Intent.java revision 5f05afeeb6dd88a4f16b0a279afa3b4d0b631213
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/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/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/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/</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.app.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:value="android.intent.action.MAIN" /&gt;
244 *                 &lt;category android:value="android.intent.category.LAUNCHER" /&gt;
245 *             &lt;/intent-filter&gt;
246 *             &lt;intent-filter&gt;
247 *                 &lt;action android:value="android.intent.action.VIEW" /&gt;
248 *                 &lt;action android:value="android.intent.action.EDIT" /&gt;
249 *                 &lt;action android:value="android.intent.action.PICK" /&gt;
250 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
251 *                 &lt;type android:value="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
252 *             &lt;/intent-filter&gt;
253 *             &lt;intent-filter&gt;
254 *                 &lt;action android:value="android.intent.action.GET_CONTENT" /&gt;
255 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
256 *                 &lt;type android:value="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:value="android.intent.action.VIEW" /&gt;
263 *                 &lt;action android:value="android.intent.action.EDIT" /&gt;
264 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
265 *                 &lt;type android:value="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:value="android.intent.action.INSERT" /&gt;
270 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
271 *                 &lt;type android:value="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:value="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
280 *                 &lt;category android:value="android.intent.category.DEFAULT" /&gt;
281 *                 &lt;category android:value="android.intent.category.ALTERNATIVE" /&gt;
282 *                 &lt;category android:value="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
283 *                 &lt;type android:value="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:value="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
298 *     &lt;category android:value="{@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:value="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
307 *     &lt;action android:value="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
308 *     &lt;action android:value="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
309 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
310 *     &lt;type android:value="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:value="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
326 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
327 *     &lt;type android:value="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.app.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:value="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
375 *     &lt;action android:value="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
376 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
377 *     &lt;type android:value="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:value="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
388 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
389 *     &lt;type android:value="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.app.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:value="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
426 *     &lt;category android:value="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
427 *     &lt;category android:value="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
428 *     &lt;category android:value="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
429 *     &lt;type android:value="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 * </ul>
514 *
515 * <h3>Standard Categories</h3>
516 *
517 * <p>These are the current standard categories that can be used to further
518 * clarify an Intent via {@link #addCategory}.
519 *
520 * <ul>
521 *     <li> {@link #CATEGORY_DEFAULT}
522 *     <li> {@link #CATEGORY_BROWSABLE}
523 *     <li> {@link #CATEGORY_TAB}
524 *     <li> {@link #CATEGORY_ALTERNATIVE}
525 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
526 *     <li> {@link #CATEGORY_LAUNCHER}
527 *     <li> {@link #CATEGORY_INFO}
528 *     <li> {@link #CATEGORY_HOME}
529 *     <li> {@link #CATEGORY_PREFERENCE}
530 *     <li> {@link #CATEGORY_TEST}
531 * </ul>
532 *
533 * <h3>Standard Extra Data</h3>
534 *
535 * <p>These are the current standard fields that can be used as extra data via
536 * {@link #putExtra}.
537 *
538 * <ul>
539 *     <li> {@link #EXTRA_TEMPLATE}
540 *     <li> {@link #EXTRA_INTENT}
541 *     <li> {@link #EXTRA_STREAM}
542 *     <li> {@link #EXTRA_TEXT}
543 * </ul>
544 *
545 * <h3>Flags</h3>
546 *
547 * <p>These are the possible flags that can be used in the Intent via
548 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
549 * of all possible flags.
550 */
551public class Intent implements Parcelable {
552    // ---------------------------------------------------------------------
553    // ---------------------------------------------------------------------
554    // Standard intent activity actions (see action variable).
555
556    /**
557     *  Activity Action: Start as a main entry point, does not expect to
558     *  receive data.
559     *  <p>Input: nothing
560     *  <p>Output: nothing
561     */
562    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
563    public static final String ACTION_MAIN = "android.intent.action.MAIN";
564
565    /**
566     * Activity Action: Display the data to the user.  This is the most common
567     * action performed on data -- it is the generic action you can use on
568     * a piece of data to get the most reasonable thing to occur.  For example,
569     * when used on a contacts entry it will view the entry; when used on a
570     * mailto: URI it will bring up a compose window filled with the information
571     * supplied by the URI; when used with a tel: URI it will invoke the
572     * dialer.
573     * <p>Input: {@link #getData} is URI from which to retrieve data.
574     * <p>Output: nothing.
575     */
576    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
577    public static final String ACTION_VIEW = "android.intent.action.VIEW";
578
579    /**
580     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
581     * performed on a piece of data.
582     */
583    public static final String ACTION_DEFAULT = ACTION_VIEW;
584
585    /**
586     * Used to indicate that some piece of data should be attached to some other
587     * place.  For example, image data could be attached to a contact.  It is up
588     * to the recipient to decide where the data should be attached; the intent
589     * does not specify the ultimate destination.
590     * <p>Input: {@link #getData} is URI of data to be attached.
591     * <p>Output: nothing.
592     */
593    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
594    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
595
596    /**
597     * Activity Action: Provide explicit editable access to the given data.
598     * <p>Input: {@link #getData} is URI of data to be edited.
599     * <p>Output: nothing.
600     */
601    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
602    public static final String ACTION_EDIT = "android.intent.action.EDIT";
603
604    /**
605     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
606     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
607     * The extras can contain type specific data to pass through to the editing/creating
608     * activity.
609     * <p>Output: The URI of the item that was picked.  This must be a content:
610     * URI so that any receiver can access it.
611     */
612    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
613    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
614
615    /**
616     * Activity Action: Pick an item from the data, returning what was selected.
617     * <p>Input: {@link #getData} is URI containing a directory of data
618     * (vnd.android.cursor.dir/*) from which to pick an item.
619     * <p>Output: The URI of the item that was picked.
620     */
621    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
622    public static final String ACTION_PICK = "android.intent.action.PICK";
623
624    /**
625     * Activity Action: Creates a shortcut.
626     * <p>Input: Nothing.</p>
627     * <p>Output: An Intent representing the shortcut. The intent must contain three
628     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
629     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
630     * (value: ShortcutIconResource).</p>
631     *
632     * @see #EXTRA_SHORTCUT_INTENT
633     * @see #EXTRA_SHORTCUT_NAME
634     * @see #EXTRA_SHORTCUT_ICON
635     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
636     * @see android.content.Intent.ShortcutIconResource
637     */
638    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
639    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
640
641    /**
642     * The name of the extra used to define the Intent of a shortcut.
643     *
644     * @see #ACTION_CREATE_SHORTCUT
645     */
646    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
647    /**
648     * The name of the extra used to define the name of a shortcut.
649     *
650     * @see #ACTION_CREATE_SHORTCUT
651     */
652    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
653    /**
654     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
655     *
656     * @see #ACTION_CREATE_SHORTCUT
657     */
658    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
659    /**
660     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
661     *
662     * @see #ACTION_CREATE_SHORTCUT
663     * @see android.content.Intent.ShortcutIconResource
664     */
665    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
666            "android.intent.extra.shortcut.ICON_RESOURCE";
667
668    /**
669     * Represents a shortcut/live folder icon resource.
670     *
671     * @see Intent#ACTION_CREATE_SHORTCUT
672     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
673     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
674     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
675     */
676    public static class ShortcutIconResource implements Parcelable {
677        /**
678         * The package name of the application containing the icon.
679         */
680        public String packageName;
681
682        /**
683         * The resource name of the icon, including package, name and type.
684         */
685        public String resourceName;
686
687        /**
688         * Creates a new ShortcutIconResource for the specified context and resource
689         * identifier.
690         *
691         * @param context The context of the application.
692         * @param resourceId The resource idenfitier for the icon.
693         * @return A new ShortcutIconResource with the specified's context package name
694         *         and icon resource idenfitier.
695         */
696        public static ShortcutIconResource fromContext(Context context, int resourceId) {
697            ShortcutIconResource icon = new ShortcutIconResource();
698            icon.packageName = context.getPackageName();
699            icon.resourceName = context.getResources().getResourceName(resourceId);
700            return icon;
701        }
702
703        /**
704         * Used to read a ShortcutIconResource from a Parcel.
705         */
706        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
707            new Parcelable.Creator<ShortcutIconResource>() {
708
709                public ShortcutIconResource createFromParcel(Parcel source) {
710                    ShortcutIconResource icon = new ShortcutIconResource();
711                    icon.packageName = source.readString();
712                    icon.resourceName = source.readString();
713                    return icon;
714                }
715
716                public ShortcutIconResource[] newArray(int size) {
717                    return new ShortcutIconResource[size];
718                }
719            };
720
721        /**
722         * No special parcel contents.
723         */
724        public int describeContents() {
725            return 0;
726        }
727
728        public void writeToParcel(Parcel dest, int flags) {
729            dest.writeString(packageName);
730            dest.writeString(resourceName);
731        }
732
733        @Override
734        public String toString() {
735            return resourceName;
736        }
737    }
738
739    /**
740     * Activity Action: Display an activity chooser, allowing the user to pick
741     * what they want to before proceeding.  This can be used as an alternative
742     * to the standard activity picker that is displayed by the system when
743     * you try to start an activity with multiple possible matches, with these
744     * differences in behavior:
745     * <ul>
746     * <li>You can specify the title that will appear in the activity chooser.
747     * <li>The user does not have the option to make one of the matching
748     * activities a preferred activity, and all possible activities will
749     * always be shown even if one of them is currently marked as the
750     * preferred activity.
751     * </ul>
752     * <p>
753     * This action should be used when the user will naturally expect to
754     * select an activity in order to proceed.  An example if when not to use
755     * it is when the user clicks on a "mailto:" link.  They would naturally
756     * expect to go directly to their mail app, so startActivity() should be
757     * called directly: it will
758     * either launch the current preferred app, or put up a dialog allowing the
759     * user to pick an app to use and optionally marking that as preferred.
760     * <p>
761     * In contrast, if the user is selecting a menu item to send a picture
762     * they are viewing to someone else, there are many different things they
763     * may want to do at this point: send it through e-mail, upload it to a
764     * web service, etc.  In this case the CHOOSER action should be used, to
765     * always present to the user a list of the things they can do, with a
766     * nice title given by the caller such as "Send this photo with:".
767     * <p>
768     * As a convenience, an Intent of this form can be created with the
769     * {@link #createChooser} function.
770     * <p>Input: No data should be specified.  get*Extra must have
771     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
772     * and can optionally have a {@link #EXTRA_TITLE} field containing the
773     * title text to display in the chooser.
774     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
775     */
776    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
777    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
778
779    /**
780     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
781     *
782     * @param target The Intent that the user will be selecting an activity
783     * to perform.
784     * @param title Optional title that will be displayed in the chooser.
785     * @return Return a new Intent object that you can hand to
786     * {@link Context#startActivity(Intent) Context.startActivity()} and
787     * related methods.
788     */
789    public static Intent createChooser(Intent target, CharSequence title) {
790        Intent intent = new Intent(ACTION_CHOOSER);
791        intent.putExtra(EXTRA_INTENT, target);
792        if (title != null) {
793            intent.putExtra(EXTRA_TITLE, title);
794        }
795        return intent;
796    }
797    /**
798     * Activity Action: Allow the user to select a particular kind of data and
799     * return it.  This is different than {@link #ACTION_PICK} in that here we
800     * just say what kind of data is desired, not a URI of existing data from
801     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
802     * create the data as it runs (for example taking a picture or recording a
803     * sound), let them browser over the web and download the desired data,
804     * etc.
805     * <p>
806     * There are two main ways to use this action: if you want an specific kind
807     * of data, such as a person contact, you set the MIME type to the kind of
808     * data you want and launch it with {@link Context#startActivity(Intent)}.
809     * The system will then launch the best application to select that kind
810     * of data for you.
811     * <p>
812     * You may also be interested in any of a set of types of content the user
813     * can pick.  For example, an e-mail application that wants to allow the
814     * user to add an attachment to an e-mail message can use this action to
815     * bring up a list of all of the types of content the user can attach.
816     * <p>
817     * In this case, you should wrap the GET_CONTENT intent with a chooser
818     * (through {@link #createChooser}), which will give the proper interface
819     * for the user to pick how to send your data and allow you to specify
820     * a prompt indicating what they are doing.  You will usually specify a
821     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
822     * broad range of content types the user can select from.
823     * <p>
824     * When using such a broad GET_CONTENT action, it is often desireable to
825     * only pick from data that can be represented as a stream.  This is
826     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
827     * <p>
828     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
829     * that no URI is supplied in the intent, as there are no constraints on
830     * where the returned data originally comes from.  You may also include the
831     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
832     * opened as a stream.
833     * <p>
834     * Output: The URI of the item that was picked.  This must be a content:
835     * URI so that any receiver can access it.
836     */
837    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
838    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
839    /**
840     * Activity Action: Dial a number as specified by the data.  This shows a
841     * UI with the number being dialed, allowing the user to explicitly
842     * initiate the call.
843     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
844     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
845     * number.
846     * <p>Output: nothing.
847     */
848    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
849    public static final String ACTION_DIAL = "android.intent.action.DIAL";
850    /**
851     * Activity Action: Perform a call to someone specified by the data.
852     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
853     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
854     * number.
855     * <p>Output: nothing.
856     *
857     * <p>Note: there will be restrictions on which applications can initiate a
858     * call; most applications should use the {@link #ACTION_DIAL}.
859     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
860     * numbers.  Applications can <strong>dial</strong> emergency numbers using
861     * {@link #ACTION_DIAL}, however.
862     */
863    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
864    public static final String ACTION_CALL = "android.intent.action.CALL";
865    /**
866     * Activity Action: Perform a call to an emergency number specified by the
867     * data.
868     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
869     * tel: URI of an explicit phone number.
870     * <p>Output: nothing.
871     * @hide
872     */
873    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
874    /**
875     * Activity action: Perform a call to any number (emergency or not)
876     * specified by the data.
877     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
878     * tel: URI of an explicit phone number.
879     * <p>Output: nothing.
880     * @hide
881     */
882    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
883    /**
884     * Activity Action: Send a message to someone specified by the data.
885     * <p>Input: {@link #getData} is URI describing the target.
886     * <p>Output: nothing.
887     */
888    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
889    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
890    /**
891     * Activity Action: Deliver some data to someone else.  Who the data is
892     * being delivered to is not specified; it is up to the receiver of this
893     * action to ask the user where the data should be sent.
894     * <p>
895     * When launching a SEND intent, you should usually wrap it in a chooser
896     * (through {@link #createChooser}), which will give the proper interface
897     * for the user to pick how to send your data and allow you to specify
898     * a prompt indicating what they are doing.
899     * <p>
900     * Input: {@link #getType} is the MIME type of the data being sent.
901     * get*Extra can have either a {@link #EXTRA_TEXT}
902     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
903     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
904     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
905     * if the MIME type is unknown (this will only allow senders that can
906     * handle generic data streams).
907     * <p>
908     * Optional standard extras, which may be interpreted by some recipients as
909     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
910     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
911     * <p>
912     * Output: nothing.
913     */
914    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
915    public static final String ACTION_SEND = "android.intent.action.SEND";
916    /**
917     * Activity Action: Handle an incoming phone call.
918     * <p>Input: nothing.
919     * <p>Output: nothing.
920     */
921    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
922    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
923    /**
924     * Activity Action: Insert an empty item into the given container.
925     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
926     * in which to place the data.
927     * <p>Output: URI of the new data that was created.
928     */
929    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
930    public static final String ACTION_INSERT = "android.intent.action.INSERT";
931    /**
932     * Activity Action: Delete the given data from its container.
933     * <p>Input: {@link #getData} is URI of data to be deleted.
934     * <p>Output: nothing.
935     */
936    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
937    public static final String ACTION_DELETE = "android.intent.action.DELETE";
938    /**
939     * Activity Action: Run the data, whatever that means.
940     * <p>Input: ?  (Note: this is currently specific to the test harness.)
941     * <p>Output: nothing.
942     */
943    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
944    public static final String ACTION_RUN = "android.intent.action.RUN";
945    /**
946     * Activity Action: Perform a data synchronization.
947     * <p>Input: ?
948     * <p>Output: ?
949     */
950    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
951    public static final String ACTION_SYNC = "android.intent.action.SYNC";
952    /**
953     * Activity Action: Pick an activity given an intent, returning the class
954     * selected.
955     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
956     * used with {@link PackageManager#queryIntentActivities} to determine the
957     * set of activities from which to pick.
958     * <p>Output: Class name of the activity that was selected.
959     */
960    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
961    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
962    /**
963     * Activity Action: Perform a search.
964     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
965     * is the text to search for.  If empty, simply
966     * enter your search results Activity with the search UI activated.
967     * <p>Output: nothing.
968     */
969    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
970    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
971    /**
972     * Activity Action: Start the platform-defined tutorial
973     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
974     * is the text to search for.  If empty, simply
975     * enter your search results Activity with the search UI activated.
976     * <p>Output: nothing.
977     */
978    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
979    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
980    /**
981     * Activity Action: Perform a web search.
982     * <p>
983     * Input: {@link android.app.SearchManager#QUERY
984     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
985     * a url starts with http or https, the site will be opened. If it is plain
986     * text, Google search will be applied.
987     * <p>
988     * Output: nothing.
989     */
990    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
991    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
992    /**
993     * Activity Action: List all available applications
994     * <p>Input: Nothing.
995     * <p>Output: nothing.
996     */
997    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
998    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
999    /**
1000     * Activity Action: Show settings for choosing wallpaper
1001     * <p>Input: Nothing.
1002     * <p>Output: Nothing.
1003     */
1004    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1005    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1006
1007    /**
1008     * Activity Action: Show activity for reporting a bug.
1009     * <p>Input: Nothing.
1010     * <p>Output: Nothing.
1011     */
1012    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1013    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1014
1015    /**
1016     *  Activity Action: Main entry point for factory tests.  Only used when
1017     *  the device is booting in factory test node.  The implementing package
1018     *  must be installed in the system image.
1019     *  <p>Input: nothing
1020     *  <p>Output: nothing
1021     */
1022    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1023
1024    /**
1025     * Activity Action: The user pressed the "call" button to go to the dialer
1026     * or other appropriate UI for placing a call.
1027     * <p>Input: Nothing.
1028     * <p>Output: Nothing.
1029     */
1030    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1031    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1032
1033    /**
1034     * Activity Action: Start Voice Command.
1035     * <p>Input: Nothing.
1036     * <p>Output: Nothing.
1037     */
1038    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1039    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1040
1041    /**
1042     * Activity Action: Start action associated with long pressing on the
1043     * search key.
1044     * <p>Input: Nothing.
1045     * <p>Output: Nothing.
1046     */
1047    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1048    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1049
1050    // ---------------------------------------------------------------------
1051    // ---------------------------------------------------------------------
1052    // Standard intent broadcast actions (see action variable).
1053
1054    /**
1055     * Broadcast Action: Sent after the screen turns off.
1056     */
1057    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1058    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1059    /**
1060     * Broadcast Action: Sent after the screen turns on.
1061     */
1062    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1063    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1064
1065    /**
1066     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1067     * keyguard is gone).
1068     */
1069    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1070    public static final String ACTION_USER_PRESENT= "android.intent.action.USER_PRESENT";
1071
1072    /**
1073     * Broadcast Action: The current time has changed.  Sent every
1074     * minute.  You can <em>not</em> receive this through components declared
1075     * in manifests, only by exlicitly registering for it with
1076     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1077     * Context.registerReceiver()}.
1078     */
1079    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1080    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1081    /**
1082     * Broadcast Action: The time was set.
1083     */
1084    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1085    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1086    /**
1087     * Broadcast Action: The date has changed.
1088     */
1089    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1090    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1091    /**
1092     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1093     * <ul>
1094     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1095     * </ul>
1096     */
1097    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1098    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1099    /**
1100     * Alarm Changed Action: This is broadcast when the AlarmClock
1101     * application's alarm is set or unset.  It is used by the
1102     * AlarmClock application and the StatusBar service.
1103     * @hide
1104     */
1105    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1106    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1107    /**
1108     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1109     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1110     * @hide
1111     */
1112    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1113    public static final String ACTION_SYNC_STATE_CHANGED
1114            = "android.intent.action.SYNC_STATE_CHANGED";
1115    /**
1116     * Broadcast Action: This is broadcast once, after the system has finished
1117     * booting.  It can be used to perform application-specific initialization,
1118     * such as installing alarms.  You must hold the
1119     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1120     * in order to receive this broadcast.
1121     */
1122    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1123    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1124    /**
1125     * Broadcast Action: This is broadcast when a user action should request a
1126     * temporary system dialog to dismiss.  Some examples of temporary system
1127     * dialogs are the notification window-shade and the recent tasks dialog.
1128     */
1129    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1130    /**
1131     * Broadcast Action: Trigger the download and eventual installation
1132     * of a package.
1133     * <p>Input: {@link #getData} is the URI of the package file to download.
1134     */
1135    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1136    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1137    /**
1138     * Broadcast Action: A new application package has been installed on the
1139     * device. The data contains the name of the package.  Note that the
1140     * newly installed package does <em>not</em> receive this broadcast.
1141     * <p>My include the following extras:
1142     * <ul>
1143     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1144     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1145     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1146     * </ul>
1147     */
1148    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1149    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1150    /**
1151     * Broadcast Action: A new version of an application package has been
1152     * installed, replacing an existing version that was previously installed.
1153     * The data contains the name of the package.
1154     * <p>My include the following extras:
1155     * <ul>
1156     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1157     * </ul>
1158     */
1159    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1160    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1161    /**
1162     * Broadcast Action: An existing application package has been removed from
1163     * the device.  The data contains the name of the package.  The package
1164     * that is being installed does <em>not</em> receive this Intent.
1165     * <ul>
1166     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1167     * to the package.
1168     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1169     * application -- data and code -- is being removed.
1170     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1171     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1172     * </ul>
1173     */
1174    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1175    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1176    /**
1177     * Broadcast Action: An existing application package has been changed (e.g. a component has been
1178     * enabled or disabled.  The data contains the name of the package.
1179     * <ul>
1180     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1181     * </ul>
1182     */
1183    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1184    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1185    /**
1186     * Broadcast Action: The user has restarted a package, and all of its
1187     * processes have been killed.  All runtime state
1188     * associated with it (processes, alarms, notifications, etc) should
1189     * be removed.  Note that the restarted package does <em>not</em>
1190     * receive this broadcast.
1191     * The data contains the name of the package.
1192     * <ul>
1193     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1194     * </ul>
1195     */
1196    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1197    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1198    /**
1199     * Broadcast Action: The user has cleared the data of a package.  This should
1200     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1201     * its persistent data is erased and this broadcast sent.
1202     * Note that the cleared package does <em>not</em>
1203     * receive this broadcast. The data contains the name of the package.
1204     * <ul>
1205     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1206     * </ul>
1207     */
1208    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1209    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1210    /**
1211     * Broadcast Action: A user ID has been removed from the system.  The user
1212     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1213     */
1214    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1215    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1216    /**
1217     * Broadcast Action:  The current system wallpaper has changed.  See
1218     * {@link Context#getWallpaper} for retrieving the new wallpaper.
1219     */
1220    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1221    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1222    /**
1223     * Broadcast Action: The current device {@link android.content.res.Configuration}
1224     * (orientation, locale, etc) has changed.  When such a change happens, the
1225     * UIs (view hierarchy) will need to be rebuilt based on this new
1226     * information; for the most part, applications don't need to worry about
1227     * this, because the system will take care of stopping and restarting the
1228     * application to make sure it sees the new changes.  Some system code that
1229     * can not be restarted will need to watch for this action and handle it
1230     * appropriately.
1231     *
1232     * @see android.content.res.Configuration
1233     */
1234    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1235    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1236    /**
1237     * Broadcast Action:  The charging state, or charge level of the battery has
1238     * changed.
1239     *
1240     * <p class="note">
1241     * You can <em>not</em> receive this through components declared
1242     * in manifests, only by exlicitly registering for it with
1243     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1244     * Context.registerReceiver()}.
1245     */
1246    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1247    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1248    /**
1249     * Broadcast Action:  Indicates low battery condition on the device.
1250     * This broadcast corresponds to the "Low battery warning" system dialog.
1251     */
1252    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1253    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1254    /**
1255     * Broadcast Action:  External power has been connected to the device.
1256     * This is intended for applications that wish to register specifically to this notification.
1257     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1258     * stay active to receive this notification.  This action can be used to implement actions
1259     * that wait until power is available to trigger.
1260     */
1261    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1262    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1263    /**
1264     * Broadcast Action:  External power has been removed from the device.
1265     * This is intended for applications that wish to register specifically to this notification.
1266     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1267     * stay active to receive this notification.  This action can be used to implement actions
1268     * that wait until power is available to trigger.
1269     */
1270    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1271    public static final String ACTION_POWER_DISCONNECTED = "android.intent.action.ACTION_POWER_DISCONNECTED";
1272    /**
1273     * Broadcast Action:  Indicates low memory condition on the device
1274     */
1275    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1276    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1277    /**
1278     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1279     */
1280    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1281    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1282    /**
1283     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1284     * and package management should be started.
1285     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1286     * notification.
1287     */
1288    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1289    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1290    /**
1291     * Broadcast Action:  The device has entered USB Mass Storage mode.
1292     * This is used mainly for the USB Settings panel.
1293     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1294     * when the SD card file system is mounted or unmounted
1295     */
1296    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1297    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1298
1299    /**
1300     * Broadcast Action:  The device has exited USB Mass Storage mode.
1301     * This is used mainly for the USB Settings panel.
1302     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1303     * when the SD card file system is mounted or unmounted
1304     */
1305    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1306    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1307
1308    /**
1309     * Broadcast Action:  External media has been removed.
1310     * The path to the mount point for the removed media is contained in the Intent.mData field.
1311     */
1312    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1313    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1314
1315    /**
1316     * Broadcast Action:  External media is present, but not mounted at its mount point.
1317     * The path to the mount point for the removed media is contained in the Intent.mData field.
1318     */
1319    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1320    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1321
1322    /**
1323     * Broadcast Action:  External media is present, and being disk-checked
1324     * The path to the mount point for the checking media is contained in the Intent.mData field.
1325     */
1326    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1327    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1328
1329    /**
1330     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1331     * The path to the mount point for the checking media is contained in the Intent.mData field.
1332     */
1333    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1334    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1335
1336    /**
1337     * Broadcast Action:  External media is present and mounted at its mount point.
1338     * The path to the mount point for the removed media is contained in the Intent.mData field.
1339     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1340     * media was mounted read only.
1341     */
1342    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1343    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1344
1345    /**
1346     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1347     * The path to the mount point for the removed media is contained in the Intent.mData field.
1348     */
1349    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1350    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1351
1352    /**
1353     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1354     * The path to the mount point for the removed media is contained in the Intent.mData field.
1355     */
1356    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1357    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1358
1359    /**
1360     * Broadcast Action:  External media is present but cannot be mounted.
1361     * The path to the mount point for the removed media is contained in the Intent.mData field.
1362     */
1363    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1364    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1365
1366   /**
1367     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1368     * Applications should close all files they have open within the mount point when they receive this intent.
1369     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1370     */
1371    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1372    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1373
1374    /**
1375     * Broadcast Action:  The media scanner has started scanning a directory.
1376     * The path to the directory being scanned is contained in the Intent.mData field.
1377     */
1378    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1379    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1380
1381   /**
1382     * Broadcast Action:  The media scanner has finished scanning a directory.
1383     * The path to the scanned directory is contained in the Intent.mData field.
1384     */
1385    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1386    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1387
1388   /**
1389     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1390     * The path to the file is contained in the Intent.mData field.
1391     */
1392    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1393    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1394
1395   /**
1396     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1397     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1398     * caused the broadcast.
1399     */
1400    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1401    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1402
1403    /**
1404     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1405     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1406     * caused the broadcast.
1407     */
1408    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1409    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1410
1411    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1412    // location; they are not general-purpose actions.
1413
1414    /**
1415     * Broadcast Action: An GTalk connection has been established.
1416     */
1417    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1418    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1419            "android.intent.action.GTALK_CONNECTED";
1420
1421    /**
1422     * Broadcast Action: An GTalk connection has been disconnected.
1423     */
1424    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1425    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1426            "android.intent.action.GTALK_DISCONNECTED";
1427
1428    /**
1429     * Broadcast Action: An input method has been changed.
1430     */
1431    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1432    public static final String ACTION_INPUT_METHOD_CHANGED =
1433            "android.intent.action.INPUT_METHOD_CHANGED";
1434
1435    /**
1436     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1437     * more radios have been turned off or on. The intent will have the following extra value:</p>
1438     * <ul>
1439     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1440     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1441     *   turned off</li>
1442     * </ul>
1443     */
1444    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1445    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1446
1447    /**
1448     * Broadcast Action: Some content providers have parts of their namespace
1449     * where they publish new events or items that the user may be especially
1450     * interested in. For these things, they may broadcast this action when the
1451     * set of interesting items change.
1452     *
1453     * For example, GmailProvider sends this notification when the set of unread
1454     * mail in the inbox changes.
1455     *
1456     * <p>The data of the intent identifies which part of which provider
1457     * changed. When queried through the content resolver, the data URI will
1458     * return the data set in question.
1459     *
1460     * <p>The intent will have the following extra values:
1461     * <ul>
1462     *   <li><em>count</em> - The number of items in the data set. This is the
1463     *       same as the number of items in the cursor returned by querying the
1464     *       data URI. </li>
1465     * </ul>
1466     *
1467     * This intent will be sent at boot (if the count is non-zero) and when the
1468     * data set changes. It is possible for the data set to change without the
1469     * count changing (for example, if a new unread message arrives in the same
1470     * sync operation in which a message is archived). The phone should still
1471     * ring/vibrate/etc as normal in this case.
1472     */
1473    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1474    public static final String ACTION_PROVIDER_CHANGED =
1475            "android.intent.action.PROVIDER_CHANGED";
1476
1477    /**
1478     * Broadcast Action: Wired Headset plugged in or unplugged.
1479     *
1480     * <p>The intent will have the following extra values:
1481     * <ul>
1482     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1483     *   <li><em>name</em> - Headset type, human readable string </li>
1484     * </ul>
1485     * </ul>
1486     */
1487    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1488    public static final String ACTION_HEADSET_PLUG =
1489            "android.intent.action.HEADSET_PLUG";
1490
1491    /**
1492     * Broadcast Action: An outgoing call is about to be placed.
1493     *
1494     * <p>The Intent will have the following extra value:
1495     * <ul>
1496     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1497     *       the phone number originally intended to be dialed.</li>
1498     * </ul>
1499     * <p>Once the broadcast is finished, the resultData is used as the actual
1500     * number to call.  If  <code>null</code>, no call will be placed.</p>
1501     * <p>It is perfectly acceptable for multiple receivers to process the
1502     * outgoing call in turn: for example, a parental control application
1503     * might verify that the user is authorized to place the call at that
1504     * time, then a number-rewriting application might add an area code if
1505     * one was not specified.</p>
1506     * <p>For consistency, any receiver whose purpose is to prohibit phone
1507     * calls should have a priority of 0, to ensure it will see the final
1508     * phone number to be dialed.
1509     * Any receiver whose purpose is to rewrite phone numbers to be called
1510     * should have a positive priority.
1511     * Negative priorities are reserved for the system for this broadcast;
1512     * using them may cause problems.</p>
1513     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1514     * abort the broadcast.</p>
1515     * <p>Emergency calls cannot be intercepted using this mechanism, and
1516     * other calls cannot be modified to call emergency numbers using this
1517     * mechanism.
1518     * <p>You must hold the
1519     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1520     * permission to receive this Intent.</p>
1521     */
1522    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1523    public static final String ACTION_NEW_OUTGOING_CALL =
1524            "android.intent.action.NEW_OUTGOING_CALL";
1525
1526    /**
1527     * Broadcast Action: Have the device reboot.  This is only for use by
1528     * system code.
1529     */
1530    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1531    public static final String ACTION_REBOOT =
1532            "android.intent.action.REBOOT";
1533
1534    // ---------------------------------------------------------------------
1535    // ---------------------------------------------------------------------
1536    // Standard intent categories (see addCategory()).
1537
1538    /**
1539     * Set if the activity should be an option for the default action
1540     * (center press) to perform on a piece of data.  Setting this will
1541     * hide from the user any activities without it set when performing an
1542     * action on some data.  Note that this is normal -not- set in the
1543     * Intent when initiating an action -- it is for use in intent filters
1544     * specified in packages.
1545     */
1546    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1547    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1548    /**
1549     * Activities that can be safely invoked from a browser must support this
1550     * category.  For example, if the user is viewing a web page or an e-mail
1551     * and clicks on a link in the text, the Intent generated execute that
1552     * link will require the BROWSABLE category, so that only activities
1553     * supporting this category will be considered as possible actions.  By
1554     * supporting this category, you are promising that there is nothing
1555     * damaging (without user intervention) that can happen by invoking any
1556     * matching Intent.
1557     */
1558    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1559    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1560    /**
1561     * Set if the activity should be considered as an alternative action to
1562     * the data the user is currently viewing.  See also
1563     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1564     * applies to the selection in a list of items.
1565     *
1566     * <p>Supporting this category means that you would like your activity to be
1567     * displayed in the set of alternative things the user can do, usually as
1568     * part of the current activity's options menu.  You will usually want to
1569     * include a specific label in the &lt;intent-filter&gt; of this action
1570     * describing to the user what it does.
1571     *
1572     * <p>The action of IntentFilter with this category is important in that it
1573     * describes the specific action the target will perform.  This generally
1574     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1575     * a specific name such as "com.android.camera.action.CROP.  Only one
1576     * alternative of any particular action will be shown to the user, so using
1577     * a specific action like this makes sure that your alternative will be
1578     * displayed while also allowing other applications to provide their own
1579     * overrides of that particular action.
1580     */
1581    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1582    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1583    /**
1584     * Set if the activity should be considered as an alternative selection
1585     * action to the data the user has currently selected.  This is like
1586     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1587     * of items from which the user can select, giving them alternatives to the
1588     * default action that will be performed on it.
1589     */
1590    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1591    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1592    /**
1593     * Intended to be used as a tab inside of an containing TabActivity.
1594     */
1595    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1596    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1597    /**
1598     * Should be displayed in the top-level launcher.
1599     */
1600    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1601    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1602    /**
1603     * Provides information about the package it is in; typically used if
1604     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1605     * a front-door to the user without having to be shown in the all apps list.
1606     */
1607    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1608    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1609    /**
1610     * This is the home activity, that is the first activity that is displayed
1611     * when the device boots.
1612     */
1613    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1614    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1615    /**
1616     * This activity is a preference panel.
1617     */
1618    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1619    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1620    /**
1621     * This activity is a development preference panel.
1622     */
1623    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1624    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1625    /**
1626     * Capable of running inside a parent activity container.
1627     */
1628    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1629    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1630    /**
1631     * This activity may be exercised by the monkey or other automated test tools.
1632     */
1633    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1634    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1635    /**
1636     * To be used as a test (not part of the normal user experience).
1637     */
1638    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1639    /**
1640     * To be used as a unit test (run through the Test Harness).
1641     */
1642    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1643    /**
1644     * To be used as an sample code example (not part of the normal user
1645     * experience).
1646     */
1647    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1648    /**
1649     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1650     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1651     * when queried, though it is allowable for those columns to be blank.
1652     */
1653    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1654    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1655
1656    /**
1657     * To be used as code under test for framework instrumentation tests.
1658     */
1659    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1660            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1661    // ---------------------------------------------------------------------
1662    // ---------------------------------------------------------------------
1663    // Standard extra data keys.
1664
1665    /**
1666     * The initial data to place in a newly created record.  Use with
1667     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1668     * fields as would be given to the underlying ContentProvider.insert()
1669     * call.
1670     */
1671    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1672
1673    /**
1674     * A constant CharSequence that is associated with the Intent, used with
1675     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1676     * this may be a styled CharSequence, so you must use
1677     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1678     * retrieve it.
1679     */
1680    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1681
1682    /**
1683     * A content: URI holding a stream of data associated with the Intent,
1684     * used with {@link #ACTION_SEND} to supply the data being sent.
1685     */
1686    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1687
1688    /**
1689     * A String[] holding e-mail addresses that should be delivered to.
1690     */
1691    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1692
1693    /**
1694     * A String[] holding e-mail addresses that should be carbon copied.
1695     */
1696    public static final String EXTRA_CC       = "android.intent.extra.CC";
1697
1698    /**
1699     * A String[] holding e-mail addresses that should be blind carbon copied.
1700     */
1701    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1702
1703    /**
1704     * A constant string holding the desired subject line of a message.
1705     */
1706    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1707
1708    /**
1709     * An Intent describing the choices you would like shown with
1710     * {@link #ACTION_PICK_ACTIVITY}.
1711     */
1712    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1713
1714    /**
1715     * A CharSequence dialog title to provide to the user when used with a
1716     * {@link #ACTION_CHOOSER}.
1717     */
1718    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1719
1720    /**
1721     * A {@link android.view.KeyEvent} object containing the event that
1722     * triggered the creation of the Intent it is in.
1723     */
1724    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1725
1726    /**
1727     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1728     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
1729     * of restarting the application.
1730     */
1731    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
1732
1733    /**
1734     * A String holding the phone number originally entered in
1735     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
1736     * number to call in a {@link android.content.Intent#ACTION_CALL}.
1737     */
1738    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
1739    /**
1740     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
1741     * intents to supply the uid the package had been assigned.  Also an optional
1742     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1743     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
1744     * purpose.
1745     */
1746    public static final String EXTRA_UID = "android.intent.extra.UID";
1747
1748    /**
1749     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1750     * intents to indicate whether this represents a full uninstall (removing
1751     * both the code and its data) or a partial uninstall (leaving its data,
1752     * implying that this is an update).
1753     */
1754    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
1755
1756    /**
1757     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1758     * intents to indicate that this is a replacement of the package, so this
1759     * broadcast will immediately be followed by an add broadcast for a
1760     * different version of the same package.
1761     */
1762    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
1763
1764    /**
1765     * Used as an int extra field in {@link android.app.AlarmManager} intents
1766     * to tell the application being invoked how many pending alarms are being
1767     * delievered with the intent.  For one-shot alarms this will always be 1.
1768     * For recurring alarms, this might be greater than 1 if the device was
1769     * asleep or powered off at the time an earlier alarm would have been
1770     * delivered.
1771     */
1772    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
1773
1774    // ---------------------------------------------------------------------
1775    // ---------------------------------------------------------------------
1776    // Intent flags (see mFlags variable).
1777
1778    /**
1779     * If set, the recipient of this Intent will be granted permission to
1780     * perform read operations on the Uri in the Intent's data.
1781     */
1782    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
1783    /**
1784     * If set, the recipient of this Intent will be granted permission to
1785     * perform write operations on the Uri in the Intent's data.
1786     */
1787    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
1788    /**
1789     * Can be set by the caller to indicate that this Intent is coming from
1790     * a background operation, not from direct user interaction.
1791     */
1792    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
1793    /**
1794     * A flag you can enable for debugging: when set, log messages will be
1795     * printed during the resolution of this intent to show you what has
1796     * been found to create the final resolved list.
1797     */
1798    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
1799
1800    /**
1801     * If set, the new activity is not kept in the history stack.  As soon as
1802     * the user navigates away from it, the activity is finished.  This may also
1803     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
1804     * noHistory} attribute.
1805     */
1806    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
1807    /**
1808     * If set, the activity will not be launched if it is already running
1809     * at the top of the history stack.
1810     */
1811    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
1812    /**
1813     * If set, this activity will become the start of a new task on this
1814     * history stack.  A task (from the activity that started it to the
1815     * next task activity) defines an atomic group of activities that the
1816     * user can move to.  Tasks can be moved to the foreground and background;
1817     * all of the activities inside of a particular task always remain in
1818     * the same order.  See
1819     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
1820     * Activities and Tasks</a> for more details on tasks.
1821     *
1822     * <p>This flag is generally used by activities that want
1823     * to present a "launcher" style behavior: they give the user a list of
1824     * separate things that can be done, which otherwise run completely
1825     * independently of the activity launching them.
1826     *
1827     * <p>When using this flag, if a task is already running for the activity
1828     * you are now starting, then a new activity will not be started; instead,
1829     * the current task will simply be brought to the front of the screen with
1830     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
1831     * to disable this behavior.
1832     *
1833     * <p>This flag can not be used when the caller is requesting a result from
1834     * the activity being launched.
1835     */
1836    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
1837    /**
1838     * <strong>Do not use this flag unless you are implementing your own
1839     * top-level application launcher.</strong>  Used in conjunction with
1840     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
1841     * behavior of bringing an existing task to the foreground.  When set,
1842     * a new task is <em>always</em> started to host the Activity for the
1843     * Intent, regardless of whether there is already an existing task running
1844     * the same thing.
1845     *
1846     * <p><strong>Because the default system does not include graphical task management,
1847     * you should not use this flag unless you provide some way for a user to
1848     * return back to the tasks you have launched.</strong>
1849     *
1850     * <p>This flag is ignored if
1851     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
1852     *
1853     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
1854     * Activities and Tasks</a> for more details on tasks.
1855     */
1856    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
1857    /**
1858     * If set, and the activity being launched is already running in the
1859     * current task, then instead of launching a new instance of that activity,
1860     * all of the other activities on top of it will be closed and this Intent
1861     * will be delivered to the (now on top) old activity as a new Intent.
1862     *
1863     * <p>For example, consider a task consisting of the activities: A, B, C, D.
1864     * If D calls startActivity() with an Intent that resolves to the component
1865     * of activity B, then C and D will be finished and B receive the given
1866     * Intent, resulting in the stack now being: A, B.
1867     *
1868     * <p>The currently running instance of task B in the above example will
1869     * either receive the new intent you are starting here in its
1870     * onNewIntent() method, or be itself finished and restarted with the
1871     * new intent.  If it has declared its launch mode to be "multiple" (the
1872     * default) it will be finished and re-created; for all other launch modes
1873     * it will receive the Intent in the current instance.
1874     *
1875     * <p>This launch mode can also be used to good effect in conjunction with
1876     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
1877     * of a task, it will bring any currently running instance of that task
1878     * to the foreground, and then clear it to its root state.  This is
1879     * especially useful, for example, when launching an activity from the
1880     * notification manager.
1881     *
1882     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
1883     * Activities and Tasks</a> for more details on tasks.
1884     */
1885    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
1886    /**
1887     * If set and this intent is being used to launch a new activity from an
1888     * existing one, then the reply target of the existing activity will be
1889     * transfered to the new activity.  This way the new activity can call
1890     * {@link android.app.Activity#setResult} and have that result sent back to
1891     * the reply target of the original activity.
1892     */
1893    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
1894    /**
1895     * If set and this intent is being used to launch a new activity from an
1896     * existing one, the current activity will not be counted as the top
1897     * activity for deciding whether the new intent should be delivered to
1898     * the top instead of starting a new one.  The previous activity will
1899     * be used as the top, with the assumption being that the current activity
1900     * will finish itself immediately.
1901     */
1902    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
1903    /**
1904     * If set, the new activity is not kept in the list of recently launched
1905     * activities.
1906     */
1907    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
1908    /**
1909     * This flag is not normally set by application code, but set for you by
1910     * the system as described in the
1911     * {@link android.R.styleable#AndroidManifestActivity_launchMode
1912     * launchMode} documentation for the singleTask mode.
1913     */
1914    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
1915    /**
1916     * If set, and this activity is either being started in a new task or
1917     * bringing to the top an existing task, then it will be launched as
1918     * the front door of the task.  This will result in the application of
1919     * any affinities needed to have that task in the proper state (either
1920     * moving activities to or from it), or simply resetting that task to
1921     * its initial state if needed.
1922     */
1923    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
1924    /**
1925     * This flag is not normally set by application code, but set for you by
1926     * the system if this activity is being launched from history
1927     * (longpress home key).
1928     */
1929    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
1930    /**
1931     * If set, this marks a point in the task's activity stack that should
1932     * be cleared when the task is reset.  That is, the next time the task
1933     * is broad to the foreground with
1934     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
1935     * the user re-launching it from home), this activity and all on top of
1936     * it will be finished so that the user does not return to them, but
1937     * instead returns to whatever activity preceeded it.
1938     *
1939     * <p>This is useful for cases where you have a logical break in your
1940     * application.  For example, an e-mail application may have a command
1941     * to view an attachment, which launches an image view activity to
1942     * display it.  This activity should be part of the e-mail application's
1943     * task, since it is a part of the task the user is involved in.  However,
1944     * if the user leaves that task, and later selects the e-mail app from
1945     * home, we may like them to return to the conversation they were
1946     * viewing, not the picture attachment, since that is confusing.  By
1947     * setting this flag when launching the image viewer, that viewer and
1948     * any activities it starts will be removed the next time the user returns
1949     * to mail.
1950     */
1951    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
1952    /**
1953     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
1954     * callback from occurring on the current frontmost activity before it is
1955     * paused as the newly-started activity is brought to the front.
1956     *
1957     * <p>Typically, an activity can rely on that callback to indicate that an
1958     * explicit user action has caused their activity to be moved out of the
1959     * foreground. The callback marks an appropriate point in the activity's
1960     * lifecycle for it to dismiss any notifications that it intends to display
1961     * "until the user has seen them," such as a blinking LED.
1962     *
1963     * <p>If an activity is ever started via any non-user-driven events such as
1964     * phone-call receipt or an alarm handler, this flag should be passed to {@link
1965     * Context#startActivity Context.startActivity}, ensuring that the pausing
1966     * activity does not think the user has acknowledged its notification.
1967     */
1968    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
1969    /**
1970     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
1971     * this flag will cause the launched activity to be brought to the front of its
1972     * task's history stack if it is already running.
1973     *
1974     * <p>For example, consider a task consisting of four activities: A, B, C, D.
1975     * If D calls startActivity() with an Intent that resolves to the component
1976     * of activity B, then B will be brought to the front of the history stack,
1977     * with this resulting order:  A, C, D, B.
1978     *
1979     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
1980     * specified.
1981     */
1982    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
1983    /**
1984     * If set, when sending a broadcast only registered receivers will be
1985     * called -- no BroadcastReceiver components will be launched.
1986     */
1987    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
1988    /**
1989     * If set, when sending a broadcast <i>before boot has completed</i> only
1990     * registered receivers will be called -- no BroadcastReceiver components
1991     * will be launched.  Sticky intent state will be recorded properly even
1992     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
1993     * is specified in the broadcast intent, this flag is unnecessary.
1994     *
1995     * <p>This flag is only for use by system sevices as a convenience to
1996     * avoid having to implement a more complex mechanism around detection
1997     * of boot completion.
1998     *
1999     * @hide
2000     */
2001    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2002
2003    // ---------------------------------------------------------------------
2004
2005    private String mAction;
2006    private Uri mData;
2007    private String mType;
2008    private ComponentName mComponent;
2009    private int mFlags;
2010    private HashSet<String> mCategories;
2011    private Bundle mExtras;
2012
2013    // ---------------------------------------------------------------------
2014
2015    /**
2016     * Create an empty intent.
2017     */
2018    public Intent() {
2019    }
2020
2021    /**
2022     * Copy constructor.
2023     */
2024    public Intent(Intent o) {
2025        this.mAction = o.mAction;
2026        this.mData = o.mData;
2027        this.mType = o.mType;
2028        this.mComponent = o.mComponent;
2029        this.mFlags = o.mFlags;
2030        if (o.mCategories != null) {
2031            this.mCategories = new HashSet<String>(o.mCategories);
2032        }
2033        if (o.mExtras != null) {
2034            this.mExtras = new Bundle(o.mExtras);
2035        }
2036    }
2037
2038    @Override
2039    public Object clone() {
2040        return new Intent(this);
2041    }
2042
2043    private Intent(Intent o, boolean all) {
2044        this.mAction = o.mAction;
2045        this.mData = o.mData;
2046        this.mType = o.mType;
2047        this.mComponent = o.mComponent;
2048        if (o.mCategories != null) {
2049            this.mCategories = new HashSet<String>(o.mCategories);
2050        }
2051    }
2052
2053    /**
2054     * Make a clone of only the parts of the Intent that are relevant for
2055     * filter matching: the action, data, type, component, and categories.
2056     */
2057    public Intent cloneFilter() {
2058        return new Intent(this, false);
2059    }
2060
2061    /**
2062     * Create an intent with a given action.  All other fields (data, type,
2063     * class) are null.  Note that the action <em>must</em> be in a
2064     * namespace because Intents are used globally in the system -- for
2065     * example the system VIEW action is android.intent.action.VIEW; an
2066     * application's custom action would be something like
2067     * com.google.app.myapp.CUSTOM_ACTION.
2068     *
2069     * @param action The Intent action, such as ACTION_VIEW.
2070     */
2071    public Intent(String action) {
2072        mAction = action;
2073    }
2074
2075    /**
2076     * Create an intent with a given action and for a given data url.  Note
2077     * that the action <em>must</em> be in a namespace because Intents are
2078     * used globally in the system -- for example the system VIEW action is
2079     * android.intent.action.VIEW; an application's custom action would be
2080     * something like com.google.app.myapp.CUSTOM_ACTION.
2081     *
2082     * @param action The Intent action, such as ACTION_VIEW.
2083     * @param uri The Intent data URI.
2084     */
2085    public Intent(String action, Uri uri) {
2086        mAction = action;
2087        mData = uri;
2088    }
2089
2090    /**
2091     * Create an intent for a specific component.  All other fields (action, data,
2092     * type, class) are null, though they can be modified later with explicit
2093     * calls.  This provides a convenient way to create an intent that is
2094     * intended to execute a hard-coded class name, rather than relying on the
2095     * system to find an appropriate class for you; see {@link #setComponent}
2096     * for more information on the repercussions of this.
2097     *
2098     * @param packageContext A Context of the application package implementing
2099     * this class.
2100     * @param cls The component class that is to be used for the intent.
2101     *
2102     * @see #setClass
2103     * @see #setComponent
2104     * @see #Intent(String, android.net.Uri , Context, Class)
2105     */
2106    public Intent(Context packageContext, Class<?> cls) {
2107        mComponent = new ComponentName(packageContext, cls);
2108    }
2109
2110    /**
2111     * Create an intent for a specific component with a specified action and data.
2112     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2113     * construct the Intent and then calling {@link #setClass} to set its
2114     * class.
2115     *
2116     * @param action The Intent action, such as ACTION_VIEW.
2117     * @param uri The Intent data URI.
2118     * @param packageContext A Context of the application package implementing
2119     * this class.
2120     * @param cls The component class that is to be used for the intent.
2121     *
2122     * @see #Intent(String, android.net.Uri)
2123     * @see #Intent(Context, Class)
2124     * @see #setClass
2125     * @see #setComponent
2126     */
2127    public Intent(String action, Uri uri,
2128            Context packageContext, Class<?> cls) {
2129        mAction = action;
2130        mData = uri;
2131        mComponent = new ComponentName(packageContext, cls);
2132    }
2133
2134    /**
2135     * Create an intent from a URI.  This URI may encode the action,
2136     * category, and other intent fields, if it was returned by toURI().  If
2137     * the Intent was not generate by toURI(), its data will be the entire URI
2138     * and its action will be ACTION_VIEW.
2139     *
2140     * <p>The URI given here must not be relative -- that is, it must include
2141     * the scheme and full path.
2142     *
2143     * @param uri The URI to turn into an Intent.
2144     *
2145     * @return Intent The newly created Intent object.
2146     *
2147     * @see #toURI
2148     */
2149    public static Intent getIntent(String uri) throws URISyntaxException {
2150        int i = 0;
2151        try {
2152            // simple case
2153            i = uri.lastIndexOf("#");
2154            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2155
2156            // old format Intent URI
2157            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2158
2159            // new format
2160            Intent intent = new Intent(ACTION_VIEW);
2161
2162            // fetch data part, if present
2163            if (i > 0) {
2164                intent.mData = Uri.parse(uri.substring(0, i));
2165            }
2166            i += "#Intent;".length();
2167
2168            // loop over contents of Intent, all name=value;
2169            while (!uri.startsWith("end", i)) {
2170                int eq = uri.indexOf('=', i);
2171                int semi = uri.indexOf(';', eq);
2172                String value = uri.substring(eq + 1, semi);
2173
2174                // action
2175                if (uri.startsWith("action=", i)) {
2176                    intent.mAction = value;
2177                }
2178
2179                // categories
2180                else if (uri.startsWith("category=", i)) {
2181                    intent.addCategory(value);
2182                }
2183
2184                // type
2185                else if (uri.startsWith("type=", i)) {
2186                    intent.mType = value;
2187                }
2188
2189                // launch  flags
2190                else if (uri.startsWith("launchFlags=", i)) {
2191                    intent.mFlags = Integer.decode(value).intValue();
2192                }
2193
2194                // component
2195                else if (uri.startsWith("component=", i)) {
2196                    intent.mComponent = ComponentName.unflattenFromString(value);
2197                }
2198
2199                // extra
2200                else {
2201                    String key = Uri.decode(uri.substring(i + 2, eq));
2202                    value = Uri.decode(value);
2203                    // create Bundle if it doesn't already exist
2204                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2205                    Bundle b = intent.mExtras;
2206                    // add EXTRA
2207                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2208                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2209                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2210                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2211                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2212                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2213                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2214                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2215                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2216                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2217                }
2218
2219                // move to the next item
2220                i = semi + 1;
2221            }
2222
2223            return intent;
2224
2225        } catch (IndexOutOfBoundsException e) {
2226            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2227        }
2228    }
2229
2230    public static Intent getIntentOld(String uri) throws URISyntaxException {
2231        Intent intent;
2232
2233        int i = uri.lastIndexOf('#');
2234        if (i >= 0) {
2235            Uri data = null;
2236            String action = null;
2237            if (i > 0) {
2238                data = Uri.parse(uri.substring(0, i));
2239            }
2240
2241            i++;
2242
2243            if (uri.regionMatches(i, "action(", 0, 7)) {
2244                i += 7;
2245                int j = uri.indexOf(')', i);
2246                action = uri.substring(i, j);
2247                i = j + 1;
2248            }
2249
2250            intent = new Intent(action, data);
2251
2252            if (uri.regionMatches(i, "categories(", 0, 11)) {
2253                i += 11;
2254                int j = uri.indexOf(')', i);
2255                while (i < j) {
2256                    int sep = uri.indexOf('!', i);
2257                    if (sep < 0) sep = j;
2258                    if (i < sep) {
2259                        intent.addCategory(uri.substring(i, sep));
2260                    }
2261                    i = sep + 1;
2262                }
2263                i = j + 1;
2264            }
2265
2266            if (uri.regionMatches(i, "type(", 0, 5)) {
2267                i += 5;
2268                int j = uri.indexOf(')', i);
2269                intent.mType = uri.substring(i, j);
2270                i = j + 1;
2271            }
2272
2273            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2274                i += 12;
2275                int j = uri.indexOf(')', i);
2276                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2277                i = j + 1;
2278            }
2279
2280            if (uri.regionMatches(i, "component(", 0, 10)) {
2281                i += 10;
2282                int j = uri.indexOf(')', i);
2283                int sep = uri.indexOf('!', i);
2284                if (sep >= 0 && sep < j) {
2285                    String pkg = uri.substring(i, sep);
2286                    String cls = uri.substring(sep + 1, j);
2287                    intent.mComponent = new ComponentName(pkg, cls);
2288                }
2289                i = j + 1;
2290            }
2291
2292            if (uri.regionMatches(i, "extras(", 0, 7)) {
2293                i += 7;
2294
2295                final int closeParen = uri.indexOf(')', i);
2296                if (closeParen == -1) throw new URISyntaxException(uri,
2297                        "EXTRA missing trailing ')'", i);
2298
2299                while (i < closeParen) {
2300                    // fetch the key value
2301                    int j = uri.indexOf('=', i);
2302                    if (j <= i + 1 || i >= closeParen) {
2303                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2304                    }
2305                    char type = uri.charAt(i);
2306                    i++;
2307                    String key = uri.substring(i, j);
2308                    i = j + 1;
2309
2310                    // get type-value
2311                    j = uri.indexOf('!', i);
2312                    if (j == -1 || j >= closeParen) j = closeParen;
2313                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2314                    String value = uri.substring(i, j);
2315                    i = j;
2316
2317                    // create Bundle if it doesn't already exist
2318                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2319
2320                    // add item to bundle
2321                    try {
2322                        switch (type) {
2323                            case 'S':
2324                                intent.mExtras.putString(key, Uri.decode(value));
2325                                break;
2326                            case 'B':
2327                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2328                                break;
2329                            case 'b':
2330                                intent.mExtras.putByte(key, Byte.parseByte(value));
2331                                break;
2332                            case 'c':
2333                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2334                                break;
2335                            case 'd':
2336                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2337                                break;
2338                            case 'f':
2339                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2340                                break;
2341                            case 'i':
2342                                intent.mExtras.putInt(key, Integer.parseInt(value));
2343                                break;
2344                            case 'l':
2345                                intent.mExtras.putLong(key, Long.parseLong(value));
2346                                break;
2347                            case 's':
2348                                intent.mExtras.putShort(key, Short.parseShort(value));
2349                                break;
2350                            default:
2351                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2352                        }
2353                    } catch (NumberFormatException e) {
2354                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2355                    }
2356
2357                    char ch = uri.charAt(i);
2358                    if (ch == ')') break;
2359                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2360                    i++;
2361                }
2362            }
2363
2364            if (intent.mAction == null) {
2365                // By default, if no action is specified, then use VIEW.
2366                intent.mAction = ACTION_VIEW;
2367            }
2368
2369        } else {
2370            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2371        }
2372
2373        return intent;
2374    }
2375
2376    /**
2377     * Retrieve the general action to be performed, such as
2378     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2379     * the information in the intent should be interpreted -- most importantly,
2380     * what to do with the data returned by {@link #getData}.
2381     *
2382     * @return The action of this intent or null if none is specified.
2383     *
2384     * @see #setAction
2385     */
2386    public String getAction() {
2387        return mAction;
2388    }
2389
2390    /**
2391     * Retrieve data this intent is operating on.  This URI specifies the name
2392     * of the data; often it uses the content: scheme, specifying data in a
2393     * content provider.  Other schemes may be handled by specific activities,
2394     * such as http: by the web browser.
2395     *
2396     * @return The URI of the data this intent is targeting or null.
2397     *
2398     * @see #getScheme
2399     * @see #setData
2400     */
2401    public Uri getData() {
2402        return mData;
2403    }
2404
2405    /**
2406     * The same as {@link #getData()}, but returns the URI as an encoded
2407     * String.
2408     */
2409    public String getDataString() {
2410        return mData != null ? mData.toString() : null;
2411    }
2412
2413    /**
2414     * Return the scheme portion of the intent's data.  If the data is null or
2415     * does not include a scheme, null is returned.  Otherwise, the scheme
2416     * prefix without the final ':' is returned, i.e. "http".
2417     *
2418     * <p>This is the same as calling getData().getScheme() (and checking for
2419     * null data).
2420     *
2421     * @return The scheme of this intent.
2422     *
2423     * @see #getData
2424     */
2425    public String getScheme() {
2426        return mData != null ? mData.getScheme() : null;
2427    }
2428
2429    /**
2430     * Retrieve any explicit MIME type included in the intent.  This is usually
2431     * null, as the type is determined by the intent data.
2432     *
2433     * @return If a type was manually set, it is returned; else null is
2434     *         returned.
2435     *
2436     * @see #resolveType(ContentResolver)
2437     * @see #setType
2438     */
2439    public String getType() {
2440        return mType;
2441    }
2442
2443    /**
2444     * Return the MIME data type of this intent.  If the type field is
2445     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2446     * the type of that data is returned.  If neither fields are set, a null is
2447     * returned.
2448     *
2449     * @return The MIME type of this intent.
2450     *
2451     * @see #getType
2452     * @see #resolveType(ContentResolver)
2453     */
2454    public String resolveType(Context context) {
2455        return resolveType(context.getContentResolver());
2456    }
2457
2458    /**
2459     * Return the MIME data type of this intent.  If the type field is
2460     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2461     * the type of that data is returned.  If neither fields are set, a null is
2462     * returned.
2463     *
2464     * @param resolver A ContentResolver that can be used to determine the MIME
2465     *                 type of the intent's data.
2466     *
2467     * @return The MIME type of this intent.
2468     *
2469     * @see #getType
2470     * @see #resolveType(Context)
2471     */
2472    public String resolveType(ContentResolver resolver) {
2473        if (mType != null) {
2474            return mType;
2475        }
2476        if (mData != null) {
2477            if ("content".equals(mData.getScheme())) {
2478                return resolver.getType(mData);
2479            }
2480        }
2481        return null;
2482    }
2483
2484    /**
2485     * Return the MIME data type of this intent, only if it will be needed for
2486     * intent resolution.  This is not generally useful for application code;
2487     * it is used by the frameworks for communicating with back-end system
2488     * services.
2489     *
2490     * @param resolver A ContentResolver that can be used to determine the MIME
2491     *                 type of the intent's data.
2492     *
2493     * @return The MIME type of this intent, or null if it is unknown or not
2494     *         needed.
2495     */
2496    public String resolveTypeIfNeeded(ContentResolver resolver) {
2497        if (mComponent != null) {
2498            return mType;
2499        }
2500        return resolveType(resolver);
2501    }
2502
2503    /**
2504     * Check if an category exists in the intent.
2505     *
2506     * @param category The category to check.
2507     *
2508     * @return boolean True if the intent contains the category, else false.
2509     *
2510     * @see #getCategories
2511     * @see #addCategory
2512     */
2513    public boolean hasCategory(String category) {
2514        return mCategories != null && mCategories.contains(category);
2515    }
2516
2517    /**
2518     * Return the set of all categories in the intent.  If there are no categories,
2519     * returns NULL.
2520     *
2521     * @return Set The set of categories you can examine.  Do not modify!
2522     *
2523     * @see #hasCategory
2524     * @see #addCategory
2525     */
2526    public Set<String> getCategories() {
2527        return mCategories;
2528    }
2529
2530    /**
2531     * Sets the ClassLoader that will be used when unmarshalling
2532     * any Parcelable values from the extras of this Intent.
2533     *
2534     * @param loader a ClassLoader, or null to use the default loader
2535     * at the time of unmarshalling.
2536     */
2537    public void setExtrasClassLoader(ClassLoader loader) {
2538        if (mExtras != null) {
2539            mExtras.setClassLoader(loader);
2540        }
2541    }
2542
2543    /**
2544     * Returns true if an extra value is associated with the given name.
2545     * @param name the extra's name
2546     * @return true if the given extra is present.
2547     */
2548    public boolean hasExtra(String name) {
2549        return mExtras != null && mExtras.containsKey(name);
2550    }
2551
2552    /**
2553     * Returns true if the Intent's extras contain a parcelled file descriptor.
2554     * @return true if the Intent contains a parcelled file descriptor.
2555     */
2556    public boolean hasFileDescriptors() {
2557        return mExtras != null && mExtras.hasFileDescriptors();
2558    }
2559
2560    /**
2561     * Retrieve extended data from the intent.
2562     *
2563     * @param name The name of the desired item.
2564     *
2565     * @return the value of an item that previously added with putExtra()
2566     * or null if none was found.
2567     *
2568     * @deprecated
2569     * @hide
2570     */
2571    @Deprecated
2572    public Object getExtra(String name) {
2573        return getExtra(name, null);
2574    }
2575
2576    /**
2577     * Retrieve extended data from the intent.
2578     *
2579     * @param name The name of the desired item.
2580     * @param defaultValue the value to be returned if no value of the desired
2581     * type is stored with the given name.
2582     *
2583     * @return the value of an item that previously added with putExtra()
2584     * or the default value if none was found.
2585     *
2586     * @see #putExtra(String, boolean)
2587     */
2588    public boolean getBooleanExtra(String name, boolean defaultValue) {
2589        return mExtras == null ? defaultValue :
2590            mExtras.getBoolean(name, defaultValue);
2591    }
2592
2593    /**
2594     * Retrieve extended data from the intent.
2595     *
2596     * @param name The name of the desired item.
2597     * @param defaultValue the value to be returned if no value of the desired
2598     * type is stored with the given name.
2599     *
2600     * @return the value of an item that previously added with putExtra()
2601     * or the default value if none was found.
2602     *
2603     * @see #putExtra(String, byte)
2604     */
2605    public byte getByteExtra(String name, byte defaultValue) {
2606        return mExtras == null ? defaultValue :
2607            mExtras.getByte(name, defaultValue);
2608    }
2609
2610    /**
2611     * Retrieve extended data from the intent.
2612     *
2613     * @param name The name of the desired item.
2614     * @param defaultValue the value to be returned if no value of the desired
2615     * type is stored with the given name.
2616     *
2617     * @return the value of an item that previously added with putExtra()
2618     * or the default value if none was found.
2619     *
2620     * @see #putExtra(String, short)
2621     */
2622    public short getShortExtra(String name, short defaultValue) {
2623        return mExtras == null ? defaultValue :
2624            mExtras.getShort(name, defaultValue);
2625    }
2626
2627    /**
2628     * Retrieve extended data from the intent.
2629     *
2630     * @param name The name of the desired item.
2631     * @param defaultValue the value to be returned if no value of the desired
2632     * type is stored with the given name.
2633     *
2634     * @return the value of an item that previously added with putExtra()
2635     * or the default value if none was found.
2636     *
2637     * @see #putExtra(String, char)
2638     */
2639    public char getCharExtra(String name, char defaultValue) {
2640        return mExtras == null ? defaultValue :
2641            mExtras.getChar(name, defaultValue);
2642    }
2643
2644    /**
2645     * Retrieve extended data from the intent.
2646     *
2647     * @param name The name of the desired item.
2648     * @param defaultValue the value to be returned if no value of the desired
2649     * type is stored with the given name.
2650     *
2651     * @return the value of an item that previously added with putExtra()
2652     * or the default value if none was found.
2653     *
2654     * @see #putExtra(String, int)
2655     */
2656    public int getIntExtra(String name, int defaultValue) {
2657        return mExtras == null ? defaultValue :
2658            mExtras.getInt(name, defaultValue);
2659    }
2660
2661    /**
2662     * Retrieve extended data from the intent.
2663     *
2664     * @param name The name of the desired item.
2665     * @param defaultValue the value to be returned if no value of the desired
2666     * type is stored with the given name.
2667     *
2668     * @return the value of an item that previously added with putExtra()
2669     * or the default value if none was found.
2670     *
2671     * @see #putExtra(String, long)
2672     */
2673    public long getLongExtra(String name, long defaultValue) {
2674        return mExtras == null ? defaultValue :
2675            mExtras.getLong(name, defaultValue);
2676    }
2677
2678    /**
2679     * Retrieve extended data from the intent.
2680     *
2681     * @param name The name of the desired item.
2682     * @param defaultValue the value to be returned if no value of the desired
2683     * type is stored with the given name.
2684     *
2685     * @return the value of an item that previously added with putExtra(),
2686     * or the default value if no such item is present
2687     *
2688     * @see #putExtra(String, float)
2689     */
2690    public float getFloatExtra(String name, float defaultValue) {
2691        return mExtras == null ? defaultValue :
2692            mExtras.getFloat(name, defaultValue);
2693    }
2694
2695    /**
2696     * Retrieve extended data from the intent.
2697     *
2698     * @param name The name of the desired item.
2699     * @param defaultValue the value to be returned if no value of the desired
2700     * type is stored with the given name.
2701     *
2702     * @return the value of an item that previously added with putExtra()
2703     * or the default value if none was found.
2704     *
2705     * @see #putExtra(String, double)
2706     */
2707    public double getDoubleExtra(String name, double defaultValue) {
2708        return mExtras == null ? defaultValue :
2709            mExtras.getDouble(name, defaultValue);
2710    }
2711
2712    /**
2713     * Retrieve extended data from the intent.
2714     *
2715     * @param name The name of the desired item.
2716     *
2717     * @return the value of an item that previously added with putExtra()
2718     * or null if no String value was found.
2719     *
2720     * @see #putExtra(String, String)
2721     */
2722    public String getStringExtra(String name) {
2723        return mExtras == null ? null : mExtras.getString(name);
2724    }
2725
2726    /**
2727     * Retrieve extended data from the intent.
2728     *
2729     * @param name The name of the desired item.
2730     *
2731     * @return the value of an item that previously added with putExtra()
2732     * or null if no CharSequence value was found.
2733     *
2734     * @see #putExtra(String, CharSequence)
2735     */
2736    public CharSequence getCharSequenceExtra(String name) {
2737        return mExtras == null ? null : mExtras.getCharSequence(name);
2738    }
2739
2740    /**
2741     * Retrieve extended data from the intent.
2742     *
2743     * @param name The name of the desired item.
2744     *
2745     * @return the value of an item that previously added with putExtra()
2746     * or null if no Parcelable value was found.
2747     *
2748     * @see #putExtra(String, Parcelable)
2749     */
2750    public <T extends Parcelable> T getParcelableExtra(String name) {
2751        return mExtras == null ? null : mExtras.<T>getParcelable(name);
2752    }
2753
2754    /**
2755     * Retrieve extended data from the intent.
2756     *
2757     * @param name The name of the desired item.
2758     *
2759     * @return the value of an item that previously added with putExtra()
2760     * or null if no Parcelable[] value was found.
2761     *
2762     * @see #putExtra(String, Parcelable[])
2763     */
2764    public Parcelable[] getParcelableArrayExtra(String name) {
2765        return mExtras == null ? null : mExtras.getParcelableArray(name);
2766    }
2767
2768    /**
2769     * Retrieve extended data from the intent.
2770     *
2771     * @param name The name of the desired item.
2772     *
2773     * @return the value of an item that previously added with putExtra()
2774     * or null if no ArrayList<Parcelable> value was found.
2775     *
2776     * @see #putParcelableArrayListExtra(String, ArrayList)
2777     */
2778    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
2779        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
2780    }
2781
2782    /**
2783     * Retrieve extended data from the intent.
2784     *
2785     * @param name The name of the desired item.
2786     *
2787     * @return the value of an item that previously added with putExtra()
2788     * or null if no Serializable value was found.
2789     *
2790     * @see #putExtra(String, Serializable)
2791     */
2792    public Serializable getSerializableExtra(String name) {
2793        return mExtras == null ? null : mExtras.getSerializable(name);
2794    }
2795
2796    /**
2797     * Retrieve extended data from the intent.
2798     *
2799     * @param name The name of the desired item.
2800     *
2801     * @return the value of an item that previously added with putExtra()
2802     * or null if no ArrayList<Integer> value was found.
2803     *
2804     * @see #putIntegerArrayListExtra(String, ArrayList)
2805     */
2806    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
2807        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
2808    }
2809
2810    /**
2811     * Retrieve extended data from the intent.
2812     *
2813     * @param name The name of the desired item.
2814     *
2815     * @return the value of an item that previously added with putExtra()
2816     * or null if no ArrayList<String> value was found.
2817     *
2818     * @see #putStringArrayListExtra(String, ArrayList)
2819     */
2820    public ArrayList<String> getStringArrayListExtra(String name) {
2821        return mExtras == null ? null : mExtras.getStringArrayList(name);
2822    }
2823
2824    /**
2825     * Retrieve extended data from the intent.
2826     *
2827     * @param name The name of the desired item.
2828     *
2829     * @return the value of an item that previously added with putExtra()
2830     * or null if no boolean array value was found.
2831     *
2832     * @see #putExtra(String, boolean[])
2833     */
2834    public boolean[] getBooleanArrayExtra(String name) {
2835        return mExtras == null ? null : mExtras.getBooleanArray(name);
2836    }
2837
2838    /**
2839     * Retrieve extended data from the intent.
2840     *
2841     * @param name The name of the desired item.
2842     *
2843     * @return the value of an item that previously added with putExtra()
2844     * or null if no byte array value was found.
2845     *
2846     * @see #putExtra(String, byte[])
2847     */
2848    public byte[] getByteArrayExtra(String name) {
2849        return mExtras == null ? null : mExtras.getByteArray(name);
2850    }
2851
2852    /**
2853     * Retrieve extended data from the intent.
2854     *
2855     * @param name The name of the desired item.
2856     *
2857     * @return the value of an item that previously added with putExtra()
2858     * or null if no short array value was found.
2859     *
2860     * @see #putExtra(String, short[])
2861     */
2862    public short[] getShortArrayExtra(String name) {
2863        return mExtras == null ? null : mExtras.getShortArray(name);
2864    }
2865
2866    /**
2867     * Retrieve extended data from the intent.
2868     *
2869     * @param name The name of the desired item.
2870     *
2871     * @return the value of an item that previously added with putExtra()
2872     * or null if no char array value was found.
2873     *
2874     * @see #putExtra(String, char[])
2875     */
2876    public char[] getCharArrayExtra(String name) {
2877        return mExtras == null ? null : mExtras.getCharArray(name);
2878    }
2879
2880    /**
2881     * Retrieve extended data from the intent.
2882     *
2883     * @param name The name of the desired item.
2884     *
2885     * @return the value of an item that previously added with putExtra()
2886     * or null if no int array value was found.
2887     *
2888     * @see #putExtra(String, int[])
2889     */
2890    public int[] getIntArrayExtra(String name) {
2891        return mExtras == null ? null : mExtras.getIntArray(name);
2892    }
2893
2894    /**
2895     * Retrieve extended data from the intent.
2896     *
2897     * @param name The name of the desired item.
2898     *
2899     * @return the value of an item that previously added with putExtra()
2900     * or null if no long array value was found.
2901     *
2902     * @see #putExtra(String, long[])
2903     */
2904    public long[] getLongArrayExtra(String name) {
2905        return mExtras == null ? null : mExtras.getLongArray(name);
2906    }
2907
2908    /**
2909     * Retrieve extended data from the intent.
2910     *
2911     * @param name The name of the desired item.
2912     *
2913     * @return the value of an item that previously added with putExtra()
2914     * or null if no float array value was found.
2915     *
2916     * @see #putExtra(String, float[])
2917     */
2918    public float[] getFloatArrayExtra(String name) {
2919        return mExtras == null ? null : mExtras.getFloatArray(name);
2920    }
2921
2922    /**
2923     * Retrieve extended data from the intent.
2924     *
2925     * @param name The name of the desired item.
2926     *
2927     * @return the value of an item that previously added with putExtra()
2928     * or null if no double array value was found.
2929     *
2930     * @see #putExtra(String, double[])
2931     */
2932    public double[] getDoubleArrayExtra(String name) {
2933        return mExtras == null ? null : mExtras.getDoubleArray(name);
2934    }
2935
2936    /**
2937     * Retrieve extended data from the intent.
2938     *
2939     * @param name The name of the desired item.
2940     *
2941     * @return the value of an item that previously added with putExtra()
2942     * or null if no String array value was found.
2943     *
2944     * @see #putExtra(String, String[])
2945     */
2946    public String[] getStringArrayExtra(String name) {
2947        return mExtras == null ? null : mExtras.getStringArray(name);
2948    }
2949
2950    /**
2951     * Retrieve extended data from the intent.
2952     *
2953     * @param name The name of the desired item.
2954     *
2955     * @return the value of an item that previously added with putExtra()
2956     * or null if no Bundle value was found.
2957     *
2958     * @see #putExtra(String, Bundle)
2959     */
2960    public Bundle getBundleExtra(String name) {
2961        return mExtras == null ? null : mExtras.getBundle(name);
2962    }
2963
2964    /**
2965     * Retrieve extended data from the intent.
2966     *
2967     * @param name The name of the desired item.
2968     *
2969     * @return the value of an item that previously added with putExtra()
2970     * or null if no IBinder value was found.
2971     *
2972     * @see #putExtra(String, IBinder)
2973     *
2974     * @deprecated
2975     * @hide
2976     */
2977    @Deprecated
2978    public IBinder getIBinderExtra(String name) {
2979        return mExtras == null ? null : mExtras.getIBinder(name);
2980    }
2981
2982    /**
2983     * Retrieve extended data from the intent.
2984     *
2985     * @param name The name of the desired item.
2986     * @param defaultValue The default value to return in case no item is
2987     * associated with the key 'name'
2988     *
2989     * @return the value of an item that previously added with putExtra()
2990     * or defaultValue if none was found.
2991     *
2992     * @see #putExtra
2993     *
2994     * @deprecated
2995     * @hide
2996     */
2997    @Deprecated
2998    public Object getExtra(String name, Object defaultValue) {
2999        Object result = defaultValue;
3000        if (mExtras != null) {
3001            Object result2 = mExtras.get(name);
3002            if (result2 != null) {
3003                result = result2;
3004            }
3005        }
3006
3007        return result;
3008    }
3009
3010    /**
3011     * Retrieves a map of extended data from the intent.
3012     *
3013     * @return the map of all extras previously added with putExtra(),
3014     * or null if none have been added.
3015     */
3016    public Bundle getExtras() {
3017        return (mExtras != null)
3018                ? new Bundle(mExtras)
3019                : null;
3020    }
3021
3022    /**
3023     * Retrieve any special flags associated with this intent.  You will
3024     * normally just set them with {@link #setFlags} and let the system
3025     * take the appropriate action with them.
3026     *
3027     * @return int The currently set flags.
3028     *
3029     * @see #setFlags
3030     */
3031    public int getFlags() {
3032        return mFlags;
3033    }
3034
3035    /**
3036     * Retrieve the concrete component associated with the intent.  When receiving
3037     * an intent, this is the component that was found to best handle it (that is,
3038     * yourself) and will always be non-null; in all other cases it will be
3039     * null unless explicitly set.
3040     *
3041     * @return The name of the application component to handle the intent.
3042     *
3043     * @see #resolveActivity
3044     * @see #setComponent
3045     */
3046    public ComponentName getComponent() {
3047        return mComponent;
3048    }
3049
3050    /**
3051     * Return the Activity component that should be used to handle this intent.
3052     * The appropriate component is determined based on the information in the
3053     * intent, evaluated as follows:
3054     *
3055     * <p>If {@link #getComponent} returns an explicit class, that is returned
3056     * without any further consideration.
3057     *
3058     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3059     * category to be considered.
3060     *
3061     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3062     * action.
3063     *
3064     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3065     * this type.
3066     *
3067     * <p>If {@link #addCategory} has added any categories, the activity must
3068     * handle ALL of the categories specified.
3069     *
3070     * <p>If there are no activities that satisfy all of these conditions, a
3071     * null string is returned.
3072     *
3073     * <p>If multiple activities are found to satisfy the intent, the one with
3074     * the highest priority will be used.  If there are multiple activities
3075     * with the same priority, the system will either pick the best activity
3076     * based on user preference, or resolve to a system class that will allow
3077     * the user to pick an activity and forward from there.
3078     *
3079     * <p>This method is implemented simply by calling
3080     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3081     * true.</p>
3082     * <p> This API is called for you as part of starting an activity from an
3083     * intent.  You do not normally need to call it yourself.</p>
3084     *
3085     * @param pm The package manager with which to resolve the Intent.
3086     *
3087     * @return Name of the component implementing an activity that can
3088     *         display the intent.
3089     *
3090     * @see #setComponent
3091     * @see #getComponent
3092     * @see #resolveActivityInfo
3093     */
3094    public ComponentName resolveActivity(PackageManager pm) {
3095        if (mComponent != null) {
3096            return mComponent;
3097        }
3098
3099        ResolveInfo info = pm.resolveActivity(
3100            this, PackageManager.MATCH_DEFAULT_ONLY);
3101        if (info != null) {
3102            return new ComponentName(
3103                    info.activityInfo.applicationInfo.packageName,
3104                    info.activityInfo.name);
3105        }
3106
3107        return null;
3108    }
3109
3110    /**
3111     * Resolve the Intent into an {@link ActivityInfo}
3112     * describing the activity that should execute the intent.  Resolution
3113     * follows the same rules as described for {@link #resolveActivity}, but
3114     * you get back the completely information about the resolved activity
3115     * instead of just its class name.
3116     *
3117     * @param pm The package manager with which to resolve the Intent.
3118     * @param flags Addition information to retrieve as per
3119     * {@link PackageManager#getActivityInfo(ComponentName, int)
3120     * PackageManager.getActivityInfo()}.
3121     *
3122     * @return PackageManager.ActivityInfo
3123     *
3124     * @see #resolveActivity
3125     */
3126    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3127        ActivityInfo ai = null;
3128        if (mComponent != null) {
3129            try {
3130                ai = pm.getActivityInfo(mComponent, flags);
3131            } catch (PackageManager.NameNotFoundException e) {
3132                // ignore
3133            }
3134        } else {
3135            ResolveInfo info = pm.resolveActivity(
3136                this, PackageManager.MATCH_DEFAULT_ONLY);
3137            if (info != null) {
3138                ai = info.activityInfo;
3139            }
3140        }
3141
3142        return ai;
3143    }
3144
3145    /**
3146     * Set the general action to be performed.
3147     *
3148     * @param action An action name, such as ACTION_VIEW.  Application-specific
3149     *               actions should be prefixed with the vendor's package name.
3150     *
3151     * @return Returns the same Intent object, for chaining multiple calls
3152     * into a single statement.
3153     *
3154     * @see #getAction
3155     */
3156    public Intent setAction(String action) {
3157        mAction = action;
3158        return this;
3159    }
3160
3161    /**
3162     * Set the data this intent is operating on.  This method automatically
3163     * clears any type that was previously set by {@link #setType}.
3164     *
3165     * @param data The URI of the data this intent is now targeting.
3166     *
3167     * @return Returns the same Intent object, for chaining multiple calls
3168     * into a single statement.
3169     *
3170     * @see #getData
3171     * @see #setType
3172     * @see #setDataAndType
3173     */
3174    public Intent setData(Uri data) {
3175        mData = data;
3176        mType = null;
3177        return this;
3178    }
3179
3180    /**
3181     * Set an explicit MIME data type.  This is used to create intents that
3182     * only specify a type and not data, for example to indicate the type of
3183     * data to return.  This method automatically clears any data that was
3184     * previously set by {@link #setData}.
3185     *
3186     * @param type The MIME type of the data being handled by this intent.
3187     *
3188     * @return Returns the same Intent object, for chaining multiple calls
3189     * into a single statement.
3190     *
3191     * @see #getType
3192     * @see #setData
3193     * @see #setDataAndType
3194     */
3195    public Intent setType(String type) {
3196        mData = null;
3197        mType = type;
3198        return this;
3199    }
3200
3201    /**
3202     * (Usually optional) Set the data for the intent along with an explicit
3203     * MIME data type.  This method should very rarely be used -- it allows you
3204     * to override the MIME type that would ordinarily be inferred from the
3205     * data with your own type given here.
3206     *
3207     * @param data The URI of the data this intent is now targeting.
3208     * @param type The MIME type of the data being handled by this intent.
3209     *
3210     * @return Returns the same Intent object, for chaining multiple calls
3211     * into a single statement.
3212     *
3213     * @see #setData
3214     * @see #setType
3215     */
3216    public Intent setDataAndType(Uri data, String type) {
3217        mData = data;
3218        mType = type;
3219        return this;
3220    }
3221
3222    /**
3223     * Add a new category to the intent.  Categories provide additional detail
3224     * about the action the intent is perform.  When resolving an intent, only
3225     * activities that provide <em>all</em> of the requested categories will be
3226     * used.
3227     *
3228     * @param category The desired category.  This can be either one of the
3229     *               predefined Intent categories, or a custom category in your own
3230     *               namespace.
3231     *
3232     * @return Returns the same Intent object, for chaining multiple calls
3233     * into a single statement.
3234     *
3235     * @see #hasCategory
3236     * @see #removeCategory
3237     */
3238    public Intent addCategory(String category) {
3239        if (mCategories == null) {
3240            mCategories = new HashSet<String>();
3241        }
3242        mCategories.add(category);
3243        return this;
3244    }
3245
3246    /**
3247     * Remove an category from an intent.
3248     *
3249     * @param category The category to remove.
3250     *
3251     * @see #addCategory
3252     */
3253    public void removeCategory(String category) {
3254        if (mCategories != null) {
3255            mCategories.remove(category);
3256            if (mCategories.size() == 0) {
3257                mCategories = null;
3258            }
3259        }
3260    }
3261
3262    /**
3263     * Add extended data to the intent.  The name must include a package
3264     * prefix, for example the app com.android.contacts would use names
3265     * like "com.android.contacts.ShowAll".
3266     *
3267     * @param name The name of the extra data, with package prefix.
3268     * @param value The boolean data value.
3269     *
3270     * @return Returns the same Intent object, for chaining multiple calls
3271     * into a single statement.
3272     *
3273     * @see #putExtras
3274     * @see #removeExtra
3275     * @see #getBooleanExtra(String, boolean)
3276     */
3277    public Intent putExtra(String name, boolean value) {
3278        if (mExtras == null) {
3279            mExtras = new Bundle();
3280        }
3281        mExtras.putBoolean(name, value);
3282        return this;
3283    }
3284
3285    /**
3286     * Add extended data to the intent.  The name must include a package
3287     * prefix, for example the app com.android.contacts would use names
3288     * like "com.android.contacts.ShowAll".
3289     *
3290     * @param name The name of the extra data, with package prefix.
3291     * @param value The byte data value.
3292     *
3293     * @return Returns the same Intent object, for chaining multiple calls
3294     * into a single statement.
3295     *
3296     * @see #putExtras
3297     * @see #removeExtra
3298     * @see #getByteExtra(String, byte)
3299     */
3300    public Intent putExtra(String name, byte value) {
3301        if (mExtras == null) {
3302            mExtras = new Bundle();
3303        }
3304        mExtras.putByte(name, value);
3305        return this;
3306    }
3307
3308    /**
3309     * Add extended data to the intent.  The name must include a package
3310     * prefix, for example the app com.android.contacts would use names
3311     * like "com.android.contacts.ShowAll".
3312     *
3313     * @param name The name of the extra data, with package prefix.
3314     * @param value The char data value.
3315     *
3316     * @return Returns the same Intent object, for chaining multiple calls
3317     * into a single statement.
3318     *
3319     * @see #putExtras
3320     * @see #removeExtra
3321     * @see #getCharExtra(String, char)
3322     */
3323    public Intent putExtra(String name, char value) {
3324        if (mExtras == null) {
3325            mExtras = new Bundle();
3326        }
3327        mExtras.putChar(name, value);
3328        return this;
3329    }
3330
3331    /**
3332     * Add extended data to the intent.  The name must include a package
3333     * prefix, for example the app com.android.contacts would use names
3334     * like "com.android.contacts.ShowAll".
3335     *
3336     * @param name The name of the extra data, with package prefix.
3337     * @param value The short data value.
3338     *
3339     * @return Returns the same Intent object, for chaining multiple calls
3340     * into a single statement.
3341     *
3342     * @see #putExtras
3343     * @see #removeExtra
3344     * @see #getShortExtra(String, short)
3345     */
3346    public Intent putExtra(String name, short value) {
3347        if (mExtras == null) {
3348            mExtras = new Bundle();
3349        }
3350        mExtras.putShort(name, value);
3351        return this;
3352    }
3353
3354    /**
3355     * Add extended data to the intent.  The name must include a package
3356     * prefix, for example the app com.android.contacts would use names
3357     * like "com.android.contacts.ShowAll".
3358     *
3359     * @param name The name of the extra data, with package prefix.
3360     * @param value The integer data value.
3361     *
3362     * @return Returns the same Intent object, for chaining multiple calls
3363     * into a single statement.
3364     *
3365     * @see #putExtras
3366     * @see #removeExtra
3367     * @see #getIntExtra(String, int)
3368     */
3369    public Intent putExtra(String name, int value) {
3370        if (mExtras == null) {
3371            mExtras = new Bundle();
3372        }
3373        mExtras.putInt(name, value);
3374        return this;
3375    }
3376
3377    /**
3378     * Add extended data to the intent.  The name must include a package
3379     * prefix, for example the app com.android.contacts would use names
3380     * like "com.android.contacts.ShowAll".
3381     *
3382     * @param name The name of the extra data, with package prefix.
3383     * @param value The long data value.
3384     *
3385     * @return Returns the same Intent object, for chaining multiple calls
3386     * into a single statement.
3387     *
3388     * @see #putExtras
3389     * @see #removeExtra
3390     * @see #getLongExtra(String, long)
3391     */
3392    public Intent putExtra(String name, long value) {
3393        if (mExtras == null) {
3394            mExtras = new Bundle();
3395        }
3396        mExtras.putLong(name, value);
3397        return this;
3398    }
3399
3400    /**
3401     * Add extended data to the intent.  The name must include a package
3402     * prefix, for example the app com.android.contacts would use names
3403     * like "com.android.contacts.ShowAll".
3404     *
3405     * @param name The name of the extra data, with package prefix.
3406     * @param value The float data value.
3407     *
3408     * @return Returns the same Intent object, for chaining multiple calls
3409     * into a single statement.
3410     *
3411     * @see #putExtras
3412     * @see #removeExtra
3413     * @see #getFloatExtra(String, float)
3414     */
3415    public Intent putExtra(String name, float value) {
3416        if (mExtras == null) {
3417            mExtras = new Bundle();
3418        }
3419        mExtras.putFloat(name, value);
3420        return this;
3421    }
3422
3423    /**
3424     * Add extended data to the intent.  The name must include a package
3425     * prefix, for example the app com.android.contacts would use names
3426     * like "com.android.contacts.ShowAll".
3427     *
3428     * @param name The name of the extra data, with package prefix.
3429     * @param value The double data value.
3430     *
3431     * @return Returns the same Intent object, for chaining multiple calls
3432     * into a single statement.
3433     *
3434     * @see #putExtras
3435     * @see #removeExtra
3436     * @see #getDoubleExtra(String, double)
3437     */
3438    public Intent putExtra(String name, double value) {
3439        if (mExtras == null) {
3440            mExtras = new Bundle();
3441        }
3442        mExtras.putDouble(name, value);
3443        return this;
3444    }
3445
3446    /**
3447     * Add extended data to the intent.  The name must include a package
3448     * prefix, for example the app com.android.contacts would use names
3449     * like "com.android.contacts.ShowAll".
3450     *
3451     * @param name The name of the extra data, with package prefix.
3452     * @param value The String data value.
3453     *
3454     * @return Returns the same Intent object, for chaining multiple calls
3455     * into a single statement.
3456     *
3457     * @see #putExtras
3458     * @see #removeExtra
3459     * @see #getStringExtra(String)
3460     */
3461    public Intent putExtra(String name, String value) {
3462        if (mExtras == null) {
3463            mExtras = new Bundle();
3464        }
3465        mExtras.putString(name, value);
3466        return this;
3467    }
3468
3469    /**
3470     * Add extended data to the intent.  The name must include a package
3471     * prefix, for example the app com.android.contacts would use names
3472     * like "com.android.contacts.ShowAll".
3473     *
3474     * @param name The name of the extra data, with package prefix.
3475     * @param value The CharSequence data value.
3476     *
3477     * @return Returns the same Intent object, for chaining multiple calls
3478     * into a single statement.
3479     *
3480     * @see #putExtras
3481     * @see #removeExtra
3482     * @see #getCharSequenceExtra(String)
3483     */
3484    public Intent putExtra(String name, CharSequence value) {
3485        if (mExtras == null) {
3486            mExtras = new Bundle();
3487        }
3488        mExtras.putCharSequence(name, value);
3489        return this;
3490    }
3491
3492    /**
3493     * Add extended data to the intent.  The name must include a package
3494     * prefix, for example the app com.android.contacts would use names
3495     * like "com.android.contacts.ShowAll".
3496     *
3497     * @param name The name of the extra data, with package prefix.
3498     * @param value The Parcelable data value.
3499     *
3500     * @return Returns the same Intent object, for chaining multiple calls
3501     * into a single statement.
3502     *
3503     * @see #putExtras
3504     * @see #removeExtra
3505     * @see #getParcelableExtra(String)
3506     */
3507    public Intent putExtra(String name, Parcelable value) {
3508        if (mExtras == null) {
3509            mExtras = new Bundle();
3510        }
3511        mExtras.putParcelable(name, value);
3512        return this;
3513    }
3514
3515    /**
3516     * Add extended data to the intent.  The name must include a package
3517     * prefix, for example the app com.android.contacts would use names
3518     * like "com.android.contacts.ShowAll".
3519     *
3520     * @param name The name of the extra data, with package prefix.
3521     * @param value The Parcelable[] data value.
3522     *
3523     * @return Returns the same Intent object, for chaining multiple calls
3524     * into a single statement.
3525     *
3526     * @see #putExtras
3527     * @see #removeExtra
3528     * @see #getParcelableArrayExtra(String)
3529     */
3530    public Intent putExtra(String name, Parcelable[] value) {
3531        if (mExtras == null) {
3532            mExtras = new Bundle();
3533        }
3534        mExtras.putParcelableArray(name, value);
3535        return this;
3536    }
3537
3538    /**
3539     * Add extended data to the intent.  The name must include a package
3540     * prefix, for example the app com.android.contacts would use names
3541     * like "com.android.contacts.ShowAll".
3542     *
3543     * @param name The name of the extra data, with package prefix.
3544     * @param value The ArrayList<Parcelable> data value.
3545     *
3546     * @return Returns the same Intent object, for chaining multiple calls
3547     * into a single statement.
3548     *
3549     * @see #putExtras
3550     * @see #removeExtra
3551     * @see #getParcelableArrayListExtra(String)
3552     */
3553    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
3554        if (mExtras == null) {
3555            mExtras = new Bundle();
3556        }
3557        mExtras.putParcelableArrayList(name, value);
3558        return this;
3559    }
3560
3561    /**
3562     * Add extended data to the intent.  The name must include a package
3563     * prefix, for example the app com.android.contacts would use names
3564     * like "com.android.contacts.ShowAll".
3565     *
3566     * @param name The name of the extra data, with package prefix.
3567     * @param value The ArrayList<Integer> data value.
3568     *
3569     * @return Returns the same Intent object, for chaining multiple calls
3570     * into a single statement.
3571     *
3572     * @see #putExtras
3573     * @see #removeExtra
3574     * @see #getIntegerArrayListExtra(String)
3575     */
3576    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
3577        if (mExtras == null) {
3578            mExtras = new Bundle();
3579        }
3580        mExtras.putIntegerArrayList(name, value);
3581        return this;
3582    }
3583
3584    /**
3585     * Add extended data to the intent.  The name must include a package
3586     * prefix, for example the app com.android.contacts would use names
3587     * like "com.android.contacts.ShowAll".
3588     *
3589     * @param name The name of the extra data, with package prefix.
3590     * @param value The ArrayList<String> data value.
3591     *
3592     * @return Returns the same Intent object, for chaining multiple calls
3593     * into a single statement.
3594     *
3595     * @see #putExtras
3596     * @see #removeExtra
3597     * @see #getStringArrayListExtra(String)
3598     */
3599    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
3600        if (mExtras == null) {
3601            mExtras = new Bundle();
3602        }
3603        mExtras.putStringArrayList(name, value);
3604        return this;
3605    }
3606
3607    /**
3608     * Add extended data to the intent.  The name must include a package
3609     * prefix, for example the app com.android.contacts would use names
3610     * like "com.android.contacts.ShowAll".
3611     *
3612     * @param name The name of the extra data, with package prefix.
3613     * @param value The Serializable data value.
3614     *
3615     * @return Returns the same Intent object, for chaining multiple calls
3616     * into a single statement.
3617     *
3618     * @see #putExtras
3619     * @see #removeExtra
3620     * @see #getSerializableExtra(String)
3621     */
3622    public Intent putExtra(String name, Serializable value) {
3623        if (mExtras == null) {
3624            mExtras = new Bundle();
3625        }
3626        mExtras.putSerializable(name, value);
3627        return this;
3628    }
3629
3630    /**
3631     * Add extended data to the intent.  The name must include a package
3632     * prefix, for example the app com.android.contacts would use names
3633     * like "com.android.contacts.ShowAll".
3634     *
3635     * @param name The name of the extra data, with package prefix.
3636     * @param value The boolean array data value.
3637     *
3638     * @return Returns the same Intent object, for chaining multiple calls
3639     * into a single statement.
3640     *
3641     * @see #putExtras
3642     * @see #removeExtra
3643     * @see #getBooleanArrayExtra(String)
3644     */
3645    public Intent putExtra(String name, boolean[] value) {
3646        if (mExtras == null) {
3647            mExtras = new Bundle();
3648        }
3649        mExtras.putBooleanArray(name, value);
3650        return this;
3651    }
3652
3653    /**
3654     * Add extended data to the intent.  The name must include a package
3655     * prefix, for example the app com.android.contacts would use names
3656     * like "com.android.contacts.ShowAll".
3657     *
3658     * @param name The name of the extra data, with package prefix.
3659     * @param value The byte array data value.
3660     *
3661     * @return Returns the same Intent object, for chaining multiple calls
3662     * into a single statement.
3663     *
3664     * @see #putExtras
3665     * @see #removeExtra
3666     * @see #getByteArrayExtra(String)
3667     */
3668    public Intent putExtra(String name, byte[] value) {
3669        if (mExtras == null) {
3670            mExtras = new Bundle();
3671        }
3672        mExtras.putByteArray(name, value);
3673        return this;
3674    }
3675
3676    /**
3677     * Add extended data to the intent.  The name must include a package
3678     * prefix, for example the app com.android.contacts would use names
3679     * like "com.android.contacts.ShowAll".
3680     *
3681     * @param name The name of the extra data, with package prefix.
3682     * @param value The short array data value.
3683     *
3684     * @return Returns the same Intent object, for chaining multiple calls
3685     * into a single statement.
3686     *
3687     * @see #putExtras
3688     * @see #removeExtra
3689     * @see #getShortArrayExtra(String)
3690     */
3691    public Intent putExtra(String name, short[] value) {
3692        if (mExtras == null) {
3693            mExtras = new Bundle();
3694        }
3695        mExtras.putShortArray(name, value);
3696        return this;
3697    }
3698
3699    /**
3700     * Add extended data to the intent.  The name must include a package
3701     * prefix, for example the app com.android.contacts would use names
3702     * like "com.android.contacts.ShowAll".
3703     *
3704     * @param name The name of the extra data, with package prefix.
3705     * @param value The char array data value.
3706     *
3707     * @return Returns the same Intent object, for chaining multiple calls
3708     * into a single statement.
3709     *
3710     * @see #putExtras
3711     * @see #removeExtra
3712     * @see #getCharArrayExtra(String)
3713     */
3714    public Intent putExtra(String name, char[] value) {
3715        if (mExtras == null) {
3716            mExtras = new Bundle();
3717        }
3718        mExtras.putCharArray(name, value);
3719        return this;
3720    }
3721
3722    /**
3723     * Add extended data to the intent.  The name must include a package
3724     * prefix, for example the app com.android.contacts would use names
3725     * like "com.android.contacts.ShowAll".
3726     *
3727     * @param name The name of the extra data, with package prefix.
3728     * @param value The int array data value.
3729     *
3730     * @return Returns the same Intent object, for chaining multiple calls
3731     * into a single statement.
3732     *
3733     * @see #putExtras
3734     * @see #removeExtra
3735     * @see #getIntArrayExtra(String)
3736     */
3737    public Intent putExtra(String name, int[] value) {
3738        if (mExtras == null) {
3739            mExtras = new Bundle();
3740        }
3741        mExtras.putIntArray(name, value);
3742        return this;
3743    }
3744
3745    /**
3746     * Add extended data to the intent.  The name must include a package
3747     * prefix, for example the app com.android.contacts would use names
3748     * like "com.android.contacts.ShowAll".
3749     *
3750     * @param name The name of the extra data, with package prefix.
3751     * @param value The byte array data value.
3752     *
3753     * @return Returns the same Intent object, for chaining multiple calls
3754     * into a single statement.
3755     *
3756     * @see #putExtras
3757     * @see #removeExtra
3758     * @see #getLongArrayExtra(String)
3759     */
3760    public Intent putExtra(String name, long[] value) {
3761        if (mExtras == null) {
3762            mExtras = new Bundle();
3763        }
3764        mExtras.putLongArray(name, value);
3765        return this;
3766    }
3767
3768    /**
3769     * Add extended data to the intent.  The name must include a package
3770     * prefix, for example the app com.android.contacts would use names
3771     * like "com.android.contacts.ShowAll".
3772     *
3773     * @param name The name of the extra data, with package prefix.
3774     * @param value The float array data value.
3775     *
3776     * @return Returns the same Intent object, for chaining multiple calls
3777     * into a single statement.
3778     *
3779     * @see #putExtras
3780     * @see #removeExtra
3781     * @see #getFloatArrayExtra(String)
3782     */
3783    public Intent putExtra(String name, float[] value) {
3784        if (mExtras == null) {
3785            mExtras = new Bundle();
3786        }
3787        mExtras.putFloatArray(name, value);
3788        return this;
3789    }
3790
3791    /**
3792     * Add extended data to the intent.  The name must include a package
3793     * prefix, for example the app com.android.contacts would use names
3794     * like "com.android.contacts.ShowAll".
3795     *
3796     * @param name The name of the extra data, with package prefix.
3797     * @param value The double array data value.
3798     *
3799     * @return Returns the same Intent object, for chaining multiple calls
3800     * into a single statement.
3801     *
3802     * @see #putExtras
3803     * @see #removeExtra
3804     * @see #getDoubleArrayExtra(String)
3805     */
3806    public Intent putExtra(String name, double[] value) {
3807        if (mExtras == null) {
3808            mExtras = new Bundle();
3809        }
3810        mExtras.putDoubleArray(name, value);
3811        return this;
3812    }
3813
3814    /**
3815     * Add extended data to the intent.  The name must include a package
3816     * prefix, for example the app com.android.contacts would use names
3817     * like "com.android.contacts.ShowAll".
3818     *
3819     * @param name The name of the extra data, with package prefix.
3820     * @param value The String array data value.
3821     *
3822     * @return Returns the same Intent object, for chaining multiple calls
3823     * into a single statement.
3824     *
3825     * @see #putExtras
3826     * @see #removeExtra
3827     * @see #getStringArrayExtra(String)
3828     */
3829    public Intent putExtra(String name, String[] value) {
3830        if (mExtras == null) {
3831            mExtras = new Bundle();
3832        }
3833        mExtras.putStringArray(name, value);
3834        return this;
3835    }
3836
3837    /**
3838     * Add extended data to the intent.  The name must include a package
3839     * prefix, for example the app com.android.contacts would use names
3840     * like "com.android.contacts.ShowAll".
3841     *
3842     * @param name The name of the extra data, with package prefix.
3843     * @param value The Bundle data value.
3844     *
3845     * @return Returns the same Intent object, for chaining multiple calls
3846     * into a single statement.
3847     *
3848     * @see #putExtras
3849     * @see #removeExtra
3850     * @see #getBundleExtra(String)
3851     */
3852    public Intent putExtra(String name, Bundle value) {
3853        if (mExtras == null) {
3854            mExtras = new Bundle();
3855        }
3856        mExtras.putBundle(name, value);
3857        return this;
3858    }
3859
3860    /**
3861     * Add extended data to the intent.  The name must include a package
3862     * prefix, for example the app com.android.contacts would use names
3863     * like "com.android.contacts.ShowAll".
3864     *
3865     * @param name The name of the extra data, with package prefix.
3866     * @param value The IBinder data value.
3867     *
3868     * @return Returns the same Intent object, for chaining multiple calls
3869     * into a single statement.
3870     *
3871     * @see #putExtras
3872     * @see #removeExtra
3873     * @see #getIBinderExtra(String)
3874     *
3875     * @deprecated
3876     * @hide
3877     */
3878    @Deprecated
3879    public Intent putExtra(String name, IBinder value) {
3880        if (mExtras == null) {
3881            mExtras = new Bundle();
3882        }
3883        mExtras.putIBinder(name, value);
3884        return this;
3885    }
3886
3887    /**
3888     * Copy all extras in 'src' in to this intent.
3889     *
3890     * @param src Contains the extras to copy.
3891     *
3892     * @see #putExtra
3893     */
3894    public Intent putExtras(Intent src) {
3895        if (src.mExtras != null) {
3896            if (mExtras == null) {
3897                mExtras = new Bundle(src.mExtras);
3898            } else {
3899                mExtras.putAll(src.mExtras);
3900            }
3901        }
3902        return this;
3903    }
3904
3905    /**
3906     * Add a set of extended data to the intent.  The keys must include a package
3907     * prefix, for example the app com.android.contacts would use names
3908     * like "com.android.contacts.ShowAll".
3909     *
3910     * @param extras The Bundle of extras to add to this intent.
3911     *
3912     * @see #putExtra
3913     * @see #removeExtra
3914     */
3915    public Intent putExtras(Bundle extras) {
3916        if (mExtras == null) {
3917            mExtras = new Bundle();
3918        }
3919        mExtras.putAll(extras);
3920        return this;
3921    }
3922
3923    /**
3924     * Completely replace the extras in the Intent with the extras in the
3925     * given Intent.
3926     *
3927     * @param src The exact extras contained in this Intent are copied
3928     * into the target intent, replacing any that were previously there.
3929     */
3930    public Intent replaceExtras(Intent src) {
3931        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
3932        return this;
3933    }
3934
3935    /**
3936     * Completely replace the extras in the Intent with the given Bundle of
3937     * extras.
3938     *
3939     * @param extras The new set of extras in the Intent, or null to erase
3940     * all extras.
3941     */
3942    public Intent replaceExtras(Bundle extras) {
3943        mExtras = extras != null ? new Bundle(extras) : null;
3944        return this;
3945    }
3946
3947    /**
3948     * Remove extended data from the intent.
3949     *
3950     * @see #putExtra
3951     */
3952    public void removeExtra(String name) {
3953        if (mExtras != null) {
3954            mExtras.remove(name);
3955            if (mExtras.size() == 0) {
3956                mExtras = null;
3957            }
3958        }
3959    }
3960
3961    /**
3962     * Set special flags controlling how this intent is handled.  Most values
3963     * here depend on the type of component being executed by the Intent,
3964     * specifically the FLAG_ACTIVITY_* flags are all for use with
3965     * {@link Context#startActivity Context.startActivity()} and the
3966     * FLAG_RECEIVER_* flags are all for use with
3967     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
3968     *
3969     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
3970     * Activities and Tasks</a> documentation for important information on how some of these options impact
3971     * the behavior of your application.
3972     *
3973     * @param flags The desired flags.
3974     *
3975     * @return Returns the same Intent object, for chaining multiple calls
3976     * into a single statement.
3977     *
3978     * @see #getFlags
3979     * @see #addFlags
3980     *
3981     * @see #FLAG_GRANT_READ_URI_PERMISSION
3982     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
3983     * @see #FLAG_DEBUG_LOG_RESOLUTION
3984     * @see #FLAG_FROM_BACKGROUND
3985     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
3986     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
3987     * @see #FLAG_ACTIVITY_CLEAR_TOP
3988     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
3989     * @see #FLAG_ACTIVITY_FORWARD_RESULT
3990     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
3991     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
3992     * @see #FLAG_ACTIVITY_NEW_TASK
3993     * @see #FLAG_ACTIVITY_NO_HISTORY
3994     * @see #FLAG_ACTIVITY_NO_USER_ACTION
3995     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
3996     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
3997     * @see #FLAG_ACTIVITY_SINGLE_TOP
3998     * @see #FLAG_RECEIVER_REGISTERED_ONLY
3999     */
4000    public Intent setFlags(int flags) {
4001        mFlags = flags;
4002        return this;
4003    }
4004
4005    /**
4006     * Add additional flags to the intent (or with existing flags
4007     * value).
4008     *
4009     * @param flags The new flags to set.
4010     *
4011     * @return Returns the same Intent object, for chaining multiple calls
4012     * into a single statement.
4013     *
4014     * @see #setFlags
4015     */
4016    public Intent addFlags(int flags) {
4017        mFlags |= flags;
4018        return this;
4019    }
4020
4021    /**
4022     * (Usually optional) Explicitly set the component to handle the intent.
4023     * If left with the default value of null, the system will determine the
4024     * appropriate class to use based on the other fields (action, data,
4025     * type, categories) in the Intent.  If this class is defined, the
4026     * specified class will always be used regardless of the other fields.  You
4027     * should only set this value when you know you absolutely want a specific
4028     * class to be used; otherwise it is better to let the system find the
4029     * appropriate class so that you will respect the installed applications
4030     * and user preferences.
4031     *
4032     * @param component The name of the application component to handle the
4033     * intent, or null to let the system find one for you.
4034     *
4035     * @return Returns the same Intent object, for chaining multiple calls
4036     * into a single statement.
4037     *
4038     * @see #setClass
4039     * @see #setClassName(Context, String)
4040     * @see #setClassName(String, String)
4041     * @see #getComponent
4042     * @see #resolveActivity
4043     */
4044    public Intent setComponent(ComponentName component) {
4045        mComponent = component;
4046        return this;
4047    }
4048
4049    /**
4050     * Convenience for calling {@link #setComponent} with an
4051     * explicit class name.
4052     *
4053     * @param packageContext A Context of the application package implementing
4054     * this class.
4055     * @param className The name of a class inside of the application package
4056     * that will be used as the component for this Intent.
4057     *
4058     * @return Returns the same Intent object, for chaining multiple calls
4059     * into a single statement.
4060     *
4061     * @see #setComponent
4062     * @see #setClass
4063     */
4064    public Intent setClassName(Context packageContext, String className) {
4065        mComponent = new ComponentName(packageContext, className);
4066        return this;
4067    }
4068
4069    /**
4070     * Convenience for calling {@link #setComponent} with an
4071     * explicit application package name and class name.
4072     *
4073     * @param packageName The name of the package implementing the desired
4074     * component.
4075     * @param className The name of a class inside of the application package
4076     * that will be used as the component for this Intent.
4077     *
4078     * @return Returns the same Intent object, for chaining multiple calls
4079     * into a single statement.
4080     *
4081     * @see #setComponent
4082     * @see #setClass
4083     */
4084    public Intent setClassName(String packageName, String className) {
4085        mComponent = new ComponentName(packageName, className);
4086        return this;
4087    }
4088
4089    /**
4090     * Convenience for calling {@link #setComponent(ComponentName)} with the
4091     * name returned by a {@link Class} object.
4092     *
4093     * @param packageContext A Context of the application package implementing
4094     * this class.
4095     * @param cls The class name to set, equivalent to
4096     *            <code>setClassName(context, cls.getName())</code>.
4097     *
4098     * @return Returns the same Intent object, for chaining multiple calls
4099     * into a single statement.
4100     *
4101     * @see #setComponent
4102     */
4103    public Intent setClass(Context packageContext, Class<?> cls) {
4104        mComponent = new ComponentName(packageContext, cls);
4105        return this;
4106    }
4107
4108    /**
4109     * Use with {@link #fillIn} to allow the current action value to be
4110     * overwritten, even if it is already set.
4111     */
4112    public static final int FILL_IN_ACTION = 1<<0;
4113
4114    /**
4115     * Use with {@link #fillIn} to allow the current data or type value
4116     * overwritten, even if it is already set.
4117     */
4118    public static final int FILL_IN_DATA = 1<<1;
4119
4120    /**
4121     * Use with {@link #fillIn} to allow the current categories to be
4122     * overwritten, even if they are already set.
4123     */
4124    public static final int FILL_IN_CATEGORIES = 1<<2;
4125
4126    /**
4127     * Use with {@link #fillIn} to allow the current component value to be
4128     * overwritten, even if it is already set.
4129     */
4130    public static final int FILL_IN_COMPONENT = 1<<3;
4131
4132    /**
4133     * Copy the contents of <var>other</var> in to this object, but only
4134     * where fields are not defined by this object.  For purposes of a field
4135     * being defined, the following pieces of data in the Intent are
4136     * considered to be separate fields:
4137     *
4138     * <ul>
4139     * <li> action, as set by {@link #setAction}.
4140     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4141     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4142     * <li> categories, as set by {@link #addCategory}.
4143     * <li> component, as set by {@link #setComponent(ComponentName)} or
4144     * related methods.
4145     * <li> each top-level name in the associated extras.
4146     * </ul>
4147     *
4148     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4149     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, and
4150     * {@link #FILL_IN_COMPONENT} to override the restriction where the
4151     * corresponding field will not be replaced if it is already set.
4152     *
4153     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4154     * and Intent B with {action="gotit", data-type="some/thing",
4155     * categories="one","two"}.
4156     *
4157     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4158     * containing: {action="gotit", data-type="some/thing",
4159     * categories="bar"}.
4160     *
4161     * @param other Another Intent whose values are to be used to fill in
4162     * the current one.
4163     * @param flags Options to control which fields can be filled in.
4164     *
4165     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4166     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, and
4167     * {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4168     */
4169    public int fillIn(Intent other, int flags) {
4170        int changes = 0;
4171        if ((mAction == null && other.mAction == null)
4172                || (flags&FILL_IN_ACTION) != 0) {
4173            mAction = other.mAction;
4174            changes |= FILL_IN_ACTION;
4175        }
4176        if ((mData == null && mType == null &&
4177                (other.mData != null || other.mType != null))
4178                || (flags&FILL_IN_DATA) != 0) {
4179            mData = other.mData;
4180            mType = other.mType;
4181            changes |= FILL_IN_DATA;
4182        }
4183        if ((mCategories == null && other.mCategories == null)
4184                || (flags&FILL_IN_CATEGORIES) != 0) {
4185            if (other.mCategories != null) {
4186                mCategories = new HashSet<String>(other.mCategories);
4187            }
4188            changes |= FILL_IN_CATEGORIES;
4189        }
4190        if ((mComponent == null && other.mComponent == null)
4191                || (flags&FILL_IN_COMPONENT) != 0) {
4192            mComponent = other.mComponent;
4193            changes |= FILL_IN_COMPONENT;
4194        }
4195        mFlags |= other.mFlags;
4196        if (mExtras == null) {
4197            if (other.mExtras != null) {
4198                mExtras = new Bundle(other.mExtras);
4199            }
4200        } else if (other.mExtras != null) {
4201            try {
4202                Bundle newb = new Bundle(other.mExtras);
4203                newb.putAll(mExtras);
4204                mExtras = newb;
4205            } catch (RuntimeException e) {
4206                // Modifying the extras can cause us to unparcel the contents
4207                // of the bundle, and if we do this in the system process that
4208                // may fail.  We really should handle this (i.e., the Bundle
4209                // impl shouldn't be on top of a plain map), but for now just
4210                // ignore it and keep the original contents. :(
4211                Log.w("Intent", "Failure filling in extras", e);
4212            }
4213        }
4214        return changes;
4215    }
4216
4217    /**
4218     * Wrapper class holding an Intent and implementing comparisons on it for
4219     * the purpose of filtering.  The class implements its
4220     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4221     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4222     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4223     * on the wrapped Intent.
4224     */
4225    public static final class FilterComparison {
4226        private final Intent mIntent;
4227        private final int mHashCode;
4228
4229        public FilterComparison(Intent intent) {
4230            mIntent = intent;
4231            mHashCode = intent.filterHashCode();
4232        }
4233
4234        /**
4235         * Return the Intent that this FilterComparison represents.
4236         * @return Returns the Intent held by the FilterComparison.  Do
4237         * not modify!
4238         */
4239        public Intent getIntent() {
4240            return mIntent;
4241        }
4242
4243        @Override
4244        public boolean equals(Object obj) {
4245            if (obj instanceof FilterComparison) {
4246                Intent other = ((FilterComparison)obj).mIntent;
4247                return mIntent.filterEquals(other);
4248            }
4249            return false;
4250        }
4251
4252        @Override
4253        public int hashCode() {
4254            return mHashCode;
4255        }
4256    }
4257
4258    /**
4259     * Determine if two intents are the same for the purposes of intent
4260     * resolution (filtering). That is, if their action, data, type,
4261     * class, and categories are the same.  This does <em>not</em> compare
4262     * any extra data included in the intents.
4263     *
4264     * @param other The other Intent to compare against.
4265     *
4266     * @return Returns true if action, data, type, class, and categories
4267     *         are the same.
4268     */
4269    public boolean filterEquals(Intent other) {
4270        if (other == null) {
4271            return false;
4272        }
4273        if (mAction != other.mAction) {
4274            if (mAction != null) {
4275                if (!mAction.equals(other.mAction)) {
4276                    return false;
4277                }
4278            } else {
4279                if (!other.mAction.equals(mAction)) {
4280                    return false;
4281                }
4282            }
4283        }
4284        if (mData != other.mData) {
4285            if (mData != null) {
4286                if (!mData.equals(other.mData)) {
4287                    return false;
4288                }
4289            } else {
4290                if (!other.mData.equals(mData)) {
4291                    return false;
4292                }
4293            }
4294        }
4295        if (mType != other.mType) {
4296            if (mType != null) {
4297                if (!mType.equals(other.mType)) {
4298                    return false;
4299                }
4300            } else {
4301                if (!other.mType.equals(mType)) {
4302                    return false;
4303                }
4304            }
4305        }
4306        if (mComponent != other.mComponent) {
4307            if (mComponent != null) {
4308                if (!mComponent.equals(other.mComponent)) {
4309                    return false;
4310                }
4311            } else {
4312                if (!other.mComponent.equals(mComponent)) {
4313                    return false;
4314                }
4315            }
4316        }
4317        if (mCategories != other.mCategories) {
4318            if (mCategories != null) {
4319                if (!mCategories.equals(other.mCategories)) {
4320                    return false;
4321                }
4322            } else {
4323                if (!other.mCategories.equals(mCategories)) {
4324                    return false;
4325                }
4326            }
4327        }
4328
4329        return true;
4330    }
4331
4332    /**
4333     * Generate hash code that matches semantics of filterEquals().
4334     *
4335     * @return Returns the hash value of the action, data, type, class, and
4336     *         categories.
4337     *
4338     * @see #filterEquals
4339     */
4340    public int filterHashCode() {
4341        int code = 0;
4342        if (mAction != null) {
4343            code += mAction.hashCode();
4344        }
4345        if (mData != null) {
4346            code += mData.hashCode();
4347        }
4348        if (mType != null) {
4349            code += mType.hashCode();
4350        }
4351        if (mComponent != null) {
4352            code += mComponent.hashCode();
4353        }
4354        if (mCategories != null) {
4355            code += mCategories.hashCode();
4356        }
4357        return code;
4358    }
4359
4360    @Override
4361    public String toString() {
4362        StringBuilder   b = new StringBuilder();
4363
4364        b.append("Intent {");
4365        if (mAction != null) b.append(" action=").append(mAction);
4366        if (mCategories != null) {
4367            b.append(" categories={");
4368            Iterator<String> i = mCategories.iterator();
4369            boolean didone = false;
4370            while (i.hasNext()) {
4371                if (didone) b.append(",");
4372                didone = true;
4373                b.append(i.next());
4374            }
4375            b.append("}");
4376        }
4377        if (mData != null) b.append(" data=").append(mData);
4378        if (mType != null) b.append(" type=").append(mType);
4379        if (mFlags != 0) b.append(" flags=0x").append(Integer.toHexString(mFlags));
4380        if (mComponent != null) b.append(" comp=").append(mComponent.toShortString());
4381        if (mExtras != null) b.append(" (has extras)");
4382        b.append(" }");
4383
4384        return b.toString();
4385    }
4386
4387    public String toURI() {
4388        StringBuilder uri = new StringBuilder(mData != null ? mData.toString() : "");
4389
4390        uri.append("#Intent;");
4391
4392        if (mAction != null) {
4393            uri.append("action=").append(mAction).append(';');
4394        }
4395        if (mCategories != null) {
4396            for (String category : mCategories) {
4397                uri.append("category=").append(category).append(';');
4398            }
4399        }
4400        if (mType != null) {
4401            uri.append("type=").append(mType).append(';');
4402        }
4403        if (mFlags != 0) {
4404            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
4405        }
4406        if (mComponent != null) {
4407            uri.append("component=").append(mComponent.flattenToShortString()).append(';');
4408        }
4409        if (mExtras != null) {
4410            for (String key : mExtras.keySet()) {
4411                final Object value = mExtras.get(key);
4412                char entryType =
4413                        value instanceof String    ? 'S' :
4414                        value instanceof Boolean   ? 'B' :
4415                        value instanceof Byte      ? 'b' :
4416                        value instanceof Character ? 'c' :
4417                        value instanceof Double    ? 'd' :
4418                        value instanceof Float     ? 'f' :
4419                        value instanceof Integer   ? 'i' :
4420                        value instanceof Long      ? 'l' :
4421                        value instanceof Short     ? 's' :
4422                        '\0';
4423
4424                if (entryType != '\0') {
4425                    uri.append(entryType);
4426                    uri.append('.');
4427                    uri.append(Uri.encode(key));
4428                    uri.append('=');
4429                    uri.append(Uri.encode(value.toString()));
4430                    uri.append(';');
4431                }
4432            }
4433        }
4434
4435        uri.append("end");
4436
4437        return uri.toString();
4438    }
4439
4440    public int describeContents() {
4441        return (mExtras != null) ? mExtras.describeContents() : 0;
4442    }
4443
4444    public void writeToParcel(Parcel out, int flags) {
4445        out.writeString(mAction);
4446        Uri.writeToParcel(out, mData);
4447        out.writeString(mType);
4448        out.writeInt(mFlags);
4449        ComponentName.writeToParcel(mComponent, out);
4450
4451        if (mCategories != null) {
4452            out.writeInt(mCategories.size());
4453            for (String category : mCategories) {
4454                out.writeString(category);
4455            }
4456        } else {
4457            out.writeInt(0);
4458        }
4459
4460        out.writeBundle(mExtras);
4461    }
4462
4463    public static final Parcelable.Creator<Intent> CREATOR
4464            = new Parcelable.Creator<Intent>() {
4465        public Intent createFromParcel(Parcel in) {
4466            return new Intent(in);
4467        }
4468        public Intent[] newArray(int size) {
4469            return new Intent[size];
4470        }
4471    };
4472
4473    private Intent(Parcel in) {
4474        readFromParcel(in);
4475    }
4476
4477    public void readFromParcel(Parcel in) {
4478        mAction = in.readString();
4479        mData = Uri.CREATOR.createFromParcel(in);
4480        mType = in.readString();
4481        mFlags = in.readInt();
4482        mComponent = ComponentName.readFromParcel(in);
4483
4484        int N = in.readInt();
4485        if (N > 0) {
4486            mCategories = new HashSet<String>();
4487            int i;
4488            for (i=0; i<N; i++) {
4489                mCategories.add(in.readString());
4490            }
4491        } else {
4492            mCategories = null;
4493        }
4494
4495        mExtras = in.readBundle();
4496    }
4497
4498    /**
4499     * Parses the "intent" element (and its children) from XML and instantiates
4500     * an Intent object.  The given XML parser should be located at the tag
4501     * where parsing should start (often named "intent"), from which the
4502     * basic action, data, type, and package and class name will be
4503     * retrieved.  The function will then parse in to any child elements,
4504     * looking for <category android:name="xxx"> tags to add categories and
4505     * <extra android:name="xxx" android:value="yyy"> to attach extra data
4506     * to the intent.
4507     *
4508     * @param resources The Resources to use when inflating resources.
4509     * @param parser The XML parser pointing at an "intent" tag.
4510     * @param attrs The AttributeSet interface for retrieving extended
4511     * attribute data at the current <var>parser</var> location.
4512     * @return An Intent object matching the XML data.
4513     * @throws XmlPullParserException If there was an XML parsing error.
4514     * @throws IOException If there was an I/O error.
4515     */
4516    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
4517            throws XmlPullParserException, IOException {
4518        Intent intent = new Intent();
4519
4520        TypedArray sa = resources.obtainAttributes(attrs,
4521                com.android.internal.R.styleable.Intent);
4522
4523        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
4524
4525        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
4526        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
4527        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
4528
4529        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
4530        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
4531        if (packageName != null && className != null) {
4532            intent.setComponent(new ComponentName(packageName, className));
4533        }
4534
4535        sa.recycle();
4536
4537        int outerDepth = parser.getDepth();
4538        int type;
4539        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
4540               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
4541            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
4542                continue;
4543            }
4544
4545            String nodeName = parser.getName();
4546            if (nodeName.equals("category")) {
4547                sa = resources.obtainAttributes(attrs,
4548                        com.android.internal.R.styleable.IntentCategory);
4549                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
4550                sa.recycle();
4551
4552                if (cat != null) {
4553                    intent.addCategory(cat);
4554                }
4555                XmlUtils.skipCurrentTag(parser);
4556
4557            } else if (nodeName.equals("extra")) {
4558                if (intent.mExtras == null) {
4559                    intent.mExtras = new Bundle();
4560                }
4561                resources.parseBundleExtra("extra", attrs, intent.mExtras);
4562                XmlUtils.skipCurrentTag(parser);
4563
4564            } else {
4565                XmlUtils.skipCurrentTag(parser);
4566            }
4567        }
4568
4569        return intent;
4570    }
4571}
4572