Intent.java revision 32f589046b4105f1a1b7cc2231d334e3971549e6
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.content;
18
19import org.xmlpull.v1.XmlPullParser;
20import org.xmlpull.v1.XmlPullParserException;
21
22import android.annotation.SdkConstant;
23import android.annotation.SdkConstant.SdkConstantType;
24import android.content.pm.ActivityInfo;
25import android.content.pm.PackageManager;
26import android.content.pm.ResolveInfo;
27import android.content.res.Resources;
28import android.content.res.TypedArray;
29import android.net.Uri;
30import android.os.Bundle;
31import android.os.IBinder;
32import android.os.Parcel;
33import android.os.Parcelable;
34import android.util.AttributeSet;
35import android.util.Log;
36import com.android.internal.util.XmlUtils;
37
38import java.io.IOException;
39import java.io.Serializable;
40import java.net.URISyntaxException;
41import java.util.ArrayList;
42import java.util.HashSet;
43import java.util.Iterator;
44import java.util.Set;
45
46/**
47 * An intent is an abstract description of an operation to be performed.  It
48 * can be used with {@link Context#startActivity(Intent) startActivity} to
49 * launch an {@link android.app.Activity},
50 * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
51 * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
52 * and {@link android.content.Context#startService} or
53 * {@link android.content.Context#bindService} to communicate with a
54 * background {@link android.app.Service}.
55 *
56 * <p>An Intent provides a facility for performing late runtime binding between
57 * the code in different applications.  Its most significant use is in the
58 * launching of activities, where it can be thought of as the glue between
59 * activities. It is
60 * basically a passive data structure holding an abstract description of an
61 * action to be performed. The primary pieces of information in an intent
62 * are:</p>
63 *
64 * <ul>
65 *   <li> <p><b>action</b> -- The general action to be performed, such as
66 *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
67 *     etc.</p>
68 *   </li>
69 *   <li> <p><b>data</b> -- The data to operate on, such as a person record
70 *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
71 *   </li>
72 * </ul>
73 *
74 *
75 * <p>Some examples of action/data pairs are:</p>
76 *
77 * <ul>
78 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
79 *     information about the person whose identifier is "1".</p>
80 *   </li>
81 *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
82 *     the phone dialer with the person filled in.</p>
83 *   </li>
84 *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
85 *     the phone dialer with the given number filled in.  Note how the
86 *     VIEW action does what what is considered the most reasonable thing for
87 *     a particular URI.</p>
88 *   </li>
89 *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
90 *     the phone dialer with the given number filled in.</p>
91 *   </li>
92 *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
93 *     information about the person whose identifier is "1".</p>
94 *   </li>
95 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
96 *     a list of people, which the user can browse through.  This example is a
97 *     typical top-level entry into the Contacts application, showing you the
98 *     list of people. Selecting a particular person to view would result in a
99 *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
100 *     being used to start an activity to display that person.</p>
101 *   </li>
102 * </ul>
103 *
104 * <p>In addition to these primary attributes, there are a number of secondary
105 * attributes that you can also include with an intent:</p>
106 *
107 * <ul>
108 *     <li> <p><b>category</b> -- Gives additional information about the action
109 *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
110 *         appear in the Launcher as a top-level application, while
111 *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
112 *         of alternative actions the user can perform on a piece of data.</p>
113 *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
114 *         intent data.  Normally the type is inferred from the data itself.
115 *         By setting this attribute, you disable that evaluation and force
116 *         an explicit type.</p>
117 *     <li> <p><b>component</b> -- Specifies an explicit name of a component
118 *         class to use for the intent.  Normally this is determined by looking
119 *         at the other information in the intent (the action, data/type, and
120 *         categories) and matching that with a component that can handle it.
121 *         If this attribute is set then none of the evaluation is performed,
122 *         and this component is used exactly as is.  By specifying this attribute,
123 *         all of the other Intent attributes become optional.</p>
124 *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
125 *         This can be used to provide extended information to the component.
126 *         For example, if we have a action to send an e-mail message, we could
127 *         also include extra pieces of data here to supply a subject, body,
128 *         etc.</p>
129 * </ul>
130 *
131 * <p>Here are some examples of other operations you can specify as intents
132 * using these additional parameters:</p>
133 *
134 * <ul>
135 *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
136 *     Launch the home screen.</p>
137 *   </li>
138 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
139 *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
140 *     vnd.android.cursor.item/phone}</i></b>
141 *     -- Display the list of people's phone numbers, allowing the user to
142 *     browse through them and pick one and return it to the parent activity.</p>
143 *   </li>
144 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
145 *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
146 *     -- Display all pickers for data that can be opened with
147 *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
148 *     allowing the user to pick one of them and then some data inside of it
149 *     and returning the resulting URI to the caller.  This can be used,
150 *     for example, in an e-mail application to allow the user to pick some
151 *     data to include as an attachment.</p>
152 *   </li>
153 * </ul>
154 *
155 * <p>There are a variety of standard Intent action and category constants
156 * defined in the Intent class, but applications can also define their own.
157 * These strings use java style scoping, to ensure they are unique -- for
158 * example, the standard {@link #ACTION_VIEW} is called
159 * "android.intent.action.VIEW".</p>
160 *
161 * <p>Put together, the set of actions, data types, categories, and extra data
162 * defines a language for the system allowing for the expression of phrases
163 * such as "call john smith's cell".  As applications are added to the system,
164 * they can extend this language by adding new actions, types, and categories, or
165 * they can modify the behavior of existing phrases by supplying their own
166 * activities that handle them.</p>
167 *
168 * <a name="IntentResolution"></a>
169 * <h3>Intent Resolution</h3>
170 *
171 * <p>There are two primary forms of intents you will use.
172 *
173 * <ul>
174 *     <li> <p><b>Explicit Intents</b> have specified a component (via
175 *     {@link #setComponent} or {@link #setClass}), which provides the exact
176 *     class to be run.  Often these will not include any other information,
177 *     simply being a way for an application to launch various internal
178 *     activities it has as the user interacts with the application.
179 *
180 *     <li> <p><b>Implicit Intents</b> have not specified a component;
181 *     instead, they must include enough information for the system to
182 *     determine which of the available components is best to run for that
183 *     intent.
184 * </ul>
185 *
186 * <p>When using implicit intents, given such an arbitrary intent we need to
187 * know what to do with it. This is handled by the process of <em>Intent
188 * resolution</em>, which maps an Intent to an {@link android.app.Activity},
189 * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
190 * more activities/receivers) that can handle it.</p>
191 *
192 * <p>The intent resolution mechanism basically revolves around matching an
193 * Intent against all of the &lt;intent-filter&gt; descriptions in the
194 * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
195 * objects explicitly registered with {@link Context#registerReceiver}.)  More
196 * details on this can be found in the documentation on the {@link
197 * IntentFilter} class.</p>
198 *
199 * <p>There are three pieces of information in the Intent that are used for
200 * resolution: the action, type, and category.  Using this information, a query
201 * is done on the {@link PackageManager} for a component that can handle the
202 * intent. The appropriate component is determined based on the intent
203 * information supplied in the <code>AndroidManifest.xml</code> file as
204 * follows:</p>
205 *
206 * <ul>
207 *     <li> <p>The <b>action</b>, if given, must be listed by the component as
208 *         one it handles.</p>
209 *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
210 *         already supplied in the Intent.  Like the action, if a type is
211 *         included in the intent (either explicitly or implicitly in its
212 *         data), then this must be listed by the component as one it handles.</p>
213 *     <li> For data that is not a <code>content:</code> URI and where no explicit
214 *         type is included in the Intent, instead the <b>scheme</b> of the
215 *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
216 *         considered. Again like the action, if we are matching a scheme it
217 *         must be listed by the component as one it can handle.
218 *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
219 *         by the activity as categories it handles.  That is, if you include
220 *         the categories {@link #CATEGORY_LAUNCHER} and
221 *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
222 *         with an intent that lists <em>both</em> of those categories.
223 *         Activities will very often need to support the
224 *         {@link #CATEGORY_DEFAULT} so that they can be found by
225 *         {@link Context#startActivity Context.startActivity()}.</p>
226 * </ul>
227 *
228 * <p>For example, consider the Note Pad sample application that
229 * allows user to browse through a list of notes data and view details about
230 * individual items.  Text in italics indicate places were you would replace a
231 * name with one specific to your own package.</p>
232 *
233 * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
234 *       package="<i>com.android.notepad</i>"&gt;
235 *     &lt;application android:icon="@drawable/app_notes"
236 *             android:label="@string/app_name"&gt;
237 *
238 *         &lt;provider class=".NotePadProvider"
239 *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
240 *
241 *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
242 *             &lt;intent-filter&gt;
243 *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
244 *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
245 *             &lt;/intent-filter&gt;
246 *             &lt;intent-filter&gt;
247 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
248 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
249 *                 &lt;action android:name="android.intent.action.PICK" /&gt;
250 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
251 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
252 *             &lt;/intent-filter&gt;
253 *             &lt;intent-filter&gt;
254 *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
255 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
256 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
257 *             &lt;/intent-filter&gt;
258 *         &lt;/activity&gt;
259 *
260 *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
261 *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
262 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
263 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
264 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
265 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
266 *             &lt;/intent-filter&gt;
267 *
268 *             &lt;intent-filter&gt;
269 *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
270 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
271 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
272 *             &lt;/intent-filter&gt;
273 *
274 *         &lt;/activity&gt;
275 *
276 *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
277 *                 android:theme="@android:style/Theme.Dialog"&gt;
278 *             &lt;intent-filter android:label="@string/resolve_title"&gt;
279 *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
280 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
281 *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
282 *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
283 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
284 *             &lt;/intent-filter&gt;
285 *         &lt;/activity&gt;
286 *
287 *     &lt;/application&gt;
288 * &lt;/manifest&gt;</pre>
289 *
290 * <p>The first activity,
291 * <code>com.android.notepad.NotesList</code>, serves as our main
292 * entry into the app.  It can do three things as described by its three intent
293 * templates:
294 * <ol>
295 * <li><pre>
296 * &lt;intent-filter&gt;
297 *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
298 *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
299 * &lt;/intent-filter&gt;</pre>
300 * <p>This provides a top-level entry into the NotePad application: the standard
301 * MAIN action is a main entry point (not requiring any other information in
302 * the Intent), and the LAUNCHER category says that this entry point should be
303 * listed in the application launcher.</p>
304 * <li><pre>
305 * &lt;intent-filter&gt;
306 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
307 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
308 *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
309 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
310 *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
311 * &lt;/intent-filter&gt;</pre>
312 * <p>This declares the things that the activity can do on a directory of
313 * notes.  The type being supported is given with the &lt;type&gt; tag, where
314 * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
315 * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
316 * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
317 * The activity allows the user to view or edit the directory of data (via
318 * the VIEW and EDIT actions), or to pick a particular note and return it
319 * to the caller (via the PICK action).  Note also the DEFAULT category
320 * supplied here: this is <em>required</em> for the
321 * {@link Context#startActivity Context.startActivity} method to resolve your
322 * activity when its component name is not explicitly specified.</p>
323 * <li><pre>
324 * &lt;intent-filter&gt;
325 *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
326 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
327 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
328 * &lt;/intent-filter&gt;</pre>
329 * <p>This filter describes the ability return to the caller a note selected by
330 * the user without needing to know where it came from.  The data type
331 * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
332 * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
333 * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
334 * The GET_CONTENT action is similar to the PICK action, where the activity
335 * will return to its caller a piece of data selected by the user.  Here,
336 * however, the caller specifies the type of data they desire instead of
337 * the type of data the user will be picking from.</p>
338 * </ol>
339 *
340 * <p>Given these capabilities, the following intents will resolve to the
341 * NotesList activity:</p>
342 *
343 * <ul>
344 *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
345 *         activities that can be used as top-level entry points into an
346 *         application.</p>
347 *     <li> <p><b>{ action=android.app.action.MAIN,
348 *         category=android.app.category.LAUNCHER }</b> is the actual intent
349 *         used by the Launcher to populate its top-level list.</p>
350 *     <li> <p><b>{ action=android.intent.action.VIEW
351 *          data=content://com.google.provider.NotePad/notes }</b>
352 *         displays a list of all the notes under
353 *         "content://com.google.provider.NotePad/notes", which
354 *         the user can browse through and see the details on.</p>
355 *     <li> <p><b>{ action=android.app.action.PICK
356 *          data=content://com.google.provider.NotePad/notes }</b>
357 *         provides a list of the notes under
358 *         "content://com.google.provider.NotePad/notes", from which
359 *         the user can pick a note whose data URL is returned back to the caller.</p>
360 *     <li> <p><b>{ action=android.app.action.GET_CONTENT
361 *          type=vnd.android.cursor.item/vnd.google.note }</b>
362 *         is similar to the pick action, but allows the caller to specify the
363 *         kind of data they want back so that the system can find the appropriate
364 *         activity to pick something of that data type.</p>
365 * </ul>
366 *
367 * <p>The second activity,
368 * <code>com.android.notepad.NoteEditor</code>, shows the user a single
369 * note entry and allows them to edit it.  It can do two things as described
370 * by its two intent templates:
371 * <ol>
372 * <li><pre>
373 * &lt;intent-filter android:label="@string/resolve_edit"&gt;
374 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
375 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
376 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
377 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
378 * &lt;/intent-filter&gt;</pre>
379 * <p>The first, primary, purpose of this activity is to let the user interact
380 * with a single note, as decribed by the MIME type
381 * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
382 * either VIEW a note or allow the user to EDIT it.  Again we support the
383 * DEFAULT category to allow the activity to be launched without explicitly
384 * specifying its component.</p>
385 * <li><pre>
386 * &lt;intent-filter&gt;
387 *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
388 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
389 *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
390 * &lt;/intent-filter&gt;</pre>
391 * <p>The secondary use of this activity is to insert a new note entry into
392 * an existing directory of notes.  This is used when the user creates a new
393 * note: the INSERT action is executed on the directory of notes, causing
394 * this activity to run and have the user create the new note data which
395 * it then adds to the content provider.</p>
396 * </ol>
397 *
398 * <p>Given these capabilities, the following intents will resolve to the
399 * NoteEditor activity:</p>
400 *
401 * <ul>
402 *     <li> <p><b>{ action=android.intent.action.VIEW
403 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
404 *         shows the user the content of note <var>{ID}</var>.</p>
405 *     <li> <p><b>{ action=android.app.action.EDIT
406 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
407 *         allows the user to edit the content of note <var>{ID}</var>.</p>
408 *     <li> <p><b>{ action=android.app.action.INSERT
409 *          data=content://com.google.provider.NotePad/notes }</b>
410 *         creates a new, empty note in the notes list at
411 *         "content://com.google.provider.NotePad/notes"
412 *         and allows the user to edit it.  If they keep their changes, the URI
413 *         of the newly created note is returned to the caller.</p>
414 * </ul>
415 *
416 * <p>The last activity,
417 * <code>com.android.notepad.TitleEditor</code>, allows the user to
418 * edit the title of a note.  This could be implemented as a class that the
419 * application directly invokes (by explicitly setting its component in
420 * the Intent), but here we show a way you can publish alternative
421 * operations on existing data:</p>
422 *
423 * <pre>
424 * &lt;intent-filter android:label="@string/resolve_title"&gt;
425 *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
426 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
427 *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
428 *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
429 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
430 * &lt;/intent-filter&gt;</pre>
431 *
432 * <p>In the single intent template here, we
433 * have created our own private action called
434 * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
435 * edit the title of a note.  It must be invoked on a specific note
436 * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
437 * view and edit actions, but here displays and edits the title contained
438 * in the note data.
439 *
440 * <p>In addition to supporting the default category as usual, our title editor
441 * also supports two other standard categories: ALTERNATIVE and
442 * SELECTED_ALTERNATIVE.  Implementing
443 * these categories allows others to find the special action it provides
444 * without directly knowing about it, through the
445 * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
446 * more often to build dynamic menu items with
447 * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
448 * template here was also supply an explicit name for the template
449 * (via <code>android:label="@string/resolve_title"</code>) to better control
450 * what the user sees when presented with this activity as an alternative
451 * action to the data they are viewing.
452 *
453 * <p>Given these capabilities, the following intent will resolve to the
454 * TitleEditor activity:</p>
455 *
456 * <ul>
457 *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
458 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
459 *         displays and allows the user to edit the title associated
460 *         with note <var>{ID}</var>.</p>
461 * </ul>
462 *
463 * <h3>Standard Activity Actions</h3>
464 *
465 * <p>These are the current standard actions that Intent defines for launching
466 * activities (usually through {@link Context#startActivity}.  The most
467 * important, and by far most frequently used, are {@link #ACTION_MAIN} and
468 * {@link #ACTION_EDIT}.
469 *
470 * <ul>
471 *     <li> {@link #ACTION_MAIN}
472 *     <li> {@link #ACTION_VIEW}
473 *     <li> {@link #ACTION_ATTACH_DATA}
474 *     <li> {@link #ACTION_EDIT}
475 *     <li> {@link #ACTION_PICK}
476 *     <li> {@link #ACTION_CHOOSER}
477 *     <li> {@link #ACTION_GET_CONTENT}
478 *     <li> {@link #ACTION_DIAL}
479 *     <li> {@link #ACTION_CALL}
480 *     <li> {@link #ACTION_SEND}
481 *     <li> {@link #ACTION_SENDTO}
482 *     <li> {@link #ACTION_ANSWER}
483 *     <li> {@link #ACTION_INSERT}
484 *     <li> {@link #ACTION_DELETE}
485 *     <li> {@link #ACTION_RUN}
486 *     <li> {@link #ACTION_SYNC}
487 *     <li> {@link #ACTION_PICK_ACTIVITY}
488 *     <li> {@link #ACTION_SEARCH}
489 *     <li> {@link #ACTION_WEB_SEARCH}
490 *     <li> {@link #ACTION_FACTORY_TEST}
491 * </ul>
492 *
493 * <h3>Standard Broadcast Actions</h3>
494 *
495 * <p>These are the current standard actions that Intent defines for receiving
496 * broadcasts (usually through {@link Context#registerReceiver} or a
497 * &lt;receiver&gt; tag in a manifest).
498 *
499 * <ul>
500 *     <li> {@link #ACTION_TIME_TICK}
501 *     <li> {@link #ACTION_TIME_CHANGED}
502 *     <li> {@link #ACTION_TIMEZONE_CHANGED}
503 *     <li> {@link #ACTION_BOOT_COMPLETED}
504 *     <li> {@link #ACTION_PACKAGE_ADDED}
505 *     <li> {@link #ACTION_PACKAGE_CHANGED}
506 *     <li> {@link #ACTION_PACKAGE_REMOVED}
507 *     <li> {@link #ACTION_PACKAGE_RESTARTED}
508 *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
509 *     <li> {@link #ACTION_UID_REMOVED}
510 *     <li> {@link #ACTION_BATTERY_CHANGED}
511 *     <li> {@link #ACTION_POWER_CONNECTED}
512 *     <li> {@link #ACTION_POWER_DISCONNECTED}
513 *     <li> {@link #ACTION_SHUTDOWN}
514 * </ul>
515 *
516 * <h3>Standard Categories</h3>
517 *
518 * <p>These are the current standard categories that can be used to further
519 * clarify an Intent via {@link #addCategory}.
520 *
521 * <ul>
522 *     <li> {@link #CATEGORY_DEFAULT}
523 *     <li> {@link #CATEGORY_BROWSABLE}
524 *     <li> {@link #CATEGORY_TAB}
525 *     <li> {@link #CATEGORY_ALTERNATIVE}
526 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
527 *     <li> {@link #CATEGORY_LAUNCHER}
528 *     <li> {@link #CATEGORY_INFO}
529 *     <li> {@link #CATEGORY_HOME}
530 *     <li> {@link #CATEGORY_PREFERENCE}
531 *     <li> {@link #CATEGORY_TEST}
532 * </ul>
533 *
534 * <h3>Standard Extra Data</h3>
535 *
536 * <p>These are the current standard fields that can be used as extra data via
537 * {@link #putExtra}.
538 *
539 * <ul>
540 *     <li> {@link #EXTRA_TEMPLATE}
541 *     <li> {@link #EXTRA_INTENT}
542 *     <li> {@link #EXTRA_STREAM}
543 *     <li> {@link #EXTRA_TEXT}
544 * </ul>
545 *
546 * <h3>Flags</h3>
547 *
548 * <p>These are the possible flags that can be used in the Intent via
549 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
550 * of all possible flags.
551 */
552public class Intent implements Parcelable {
553    // ---------------------------------------------------------------------
554    // ---------------------------------------------------------------------
555    // Standard intent activity actions (see action variable).
556
557    /**
558     *  Activity Action: Start as a main entry point, does not expect to
559     *  receive data.
560     *  <p>Input: nothing
561     *  <p>Output: nothing
562     */
563    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
564    public static final String ACTION_MAIN = "android.intent.action.MAIN";
565
566    /**
567     * Activity Action: Display the data to the user.  This is the most common
568     * action performed on data -- it is the generic action you can use on
569     * a piece of data to get the most reasonable thing to occur.  For example,
570     * when used on a contacts entry it will view the entry; when used on a
571     * mailto: URI it will bring up a compose window filled with the information
572     * supplied by the URI; when used with a tel: URI it will invoke the
573     * dialer.
574     * <p>Input: {@link #getData} is URI from which to retrieve data.
575     * <p>Output: nothing.
576     */
577    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
578    public static final String ACTION_VIEW = "android.intent.action.VIEW";
579
580    /**
581     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
582     * performed on a piece of data.
583     */
584    public static final String ACTION_DEFAULT = ACTION_VIEW;
585
586    /**
587     * Used to indicate that some piece of data should be attached to some other
588     * place.  For example, image data could be attached to a contact.  It is up
589     * to the recipient to decide where the data should be attached; the intent
590     * does not specify the ultimate destination.
591     * <p>Input: {@link #getData} is URI of data to be attached.
592     * <p>Output: nothing.
593     */
594    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
595    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
596
597    /**
598     * Activity Action: Provide explicit editable access to the given data.
599     * <p>Input: {@link #getData} is URI of data to be edited.
600     * <p>Output: nothing.
601     */
602    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
603    public static final String ACTION_EDIT = "android.intent.action.EDIT";
604
605    /**
606     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
607     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
608     * The extras can contain type specific data to pass through to the editing/creating
609     * activity.
610     * <p>Output: The URI of the item that was picked.  This must be a content:
611     * URI so that any receiver can access it.
612     */
613    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
614    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
615
616    /**
617     * Activity Action: Pick an item from the data, returning what was selected.
618     * <p>Input: {@link #getData} is URI containing a directory of data
619     * (vnd.android.cursor.dir/*) from which to pick an item.
620     * <p>Output: The URI of the item that was picked.
621     */
622    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
623    public static final String ACTION_PICK = "android.intent.action.PICK";
624
625    /**
626     * Activity Action: Creates a shortcut.
627     * <p>Input: Nothing.</p>
628     * <p>Output: An Intent representing the shortcut. The intent must contain three
629     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
630     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
631     * (value: ShortcutIconResource).</p>
632     *
633     * @see #EXTRA_SHORTCUT_INTENT
634     * @see #EXTRA_SHORTCUT_NAME
635     * @see #EXTRA_SHORTCUT_ICON
636     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
637     * @see android.content.Intent.ShortcutIconResource
638     */
639    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
640    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
641
642    /**
643     * The name of the extra used to define the Intent of a shortcut.
644     *
645     * @see #ACTION_CREATE_SHORTCUT
646     */
647    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
648    /**
649     * The name of the extra used to define the name of a shortcut.
650     *
651     * @see #ACTION_CREATE_SHORTCUT
652     */
653    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
654    /**
655     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
656     *
657     * @see #ACTION_CREATE_SHORTCUT
658     */
659    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
660    /**
661     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
662     *
663     * @see #ACTION_CREATE_SHORTCUT
664     * @see android.content.Intent.ShortcutIconResource
665     */
666    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
667            "android.intent.extra.shortcut.ICON_RESOURCE";
668
669    /**
670     * Represents a shortcut/live folder icon resource.
671     *
672     * @see Intent#ACTION_CREATE_SHORTCUT
673     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
674     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
675     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
676     */
677    public static class ShortcutIconResource implements Parcelable {
678        /**
679         * The package name of the application containing the icon.
680         */
681        public String packageName;
682
683        /**
684         * The resource name of the icon, including package, name and type.
685         */
686        public String resourceName;
687
688        /**
689         * Creates a new ShortcutIconResource for the specified context and resource
690         * identifier.
691         *
692         * @param context The context of the application.
693         * @param resourceId The resource idenfitier for the icon.
694         * @return A new ShortcutIconResource with the specified's context package name
695         *         and icon resource idenfitier.
696         */
697        public static ShortcutIconResource fromContext(Context context, int resourceId) {
698            ShortcutIconResource icon = new ShortcutIconResource();
699            icon.packageName = context.getPackageName();
700            icon.resourceName = context.getResources().getResourceName(resourceId);
701            return icon;
702        }
703
704        /**
705         * Used to read a ShortcutIconResource from a Parcel.
706         */
707        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
708            new Parcelable.Creator<ShortcutIconResource>() {
709
710                public ShortcutIconResource createFromParcel(Parcel source) {
711                    ShortcutIconResource icon = new ShortcutIconResource();
712                    icon.packageName = source.readString();
713                    icon.resourceName = source.readString();
714                    return icon;
715                }
716
717                public ShortcutIconResource[] newArray(int size) {
718                    return new ShortcutIconResource[size];
719                }
720            };
721
722        /**
723         * No special parcel contents.
724         */
725        public int describeContents() {
726            return 0;
727        }
728
729        public void writeToParcel(Parcel dest, int flags) {
730            dest.writeString(packageName);
731            dest.writeString(resourceName);
732        }
733
734        @Override
735        public String toString() {
736            return resourceName;
737        }
738    }
739
740    /**
741     * Activity Action: Display an activity chooser, allowing the user to pick
742     * what they want to before proceeding.  This can be used as an alternative
743     * to the standard activity picker that is displayed by the system when
744     * you try to start an activity with multiple possible matches, with these
745     * differences in behavior:
746     * <ul>
747     * <li>You can specify the title that will appear in the activity chooser.
748     * <li>The user does not have the option to make one of the matching
749     * activities a preferred activity, and all possible activities will
750     * always be shown even if one of them is currently marked as the
751     * preferred activity.
752     * </ul>
753     * <p>
754     * This action should be used when the user will naturally expect to
755     * select an activity in order to proceed.  An example if when not to use
756     * it is when the user clicks on a "mailto:" link.  They would naturally
757     * expect to go directly to their mail app, so startActivity() should be
758     * called directly: it will
759     * either launch the current preferred app, or put up a dialog allowing the
760     * user to pick an app to use and optionally marking that as preferred.
761     * <p>
762     * In contrast, if the user is selecting a menu item to send a picture
763     * they are viewing to someone else, there are many different things they
764     * may want to do at this point: send it through e-mail, upload it to a
765     * web service, etc.  In this case the CHOOSER action should be used, to
766     * always present to the user a list of the things they can do, with a
767     * nice title given by the caller such as "Send this photo with:".
768     * <p>
769     * As a convenience, an Intent of this form can be created with the
770     * {@link #createChooser} function.
771     * <p>Input: No data should be specified.  get*Extra must have
772     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
773     * and can optionally have a {@link #EXTRA_TITLE} field containing the
774     * title text to display in the chooser.
775     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
776     */
777    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
778    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
779
780    /**
781     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
782     *
783     * @param target The Intent that the user will be selecting an activity
784     * to perform.
785     * @param title Optional title that will be displayed in the chooser.
786     * @return Return a new Intent object that you can hand to
787     * {@link Context#startActivity(Intent) Context.startActivity()} and
788     * related methods.
789     */
790    public static Intent createChooser(Intent target, CharSequence title) {
791        Intent intent = new Intent(ACTION_CHOOSER);
792        intent.putExtra(EXTRA_INTENT, target);
793        if (title != null) {
794            intent.putExtra(EXTRA_TITLE, title);
795        }
796        return intent;
797    }
798    /**
799     * Activity Action: Allow the user to select a particular kind of data and
800     * return it.  This is different than {@link #ACTION_PICK} in that here we
801     * just say what kind of data is desired, not a URI of existing data from
802     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
803     * create the data as it runs (for example taking a picture or recording a
804     * sound), let them browser over the web and download the desired data,
805     * etc.
806     * <p>
807     * There are two main ways to use this action: if you want an specific kind
808     * of data, such as a person contact, you set the MIME type to the kind of
809     * data you want and launch it with {@link Context#startActivity(Intent)}.
810     * The system will then launch the best application to select that kind
811     * of data for you.
812     * <p>
813     * You may also be interested in any of a set of types of content the user
814     * can pick.  For example, an e-mail application that wants to allow the
815     * user to add an attachment to an e-mail message can use this action to
816     * bring up a list of all of the types of content the user can attach.
817     * <p>
818     * In this case, you should wrap the GET_CONTENT intent with a chooser
819     * (through {@link #createChooser}), which will give the proper interface
820     * for the user to pick how to send your data and allow you to specify
821     * a prompt indicating what they are doing.  You will usually specify a
822     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
823     * broad range of content types the user can select from.
824     * <p>
825     * When using such a broad GET_CONTENT action, it is often desireable to
826     * only pick from data that can be represented as a stream.  This is
827     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
828     * <p>
829     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
830     * that no URI is supplied in the intent, as there are no constraints on
831     * where the returned data originally comes from.  You may also include the
832     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
833     * opened as a stream.
834     * <p>
835     * Output: The URI of the item that was picked.  This must be a content:
836     * URI so that any receiver can access it.
837     */
838    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
839    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
840    /**
841     * Activity Action: Dial a number as specified by the data.  This shows a
842     * UI with the number being dialed, allowing the user to explicitly
843     * initiate the call.
844     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
845     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
846     * number.
847     * <p>Output: nothing.
848     */
849    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
850    public static final String ACTION_DIAL = "android.intent.action.DIAL";
851    /**
852     * Activity Action: Perform a call to someone specified by the data.
853     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
854     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
855     * number.
856     * <p>Output: nothing.
857     *
858     * <p>Note: there will be restrictions on which applications can initiate a
859     * call; most applications should use the {@link #ACTION_DIAL}.
860     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
861     * numbers.  Applications can <strong>dial</strong> emergency numbers using
862     * {@link #ACTION_DIAL}, however.
863     */
864    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
865    public static final String ACTION_CALL = "android.intent.action.CALL";
866    /**
867     * Activity Action: Perform a call to an emergency number specified by the
868     * data.
869     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
870     * tel: URI of an explicit phone number.
871     * <p>Output: nothing.
872     * @hide
873     */
874    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
875    /**
876     * Activity action: Perform a call to any number (emergency or not)
877     * specified by the data.
878     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
879     * tel: URI of an explicit phone number.
880     * <p>Output: nothing.
881     * @hide
882     */
883    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
884    /**
885     * Activity Action: Send a message to someone specified by the data.
886     * <p>Input: {@link #getData} is URI describing the target.
887     * <p>Output: nothing.
888     */
889    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
890    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
891    /**
892     * Activity Action: Deliver some data to someone else.  Who the data is
893     * being delivered to is not specified; it is up to the receiver of this
894     * action to ask the user where the data should be sent.
895     * <p>
896     * When launching a SEND intent, you should usually wrap it in a chooser
897     * (through {@link #createChooser}), which will give the proper interface
898     * for the user to pick how to send your data and allow you to specify
899     * a prompt indicating what they are doing.
900     * <p>
901     * Input: {@link #getType} is the MIME type of the data being sent.
902     * get*Extra can have either a {@link #EXTRA_TEXT}
903     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
904     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
905     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
906     * if the MIME type is unknown (this will only allow senders that can
907     * handle generic data streams).
908     * <p>
909     * Optional standard extras, which may be interpreted by some recipients as
910     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
911     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
912     * <p>
913     * Output: nothing.
914     */
915    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
916    public static final String ACTION_SEND = "android.intent.action.SEND";
917    /**
918     * Activity Action: Deliver multiple data to someone else.
919     * <p>
920     * Like ACTION_SEND, except the data is multiple.
921     * <p>
922     * Input: {@link #getType} is the MIME type of the data being sent.
923     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
924     * #EXTRA_STREAM} field, containing the data to be sent.
925     * <p>
926     * Optional standard extras, which may be interpreted by some recipients as
927     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
928     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
929     * <p>
930     * Output: nothing.
931     */
932    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
933    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
934    /**
935     * Activity Action: Handle an incoming phone call.
936     * <p>Input: nothing.
937     * <p>Output: nothing.
938     */
939    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
940    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
941    /**
942     * Activity Action: Insert an empty item into the given container.
943     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
944     * in which to place the data.
945     * <p>Output: URI of the new data that was created.
946     */
947    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
948    public static final String ACTION_INSERT = "android.intent.action.INSERT";
949    /**
950     * Activity Action: Delete the given data from its container.
951     * <p>Input: {@link #getData} is URI of data to be deleted.
952     * <p>Output: nothing.
953     */
954    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
955    public static final String ACTION_DELETE = "android.intent.action.DELETE";
956    /**
957     * Activity Action: Run the data, whatever that means.
958     * <p>Input: ?  (Note: this is currently specific to the test harness.)
959     * <p>Output: nothing.
960     */
961    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
962    public static final String ACTION_RUN = "android.intent.action.RUN";
963    /**
964     * Activity Action: Perform a data synchronization.
965     * <p>Input: ?
966     * <p>Output: ?
967     */
968    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
969    public static final String ACTION_SYNC = "android.intent.action.SYNC";
970    /**
971     * Activity Action: Pick an activity given an intent, returning the class
972     * selected.
973     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
974     * used with {@link PackageManager#queryIntentActivities} to determine the
975     * set of activities from which to pick.
976     * <p>Output: Class name of the activity that was selected.
977     */
978    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
979    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
980    /**
981     * Activity Action: Perform a search.
982     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
983     * is the text to search for.  If empty, simply
984     * enter your search results Activity with the search UI activated.
985     * <p>Output: nothing.
986     */
987    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
988    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
989    /**
990     * Activity Action: Start the platform-defined tutorial
991     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
992     * is the text to search for.  If empty, simply
993     * enter your search results Activity with the search UI activated.
994     * <p>Output: nothing.
995     */
996    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
997    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
998    /**
999     * Activity Action: Perform a web search.
1000     * <p>
1001     * Input: {@link android.app.SearchManager#QUERY
1002     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1003     * a url starts with http or https, the site will be opened. If it is plain
1004     * text, Google search will be applied.
1005     * <p>
1006     * Output: nothing.
1007     */
1008    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1009    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1010    /**
1011     * Activity Action: List all available applications
1012     * <p>Input: Nothing.
1013     * <p>Output: nothing.
1014     */
1015    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1016    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1017    /**
1018     * Activity Action: Show settings for choosing wallpaper
1019     * <p>Input: Nothing.
1020     * <p>Output: Nothing.
1021     */
1022    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1023    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1024
1025    /**
1026     * Activity Action: Show activity for reporting a bug.
1027     * <p>Input: Nothing.
1028     * <p>Output: Nothing.
1029     */
1030    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1031    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1032
1033    /**
1034     *  Activity Action: Main entry point for factory tests.  Only used when
1035     *  the device is booting in factory test node.  The implementing package
1036     *  must be installed in the system image.
1037     *  <p>Input: nothing
1038     *  <p>Output: nothing
1039     */
1040    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1041
1042    /**
1043     * Activity Action: The user pressed the "call" button to go to the dialer
1044     * or other appropriate UI for placing a call.
1045     * <p>Input: Nothing.
1046     * <p>Output: Nothing.
1047     */
1048    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1049    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1050
1051    /**
1052     * Activity Action: Start Voice Command.
1053     * <p>Input: Nothing.
1054     * <p>Output: Nothing.
1055     */
1056    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1057    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1058
1059    /**
1060     * Activity Action: Start action associated with long pressing on the
1061     * search key.
1062     * <p>Input: Nothing.
1063     * <p>Output: Nothing.
1064     */
1065    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1066    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1067
1068    /**
1069     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1070     * This intent is delivered to the package which installed the application, usually
1071     * the Market.
1072     * <p>Input: No data is specified. The bug report is passed in using
1073     * an {@link #EXTRA_BUG_REPORT} field.
1074     * <p>Output: Nothing.
1075     * @hide
1076     */
1077    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1078    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1079
1080    /**
1081     * Activity Action: Show power usage information to the user.
1082     * <p>Input: Nothing.
1083     * <p>Output: Nothing.
1084     */
1085    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1086    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1087
1088    /**
1089     * Activity Action: Setup wizard to launch after a platform update.  This
1090     * activity should have a string meta-data field associated with it,
1091     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1092     * the platform for setup.  The activity will be launched only if
1093     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1094     * same value.
1095     * <p>Input: Nothing.
1096     * <p>Output: Nothing.
1097     * @hide
1098     */
1099    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1100    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1101
1102    /**
1103     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1104     * describing the last run version of the platform that was setup.
1105     * @hide
1106     */
1107    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1108
1109    // ---------------------------------------------------------------------
1110    // ---------------------------------------------------------------------
1111    // Standard intent broadcast actions (see action variable).
1112
1113    /**
1114     * Broadcast Action: Sent after the screen turns off.
1115     *
1116     * <p class="note">This is a protected intent that can only be sent
1117     * by the system.
1118     */
1119    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1120    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1121    /**
1122     * Broadcast Action: Sent after the screen turns on.
1123     *
1124     * <p class="note">This is a protected intent that can only be sent
1125     * by the system.
1126     */
1127    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1128    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1129
1130    /**
1131     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1132     * keyguard is gone).
1133     *
1134     * <p class="note">This is a protected intent that can only be sent
1135     * by the system.
1136     */
1137    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1138    public static final String ACTION_USER_PRESENT= "android.intent.action.USER_PRESENT";
1139
1140    /**
1141     * Broadcast Action: The current time has changed.  Sent every
1142     * minute.  You can <em>not</em> receive this through components declared
1143     * in manifests, only by exlicitly registering for it with
1144     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1145     * Context.registerReceiver()}.
1146     *
1147     * <p class="note">This is a protected intent that can only be sent
1148     * by the system.
1149     */
1150    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1151    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1152    /**
1153     * Broadcast Action: The time was set.
1154     */
1155    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1156    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1157    /**
1158     * Broadcast Action: The date has changed.
1159     */
1160    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1161    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1162    /**
1163     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1164     * <ul>
1165     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1166     * </ul>
1167     *
1168     * <p class="note">This is a protected intent that can only be sent
1169     * by the system.
1170     */
1171    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1172    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1173    /**
1174     * Alarm Changed Action: This is broadcast when the AlarmClock
1175     * application's alarm is set or unset.  It is used by the
1176     * AlarmClock application and the StatusBar service.
1177     * @hide
1178     */
1179    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1180    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1181    /**
1182     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1183     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1184     * @hide
1185     */
1186    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1187    public static final String ACTION_SYNC_STATE_CHANGED
1188            = "android.intent.action.SYNC_STATE_CHANGED";
1189    /**
1190     * Broadcast Action: This is broadcast once, after the system has finished
1191     * booting.  It can be used to perform application-specific initialization,
1192     * such as installing alarms.  You must hold the
1193     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1194     * in order to receive this broadcast.
1195     *
1196     * <p class="note">This is a protected intent that can only be sent
1197     * by the system.
1198     */
1199    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1200    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1201    /**
1202     * Broadcast Action: This is broadcast when a user action should request a
1203     * temporary system dialog to dismiss.  Some examples of temporary system
1204     * dialogs are the notification window-shade and the recent tasks dialog.
1205     */
1206    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1207    /**
1208     * Broadcast Action: Trigger the download and eventual installation
1209     * of a package.
1210     * <p>Input: {@link #getData} is the URI of the package file to download.
1211     *
1212     * <p class="note">This is a protected intent that can only be sent
1213     * by the system.
1214     */
1215    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1216    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1217    /**
1218     * Broadcast Action: A new application package has been installed on the
1219     * device. The data contains the name of the package.  Note that the
1220     * newly installed package does <em>not</em> receive this broadcast.
1221     * <p>My include the following extras:
1222     * <ul>
1223     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1224     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1225     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1226     * </ul>
1227     *
1228     * <p class="note">This is a protected intent that can only be sent
1229     * by the system.
1230     */
1231    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1232    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1233    /**
1234     * Broadcast Action: A new version of an application package has been
1235     * installed, replacing an existing version that was previously installed.
1236     * The data contains the name of the package.
1237     * <p>My include the following extras:
1238     * <ul>
1239     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1240     * </ul>
1241     *
1242     * <p class="note">This is a protected intent that can only be sent
1243     * by the system.
1244     */
1245    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1246    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1247    /**
1248     * Broadcast Action: An existing application package has been removed from
1249     * the device.  The data contains the name of the package.  The package
1250     * that is being installed does <em>not</em> receive this Intent.
1251     * <ul>
1252     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1253     * to the package.
1254     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1255     * application -- data and code -- is being removed.
1256     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1257     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1258     * </ul>
1259     *
1260     * <p class="note">This is a protected intent that can only be sent
1261     * by the system.
1262     */
1263    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1264    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1265    /**
1266     * Broadcast Action: An existing application package has been changed (e.g. a component has been
1267     * enabled or disabled.  The data contains the name of the package.
1268     * <ul>
1269     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1270     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME} containing the class name of the changed component.
1271     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the default action of restarting the application.
1272     * </ul>
1273     *
1274     * <p class="note">This is a protected intent that can only be sent
1275     * by the system.
1276     */
1277    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1278    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1279    /**
1280     * Broadcast Action: The user has restarted a package, and all of its
1281     * processes have been killed.  All runtime state
1282     * associated with it (processes, alarms, notifications, etc) should
1283     * be removed.  Note that the restarted package does <em>not</em>
1284     * receive this broadcast.
1285     * The data contains the name of the package.
1286     * <ul>
1287     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1288     * </ul>
1289     *
1290     * <p class="note">This is a protected intent that can only be sent
1291     * by the system.
1292     */
1293    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1294    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1295    /**
1296     * Broadcast Action: The user has cleared the data of a package.  This should
1297     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1298     * its persistent data is erased and this broadcast sent.
1299     * Note that the cleared package does <em>not</em>
1300     * receive this broadcast. The data contains the name of the package.
1301     * <ul>
1302     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1303     * </ul>
1304     *
1305     * <p class="note">This is a protected intent that can only be sent
1306     * by the system.
1307     */
1308    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1309    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1310    /**
1311     * Broadcast Action: A user ID has been removed from the system.  The user
1312     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1313     *
1314     * <p class="note">This is a protected intent that can only be sent
1315     * by the system.
1316     */
1317    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1318    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1319    /**
1320     * Broadcast Action:  The current system wallpaper has changed.  See
1321     * {@link Context#getWallpaper} for retrieving the new wallpaper.
1322     */
1323    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1324    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1325    /**
1326     * Broadcast Action: The current device {@link android.content.res.Configuration}
1327     * (orientation, locale, etc) has changed.  When such a change happens, the
1328     * UIs (view hierarchy) will need to be rebuilt based on this new
1329     * information; for the most part, applications don't need to worry about
1330     * this, because the system will take care of stopping and restarting the
1331     * application to make sure it sees the new changes.  Some system code that
1332     * can not be restarted will need to watch for this action and handle it
1333     * appropriately.
1334     *
1335     * <p class="note">This is a protected intent that can only be sent
1336     * by the system.
1337     *
1338     * @see android.content.res.Configuration
1339     */
1340    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1341    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1342    /**
1343     * Broadcast Action:  The charging state, or charge level of the battery has
1344     * changed.
1345     *
1346     * <p class="note">
1347     * You can <em>not</em> receive this through components declared
1348     * in manifests, only by explicitly registering for it with
1349     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1350     * Context.registerReceiver()}.
1351     *
1352     * <p class="note">This is a protected intent that can only be sent
1353     * by the system.
1354     */
1355    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1356    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1357    /**
1358     * Broadcast Action:  Indicates low battery condition on the device.
1359     * This broadcast corresponds to the "Low battery warning" system dialog.
1360     *
1361     * <p class="note">This is a protected intent that can only be sent
1362     * by the system.
1363     */
1364    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1365    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1366    /**
1367     * Broadcast Action:  Indicates the battery is now okay after being low.
1368     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1369     * gone back up to an okay state.
1370     *
1371     * <p class="note">This is a protected intent that can only be sent
1372     * by the system.
1373     */
1374    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1375    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1376    /**
1377     * Broadcast Action:  External power has been connected to the device.
1378     * This is intended for applications that wish to register specifically to this notification.
1379     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1380     * stay active to receive this notification.  This action can be used to implement actions
1381     * that wait until power is available to trigger.
1382     *
1383     * <p class="note">This is a protected intent that can only be sent
1384     * by the system.
1385     */
1386    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1387    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1388    /**
1389     * Broadcast Action:  External power has been removed from the device.
1390     * This is intended for applications that wish to register specifically to this notification.
1391     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1392     * stay active to receive this notification.  This action can be used to implement actions
1393     * that wait until power is available to trigger.
1394     *
1395     * <p class="note">This is a protected intent that can only be sent
1396     * by the system.
1397     */
1398    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1399    public static final String ACTION_POWER_DISCONNECTED =
1400            "android.intent.action.ACTION_POWER_DISCONNECTED";
1401    /**
1402     * Broadcast Action:  Device is shutting down.
1403     * This is broadcast when the device is being shut down (completely turned
1404     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1405     * will proceed and all unsaved data lost.  Apps will not normally need
1406     * to handle this, since the foreground activity will be paused as well.
1407     *
1408     * <p class="note">This is a protected intent that can only be sent
1409     * by the system.
1410     */
1411    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1412    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1413    /**
1414     * Activity Action:  Start this activity to request system shutdown.
1415     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1416     * to request confirmation from the user before shutting down.
1417     *
1418     * <p class="note">This is a protected intent that can only be sent
1419     * by the system.
1420     *
1421     * {@hide}
1422     */
1423    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1424    /**
1425     * Broadcast Action:  Indicates low memory condition on the device
1426     *
1427     * <p class="note">This is a protected intent that can only be sent
1428     * by the system.
1429     */
1430    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1431    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1432    /**
1433     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1434     *
1435     * <p class="note">This is a protected intent that can only be sent
1436     * by the system.
1437     */
1438    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1439    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1440    /**
1441     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1442     * and package management should be started.
1443     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1444     * notification.
1445     */
1446    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1447    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1448    /**
1449     * Broadcast Action:  The device has entered USB Mass Storage mode.
1450     * This is used mainly for the USB Settings panel.
1451     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1452     * when the SD card file system is mounted or unmounted
1453     */
1454    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1455    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1456
1457    /**
1458     * Broadcast Action:  The device has exited USB Mass Storage mode.
1459     * This is used mainly for the USB Settings panel.
1460     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1461     * when the SD card file system is mounted or unmounted
1462     */
1463    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1464    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1465
1466    /**
1467     * Broadcast Action:  External media has been removed.
1468     * The path to the mount point for the removed media is contained in the Intent.mData field.
1469     */
1470    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1471    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1472
1473    /**
1474     * Broadcast Action:  External media is present, but not mounted at its mount point.
1475     * The path to the mount point for the removed media is contained in the Intent.mData field.
1476     */
1477    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1478    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1479
1480    /**
1481     * Broadcast Action:  External media is present, and being disk-checked
1482     * The path to the mount point for the checking media is contained in the Intent.mData field.
1483     */
1484    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1485    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1486
1487    /**
1488     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1489     * The path to the mount point for the checking media is contained in the Intent.mData field.
1490     */
1491    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1492    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1493
1494    /**
1495     * Broadcast Action:  External media is present and mounted at its mount point.
1496     * The path to the mount point for the removed media is contained in the Intent.mData field.
1497     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1498     * media was mounted read only.
1499     */
1500    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1501    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1502
1503    /**
1504     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1505     * The path to the mount point for the removed media is contained in the Intent.mData field.
1506     */
1507    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1508    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1509
1510    /**
1511     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1512     * The path to the mount point for the removed media is contained in the Intent.mData field.
1513     */
1514    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1515    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1516
1517    /**
1518     * Broadcast Action:  External media is present but cannot be mounted.
1519     * The path to the mount point for the removed media is contained in the Intent.mData field.
1520     */
1521    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1522    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1523
1524   /**
1525     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1526     * Applications should close all files they have open within the mount point when they receive this intent.
1527     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1528     */
1529    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1530    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1531
1532    /**
1533     * Broadcast Action:  The media scanner has started scanning a directory.
1534     * The path to the directory being scanned is contained in the Intent.mData field.
1535     */
1536    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1537    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1538
1539   /**
1540     * Broadcast Action:  The media scanner has finished scanning a directory.
1541     * The path to the scanned directory is contained in the Intent.mData field.
1542     */
1543    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1544    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1545
1546   /**
1547     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1548     * The path to the file is contained in the Intent.mData field.
1549     */
1550    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1551    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1552
1553   /**
1554     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1555     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1556     * caused the broadcast.
1557     */
1558    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1559    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1560
1561    /**
1562     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1563     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1564     * caused the broadcast.
1565     */
1566    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1567    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1568
1569    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1570    // location; they are not general-purpose actions.
1571
1572    /**
1573     * Broadcast Action: An GTalk connection has been established.
1574     */
1575    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1576    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1577            "android.intent.action.GTALK_CONNECTED";
1578
1579    /**
1580     * Broadcast Action: An GTalk connection has been disconnected.
1581     */
1582    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1583    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1584            "android.intent.action.GTALK_DISCONNECTED";
1585
1586    /**
1587     * Broadcast Action: An input method has been changed.
1588     */
1589    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1590    public static final String ACTION_INPUT_METHOD_CHANGED =
1591            "android.intent.action.INPUT_METHOD_CHANGED";
1592
1593    /**
1594     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1595     * more radios have been turned off or on. The intent will have the following extra value:</p>
1596     * <ul>
1597     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1598     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1599     *   turned off</li>
1600     * </ul>
1601     *
1602     * <p class="note">This is a protected intent that can only be sent
1603     * by the system.
1604     */
1605    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1606    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1607
1608    /**
1609     * Broadcast Action: Some content providers have parts of their namespace
1610     * where they publish new events or items that the user may be especially
1611     * interested in. For these things, they may broadcast this action when the
1612     * set of interesting items change.
1613     *
1614     * For example, GmailProvider sends this notification when the set of unread
1615     * mail in the inbox changes.
1616     *
1617     * <p>The data of the intent identifies which part of which provider
1618     * changed. When queried through the content resolver, the data URI will
1619     * return the data set in question.
1620     *
1621     * <p>The intent will have the following extra values:
1622     * <ul>
1623     *   <li><em>count</em> - The number of items in the data set. This is the
1624     *       same as the number of items in the cursor returned by querying the
1625     *       data URI. </li>
1626     * </ul>
1627     *
1628     * This intent will be sent at boot (if the count is non-zero) and when the
1629     * data set changes. It is possible for the data set to change without the
1630     * count changing (for example, if a new unread message arrives in the same
1631     * sync operation in which a message is archived). The phone should still
1632     * ring/vibrate/etc as normal in this case.
1633     */
1634    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1635    public static final String ACTION_PROVIDER_CHANGED =
1636            "android.intent.action.PROVIDER_CHANGED";
1637
1638    /**
1639     * Broadcast Action: Wired Headset plugged in or unplugged.
1640     *
1641     * <p>The intent will have the following extra values:
1642     * <ul>
1643     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1644     *   <li><em>name</em> - Headset type, human readable string </li>
1645     * </ul>
1646     * </ul>
1647     */
1648    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1649    public static final String ACTION_HEADSET_PLUG =
1650            "android.intent.action.HEADSET_PLUG";
1651
1652    /**
1653     * Broadcast Action: An outgoing call is about to be placed.
1654     *
1655     * <p>The Intent will have the following extra value:
1656     * <ul>
1657     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1658     *       the phone number originally intended to be dialed.</li>
1659     * </ul>
1660     * <p>Once the broadcast is finished, the resultData is used as the actual
1661     * number to call.  If  <code>null</code>, no call will be placed.</p>
1662     * <p>It is perfectly acceptable for multiple receivers to process the
1663     * outgoing call in turn: for example, a parental control application
1664     * might verify that the user is authorized to place the call at that
1665     * time, then a number-rewriting application might add an area code if
1666     * one was not specified.</p>
1667     * <p>For consistency, any receiver whose purpose is to prohibit phone
1668     * calls should have a priority of 0, to ensure it will see the final
1669     * phone number to be dialed.
1670     * Any receiver whose purpose is to rewrite phone numbers to be called
1671     * should have a positive priority.
1672     * Negative priorities are reserved for the system for this broadcast;
1673     * using them may cause problems.</p>
1674     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1675     * abort the broadcast.</p>
1676     * <p>Emergency calls cannot be intercepted using this mechanism, and
1677     * other calls cannot be modified to call emergency numbers using this
1678     * mechanism.
1679     * <p>You must hold the
1680     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1681     * permission to receive this Intent.</p>
1682     *
1683     * <p class="note">This is a protected intent that can only be sent
1684     * by the system.
1685     */
1686    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1687    public static final String ACTION_NEW_OUTGOING_CALL =
1688            "android.intent.action.NEW_OUTGOING_CALL";
1689
1690    /**
1691     * Broadcast Action: Have the device reboot.  This is only for use by
1692     * system code.
1693     *
1694     * <p class="note">This is a protected intent that can only be sent
1695     * by the system.
1696     */
1697    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1698    public static final String ACTION_REBOOT =
1699            "android.intent.action.REBOOT";
1700
1701    /**
1702     * Broadcast Action: a remote intent is to be broadcasted.
1703     *
1704     * A remote intent is used for remote RPC between devices. The remote intent
1705     * is serialized and sent from one device to another device. The receiving
1706     * device parses the remote intent and broadcasts it. Note that anyone can
1707     * broadcast a remote intent. However, if the intent receiver of the remote intent
1708     * does not trust intent broadcasts from arbitrary intent senders, it should require
1709     * the sender to hold certain permissions so only trusted sender's broadcast will be
1710     * let through.
1711     */
1712    public static final String ACTION_REMOTE_INTENT =
1713            "android.intent.action.REMOTE_INTENT";
1714
1715    /**
1716     * Broadcast Action: hook for permforming cleanup after a system update.
1717     *
1718     * The broadcast is sent when the system is booting, before the
1719     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1720     * image.  A receiver for this should do its work and then disable itself
1721     * so that it does not get run again at the next boot.
1722     * @hide
1723     */
1724    public static final String ACTION_PRE_BOOT_COMPLETED =
1725            "android.intent.action.PRE_BOOT_COMPLETED";
1726
1727    // ---------------------------------------------------------------------
1728    // ---------------------------------------------------------------------
1729    // Standard intent categories (see addCategory()).
1730
1731    /**
1732     * Set if the activity should be an option for the default action
1733     * (center press) to perform on a piece of data.  Setting this will
1734     * hide from the user any activities without it set when performing an
1735     * action on some data.  Note that this is normal -not- set in the
1736     * Intent when initiating an action -- it is for use in intent filters
1737     * specified in packages.
1738     */
1739    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1740    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1741    /**
1742     * Activities that can be safely invoked from a browser must support this
1743     * category.  For example, if the user is viewing a web page or an e-mail
1744     * and clicks on a link in the text, the Intent generated execute that
1745     * link will require the BROWSABLE category, so that only activities
1746     * supporting this category will be considered as possible actions.  By
1747     * supporting this category, you are promising that there is nothing
1748     * damaging (without user intervention) that can happen by invoking any
1749     * matching Intent.
1750     */
1751    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1752    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1753    /**
1754     * Set if the activity should be considered as an alternative action to
1755     * the data the user is currently viewing.  See also
1756     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1757     * applies to the selection in a list of items.
1758     *
1759     * <p>Supporting this category means that you would like your activity to be
1760     * displayed in the set of alternative things the user can do, usually as
1761     * part of the current activity's options menu.  You will usually want to
1762     * include a specific label in the &lt;intent-filter&gt; of this action
1763     * describing to the user what it does.
1764     *
1765     * <p>The action of IntentFilter with this category is important in that it
1766     * describes the specific action the target will perform.  This generally
1767     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1768     * a specific name such as "com.android.camera.action.CROP.  Only one
1769     * alternative of any particular action will be shown to the user, so using
1770     * a specific action like this makes sure that your alternative will be
1771     * displayed while also allowing other applications to provide their own
1772     * overrides of that particular action.
1773     */
1774    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1775    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1776    /**
1777     * Set if the activity should be considered as an alternative selection
1778     * action to the data the user has currently selected.  This is like
1779     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1780     * of items from which the user can select, giving them alternatives to the
1781     * default action that will be performed on it.
1782     */
1783    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1784    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1785    /**
1786     * Intended to be used as a tab inside of an containing TabActivity.
1787     */
1788    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1789    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1790    /**
1791     * Should be displayed in the top-level launcher.
1792     */
1793    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1794    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1795    /**
1796     * Provides information about the package it is in; typically used if
1797     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1798     * a front-door to the user without having to be shown in the all apps list.
1799     */
1800    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1801    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1802    /**
1803     * This is the home activity, that is the first activity that is displayed
1804     * when the device boots.
1805     */
1806    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1807    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1808    /**
1809     * This activity is a preference panel.
1810     */
1811    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1812    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1813    /**
1814     * This activity is a development preference panel.
1815     */
1816    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1817    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1818    /**
1819     * Capable of running inside a parent activity container.
1820     */
1821    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1822    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1823    /**
1824     * This activity may be exercised by the monkey or other automated test tools.
1825     */
1826    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1827    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1828    /**
1829     * To be used as a test (not part of the normal user experience).
1830     */
1831    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1832    /**
1833     * To be used as a unit test (run through the Test Harness).
1834     */
1835    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1836    /**
1837     * To be used as an sample code example (not part of the normal user
1838     * experience).
1839     */
1840    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1841    /**
1842     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1843     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1844     * when queried, though it is allowable for those columns to be blank.
1845     */
1846    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1847    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1848
1849    /**
1850     * To be used as code under test for framework instrumentation tests.
1851     */
1852    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1853            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1854
1855    /**
1856     * Broadcast Action:  The phone was docked or undocked.  Includes the extra
1857     * field {@link #EXTRA_DOCK_STATE}, containing the current dock state.
1858     * @hide
1859     */
1860    public static final String ACTION_DOCK_EVENT = "android.intent.action.DOCK_EVENT";
1861
1862    // ---------------------------------------------------------------------
1863    // ---------------------------------------------------------------------
1864    // Standard extra data keys.
1865
1866    /**
1867     * The initial data to place in a newly created record.  Use with
1868     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1869     * fields as would be given to the underlying ContentProvider.insert()
1870     * call.
1871     */
1872    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1873
1874    /**
1875     * A constant CharSequence that is associated with the Intent, used with
1876     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1877     * this may be a styled CharSequence, so you must use
1878     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1879     * retrieve it.
1880     */
1881    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1882
1883    /**
1884     * A content: URI holding a stream of data associated with the Intent,
1885     * used with {@link #ACTION_SEND} to supply the data being sent.
1886     */
1887    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1888
1889    /**
1890     * A String[] holding e-mail addresses that should be delivered to.
1891     */
1892    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1893
1894    /**
1895     * A String[] holding e-mail addresses that should be carbon copied.
1896     */
1897    public static final String EXTRA_CC       = "android.intent.extra.CC";
1898
1899    /**
1900     * A String[] holding e-mail addresses that should be blind carbon copied.
1901     */
1902    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1903
1904    /**
1905     * A constant string holding the desired subject line of a message.
1906     */
1907    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1908
1909    /**
1910     * An Intent describing the choices you would like shown with
1911     * {@link #ACTION_PICK_ACTIVITY}.
1912     */
1913    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1914
1915    /**
1916     * A CharSequence dialog title to provide to the user when used with a
1917     * {@link #ACTION_CHOOSER}.
1918     */
1919    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1920
1921    /**
1922     * A {@link android.view.KeyEvent} object containing the event that
1923     * triggered the creation of the Intent it is in.
1924     */
1925    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1926
1927    /**
1928     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
1929     * before shutting down.
1930     *
1931     * {@hide}
1932     */
1933    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
1934
1935    /**
1936     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1937     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
1938     * of restarting the application.
1939     */
1940    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
1941
1942    /**
1943     * A String holding the phone number originally entered in
1944     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
1945     * number to call in a {@link android.content.Intent#ACTION_CALL}.
1946     */
1947    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
1948    /**
1949     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
1950     * intents to supply the uid the package had been assigned.  Also an optional
1951     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1952     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
1953     * purpose.
1954     */
1955    public static final String EXTRA_UID = "android.intent.extra.UID";
1956
1957    /**
1958     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1959     * intents to indicate whether this represents a full uninstall (removing
1960     * both the code and its data) or a partial uninstall (leaving its data,
1961     * implying that this is an update).
1962     */
1963    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
1964
1965    /**
1966     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1967     * intents to indicate that this is a replacement of the package, so this
1968     * broadcast will immediately be followed by an add broadcast for a
1969     * different version of the same package.
1970     */
1971    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
1972
1973    /**
1974     * Used as an int extra field in {@link android.app.AlarmManager} intents
1975     * to tell the application being invoked how many pending alarms are being
1976     * delievered with the intent.  For one-shot alarms this will always be 1.
1977     * For recurring alarms, this might be greater than 1 if the device was
1978     * asleep or powered off at the time an earlier alarm would have been
1979     * delivered.
1980     */
1981    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
1982
1983    /**
1984     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
1985     * intents to request the dock state.  Possible values are
1986     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
1987     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
1988     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
1989     * @hide
1990     */
1991    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
1992
1993    /**
1994     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
1995     * to represent that the phone is not in any dock.
1996     * @hide
1997     */
1998    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
1999
2000    /**
2001     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2002     * to represent that the phone is in a desk dock.
2003     * @hide
2004     */
2005    public static final int EXTRA_DOCK_STATE_DESK = 1;
2006
2007    /**
2008     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2009     * to represent that the phone is in a car dock.
2010     * @hide
2011     */
2012    public static final int EXTRA_DOCK_STATE_CAR = 2;
2013
2014    /**
2015     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2016     * the bug report.
2017     *
2018     * @hide
2019     */
2020    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2021
2022    /**
2023     * Used as a string extra field when sending an intent to PackageInstaller to install a
2024     * package. Specifies the installer package name; this package will receive the
2025     * {@link #ACTION_APP_ERROR} intent.
2026     *
2027     * @hide
2028     */
2029    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2030            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2031
2032    /**
2033     * Used in the extra field in the remote intent. It's astring token passed with the
2034     * remote intent.
2035     */
2036    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2037            "android.intent.extra.remote_intent_token";
2038
2039    /**
2040     * Used as an int extra field in {@link android.content.Intent#ACTION_PACKAGE_CHANGED}
2041     * intent to supply the name of the component that changed.
2042     *
2043     */
2044    public static final String EXTRA_CHANGED_COMPONENT_NAME =
2045            "android.intent.extra.changed_component_name";
2046
2047    // ---------------------------------------------------------------------
2048    // ---------------------------------------------------------------------
2049    // Intent flags (see mFlags variable).
2050
2051    /**
2052     * If set, the recipient of this Intent will be granted permission to
2053     * perform read operations on the Uri in the Intent's data.
2054     */
2055    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2056    /**
2057     * If set, the recipient of this Intent will be granted permission to
2058     * perform write operations on the Uri in the Intent's data.
2059     */
2060    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2061    /**
2062     * Can be set by the caller to indicate that this Intent is coming from
2063     * a background operation, not from direct user interaction.
2064     */
2065    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2066    /**
2067     * A flag you can enable for debugging: when set, log messages will be
2068     * printed during the resolution of this intent to show you what has
2069     * been found to create the final resolved list.
2070     */
2071    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2072
2073    /**
2074     * If set, the new activity is not kept in the history stack.  As soon as
2075     * the user navigates away from it, the activity is finished.  This may also
2076     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2077     * noHistory} attribute.
2078     */
2079    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2080    /**
2081     * If set, the activity will not be launched if it is already running
2082     * at the top of the history stack.
2083     */
2084    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2085    /**
2086     * If set, this activity will become the start of a new task on this
2087     * history stack.  A task (from the activity that started it to the
2088     * next task activity) defines an atomic group of activities that the
2089     * user can move to.  Tasks can be moved to the foreground and background;
2090     * all of the activities inside of a particular task always remain in
2091     * the same order.  See
2092     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2093     * Activities and Tasks</a> for more details on tasks.
2094     *
2095     * <p>This flag is generally used by activities that want
2096     * to present a "launcher" style behavior: they give the user a list of
2097     * separate things that can be done, which otherwise run completely
2098     * independently of the activity launching them.
2099     *
2100     * <p>When using this flag, if a task is already running for the activity
2101     * you are now starting, then a new activity will not be started; instead,
2102     * the current task will simply be brought to the front of the screen with
2103     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2104     * to disable this behavior.
2105     *
2106     * <p>This flag can not be used when the caller is requesting a result from
2107     * the activity being launched.
2108     */
2109    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2110    /**
2111     * <strong>Do not use this flag unless you are implementing your own
2112     * top-level application launcher.</strong>  Used in conjunction with
2113     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2114     * behavior of bringing an existing task to the foreground.  When set,
2115     * a new task is <em>always</em> started to host the Activity for the
2116     * Intent, regardless of whether there is already an existing task running
2117     * the same thing.
2118     *
2119     * <p><strong>Because the default system does not include graphical task management,
2120     * you should not use this flag unless you provide some way for a user to
2121     * return back to the tasks you have launched.</strong>
2122     *
2123     * <p>This flag is ignored if
2124     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2125     *
2126     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2127     * Activities and Tasks</a> for more details on tasks.
2128     */
2129    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2130    /**
2131     * If set, and the activity being launched is already running in the
2132     * current task, then instead of launching a new instance of that activity,
2133     * all of the other activities on top of it will be closed and this Intent
2134     * will be delivered to the (now on top) old activity as a new Intent.
2135     *
2136     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2137     * If D calls startActivity() with an Intent that resolves to the component
2138     * of activity B, then C and D will be finished and B receive the given
2139     * Intent, resulting in the stack now being: A, B.
2140     *
2141     * <p>The currently running instance of activity B in the above example will
2142     * either receive the new intent you are starting here in its
2143     * onNewIntent() method, or be itself finished and restarted with the
2144     * new intent.  If it has declared its launch mode to be "multiple" (the
2145     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2146     * the same intent, then it will be finished and re-created; for all other
2147     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2148     * Intent will be delivered to the current instance's onNewIntent().
2149     *
2150     * <p>This launch mode can also be used to good effect in conjunction with
2151     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2152     * of a task, it will bring any currently running instance of that task
2153     * to the foreground, and then clear it to its root state.  This is
2154     * especially useful, for example, when launching an activity from the
2155     * notification manager.
2156     *
2157     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2158     * Activities and Tasks</a> for more details on tasks.
2159     */
2160    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2161    /**
2162     * If set and this intent is being used to launch a new activity from an
2163     * existing one, then the reply target of the existing activity will be
2164     * transfered to the new activity.  This way the new activity can call
2165     * {@link android.app.Activity#setResult} and have that result sent back to
2166     * the reply target of the original activity.
2167     */
2168    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2169    /**
2170     * If set and this intent is being used to launch a new activity from an
2171     * existing one, the current activity will not be counted as the top
2172     * activity for deciding whether the new intent should be delivered to
2173     * the top instead of starting a new one.  The previous activity will
2174     * be used as the top, with the assumption being that the current activity
2175     * will finish itself immediately.
2176     */
2177    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2178    /**
2179     * If set, the new activity is not kept in the list of recently launched
2180     * activities.
2181     */
2182    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2183    /**
2184     * This flag is not normally set by application code, but set for you by
2185     * the system as described in the
2186     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2187     * launchMode} documentation for the singleTask mode.
2188     */
2189    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2190    /**
2191     * If set, and this activity is either being started in a new task or
2192     * bringing to the top an existing task, then it will be launched as
2193     * the front door of the task.  This will result in the application of
2194     * any affinities needed to have that task in the proper state (either
2195     * moving activities to or from it), or simply resetting that task to
2196     * its initial state if needed.
2197     */
2198    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2199    /**
2200     * This flag is not normally set by application code, but set for you by
2201     * the system if this activity is being launched from history
2202     * (longpress home key).
2203     */
2204    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2205    /**
2206     * If set, this marks a point in the task's activity stack that should
2207     * be cleared when the task is reset.  That is, the next time the task
2208     * is brought to the foreground with
2209     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2210     * the user re-launching it from home), this activity and all on top of
2211     * it will be finished so that the user does not return to them, but
2212     * instead returns to whatever activity preceeded it.
2213     *
2214     * <p>This is useful for cases where you have a logical break in your
2215     * application.  For example, an e-mail application may have a command
2216     * to view an attachment, which launches an image view activity to
2217     * display it.  This activity should be part of the e-mail application's
2218     * task, since it is a part of the task the user is involved in.  However,
2219     * if the user leaves that task, and later selects the e-mail app from
2220     * home, we may like them to return to the conversation they were
2221     * viewing, not the picture attachment, since that is confusing.  By
2222     * setting this flag when launching the image viewer, that viewer and
2223     * any activities it starts will be removed the next time the user returns
2224     * to mail.
2225     */
2226    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2227    /**
2228     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2229     * callback from occurring on the current frontmost activity before it is
2230     * paused as the newly-started activity is brought to the front.
2231     *
2232     * <p>Typically, an activity can rely on that callback to indicate that an
2233     * explicit user action has caused their activity to be moved out of the
2234     * foreground. The callback marks an appropriate point in the activity's
2235     * lifecycle for it to dismiss any notifications that it intends to display
2236     * "until the user has seen them," such as a blinking LED.
2237     *
2238     * <p>If an activity is ever started via any non-user-driven events such as
2239     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2240     * Context#startActivity Context.startActivity}, ensuring that the pausing
2241     * activity does not think the user has acknowledged its notification.
2242     */
2243    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2244    /**
2245     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2246     * this flag will cause the launched activity to be brought to the front of its
2247     * task's history stack if it is already running.
2248     *
2249     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2250     * If D calls startActivity() with an Intent that resolves to the component
2251     * of activity B, then B will be brought to the front of the history stack,
2252     * with this resulting order:  A, C, D, B.
2253     *
2254     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2255     * specified.
2256     */
2257    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2258    /**
2259     * If set, when sending a broadcast only registered receivers will be
2260     * called -- no BroadcastReceiver components will be launched.
2261     */
2262    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2263    /**
2264     * If set, when sending a broadcast <i>before boot has completed</i> only
2265     * registered receivers will be called -- no BroadcastReceiver components
2266     * will be launched.  Sticky intent state will be recorded properly even
2267     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2268     * is specified in the broadcast intent, this flag is unnecessary.
2269     *
2270     * <p>This flag is only for use by system sevices as a convenience to
2271     * avoid having to implement a more complex mechanism around detection
2272     * of boot completion.
2273     *
2274     * @hide
2275     */
2276    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2277    /**
2278     * Set when this broadcast is for a boot upgrade, a special mode that
2279     * allows the broadcast to be sent before the system is ready and launches
2280     * the app process with no providers running in it.
2281     * @hide
2282     */
2283    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x10000000;
2284
2285    // ---------------------------------------------------------------------
2286    // ---------------------------------------------------------------------
2287    // toUri() and parseUri() options.
2288
2289    /**
2290     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2291     * always has the "intent:" scheme.  This syntax can be used when you want
2292     * to later disambiguate between URIs that are intended to describe an
2293     * Intent vs. all others that should be treated as raw URIs.  When used
2294     * with {@link #parseUri}, any other scheme will result in a generic
2295     * VIEW action for that raw URI.
2296     */
2297    public static final int URI_INTENT_SCHEME = 1<<0;
2298
2299    // ---------------------------------------------------------------------
2300
2301    private String mAction;
2302    private Uri mData;
2303    private String mType;
2304    private String mPackage;
2305    private ComponentName mComponent;
2306    private int mFlags;
2307    private HashSet<String> mCategories;
2308    private Bundle mExtras;
2309
2310    // ---------------------------------------------------------------------
2311
2312    /**
2313     * Create an empty intent.
2314     */
2315    public Intent() {
2316    }
2317
2318    /**
2319     * Copy constructor.
2320     */
2321    public Intent(Intent o) {
2322        this.mAction = o.mAction;
2323        this.mData = o.mData;
2324        this.mType = o.mType;
2325        this.mPackage = o.mPackage;
2326        this.mComponent = o.mComponent;
2327        this.mFlags = o.mFlags;
2328        if (o.mCategories != null) {
2329            this.mCategories = new HashSet<String>(o.mCategories);
2330        }
2331        if (o.mExtras != null) {
2332            this.mExtras = new Bundle(o.mExtras);
2333        }
2334    }
2335
2336    @Override
2337    public Object clone() {
2338        return new Intent(this);
2339    }
2340
2341    private Intent(Intent o, boolean all) {
2342        this.mAction = o.mAction;
2343        this.mData = o.mData;
2344        this.mType = o.mType;
2345        this.mPackage = o.mPackage;
2346        this.mComponent = o.mComponent;
2347        if (o.mCategories != null) {
2348            this.mCategories = new HashSet<String>(o.mCategories);
2349        }
2350    }
2351
2352    /**
2353     * Make a clone of only the parts of the Intent that are relevant for
2354     * filter matching: the action, data, type, component, and categories.
2355     */
2356    public Intent cloneFilter() {
2357        return new Intent(this, false);
2358    }
2359
2360    /**
2361     * Create an intent with a given action.  All other fields (data, type,
2362     * class) are null.  Note that the action <em>must</em> be in a
2363     * namespace because Intents are used globally in the system -- for
2364     * example the system VIEW action is android.intent.action.VIEW; an
2365     * application's custom action would be something like
2366     * com.google.app.myapp.CUSTOM_ACTION.
2367     *
2368     * @param action The Intent action, such as ACTION_VIEW.
2369     */
2370    public Intent(String action) {
2371        mAction = action;
2372    }
2373
2374    /**
2375     * Create an intent with a given action and for a given data url.  Note
2376     * that the action <em>must</em> be in a namespace because Intents are
2377     * used globally in the system -- for example the system VIEW action is
2378     * android.intent.action.VIEW; an application's custom action would be
2379     * something like com.google.app.myapp.CUSTOM_ACTION.
2380     *
2381     * <p><em>Note: scheme and host name matching in the Android framework is
2382     * case-sensitive, unlike the formal RFC.  As a result,
2383     * you should always ensure that you write your Uri with these elements
2384     * using lower case letters, and normalize any Uris you receive from
2385     * outside of Android to ensure the scheme and host is lower case.</em></p>
2386     *
2387     * @param action The Intent action, such as ACTION_VIEW.
2388     * @param uri The Intent data URI.
2389     */
2390    public Intent(String action, Uri uri) {
2391        mAction = action;
2392        mData = uri;
2393    }
2394
2395    /**
2396     * Create an intent for a specific component.  All other fields (action, data,
2397     * type, class) are null, though they can be modified later with explicit
2398     * calls.  This provides a convenient way to create an intent that is
2399     * intended to execute a hard-coded class name, rather than relying on the
2400     * system to find an appropriate class for you; see {@link #setComponent}
2401     * for more information on the repercussions of this.
2402     *
2403     * @param packageContext A Context of the application package implementing
2404     * this class.
2405     * @param cls The component class that is to be used for the intent.
2406     *
2407     * @see #setClass
2408     * @see #setComponent
2409     * @see #Intent(String, android.net.Uri , Context, Class)
2410     */
2411    public Intent(Context packageContext, Class<?> cls) {
2412        mComponent = new ComponentName(packageContext, cls);
2413    }
2414
2415    /**
2416     * Create an intent for a specific component with a specified action and data.
2417     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2418     * construct the Intent and then calling {@link #setClass} to set its
2419     * class.
2420     *
2421     * <p><em>Note: scheme and host name matching in the Android framework is
2422     * case-sensitive, unlike the formal RFC.  As a result,
2423     * you should always ensure that you write your Uri with these elements
2424     * using lower case letters, and normalize any Uris you receive from
2425     * outside of Android to ensure the scheme and host is lower case.</em></p>
2426     *
2427     * @param action The Intent action, such as ACTION_VIEW.
2428     * @param uri The Intent data URI.
2429     * @param packageContext A Context of the application package implementing
2430     * this class.
2431     * @param cls The component class that is to be used for the intent.
2432     *
2433     * @see #Intent(String, android.net.Uri)
2434     * @see #Intent(Context, Class)
2435     * @see #setClass
2436     * @see #setComponent
2437     */
2438    public Intent(String action, Uri uri,
2439            Context packageContext, Class<?> cls) {
2440        mAction = action;
2441        mData = uri;
2442        mComponent = new ComponentName(packageContext, cls);
2443    }
2444
2445    /**
2446     * Call {@link #parseUri} with 0 flags.
2447     * @deprecated Use {@link #parseUri} instead.
2448     */
2449    @Deprecated
2450    public static Intent getIntent(String uri) throws URISyntaxException {
2451        return parseUri(uri, 0);
2452    }
2453
2454    /**
2455     * Create an intent from a URI.  This URI may encode the action,
2456     * category, and other intent fields, if it was returned by
2457     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2458     * will be the entire URI and its action will be ACTION_VIEW.
2459     *
2460     * <p>The URI given here must not be relative -- that is, it must include
2461     * the scheme and full path.
2462     *
2463     * @param uri The URI to turn into an Intent.
2464     * @param flags Additional processing flags.  Either 0 or
2465     *
2466     * @return Intent The newly created Intent object.
2467     *
2468     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2469     * it bad (as parsed by the Uri class) or the Intent data within the
2470     * URI is invalid.
2471     *
2472     * @see #toUri
2473     */
2474    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2475        int i = 0;
2476        try {
2477            // Validate intent scheme for if requested.
2478            if ((flags&URI_INTENT_SCHEME) != 0) {
2479                if (!uri.startsWith("intent:")) {
2480                    Intent intent = new Intent(ACTION_VIEW);
2481                    try {
2482                        intent.setData(Uri.parse(uri));
2483                    } catch (IllegalArgumentException e) {
2484                        throw new URISyntaxException(uri, e.getMessage());
2485                    }
2486                    return intent;
2487                }
2488            }
2489
2490            // simple case
2491            i = uri.lastIndexOf("#");
2492            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2493
2494            // old format Intent URI
2495            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2496
2497            // new format
2498            Intent intent = new Intent(ACTION_VIEW);
2499
2500            // fetch data part, if present
2501            String data = i >= 0 ? uri.substring(0, i) : null;
2502            String scheme = null;
2503            i += "#Intent;".length();
2504
2505            // loop over contents of Intent, all name=value;
2506            while (!uri.startsWith("end", i)) {
2507                int eq = uri.indexOf('=', i);
2508                int semi = uri.indexOf(';', eq);
2509                String value = Uri.decode(uri.substring(eq + 1, semi));
2510
2511                // action
2512                if (uri.startsWith("action=", i)) {
2513                    intent.mAction = value;
2514                }
2515
2516                // categories
2517                else if (uri.startsWith("category=", i)) {
2518                    intent.addCategory(value);
2519                }
2520
2521                // type
2522                else if (uri.startsWith("type=", i)) {
2523                    intent.mType = value;
2524                }
2525
2526                // launch  flags
2527                else if (uri.startsWith("launchFlags=", i)) {
2528                    intent.mFlags = Integer.decode(value).intValue();
2529                }
2530
2531                // package
2532                else if (uri.startsWith("package=", i)) {
2533                    intent.mPackage = value;
2534                }
2535
2536                // component
2537                else if (uri.startsWith("component=", i)) {
2538                    intent.mComponent = ComponentName.unflattenFromString(value);
2539                }
2540
2541                // scheme
2542                else if (uri.startsWith("scheme=", i)) {
2543                    scheme = value;
2544                }
2545
2546                // extra
2547                else {
2548                    String key = Uri.decode(uri.substring(i + 2, eq));
2549                    // create Bundle if it doesn't already exist
2550                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2551                    Bundle b = intent.mExtras;
2552                    // add EXTRA
2553                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2554                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2555                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2556                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2557                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2558                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2559                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2560                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2561                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2562                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2563                }
2564
2565                // move to the next item
2566                i = semi + 1;
2567            }
2568
2569            if (data != null) {
2570                if (data.startsWith("intent:")) {
2571                    data = data.substring(7);
2572                    if (scheme != null) {
2573                        data = scheme + ':' + data;
2574                    }
2575                }
2576
2577                if (data.length() > 0) {
2578                    try {
2579                        intent.mData = Uri.parse(data);
2580                    } catch (IllegalArgumentException e) {
2581                        throw new URISyntaxException(uri, e.getMessage());
2582                    }
2583                }
2584            }
2585
2586            return intent;
2587
2588        } catch (IndexOutOfBoundsException e) {
2589            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2590        }
2591    }
2592
2593    public static Intent getIntentOld(String uri) throws URISyntaxException {
2594        Intent intent;
2595
2596        int i = uri.lastIndexOf('#');
2597        if (i >= 0) {
2598            Uri data = null;
2599            String action = null;
2600            if (i > 0) {
2601                data = Uri.parse(uri.substring(0, i));
2602            }
2603
2604            i++;
2605
2606            if (uri.regionMatches(i, "action(", 0, 7)) {
2607                i += 7;
2608                int j = uri.indexOf(')', i);
2609                action = uri.substring(i, j);
2610                i = j + 1;
2611            }
2612
2613            intent = new Intent(action, data);
2614
2615            if (uri.regionMatches(i, "categories(", 0, 11)) {
2616                i += 11;
2617                int j = uri.indexOf(')', i);
2618                while (i < j) {
2619                    int sep = uri.indexOf('!', i);
2620                    if (sep < 0) sep = j;
2621                    if (i < sep) {
2622                        intent.addCategory(uri.substring(i, sep));
2623                    }
2624                    i = sep + 1;
2625                }
2626                i = j + 1;
2627            }
2628
2629            if (uri.regionMatches(i, "type(", 0, 5)) {
2630                i += 5;
2631                int j = uri.indexOf(')', i);
2632                intent.mType = uri.substring(i, j);
2633                i = j + 1;
2634            }
2635
2636            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2637                i += 12;
2638                int j = uri.indexOf(')', i);
2639                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2640                i = j + 1;
2641            }
2642
2643            if (uri.regionMatches(i, "component(", 0, 10)) {
2644                i += 10;
2645                int j = uri.indexOf(')', i);
2646                int sep = uri.indexOf('!', i);
2647                if (sep >= 0 && sep < j) {
2648                    String pkg = uri.substring(i, sep);
2649                    String cls = uri.substring(sep + 1, j);
2650                    intent.mComponent = new ComponentName(pkg, cls);
2651                }
2652                i = j + 1;
2653            }
2654
2655            if (uri.regionMatches(i, "extras(", 0, 7)) {
2656                i += 7;
2657
2658                final int closeParen = uri.indexOf(')', i);
2659                if (closeParen == -1) throw new URISyntaxException(uri,
2660                        "EXTRA missing trailing ')'", i);
2661
2662                while (i < closeParen) {
2663                    // fetch the key value
2664                    int j = uri.indexOf('=', i);
2665                    if (j <= i + 1 || i >= closeParen) {
2666                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2667                    }
2668                    char type = uri.charAt(i);
2669                    i++;
2670                    String key = uri.substring(i, j);
2671                    i = j + 1;
2672
2673                    // get type-value
2674                    j = uri.indexOf('!', i);
2675                    if (j == -1 || j >= closeParen) j = closeParen;
2676                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2677                    String value = uri.substring(i, j);
2678                    i = j;
2679
2680                    // create Bundle if it doesn't already exist
2681                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2682
2683                    // add item to bundle
2684                    try {
2685                        switch (type) {
2686                            case 'S':
2687                                intent.mExtras.putString(key, Uri.decode(value));
2688                                break;
2689                            case 'B':
2690                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2691                                break;
2692                            case 'b':
2693                                intent.mExtras.putByte(key, Byte.parseByte(value));
2694                                break;
2695                            case 'c':
2696                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2697                                break;
2698                            case 'd':
2699                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2700                                break;
2701                            case 'f':
2702                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2703                                break;
2704                            case 'i':
2705                                intent.mExtras.putInt(key, Integer.parseInt(value));
2706                                break;
2707                            case 'l':
2708                                intent.mExtras.putLong(key, Long.parseLong(value));
2709                                break;
2710                            case 's':
2711                                intent.mExtras.putShort(key, Short.parseShort(value));
2712                                break;
2713                            default:
2714                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2715                        }
2716                    } catch (NumberFormatException e) {
2717                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2718                    }
2719
2720                    char ch = uri.charAt(i);
2721                    if (ch == ')') break;
2722                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2723                    i++;
2724                }
2725            }
2726
2727            if (intent.mAction == null) {
2728                // By default, if no action is specified, then use VIEW.
2729                intent.mAction = ACTION_VIEW;
2730            }
2731
2732        } else {
2733            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2734        }
2735
2736        return intent;
2737    }
2738
2739    /**
2740     * Retrieve the general action to be performed, such as
2741     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2742     * the information in the intent should be interpreted -- most importantly,
2743     * what to do with the data returned by {@link #getData}.
2744     *
2745     * @return The action of this intent or null if none is specified.
2746     *
2747     * @see #setAction
2748     */
2749    public String getAction() {
2750        return mAction;
2751    }
2752
2753    /**
2754     * Retrieve data this intent is operating on.  This URI specifies the name
2755     * of the data; often it uses the content: scheme, specifying data in a
2756     * content provider.  Other schemes may be handled by specific activities,
2757     * such as http: by the web browser.
2758     *
2759     * @return The URI of the data this intent is targeting or null.
2760     *
2761     * @see #getScheme
2762     * @see #setData
2763     */
2764    public Uri getData() {
2765        return mData;
2766    }
2767
2768    /**
2769     * The same as {@link #getData()}, but returns the URI as an encoded
2770     * String.
2771     */
2772    public String getDataString() {
2773        return mData != null ? mData.toString() : null;
2774    }
2775
2776    /**
2777     * Return the scheme portion of the intent's data.  If the data is null or
2778     * does not include a scheme, null is returned.  Otherwise, the scheme
2779     * prefix without the final ':' is returned, i.e. "http".
2780     *
2781     * <p>This is the same as calling getData().getScheme() (and checking for
2782     * null data).
2783     *
2784     * @return The scheme of this intent.
2785     *
2786     * @see #getData
2787     */
2788    public String getScheme() {
2789        return mData != null ? mData.getScheme() : null;
2790    }
2791
2792    /**
2793     * Retrieve any explicit MIME type included in the intent.  This is usually
2794     * null, as the type is determined by the intent data.
2795     *
2796     * @return If a type was manually set, it is returned; else null is
2797     *         returned.
2798     *
2799     * @see #resolveType(ContentResolver)
2800     * @see #setType
2801     */
2802    public String getType() {
2803        return mType;
2804    }
2805
2806    /**
2807     * Return the MIME data type of this intent.  If the type field is
2808     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2809     * the type of that data is returned.  If neither fields are set, a null is
2810     * returned.
2811     *
2812     * @return The MIME type of this intent.
2813     *
2814     * @see #getType
2815     * @see #resolveType(ContentResolver)
2816     */
2817    public String resolveType(Context context) {
2818        return resolveType(context.getContentResolver());
2819    }
2820
2821    /**
2822     * Return the MIME data type of this intent.  If the type field is
2823     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2824     * the type of that data is returned.  If neither fields are set, a null is
2825     * returned.
2826     *
2827     * @param resolver A ContentResolver that can be used to determine the MIME
2828     *                 type of the intent's data.
2829     *
2830     * @return The MIME type of this intent.
2831     *
2832     * @see #getType
2833     * @see #resolveType(Context)
2834     */
2835    public String resolveType(ContentResolver resolver) {
2836        if (mType != null) {
2837            return mType;
2838        }
2839        if (mData != null) {
2840            if ("content".equals(mData.getScheme())) {
2841                return resolver.getType(mData);
2842            }
2843        }
2844        return null;
2845    }
2846
2847    /**
2848     * Return the MIME data type of this intent, only if it will be needed for
2849     * intent resolution.  This is not generally useful for application code;
2850     * it is used by the frameworks for communicating with back-end system
2851     * services.
2852     *
2853     * @param resolver A ContentResolver that can be used to determine the MIME
2854     *                 type of the intent's data.
2855     *
2856     * @return The MIME type of this intent, or null if it is unknown or not
2857     *         needed.
2858     */
2859    public String resolveTypeIfNeeded(ContentResolver resolver) {
2860        if (mComponent != null) {
2861            return mType;
2862        }
2863        return resolveType(resolver);
2864    }
2865
2866    /**
2867     * Check if an category exists in the intent.
2868     *
2869     * @param category The category to check.
2870     *
2871     * @return boolean True if the intent contains the category, else false.
2872     *
2873     * @see #getCategories
2874     * @see #addCategory
2875     */
2876    public boolean hasCategory(String category) {
2877        return mCategories != null && mCategories.contains(category);
2878    }
2879
2880    /**
2881     * Return the set of all categories in the intent.  If there are no categories,
2882     * returns NULL.
2883     *
2884     * @return Set The set of categories you can examine.  Do not modify!
2885     *
2886     * @see #hasCategory
2887     * @see #addCategory
2888     */
2889    public Set<String> getCategories() {
2890        return mCategories;
2891    }
2892
2893    /**
2894     * Sets the ClassLoader that will be used when unmarshalling
2895     * any Parcelable values from the extras of this Intent.
2896     *
2897     * @param loader a ClassLoader, or null to use the default loader
2898     * at the time of unmarshalling.
2899     */
2900    public void setExtrasClassLoader(ClassLoader loader) {
2901        if (mExtras != null) {
2902            mExtras.setClassLoader(loader);
2903        }
2904    }
2905
2906    /**
2907     * Returns true if an extra value is associated with the given name.
2908     * @param name the extra's name
2909     * @return true if the given extra is present.
2910     */
2911    public boolean hasExtra(String name) {
2912        return mExtras != null && mExtras.containsKey(name);
2913    }
2914
2915    /**
2916     * Returns true if the Intent's extras contain a parcelled file descriptor.
2917     * @return true if the Intent contains a parcelled file descriptor.
2918     */
2919    public boolean hasFileDescriptors() {
2920        return mExtras != null && mExtras.hasFileDescriptors();
2921    }
2922
2923    /**
2924     * Retrieve extended data from the intent.
2925     *
2926     * @param name The name of the desired item.
2927     *
2928     * @return the value of an item that previously added with putExtra()
2929     * or null if none was found.
2930     *
2931     * @deprecated
2932     * @hide
2933     */
2934    @Deprecated
2935    public Object getExtra(String name) {
2936        return getExtra(name, null);
2937    }
2938
2939    /**
2940     * Retrieve extended data from the intent.
2941     *
2942     * @param name The name of the desired item.
2943     * @param defaultValue the value to be returned if no value of the desired
2944     * type is stored with the given name.
2945     *
2946     * @return the value of an item that previously added with putExtra()
2947     * or the default value if none was found.
2948     *
2949     * @see #putExtra(String, boolean)
2950     */
2951    public boolean getBooleanExtra(String name, boolean defaultValue) {
2952        return mExtras == null ? defaultValue :
2953            mExtras.getBoolean(name, defaultValue);
2954    }
2955
2956    /**
2957     * Retrieve extended data from the intent.
2958     *
2959     * @param name The name of the desired item.
2960     * @param defaultValue the value to be returned if no value of the desired
2961     * type is stored with the given name.
2962     *
2963     * @return the value of an item that previously added with putExtra()
2964     * or the default value if none was found.
2965     *
2966     * @see #putExtra(String, byte)
2967     */
2968    public byte getByteExtra(String name, byte defaultValue) {
2969        return mExtras == null ? defaultValue :
2970            mExtras.getByte(name, defaultValue);
2971    }
2972
2973    /**
2974     * Retrieve extended data from the intent.
2975     *
2976     * @param name The name of the desired item.
2977     * @param defaultValue the value to be returned if no value of the desired
2978     * type is stored with the given name.
2979     *
2980     * @return the value of an item that previously added with putExtra()
2981     * or the default value if none was found.
2982     *
2983     * @see #putExtra(String, short)
2984     */
2985    public short getShortExtra(String name, short defaultValue) {
2986        return mExtras == null ? defaultValue :
2987            mExtras.getShort(name, defaultValue);
2988    }
2989
2990    /**
2991     * Retrieve extended data from the intent.
2992     *
2993     * @param name The name of the desired item.
2994     * @param defaultValue the value to be returned if no value of the desired
2995     * type is stored with the given name.
2996     *
2997     * @return the value of an item that previously added with putExtra()
2998     * or the default value if none was found.
2999     *
3000     * @see #putExtra(String, char)
3001     */
3002    public char getCharExtra(String name, char defaultValue) {
3003        return mExtras == null ? defaultValue :
3004            mExtras.getChar(name, defaultValue);
3005    }
3006
3007    /**
3008     * Retrieve extended data from the intent.
3009     *
3010     * @param name The name of the desired item.
3011     * @param defaultValue the value to be returned if no value of the desired
3012     * type is stored with the given name.
3013     *
3014     * @return the value of an item that previously added with putExtra()
3015     * or the default value if none was found.
3016     *
3017     * @see #putExtra(String, int)
3018     */
3019    public int getIntExtra(String name, int defaultValue) {
3020        return mExtras == null ? defaultValue :
3021            mExtras.getInt(name, defaultValue);
3022    }
3023
3024    /**
3025     * Retrieve extended data from the intent.
3026     *
3027     * @param name The name of the desired item.
3028     * @param defaultValue the value to be returned if no value of the desired
3029     * type is stored with the given name.
3030     *
3031     * @return the value of an item that previously added with putExtra()
3032     * or the default value if none was found.
3033     *
3034     * @see #putExtra(String, long)
3035     */
3036    public long getLongExtra(String name, long defaultValue) {
3037        return mExtras == null ? defaultValue :
3038            mExtras.getLong(name, defaultValue);
3039    }
3040
3041    /**
3042     * Retrieve extended data from the intent.
3043     *
3044     * @param name The name of the desired item.
3045     * @param defaultValue the value to be returned if no value of the desired
3046     * type is stored with the given name.
3047     *
3048     * @return the value of an item that previously added with putExtra(),
3049     * or the default value if no such item is present
3050     *
3051     * @see #putExtra(String, float)
3052     */
3053    public float getFloatExtra(String name, float defaultValue) {
3054        return mExtras == null ? defaultValue :
3055            mExtras.getFloat(name, defaultValue);
3056    }
3057
3058    /**
3059     * Retrieve extended data from the intent.
3060     *
3061     * @param name The name of the desired item.
3062     * @param defaultValue the value to be returned if no value of the desired
3063     * type is stored with the given name.
3064     *
3065     * @return the value of an item that previously added with putExtra()
3066     * or the default value if none was found.
3067     *
3068     * @see #putExtra(String, double)
3069     */
3070    public double getDoubleExtra(String name, double defaultValue) {
3071        return mExtras == null ? defaultValue :
3072            mExtras.getDouble(name, defaultValue);
3073    }
3074
3075    /**
3076     * Retrieve extended data from the intent.
3077     *
3078     * @param name The name of the desired item.
3079     *
3080     * @return the value of an item that previously added with putExtra()
3081     * or null if no String value was found.
3082     *
3083     * @see #putExtra(String, String)
3084     */
3085    public String getStringExtra(String name) {
3086        return mExtras == null ? null : mExtras.getString(name);
3087    }
3088
3089    /**
3090     * Retrieve extended data from the intent.
3091     *
3092     * @param name The name of the desired item.
3093     *
3094     * @return the value of an item that previously added with putExtra()
3095     * or null if no CharSequence value was found.
3096     *
3097     * @see #putExtra(String, CharSequence)
3098     */
3099    public CharSequence getCharSequenceExtra(String name) {
3100        return mExtras == null ? null : mExtras.getCharSequence(name);
3101    }
3102
3103    /**
3104     * Retrieve extended data from the intent.
3105     *
3106     * @param name The name of the desired item.
3107     *
3108     * @return the value of an item that previously added with putExtra()
3109     * or null if no Parcelable value was found.
3110     *
3111     * @see #putExtra(String, Parcelable)
3112     */
3113    public <T extends Parcelable> T getParcelableExtra(String name) {
3114        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3115    }
3116
3117    /**
3118     * Retrieve extended data from the intent.
3119     *
3120     * @param name The name of the desired item.
3121     *
3122     * @return the value of an item that previously added with putExtra()
3123     * or null if no Parcelable[] value was found.
3124     *
3125     * @see #putExtra(String, Parcelable[])
3126     */
3127    public Parcelable[] getParcelableArrayExtra(String name) {
3128        return mExtras == null ? null : mExtras.getParcelableArray(name);
3129    }
3130
3131    /**
3132     * Retrieve extended data from the intent.
3133     *
3134     * @param name The name of the desired item.
3135     *
3136     * @return the value of an item that previously added with putExtra()
3137     * or null if no ArrayList<Parcelable> value was found.
3138     *
3139     * @see #putParcelableArrayListExtra(String, ArrayList)
3140     */
3141    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3142        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3143    }
3144
3145    /**
3146     * Retrieve extended data from the intent.
3147     *
3148     * @param name The name of the desired item.
3149     *
3150     * @return the value of an item that previously added with putExtra()
3151     * or null if no Serializable value was found.
3152     *
3153     * @see #putExtra(String, Serializable)
3154     */
3155    public Serializable getSerializableExtra(String name) {
3156        return mExtras == null ? null : mExtras.getSerializable(name);
3157    }
3158
3159    /**
3160     * Retrieve extended data from the intent.
3161     *
3162     * @param name The name of the desired item.
3163     *
3164     * @return the value of an item that previously added with putExtra()
3165     * or null if no ArrayList<Integer> value was found.
3166     *
3167     * @see #putIntegerArrayListExtra(String, ArrayList)
3168     */
3169    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3170        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3171    }
3172
3173    /**
3174     * Retrieve extended data from the intent.
3175     *
3176     * @param name The name of the desired item.
3177     *
3178     * @return the value of an item that previously added with putExtra()
3179     * or null if no ArrayList<String> value was found.
3180     *
3181     * @see #putStringArrayListExtra(String, ArrayList)
3182     */
3183    public ArrayList<String> getStringArrayListExtra(String name) {
3184        return mExtras == null ? null : mExtras.getStringArrayList(name);
3185    }
3186
3187    /**
3188     * Retrieve extended data from the intent.
3189     *
3190     * @param name The name of the desired item.
3191     *
3192     * @return the value of an item that previously added with putExtra()
3193     * or null if no boolean array value was found.
3194     *
3195     * @see #putExtra(String, boolean[])
3196     */
3197    public boolean[] getBooleanArrayExtra(String name) {
3198        return mExtras == null ? null : mExtras.getBooleanArray(name);
3199    }
3200
3201    /**
3202     * Retrieve extended data from the intent.
3203     *
3204     * @param name The name of the desired item.
3205     *
3206     * @return the value of an item that previously added with putExtra()
3207     * or null if no byte array value was found.
3208     *
3209     * @see #putExtra(String, byte[])
3210     */
3211    public byte[] getByteArrayExtra(String name) {
3212        return mExtras == null ? null : mExtras.getByteArray(name);
3213    }
3214
3215    /**
3216     * Retrieve extended data from the intent.
3217     *
3218     * @param name The name of the desired item.
3219     *
3220     * @return the value of an item that previously added with putExtra()
3221     * or null if no short array value was found.
3222     *
3223     * @see #putExtra(String, short[])
3224     */
3225    public short[] getShortArrayExtra(String name) {
3226        return mExtras == null ? null : mExtras.getShortArray(name);
3227    }
3228
3229    /**
3230     * Retrieve extended data from the intent.
3231     *
3232     * @param name The name of the desired item.
3233     *
3234     * @return the value of an item that previously added with putExtra()
3235     * or null if no char array value was found.
3236     *
3237     * @see #putExtra(String, char[])
3238     */
3239    public char[] getCharArrayExtra(String name) {
3240        return mExtras == null ? null : mExtras.getCharArray(name);
3241    }
3242
3243    /**
3244     * Retrieve extended data from the intent.
3245     *
3246     * @param name The name of the desired item.
3247     *
3248     * @return the value of an item that previously added with putExtra()
3249     * or null if no int array value was found.
3250     *
3251     * @see #putExtra(String, int[])
3252     */
3253    public int[] getIntArrayExtra(String name) {
3254        return mExtras == null ? null : mExtras.getIntArray(name);
3255    }
3256
3257    /**
3258     * Retrieve extended data from the intent.
3259     *
3260     * @param name The name of the desired item.
3261     *
3262     * @return the value of an item that previously added with putExtra()
3263     * or null if no long array value was found.
3264     *
3265     * @see #putExtra(String, long[])
3266     */
3267    public long[] getLongArrayExtra(String name) {
3268        return mExtras == null ? null : mExtras.getLongArray(name);
3269    }
3270
3271    /**
3272     * Retrieve extended data from the intent.
3273     *
3274     * @param name The name of the desired item.
3275     *
3276     * @return the value of an item that previously added with putExtra()
3277     * or null if no float array value was found.
3278     *
3279     * @see #putExtra(String, float[])
3280     */
3281    public float[] getFloatArrayExtra(String name) {
3282        return mExtras == null ? null : mExtras.getFloatArray(name);
3283    }
3284
3285    /**
3286     * Retrieve extended data from the intent.
3287     *
3288     * @param name The name of the desired item.
3289     *
3290     * @return the value of an item that previously added with putExtra()
3291     * or null if no double array value was found.
3292     *
3293     * @see #putExtra(String, double[])
3294     */
3295    public double[] getDoubleArrayExtra(String name) {
3296        return mExtras == null ? null : mExtras.getDoubleArray(name);
3297    }
3298
3299    /**
3300     * Retrieve extended data from the intent.
3301     *
3302     * @param name The name of the desired item.
3303     *
3304     * @return the value of an item that previously added with putExtra()
3305     * or null if no String array value was found.
3306     *
3307     * @see #putExtra(String, String[])
3308     */
3309    public String[] getStringArrayExtra(String name) {
3310        return mExtras == null ? null : mExtras.getStringArray(name);
3311    }
3312
3313    /**
3314     * Retrieve extended data from the intent.
3315     *
3316     * @param name The name of the desired item.
3317     *
3318     * @return the value of an item that previously added with putExtra()
3319     * or null if no Bundle value was found.
3320     *
3321     * @see #putExtra(String, Bundle)
3322     */
3323    public Bundle getBundleExtra(String name) {
3324        return mExtras == null ? null : mExtras.getBundle(name);
3325    }
3326
3327    /**
3328     * Retrieve extended data from the intent.
3329     *
3330     * @param name The name of the desired item.
3331     *
3332     * @return the value of an item that previously added with putExtra()
3333     * or null if no IBinder value was found.
3334     *
3335     * @see #putExtra(String, IBinder)
3336     *
3337     * @deprecated
3338     * @hide
3339     */
3340    @Deprecated
3341    public IBinder getIBinderExtra(String name) {
3342        return mExtras == null ? null : mExtras.getIBinder(name);
3343    }
3344
3345    /**
3346     * Retrieve extended data from the intent.
3347     *
3348     * @param name The name of the desired item.
3349     * @param defaultValue The default value to return in case no item is
3350     * associated with the key 'name'
3351     *
3352     * @return the value of an item that previously added with putExtra()
3353     * or defaultValue if none was found.
3354     *
3355     * @see #putExtra
3356     *
3357     * @deprecated
3358     * @hide
3359     */
3360    @Deprecated
3361    public Object getExtra(String name, Object defaultValue) {
3362        Object result = defaultValue;
3363        if (mExtras != null) {
3364            Object result2 = mExtras.get(name);
3365            if (result2 != null) {
3366                result = result2;
3367            }
3368        }
3369
3370        return result;
3371    }
3372
3373    /**
3374     * Retrieves a map of extended data from the intent.
3375     *
3376     * @return the map of all extras previously added with putExtra(),
3377     * or null if none have been added.
3378     */
3379    public Bundle getExtras() {
3380        return (mExtras != null)
3381                ? new Bundle(mExtras)
3382                : null;
3383    }
3384
3385    /**
3386     * Retrieve any special flags associated with this intent.  You will
3387     * normally just set them with {@link #setFlags} and let the system
3388     * take the appropriate action with them.
3389     *
3390     * @return int The currently set flags.
3391     *
3392     * @see #setFlags
3393     */
3394    public int getFlags() {
3395        return mFlags;
3396    }
3397
3398    /**
3399     * Retrieve the application package name this Intent is limited to.  When
3400     * resolving an Intent, if non-null this limits the resolution to only
3401     * components in the given application package.
3402     *
3403     * @return The name of the application package for the Intent.
3404     *
3405     * @see #resolveActivity
3406     * @see #setPackage
3407     */
3408    public String getPackage() {
3409        return mPackage;
3410    }
3411
3412    /**
3413     * Retrieve the concrete component associated with the intent.  When receiving
3414     * an intent, this is the component that was found to best handle it (that is,
3415     * yourself) and will always be non-null; in all other cases it will be
3416     * null unless explicitly set.
3417     *
3418     * @return The name of the application component to handle the intent.
3419     *
3420     * @see #resolveActivity
3421     * @see #setComponent
3422     */
3423    public ComponentName getComponent() {
3424        return mComponent;
3425    }
3426
3427    /**
3428     * Return the Activity component that should be used to handle this intent.
3429     * The appropriate component is determined based on the information in the
3430     * intent, evaluated as follows:
3431     *
3432     * <p>If {@link #getComponent} returns an explicit class, that is returned
3433     * without any further consideration.
3434     *
3435     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3436     * category to be considered.
3437     *
3438     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3439     * action.
3440     *
3441     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3442     * this type.
3443     *
3444     * <p>If {@link #addCategory} has added any categories, the activity must
3445     * handle ALL of the categories specified.
3446     *
3447     * <p>If {@link #getPackage} is non-NULL, only activity components in
3448     * that application package will be considered.
3449     *
3450     * <p>If there are no activities that satisfy all of these conditions, a
3451     * null string is returned.
3452     *
3453     * <p>If multiple activities are found to satisfy the intent, the one with
3454     * the highest priority will be used.  If there are multiple activities
3455     * with the same priority, the system will either pick the best activity
3456     * based on user preference, or resolve to a system class that will allow
3457     * the user to pick an activity and forward from there.
3458     *
3459     * <p>This method is implemented simply by calling
3460     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3461     * true.</p>
3462     * <p> This API is called for you as part of starting an activity from an
3463     * intent.  You do not normally need to call it yourself.</p>
3464     *
3465     * @param pm The package manager with which to resolve the Intent.
3466     *
3467     * @return Name of the component implementing an activity that can
3468     *         display the intent.
3469     *
3470     * @see #setComponent
3471     * @see #getComponent
3472     * @see #resolveActivityInfo
3473     */
3474    public ComponentName resolveActivity(PackageManager pm) {
3475        if (mComponent != null) {
3476            return mComponent;
3477        }
3478
3479        ResolveInfo info = pm.resolveActivity(
3480            this, PackageManager.MATCH_DEFAULT_ONLY);
3481        if (info != null) {
3482            return new ComponentName(
3483                    info.activityInfo.applicationInfo.packageName,
3484                    info.activityInfo.name);
3485        }
3486
3487        return null;
3488    }
3489
3490    /**
3491     * Resolve the Intent into an {@link ActivityInfo}
3492     * describing the activity that should execute the intent.  Resolution
3493     * follows the same rules as described for {@link #resolveActivity}, but
3494     * you get back the completely information about the resolved activity
3495     * instead of just its class name.
3496     *
3497     * @param pm The package manager with which to resolve the Intent.
3498     * @param flags Addition information to retrieve as per
3499     * {@link PackageManager#getActivityInfo(ComponentName, int)
3500     * PackageManager.getActivityInfo()}.
3501     *
3502     * @return PackageManager.ActivityInfo
3503     *
3504     * @see #resolveActivity
3505     */
3506    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3507        ActivityInfo ai = null;
3508        if (mComponent != null) {
3509            try {
3510                ai = pm.getActivityInfo(mComponent, flags);
3511            } catch (PackageManager.NameNotFoundException e) {
3512                // ignore
3513            }
3514        } else {
3515            ResolveInfo info = pm.resolveActivity(
3516                this, PackageManager.MATCH_DEFAULT_ONLY);
3517            if (info != null) {
3518                ai = info.activityInfo;
3519            }
3520        }
3521
3522        return ai;
3523    }
3524
3525    /**
3526     * Set the general action to be performed.
3527     *
3528     * @param action An action name, such as ACTION_VIEW.  Application-specific
3529     *               actions should be prefixed with the vendor's package name.
3530     *
3531     * @return Returns the same Intent object, for chaining multiple calls
3532     * into a single statement.
3533     *
3534     * @see #getAction
3535     */
3536    public Intent setAction(String action) {
3537        mAction = action;
3538        return this;
3539    }
3540
3541    /**
3542     * Set the data this intent is operating on.  This method automatically
3543     * clears any type that was previously set by {@link #setType}.
3544     *
3545     * <p><em>Note: scheme and host name matching in the Android framework is
3546     * case-sensitive, unlike the formal RFC.  As a result,
3547     * you should always ensure that you write your Uri with these elements
3548     * using lower case letters, and normalize any Uris you receive from
3549     * outside of Android to ensure the scheme and host is lower case.</em></p>
3550     *
3551     * @param data The URI of the data this intent is now targeting.
3552     *
3553     * @return Returns the same Intent object, for chaining multiple calls
3554     * into a single statement.
3555     *
3556     * @see #getData
3557     * @see #setType
3558     * @see #setDataAndType
3559     */
3560    public Intent setData(Uri data) {
3561        mData = data;
3562        mType = null;
3563        return this;
3564    }
3565
3566    /**
3567     * Set an explicit MIME data type.  This is used to create intents that
3568     * only specify a type and not data, for example to indicate the type of
3569     * data to return.  This method automatically clears any data that was
3570     * previously set by {@link #setData}.
3571     *
3572     * <p><em>Note: MIME type matching in the Android framework is
3573     * case-sensitive, unlike formal RFC MIME types.  As a result,
3574     * you should always write your MIME types with lower case letters,
3575     * and any MIME types you receive from outside of Android should be
3576     * converted to lower case before supplying them here.</em></p>
3577     *
3578     * @param type The MIME type of the data being handled by this intent.
3579     *
3580     * @return Returns the same Intent object, for chaining multiple calls
3581     * into a single statement.
3582     *
3583     * @see #getType
3584     * @see #setData
3585     * @see #setDataAndType
3586     */
3587    public Intent setType(String type) {
3588        mData = null;
3589        mType = type;
3590        return this;
3591    }
3592
3593    /**
3594     * (Usually optional) Set the data for the intent along with an explicit
3595     * MIME data type.  This method should very rarely be used -- it allows you
3596     * to override the MIME type that would ordinarily be inferred from the
3597     * data with your own type given here.
3598     *
3599     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
3600     * Android framework is case-sensitive, unlike the formal RFC definitions.
3601     * As a result, you should always write these elements with lower case letters,
3602     * and normalize any MIME types or Uris you receive from
3603     * outside of Android to ensure these elements are lower case before
3604     * supplying them here.</em></p>
3605     *
3606     * @param data The URI of the data this intent is now targeting.
3607     * @param type The MIME type of the data being handled by this intent.
3608     *
3609     * @return Returns the same Intent object, for chaining multiple calls
3610     * into a single statement.
3611     *
3612     * @see #setData
3613     * @see #setType
3614     */
3615    public Intent setDataAndType(Uri data, String type) {
3616        mData = data;
3617        mType = type;
3618        return this;
3619    }
3620
3621    /**
3622     * Add a new category to the intent.  Categories provide additional detail
3623     * about the action the intent is perform.  When resolving an intent, only
3624     * activities that provide <em>all</em> of the requested categories will be
3625     * used.
3626     *
3627     * @param category The desired category.  This can be either one of the
3628     *               predefined Intent categories, or a custom category in your own
3629     *               namespace.
3630     *
3631     * @return Returns the same Intent object, for chaining multiple calls
3632     * into a single statement.
3633     *
3634     * @see #hasCategory
3635     * @see #removeCategory
3636     */
3637    public Intent addCategory(String category) {
3638        if (mCategories == null) {
3639            mCategories = new HashSet<String>();
3640        }
3641        mCategories.add(category);
3642        return this;
3643    }
3644
3645    /**
3646     * Remove an category from an intent.
3647     *
3648     * @param category The category to remove.
3649     *
3650     * @see #addCategory
3651     */
3652    public void removeCategory(String category) {
3653        if (mCategories != null) {
3654            mCategories.remove(category);
3655            if (mCategories.size() == 0) {
3656                mCategories = null;
3657            }
3658        }
3659    }
3660
3661    /**
3662     * Add extended data to the intent.  The name must include a package
3663     * prefix, for example the app com.android.contacts would use names
3664     * like "com.android.contacts.ShowAll".
3665     *
3666     * @param name The name of the extra data, with package prefix.
3667     * @param value The boolean data value.
3668     *
3669     * @return Returns the same Intent object, for chaining multiple calls
3670     * into a single statement.
3671     *
3672     * @see #putExtras
3673     * @see #removeExtra
3674     * @see #getBooleanExtra(String, boolean)
3675     */
3676    public Intent putExtra(String name, boolean value) {
3677        if (mExtras == null) {
3678            mExtras = new Bundle();
3679        }
3680        mExtras.putBoolean(name, value);
3681        return this;
3682    }
3683
3684    /**
3685     * Add extended data to the intent.  The name must include a package
3686     * prefix, for example the app com.android.contacts would use names
3687     * like "com.android.contacts.ShowAll".
3688     *
3689     * @param name The name of the extra data, with package prefix.
3690     * @param value The byte data value.
3691     *
3692     * @return Returns the same Intent object, for chaining multiple calls
3693     * into a single statement.
3694     *
3695     * @see #putExtras
3696     * @see #removeExtra
3697     * @see #getByteExtra(String, byte)
3698     */
3699    public Intent putExtra(String name, byte value) {
3700        if (mExtras == null) {
3701            mExtras = new Bundle();
3702        }
3703        mExtras.putByte(name, value);
3704        return this;
3705    }
3706
3707    /**
3708     * Add extended data to the intent.  The name must include a package
3709     * prefix, for example the app com.android.contacts would use names
3710     * like "com.android.contacts.ShowAll".
3711     *
3712     * @param name The name of the extra data, with package prefix.
3713     * @param value The char data value.
3714     *
3715     * @return Returns the same Intent object, for chaining multiple calls
3716     * into a single statement.
3717     *
3718     * @see #putExtras
3719     * @see #removeExtra
3720     * @see #getCharExtra(String, char)
3721     */
3722    public Intent putExtra(String name, char value) {
3723        if (mExtras == null) {
3724            mExtras = new Bundle();
3725        }
3726        mExtras.putChar(name, value);
3727        return this;
3728    }
3729
3730    /**
3731     * Add extended data to the intent.  The name must include a package
3732     * prefix, for example the app com.android.contacts would use names
3733     * like "com.android.contacts.ShowAll".
3734     *
3735     * @param name The name of the extra data, with package prefix.
3736     * @param value The short data value.
3737     *
3738     * @return Returns the same Intent object, for chaining multiple calls
3739     * into a single statement.
3740     *
3741     * @see #putExtras
3742     * @see #removeExtra
3743     * @see #getShortExtra(String, short)
3744     */
3745    public Intent putExtra(String name, short value) {
3746        if (mExtras == null) {
3747            mExtras = new Bundle();
3748        }
3749        mExtras.putShort(name, value);
3750        return this;
3751    }
3752
3753    /**
3754     * Add extended data to the intent.  The name must include a package
3755     * prefix, for example the app com.android.contacts would use names
3756     * like "com.android.contacts.ShowAll".
3757     *
3758     * @param name The name of the extra data, with package prefix.
3759     * @param value The integer data value.
3760     *
3761     * @return Returns the same Intent object, for chaining multiple calls
3762     * into a single statement.
3763     *
3764     * @see #putExtras
3765     * @see #removeExtra
3766     * @see #getIntExtra(String, int)
3767     */
3768    public Intent putExtra(String name, int value) {
3769        if (mExtras == null) {
3770            mExtras = new Bundle();
3771        }
3772        mExtras.putInt(name, value);
3773        return this;
3774    }
3775
3776    /**
3777     * Add extended data to the intent.  The name must include a package
3778     * prefix, for example the app com.android.contacts would use names
3779     * like "com.android.contacts.ShowAll".
3780     *
3781     * @param name The name of the extra data, with package prefix.
3782     * @param value The long data value.
3783     *
3784     * @return Returns the same Intent object, for chaining multiple calls
3785     * into a single statement.
3786     *
3787     * @see #putExtras
3788     * @see #removeExtra
3789     * @see #getLongExtra(String, long)
3790     */
3791    public Intent putExtra(String name, long value) {
3792        if (mExtras == null) {
3793            mExtras = new Bundle();
3794        }
3795        mExtras.putLong(name, value);
3796        return this;
3797    }
3798
3799    /**
3800     * Add extended data to the intent.  The name must include a package
3801     * prefix, for example the app com.android.contacts would use names
3802     * like "com.android.contacts.ShowAll".
3803     *
3804     * @param name The name of the extra data, with package prefix.
3805     * @param value The float data value.
3806     *
3807     * @return Returns the same Intent object, for chaining multiple calls
3808     * into a single statement.
3809     *
3810     * @see #putExtras
3811     * @see #removeExtra
3812     * @see #getFloatExtra(String, float)
3813     */
3814    public Intent putExtra(String name, float value) {
3815        if (mExtras == null) {
3816            mExtras = new Bundle();
3817        }
3818        mExtras.putFloat(name, value);
3819        return this;
3820    }
3821
3822    /**
3823     * Add extended data to the intent.  The name must include a package
3824     * prefix, for example the app com.android.contacts would use names
3825     * like "com.android.contacts.ShowAll".
3826     *
3827     * @param name The name of the extra data, with package prefix.
3828     * @param value The double data value.
3829     *
3830     * @return Returns the same Intent object, for chaining multiple calls
3831     * into a single statement.
3832     *
3833     * @see #putExtras
3834     * @see #removeExtra
3835     * @see #getDoubleExtra(String, double)
3836     */
3837    public Intent putExtra(String name, double value) {
3838        if (mExtras == null) {
3839            mExtras = new Bundle();
3840        }
3841        mExtras.putDouble(name, value);
3842        return this;
3843    }
3844
3845    /**
3846     * Add extended data to the intent.  The name must include a package
3847     * prefix, for example the app com.android.contacts would use names
3848     * like "com.android.contacts.ShowAll".
3849     *
3850     * @param name The name of the extra data, with package prefix.
3851     * @param value The String data value.
3852     *
3853     * @return Returns the same Intent object, for chaining multiple calls
3854     * into a single statement.
3855     *
3856     * @see #putExtras
3857     * @see #removeExtra
3858     * @see #getStringExtra(String)
3859     */
3860    public Intent putExtra(String name, String value) {
3861        if (mExtras == null) {
3862            mExtras = new Bundle();
3863        }
3864        mExtras.putString(name, value);
3865        return this;
3866    }
3867
3868    /**
3869     * Add extended data to the intent.  The name must include a package
3870     * prefix, for example the app com.android.contacts would use names
3871     * like "com.android.contacts.ShowAll".
3872     *
3873     * @param name The name of the extra data, with package prefix.
3874     * @param value The CharSequence data value.
3875     *
3876     * @return Returns the same Intent object, for chaining multiple calls
3877     * into a single statement.
3878     *
3879     * @see #putExtras
3880     * @see #removeExtra
3881     * @see #getCharSequenceExtra(String)
3882     */
3883    public Intent putExtra(String name, CharSequence value) {
3884        if (mExtras == null) {
3885            mExtras = new Bundle();
3886        }
3887        mExtras.putCharSequence(name, value);
3888        return this;
3889    }
3890
3891    /**
3892     * Add extended data to the intent.  The name must include a package
3893     * prefix, for example the app com.android.contacts would use names
3894     * like "com.android.contacts.ShowAll".
3895     *
3896     * @param name The name of the extra data, with package prefix.
3897     * @param value The Parcelable data value.
3898     *
3899     * @return Returns the same Intent object, for chaining multiple calls
3900     * into a single statement.
3901     *
3902     * @see #putExtras
3903     * @see #removeExtra
3904     * @see #getParcelableExtra(String)
3905     */
3906    public Intent putExtra(String name, Parcelable value) {
3907        if (mExtras == null) {
3908            mExtras = new Bundle();
3909        }
3910        mExtras.putParcelable(name, value);
3911        return this;
3912    }
3913
3914    /**
3915     * Add extended data to the intent.  The name must include a package
3916     * prefix, for example the app com.android.contacts would use names
3917     * like "com.android.contacts.ShowAll".
3918     *
3919     * @param name The name of the extra data, with package prefix.
3920     * @param value The Parcelable[] data value.
3921     *
3922     * @return Returns the same Intent object, for chaining multiple calls
3923     * into a single statement.
3924     *
3925     * @see #putExtras
3926     * @see #removeExtra
3927     * @see #getParcelableArrayExtra(String)
3928     */
3929    public Intent putExtra(String name, Parcelable[] value) {
3930        if (mExtras == null) {
3931            mExtras = new Bundle();
3932        }
3933        mExtras.putParcelableArray(name, value);
3934        return this;
3935    }
3936
3937    /**
3938     * Add extended data to the intent.  The name must include a package
3939     * prefix, for example the app com.android.contacts would use names
3940     * like "com.android.contacts.ShowAll".
3941     *
3942     * @param name The name of the extra data, with package prefix.
3943     * @param value The ArrayList<Parcelable> data value.
3944     *
3945     * @return Returns the same Intent object, for chaining multiple calls
3946     * into a single statement.
3947     *
3948     * @see #putExtras
3949     * @see #removeExtra
3950     * @see #getParcelableArrayListExtra(String)
3951     */
3952    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
3953        if (mExtras == null) {
3954            mExtras = new Bundle();
3955        }
3956        mExtras.putParcelableArrayList(name, value);
3957        return this;
3958    }
3959
3960    /**
3961     * Add extended data to the intent.  The name must include a package
3962     * prefix, for example the app com.android.contacts would use names
3963     * like "com.android.contacts.ShowAll".
3964     *
3965     * @param name The name of the extra data, with package prefix.
3966     * @param value The ArrayList<Integer> data value.
3967     *
3968     * @return Returns the same Intent object, for chaining multiple calls
3969     * into a single statement.
3970     *
3971     * @see #putExtras
3972     * @see #removeExtra
3973     * @see #getIntegerArrayListExtra(String)
3974     */
3975    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
3976        if (mExtras == null) {
3977            mExtras = new Bundle();
3978        }
3979        mExtras.putIntegerArrayList(name, value);
3980        return this;
3981    }
3982
3983    /**
3984     * Add extended data to the intent.  The name must include a package
3985     * prefix, for example the app com.android.contacts would use names
3986     * like "com.android.contacts.ShowAll".
3987     *
3988     * @param name The name of the extra data, with package prefix.
3989     * @param value The ArrayList<String> data value.
3990     *
3991     * @return Returns the same Intent object, for chaining multiple calls
3992     * into a single statement.
3993     *
3994     * @see #putExtras
3995     * @see #removeExtra
3996     * @see #getStringArrayListExtra(String)
3997     */
3998    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
3999        if (mExtras == null) {
4000            mExtras = new Bundle();
4001        }
4002        mExtras.putStringArrayList(name, value);
4003        return this;
4004    }
4005
4006    /**
4007     * Add extended data to the intent.  The name must include a package
4008     * prefix, for example the app com.android.contacts would use names
4009     * like "com.android.contacts.ShowAll".
4010     *
4011     * @param name The name of the extra data, with package prefix.
4012     * @param value The Serializable data value.
4013     *
4014     * @return Returns the same Intent object, for chaining multiple calls
4015     * into a single statement.
4016     *
4017     * @see #putExtras
4018     * @see #removeExtra
4019     * @see #getSerializableExtra(String)
4020     */
4021    public Intent putExtra(String name, Serializable value) {
4022        if (mExtras == null) {
4023            mExtras = new Bundle();
4024        }
4025        mExtras.putSerializable(name, value);
4026        return this;
4027    }
4028
4029    /**
4030     * Add extended data to the intent.  The name must include a package
4031     * prefix, for example the app com.android.contacts would use names
4032     * like "com.android.contacts.ShowAll".
4033     *
4034     * @param name The name of the extra data, with package prefix.
4035     * @param value The boolean array data value.
4036     *
4037     * @return Returns the same Intent object, for chaining multiple calls
4038     * into a single statement.
4039     *
4040     * @see #putExtras
4041     * @see #removeExtra
4042     * @see #getBooleanArrayExtra(String)
4043     */
4044    public Intent putExtra(String name, boolean[] value) {
4045        if (mExtras == null) {
4046            mExtras = new Bundle();
4047        }
4048        mExtras.putBooleanArray(name, value);
4049        return this;
4050    }
4051
4052    /**
4053     * Add extended data to the intent.  The name must include a package
4054     * prefix, for example the app com.android.contacts would use names
4055     * like "com.android.contacts.ShowAll".
4056     *
4057     * @param name The name of the extra data, with package prefix.
4058     * @param value The byte array data value.
4059     *
4060     * @return Returns the same Intent object, for chaining multiple calls
4061     * into a single statement.
4062     *
4063     * @see #putExtras
4064     * @see #removeExtra
4065     * @see #getByteArrayExtra(String)
4066     */
4067    public Intent putExtra(String name, byte[] value) {
4068        if (mExtras == null) {
4069            mExtras = new Bundle();
4070        }
4071        mExtras.putByteArray(name, value);
4072        return this;
4073    }
4074
4075    /**
4076     * Add extended data to the intent.  The name must include a package
4077     * prefix, for example the app com.android.contacts would use names
4078     * like "com.android.contacts.ShowAll".
4079     *
4080     * @param name The name of the extra data, with package prefix.
4081     * @param value The short array data value.
4082     *
4083     * @return Returns the same Intent object, for chaining multiple calls
4084     * into a single statement.
4085     *
4086     * @see #putExtras
4087     * @see #removeExtra
4088     * @see #getShortArrayExtra(String)
4089     */
4090    public Intent putExtra(String name, short[] value) {
4091        if (mExtras == null) {
4092            mExtras = new Bundle();
4093        }
4094        mExtras.putShortArray(name, value);
4095        return this;
4096    }
4097
4098    /**
4099     * Add extended data to the intent.  The name must include a package
4100     * prefix, for example the app com.android.contacts would use names
4101     * like "com.android.contacts.ShowAll".
4102     *
4103     * @param name The name of the extra data, with package prefix.
4104     * @param value The char array data value.
4105     *
4106     * @return Returns the same Intent object, for chaining multiple calls
4107     * into a single statement.
4108     *
4109     * @see #putExtras
4110     * @see #removeExtra
4111     * @see #getCharArrayExtra(String)
4112     */
4113    public Intent putExtra(String name, char[] value) {
4114        if (mExtras == null) {
4115            mExtras = new Bundle();
4116        }
4117        mExtras.putCharArray(name, value);
4118        return this;
4119    }
4120
4121    /**
4122     * Add extended data to the intent.  The name must include a package
4123     * prefix, for example the app com.android.contacts would use names
4124     * like "com.android.contacts.ShowAll".
4125     *
4126     * @param name The name of the extra data, with package prefix.
4127     * @param value The int array data value.
4128     *
4129     * @return Returns the same Intent object, for chaining multiple calls
4130     * into a single statement.
4131     *
4132     * @see #putExtras
4133     * @see #removeExtra
4134     * @see #getIntArrayExtra(String)
4135     */
4136    public Intent putExtra(String name, int[] value) {
4137        if (mExtras == null) {
4138            mExtras = new Bundle();
4139        }
4140        mExtras.putIntArray(name, value);
4141        return this;
4142    }
4143
4144    /**
4145     * Add extended data to the intent.  The name must include a package
4146     * prefix, for example the app com.android.contacts would use names
4147     * like "com.android.contacts.ShowAll".
4148     *
4149     * @param name The name of the extra data, with package prefix.
4150     * @param value The byte array data value.
4151     *
4152     * @return Returns the same Intent object, for chaining multiple calls
4153     * into a single statement.
4154     *
4155     * @see #putExtras
4156     * @see #removeExtra
4157     * @see #getLongArrayExtra(String)
4158     */
4159    public Intent putExtra(String name, long[] value) {
4160        if (mExtras == null) {
4161            mExtras = new Bundle();
4162        }
4163        mExtras.putLongArray(name, value);
4164        return this;
4165    }
4166
4167    /**
4168     * Add extended data to the intent.  The name must include a package
4169     * prefix, for example the app com.android.contacts would use names
4170     * like "com.android.contacts.ShowAll".
4171     *
4172     * @param name The name of the extra data, with package prefix.
4173     * @param value The float array data value.
4174     *
4175     * @return Returns the same Intent object, for chaining multiple calls
4176     * into a single statement.
4177     *
4178     * @see #putExtras
4179     * @see #removeExtra
4180     * @see #getFloatArrayExtra(String)
4181     */
4182    public Intent putExtra(String name, float[] value) {
4183        if (mExtras == null) {
4184            mExtras = new Bundle();
4185        }
4186        mExtras.putFloatArray(name, value);
4187        return this;
4188    }
4189
4190    /**
4191     * Add extended data to the intent.  The name must include a package
4192     * prefix, for example the app com.android.contacts would use names
4193     * like "com.android.contacts.ShowAll".
4194     *
4195     * @param name The name of the extra data, with package prefix.
4196     * @param value The double array data value.
4197     *
4198     * @return Returns the same Intent object, for chaining multiple calls
4199     * into a single statement.
4200     *
4201     * @see #putExtras
4202     * @see #removeExtra
4203     * @see #getDoubleArrayExtra(String)
4204     */
4205    public Intent putExtra(String name, double[] value) {
4206        if (mExtras == null) {
4207            mExtras = new Bundle();
4208        }
4209        mExtras.putDoubleArray(name, value);
4210        return this;
4211    }
4212
4213    /**
4214     * Add extended data to the intent.  The name must include a package
4215     * prefix, for example the app com.android.contacts would use names
4216     * like "com.android.contacts.ShowAll".
4217     *
4218     * @param name The name of the extra data, with package prefix.
4219     * @param value The String array data value.
4220     *
4221     * @return Returns the same Intent object, for chaining multiple calls
4222     * into a single statement.
4223     *
4224     * @see #putExtras
4225     * @see #removeExtra
4226     * @see #getStringArrayExtra(String)
4227     */
4228    public Intent putExtra(String name, String[] value) {
4229        if (mExtras == null) {
4230            mExtras = new Bundle();
4231        }
4232        mExtras.putStringArray(name, value);
4233        return this;
4234    }
4235
4236    /**
4237     * Add extended data to the intent.  The name must include a package
4238     * prefix, for example the app com.android.contacts would use names
4239     * like "com.android.contacts.ShowAll".
4240     *
4241     * @param name The name of the extra data, with package prefix.
4242     * @param value The Bundle data value.
4243     *
4244     * @return Returns the same Intent object, for chaining multiple calls
4245     * into a single statement.
4246     *
4247     * @see #putExtras
4248     * @see #removeExtra
4249     * @see #getBundleExtra(String)
4250     */
4251    public Intent putExtra(String name, Bundle value) {
4252        if (mExtras == null) {
4253            mExtras = new Bundle();
4254        }
4255        mExtras.putBundle(name, value);
4256        return this;
4257    }
4258
4259    /**
4260     * Add extended data to the intent.  The name must include a package
4261     * prefix, for example the app com.android.contacts would use names
4262     * like "com.android.contacts.ShowAll".
4263     *
4264     * @param name The name of the extra data, with package prefix.
4265     * @param value The IBinder data value.
4266     *
4267     * @return Returns the same Intent object, for chaining multiple calls
4268     * into a single statement.
4269     *
4270     * @see #putExtras
4271     * @see #removeExtra
4272     * @see #getIBinderExtra(String)
4273     *
4274     * @deprecated
4275     * @hide
4276     */
4277    @Deprecated
4278    public Intent putExtra(String name, IBinder value) {
4279        if (mExtras == null) {
4280            mExtras = new Bundle();
4281        }
4282        mExtras.putIBinder(name, value);
4283        return this;
4284    }
4285
4286    /**
4287     * Copy all extras in 'src' in to this intent.
4288     *
4289     * @param src Contains the extras to copy.
4290     *
4291     * @see #putExtra
4292     */
4293    public Intent putExtras(Intent src) {
4294        if (src.mExtras != null) {
4295            if (mExtras == null) {
4296                mExtras = new Bundle(src.mExtras);
4297            } else {
4298                mExtras.putAll(src.mExtras);
4299            }
4300        }
4301        return this;
4302    }
4303
4304    /**
4305     * Add a set of extended data to the intent.  The keys must include a package
4306     * prefix, for example the app com.android.contacts would use names
4307     * like "com.android.contacts.ShowAll".
4308     *
4309     * @param extras The Bundle of extras to add to this intent.
4310     *
4311     * @see #putExtra
4312     * @see #removeExtra
4313     */
4314    public Intent putExtras(Bundle extras) {
4315        if (mExtras == null) {
4316            mExtras = new Bundle();
4317        }
4318        mExtras.putAll(extras);
4319        return this;
4320    }
4321
4322    /**
4323     * Completely replace the extras in the Intent with the extras in the
4324     * given Intent.
4325     *
4326     * @param src The exact extras contained in this Intent are copied
4327     * into the target intent, replacing any that were previously there.
4328     */
4329    public Intent replaceExtras(Intent src) {
4330        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4331        return this;
4332    }
4333
4334    /**
4335     * Completely replace the extras in the Intent with the given Bundle of
4336     * extras.
4337     *
4338     * @param extras The new set of extras in the Intent, or null to erase
4339     * all extras.
4340     */
4341    public Intent replaceExtras(Bundle extras) {
4342        mExtras = extras != null ? new Bundle(extras) : null;
4343        return this;
4344    }
4345
4346    /**
4347     * Remove extended data from the intent.
4348     *
4349     * @see #putExtra
4350     */
4351    public void removeExtra(String name) {
4352        if (mExtras != null) {
4353            mExtras.remove(name);
4354            if (mExtras.size() == 0) {
4355                mExtras = null;
4356            }
4357        }
4358    }
4359
4360    /**
4361     * Set special flags controlling how this intent is handled.  Most values
4362     * here depend on the type of component being executed by the Intent,
4363     * specifically the FLAG_ACTIVITY_* flags are all for use with
4364     * {@link Context#startActivity Context.startActivity()} and the
4365     * FLAG_RECEIVER_* flags are all for use with
4366     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4367     *
4368     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4369     * Activities and Tasks</a> documentation for important information on how some of these options impact
4370     * the behavior of your application.
4371     *
4372     * @param flags The desired flags.
4373     *
4374     * @return Returns the same Intent object, for chaining multiple calls
4375     * into a single statement.
4376     *
4377     * @see #getFlags
4378     * @see #addFlags
4379     *
4380     * @see #FLAG_GRANT_READ_URI_PERMISSION
4381     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4382     * @see #FLAG_DEBUG_LOG_RESOLUTION
4383     * @see #FLAG_FROM_BACKGROUND
4384     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4385     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4386     * @see #FLAG_ACTIVITY_CLEAR_TOP
4387     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4388     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4389     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4390     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4391     * @see #FLAG_ACTIVITY_NEW_TASK
4392     * @see #FLAG_ACTIVITY_NO_HISTORY
4393     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4394     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4395     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4396     * @see #FLAG_ACTIVITY_SINGLE_TOP
4397     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4398     */
4399    public Intent setFlags(int flags) {
4400        mFlags = flags;
4401        return this;
4402    }
4403
4404    /**
4405     * Add additional flags to the intent (or with existing flags
4406     * value).
4407     *
4408     * @param flags The new flags to set.
4409     *
4410     * @return Returns the same Intent object, for chaining multiple calls
4411     * into a single statement.
4412     *
4413     * @see #setFlags
4414     */
4415    public Intent addFlags(int flags) {
4416        mFlags |= flags;
4417        return this;
4418    }
4419
4420    /**
4421     * (Usually optional) Set an explicit application package name that limits
4422     * the components this Intent will resolve to.  If left to the default
4423     * value of null, all components in all applications will considered.
4424     * If non-null, the Intent can only match the components in the given
4425     * application package.
4426     *
4427     * @param packageName The name of the application package to handle the
4428     * intent, or null to allow any application package.
4429     *
4430     * @return Returns the same Intent object, for chaining multiple calls
4431     * into a single statement.
4432     *
4433     * @see #getPackage
4434     * @see #resolveActivity
4435     */
4436    public Intent setPackage(String packageName) {
4437        mPackage = packageName;
4438        return this;
4439    }
4440
4441    /**
4442     * (Usually optional) Explicitly set the component to handle the intent.
4443     * If left with the default value of null, the system will determine the
4444     * appropriate class to use based on the other fields (action, data,
4445     * type, categories) in the Intent.  If this class is defined, the
4446     * specified class will always be used regardless of the other fields.  You
4447     * should only set this value when you know you absolutely want a specific
4448     * class to be used; otherwise it is better to let the system find the
4449     * appropriate class so that you will respect the installed applications
4450     * and user preferences.
4451     *
4452     * @param component The name of the application component to handle the
4453     * intent, or null to let the system find one for you.
4454     *
4455     * @return Returns the same Intent object, for chaining multiple calls
4456     * into a single statement.
4457     *
4458     * @see #setClass
4459     * @see #setClassName(Context, String)
4460     * @see #setClassName(String, String)
4461     * @see #getComponent
4462     * @see #resolveActivity
4463     */
4464    public Intent setComponent(ComponentName component) {
4465        mComponent = component;
4466        return this;
4467    }
4468
4469    /**
4470     * Convenience for calling {@link #setComponent} with an
4471     * explicit class name.
4472     *
4473     * @param packageContext A Context of the application package implementing
4474     * this class.
4475     * @param className The name of a class inside of the application package
4476     * that will be used as the component for this Intent.
4477     *
4478     * @return Returns the same Intent object, for chaining multiple calls
4479     * into a single statement.
4480     *
4481     * @see #setComponent
4482     * @see #setClass
4483     */
4484    public Intent setClassName(Context packageContext, String className) {
4485        mComponent = new ComponentName(packageContext, className);
4486        return this;
4487    }
4488
4489    /**
4490     * Convenience for calling {@link #setComponent} with an
4491     * explicit application package name and class name.
4492     *
4493     * @param packageName The name of the package implementing the desired
4494     * component.
4495     * @param className The name of a class inside of the application package
4496     * that will be used as the component for this Intent.
4497     *
4498     * @return Returns the same Intent object, for chaining multiple calls
4499     * into a single statement.
4500     *
4501     * @see #setComponent
4502     * @see #setClass
4503     */
4504    public Intent setClassName(String packageName, String className) {
4505        mComponent = new ComponentName(packageName, className);
4506        return this;
4507    }
4508
4509    /**
4510     * Convenience for calling {@link #setComponent(ComponentName)} with the
4511     * name returned by a {@link Class} object.
4512     *
4513     * @param packageContext A Context of the application package implementing
4514     * this class.
4515     * @param cls The class name to set, equivalent to
4516     *            <code>setClassName(context, cls.getName())</code>.
4517     *
4518     * @return Returns the same Intent object, for chaining multiple calls
4519     * into a single statement.
4520     *
4521     * @see #setComponent
4522     */
4523    public Intent setClass(Context packageContext, Class<?> cls) {
4524        mComponent = new ComponentName(packageContext, cls);
4525        return this;
4526    }
4527
4528    /**
4529     * Use with {@link #fillIn} to allow the current action value to be
4530     * overwritten, even if it is already set.
4531     */
4532    public static final int FILL_IN_ACTION = 1<<0;
4533
4534    /**
4535     * Use with {@link #fillIn} to allow the current data or type value
4536     * overwritten, even if it is already set.
4537     */
4538    public static final int FILL_IN_DATA = 1<<1;
4539
4540    /**
4541     * Use with {@link #fillIn} to allow the current categories to be
4542     * overwritten, even if they are already set.
4543     */
4544    public static final int FILL_IN_CATEGORIES = 1<<2;
4545
4546    /**
4547     * Use with {@link #fillIn} to allow the current component value to be
4548     * overwritten, even if it is already set.
4549     */
4550    public static final int FILL_IN_COMPONENT = 1<<3;
4551
4552    /**
4553     * Use with {@link #fillIn} to allow the current package value to be
4554     * overwritten, even if it is already set.
4555     */
4556    public static final int FILL_IN_PACKAGE = 1<<4;
4557
4558    /**
4559     * Copy the contents of <var>other</var> in to this object, but only
4560     * where fields are not defined by this object.  For purposes of a field
4561     * being defined, the following pieces of data in the Intent are
4562     * considered to be separate fields:
4563     *
4564     * <ul>
4565     * <li> action, as set by {@link #setAction}.
4566     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4567     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4568     * <li> categories, as set by {@link #addCategory}.
4569     * <li> package, as set by {@link #setPackage}.
4570     * <li> component, as set by {@link #setComponent(ComponentName)} or
4571     * related methods.
4572     * <li> each top-level name in the associated extras.
4573     * </ul>
4574     *
4575     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4576     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4577     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
4578     * corresponding field will not be replaced if it is already set.
4579     *
4580     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
4581     * specified.
4582     *
4583     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4584     * and Intent B with {action="gotit", data-type="some/thing",
4585     * categories="one","two"}.
4586     *
4587     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4588     * containing: {action="gotit", data-type="some/thing",
4589     * categories="bar"}.
4590     *
4591     * @param other Another Intent whose values are to be used to fill in
4592     * the current one.
4593     * @param flags Options to control which fields can be filled in.
4594     *
4595     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4596     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4597     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4598     */
4599    public int fillIn(Intent other, int flags) {
4600        int changes = 0;
4601        if (other.mAction != null
4602                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
4603            mAction = other.mAction;
4604            changes |= FILL_IN_ACTION;
4605        }
4606        if ((other.mData != null || other.mType != null)
4607                && ((mData == null && mType == null)
4608                        || (flags&FILL_IN_DATA) != 0)) {
4609            mData = other.mData;
4610            mType = other.mType;
4611            changes |= FILL_IN_DATA;
4612        }
4613        if (other.mCategories != null
4614                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
4615            if (other.mCategories != null) {
4616                mCategories = new HashSet<String>(other.mCategories);
4617            }
4618            changes |= FILL_IN_CATEGORIES;
4619        }
4620        if (other.mPackage != null
4621                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
4622            mPackage = other.mPackage;
4623            changes |= FILL_IN_PACKAGE;
4624        }
4625        // Component is special: it can -only- be set if explicitly allowed,
4626        // since otherwise the sender could force the intent somewhere the
4627        // originator didn't intend.
4628        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
4629            mComponent = other.mComponent;
4630            changes |= FILL_IN_COMPONENT;
4631        }
4632        mFlags |= other.mFlags;
4633        if (mExtras == null) {
4634            if (other.mExtras != null) {
4635                mExtras = new Bundle(other.mExtras);
4636            }
4637        } else if (other.mExtras != null) {
4638            try {
4639                Bundle newb = new Bundle(other.mExtras);
4640                newb.putAll(mExtras);
4641                mExtras = newb;
4642            } catch (RuntimeException e) {
4643                // Modifying the extras can cause us to unparcel the contents
4644                // of the bundle, and if we do this in the system process that
4645                // may fail.  We really should handle this (i.e., the Bundle
4646                // impl shouldn't be on top of a plain map), but for now just
4647                // ignore it and keep the original contents. :(
4648                Log.w("Intent", "Failure filling in extras", e);
4649            }
4650        }
4651        return changes;
4652    }
4653
4654    /**
4655     * Wrapper class holding an Intent and implementing comparisons on it for
4656     * the purpose of filtering.  The class implements its
4657     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4658     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4659     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4660     * on the wrapped Intent.
4661     */
4662    public static final class FilterComparison {
4663        private final Intent mIntent;
4664        private final int mHashCode;
4665
4666        public FilterComparison(Intent intent) {
4667            mIntent = intent;
4668            mHashCode = intent.filterHashCode();
4669        }
4670
4671        /**
4672         * Return the Intent that this FilterComparison represents.
4673         * @return Returns the Intent held by the FilterComparison.  Do
4674         * not modify!
4675         */
4676        public Intent getIntent() {
4677            return mIntent;
4678        }
4679
4680        @Override
4681        public boolean equals(Object obj) {
4682            if (obj instanceof FilterComparison) {
4683                Intent other = ((FilterComparison)obj).mIntent;
4684                return mIntent.filterEquals(other);
4685            }
4686            return false;
4687        }
4688
4689        @Override
4690        public int hashCode() {
4691            return mHashCode;
4692        }
4693    }
4694
4695    /**
4696     * Determine if two intents are the same for the purposes of intent
4697     * resolution (filtering). That is, if their action, data, type,
4698     * class, and categories are the same.  This does <em>not</em> compare
4699     * any extra data included in the intents.
4700     *
4701     * @param other The other Intent to compare against.
4702     *
4703     * @return Returns true if action, data, type, class, and categories
4704     *         are the same.
4705     */
4706    public boolean filterEquals(Intent other) {
4707        if (other == null) {
4708            return false;
4709        }
4710        if (mAction != other.mAction) {
4711            if (mAction != null) {
4712                if (!mAction.equals(other.mAction)) {
4713                    return false;
4714                }
4715            } else {
4716                if (!other.mAction.equals(mAction)) {
4717                    return false;
4718                }
4719            }
4720        }
4721        if (mData != other.mData) {
4722            if (mData != null) {
4723                if (!mData.equals(other.mData)) {
4724                    return false;
4725                }
4726            } else {
4727                if (!other.mData.equals(mData)) {
4728                    return false;
4729                }
4730            }
4731        }
4732        if (mType != other.mType) {
4733            if (mType != null) {
4734                if (!mType.equals(other.mType)) {
4735                    return false;
4736                }
4737            } else {
4738                if (!other.mType.equals(mType)) {
4739                    return false;
4740                }
4741            }
4742        }
4743        if (mPackage != other.mPackage) {
4744            if (mPackage != null) {
4745                if (!mPackage.equals(other.mPackage)) {
4746                    return false;
4747                }
4748            } else {
4749                if (!other.mPackage.equals(mPackage)) {
4750                    return false;
4751                }
4752            }
4753        }
4754        if (mComponent != other.mComponent) {
4755            if (mComponent != null) {
4756                if (!mComponent.equals(other.mComponent)) {
4757                    return false;
4758                }
4759            } else {
4760                if (!other.mComponent.equals(mComponent)) {
4761                    return false;
4762                }
4763            }
4764        }
4765        if (mCategories != other.mCategories) {
4766            if (mCategories != null) {
4767                if (!mCategories.equals(other.mCategories)) {
4768                    return false;
4769                }
4770            } else {
4771                if (!other.mCategories.equals(mCategories)) {
4772                    return false;
4773                }
4774            }
4775        }
4776
4777        return true;
4778    }
4779
4780    /**
4781     * Generate hash code that matches semantics of filterEquals().
4782     *
4783     * @return Returns the hash value of the action, data, type, class, and
4784     *         categories.
4785     *
4786     * @see #filterEquals
4787     */
4788    public int filterHashCode() {
4789        int code = 0;
4790        if (mAction != null) {
4791            code += mAction.hashCode();
4792        }
4793        if (mData != null) {
4794            code += mData.hashCode();
4795        }
4796        if (mType != null) {
4797            code += mType.hashCode();
4798        }
4799        if (mPackage != null) {
4800            code += mPackage.hashCode();
4801        }
4802        if (mComponent != null) {
4803            code += mComponent.hashCode();
4804        }
4805        if (mCategories != null) {
4806            code += mCategories.hashCode();
4807        }
4808        return code;
4809    }
4810
4811    @Override
4812    public String toString() {
4813        StringBuilder   b = new StringBuilder(128);
4814
4815        b.append("Intent { ");
4816        toShortString(b, true, true);
4817        b.append(" }");
4818
4819        return b.toString();
4820    }
4821
4822    /** @hide */
4823    public String toShortString(boolean comp, boolean extras) {
4824        StringBuilder   b = new StringBuilder(128);
4825        toShortString(b, comp, extras);
4826        return b.toString();
4827    }
4828
4829    /** @hide */
4830    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
4831        boolean first = true;
4832        if (mAction != null) {
4833            b.append("act=").append(mAction);
4834            first = false;
4835        }
4836        if (mCategories != null) {
4837            if (!first) {
4838                b.append(' ');
4839            }
4840            first = false;
4841            b.append("cat=[");
4842            Iterator<String> i = mCategories.iterator();
4843            boolean didone = false;
4844            while (i.hasNext()) {
4845                if (didone) b.append(",");
4846                didone = true;
4847                b.append(i.next());
4848            }
4849            b.append("]");
4850        }
4851        if (mData != null) {
4852            if (!first) {
4853                b.append(' ');
4854            }
4855            first = false;
4856            b.append("dat=").append(mData);
4857        }
4858        if (mType != null) {
4859            if (!first) {
4860                b.append(' ');
4861            }
4862            first = false;
4863            b.append("typ=").append(mType);
4864        }
4865        if (mFlags != 0) {
4866            if (!first) {
4867                b.append(' ');
4868            }
4869            first = false;
4870            b.append("flg=0x").append(Integer.toHexString(mFlags));
4871        }
4872        if (mPackage != null) {
4873            if (!first) {
4874                b.append(' ');
4875            }
4876            first = false;
4877            b.append("pkg=").append(mPackage);
4878        }
4879        if (comp && mComponent != null) {
4880            if (!first) {
4881                b.append(' ');
4882            }
4883            first = false;
4884            b.append("cmp=").append(mComponent.flattenToShortString());
4885        }
4886        if (extras && mExtras != null) {
4887            if (!first) {
4888                b.append(' ');
4889            }
4890            first = false;
4891            b.append("(has extras)");
4892        }
4893    }
4894
4895    /**
4896     * Call {@link #toUri} with 0 flags.
4897     * @deprecated Use {@link #toUri} instead.
4898     */
4899    @Deprecated
4900    public String toURI() {
4901        return toUri(0);
4902    }
4903
4904    /**
4905     * Convert this Intent into a String holding a URI representation of it.
4906     * The returned URI string has been properly URI encoded, so it can be
4907     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
4908     * Intent's data as the base URI, with an additional fragment describing
4909     * the action, categories, type, flags, package, component, and extras.
4910     *
4911     * <p>You can convert the returned string back to an Intent with
4912     * {@link #getIntent}.
4913     *
4914     * @param flags Additional operating flags.  Either 0 or
4915     * {@link #URI_INTENT_SCHEME}.
4916     *
4917     * @return Returns a URI encoding URI string describing the entire contents
4918     * of the Intent.
4919     */
4920    public String toUri(int flags) {
4921        StringBuilder uri = new StringBuilder(128);
4922        String scheme = null;
4923        if (mData != null) {
4924            String data = mData.toString();
4925            if ((flags&URI_INTENT_SCHEME) != 0) {
4926                final int N = data.length();
4927                for (int i=0; i<N; i++) {
4928                    char c = data.charAt(i);
4929                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
4930                            || c == '.' || c == '-') {
4931                        continue;
4932                    }
4933                    if (c == ':' && i > 0) {
4934                        // Valid scheme.
4935                        scheme = data.substring(0, i);
4936                        uri.append("intent:");
4937                        data = data.substring(i+1);
4938                        break;
4939                    }
4940
4941                    // No scheme.
4942                    break;
4943                }
4944            }
4945            uri.append(data);
4946
4947        } else if ((flags&URI_INTENT_SCHEME) != 0) {
4948            uri.append("intent:");
4949        }
4950
4951        uri.append("#Intent;");
4952
4953        if (scheme != null) {
4954            uri.append("scheme=").append(scheme).append(';');
4955        }
4956        if (mAction != null) {
4957            uri.append("action=").append(Uri.encode(mAction)).append(';');
4958        }
4959        if (mCategories != null) {
4960            for (String category : mCategories) {
4961                uri.append("category=").append(Uri.encode(category)).append(';');
4962            }
4963        }
4964        if (mType != null) {
4965            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
4966        }
4967        if (mFlags != 0) {
4968            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
4969        }
4970        if (mPackage != null) {
4971            uri.append("package=").append(Uri.encode(mPackage)).append(';');
4972        }
4973        if (mComponent != null) {
4974            uri.append("component=").append(Uri.encode(
4975                    mComponent.flattenToShortString(), "/")).append(';');
4976        }
4977        if (mExtras != null) {
4978            for (String key : mExtras.keySet()) {
4979                final Object value = mExtras.get(key);
4980                char entryType =
4981                        value instanceof String    ? 'S' :
4982                        value instanceof Boolean   ? 'B' :
4983                        value instanceof Byte      ? 'b' :
4984                        value instanceof Character ? 'c' :
4985                        value instanceof Double    ? 'd' :
4986                        value instanceof Float     ? 'f' :
4987                        value instanceof Integer   ? 'i' :
4988                        value instanceof Long      ? 'l' :
4989                        value instanceof Short     ? 's' :
4990                        '\0';
4991
4992                if (entryType != '\0') {
4993                    uri.append(entryType);
4994                    uri.append('.');
4995                    uri.append(Uri.encode(key));
4996                    uri.append('=');
4997                    uri.append(Uri.encode(value.toString()));
4998                    uri.append(';');
4999                }
5000            }
5001        }
5002
5003        uri.append("end");
5004
5005        return uri.toString();
5006    }
5007
5008    public int describeContents() {
5009        return (mExtras != null) ? mExtras.describeContents() : 0;
5010    }
5011
5012    public void writeToParcel(Parcel out, int flags) {
5013        out.writeString(mAction);
5014        Uri.writeToParcel(out, mData);
5015        out.writeString(mType);
5016        out.writeInt(mFlags);
5017        out.writeString(mPackage);
5018        ComponentName.writeToParcel(mComponent, out);
5019
5020        if (mCategories != null) {
5021            out.writeInt(mCategories.size());
5022            for (String category : mCategories) {
5023                out.writeString(category);
5024            }
5025        } else {
5026            out.writeInt(0);
5027        }
5028
5029        out.writeBundle(mExtras);
5030    }
5031
5032    public static final Parcelable.Creator<Intent> CREATOR
5033            = new Parcelable.Creator<Intent>() {
5034        public Intent createFromParcel(Parcel in) {
5035            return new Intent(in);
5036        }
5037        public Intent[] newArray(int size) {
5038            return new Intent[size];
5039        }
5040    };
5041
5042    private Intent(Parcel in) {
5043        readFromParcel(in);
5044    }
5045
5046    public void readFromParcel(Parcel in) {
5047        mAction = in.readString();
5048        mData = Uri.CREATOR.createFromParcel(in);
5049        mType = in.readString();
5050        mFlags = in.readInt();
5051        mPackage = in.readString();
5052        mComponent = ComponentName.readFromParcel(in);
5053
5054        int N = in.readInt();
5055        if (N > 0) {
5056            mCategories = new HashSet<String>();
5057            int i;
5058            for (i=0; i<N; i++) {
5059                mCategories.add(in.readString());
5060            }
5061        } else {
5062            mCategories = null;
5063        }
5064
5065        mExtras = in.readBundle();
5066    }
5067
5068    /**
5069     * Parses the "intent" element (and its children) from XML and instantiates
5070     * an Intent object.  The given XML parser should be located at the tag
5071     * where parsing should start (often named "intent"), from which the
5072     * basic action, data, type, and package and class name will be
5073     * retrieved.  The function will then parse in to any child elements,
5074     * looking for <category android:name="xxx"> tags to add categories and
5075     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5076     * to the intent.
5077     *
5078     * @param resources The Resources to use when inflating resources.
5079     * @param parser The XML parser pointing at an "intent" tag.
5080     * @param attrs The AttributeSet interface for retrieving extended
5081     * attribute data at the current <var>parser</var> location.
5082     * @return An Intent object matching the XML data.
5083     * @throws XmlPullParserException If there was an XML parsing error.
5084     * @throws IOException If there was an I/O error.
5085     */
5086    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5087            throws XmlPullParserException, IOException {
5088        Intent intent = new Intent();
5089
5090        TypedArray sa = resources.obtainAttributes(attrs,
5091                com.android.internal.R.styleable.Intent);
5092
5093        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5094
5095        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5096        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5097        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5098
5099        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5100        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5101        if (packageName != null && className != null) {
5102            intent.setComponent(new ComponentName(packageName, className));
5103        }
5104
5105        sa.recycle();
5106
5107        int outerDepth = parser.getDepth();
5108        int type;
5109        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5110               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5111            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5112                continue;
5113            }
5114
5115            String nodeName = parser.getName();
5116            if (nodeName.equals("category")) {
5117                sa = resources.obtainAttributes(attrs,
5118                        com.android.internal.R.styleable.IntentCategory);
5119                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5120                sa.recycle();
5121
5122                if (cat != null) {
5123                    intent.addCategory(cat);
5124                }
5125                XmlUtils.skipCurrentTag(parser);
5126
5127            } else if (nodeName.equals("extra")) {
5128                if (intent.mExtras == null) {
5129                    intent.mExtras = new Bundle();
5130                }
5131                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5132                XmlUtils.skipCurrentTag(parser);
5133
5134            } else {
5135                XmlUtils.skipCurrentTag(parser);
5136            }
5137        }
5138
5139        return intent;
5140    }
5141}
5142