1716     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1717     * permission to receive this Intent.</p>
1718     *
1719     * <p class="note">This is a protected intent that can only be sent
1720     * by the system.
1721     */
1722    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1723    public static final String ACTION_NEW_OUTGOING_CALL =
1724            "android.intent.action.NEW_OUTGOING_CALL";
1725
1726    /**
1727     * Broadcast Action: Have the device reboot.  This is only for use by
1728     * system code.
1729     *
1730     * <p class="note">This is a protected intent that can only be sent
1731     * by the system.
1732     */
1733    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1734    public static final String ACTION_REBOOT =
1735            "android.intent.action.REBOOT";
1736
1737    /**
1738     * Broadcast Action:  A sticky broadcast indicating the phone was docked
1739     * or undocked.  Includes the extra
1740     * field {@link #EXTRA_DOCK_STATE}, containing the current dock state.
1741     * This is intended for monitoring the current dock state.
1742     * To launch an activity from a dock state change, use {@link #CATEGORY_CAR_DOCK}
1743     * or {@link #CATEGORY_DESK_DOCK} instead.
1744     */
1745    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1746    public static final String ACTION_DOCK_EVENT =
1747            "android.intent.action.DOCK_EVENT";
1748
1749    /**
1750     * Broadcast Action: a remote intent is to be broadcasted.
1751     *
1752     * A remote intent is used for remote RPC between devices. The remote intent
1753     * is serialized and sent from one device to another device. The receiving
1754     * device parses the remote intent and broadcasts it. Note that anyone can
1755     * broadcast a remote intent. However, if the intent receiver of the remote intent
1756     * does not trust intent broadcasts from arbitrary intent senders, it should require
1757     * the sender to hold certain permissions so only trusted sender's broadcast will be
1758     * let through.
1759     * @hide
1760     */
1761    public static final String ACTION_REMOTE_INTENT =
1762            "android.intent.action.REMOTE_INTENT";
1763
1764    /**
1765     * Broadcast Action: hook for permforming cleanup after a system update.
1766     *
1767     * The broadcast is sent when the system is booting, before the
1768     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1769     * image.  A receiver for this should do its work and then disable itself
1770     * so that it does not get run again at the next boot.
1771     * @hide
1772     */
1773    public static final String ACTION_PRE_BOOT_COMPLETED =
1774            "android.intent.action.PRE_BOOT_COMPLETED";
1775
1776    // ---------------------------------------------------------------------
1777    // ---------------------------------------------------------------------
1778    // Standard intent categories (see addCategory()).
1779
1780    /**
1781     * Set if the activity should be an option for the default action
1782     * (center press) to perform on a piece of data.  Setting this will
1783     * hide from the user any activities without it set when performing an
1784     * action on some data.  Note that this is normal -not- set in the
1785     * Intent when initiating an action -- it is for use in intent filters
1786     * specified in packages.
1787     */
1788    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1789    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1790    /**
1791     * Activities that can be safely invoked from a browser must support this
1792     * category.  For example, if the user is viewing a web page or an e-mail
1793     * and clicks on a link in the text, the Intent generated execute that
1794     * link will require the BROWSABLE category, so that only activities
1795     * supporting this category will be considered as possible actions.  By
1796     * supporting this category, you are promising that there is nothing
1797     * damaging (without user intervention) that can happen by invoking any
1798     * matching Intent.
1799     */
1800    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1801    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1802    /**
1803     * Set if the activity should be considered as an alternative action to
1804     * the data the user is currently viewing.  See also
1805     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1806     * applies to the selection in a list of items.
1807     *
1808     * <p>Supporting this category means that you would like your activity to be
1809     * displayed in the set of alternative things the user can do, usually as
1810     * part of the current activity's options menu.  You will usually want to
1811     * include a specific label in the &lt;intent-filter&gt; of this action
1812     * describing to the user what it does.
1813     *
1814     * <p>The action of IntentFilter with this category is important in that it
1815     * describes the specific action the target will perform.  This generally
1816     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1817     * a specific name such as "com.android.camera.action.CROP.  Only one
1818     * alternative of any particular action will be shown to the user, so using
1819     * a specific action like this makes sure that your alternative will be
1820     * displayed while also allowing other applications to provide their own
1821     * overrides of that particular action.
1822     */
1823    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1824    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1825    /**
1826     * Set if the activity should be considered as an alternative selection
1827     * action to the data the user has currently selected.  This is like
1828     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1829     * of items from which the user can select, giving them alternatives to the
1830     * default action that will be performed on it.
1831     */
1832    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1833    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1834    /**
1835     * Intended to be used as a tab inside of an containing TabActivity.
1836     */
1837    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1838    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1839    /**
1840     * Should be displayed in the top-level launcher.
1841     */
1842    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1843    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1844    /**
1845     * Provides information about the package it is in; typically used if
1846     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1847     * a front-door to the user without having to be shown in the all apps list.
1848     */
1849    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1850    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1851    /**
1852     * This is the home activity, that is the first activity that is displayed
1853     * when the device boots.
1854     */
1855    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1856    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1857    /**
1858     * This activity is a preference panel.
1859     */
1860    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1861    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1862    /**
1863     * This activity is a development preference panel.
1864     */
1865    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1866    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1867    /**
1868     * Capable of running inside a parent activity container.
1869     */
1870    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1871    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1872    /**
1873     * This activity may be exercised by the monkey or other automated test tools.
1874     */
1875    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1876    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1877    /**
1878     * To be used as a test (not part of the normal user experience).
1879     */
1880    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1881    /**
1882     * To be used as a unit test (run through the Test Harness).
1883     */
1884    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1885    /**
1886     * To be used as an sample code example (not part of the normal user
1887     * experience).
1888     */
1889    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1890    /**
1891     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1892     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1893     * when queried, though it is allowable for those columns to be blank.
1894     */
1895    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1896    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1897
1898    /**
1899     * To be used as code under test for framework instrumentation tests.
1900     */
1901    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1902            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1903    /**
1904     * An activity to run when device is inserted into a car dock.
1905     * Used with {@link #ACTION_MAIN} to launch an activity.
1906     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1907     */
1908    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1909    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
1910    /**
1911     * An activity to run when device is inserted into a car dock.
1912     * Used with {@link #ACTION_MAIN} to launch an activity.
1913     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1914     */
1915    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1916    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
1917
1918    // ---------------------------------------------------------------------
1919    // ---------------------------------------------------------------------
1920    // Standard extra data keys.
1921
1922    /**
1923     * The initial data to place in a newly created record.  Use with
1924     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1925     * fields as would be given to the underlying ContentProvider.insert()
1926     * call.
1927     */
1928    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1929
1930    /**
1931     * A constant CharSequence that is associated with the Intent, used with
1932     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1933     * this may be a styled CharSequence, so you must use
1934     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1935     * retrieve it.
1936     */
1937    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1938
1939    /**
1940     * A content: URI holding a stream of data associated with the Intent,
1941     * used with {@link #ACTION_SEND} to supply the data being sent.
1942     */
1943    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1944
1945    /**
1946     * A String[] holding e-mail addresses that should be delivered to.
1947     */
1948    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1949
1950    /**
1951     * A String[] holding e-mail addresses that should be carbon copied.
1952     */
1953    public static final String EXTRA_CC       = "android.intent.extra.CC";
1954
1955    /**
1956     * A String[] holding e-mail addresses that should be blind carbon copied.
1957     */
1958    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1959
1960    /**
1961     * A constant string holding the desired subject line of a message.
1962     */
1963    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1964
1965    /**
1966     * An Intent describing the choices you would like shown with
1967     * {@link #ACTION_PICK_ACTIVITY}.
1968     */
1969    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1970
1971    /**
1972     * A CharSequence dialog title to provide to the user when used with a
1973     * {@link #ACTION_CHOOSER}.
1974     */
1975    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1976
1977    /**
1978     * A Parcelable[] of {@link Intent} or
1979     * {@link android.content.pm.LabeledIntent} objects as set with
1980     * {@link #putExtra(String, Parcelable[])} of additional activities to place
1981     * a the front of the list of choices, when shown to the user with a
1982     * {@link #ACTION_CHOOSER}.
1983     */
1984    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
1985
1986    /**
1987     * A {@link android.view.KeyEvent} object containing the event that
1988     * triggered the creation of the Intent it is in.
1989     */
1990    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1991
1992    /**
1993     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
1994     * before shutting down.
1995     *
1996     * {@hide}
1997     */
1998    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
1999
2000    /**
2001     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2002     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
2003     * of restarting the application.
2004     */
2005    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
2006
2007    /**
2008     * A String holding the phone number originally entered in
2009     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
2010     * number to call in a {@link android.content.Intent#ACTION_CALL}.
2011     */
2012    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
2013    /**
2014     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
2015     * intents to supply the uid the package had been assigned.  Also an optional
2016     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2017     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2018     * purpose.
2019     */
2020    public static final String EXTRA_UID = "android.intent.extra.UID";
2021
2022    /**
2023     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2024     * intents to indicate whether this represents a full uninstall (removing
2025     * both the code and its data) or a partial uninstall (leaving its data,
2026     * implying that this is an update).
2027     */
2028    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2029
2030    /**
2031     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2032     * intents to indicate that this is a replacement of the package, so this
2033     * broadcast will immediately be followed by an add broadcast for a
2034     * different version of the same package.
2035     */
2036    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2037
2038    /**
2039     * Used as an int extra field in {@link android.app.AlarmManager} intents
2040     * to tell the application being invoked how many pending alarms are being
2041     * delievered with the intent.  For one-shot alarms this will always be 1.
2042     * For recurring alarms, this might be greater than 1 if the device was
2043     * asleep or powered off at the time an earlier alarm would have been
2044     * delivered.
2045     */
2046    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2047
2048    /**
2049     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2050     * intents to request the dock state.  Possible values are
2051     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2052     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2053     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
2054     */
2055    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2056
2057    /**
2058     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2059     * to represent that the phone is not in any dock.
2060     */
2061    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2062
2063    /**
2064     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2065     * to represent that the phone is in a desk dock.
2066     */
2067    public static final int EXTRA_DOCK_STATE_DESK = 1;
2068
2069    /**
2070     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2071     * to represent that the phone is in a car dock.
2072     */
2073    public static final int EXTRA_DOCK_STATE_CAR = 2;
2074
2075    /**
2076     * Boolean that can be supplied as meta-data with a dock activity, to
2077     * indicate that the dock should take over the home key when it is active.
2078     */
2079    public static final String METADATA_DOCK_HOME = "android.dock_home";
2080
2081    /**
2082     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2083     * the bug report.
2084     *
2085     * @hide
2086     */
2087    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2088
2089    /**
2090     * Used as a string extra field when sending an intent to PackageInstaller to install a
2091     * package. Specifies the installer package name; this package will receive the
2092     * {@link #ACTION_APP_ERROR} intent.
2093     *
2094     * @hide
2095     */
2096    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2097            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2098
2099    /**
2100     * Used in the extra field in the remote intent. It's astring token passed with the
2101     * remote intent.
2102     */
2103    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2104            "android.intent.extra.remote_intent_token";
2105
2106    /**
2107     * @Deprecated See {@link #EXTRA_CHANGED_COMPONENT_NAME_LIST}; this field
2108     * will contain only the first name in the list.
2109     */
2110    public static final String EXTRA_CHANGED_COMPONENT_NAME =
2111            "android.intent.extra.changed_component_name";
2112
2113    /**
2114     * This field is part of {@link android.content.Intent#ACTION_PACKAGE_CHANGED}
2115     * and contains a string array of all of the components that have changed.
2116     */
2117    public static final String EXTRA_CHANGED_COMPONENT_NAME_LIST =
2118            "android.intent.extra.changed_component_name_list";
2119
2120    /**
2121     * @hide
2122     * Magic extra system code can use when binding, to give a label for
2123     * who it is that has bound to a service.  This is an integer giving
2124     * a framework string resource that can be displayed to the user.
2125     */
2126    public static final String EXTRA_CLIENT_LABEL =
2127            "android.intent.extra.client_label";
2128
2129    /**
2130     * @hide
2131     * Magic extra system code can use when binding, to give a PendingIntent object
2132     * that can be launched for the user to disable the system's use of this
2133     * service.
2134     */
2135    public static final String EXTRA_CLIENT_INTENT =
2136            "android.intent.extra.client_intent";
2137
2138    // ---------------------------------------------------------------------
2139    // ---------------------------------------------------------------------
2140    // Intent flags (see mFlags variable).
2141
2142    /**
2143     * If set, the recipient of this Intent will be granted permission to
2144     * perform read operations on the Uri in the Intent's data.
2145     */
2146    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2147    /**
2148     * If set, the recipient of this Intent will be granted permission to
2149     * perform write operations on the Uri in the Intent's data.
2150     */
2151    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2152    /**
2153     * Can be set by the caller to indicate that this Intent is coming from
2154     * a background operation, not from direct user interaction.
2155     */
2156    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2157    /**
2158     * A flag you can enable for debugging: when set, log messages will be
2159     * printed during the resolution of this intent to show you what has
2160     * been found to create the final resolved list.
2161     */
2162    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2163
2164    /**
2165     * If set, the new activity is not kept in the history stack.  As soon as
2166     * the user navigates away from it, the activity is finished.  This may also
2167     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2168     * noHistory} attribute.
2169     */
2170    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2171    /**
2172     * If set, the activity will not be launched if it is already running
2173     * at the top of the history stack.
2174     */
2175    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2176    /**
2177     * If set, this activity will become the start of a new task on this
2178     * history stack.  A task (from the activity that started it to the
2179     * next task activity) defines an atomic group of activities that the
2180     * user can move to.  Tasks can be moved to the foreground and background;
2181     * all of the activities inside of a particular task always remain in
2182     * the same order.  See
2183     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2184     * Activities and Tasks</a> for more details on tasks.
2185     *
2186     * <p>This flag is generally used by activities that want
2187     * to present a "launcher" style behavior: they give the user a list of
2188     * separate things that can be done, which otherwise run completely
2189     * independently of the activity launching them.
2190     *
2191     * <p>When using this flag, if a task is already running for the activity
2192     * you are now starting, then a new activity will not be started; instead,
2193     * the current task will simply be brought to the front of the screen with
2194     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2195     * to disable this behavior.
2196     *
2197     * <p>This flag can not be used when the caller is requesting a result from
2198     * the activity being launched.
2199     */
2200    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2201    /**
2202     * <strong>Do not use this flag unless you are implementing your own
2203     * top-level application launcher.</strong>  Used in conjunction with
2204     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2205     * behavior of bringing an existing task to the foreground.  When set,
2206     * a new task is <em>always</em> started to host the Activity for the
2207     * Intent, regardless of whether there is already an existing task running
2208     * the same thing.
2209     *
2210     * <p><strong>Because the default system does not include graphical task management,
2211     * you should not use this flag unless you provide some way for a user to
2212     * return back to the tasks you have launched.</strong>
2213     *
2214     * <p>This flag is ignored if
2215     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2216     *
2217     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2218     * Activities and Tasks</a> for more details on tasks.
2219     */
2220    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2221    /**
2222     * If set, and the activity being launched is already running in the
2223     * current task, then instead of launching a new instance of that activity,
2224     * all of the other activities on top of it will be closed and this Intent
2225     * will be delivered to the (now on top) old activity as a new Intent.
2226     *
2227     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2228     * If D calls startActivity() with an Intent that resolves to the component
2229     * of activity B, then C and D will be finished and B receive the given
2230     * Intent, resulting in the stack now being: A, B.
2231     *
2232     * <p>The currently running instance of activity B in the above example will
2233     * either receive the new intent you are starting here in its
2234     * onNewIntent() method, or be itself finished and restarted with the
2235     * new intent.  If it has declared its launch mode to be "multiple" (the
2236     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2237     * the same intent, then it will be finished and re-created; for all other
2238     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2239     * Intent will be delivered to the current instance's onNewIntent().
2240     *
2241     * <p>This launch mode can also be used to good effect in conjunction with
2242     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2243     * of a task, it will bring any currently running instance of that task
2244     * to the foreground, and then clear it to its root state.  This is
2245     * especially useful, for example, when launching an activity from the
2246     * notification manager.
2247     *
2248     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2249     * Activities and Tasks</a> for more details on tasks.
2250     */
2251    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2252    /**
2253     * If set and this intent is being used to launch a new activity from an
2254     * existing one, then the reply target of the existing activity will be
2255     * transfered to the new activity.  This way the new activity can call
2256     * {@link android.app.Activity#setResult} and have that result sent back to
2257     * the reply target of the original activity.
2258     */
2259    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2260    /**
2261     * If set and this intent is being used to launch a new activity from an
2262     * existing one, the current activity will not be counted as the top
2263     * activity for deciding whether the new intent should be delivered to
2264     * the top instead of starting a new one.  The previous activity will
2265     * be used as the top, with the assumption being that the current activity
2266     * will finish itself immediately.
2267     */
2268    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2269    /**
2270     * If set, the new activity is not kept in the list of recently launched
2271     * activities.
2272     */
2273    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2274    /**
2275     * This flag is not normally set by application code, but set for you by
2276     * the system as described in the
2277     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2278     * launchMode} documentation for the singleTask mode.
2279     */
2280    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2281    /**
2282     * If set, and this activity is either being started in a new task or
2283     * bringing to the top an existing task, then it will be launched as
2284     * the front door of the task.  This will result in the application of
2285     * any affinities needed to have that task in the proper state (either
2286     * moving activities to or from it), or simply resetting that task to
2287     * its initial state if needed.
2288     */
2289    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2290    /**
2291     * This flag is not normally set by application code, but set for you by
2292     * the system if this activity is being launched from history
2293     * (longpress home key).
2294     */
2295    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2296    /**
2297     * If set, this marks a point in the task's activity stack that should
2298     * be cleared when the task is reset.  That is, the next time the task
2299     * is brought to the foreground with
2300     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2301     * the user re-launching it from home), this activity and all on top of
2302     * it will be finished so that the user does not return to them, but
2303     * instead returns to whatever activity preceeded it.
2304     *
2305     * <p>This is useful for cases where you have a logical break in your
2306     * application.  For example, an e-mail application may have a command
2307     * to view an attachment, which launches an image view activity to
2308     * display it.  This activity should be part of the e-mail application's
2309     * task, since it is a part of the task the user is involved in.  However,
2310     * if the user leaves that task, and later selects the e-mail app from
2311     * home, we may like them to return to the conversation they were
2312     * viewing, not the picture attachment, since that is confusing.  By
2313     * setting this flag when launching the image viewer, that viewer and
2314     * any activities it starts will be removed the next time the user returns
2315     * to mail.
2316     */
2317    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2318    /**
2319     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2320     * callback from occurring on the current frontmost activity before it is
2321     * paused as the newly-started activity is brought to the front.
2322     *
2323     * <p>Typically, an activity can rely on that callback to indicate that an
2324     * explicit user action has caused their activity to be moved out of the
2325     * foreground. The callback marks an appropriate point in the activity's
2326     * lifecycle for it to dismiss any notifications that it intends to display
2327     * "until the user has seen them," such as a blinking LED.
2328     *
2329     * <p>If an activity is ever started via any non-user-driven events such as
2330     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2331     * Context#startActivity Context.startActivity}, ensuring that the pausing
2332     * activity does not think the user has acknowledged its notification.
2333     */
2334    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2335    /**
2336     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2337     * this flag will cause the launched activity to be brought to the front of its
2338     * task's history stack if it is already running.
2339     *
2340     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2341     * If D calls startActivity() with an Intent that resolves to the component
2342     * of activity B, then B will be brought to the front of the history stack,
2343     * with this resulting order:  A, C, D, B.
2344     *
2345     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2346     * specified.
2347     */
2348    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2349    /**
2350     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2351     * this flag will prevent the system from applying an activity transition
2352     * animation to go to the next activity state.  This doesn't mean an
2353     * animation will never run -- if another activity change happens that doesn't
2354     * specify this flag before the activity started here is displayed, then
2355     * that transition will be used.  This this flag can be put to good use
2356     * when you are going to do a series of activity operations but the
2357     * animation seen by the user shouldn't be driven by the first activity
2358     * change but rather a later one.
2359     */
2360    public static final int FLAG_ACTIVITY_NO_ANIMATION = 0X00010000;
2361    /**
2362     * If set, when sending a broadcast only registered receivers will be
2363     * called -- no BroadcastReceiver components will be launched.
2364     */
2365    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2366    /**
2367     * If set, when sending a broadcast <i>before boot has completed</i> only
2368     * registered receivers will be called -- no BroadcastReceiver components
2369     * will be launched.  Sticky intent state will be recorded properly even
2370     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2371     * is specified in the broadcast intent, this flag is unnecessary.
2372     *
2373     * <p>This flag is only for use by system sevices as a convenience to
2374     * avoid having to implement a more complex mechanism around detection
2375     * of boot completion.
2376     *
2377     * @hide
2378     */
2379    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2380    /**
2381     * Set when this broadcast is for a boot upgrade, a special mode that
2382     * allows the broadcast to be sent before the system is ready and launches
2383     * the app process with no providers running in it.
2384     * @hide
2385     */
2386    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x10000000;
2387
2388    /**
2389     * @hide Flags that can't be changed with PendingIntent.
2390     */
2391    public static final int IMMUTABLE_FLAGS =
2392            FLAG_GRANT_READ_URI_PERMISSION
2393            | FLAG_GRANT_WRITE_URI_PERMISSION;
2394
2395    // ---------------------------------------------------------------------
2396    // ---------------------------------------------------------------------
2397    // toUri() and parseUri() options.
2398
2399    /**
2400     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2401     * always has the "intent:" scheme.  This syntax can be used when you want
2402     * to later disambiguate between URIs that are intended to describe an
2403     * Intent vs. all others that should be treated as raw URIs.  When used
2404     * with {@link #parseUri}, any other scheme will result in a generic
2405     * VIEW action for that raw URI.
2406     */
2407    public static final int URI_INTENT_SCHEME = 1<<0;
2408
2409    // ---------------------------------------------------------------------
2410
2411    private String mAction;
2412    private Uri mData;
2413    private String mType;
2414    private String mPackage;
2415    private ComponentName mComponent;
2416    private int mFlags;
2417    private HashSet<String> mCategories;
2418    private Bundle mExtras;
2419
2420    // ---------------------------------------------------------------------
2421
2422    /**
2423     * Create an empty intent.
2424     */
2425    public Intent() {
2426    }
2427
2428    /**
2429     * Copy constructor.
2430     */
2431    public Intent(Intent o) {
2432        this.mAction = o.mAction;
2433        this.mData = o.mData;
2434        this.mType = o.mType;
2435        this.mPackage = o.mPackage;
2436        this.mComponent = o.mComponent;
2437        this.mFlags = o.mFlags;
2438        if (o.mCategories != null) {
2439            this.mCategories = new HashSet<String>(o.mCategories);
2440        }
2441        if (o.mExtras != null) {
2442            this.mExtras = new Bundle(o.mExtras);
2443        }
2444    }
2445
2446    @Override
2447    public Object clone() {
2448        return new Intent(this);
2449    }
2450
2451    private Intent(Intent o, boolean all) {
2452        this.mAction = o.mAction;
2453        this.mData = o.mData;
2454        this.mType = o.mType;
2455        this.mPackage = o.mPackage;
2456        this.mComponent = o.mComponent;
2457        if (o.mCategories != null) {
2458            this.mCategories = new HashSet<String>(o.mCategories);
2459        }
2460    }
2461
2462    /**
2463     * Make a clone of only the parts of the Intent that are relevant for
2464     * filter matching: the action, data, type, component, and categories.
2465     */
2466    public Intent cloneFilter() {
2467        return new Intent(this, false);
2468    }
2469
2470    /**
2471     * Create an intent with a given action.  All other fields (data, type,
2472     * class) are null.  Note that the action <em>must</em> be in a
2473     * namespace because Intents are used globally in the system -- for
2474     * example the system VIEW action is android.intent.action.VIEW; an
2475     * application's custom action would be something like
2476     * com.google.app.myapp.CUSTOM_ACTION.
2477     *
2478     * @param action The Intent action, such as ACTION_VIEW.
2479     */
2480    public Intent(String action) {
2481        mAction = action;
2482    }
2483
2484    /**
2485     * Create an intent with a given action and for a given data url.  Note
2486     * that the action <em>must</em> be in a namespace because Intents are
2487     * used globally in the system -- for example the system VIEW action is
2488     * android.intent.action.VIEW; an application's custom action would be
2489     * something like com.google.app.myapp.CUSTOM_ACTION.
2490     *
2491     * <p><em>Note: scheme and host name matching in the Android framework is
2492     * case-sensitive, unlike the formal RFC.  As a result,
2493     * you should always ensure that you write your Uri with these elements
2494     * using lower case letters, and normalize any Uris you receive from
2495     * outside of Android to ensure the scheme and host is lower case.</em></p>
2496     *
2497     * @param action The Intent action, such as ACTION_VIEW.
2498     * @param uri The Intent data URI.
2499     */
2500    public Intent(String action, Uri uri) {
2501        mAction = action;
2502        mData = uri;
2503    }
2504
2505    /**
2506     * Create an intent for a specific component.  All other fields (action, data,
2507     * type, class) are null, though they can be modified later with explicit
2508     * calls.  This provides a convenient way to create an intent that is
2509     * intended to execute a hard-coded class name, rather than relying on the
2510     * system to find an appropriate class for you; see {@link #setComponent}
2511     * for more information on the repercussions of this.
2512     *
2513     * @param packageContext A Context of the application package implementing
2514     * this class.
2515     * @param cls The component class that is to be used for the intent.
2516     *
2517     * @see #setClass
2518     * @see #setComponent
2519     * @see #Intent(String, android.net.Uri , Context, Class)
2520     */
2521    public Intent(Context packageContext, Class<?> cls) {
2522        mComponent = new ComponentName(packageContext, cls);
2523    }
2524
2525    /**
2526     * Create an intent for a specific component with a specified action and data.
2527     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2528     * construct the Intent and then calling {@link #setClass} to set its
2529     * class.
2530     *
2531     * <p><em>Note: scheme and host name matching in the Android framework is
2532     * case-sensitive, unlike the formal RFC.  As a result,
2533     * you should always ensure that you write your Uri with these elements
2534     * using lower case letters, and normalize any Uris you receive from
2535     * outside of Android to ensure the scheme and host is lower case.</em></p>
2536     *
2537     * @param action The Intent action, such as ACTION_VIEW.
2538     * @param uri The Intent data URI.
2539     * @param packageContext A Context of the application package implementing
2540     * this class.
2541     * @param cls The component class that is to be used for the intent.
2542     *
2543     * @see #Intent(String, android.net.Uri)
2544     * @see #Intent(Context, Class)
2545     * @see #setClass
2546     * @see #setComponent
2547     */
2548    public Intent(String action, Uri uri,
2549            Context packageContext, Class<?> cls) {
2550        mAction = action;
2551        mData = uri;
2552        mComponent = new ComponentName(packageContext, cls);
2553    }
2554
2555    /**
2556     * Call {@link #parseUri} with 0 flags.
2557     * @deprecated Use {@link #parseUri} instead.
2558     */
2559    @Deprecated
2560    public static Intent getIntent(String uri) throws URISyntaxException {
2561        return parseUri(uri, 0);
2562    }
2563
2564    /**
2565     * Create an intent from a URI.  This URI may encode the action,
2566     * category, and other intent fields, if it was returned by
2567     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2568     * will be the entire URI and its action will be ACTION_VIEW.
2569     *
2570     * <p>The URI given here must not be relative -- that is, it must include
2571     * the scheme and full path.
2572     *
2573     * @param uri The URI to turn into an Intent.
2574     * @param flags Additional processing flags.  Either 0 or
2575     * {@link #URI_INTENT_SCHEME}.
2576     *
2577     * @return Intent The newly created Intent object.
2578     *
2579     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2580     * it bad (as parsed by the Uri class) or the Intent data within the
2581     * URI is invalid.
2582     *
2583     * @see #toUri
2584     */
2585    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2586        int i = 0;
2587        try {
2588            // Validate intent scheme for if requested.
2589            if ((flags&URI_INTENT_SCHEME) != 0) {
2590                if (!uri.startsWith("intent:")) {
2591                    Intent intent = new Intent(ACTION_VIEW);
2592                    try {
2593                        intent.setData(Uri.parse(uri));
2594                    } catch (IllegalArgumentException e) {
2595                        throw new URISyntaxException(uri, e.getMessage());
2596                    }
2597                    return intent;
2598                }
2599            }
2600
2601            // simple case
2602            i = uri.lastIndexOf("#");
2603            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2604
2605            // old format Intent URI
2606            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2607
2608            // new format
2609            Intent intent = new Intent(ACTION_VIEW);
2610
2611            // fetch data part, if present
2612            String data = i >= 0 ? uri.substring(0, i) : null;
2613            String scheme = null;
2614            i += "#Intent;".length();
2615
2616            // loop over contents of Intent, all name=value;
2617            while (!uri.startsWith("end", i)) {
2618                int eq = uri.indexOf('=', i);
2619                int semi = uri.indexOf(';', eq);
2620                String value = Uri.decode(uri.substring(eq + 1, semi));
2621
2622                // action
2623                if (uri.startsWith("action=", i)) {
2624                    intent.mAction = value;
2625                }
2626
2627                // categories
2628                else if (uri.startsWith("category=", i)) {
2629                    intent.addCategory(value);
2630                }
2631
2632                // type
2633                else if (uri.startsWith("type=", i)) {
2634                    intent.mType = value;
2635                }
2636
2637                // launch  flags
2638                else if (uri.startsWith("launchFlags=", i)) {
2639                    intent.mFlags = Integer.decode(value).intValue();
2640                }
2641
2642                // package
2643                else if (uri.startsWith("package=", i)) {
2644                    intent.mPackage = value;
2645                }
2646
2647                // component
2648                else if (uri.startsWith("component=", i)) {
2649                    intent.mComponent = ComponentName.unflattenFromString(value);
2650                }
2651
2652                // scheme
2653                else if (uri.startsWith("scheme=", i)) {
2654                    scheme = value;
2655                }
2656
2657                // extra
2658                else {
2659                    String key = Uri.decode(uri.substring(i + 2, eq));
2660                    // create Bundle if it doesn't already exist
2661                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2662                    Bundle b = intent.mExtras;
2663                    // add EXTRA
2664                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2665                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2666                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2667                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2668                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2669                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2670                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2671                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2672                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2673                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2674                }
2675
2676                // move to the next item
2677                i = semi + 1;
2678            }
2679
2680            if (data != null) {
2681                if (data.startsWith("intent:")) {
2682                    data = data.substring(7);
2683                    if (scheme != null) {
2684                        data = scheme + ':' + data;
2685                    }
2686                }
2687
2688                if (data.length() > 0) {
2689                    try {
2690                        intent.mData = Uri.parse(data);
2691                    } catch (IllegalArgumentException e) {
2692                        throw new URISyntaxException(uri, e.getMessage());
2693                    }
2694                }
2695            }
2696
2697            return intent;
2698
2699        } catch (IndexOutOfBoundsException e) {
2700            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2701        }
2702    }
2703
2704    public static Intent getIntentOld(String uri) throws URISyntaxException {
2705        Intent intent;
2706
2707        int i = uri.lastIndexOf('#');
2708        if (i >= 0) {
2709            String action = null;
2710            final int intentFragmentStart = i;
2711            boolean isIntentFragment = false;
2712
2713            i++;
2714
2715            if (uri.regionMatches(i, "action(", 0, 7)) {
2716                isIntentFragment = true;
2717                i += 7;
2718                int j = uri.indexOf(')', i);
2719                action = uri.substring(i, j);
2720                i = j + 1;
2721            }
2722
2723            intent = new Intent(action);
2724
2725            if (uri.regionMatches(i, "categories(", 0, 11)) {
2726                isIntentFragment = true;
2727                i += 11;
2728                int j = uri.indexOf(')', i);
2729                while (i < j) {
2730                    int sep = uri.indexOf('!', i);
2731                    if (sep < 0) sep = j;
2732                    if (i < sep) {
2733                        intent.addCategory(uri.substring(i, sep));
2734                    }
2735                    i = sep + 1;
2736                }
2737                i = j + 1;
2738            }
2739
2740            if (uri.regionMatches(i, "type(", 0, 5)) {
2741                isIntentFragment = true;
2742                i += 5;
2743                int j = uri.indexOf(')', i);
2744                intent.mType = uri.substring(i, j);
2745                i = j + 1;
2746            }
2747
2748            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2749                isIntentFragment = true;
2750                i += 12;
2751                int j = uri.indexOf(')', i);
2752                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2753                i = j + 1;
2754            }
2755
2756            if (uri.regionMatches(i, "component(", 0, 10)) {
2757                isIntentFragment = true;
2758                i += 10;
2759                int j = uri.indexOf(')', i);
2760                int sep = uri.indexOf('!', i);
2761                if (sep >= 0 && sep < j) {
2762                    String pkg = uri.substring(i, sep);
2763                    String cls = uri.substring(sep + 1, j);
2764                    intent.mComponent = new ComponentName(pkg, cls);
2765                }
2766                i = j + 1;
2767            }
2768
2769            if (uri.regionMatches(i, "extras(", 0, 7)) {
2770                isIntentFragment = true;
2771                i += 7;
2772
2773                final int closeParen = uri.indexOf(')', i);
2774                if (closeParen == -1) throw new URISyntaxException(uri,
2775                        "EXTRA missing trailing ')'", i);
2776
2777                while (i < closeParen) {
2778                    // fetch the key value
2779                    int j = uri.indexOf('=', i);
2780                    if (j <= i + 1 || i >= closeParen) {
2781                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2782                    }
2783                    char type = uri.charAt(i);
2784                    i++;
2785                    String key = uri.substring(i, j);
2786                    i = j + 1;
2787
2788                    // get type-value
2789                    j = uri.indexOf('!', i);
2790                    if (j == -1 || j >= closeParen) j = closeParen;
2791                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2792                    String value = uri.substring(i, j);
2793                    i = j;
2794
2795                    // create Bundle if it doesn't already exist
2796                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2797
2798                    // add item to bundle
2799                    try {
2800                        switch (type) {
2801                            case 'S':
2802                                intent.mExtras.putString(key, Uri.decode(value));
2803                                break;
2804                            case 'B':
2805                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2806                                break;
2807                            case 'b':
2808                                intent.mExtras.putByte(key, Byte.parseByte(value));
2809                                break;
2810                            case 'c':
2811                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2812                                break;
2813                            case 'd':
2814                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2815                                break;
2816                            case 'f':
2817                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2818                                break;
2819                            case 'i':
2820                                intent.mExtras.putInt(key, Integer.parseInt(value));
2821                                break;
2822                            case 'l':
2823                                intent.mExtras.putLong(key, Long.parseLong(value));
2824                                break;
2825                            case 's':
2826                                intent.mExtras.putShort(key, Short.parseShort(value));
2827                                break;
2828                            default:
2829                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2830                        }
2831                    } catch (NumberFormatException e) {
2832                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2833                    }
2834
2835                    char ch = uri.charAt(i);
2836                    if (ch == ')') break;
2837                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2838                    i++;
2839                }
2840            }
2841
2842            if (isIntentFragment) {
2843                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
2844            } else {
2845                intent.mData = Uri.parse(uri);
2846            }
2847
2848            if (intent.mAction == null) {
2849                // By default, if no action is specified, then use VIEW.
2850                intent.mAction = ACTION_VIEW;
2851            }
2852
2853        } else {
2854            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2855        }
2856
2857        return intent;
2858    }
2859
2860    /**
2861     * Retrieve the general action to be performed, such as
2862     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2863     * the information in the intent should be interpreted -- most importantly,
2864     * what to do with the data returned by {@link #getData}.
2865     *
2866     * @return The action of this intent or null if none is specified.
2867     *
2868     * @see #setAction
2869     */
2870    public String getAction() {
2871        return mAction;
2872    }
2873
2874    /**
2875     * Retrieve data this intent is operating on.  This URI specifies the name
2876     * of the data; often it uses the content: scheme, specifying data in a
2877     * content provider.  Other schemes may be handled by specific activities,
2878     * such as http: by the web browser.
2879     *
2880     * @return The URI of the data this intent is targeting or null.
2881     *
2882     * @see #getScheme
2883     * @see #setData
2884     */
2885    public Uri getData() {
2886        return mData;
2887    }
2888
2889    /**
2890     * The same as {@link #getData()}, but returns the URI as an encoded
2891     * String.
2892     */
2893    public String getDataString() {
2894        return mData != null ? mData.toString() : null;
2895    }
2896
2897    /**
2898     * Return the scheme portion of the intent's data.  If the data is null or
2899     * does not include a scheme, null is returned.  Otherwise, the scheme
2900     * prefix without the final ':' is returned, i.e. "http".
2901     *
2902     * <p>This is the same as calling getData().getScheme() (and checking for
2903     * null data).
2904     *
2905     * @return The scheme of this intent.
2906     *
2907     * @see #getData
2908     */
2909    public String getScheme() {
2910        return mData != null ? mData.getScheme() : null;
2911    }
2912
2913    /**
2914     * Retrieve any explicit MIME type included in the intent.  This is usually
2915     * null, as the type is determined by the intent data.
2916     *
2917     * @return If a type was manually set, it is returned; else null is
2918     *         returned.
2919     *
2920     * @see #resolveType(ContentResolver)
2921     * @see #setType
2922     */
2923    public String getType() {
2924        return mType;
2925    }
2926
2927    /**
2928     * Return the MIME data type of this intent.  If the type field is
2929     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2930     * the type of that data is returned.  If neither fields are set, a null is
2931     * returned.
2932     *
2933     * @return The MIME type of this intent.
2934     *
2935     * @see #getType
2936     * @see #resolveType(ContentResolver)
2937     */
2938    public String resolveType(Context context) {
2939        return resolveType(context.getContentResolver());
2940    }
2941
2942    /**
2943     * Return the MIME data type of this intent.  If the type field is
2944     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2945     * the type of that data is returned.  If neither fields are set, a null is
2946     * returned.
2947     *
2948     * @param resolver A ContentResolver that can be used to determine the MIME
2949     *                 type of the intent's data.
2950     *
2951     * @return The MIME type of this intent.
2952     *
2953     * @see #getType
2954     * @see #resolveType(Context)
2955     */
2956    public String resolveType(ContentResolver resolver) {
2957        if (mType != null) {
2958            return mType;
2959        }
2960        if (mData != null) {
2961            if ("content".equals(mData.getScheme())) {
2962                return resolver.getType(mData);
2963            }
2964        }
2965        return null;
2966    }
2967
2968    /**
2969     * Return the MIME data type of this intent, only if it will be needed for
2970     * intent resolution.  This is not generally useful for application code;
2971     * it is used by the frameworks for communicating with back-end system
2972     * services.
2973     *
2974     * @param resolver A ContentResolver that can be used to determine the MIME
2975     *                 type of the intent's data.
2976     *
2977     * @return The MIME type of this intent, or null if it is unknown or not
2978     *         needed.
2979     */
2980    public String resolveTypeIfNeeded(ContentResolver resolver) {
2981        if (mComponent != null) {
2982            return mType;
2983        }
2984        return resolveType(resolver);
2985    }
2986
2987    /**
2988     * Check if an category exists in the intent.
2989     *
2990     * @param category The category to check.
2991     *
2992     * @return boolean True if the intent contains the category, else false.
2993     *
2994     * @see #getCategories
2995     * @see #addCategory
2996     */
2997    public boolean hasCategory(String category) {
2998        return mCategories != null && mCategories.contains(category);
2999    }
3000
3001    /**
3002     * Return the set of all categories in the intent.  If there are no categories,
3003     * returns NULL.
3004     *
3005     * @return Set The set of categories you can examine.  Do not modify!
3006     *
3007     * @see #hasCategory
3008     * @see #addCategory
3009     */
3010    public Set<String> getCategories() {
3011        return mCategories;
3012    }
3013
3014    /**
3015     * Sets the ClassLoader that will be used when unmarshalling
3016     * any Parcelable values from the extras of this Intent.
3017     *
3018     * @param loader a ClassLoader, or null to use the default loader
3019     * at the time of unmarshalling.
3020     */
3021    public void setExtrasClassLoader(ClassLoader loader) {
3022        if (mExtras != null) {
3023            mExtras.setClassLoader(loader);
3024        }
3025    }
3026
3027    /**
3028     * Returns true if an extra value is associated with the given name.
3029     * @param name the extra's name
3030     * @return true if the given extra is present.
3031     */
3032    public boolean hasExtra(String name) {
3033        return mExtras != null && mExtras.containsKey(name);
3034    }
3035
3036    /**
3037     * Returns true if the Intent's extras contain a parcelled file descriptor.
3038     * @return true if the Intent contains a parcelled file descriptor.
3039     */
3040    public boolean hasFileDescriptors() {
3041        return mExtras != null && mExtras.hasFileDescriptors();
3042    }
3043
3044    /**
3045     * Retrieve extended data from the intent.
3046     *
3047     * @param name The name of the desired item.
3048     *
3049     * @return the value of an item that previously added with putExtra()
3050     * or null if none was found.
3051     *
3052     * @deprecated
3053     * @hide
3054     */
3055    @Deprecated
3056    public Object getExtra(String name) {
3057        return getExtra(name, null);
3058    }
3059
3060    /**
3061     * Retrieve extended data from the intent.
3062     *
3063     * @param name The name of the desired item.
3064     * @param defaultValue the value to be returned if no value of the desired
3065     * type is stored with the given name.
3066     *
3067     * @return the value of an item that previously added with putExtra()
3068     * or the default value if none was found.
3069     *
3070     * @see #putExtra(String, boolean)
3071     */
3072    public boolean getBooleanExtra(String name, boolean defaultValue) {
3073        return mExtras == null ? defaultValue :
3074            mExtras.getBoolean(name, defaultValue);
3075    }
3076
3077    /**
3078     * Retrieve extended data from the intent.
3079     *
3080     * @param name The name of the desired item.
3081     * @param defaultValue the value to be returned if no value of the desired
3082     * type is stored with the given name.
3083     *
3084     * @return the value of an item that previously added with putExtra()
3085     * or the default value if none was found.
3086     *
3087     * @see #putExtra(String, byte)
3088     */
3089    public byte getByteExtra(String name, byte defaultValue) {
3090        return mExtras == null ? defaultValue :
3091            mExtras.getByte(name, defaultValue);
3092    }
3093
3094    /**
3095     * Retrieve extended data from the intent.
3096     *
3097     * @param name The name of the desired item.
3098     * @param defaultValue the value to be returned if no value of the desired
3099     * type is stored with the given name.
3100     *
3101     * @return the value of an item that previously added with putExtra()
3102     * or the default value if none was found.
3103     *
3104     * @see #putExtra(String, short)
3105     */
3106    public short getShortExtra(String name, short defaultValue) {
3107        return mExtras == null ? defaultValue :
3108            mExtras.getShort(name, defaultValue);
3109    }
3110
3111    /**
3112     * Retrieve extended data from the intent.
3113     *
3114     * @param name The name of the desired item.
3115     * @param defaultValue the value to be returned if no value of the desired
3116     * type is stored with the given name.
3117     *
3118     * @return the value of an item that previously added with putExtra()
3119     * or the default value if none was found.
3120     *
3121     * @see #putExtra(String, char)
3122     */
3123    public char getCharExtra(String name, char defaultValue) {
3124        return mExtras == null ? defaultValue :
3125            mExtras.getChar(name, defaultValue);
3126    }
3127
3128    /**
3129     * Retrieve extended data from the intent.
3130     *
3131     * @param name The name of the desired item.
3132     * @param defaultValue the value to be returned if no value of the desired
3133     * type is stored with the given name.
3134     *
3135     * @return the value of an item that previously added with putExtra()
3136     * or the default value if none was found.
3137     *
3138     * @see #putExtra(String, int)
3139     */
3140    public int getIntExtra(String name, int defaultValue) {
3141        return mExtras == null ? defaultValue :
3142            mExtras.getInt(name, defaultValue);
3143    }
3144
3145    /**
3146     * Retrieve extended data from the intent.
3147     *
3148     * @param name The name of the desired item.
3149     * @param defaultValue the value to be returned if no value of the desired
3150     * type is stored with the given name.
3151     *
3152     * @return the value of an item that previously added with putExtra()
3153     * or the default value if none was found.
3154     *
3155     * @see #putExtra(String, long)
3156     */
3157    public long getLongExtra(String name, long defaultValue) {
3158        return mExtras == null ? defaultValue :
3159            mExtras.getLong(name, defaultValue);
3160    }
3161
3162    /**
3163     * Retrieve extended data from the intent.
3164     *
3165     * @param name The name of the desired item.
3166     * @param defaultValue the value to be returned if no value of the desired
3167     * type is stored with the given name.
3168     *
3169     * @return the value of an item that previously added with putExtra(),
3170     * or the default value if no such item is present
3171     *
3172     * @see #putExtra(String, float)
3173     */
3174    public float getFloatExtra(String name, float defaultValue) {
3175        return mExtras == null ? defaultValue :
3176            mExtras.getFloat(name, defaultValue);
3177    }
3178
3179    /**
3180     * Retrieve extended data from the intent.
3181     *
3182     * @param name The name of the desired item.
3183     * @param defaultValue the value to be returned if no value of the desired
3184     * type is stored with the given name.
3185     *
3186     * @return the value of an item that previously added with putExtra()
3187     * or the default value if none was found.
3188     *
3189     * @see #putExtra(String, double)
3190     */
3191    public double getDoubleExtra(String name, double defaultValue) {
3192        return mExtras == null ? defaultValue :
3193            mExtras.getDouble(name, defaultValue);
3194    }
3195
3196    /**
3197     * Retrieve extended data from the intent.
3198     *
3199     * @param name The name of the desired item.
3200     *
3201     * @return the value of an item that previously added with putExtra()
3202     * or null if no String value was found.
3203     *
3204     * @see #putExtra(String, String)
3205     */
3206    public String getStringExtra(String name) {
3207        return mExtras == null ? null : mExtras.getString(name);
3208    }
3209
3210    /**
3211     * Retrieve extended data from the intent.
3212     *
3213     * @param name The name of the desired item.
3214     *
3215     * @return the value of an item that previously added with putExtra()
3216     * or null if no CharSequence value was found.
3217     *
3218     * @see #putExtra(String, CharSequence)
3219     */
3220    public CharSequence getCharSequenceExtra(String name) {
3221        return mExtras == null ? null : mExtras.getCharSequence(name);
3222    }
3223
3224    /**
3225     * Retrieve extended data from the intent.
3226     *
3227     * @param name The name of the desired item.
3228     *
3229     * @return the value of an item that previously added with putExtra()
3230     * or null if no Parcelable value was found.
3231     *
3232     * @see #putExtra(String, Parcelable)
3233     */
3234    public <T extends Parcelable> T getParcelableExtra(String name) {
3235        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3236    }
3237
3238    /**
3239     * Retrieve extended data from the intent.
3240     *
3241     * @param name The name of the desired item.
3242     *
3243     * @return the value of an item that previously added with putExtra()
3244     * or null if no Parcelable[] value was found.
3245     *
3246     * @see #putExtra(String, Parcelable[])
3247     */
3248    public Parcelable[] getParcelableArrayExtra(String name) {
3249        return mExtras == null ? null : mExtras.getParcelableArray(name);
3250    }
3251
3252    /**
3253     * Retrieve extended data from the intent.
3254     *
3255     * @param name The name of the desired item.
3256     *
3257     * @return the value of an item that previously added with putExtra()
3258     * or null if no ArrayList<Parcelable> value was found.
3259     *
3260     * @see #putParcelableArrayListExtra(String, ArrayList)
3261     */
3262    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3263        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3264    }
3265
3266    /**
3267     * Retrieve extended data from the intent.
3268     *
3269     * @param name The name of the desired item.
3270     *
3271     * @return the value of an item that previously added with putExtra()
3272     * or null if no Serializable value was found.
3273     *
3274     * @see #putExtra(String, Serializable)
3275     */
3276    public Serializable getSerializableExtra(String name) {
3277        return mExtras == null ? null : mExtras.getSerializable(name);
3278    }
3279
3280    /**
3281     * Retrieve extended data from the intent.
3282     *
3283     * @param name The name of the desired item.
3284     *
3285     * @return the value of an item that previously added with putExtra()
3286     * or null if no ArrayList<Integer> value was found.
3287     *
3288     * @see #putIntegerArrayListExtra(String, ArrayList)
3289     */
3290    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3291        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3292    }
3293
3294    /**
3295     * Retrieve extended data from the intent.
3296     *
3297     * @param name The name of the desired item.
3298     *
3299     * @return the value of an item that previously added with putExtra()
3300     * or null if no ArrayList<String> value was found.
3301     *
3302     * @see #putStringArrayListExtra(String, ArrayList)
3303     */
3304    public ArrayList<String> getStringArrayListExtra(String name) {
3305        return mExtras == null ? null : mExtras.getStringArrayList(name);
3306    }
3307
3308    /**
3309     * Retrieve extended data from the intent.
3310     *
3311     * @param name The name of the desired item.
3312     *
3313     * @return the value of an item that previously added with putExtra()
3314     * or null if no boolean array value was found.
3315     *
3316     * @see #putExtra(String, boolean[])
3317     */
3318    public boolean[] getBooleanArrayExtra(String name) {
3319        return mExtras == null ? null : mExtras.getBooleanArray(name);
3320    }
3321
3322    /**
3323     * Retrieve extended data from the intent.
3324     *
3325     * @param name The name of the desired item.
3326     *
3327     * @return the value of an item that previously added with putExtra()
3328     * or null if no byte array value was found.
3329     *
3330     * @see #putExtra(String, byte[])
3331     */
3332    public byte[] getByteArrayExtra(String name) {
3333        return mExtras == null ? null : mExtras.getByteArray(name);
3334    }
3335
3336    /**
3337     * Retrieve extended data from the intent.
3338     *
3339     * @param name The name of the desired item.
3340     *
3341     * @return the value of an item that previously added with putExtra()
3342     * or null if no short array value was found.
3343     *
3344     * @see #putExtra(String, short[])
3345     */
3346    public short[] getShortArrayExtra(String name) {
3347        return mExtras == null ? null : mExtras.getShortArray(name);
3348    }
3349
3350    /**
3351     * Retrieve extended data from the intent.
3352     *
3353     * @param name The name of the desired item.
3354     *
3355     * @return the value of an item that previously added with putExtra()
3356     * or null if no char array value was found.
3357     *
3358     * @see #putExtra(String, char[])
3359     */
3360    public char[] getCharArrayExtra(String name) {
3361        return mExtras == null ? null : mExtras.getCharArray(name);
3362    }
3363
3364    /**
3365     * Retrieve extended data from the intent.
3366     *
3367     * @param name The name of the desired item.
3368     *
3369     * @return the value of an item that previously added with putExtra()
3370     * or null if no int array value was found.
3371     *
3372     * @see #putExtra(String, int[])
3373     */
3374    public int[] getIntArrayExtra(String name) {
3375        return mExtras == null ? null : mExtras.getIntArray(name);
3376    }
3377
3378    /**
3379     * Retrieve extended data from the intent.
3380     *
3381     * @param name The name of the desired item.
3382     *
3383     * @return the value of an item that previously added with putExtra()
3384     * or null if no long array value was found.
3385     *
3386     * @see #putExtra(String, long[])
3387     */
3388    public long[] getLongArrayExtra(String name) {
3389        return mExtras == null ? null : mExtras.getLongArray(name);
3390    }
3391
3392    /**
3393     * Retrieve extended data from the intent.
3394     *
3395     * @param name The name of the desired item.
3396     *
3397     * @return the value of an item that previously added with putExtra()
3398     * or null if no float array value was found.
3399     *
3400     * @see #putExtra(String, float[])
3401     */
3402    public float[] getFloatArrayExtra(String name) {
3403        return mExtras == null ? null : mExtras.getFloatArray(name);
3404    }
3405
3406    /**
3407     * Retrieve extended data from the intent.
3408     *
3409     * @param name The name of the desired item.
3410     *
3411     * @return the value of an item that previously added with putExtra()
3412     * or null if no double array value was found.
3413     *
3414     * @see #putExtra(String, double[])
3415     */
3416    public double[] getDoubleArrayExtra(String name) {
3417        return mExtras == null ? null : mExtras.getDoubleArray(name);
3418    }
3419
3420    /**
3421     * Retrieve extended data from the intent.
3422     *
3423     * @param name The name of the desired item.
3424     *
3425     * @return the value of an item that previously added with putExtra()
3426     * or null if no String array value was found.
3427     *
3428     * @see #putExtra(String, String[])
3429     */
3430    public String[] getStringArrayExtra(String name) {
3431        return mExtras == null ? null : mExtras.getStringArray(name);
3432    }
3433
3434    /**
3435     * Retrieve extended data from the intent.
3436     *
3437     * @param name The name of the desired item.
3438     *
3439     * @return the value of an item that previously added with putExtra()
3440     * or null if no Bundle value was found.
3441     *
3442     * @see #putExtra(String, Bundle)
3443     */
3444    public Bundle getBundleExtra(String name) {
3445        return mExtras == null ? null : mExtras.getBundle(name);
3446    }
3447
3448    /**
3449     * Retrieve extended data from the intent.
3450     *
3451     * @param name The name of the desired item.
3452     *
3453     * @return the value of an item that previously added with putExtra()
3454     * or null if no IBinder value was found.
3455     *
3456     * @see #putExtra(String, IBinder)
3457     *
3458     * @deprecated
3459     * @hide
3460     */
3461    @Deprecated
3462    public IBinder getIBinderExtra(String name) {
3463        return mExtras == null ? null : mExtras.getIBinder(name);
3464    }
3465
3466    /**
3467     * Retrieve extended data from the intent.
3468     *
3469     * @param name The name of the desired item.
3470     * @param defaultValue The default value to return in case no item is
3471     * associated with the key 'name'
3472     *
3473     * @return the value of an item that previously added with putExtra()
3474     * or defaultValue if none was found.
3475     *
3476     * @see #putExtra
3477     *
3478     * @deprecated
3479     * @hide
3480     */
3481    @Deprecated
3482    public Object getExtra(String name, Object defaultValue) {
3483        Object result = defaultValue;
3484        if (mExtras != null) {
3485            Object result2 = mExtras.get(name);
3486            if (result2 != null) {
3487                result = result2;
3488            }
3489        }
3490
3491        return result;
3492    }
3493
3494    /**
3495     * Retrieves a map of extended data from the intent.
3496     *
3497     * @return the map of all extras previously added with putExtra(),
3498     * or null if none have been added.
3499     */
3500    public Bundle getExtras() {
3501        return (mExtras != null)
3502                ? new Bundle(mExtras)
3503                : null;
3504    }
3505
3506    /**
3507     * Retrieve any special flags associated with this intent.  You will
3508     * normally just set them with {@link #setFlags} and let the system
3509     * take the appropriate action with them.
3510     *
3511     * @return int The currently set flags.
3512     *
3513     * @see #setFlags
3514     */
3515    public int getFlags() {
3516        return mFlags;
3517    }
3518
3519    /**
3520     * Retrieve the application package name this Intent is limited to.  When
3521     * resolving an Intent, if non-null this limits the resolution to only
3522     * components in the given application package.
3523     *
3524     * @return The name of the application package for the Intent.
3525     *
3526     * @see #resolveActivity
3527     * @see #setPackage
3528     */
3529    public String getPackage() {
3530        return mPackage;
3531    }
3532
3533    /**
3534     * Retrieve the concrete component associated with the intent.  When receiving
3535     * an intent, this is the component that was found to best handle it (that is,
3536     * yourself) and will always be non-null; in all other cases it will be
3537     * null unless explicitly set.
3538     *
3539     * @return The name of the application component to handle the intent.
3540     *
3541     * @see #resolveActivity
3542     * @see #setComponent
3543     */
3544    public ComponentName getComponent() {
3545        return mComponent;
3546    }
3547
3548    /**
3549     * Return the Activity component that should be used to handle this intent.
3550     * The appropriate component is determined based on the information in the
3551     * intent, evaluated as follows:
3552     *
3553     * <p>If {@link #getComponent} returns an explicit class, that is returned
3554     * without any further consideration.
3555     *
3556     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3557     * category to be considered.
3558     *
3559     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3560     * action.
3561     *
3562     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3563     * this type.
3564     *
3565     * <p>If {@link #addCategory} has added any categories, the activity must
3566     * handle ALL of the categories specified.
3567     *
3568     * <p>If {@link #getPackage} is non-NULL, only activity components in
3569     * that application package will be considered.
3570     *
3571     * <p>If there are no activities that satisfy all of these conditions, a
3572     * null string is returned.
3573     *
3574     * <p>If multiple activities are found to satisfy the intent, the one with
3575     * the highest priority will be used.  If there are multiple activities
3576     * with the same priority, the system will either pick the best activity
3577     * based on user preference, or resolve to a system class that will allow
3578     * the user to pick an activity and forward from there.
3579     *
3580     * <p>This method is implemented simply by calling
3581     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3582     * true.</p>
3583     * <p> This API is called for you as part of starting an activity from an
3584     * intent.  You do not normally need to call it yourself.</p>
3585     *
3586     * @param pm The package manager with which to resolve the Intent.
3587     *
3588     * @return Name of the component implementing an activity that can
3589     *         display the intent.
3590     *
3591     * @see #setComponent
3592     * @see #getComponent
3593     * @see #resolveActivityInfo
3594     */
3595    public ComponentName resolveActivity(PackageManager pm) {
3596        if (mComponent != null) {
3597            return mComponent;
3598        }
3599
3600        ResolveInfo info = pm.resolveActivity(
3601            this, PackageManager.MATCH_DEFAULT_ONLY);
3602        if (info != null) {
3603            return new ComponentName(
3604                    info.activityInfo.applicationInfo.packageName,
3605                    info.activityInfo.name);
3606        }
3607
3608        return null;
3609    }
3610
3611    /**
3612     * Resolve the Intent into an {@link ActivityInfo}
3613     * describing the activity that should execute the intent.  Resolution
3614     * follows the same rules as described for {@link #resolveActivity}, but
3615     * you get back the completely information about the resolved activity
3616     * instead of just its class name.
3617     *
3618     * @param pm The package manager with which to resolve the Intent.
3619     * @param flags Addition information to retrieve as per
3620     * {@link PackageManager#getActivityInfo(ComponentName, int)
3621     * PackageManager.getActivityInfo()}.
3622     *
3623     * @return PackageManager.ActivityInfo
3624     *
3625     * @see #resolveActivity
3626     */
3627    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3628        ActivityInfo ai = null;
3629        if (mComponent != null) {
3630            try {
3631                ai = pm.getActivityInfo(mComponent, flags);
3632            } catch (PackageManager.NameNotFoundException e) {
3633                // ignore
3634            }
3635        } else {
3636            ResolveInfo info = pm.resolveActivity(
3637                this, PackageManager.MATCH_DEFAULT_ONLY | flags);
3638            if (info != null) {
3639                ai = info.activityInfo;
3640            }
3641        }
3642
3643        return ai;
3644    }
3645
3646    /**
3647     * Set the general action to be performed.
3648     *
3649     * @param action An action name, such as ACTION_VIEW.  Application-specific
3650     *               actions should be prefixed with the vendor's package name.
3651     *
3652     * @return Returns the same Intent object, for chaining multiple calls
3653     * into a single statement.
3654     *
3655     * @see #getAction
3656     */
3657    public Intent setAction(String action) {
3658        mAction = action;
3659        return this;
3660    }
3661
3662    /**
3663     * Set the data this intent is operating on.  This method automatically
3664     * clears any type that was previously set by {@link #setType}.
3665     *
3666     * <p><em>Note: scheme and host name matching in the Android framework is
3667     * case-sensitive, unlike the formal RFC.  As a result,
3668     * you should always ensure that you write your Uri with these elements
3669     * using lower case letters, and normalize any Uris you receive from
3670     * outside of Android to ensure the scheme and host is lower case.</em></p>
3671     *
3672     * @param data The URI of the data this intent is now targeting.
3673     *
3674     * @return Returns the same Intent object, for chaining multiple calls
3675     * into a single statement.
3676     *
3677     * @see #getData
3678     * @see #setType
3679     * @see #setDataAndType
3680     */
3681    public Intent setData(Uri data) {
3682        mData = data;
3683        mType = null;
3684        return this;
3685    }
3686
3687    /**
3688     * Set an explicit MIME data type.  This is used to create intents that
3689     * only specify a type and not data, for example to indicate the type of
3690     * data to return.  This method automatically clears any data that was
3691     * previously set by {@link #setData}.
3692     *
3693     * <p><em>Note: MIME type matching in the Android framework is
3694     * case-sensitive, unlike formal RFC MIME types.  As a result,
3695     * you should always write your MIME types with lower case letters,
3696     * and any MIME types you receive from outside of Android should be
3697     * converted to lower case before supplying them here.</em></p>
3698     *
3699     * @param type The MIME type of the data being handled by this intent.
3700     *
3701     * @return Returns the same Intent object, for chaining multiple calls
3702     * into a single statement.
3703     *
3704     * @see #getType
3705     * @see #setData
3706     * @see #setDataAndType
3707     */
3708    public Intent setType(String type) {
3709        mData = null;
3710        mType = type;
3711        return this;
3712    }
3713
3714    /**
3715     * (Usually optional) Set the data for the intent along with an explicit
3716     * MIME data type.  This method should very rarely be used -- it allows you
3717     * to override the MIME type that would ordinarily be inferred from the
3718     * data with your own type given here.
3719     *
3720     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
3721     * Android framework is case-sensitive, unlike the formal RFC definitions.
3722     * As a result, you should always write these elements with lower case letters,
3723     * and normalize any MIME types or Uris you receive from
3724     * outside of Android to ensure these elements are lower case before
3725     * supplying them here.</em></p>
3726     *
3727     * @param data The URI of the data this intent is now targeting.
3728     * @param type The MIME type of the data being handled by this intent.
3729     *
3730     * @return Returns the same Intent object, for chaining multiple calls
3731     * into a single statement.
3732     *
3733     * @see #setData
3734     * @see #setType
3735     */
3736    public Intent setDataAndType(Uri data, String type) {
3737        mData = data;
3738        mType = type;
3739        return this;
3740    }
3741
3742    /**
3743     * Add a new category to the intent.  Categories provide additional detail
3744     * about the action the intent is perform.  When resolving an intent, only
3745     * activities that provide <em>all</em> of the requested categories will be
3746     * used.
3747     *
3748     * @param category The desired category.  This can be either one of the
3749     *               predefined Intent categories, or a custom category in your own
3750     *               namespace.
3751     *
3752     * @return Returns the same Intent object, for chaining multiple calls
3753     * into a single statement.
3754     *
3755     * @see #hasCategory
3756     * @see #removeCategory
3757     */
3758    public Intent addCategory(String category) {
3759        if (mCategories == null) {
3760            mCategories = new HashSet<String>();
3761        }
3762        mCategories.add(category);
3763        return this;
3764    }
3765
3766    /**
3767     * Remove an category from an intent.
3768     *
3769     * @param category The category to remove.
3770     *
3771     * @see #addCategory
3772     */
3773    public void removeCategory(String category) {
3774        if (mCategories != null) {
3775            mCategories.remove(category);
3776            if (mCategories.size() == 0) {
3777                mCategories = null;
3778            }
3779        }
3780    }
3781
3782    /**
3783     * Add extended data to the intent.  The name must include a package
3784     * prefix, for example the app com.android.contacts would use names
3785     * like "com.android.contacts.ShowAll".
3786     *
3787     * @param name The name of the extra data, with package prefix.
3788     * @param value The boolean data value.
3789     *
3790     * @return Returns the same Intent object, for chaining multiple calls
3791     * into a single statement.
3792     *
3793     * @see #putExtras
3794     * @see #removeExtra
3795     * @see #getBooleanExtra(String, boolean)
3796     */
3797    public Intent putExtra(String name, boolean value) {
3798        if (mExtras == null) {
3799            mExtras = new Bundle();
3800        }
3801        mExtras.putBoolean(name, value);
3802        return this;
3803    }
3804
3805    /**
3806     * Add extended data to the intent.  The name must include a package
3807     * prefix, for example the app com.android.contacts would use names
3808     * like "com.android.contacts.ShowAll".
3809     *
3810     * @param name The name of the extra data, with package prefix.
3811     * @param value The byte data value.
3812     *
3813     * @return Returns the same Intent object, for chaining multiple calls
3814     * into a single statement.
3815     *
3816     * @see #putExtras
3817     * @see #removeExtra
3818     * @see #getByteExtra(String, byte)
3819     */
3820    public Intent putExtra(String name, byte value) {
3821        if (mExtras == null) {
3822            mExtras = new Bundle();
3823        }
3824        mExtras.putByte(name, value);
3825        return this;
3826    }
3827
3828    /**
3829     * Add extended data to the intent.  The name must include a package
3830     * prefix, for example the app com.android.contacts would use names
3831     * like "com.android.contacts.ShowAll".
3832     *
3833     * @param name The name of the extra data, with package prefix.
3834     * @param value The char data value.
3835     *
3836     * @return Returns the same Intent object, for chaining multiple calls
3837     * into a single statement.
3838     *
3839     * @see #putExtras
3840     * @see #removeExtra
3841     * @see #getCharExtra(String, char)
3842     */
3843    public Intent putExtra(String name, char value) {
3844        if (mExtras == null) {
3845            mExtras = new Bundle();
3846        }
3847        mExtras.putChar(name, value);
3848        return this;
3849    }
3850
3851    /**
3852     * Add extended data to the intent.  The name must include a package
3853     * prefix, for example the app com.android.contacts would use names
3854     * like "com.android.contacts.ShowAll".
3855     *
3856     * @param name The name of the extra data, with package prefix.
3857     * @param value The short data value.
3858     *
3859     * @return Returns the same Intent object, for chaining multiple calls
3860     * into a single statement.
3861     *
3862     * @see #putExtras
3863     * @see #removeExtra
3864     * @see #getShortExtra(String, short)
3865     */
3866    public Intent putExtra(String name, short value) {
3867        if (mExtras == null) {
3868            mExtras = new Bundle();
3869        }
3870        mExtras.putShort(name, value);
3871        return this;
3872    }
3873
3874    /**
3875     * Add extended data to the intent.  The name must include a package
3876     * prefix, for example the app com.android.contacts would use names
3877     * like "com.android.contacts.ShowAll".
3878     *
3879     * @param name The name of the extra data, with package prefix.
3880     * @param value The integer data value.
3881     *
3882     * @return Returns the same Intent object, for chaining multiple calls
3883     * into a single statement.
3884     *
3885     * @see #putExtras
3886     * @see #removeExtra
3887     * @see #getIntExtra(String, int)
3888     */
3889    public Intent putExtra(String name, int value) {
3890        if (mExtras == null) {
3891            mExtras = new Bundle();
3892        }
3893        mExtras.putInt(name, value);
3894        return this;
3895    }
3896
3897    /**
3898     * Add extended data to the intent.  The name must include a package
3899     * prefix, for example the app com.android.contacts would use names
3900     * like "com.android.contacts.ShowAll".
3901     *
3902     * @param name The name of the extra data, with package prefix.
3903     * @param value The long data value.
3904     *
3905     * @return Returns the same Intent object, for chaining multiple calls
3906     * into a single statement.
3907     *
3908     * @see #putExtras
3909     * @see #removeExtra
3910     * @see #getLongExtra(String, long)
3911     */
3912    public Intent putExtra(String name, long value) {
3913        if (mExtras == null) {
3914            mExtras = new Bundle();
3915        }
3916        mExtras.putLong(name, value);
3917        return this;
3918    }
3919
3920    /**
3921     * Add extended data to the intent.  The name must include a package
3922     * prefix, for example the app com.android.contacts would use names
3923     * like "com.android.contacts.ShowAll".
3924     *
3925     * @param name The name of the extra data, with package prefix.
3926     * @param value The float data value.
3927     *
3928     * @return Returns the same Intent object, for chaining multiple calls
3929     * into a single statement.
3930     *
3931     * @see #putExtras
3932     * @see #removeExtra
3933     * @see #getFloatExtra(String, float)
3934     */
3935    public Intent putExtra(String name, float value) {
3936        if (mExtras == null) {
3937            mExtras = new Bundle();
3938        }
3939        mExtras.putFloat(name, value);
3940        return this;
3941    }
3942
3943    /**
3944     * Add extended data to the intent.  The name must include a package
3945     * prefix, for example the app com.android.contacts would use names
3946     * like "com.android.contacts.ShowAll".
3947     *
3948     * @param name The name of the extra data, with package prefix.
3949     * @param value The double data value.
3950     *
3951     * @return Returns the same Intent object, for chaining multiple calls
3952     * into a single statement.
3953     *
3954     * @see #putExtras
3955     * @see #removeExtra
3956     * @see #getDoubleExtra(String, double)
3957     */
3958    public Intent putExtra(String name, double value) {
3959        if (mExtras == null) {
3960            mExtras = new Bundle();
3961        }
3962        mExtras.putDouble(name, value);
3963        return this;
3964    }
3965
3966    /**
3967     * Add extended data to the intent.  The name must include a package
3968     * prefix, for example the app com.android.contacts would use names
3969     * like "com.android.contacts.ShowAll".
3970     *
3971     * @param name The name of the extra data, with package prefix.
3972     * @param value The String data value.
3973     *
3974     * @return Returns the same Intent object, for chaining multiple calls
3975     * into a single statement.
3976     *
3977     * @see #putExtras
3978     * @see #removeExtra
3979     * @see #getStringExtra(String)
3980     */
3981    public Intent putExtra(String name, String value) {
3982        if (mExtras == null) {
3983            mExtras = new Bundle();
3984        }
3985        mExtras.putString(name, value);
3986        return this;
3987    }
3988
3989    /**
3990     * Add extended data to the intent.  The name must include a package
3991     * prefix, for example the app com.android.contacts would use names
3992     * like "com.android.contacts.ShowAll".
3993     *
3994     * @param name The name of the extra data, with package prefix.
3995     * @param value The CharSequence data value.
3996     *
3997     * @return Returns the same Intent object, for chaining multiple calls
3998     * into a single statement.
3999     *
4000     * @see #putExtras
4001     * @see #removeExtra
4002     * @see #getCharSequenceExtra(String)
4003     */
4004    public Intent putExtra(String name, CharSequence value) {
4005        if (mExtras == null) {
4006            mExtras = new Bundle();
4007        }
4008        mExtras.putCharSequence(name, value);
4009        return this;
4010    }
4011
4012    /**
4013     * Add extended data to the intent.  The name must include a package
4014     * prefix, for example the app com.android.contacts would use names
4015     * like "com.android.contacts.ShowAll".
4016     *
4017     * @param name The name of the extra data, with package prefix.
4018     * @param value The Parcelable data value.
4019     *
4020     * @return Returns the same Intent object, for chaining multiple calls
4021     * into a single statement.
4022     *
4023     * @see #putExtras
4024     * @see #removeExtra
4025     * @see #getParcelableExtra(String)
4026     */
4027    public Intent putExtra(String name, Parcelable value) {
4028        if (mExtras == null) {
4029            mExtras = new Bundle();
4030        }
4031        mExtras.putParcelable(name, value);
4032        return this;
4033    }
4034
4035    /**
4036     * Add extended data to the intent.  The name must include a package
4037     * prefix, for example the app com.android.contacts would use names
4038     * like "com.android.contacts.ShowAll".
4039     *
4040     * @param name The name of the extra data, with package prefix.
4041     * @param value The Parcelable[] data value.
4042     *
4043     * @return Returns the same Intent object, for chaining multiple calls
4044     * into a single statement.
4045     *
4046     * @see #putExtras
4047     * @see #removeExtra
4048     * @see #getParcelableArrayExtra(String)
4049     */
4050    public Intent putExtra(String name, Parcelable[] value) {
4051        if (mExtras == null) {
4052            mExtras = new Bundle();
4053        }
4054        mExtras.putParcelableArray(name, value);
4055        return this;
4056    }
4057
4058    /**
4059     * Add extended data to the intent.  The name must include a package
4060     * prefix, for example the app com.android.contacts would use names
4061     * like "com.android.contacts.ShowAll".
4062     *
4063     * @param name The name of the extra data, with package prefix.
4064     * @param value The ArrayList<Parcelable> data value.
4065     *
4066     * @return Returns the same Intent object, for chaining multiple calls
4067     * into a single statement.
4068     *
4069     * @see #putExtras
4070     * @see #removeExtra
4071     * @see #getParcelableArrayListExtra(String)
4072     */
4073    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
4074        if (mExtras == null) {
4075            mExtras = new Bundle();
4076        }
4077        mExtras.putParcelableArrayList(name, value);
4078        return this;
4079    }
4080
4081    /**
4082     * Add extended data to the intent.  The name must include a package
4083     * prefix, for example the app com.android.contacts would use names
4084     * like "com.android.contacts.ShowAll".
4085     *
4086     * @param name The name of the extra data, with package prefix.
4087     * @param value The ArrayList<Integer> data value.
4088     *
4089     * @return Returns the same Intent object, for chaining multiple calls
4090     * into a single statement.
4091     *
4092     * @see #putExtras
4093     * @see #removeExtra
4094     * @see #getIntegerArrayListExtra(String)
4095     */
4096    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
4097        if (mExtras == null) {
4098            mExtras = new Bundle();
4099        }
4100        mExtras.putIntegerArrayList(name, value);
4101        return this;
4102    }
4103
4104    /**
4105     * Add extended data to the intent.  The name must include a package
4106     * prefix, for example the app com.android.contacts would use names
4107     * like "com.android.contacts.ShowAll".
4108     *
4109     * @param name The name of the extra data, with package prefix.
4110     * @param value The ArrayList<String> data value.
4111     *
4112     * @return Returns the same Intent object, for chaining multiple calls
4113     * into a single statement.
4114     *
4115     * @see #putExtras
4116     * @see #removeExtra
4117     * @see #getStringArrayListExtra(String)
4118     */
4119    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
4120        if (mExtras == null) {
4121            mExtras = new Bundle();
4122        }
4123        mExtras.putStringArrayList(name, value);
4124        return this;
4125    }
4126
4127    /**
4128     * Add extended data to the intent.  The name must include a package
4129     * prefix, for example the app com.android.contacts would use names
4130     * like "com.android.contacts.ShowAll".
4131     *
4132     * @param name The name of the extra data, with package prefix.
4133     * @param value The Serializable data value.
4134     *
4135     * @return Returns the same Intent object, for chaining multiple calls
4136     * into a single statement.
4137     *
4138     * @see #putExtras
4139     * @see #removeExtra
4140     * @see #getSerializableExtra(String)
4141     */
4142    public Intent putExtra(String name, Serializable value) {
4143        if (mExtras == null) {
4144            mExtras = new Bundle();
4145        }
4146        mExtras.putSerializable(name, value);
4147        return this;
4148    }
4149
4150    /**
4151     * Add extended data to the intent.  The name must include a package
4152     * prefix, for example the app com.android.contacts would use names
4153     * like "com.android.contacts.ShowAll".
4154     *
4155     * @param name The name of the extra data, with package prefix.
4156     * @param value The boolean array data value.
4157     *
4158     * @return Returns the same Intent object, for chaining multiple calls
4159     * into a single statement.
4160     *
4161     * @see #putExtras
4162     * @see #removeExtra
4163     * @see #getBooleanArrayExtra(String)
4164     */
4165    public Intent putExtra(String name, boolean[] value) {
4166        if (mExtras == null) {
4167            mExtras = new Bundle();
4168        }
4169        mExtras.putBooleanArray(name, value);
4170        return this;
4171    }
4172
4173    /**
4174     * Add extended data to the intent.  The name must include a package
4175     * prefix, for example the app com.android.contacts would use names
4176     * like "com.android.contacts.ShowAll".
4177     *
4178     * @param name The name of the extra data, with package prefix.
4179     * @param value The byte array data value.
4180     *
4181     * @return Returns the same Intent object, for chaining multiple calls
4182     * into a single statement.
4183     *
4184     * @see #putExtras
4185     * @see #removeExtra
4186     * @see #getByteArrayExtra(String)
4187     */
4188    public Intent putExtra(String name, byte[] value) {
4189        if (mExtras == null) {
4190            mExtras = new Bundle();
4191        }
4192        mExtras.putByteArray(name, value);
4193        return this;
4194    }
4195
4196    /**
4197     * Add extended data to the intent.  The name must include a package
4198     * prefix, for example the app com.android.contacts would use names
4199     * like "com.android.contacts.ShowAll".
4200     *
4201     * @param name The name of the extra data, with package prefix.
4202     * @param value The short array data value.
4203     *
4204     * @return Returns the same Intent object, for chaining multiple calls
4205     * into a single statement.
4206     *
4207     * @see #putExtras
4208     * @see #removeExtra
4209     * @see #getShortArrayExtra(String)
4210     */
4211    public Intent putExtra(String name, short[] value) {
4212        if (mExtras == null) {
4213            mExtras = new Bundle();
4214        }
4215        mExtras.putShortArray(name, value);
4216        return this;
4217    }
4218
4219    /**
4220     * Add extended data to the intent.  The name must include a package
4221     * prefix, for example the app com.android.contacts would use names
4222     * like "com.android.contacts.ShowAll".
4223     *
4224     * @param name The name of the extra data, with package prefix.
4225     * @param value The char array data value.
4226     *
4227     * @return Returns the same Intent object, for chaining multiple calls
4228     * into a single statement.
4229     *
4230     * @see #putExtras
4231     * @see #removeExtra
4232     * @see #getCharArrayExtra(String)
4233     */
4234    public Intent putExtra(String name, char[] value) {
4235        if (mExtras == null) {
4236            mExtras = new Bundle();
4237        }
4238        mExtras.putCharArray(name, value);
4239        return this;
4240    }
4241
4242    /**
4243     * Add extended data to the intent.  The name must include a package
4244     * prefix, for example the app com.android.contacts would use names
4245     * like "com.android.contacts.ShowAll".
4246     *
4247     * @param name The name of the extra data, with package prefix.
4248     * @param value The int array data value.
4249     *
4250     * @return Returns the same Intent object, for chaining multiple calls
4251     * into a single statement.
4252     *
4253     * @see #putExtras
4254     * @see #removeExtra
4255     * @see #getIntArrayExtra(String)
4256     */
4257    public Intent putExtra(String name, int[] value) {
4258        if (mExtras == null) {
4259            mExtras = new Bundle();
4260        }
4261        mExtras.putIntArray(name, value);
4262        return this;
4263    }
4264
4265    /**
4266     * Add extended data to the intent.  The name must include a package
4267     * prefix, for example the app com.android.contacts would use names
4268     * like "com.android.contacts.ShowAll".
4269     *
4270     * @param name The name of the extra data, with package prefix.
4271     * @param value The byte array data value.
4272     *
4273     * @return Returns the same Intent object, for chaining multiple calls
4274     * into a single statement.
4275     *
4276     * @see #putExtras
4277     * @see #removeExtra
4278     * @see #getLongArrayExtra(String)
4279     */
4280    public Intent putExtra(String name, long[] value) {
4281        if (mExtras == null) {
4282            mExtras = new Bundle();
4283        }
4284        mExtras.putLongArray(name, value);
4285        return this;
4286    }
4287
4288    /**
4289     * Add extended data to the intent.  The name must include a package
4290     * prefix, for example the app com.android.contacts would use names
4291     * like "com.android.contacts.ShowAll".
4292     *
4293     * @param name The name of the extra data, with package prefix.
4294     * @param value The float array data value.
4295     *
4296     * @return Returns the same Intent object, for chaining multiple calls
4297     * into a single statement.
4298     *
4299     * @see #putExtras
4300     * @see #removeExtra
4301     * @see #getFloatArrayExtra(String)
4302     */
4303    public Intent putExtra(String name, float[] value) {
4304        if (mExtras == null) {
4305            mExtras = new Bundle();
4306        }
4307        mExtras.putFloatArray(name, value);
4308        return this;
4309    }
4310
4311    /**
4312     * Add extended data to the intent.  The name must include a package
4313     * prefix, for example the app com.android.contacts would use names
4314     * like "com.android.contacts.ShowAll".
4315     *
4316     * @param name The name of the extra data, with package prefix.
4317     * @param value The double array data value.
4318     *
4319     * @return Returns the same Intent object, for chaining multiple calls
4320     * into a single statement.
4321     *
4322     * @see #putExtras
4323     * @see #removeExtra
4324     * @see #getDoubleArrayExtra(String)
4325     */
4326    public Intent putExtra(String name, double[] value) {
4327        if (mExtras == null) {
4328            mExtras = new Bundle();
4329        }
4330        mExtras.putDoubleArray(name, value);
4331        return this;
4332    }
4333
4334    /**
4335     * Add extended data to the intent.  The name must include a package
4336     * prefix, for example the app com.android.contacts would use names
4337     * like "com.android.contacts.ShowAll".
4338     *
4339     * @param name The name of the extra data, with package prefix.
4340     * @param value The String array data value.
4341     *
4342     * @return Returns the same Intent object, for chaining multiple calls
4343     * into a single statement.
4344     *
4345     * @see #putExtras
4346     * @see #removeExtra
4347     * @see #getStringArrayExtra(String)
4348     */
4349    public Intent putExtra(String name, String[] value) {
4350        if (mExtras == null) {
4351            mExtras = new Bundle();
4352        }
4353        mExtras.putStringArray(name, value);
4354        return this;
4355    }
4356
4357    /**
4358     * Add extended data to the intent.  The name must include a package
4359     * prefix, for example the app com.android.contacts would use names
4360     * like "com.android.contacts.ShowAll".
4361     *
4362     * @param name The name of the extra data, with package prefix.
4363     * @param value The Bundle data value.
4364     *
4365     * @return Returns the same Intent object, for chaining multiple calls
4366     * into a single statement.
4367     *
4368     * @see #putExtras
4369     * @see #removeExtra
4370     * @see #getBundleExtra(String)
4371     */
4372    public Intent putExtra(String name, Bundle value) {
4373        if (mExtras == null) {
4374            mExtras = new Bundle();
4375        }
4376        mExtras.putBundle(name, value);
4377        return this;
4378    }
4379
4380    /**
4381     * Add extended data to the intent.  The name must include a package
4382     * prefix, for example the app com.android.contacts would use names
4383     * like "com.android.contacts.ShowAll".
4384     *
4385     * @param name The name of the extra data, with package prefix.
4386     * @param value The IBinder data value.
4387     *
4388     * @return Returns the same Intent object, for chaining multiple calls
4389     * into a single statement.
4390     *
4391     * @see #putExtras
4392     * @see #removeExtra
4393     * @see #getIBinderExtra(String)
4394     *
4395     * @deprecated
4396     * @hide
4397     */
4398    @Deprecated
4399    public Intent putExtra(String name, IBinder value) {
4400        if (mExtras == null) {
4401            mExtras = new Bundle();
4402        }
4403        mExtras.putIBinder(name, value);
4404        return this;
4405    }
4406
4407    /**
4408     * Copy all extras in 'src' in to this intent.
4409     *
4410     * @param src Contains the extras to copy.
4411     *
4412     * @see #putExtra
4413     */
4414    public Intent putExtras(Intent src) {
4415        if (src.mExtras != null) {
4416            if (mExtras == null) {
4417                mExtras = new Bundle(src.mExtras);
4418            } else {
4419                mExtras.putAll(src.mExtras);
4420            }
4421        }
4422        return this;
4423    }
4424
4425    /**
4426     * Add a set of extended data to the intent.  The keys must include a package
4427     * prefix, for example the app com.android.contacts would use names
4428     * like "com.android.contacts.ShowAll".
4429     *
4430     * @param extras The Bundle of extras to add to this intent.
4431     *
4432     * @see #putExtra
4433     * @see #removeExtra
4434     */
4435    public Intent putExtras(Bundle extras) {
4436        if (mExtras == null) {
4437            mExtras = new Bundle();
4438        }
4439        mExtras.putAll(extras);
4440        return this;
4441    }
4442
4443    /**
4444     * Completely replace the extras in the Intent with the extras in the
4445     * given Intent.
4446     *
4447     * @param src The exact extras contained in this Intent are copied
4448     * into the target intent, replacing any that were previously there.
4449     */
4450    public Intent replaceExtras(Intent src) {
4451        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4452        return this;
4453    }
4454
4455    /**
4456     * Completely replace the extras in the Intent with the given Bundle of
4457     * extras.
4458     *
4459     * @param extras The new set of extras in the Intent, or null to erase
4460     * all extras.
4461     */
4462    public Intent replaceExtras(Bundle extras) {
4463        mExtras = extras != null ? new Bundle(extras) : null;
4464        return this;
4465    }
4466
4467    /**
4468     * Remove extended data from the intent.
4469     *
4470     * @see #putExtra
4471     */
4472    public void removeExtra(String name) {
4473        if (mExtras != null) {
4474            mExtras.remove(name);
4475            if (mExtras.size() == 0) {
4476                mExtras = null;
4477            }
4478        }
4479    }
4480
4481    /**
4482     * Set special flags controlling how this intent is handled.  Most values
4483     * here depend on the type of component being executed by the Intent,
4484     * specifically the FLAG_ACTIVITY_* flags are all for use with
4485     * {@link Context#startActivity Context.startActivity()} and the
4486     * FLAG_RECEIVER_* flags are all for use with
4487     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4488     *
4489     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4490     * Activities and Tasks</a> documentation for important information on how some of these options impact
4491     * the behavior of your application.
4492     *
4493     * @param flags The desired flags.
4494     *
4495     * @return Returns the same Intent object, for chaining multiple calls
4496     * into a single statement.
4497     *
4498     * @see #getFlags
4499     * @see #addFlags
4500     *
4501     * @see #FLAG_GRANT_READ_URI_PERMISSION
4502     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4503     * @see #FLAG_DEBUG_LOG_RESOLUTION
4504     * @see #FLAG_FROM_BACKGROUND
4505     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4506     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4507     * @see #FLAG_ACTIVITY_CLEAR_TOP
4508     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4509     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4510     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4511     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4512     * @see #FLAG_ACTIVITY_NEW_TASK
4513     * @see #FLAG_ACTIVITY_NO_HISTORY
4514     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4515     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4516     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4517     * @see #FLAG_ACTIVITY_SINGLE_TOP
4518     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4519     */
4520    public Intent setFlags(int flags) {
4521        mFlags = flags;
4522        return this;
4523    }
4524
4525    /**
4526     * Add additional flags to the intent (or with existing flags
4527     * value).
4528     *
4529     * @param flags The new flags to set.
4530     *
4531     * @return Returns the same Intent object, for chaining multiple calls
4532     * into a single statement.
4533     *
4534     * @see #setFlags
4535     */
4536    public Intent addFlags(int flags) {
4537        mFlags |= flags;
4538        return this;
4539    }
4540
4541    /**
4542     * (Usually optional) Set an explicit application package name that limits
4543     * the components this Intent will resolve to.  If left to the default
4544     * value of null, all components in all applications will considered.
4545     * If non-null, the Intent can only match the components in the given
4546     * application package.
4547     *
4548     * @param packageName The name of the application package to handle the
4549     * intent, or null to allow any application package.
4550     *
4551     * @return Returns the same Intent object, for chaining multiple calls
4552     * into a single statement.
4553     *
4554     * @see #getPackage
4555     * @see #resolveActivity
4556     */
4557    public Intent setPackage(String packageName) {
4558        mPackage = packageName;
4559        return this;
4560    }
4561
4562    /**
4563     * (Usually optional) Explicitly set the component to handle the intent.
4564     * If left with the default value of null, the system will determine the
4565     * appropriate class to use based on the other fields (action, data,
4566     * type, categories) in the Intent.  If this class is defined, the
4567     * specified class will always be used regardless of the other fields.  You
4568     * should only set this value when you know you absolutely want a specific
4569     * class to be used; otherwise it is better to let the system find the
4570     * appropriate class so that you will respect the installed applications
4571     * and user preferences.
4572     *
4573     * @param component The name of the application component to handle the
4574     * intent, or null to let the system find one for you.
4575     *
4576     * @return Returns the same Intent object, for chaining multiple calls
4577     * into a single statement.
4578     *
4579     * @see #setClass
4580     * @see #setClassName(Context, String)
4581     * @see #setClassName(String, String)
4582     * @see #getComponent
4583     * @see #resolveActivity
4584     */
4585    public Intent setComponent(ComponentName component) {
4586        mComponent = component;
4587        return this;
4588    }
4589
4590    /**
4591     * Convenience for calling {@link #setComponent} with an
4592     * explicit class name.
4593     *
4594     * @param packageContext A Context of the application package implementing
4595     * this class.
4596     * @param className The name of a class inside of the application package
4597     * that will be used as the component for this Intent.
4598     *
4599     * @return Returns the same Intent object, for chaining multiple calls
4600     * into a single statement.
4601     *
4602     * @see #setComponent
4603     * @see #setClass
4604     */
4605    public Intent setClassName(Context packageContext, String className) {
4606        mComponent = new ComponentName(packageContext, className);
4607        return this;
4608    }
4609
4610    /**
4611     * Convenience for calling {@link #setComponent} with an
4612     * explicit application package name and class name.
4613     *
4614     * @param packageName The name of the package implementing the desired
4615     * component.
4616     * @param className The name of a class inside of the application package
4617     * that will be used as the component for this Intent.
4618     *
4619     * @return Returns the same Intent object, for chaining multiple calls
4620     * into a single statement.
4621     *
4622     * @see #setComponent
4623     * @see #setClass
4624     */
4625    public Intent setClassName(String packageName, String className) {
4626        mComponent = new ComponentName(packageName, className);
4627        return this;
4628    }
4629
4630    /**
4631     * Convenience for calling {@link #setComponent(ComponentName)} with the
4632     * name returned by a {@link Class} object.
4633     *
4634     * @param packageContext A Context of the application package implementing
4635     * this class.
4636     * @param cls The class name to set, equivalent to
4637     *            <code>setClassName(context, cls.getName())</code>.
4638     *
4639     * @return Returns the same Intent object, for chaining multiple calls
4640     * into a single statement.
4641     *
4642     * @see #setComponent
4643     */
4644    public Intent setClass(Context packageContext, Class<?> cls) {
4645        mComponent = new ComponentName(packageContext, cls);
4646        return this;
4647    }
4648
4649    /**
4650     * Use with {@link #fillIn} to allow the current action value to be
4651     * overwritten, even if it is already set.
4652     */
4653    public static final int FILL_IN_ACTION = 1<<0;
4654
4655    /**
4656     * Use with {@link #fillIn} to allow the current data or type value
4657     * overwritten, even if it is already set.
4658     */
4659    public static final int FILL_IN_DATA = 1<<1;
4660
4661    /**
4662     * Use with {@link #fillIn} to allow the current categories to be
4663     * overwritten, even if they are already set.
4664     */
4665    public static final int FILL_IN_CATEGORIES = 1<<2;
4666
4667    /**
4668     * Use with {@link #fillIn} to allow the current component value to be
4669     * overwritten, even if it is already set.
4670     */
4671    public static final int FILL_IN_COMPONENT = 1<<3;
4672
4673    /**
4674     * Use with {@link #fillIn} to allow the current package value to be
4675     * overwritten, even if it is already set.
4676     */
4677    public static final int FILL_IN_PACKAGE = 1<<4;
4678
4679    /**
4680     * Copy the contents of <var>other</var> in to this object, but only
4681     * where fields are not defined by this object.  For purposes of a field
4682     * being defined, the following pieces of data in the Intent are
4683     * considered to be separate fields:
4684     *
4685     * <ul>
4686     * <li> action, as set by {@link #setAction}.
4687     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4688     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4689     * <li> categories, as set by {@link #addCategory}.
4690     * <li> package, as set by {@link #setPackage}.
4691     * <li> component, as set by {@link #setComponent(ComponentName)} or
4692     * related methods.
4693     * <li> each top-level name in the associated extras.
4694     * </ul>
4695     *
4696     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4697     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4698     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
4699     * corresponding field will not be replaced if it is already set.
4700     *
4701     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
4702     * specified.
4703     *
4704     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4705     * and Intent B with {action="gotit", data-type="some/thing",
4706     * categories="one","two"}.
4707     *
4708     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4709     * containing: {action="gotit", data-type="some/thing",
4710     * categories="bar"}.
4711     *
4712     * @param other Another Intent whose values are to be used to fill in
4713     * the current one.
4714     * @param flags Options to control which fields can be filled in.
4715     *
4716     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4717     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4718     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4719     */
4720    public int fillIn(Intent other, int flags) {
4721        int changes = 0;
4722        if (other.mAction != null
4723                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
4724            mAction = other.mAction;
4725            changes |= FILL_IN_ACTION;
4726        }
4727        if ((other.mData != null || other.mType != null)
4728                && ((mData == null && mType == null)
4729                        || (flags&FILL_IN_DATA) != 0)) {
4730            mData = other.mData;
4731            mType = other.mType;
4732            changes |= FILL_IN_DATA;
4733        }
4734        if (other.mCategories != null
4735                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
4736            if (other.mCategories != null) {
4737                mCategories = new HashSet<String>(other.mCategories);
4738            }
4739            changes |= FILL_IN_CATEGORIES;
4740        }
4741        if (other.mPackage != null
4742                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
4743            mPackage = other.mPackage;
4744            changes |= FILL_IN_PACKAGE;
4745        }
4746        // Component is special: it can -only- be set if explicitly allowed,
4747        // since otherwise the sender could force the intent somewhere the
4748        // originator didn't intend.
4749        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
4750            mComponent = other.mComponent;
4751            changes |= FILL_IN_COMPONENT;
4752        }
4753        mFlags |= other.mFlags;
4754        if (mExtras == null) {
4755            if (other.mExtras != null) {
4756                mExtras = new Bundle(other.mExtras);
4757            }
4758        } else if (other.mExtras != null) {
4759            try {
4760                Bundle newb = new Bundle(other.mExtras);
4761                newb.putAll(mExtras);
4762                mExtras = newb;
4763            } catch (RuntimeException e) {
4764                // Modifying the extras can cause us to unparcel the contents
4765                // of the bundle, and if we do this in the system process that
4766                // may fail.  We really should handle this (i.e., the Bundle
4767                // impl shouldn't be on top of a plain map), but for now just
4768                // ignore it and keep the original contents. :(
4769                Log.w("Intent", "Failure filling in extras", e);
4770            }
4771        }
4772        return changes;
4773    }
4774
4775    /**
4776     * Wrapper class holding an Intent and implementing comparisons on it for
4777     * the purpose of filtering.  The class implements its
4778     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4779     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4780     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4781     * on the wrapped Intent.
4782     */
4783    public static final class FilterComparison {
4784        private final Intent mIntent;
4785        private final int mHashCode;
4786
4787        public FilterComparison(Intent intent) {
4788            mIntent = intent;
4789            mHashCode = intent.filterHashCode();
4790        }
4791
4792        /**
4793         * Return the Intent that this FilterComparison represents.
4794         * @return Returns the Intent held by the FilterComparison.  Do
4795         * not modify!
4796         */
4797        public Intent getIntent() {
4798            return mIntent;
4799        }
4800
4801        @Override
4802        public boolean equals(Object obj) {
4803            if (obj instanceof FilterComparison) {
4804                Intent other = ((FilterComparison)obj).mIntent;
4805                return mIntent.filterEquals(other);
4806            }
4807            return false;
4808        }
4809
4810        @Override
4811        public int hashCode() {
4812            return mHashCode;
4813        }
4814    }
4815
4816    /**
4817     * Determine if two intents are the same for the purposes of intent
4818     * resolution (filtering). That is, if their action, data, type,
4819     * class, and categories are the same.  This does <em>not</em> compare
4820     * any extra data included in the intents.
4821     *
4822     * @param other The other Intent to compare against.
4823     *
4824     * @return Returns true if action, data, type, class, and categories
4825     *         are the same.
4826     */
4827    public boolean filterEquals(Intent other) {
4828        if (other == null) {
4829            return false;
4830        }
4831        if (mAction != other.mAction) {
4832            if (mAction != null) {
4833                if (!mAction.equals(other.mAction)) {
4834                    return false;
4835                }
4836            } else {
4837                if (!other.mAction.equals(mAction)) {
4838                    return false;
4839                }
4840            }
4841        }
4842        if (mData != other.mData) {
4843            if (mData != null) {
4844                if (!mData.equals(other.mData)) {
4845                    return false;
4846                }
4847            } else {
4848                if (!other.mData.equals(mData)) {
4849                    return false;
4850                }
4851            }
4852        }
4853        if (mType != other.mType) {
4854            if (mType != null) {
4855                if (!mType.equals(other.mType)) {
4856                    return false;
4857                }
4858            } else {
4859                if (!other.mType.equals(mType)) {
4860                    return false;
4861                }
4862            }
4863        }
4864        if (mPackage != other.mPackage) {
4865            if (mPackage != null) {
4866                if (!mPackage.equals(other.mPackage)) {
4867                    return false;
4868                }
4869            } else {
4870                if (!other.mPackage.equals(mPackage)) {
4871                    return false;
4872                }
4873            }
4874        }
4875        if (mComponent != other.mComponent) {
4876            if (mComponent != null) {
4877                if (!mComponent.equals(other.mComponent)) {
4878                    return false;
4879                }
4880            } else {
4881                if (!other.mComponent.equals(mComponent)) {
4882                    return false;
4883                }
4884            }
4885        }
4886        if (mCategories != other.mCategories) {
4887            if (mCategories != null) {
4888                if (!mCategories.equals(other.mCategories)) {
4889                    return false;
4890                }
4891            } else {
4892                if (!other.mCategories.equals(mCategories)) {
4893                    return false;
4894                }
4895            }
4896        }
4897
4898        return true;
4899    }
4900
4901    /**
4902     * Generate hash code that matches semantics of filterEquals().
4903     *
4904     * @return Returns the hash value of the action, data, type, class, and
4905     *         categories.
4906     *
4907     * @see #filterEquals
4908     */
4909    public int filterHashCode() {
4910        int code = 0;
4911        if (mAction != null) {
4912            code += mAction.hashCode();
4913        }
4914        if (mData != null) {
4915            code += mData.hashCode();
4916        }
4917        if (mType != null) {
4918            code += mType.hashCode();
4919        }
4920        if (mPackage != null) {
4921            code += mPackage.hashCode();
4922        }
4923        if (mComponent != null) {
4924            code += mComponent.hashCode();
4925        }
4926        if (mCategories != null) {
4927            code += mCategories.hashCode();
4928        }
4929        return code;
4930    }
4931
4932    @Override
4933    public String toString() {
4934        StringBuilder   b = new StringBuilder(128);
4935
4936        b.append("Intent { ");
4937        toShortString(b, true, true);
4938        b.append(" }");
4939
4940        return b.toString();
4941    }
4942
4943    /** @hide */
4944    public String toShortString(boolean comp, boolean extras) {
4945        StringBuilder   b = new StringBuilder(128);
4946        toShortString(b, comp, extras);
4947        return b.toString();
4948    }
4949
4950    /** @hide */
4951    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
4952        boolean first = true;
4953        if (mAction != null) {
4954            b.append("act=").append(mAction);
4955            first = false;
4956        }
4957        if (mCategories != null) {
4958            if (!first) {
4959                b.append(' ');
4960            }
4961            first = false;
4962            b.append("cat=[");
4963            Iterator<String> i = mCategories.iterator();
4964            boolean didone = false;
4965            while (i.hasNext()) {
4966                if (didone) b.append(",");
4967                didone = true;
4968                b.append(i.next());
4969            }
4970            b.append("]");
4971        }
4972        if (mData != null) {
4973            if (!first) {
4974                b.append(' ');
4975            }
4976            first = false;
4977            b.append("dat=").append(mData);
4978        }
4979        if (mType != null) {
4980            if (!first) {
4981                b.append(' ');
4982            }
4983            first = false;
4984            b.append("typ=").append(mType);
4985        }
4986        if (mFlags != 0) {
4987            if (!first) {
4988                b.append(' ');
4989            }
4990            first = false;
4991            b.append("flg=0x").append(Integer.toHexString(mFlags));
4992        }
4993        if (mPackage != null) {
4994            if (!first) {
4995                b.append(' ');
4996            }
4997            first = false;
4998            b.append("pkg=").append(mPackage);
4999        }
5000        if (comp && mComponent != null) {
5001            if (!first) {
5002                b.append(' ');
5003            }
5004            first = false;
5005            b.append("cmp=").append(mComponent.flattenToShortString());
5006        }
5007        if (extras && mExtras != null) {
5008            if (!first) {
5009                b.append(' ');
5010            }
5011            first = false;
5012            b.append("(has extras)");
5013        }
5014    }
5015
5016    /**
5017     * Call {@link #toUri} with 0 flags.
5018     * @deprecated Use {@link #toUri} instead.
5019     */
5020    @Deprecated
5021    public String toURI() {
5022        return toUri(0);
5023    }
5024
5025    /**
5026     * Convert this Intent into a String holding a URI representation of it.
5027     * The returned URI string has been properly URI encoded, so it can be
5028     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
5029     * Intent's data as the base URI, with an additional fragment describing
5030     * the action, categories, type, flags, package, component, and extras.
5031     *
5032     * <p>You can convert the returned string back to an Intent with
5033     * {@link #getIntent}.
5034     *
5035     * @param flags Additional operating flags.  Either 0 or
5036     * {@link #URI_INTENT_SCHEME}.
5037     *
5038     * @return Returns a URI encoding URI string describing the entire contents
5039     * of the Intent.
5040     */
5041    public String toUri(int flags) {
5042        StringBuilder uri = new StringBuilder(128);
5043        String scheme = null;
5044        if (mData != null) {
5045            String data = mData.toString();
5046            if ((flags&URI_INTENT_SCHEME) != 0) {
5047                final int N = data.length();
5048                for (int i=0; i<N; i++) {
5049                    char c = data.charAt(i);
5050                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
5051                            || c == '.' || c == '-') {
5052                        continue;
5053                    }
5054                    if (c == ':' && i > 0) {
5055                        // Valid scheme.
5056                        scheme = data.substring(0, i);
5057                        uri.append("intent:");
5058                        data = data.substring(i+1);
5059                        break;
5060                    }
5061
5062                    // No scheme.
5063                    break;
5064                }
5065            }
5066            uri.append(data);
5067
5068        } else if ((flags&URI_INTENT_SCHEME) != 0) {
5069            uri.append("intent:");
5070        }
5071
5072        uri.append("#Intent;");
5073
5074        if (scheme != null) {
5075            uri.append("scheme=").append(scheme).append(';');
5076        }
5077        if (mAction != null) {
5078            uri.append("action=").append(Uri.encode(mAction)).append(';');
5079        }
5080        if (mCategories != null) {
5081            for (String category : mCategories) {
5082                uri.append("category=").append(Uri.encode(category)).append(';');
5083            }
5084        }
5085        if (mType != null) {
5086            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
5087        }
5088        if (mFlags != 0) {
5089            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
5090        }
5091        if (mPackage != null) {
5092            uri.append("package=").append(Uri.encode(mPackage)).append(';');
5093        }
5094        if (mComponent != null) {
5095            uri.append("component=").append(Uri.encode(
5096                    mComponent.flattenToShortString(), "/")).append(';');
5097        }
5098        if (mExtras != null) {
5099            for (String key : mExtras.keySet()) {
5100                final Object value = mExtras.get(key);
5101                char entryType =
5102                        value instanceof String    ? 'S' :
5103                        value instanceof Boolean   ? 'B' :
5104                        value instanceof Byte      ? 'b' :
5105                        value instanceof Character ? 'c' :
5106                        value instanceof Double    ? 'd' :
5107                        value instanceof Float     ? 'f' :
5108                        value instanceof Integer   ? 'i' :
5109                        value instanceof Long      ? 'l' :
5110                        value instanceof Short     ? 's' :
5111                        '\0';
5112
5113                if (entryType != '\0') {
5114                    uri.append(entryType);
5115                    uri.append('.');
5116                    uri.append(Uri.encode(key));
5117                    uri.append('=');
5118                    uri.append(Uri.encode(value.toString()));
5119                    uri.append(';');
5120                }
5121            }
5122        }
5123
5124        uri.append("end");
5125
5126        return uri.toString();
5127    }
5128
5129    public int describeContents() {
5130        return (mExtras != null) ? mExtras.describeContents() : 0;
5131    }
5132
5133    public void writeToParcel(Parcel out, int flags) {
5134        out.writeString(mAction);
5135        Uri.writeToParcel(out, mData);
5136        out.writeString(mType);
5137        out.writeInt(mFlags);
5138        out.writeString(mPackage);
5139        ComponentName.writeToParcel(mComponent, out);
5140
5141        if (mCategories != null) {
5142            out.writeInt(mCategories.size());
5143            for (String category : mCategories) {
5144                out.writeString(category);
5145            }
5146        } else {
5147            out.writeInt(0);
5148        }
5149
5150        out.writeBundle(mExtras);
5151    }
5152
5153    public static final Parcelable.Creator<Intent> CREATOR
5154            = new Parcelable.Creator<Intent>() {
5155        public Intent createFromParcel(Parcel in) {
5156            return new Intent(in);
5157        }
5158        public Intent[] newArray(int size) {
5159            return new Intent[size];
5160        }
5161    };
5162
5163    /** @hide */
5164    protected Intent(Parcel in) {
5165        readFromParcel(in);
5166    }
5167
5168    public void readFromParcel(Parcel in) {
5169        mAction = in.readString();
5170        mData = Uri.CREATOR.createFromParcel(in);
5171        mType = in.readString();
5172        mFlags = in.readInt();
5173        mPackage = in.readString();
5174        mComponent = ComponentName.readFromParcel(in);
5175
5176        int N = in.readInt();
5177        if (N > 0) {
5178            mCategories = new HashSet<String>();
5179            int i;
5180            for (i=0; i<N; i++) {
5181                mCategories.add(in.readString());
5182            }
5183        } else {
5184            mCategories = null;
5185        }
5186
5187        mExtras = in.readBundle();
5188    }
5189
5190    /**
5191     * Parses the "intent" element (and its children) from XML and instantiates
5192     * an Intent object.  The given XML parser should be located at the tag
5193     * where parsing should start (often named "intent"), from which the
5194     * basic action, data, type, and package and class name will be
5195     * retrieved.  The function will then parse in to any child elements,
5196     * looking for <category android:name="xxx"> tags to add categories and
5197     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5198     * to the intent.
5199     *
5200     * @param resources The Resources to use when inflating resources.
5201     * @param parser The XML parser pointing at an "intent" tag.
5202     * @param attrs The AttributeSet interface for retrieving extended
5203     * attribute data at the current <var>parser</var> location.
5204     * @return An Intent object matching the XML data.
5205     * @throws XmlPullParserException If there was an XML parsing error.
5206     * @throws IOException If there was an I/O error.
5207     */
5208    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5209            throws XmlPullParserException, IOException {
5210        Intent intent = new Intent();
5211
5212        TypedArray sa = resources.obtainAttributes(attrs,
5213                com.android.internal.R.styleable.Intent);
5214
5215        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5216
5217        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5218        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5219        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5220
5221        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5222        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5223        if (packageName != null && className != null) {
5224            intent.setComponent(new ComponentName(packageName, className));
5225        }
5226
5227        sa.recycle();
5228
5229        int outerDepth = parser.getDepth();
5230        int type;
5231        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5232               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5233            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5234                continue;
5235            }
5236
5237            String nodeName = parser.getName();
5238            if (nodeName.equals("category")) {
5239                sa = resources.obtainAttributes(attrs,
5240                        com.android.internal.R.styleable.IntentCategory);
5241                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5242                sa.recycle();
5243
5244                if (cat != null) {
5245                    intent.addCategory(cat);
5246                }
5247                XmlUtils.skipCurrentTag(parser);
5248
5249            } else if (nodeName.equals("extra")) {
5250                if (intent.mExtras == null) {
5251                    intent.mExtras = new Bundle();
5252                }
5253                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5254                XmlUtils.skipCurrentTag(parser);
5255
5256            } else {
5257                XmlUtils.skipCurrentTag(parser);
5258            }
5259        }
5260
5261        return intent;
5262    }
5263}
5264