Intent.java revision fa82f22f1d8c4c828bdf9b670006be4f4fec772e
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.content;
18
19import org.xmlpull.v1.XmlPullParser;
20import org.xmlpull.v1.XmlPullParserException;
21
22import android.annotation.SdkConstant;
23import android.annotation.SdkConstant.SdkConstantType;
24import android.content.pm.ActivityInfo;
25import android.content.pm.PackageManager;
26import android.content.pm.ResolveInfo;
27import android.content.res.Resources;
28import android.content.res.TypedArray;
29import android.net.Uri;
30import android.os.Bundle;
31import android.os.IBinder;
32import android.os.Parcel;
33import android.os.Parcelable;
34import android.util.AttributeSet;
35import android.util.Log;
36import com.android.internal.util.XmlUtils;
37
38import java.io.IOException;
39import java.io.Serializable;
40import java.net.URISyntaxException;
41import java.util.ArrayList;
42import java.util.HashSet;
43import java.util.Iterator;
44import java.util.Set;
45
46/**
47 * An intent is an abstract description of an operation to be performed.  It
48 * can be used with {@link Context#startActivity(Intent) startActivity} to
49 * launch an {@link android.app.Activity},
50 * {@link android.content.Context#sendBroadcast(Intent) broadcastIntent} to
51 * send it to any interested {@link BroadcastReceiver BroadcastReceiver} components,
52 * and {@link android.content.Context#startService} or
53 * {@link android.content.Context#bindService} to communicate with a
54 * background {@link android.app.Service}.
55 *
56 * <p>An Intent provides a facility for performing late runtime binding between
57 * the code in different applications.  Its most significant use is in the
58 * launching of activities, where it can be thought of as the glue between
59 * activities. It is
60 * basically a passive data structure holding an abstract description of an
61 * action to be performed. The primary pieces of information in an intent
62 * are:</p>
63 *
64 * <ul>
65 *   <li> <p><b>action</b> -- The general action to be performed, such as
66 *     {@link #ACTION_VIEW}, {@link #ACTION_EDIT}, {@link #ACTION_MAIN},
67 *     etc.</p>
68 *   </li>
69 *   <li> <p><b>data</b> -- The data to operate on, such as a person record
70 *     in the contacts database, expressed as a {@link android.net.Uri}.</p>
71 *   </li>
72 * </ul>
73 *
74 *
75 * <p>Some examples of action/data pairs are:</p>
76 *
77 * <ul>
78 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/1</i></b> -- Display
79 *     information about the person whose identifier is "1".</p>
80 *   </li>
81 *   <li> <p><b>{@link #ACTION_DIAL} <i>content://contacts/people/1</i></b> -- Display
82 *     the phone dialer with the person filled in.</p>
83 *   </li>
84 *   <li> <p><b>{@link #ACTION_VIEW} <i>tel:123</i></b> -- Display
85 *     the phone dialer with the given number filled in.  Note how the
86 *     VIEW action does what what is considered the most reasonable thing for
87 *     a particular URI.</p>
88 *   </li>
89 *   <li> <p><b>{@link #ACTION_DIAL} <i>tel:123</i></b> -- Display
90 *     the phone dialer with the given number filled in.</p>
91 *   </li>
92 *   <li> <p><b>{@link #ACTION_EDIT} <i>content://contacts/people/1</i></b> -- Edit
93 *     information about the person whose identifier is "1".</p>
94 *   </li>
95 *   <li> <p><b>{@link #ACTION_VIEW} <i>content://contacts/people/</i></b> -- Display
96 *     a list of people, which the user can browse through.  This example is a
97 *     typical top-level entry into the Contacts application, showing you the
98 *     list of people. Selecting a particular person to view would result in a
99 *     new intent { <b>{@link #ACTION_VIEW} <i>content://contacts/N</i></b> }
100 *     being used to start an activity to display that person.</p>
101 *   </li>
102 * </ul>
103 *
104 * <p>In addition to these primary attributes, there are a number of secondary
105 * attributes that you can also include with an intent:</p>
106 *
107 * <ul>
108 *     <li> <p><b>category</b> -- Gives additional information about the action
109 *         to execute.  For example, {@link #CATEGORY_LAUNCHER} means it should
110 *         appear in the Launcher as a top-level application, while
111 *         {@link #CATEGORY_ALTERNATIVE} means it should be included in a list
112 *         of alternative actions the user can perform on a piece of data.</p>
113 *     <li> <p><b>type</b> -- Specifies an explicit type (a MIME type) of the
114 *         intent data.  Normally the type is inferred from the data itself.
115 *         By setting this attribute, you disable that evaluation and force
116 *         an explicit type.</p>
117 *     <li> <p><b>component</b> -- Specifies an explicit name of a component
118 *         class to use for the intent.  Normally this is determined by looking
119 *         at the other information in the intent (the action, data/type, and
120 *         categories) and matching that with a component that can handle it.
121 *         If this attribute is set then none of the evaluation is performed,
122 *         and this component is used exactly as is.  By specifying this attribute,
123 *         all of the other Intent attributes become optional.</p>
124 *     <li> <p><b>extras</b> -- This is a {@link Bundle} of any additional information.
125 *         This can be used to provide extended information to the component.
126 *         For example, if we have a action to send an e-mail message, we could
127 *         also include extra pieces of data here to supply a subject, body,
128 *         etc.</p>
129 * </ul>
130 *
131 * <p>Here are some examples of other operations you can specify as intents
132 * using these additional parameters:</p>
133 *
134 * <ul>
135 *   <li> <p><b>{@link #ACTION_MAIN} with category {@link #CATEGORY_HOME}</b> --
136 *     Launch the home screen.</p>
137 *   </li>
138 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
139 *     <i>{@link android.provider.Contacts.Phones#CONTENT_URI
140 *     vnd.android.cursor.item/phone}</i></b>
141 *     -- Display the list of people's phone numbers, allowing the user to
142 *     browse through them and pick one and return it to the parent activity.</p>
143 *   </li>
144 *   <li> <p><b>{@link #ACTION_GET_CONTENT} with MIME type
145 *     <i>*{@literal /}*</i> and category {@link #CATEGORY_OPENABLE}</b>
146 *     -- Display all pickers for data that can be opened with
147 *     {@link ContentResolver#openInputStream(Uri) ContentResolver.openInputStream()},
148 *     allowing the user to pick one of them and then some data inside of it
149 *     and returning the resulting URI to the caller.  This can be used,
150 *     for example, in an e-mail application to allow the user to pick some
151 *     data to include as an attachment.</p>
152 *   </li>
153 * </ul>
154 *
155 * <p>There are a variety of standard Intent action and category constants
156 * defined in the Intent class, but applications can also define their own.
157 * These strings use java style scoping, to ensure they are unique -- for
158 * example, the standard {@link #ACTION_VIEW} is called
159 * "android.intent.action.VIEW".</p>
160 *
161 * <p>Put together, the set of actions, data types, categories, and extra data
162 * defines a language for the system allowing for the expression of phrases
163 * such as "call john smith's cell".  As applications are added to the system,
164 * they can extend this language by adding new actions, types, and categories, or
165 * they can modify the behavior of existing phrases by supplying their own
166 * activities that handle them.</p>
167 *
168 * <a name="IntentResolution"></a>
169 * <h3>Intent Resolution</h3>
170 *
171 * <p>There are two primary forms of intents you will use.
172 *
173 * <ul>
174 *     <li> <p><b>Explicit Intents</b> have specified a component (via
175 *     {@link #setComponent} or {@link #setClass}), which provides the exact
176 *     class to be run.  Often these will not include any other information,
177 *     simply being a way for an application to launch various internal
178 *     activities it has as the user interacts with the application.
179 *
180 *     <li> <p><b>Implicit Intents</b> have not specified a component;
181 *     instead, they must include enough information for the system to
182 *     determine which of the available components is best to run for that
183 *     intent.
184 * </ul>
185 *
186 * <p>When using implicit intents, given such an arbitrary intent we need to
187 * know what to do with it. This is handled by the process of <em>Intent
188 * resolution</em>, which maps an Intent to an {@link android.app.Activity},
189 * {@link BroadcastReceiver}, or {@link android.app.Service} (or sometimes two or
190 * more activities/receivers) that can handle it.</p>
191 *
192 * <p>The intent resolution mechanism basically revolves around matching an
193 * Intent against all of the &lt;intent-filter&gt; descriptions in the
194 * installed application packages.  (Plus, in the case of broadcasts, any {@link BroadcastReceiver}
195 * objects explicitly registered with {@link Context#registerReceiver}.)  More
196 * details on this can be found in the documentation on the {@link
197 * IntentFilter} class.</p>
198 *
199 * <p>There are three pieces of information in the Intent that are used for
200 * resolution: the action, type, and category.  Using this information, a query
201 * is done on the {@link PackageManager} for a component that can handle the
202 * intent. The appropriate component is determined based on the intent
203 * information supplied in the <code>AndroidManifest.xml</code> file as
204 * follows:</p>
205 *
206 * <ul>
207 *     <li> <p>The <b>action</b>, if given, must be listed by the component as
208 *         one it handles.</p>
209 *     <li> <p>The <b>type</b> is retrieved from the Intent's data, if not
210 *         already supplied in the Intent.  Like the action, if a type is
211 *         included in the intent (either explicitly or implicitly in its
212 *         data), then this must be listed by the component as one it handles.</p>
213 *     <li> For data that is not a <code>content:</code> URI and where no explicit
214 *         type is included in the Intent, instead the <b>scheme</b> of the
215 *         intent data (such as <code>http:</code> or <code>mailto:</code>) is
216 *         considered. Again like the action, if we are matching a scheme it
217 *         must be listed by the component as one it can handle.
218 *     <li> <p>The <b>categories</b>, if supplied, must <em>all</em> be listed
219 *         by the activity as categories it handles.  That is, if you include
220 *         the categories {@link #CATEGORY_LAUNCHER} and
221 *         {@link #CATEGORY_ALTERNATIVE}, then you will only resolve to components
222 *         with an intent that lists <em>both</em> of those categories.
223 *         Activities will very often need to support the
224 *         {@link #CATEGORY_DEFAULT} so that they can be found by
225 *         {@link Context#startActivity Context.startActivity()}.</p>
226 * </ul>
227 *
228 * <p>For example, consider the Note Pad sample application that
229 * allows user to browse through a list of notes data and view details about
230 * individual items.  Text in italics indicate places were you would replace a
231 * name with one specific to your own package.</p>
232 *
233 * <pre> &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
234 *       package="<i>com.android.notepad</i>"&gt;
235 *     &lt;application android:icon="@drawable/app_notes"
236 *             android:label="@string/app_name"&gt;
237 *
238 *         &lt;provider class=".NotePadProvider"
239 *                 android:authorities="<i>com.google.provider.NotePad</i>" /&gt;
240 *
241 *         &lt;activity class=".NotesList" android:label="@string/title_notes_list"&gt;
242 *             &lt;intent-filter&gt;
243 *                 &lt;action android:name="android.intent.action.MAIN" /&gt;
244 *                 &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
245 *             &lt;/intent-filter&gt;
246 *             &lt;intent-filter&gt;
247 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
248 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
249 *                 &lt;action android:name="android.intent.action.PICK" /&gt;
250 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
251 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
252 *             &lt;/intent-filter&gt;
253 *             &lt;intent-filter&gt;
254 *                 &lt;action android:name="android.intent.action.GET_CONTENT" /&gt;
255 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
256 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
257 *             &lt;/intent-filter&gt;
258 *         &lt;/activity&gt;
259 *
260 *         &lt;activity class=".NoteEditor" android:label="@string/title_note"&gt;
261 *             &lt;intent-filter android:label="@string/resolve_edit"&gt;
262 *                 &lt;action android:name="android.intent.action.VIEW" /&gt;
263 *                 &lt;action android:name="android.intent.action.EDIT" /&gt;
264 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
265 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
266 *             &lt;/intent-filter&gt;
267 *
268 *             &lt;intent-filter&gt;
269 *                 &lt;action android:name="android.intent.action.INSERT" /&gt;
270 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
271 *                 &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
272 *             &lt;/intent-filter&gt;
273 *
274 *         &lt;/activity&gt;
275 *
276 *         &lt;activity class=".TitleEditor" android:label="@string/title_edit_title"
277 *                 android:theme="@android:style/Theme.Dialog"&gt;
278 *             &lt;intent-filter android:label="@string/resolve_title"&gt;
279 *                 &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
280 *                 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
281 *                 &lt;category android:name="android.intent.category.ALTERNATIVE" /&gt;
282 *                 &lt;category android:name="android.intent.category.SELECTED_ALTERNATIVE" /&gt;
283 *                 &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
284 *             &lt;/intent-filter&gt;
285 *         &lt;/activity&gt;
286 *
287 *     &lt;/application&gt;
288 * &lt;/manifest&gt;</pre>
289 *
290 * <p>The first activity,
291 * <code>com.android.notepad.NotesList</code>, serves as our main
292 * entry into the app.  It can do three things as described by its three intent
293 * templates:
294 * <ol>
295 * <li><pre>
296 * &lt;intent-filter&gt;
297 *     &lt;action android:name="{@link #ACTION_MAIN android.intent.action.MAIN}" /&gt;
298 *     &lt;category android:name="{@link #CATEGORY_LAUNCHER android.intent.category.LAUNCHER}" /&gt;
299 * &lt;/intent-filter&gt;</pre>
300 * <p>This provides a top-level entry into the NotePad application: the standard
301 * MAIN action is a main entry point (not requiring any other information in
302 * the Intent), and the LAUNCHER category says that this entry point should be
303 * listed in the application launcher.</p>
304 * <li><pre>
305 * &lt;intent-filter&gt;
306 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
307 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
308 *     &lt;action android:name="{@link #ACTION_PICK android.intent.action.PICK}" /&gt;
309 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
310 *     &lt;data mimeType:name="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
311 * &lt;/intent-filter&gt;</pre>
312 * <p>This declares the things that the activity can do on a directory of
313 * notes.  The type being supported is given with the &lt;type&gt; tag, where
314 * <code>vnd.android.cursor.dir/vnd.google.note</code> is a URI from which
315 * a Cursor of zero or more items (<code>vnd.android.cursor.dir</code>) can
316 * be retrieved which holds our note pad data (<code>vnd.google.note</code>).
317 * The activity allows the user to view or edit the directory of data (via
318 * the VIEW and EDIT actions), or to pick a particular note and return it
319 * to the caller (via the PICK action).  Note also the DEFAULT category
320 * supplied here: this is <em>required</em> for the
321 * {@link Context#startActivity Context.startActivity} method to resolve your
322 * activity when its component name is not explicitly specified.</p>
323 * <li><pre>
324 * &lt;intent-filter&gt;
325 *     &lt;action android:name="{@link #ACTION_GET_CONTENT android.intent.action.GET_CONTENT}" /&gt;
326 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
327 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
328 * &lt;/intent-filter&gt;</pre>
329 * <p>This filter describes the ability return to the caller a note selected by
330 * the user without needing to know where it came from.  The data type
331 * <code>vnd.android.cursor.item/vnd.google.note</code> is a URI from which
332 * a Cursor of exactly one (<code>vnd.android.cursor.item</code>) item can
333 * be retrieved which contains our note pad data (<code>vnd.google.note</code>).
334 * The GET_CONTENT action is similar to the PICK action, where the activity
335 * will return to its caller a piece of data selected by the user.  Here,
336 * however, the caller specifies the type of data they desire instead of
337 * the type of data the user will be picking from.</p>
338 * </ol>
339 *
340 * <p>Given these capabilities, the following intents will resolve to the
341 * NotesList activity:</p>
342 *
343 * <ul>
344 *     <li> <p><b>{ action=android.app.action.MAIN }</b> matches all of the
345 *         activities that can be used as top-level entry points into an
346 *         application.</p>
347 *     <li> <p><b>{ action=android.app.action.MAIN,
348 *         category=android.app.category.LAUNCHER }</b> is the actual intent
349 *         used by the Launcher to populate its top-level list.</p>
350 *     <li> <p><b>{ action=android.intent.action.VIEW
351 *          data=content://com.google.provider.NotePad/notes }</b>
352 *         displays a list of all the notes under
353 *         "content://com.google.provider.NotePad/notes", which
354 *         the user can browse through and see the details on.</p>
355 *     <li> <p><b>{ action=android.app.action.PICK
356 *          data=content://com.google.provider.NotePad/notes }</b>
357 *         provides a list of the notes under
358 *         "content://com.google.provider.NotePad/notes", from which
359 *         the user can pick a note whose data URL is returned back to the caller.</p>
360 *     <li> <p><b>{ action=android.app.action.GET_CONTENT
361 *          type=vnd.android.cursor.item/vnd.google.note }</b>
362 *         is similar to the pick action, but allows the caller to specify the
363 *         kind of data they want back so that the system can find the appropriate
364 *         activity to pick something of that data type.</p>
365 * </ul>
366 *
367 * <p>The second activity,
368 * <code>com.android.notepad.NoteEditor</code>, shows the user a single
369 * note entry and allows them to edit it.  It can do two things as described
370 * by its two intent templates:
371 * <ol>
372 * <li><pre>
373 * &lt;intent-filter android:label="@string/resolve_edit"&gt;
374 *     &lt;action android:name="{@link #ACTION_VIEW android.intent.action.VIEW}" /&gt;
375 *     &lt;action android:name="{@link #ACTION_EDIT android.intent.action.EDIT}" /&gt;
376 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
377 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
378 * &lt;/intent-filter&gt;</pre>
379 * <p>The first, primary, purpose of this activity is to let the user interact
380 * with a single note, as decribed by the MIME type
381 * <code>vnd.android.cursor.item/vnd.google.note</code>.  The activity can
382 * either VIEW a note or allow the user to EDIT it.  Again we support the
383 * DEFAULT category to allow the activity to be launched without explicitly
384 * specifying its component.</p>
385 * <li><pre>
386 * &lt;intent-filter&gt;
387 *     &lt;action android:name="{@link #ACTION_INSERT android.intent.action.INSERT}" /&gt;
388 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
389 *     &lt;data android:mimeType="vnd.android.cursor.dir/<i>vnd.google.note</i>" /&gt;
390 * &lt;/intent-filter&gt;</pre>
391 * <p>The secondary use of this activity is to insert a new note entry into
392 * an existing directory of notes.  This is used when the user creates a new
393 * note: the INSERT action is executed on the directory of notes, causing
394 * this activity to run and have the user create the new note data which
395 * it then adds to the content provider.</p>
396 * </ol>
397 *
398 * <p>Given these capabilities, the following intents will resolve to the
399 * NoteEditor activity:</p>
400 *
401 * <ul>
402 *     <li> <p><b>{ action=android.intent.action.VIEW
403 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
404 *         shows the user the content of note <var>{ID}</var>.</p>
405 *     <li> <p><b>{ action=android.app.action.EDIT
406 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
407 *         allows the user to edit the content of note <var>{ID}</var>.</p>
408 *     <li> <p><b>{ action=android.app.action.INSERT
409 *          data=content://com.google.provider.NotePad/notes }</b>
410 *         creates a new, empty note in the notes list at
411 *         "content://com.google.provider.NotePad/notes"
412 *         and allows the user to edit it.  If they keep their changes, the URI
413 *         of the newly created note is returned to the caller.</p>
414 * </ul>
415 *
416 * <p>The last activity,
417 * <code>com.android.notepad.TitleEditor</code>, allows the user to
418 * edit the title of a note.  This could be implemented as a class that the
419 * application directly invokes (by explicitly setting its component in
420 * the Intent), but here we show a way you can publish alternative
421 * operations on existing data:</p>
422 *
423 * <pre>
424 * &lt;intent-filter android:label="@string/resolve_title"&gt;
425 *     &lt;action android:name="<i>com.android.notepad.action.EDIT_TITLE</i>" /&gt;
426 *     &lt;category android:name="{@link #CATEGORY_DEFAULT android.intent.category.DEFAULT}" /&gt;
427 *     &lt;category android:name="{@link #CATEGORY_ALTERNATIVE android.intent.category.ALTERNATIVE}" /&gt;
428 *     &lt;category android:name="{@link #CATEGORY_SELECTED_ALTERNATIVE android.intent.category.SELECTED_ALTERNATIVE}" /&gt;
429 *     &lt;data android:mimeType="vnd.android.cursor.item/<i>vnd.google.note</i>" /&gt;
430 * &lt;/intent-filter&gt;</pre>
431 *
432 * <p>In the single intent template here, we
433 * have created our own private action called
434 * <code>com.android.notepad.action.EDIT_TITLE</code> which means to
435 * edit the title of a note.  It must be invoked on a specific note
436 * (data type <code>vnd.android.cursor.item/vnd.google.note</code>) like the previous
437 * view and edit actions, but here displays and edits the title contained
438 * in the note data.
439 *
440 * <p>In addition to supporting the default category as usual, our title editor
441 * also supports two other standard categories: ALTERNATIVE and
442 * SELECTED_ALTERNATIVE.  Implementing
443 * these categories allows others to find the special action it provides
444 * without directly knowing about it, through the
445 * {@link android.content.pm.PackageManager#queryIntentActivityOptions} method, or
446 * more often to build dynamic menu items with
447 * {@link android.view.Menu#addIntentOptions}.  Note that in the intent
448 * template here was also supply an explicit name for the template
449 * (via <code>android:label="@string/resolve_title"</code>) to better control
450 * what the user sees when presented with this activity as an alternative
451 * action to the data they are viewing.
452 *
453 * <p>Given these capabilities, the following intent will resolve to the
454 * TitleEditor activity:</p>
455 *
456 * <ul>
457 *     <li> <p><b>{ action=com.android.notepad.action.EDIT_TITLE
458 *          data=content://com.google.provider.NotePad/notes/<var>{ID}</var> }</b>
459 *         displays and allows the user to edit the title associated
460 *         with note <var>{ID}</var>.</p>
461 * </ul>
462 *
463 * <h3>Standard Activity Actions</h3>
464 *
465 * <p>These are the current standard actions that Intent defines for launching
466 * activities (usually through {@link Context#startActivity}.  The most
467 * important, and by far most frequently used, are {@link #ACTION_MAIN} and
468 * {@link #ACTION_EDIT}.
469 *
470 * <ul>
471 *     <li> {@link #ACTION_MAIN}
472 *     <li> {@link #ACTION_VIEW}
473 *     <li> {@link #ACTION_ATTACH_DATA}
474 *     <li> {@link #ACTION_EDIT}
475 *     <li> {@link #ACTION_PICK}
476 *     <li> {@link #ACTION_CHOOSER}
477 *     <li> {@link #ACTION_GET_CONTENT}
478 *     <li> {@link #ACTION_DIAL}
479 *     <li> {@link #ACTION_CALL}
480 *     <li> {@link #ACTION_SEND}
481 *     <li> {@link #ACTION_SENDTO}
482 *     <li> {@link #ACTION_ANSWER}
483 *     <li> {@link #ACTION_INSERT}
484 *     <li> {@link #ACTION_DELETE}
485 *     <li> {@link #ACTION_RUN}
486 *     <li> {@link #ACTION_SYNC}
487 *     <li> {@link #ACTION_PICK_ACTIVITY}
488 *     <li> {@link #ACTION_SEARCH}
489 *     <li> {@link #ACTION_WEB_SEARCH}
490 *     <li> {@link #ACTION_FACTORY_TEST}
491 * </ul>
492 *
493 * <h3>Standard Broadcast Actions</h3>
494 *
495 * <p>These are the current standard actions that Intent defines for receiving
496 * broadcasts (usually through {@link Context#registerReceiver} or a
497 * &lt;receiver&gt; tag in a manifest).
498 *
499 * <ul>
500 *     <li> {@link #ACTION_TIME_TICK}
501 *     <li> {@link #ACTION_TIME_CHANGED}
502 *     <li> {@link #ACTION_TIMEZONE_CHANGED}
503 *     <li> {@link #ACTION_BOOT_COMPLETED}
504 *     <li> {@link #ACTION_PACKAGE_ADDED}
505 *     <li> {@link #ACTION_PACKAGE_CHANGED}
506 *     <li> {@link #ACTION_PACKAGE_REMOVED}
507 *     <li> {@link #ACTION_PACKAGE_RESTARTED}
508 *     <li> {@link #ACTION_PACKAGE_DATA_CLEARED}
509 *     <li> {@link #ACTION_UID_REMOVED}
510 *     <li> {@link #ACTION_BATTERY_CHANGED}
511 *     <li> {@link #ACTION_POWER_CONNECTED}
512 *     <li> {@link #ACTION_POWER_DISCONNECTED}
513 *     <li> {@link #ACTION_SHUTDOWN}
514 * </ul>
515 *
516 * <h3>Standard Categories</h3>
517 *
518 * <p>These are the current standard categories that can be used to further
519 * clarify an Intent via {@link #addCategory}.
520 *
521 * <ul>
522 *     <li> {@link #CATEGORY_DEFAULT}
523 *     <li> {@link #CATEGORY_BROWSABLE}
524 *     <li> {@link #CATEGORY_TAB}
525 *     <li> {@link #CATEGORY_ALTERNATIVE}
526 *     <li> {@link #CATEGORY_SELECTED_ALTERNATIVE}
527 *     <li> {@link #CATEGORY_LAUNCHER}
528 *     <li> {@link #CATEGORY_INFO}
529 *     <li> {@link #CATEGORY_HOME}
530 *     <li> {@link #CATEGORY_PREFERENCE}
531 *     <li> {@link #CATEGORY_TEST}
532 *     <li> {@link #CATEGORY_CAR_DOCK}
533 *     <li> {@link #CATEGORY_DESK_DOCK}
534 * </ul>
535 *
536 * <h3>Standard Extra Data</h3>
537 *
538 * <p>These are the current standard fields that can be used as extra data via
539 * {@link #putExtra}.
540 *
541 * <ul>
542 *     <li> {@link #EXTRA_TEMPLATE}
543 *     <li> {@link #EXTRA_INTENT}
544 *     <li> {@link #EXTRA_STREAM}
545 *     <li> {@link #EXTRA_TEXT}
546 * </ul>
547 *
548 * <h3>Flags</h3>
549 *
550 * <p>These are the possible flags that can be used in the Intent via
551 * {@link #setFlags} and {@link #addFlags}.  See {@link #setFlags} for a list
552 * of all possible flags.
553 */
554public class Intent implements Parcelable {
555    // ---------------------------------------------------------------------
556    // ---------------------------------------------------------------------
557    // Standard intent activity actions (see action variable).
558
559    /**
560     *  Activity Action: Start as a main entry point, does not expect to
561     *  receive data.
562     *  <p>Input: nothing
563     *  <p>Output: nothing
564     */
565    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
566    public static final String ACTION_MAIN = "android.intent.action.MAIN";
567
568    /**
569     * Activity Action: Display the data to the user.  This is the most common
570     * action performed on data -- it is the generic action you can use on
571     * a piece of data to get the most reasonable thing to occur.  For example,
572     * when used on a contacts entry it will view the entry; when used on a
573     * mailto: URI it will bring up a compose window filled with the information
574     * supplied by the URI; when used with a tel: URI it will invoke the
575     * dialer.
576     * <p>Input: {@link #getData} is URI from which to retrieve data.
577     * <p>Output: nothing.
578     */
579    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
580    public static final String ACTION_VIEW = "android.intent.action.VIEW";
581
582    /**
583     * A synonym for {@link #ACTION_VIEW}, the "standard" action that is
584     * performed on a piece of data.
585     */
586    public static final String ACTION_DEFAULT = ACTION_VIEW;
587
588    /**
589     * Used to indicate that some piece of data should be attached to some other
590     * place.  For example, image data could be attached to a contact.  It is up
591     * to the recipient to decide where the data should be attached; the intent
592     * does not specify the ultimate destination.
593     * <p>Input: {@link #getData} is URI of data to be attached.
594     * <p>Output: nothing.
595     */
596    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
597    public static final String ACTION_ATTACH_DATA = "android.intent.action.ATTACH_DATA";
598
599    /**
600     * Activity Action: Provide explicit editable access to the given data.
601     * <p>Input: {@link #getData} is URI of data to be edited.
602     * <p>Output: nothing.
603     */
604    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
605    public static final String ACTION_EDIT = "android.intent.action.EDIT";
606
607    /**
608     * Activity Action: Pick an existing item, or insert a new item, and then edit it.
609     * <p>Input: {@link #getType} is the desired MIME type of the item to create or edit.
610     * The extras can contain type specific data to pass through to the editing/creating
611     * activity.
612     * <p>Output: The URI of the item that was picked.  This must be a content:
613     * URI so that any receiver can access it.
614     */
615    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
616    public static final String ACTION_INSERT_OR_EDIT = "android.intent.action.INSERT_OR_EDIT";
617
618    /**
619     * Activity Action: Pick an item from the data, returning what was selected.
620     * <p>Input: {@link #getData} is URI containing a directory of data
621     * (vnd.android.cursor.dir/*) from which to pick an item.
622     * <p>Output: The URI of the item that was picked.
623     */
624    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
625    public static final String ACTION_PICK = "android.intent.action.PICK";
626
627    /**
628     * Activity Action: Creates a shortcut.
629     * <p>Input: Nothing.</p>
630     * <p>Output: An Intent representing the shortcut. The intent must contain three
631     * extras: SHORTCUT_INTENT (value: Intent), SHORTCUT_NAME (value: String),
632     * and SHORTCUT_ICON (value: Bitmap) or SHORTCUT_ICON_RESOURCE
633     * (value: ShortcutIconResource).</p>
634     *
635     * @see #EXTRA_SHORTCUT_INTENT
636     * @see #EXTRA_SHORTCUT_NAME
637     * @see #EXTRA_SHORTCUT_ICON
638     * @see #EXTRA_SHORTCUT_ICON_RESOURCE
639     * @see android.content.Intent.ShortcutIconResource
640     */
641    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
642    public static final String ACTION_CREATE_SHORTCUT = "android.intent.action.CREATE_SHORTCUT";
643
644    /**
645     * The name of the extra used to define the Intent of a shortcut.
646     *
647     * @see #ACTION_CREATE_SHORTCUT
648     */
649    public static final String EXTRA_SHORTCUT_INTENT = "android.intent.extra.shortcut.INTENT";
650    /**
651     * The name of the extra used to define the name of a shortcut.
652     *
653     * @see #ACTION_CREATE_SHORTCUT
654     */
655    public static final String EXTRA_SHORTCUT_NAME = "android.intent.extra.shortcut.NAME";
656    /**
657     * The name of the extra used to define the icon, as a Bitmap, of a shortcut.
658     *
659     * @see #ACTION_CREATE_SHORTCUT
660     */
661    public static final String EXTRA_SHORTCUT_ICON = "android.intent.extra.shortcut.ICON";
662    /**
663     * The name of the extra used to define the icon, as a ShortcutIconResource, of a shortcut.
664     *
665     * @see #ACTION_CREATE_SHORTCUT
666     * @see android.content.Intent.ShortcutIconResource
667     */
668    public static final String EXTRA_SHORTCUT_ICON_RESOURCE =
669            "android.intent.extra.shortcut.ICON_RESOURCE";
670
671    /**
672     * Represents a shortcut/live folder icon resource.
673     *
674     * @see Intent#ACTION_CREATE_SHORTCUT
675     * @see Intent#EXTRA_SHORTCUT_ICON_RESOURCE
676     * @see android.provider.LiveFolders#ACTION_CREATE_LIVE_FOLDER
677     * @see android.provider.LiveFolders#EXTRA_LIVE_FOLDER_ICON
678     */
679    public static class ShortcutIconResource implements Parcelable {
680        /**
681         * The package name of the application containing the icon.
682         */
683        public String packageName;
684
685        /**
686         * The resource name of the icon, including package, name and type.
687         */
688        public String resourceName;
689
690        /**
691         * Creates a new ShortcutIconResource for the specified context and resource
692         * identifier.
693         *
694         * @param context The context of the application.
695         * @param resourceId The resource idenfitier for the icon.
696         * @return A new ShortcutIconResource with the specified's context package name
697         *         and icon resource idenfitier.
698         */
699        public static ShortcutIconResource fromContext(Context context, int resourceId) {
700            ShortcutIconResource icon = new ShortcutIconResource();
701            icon.packageName = context.getPackageName();
702            icon.resourceName = context.getResources().getResourceName(resourceId);
703            return icon;
704        }
705
706        /**
707         * Used to read a ShortcutIconResource from a Parcel.
708         */
709        public static final Parcelable.Creator<ShortcutIconResource> CREATOR =
710            new Parcelable.Creator<ShortcutIconResource>() {
711
712                public ShortcutIconResource createFromParcel(Parcel source) {
713                    ShortcutIconResource icon = new ShortcutIconResource();
714                    icon.packageName = source.readString();
715                    icon.resourceName = source.readString();
716                    return icon;
717                }
718
719                public ShortcutIconResource[] newArray(int size) {
720                    return new ShortcutIconResource[size];
721                }
722            };
723
724        /**
725         * No special parcel contents.
726         */
727        public int describeContents() {
728            return 0;
729        }
730
731        public void writeToParcel(Parcel dest, int flags) {
732            dest.writeString(packageName);
733            dest.writeString(resourceName);
734        }
735
736        @Override
737        public String toString() {
738            return resourceName;
739        }
740    }
741
742    /**
743     * Activity Action: Display an activity chooser, allowing the user to pick
744     * what they want to before proceeding.  This can be used as an alternative
745     * to the standard activity picker that is displayed by the system when
746     * you try to start an activity with multiple possible matches, with these
747     * differences in behavior:
748     * <ul>
749     * <li>You can specify the title that will appear in the activity chooser.
750     * <li>The user does not have the option to make one of the matching
751     * activities a preferred activity, and all possible activities will
752     * always be shown even if one of them is currently marked as the
753     * preferred activity.
754     * </ul>
755     * <p>
756     * This action should be used when the user will naturally expect to
757     * select an activity in order to proceed.  An example if when not to use
758     * it is when the user clicks on a "mailto:" link.  They would naturally
759     * expect to go directly to their mail app, so startActivity() should be
760     * called directly: it will
761     * either launch the current preferred app, or put up a dialog allowing the
762     * user to pick an app to use and optionally marking that as preferred.
763     * <p>
764     * In contrast, if the user is selecting a menu item to send a picture
765     * they are viewing to someone else, there are many different things they
766     * may want to do at this point: send it through e-mail, upload it to a
767     * web service, etc.  In this case the CHOOSER action should be used, to
768     * always present to the user a list of the things they can do, with a
769     * nice title given by the caller such as "Send this photo with:".
770     * <p>
771     * As a convenience, an Intent of this form can be created with the
772     * {@link #createChooser} function.
773     * <p>Input: No data should be specified.  get*Extra must have
774     * a {@link #EXTRA_INTENT} field containing the Intent being executed,
775     * and can optionally have a {@link #EXTRA_TITLE} field containing the
776     * title text to display in the chooser.
777     * <p>Output: Depends on the protocol of {@link #EXTRA_INTENT}.
778     */
779    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
780    public static final String ACTION_CHOOSER = "android.intent.action.CHOOSER";
781
782    /**
783     * Convenience function for creating a {@link #ACTION_CHOOSER} Intent.
784     *
785     * @param target The Intent that the user will be selecting an activity
786     * to perform.
787     * @param title Optional title that will be displayed in the chooser.
788     * @return Return a new Intent object that you can hand to
789     * {@link Context#startActivity(Intent) Context.startActivity()} and
790     * related methods.
791     */
792    public static Intent createChooser(Intent target, CharSequence title) {
793        Intent intent = new Intent(ACTION_CHOOSER);
794        intent.putExtra(EXTRA_INTENT, target);
795        if (title != null) {
796            intent.putExtra(EXTRA_TITLE, title);
797        }
798        return intent;
799    }
800    /**
801     * Activity Action: Allow the user to select a particular kind of data and
802     * return it.  This is different than {@link #ACTION_PICK} in that here we
803     * just say what kind of data is desired, not a URI of existing data from
804     * which the user can pick.  A ACTION_GET_CONTENT could allow the user to
805     * create the data as it runs (for example taking a picture or recording a
806     * sound), let them browser over the web and download the desired data,
807     * etc.
808     * <p>
809     * There are two main ways to use this action: if you want an specific kind
810     * of data, such as a person contact, you set the MIME type to the kind of
811     * data you want and launch it with {@link Context#startActivity(Intent)}.
812     * The system will then launch the best application to select that kind
813     * of data for you.
814     * <p>
815     * You may also be interested in any of a set of types of content the user
816     * can pick.  For example, an e-mail application that wants to allow the
817     * user to add an attachment to an e-mail message can use this action to
818     * bring up a list of all of the types of content the user can attach.
819     * <p>
820     * In this case, you should wrap the GET_CONTENT intent with a chooser
821     * (through {@link #createChooser}), which will give the proper interface
822     * for the user to pick how to send your data and allow you to specify
823     * a prompt indicating what they are doing.  You will usually specify a
824     * broad MIME type (such as image/* or {@literal *}/*), resulting in a
825     * broad range of content types the user can select from.
826     * <p>
827     * When using such a broad GET_CONTENT action, it is often desireable to
828     * only pick from data that can be represented as a stream.  This is
829     * accomplished by requiring the {@link #CATEGORY_OPENABLE} in the Intent.
830     * <p>
831     * Input: {@link #getType} is the desired MIME type to retrieve.  Note
832     * that no URI is supplied in the intent, as there are no constraints on
833     * where the returned data originally comes from.  You may also include the
834     * {@link #CATEGORY_OPENABLE} if you can only accept data that can be
835     * opened as a stream.
836     * <p>
837     * Output: The URI of the item that was picked.  This must be a content:
838     * URI so that any receiver can access it.
839     */
840    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
841    public static final String ACTION_GET_CONTENT = "android.intent.action.GET_CONTENT";
842    /**
843     * Activity Action: Dial a number as specified by the data.  This shows a
844     * UI with the number being dialed, allowing the user to explicitly
845     * initiate the call.
846     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
847     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
848     * number.
849     * <p>Output: nothing.
850     */
851    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
852    public static final String ACTION_DIAL = "android.intent.action.DIAL";
853    /**
854     * Activity Action: Perform a call to someone specified by the data.
855     * <p>Input: If nothing, an empty dialer is started; else {@link #getData}
856     * is URI of a phone number to be dialed or a tel: URI of an explicit phone
857     * number.
858     * <p>Output: nothing.
859     *
860     * <p>Note: there will be restrictions on which applications can initiate a
861     * call; most applications should use the {@link #ACTION_DIAL}.
862     * <p>Note: this Intent <strong>cannot</strong> be used to call emergency
863     * numbers.  Applications can <strong>dial</strong> emergency numbers using
864     * {@link #ACTION_DIAL}, however.
865     */
866    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
867    public static final String ACTION_CALL = "android.intent.action.CALL";
868    /**
869     * Activity Action: Perform a call to an emergency number specified by the
870     * data.
871     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
872     * tel: URI of an explicit phone number.
873     * <p>Output: nothing.
874     * @hide
875     */
876    public static final String ACTION_CALL_EMERGENCY = "android.intent.action.CALL_EMERGENCY";
877    /**
878     * Activity action: Perform a call to any number (emergency or not)
879     * specified by the data.
880     * <p>Input: {@link #getData} is URI of a phone number to be dialed or a
881     * tel: URI of an explicit phone number.
882     * <p>Output: nothing.
883     * @hide
884     */
885    public static final String ACTION_CALL_PRIVILEGED = "android.intent.action.CALL_PRIVILEGED";
886    /**
887     * Activity Action: Send a message to someone specified by the data.
888     * <p>Input: {@link #getData} is URI describing the target.
889     * <p>Output: nothing.
890     */
891    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
892    public static final String ACTION_SENDTO = "android.intent.action.SENDTO";
893    /**
894     * Activity Action: Deliver some data to someone else.  Who the data is
895     * being delivered to is not specified; it is up to the receiver of this
896     * action to ask the user where the data should be sent.
897     * <p>
898     * When launching a SEND intent, you should usually wrap it in a chooser
899     * (through {@link #createChooser}), which will give the proper interface
900     * for the user to pick how to send your data and allow you to specify
901     * a prompt indicating what they are doing.
902     * <p>
903     * Input: {@link #getType} is the MIME type of the data being sent.
904     * get*Extra can have either a {@link #EXTRA_TEXT}
905     * or {@link #EXTRA_STREAM} field, containing the data to be sent.  If
906     * using EXTRA_TEXT, the MIME type should be "text/plain"; otherwise it
907     * should be the MIME type of the data in EXTRA_STREAM.  Use {@literal *}/*
908     * if the MIME type is unknown (this will only allow senders that can
909     * handle generic data streams).
910     * <p>
911     * Optional standard extras, which may be interpreted by some recipients as
912     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
913     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
914     * <p>
915     * Output: nothing.
916     */
917    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
918    public static final String ACTION_SEND = "android.intent.action.SEND";
919    /**
920     * Activity Action: Deliver multiple data to someone else.
921     * <p>
922     * Like ACTION_SEND, except the data is multiple.
923     * <p>
924     * Input: {@link #getType} is the MIME type of the data being sent.
925     * get*ArrayListExtra can have either a {@link #EXTRA_TEXT} or {@link
926     * #EXTRA_STREAM} field, containing the data to be sent.
927     * <p>
928     * Multiple types are supported, and receivers should handle mixed types
929     * whenever possible. The right way for the receiver to check them is to
930     * use the content resolver on each URI. The intent sender should try to
931     * put the most concrete mime type in the intent type, but it can fall
932     * back to {@literal <type>/*} or {@literal *}/* as needed.
933     * <p>
934     * e.g. if you are sending image/jpg and image/jpg, the intent's type can
935     * be image/jpg, but if you are sending image/jpg and image/png, then the
936     * intent's type should be image/*.
937     * <p>
938     * Optional standard extras, which may be interpreted by some recipients as
939     * appropriate, are: {@link #EXTRA_EMAIL}, {@link #EXTRA_CC},
940     * {@link #EXTRA_BCC}, {@link #EXTRA_SUBJECT}.
941     * <p>
942     * Output: nothing.
943     */
944    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
945    public static final String ACTION_SEND_MULTIPLE = "android.intent.action.SEND_MULTIPLE";
946    /**
947     * Activity Action: Handle an incoming phone call.
948     * <p>Input: nothing.
949     * <p>Output: nothing.
950     */
951    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
952    public static final String ACTION_ANSWER = "android.intent.action.ANSWER";
953    /**
954     * Activity Action: Insert an empty item into the given container.
955     * <p>Input: {@link #getData} is URI of the directory (vnd.android.cursor.dir/*)
956     * in which to place the data.
957     * <p>Output: URI of the new data that was created.
958     */
959    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
960    public static final String ACTION_INSERT = "android.intent.action.INSERT";
961    /**
962     * Activity Action: Delete the given data from its container.
963     * <p>Input: {@link #getData} is URI of data to be deleted.
964     * <p>Output: nothing.
965     */
966    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
967    public static final String ACTION_DELETE = "android.intent.action.DELETE";
968    /**
969     * Activity Action: Run the data, whatever that means.
970     * <p>Input: ?  (Note: this is currently specific to the test harness.)
971     * <p>Output: nothing.
972     */
973    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
974    public static final String ACTION_RUN = "android.intent.action.RUN";
975    /**
976     * Activity Action: Perform a data synchronization.
977     * <p>Input: ?
978     * <p>Output: ?
979     */
980    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
981    public static final String ACTION_SYNC = "android.intent.action.SYNC";
982    /**
983     * Activity Action: Pick an activity given an intent, returning the class
984     * selected.
985     * <p>Input: get*Extra field {@link #EXTRA_INTENT} is an Intent
986     * used with {@link PackageManager#queryIntentActivities} to determine the
987     * set of activities from which to pick.
988     * <p>Output: Class name of the activity that was selected.
989     */
990    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
991    public static final String ACTION_PICK_ACTIVITY = "android.intent.action.PICK_ACTIVITY";
992    /**
993     * Activity Action: Perform a search.
994     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
995     * is the text to search for.  If empty, simply
996     * enter your search results Activity with the search UI activated.
997     * <p>Output: nothing.
998     */
999    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1000    public static final String ACTION_SEARCH = "android.intent.action.SEARCH";
1001    /**
1002     * Activity Action: Start the platform-defined tutorial
1003     * <p>Input: {@link android.app.SearchManager#QUERY getStringExtra(SearchManager.QUERY)}
1004     * is the text to search for.  If empty, simply
1005     * enter your search results Activity with the search UI activated.
1006     * <p>Output: nothing.
1007     */
1008    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1009    public static final String ACTION_SYSTEM_TUTORIAL = "android.intent.action.SYSTEM_TUTORIAL";
1010    /**
1011     * Activity Action: Perform a web search.
1012     * <p>
1013     * Input: {@link android.app.SearchManager#QUERY
1014     * getStringExtra(SearchManager.QUERY)} is the text to search for. If it is
1015     * a url starts with http or https, the site will be opened. If it is plain
1016     * text, Google search will be applied.
1017     * <p>
1018     * Output: nothing.
1019     */
1020    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1021    public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
1022    /**
1023     * Activity Action: List all available applications
1024     * <p>Input: Nothing.
1025     * <p>Output: nothing.
1026     */
1027    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1028    public static final String ACTION_ALL_APPS = "android.intent.action.ALL_APPS";
1029    /**
1030     * Activity Action: Show settings for choosing wallpaper
1031     * <p>Input: Nothing.
1032     * <p>Output: Nothing.
1033     */
1034    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1035    public static final String ACTION_SET_WALLPAPER = "android.intent.action.SET_WALLPAPER";
1036
1037    /**
1038     * Activity Action: Show activity for reporting a bug.
1039     * <p>Input: Nothing.
1040     * <p>Output: Nothing.
1041     */
1042    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1043    public static final String ACTION_BUG_REPORT = "android.intent.action.BUG_REPORT";
1044
1045    /**
1046     *  Activity Action: Main entry point for factory tests.  Only used when
1047     *  the device is booting in factory test node.  The implementing package
1048     *  must be installed in the system image.
1049     *  <p>Input: nothing
1050     *  <p>Output: nothing
1051     */
1052    public static final String ACTION_FACTORY_TEST = "android.intent.action.FACTORY_TEST";
1053
1054    /**
1055     * Activity Action: The user pressed the "call" button to go to the dialer
1056     * or other appropriate UI for placing a call.
1057     * <p>Input: Nothing.
1058     * <p>Output: Nothing.
1059     */
1060    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1061    public static final String ACTION_CALL_BUTTON = "android.intent.action.CALL_BUTTON";
1062
1063    /**
1064     * Activity Action: Start Voice Command.
1065     * <p>Input: Nothing.
1066     * <p>Output: Nothing.
1067     */
1068    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1069    public static final String ACTION_VOICE_COMMAND = "android.intent.action.VOICE_COMMAND";
1070
1071    /**
1072     * Activity Action: Start action associated with long pressing on the
1073     * search key.
1074     * <p>Input: Nothing.
1075     * <p>Output: Nothing.
1076     */
1077    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1078    public static final String ACTION_SEARCH_LONG_PRESS = "android.intent.action.SEARCH_LONG_PRESS";
1079
1080    /**
1081     * Activity Action: The user pressed the "Report" button in the crash/ANR dialog.
1082     * This intent is delivered to the package which installed the application, usually
1083     * the Market.
1084     * <p>Input: No data is specified. The bug report is passed in using
1085     * an {@link #EXTRA_BUG_REPORT} field.
1086     * <p>Output: Nothing.
1087     * @hide
1088     */
1089    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1090    public static final String ACTION_APP_ERROR = "android.intent.action.APP_ERROR";
1091
1092    /**
1093     * Activity Action: Show power usage information to the user.
1094     * <p>Input: Nothing.
1095     * <p>Output: Nothing.
1096     */
1097    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1098    public static final String ACTION_POWER_USAGE_SUMMARY = "android.intent.action.POWER_USAGE_SUMMARY";
1099
1100    /**
1101     * Activity Action: Setup wizard to launch after a platform update.  This
1102     * activity should have a string meta-data field associated with it,
1103     * {@link #METADATA_SETUP_VERSION}, which defines the current version of
1104     * the platform for setup.  The activity will be launched only if
1105     * {@link android.provider.Settings.Secure#LAST_SETUP_SHOWN} is not the
1106     * same value.
1107     * <p>Input: Nothing.
1108     * <p>Output: Nothing.
1109     * @hide
1110     */
1111    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1112    public static final String ACTION_UPGRADE_SETUP = "android.intent.action.UPGRADE_SETUP";
1113
1114    /**
1115     * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
1116     * describing the last run version of the platform that was setup.
1117     * @hide
1118     */
1119    public static final String METADATA_SETUP_VERSION = "android.SETUP_VERSION";
1120
1121    // ---------------------------------------------------------------------
1122    // ---------------------------------------------------------------------
1123    // Standard intent broadcast actions (see action variable).
1124
1125    /**
1126     * Broadcast Action: Sent after the screen turns off.
1127     *
1128     * <p class="note">This is a protected intent that can only be sent
1129     * by the system.
1130     */
1131    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1132    public static final String ACTION_SCREEN_OFF = "android.intent.action.SCREEN_OFF";
1133    /**
1134     * Broadcast Action: Sent after the screen turns on.
1135     *
1136     * <p class="note">This is a protected intent that can only be sent
1137     * by the system.
1138     */
1139    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1140    public static final String ACTION_SCREEN_ON = "android.intent.action.SCREEN_ON";
1141
1142    /**
1143     * Broadcast Action: Sent when the user is present after device wakes up (e.g when the
1144     * keyguard is gone).
1145     *
1146     * <p class="note">This is a protected intent that can only be sent
1147     * by the system.
1148     */
1149    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1150    public static final String ACTION_USER_PRESENT= "android.intent.action.USER_PRESENT";
1151
1152    /**
1153     * Broadcast Action: The current time has changed.  Sent every
1154     * minute.  You can <em>not</em> receive this through components declared
1155     * in manifests, only by exlicitly registering for it with
1156     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1157     * Context.registerReceiver()}.
1158     *
1159     * <p class="note">This is a protected intent that can only be sent
1160     * by the system.
1161     */
1162    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1163    public static final String ACTION_TIME_TICK = "android.intent.action.TIME_TICK";
1164    /**
1165     * Broadcast Action: The time was set.
1166     */
1167    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1168    public static final String ACTION_TIME_CHANGED = "android.intent.action.TIME_SET";
1169    /**
1170     * Broadcast Action: The date has changed.
1171     */
1172    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1173    public static final String ACTION_DATE_CHANGED = "android.intent.action.DATE_CHANGED";
1174    /**
1175     * Broadcast Action: The timezone has changed. The intent will have the following extra values:</p>
1176     * <ul>
1177     *   <li><em>time-zone</em> - The java.util.TimeZone.getID() value identifying the new time zone.</li>
1178     * </ul>
1179     *
1180     * <p class="note">This is a protected intent that can only be sent
1181     * by the system.
1182     */
1183    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1184    public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
1185    /**
1186     * Alarm Changed Action: This is broadcast when the AlarmClock
1187     * application's alarm is set or unset.  It is used by the
1188     * AlarmClock application and the StatusBar service.
1189     * @hide
1190     */
1191    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1192    public static final String ACTION_ALARM_CHANGED = "android.intent.action.ALARM_CHANGED";
1193    /**
1194     * Sync State Changed Action: This is broadcast when the sync starts or stops or when one has
1195     * been failing for a long time.  It is used by the SyncManager and the StatusBar service.
1196     * @hide
1197     */
1198    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1199    public static final String ACTION_SYNC_STATE_CHANGED
1200            = "android.intent.action.SYNC_STATE_CHANGED";
1201    /**
1202     * Broadcast Action: This is broadcast once, after the system has finished
1203     * booting.  It can be used to perform application-specific initialization,
1204     * such as installing alarms.  You must hold the
1205     * {@link android.Manifest.permission#RECEIVE_BOOT_COMPLETED} permission
1206     * in order to receive this broadcast.
1207     *
1208     * <p class="note">This is a protected intent that can only be sent
1209     * by the system.
1210     */
1211    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1212    public static final String ACTION_BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED";
1213    /**
1214     * Broadcast Action: This is broadcast when a user action should request a
1215     * temporary system dialog to dismiss.  Some examples of temporary system
1216     * dialogs are the notification window-shade and the recent tasks dialog.
1217     */
1218    public static final String ACTION_CLOSE_SYSTEM_DIALOGS = "android.intent.action.CLOSE_SYSTEM_DIALOGS";
1219    /**
1220     * Broadcast Action: Trigger the download and eventual installation
1221     * of a package.
1222     * <p>Input: {@link #getData} is the URI of the package file to download.
1223     *
1224     * <p class="note">This is a protected intent that can only be sent
1225     * by the system.
1226     */
1227    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1228    public static final String ACTION_PACKAGE_INSTALL = "android.intent.action.PACKAGE_INSTALL";
1229    /**
1230     * Broadcast Action: A new application package has been installed on the
1231     * device. The data contains the name of the package.  Note that the
1232     * newly installed package does <em>not</em> receive this broadcast.
1233     * <p>My include the following extras:
1234     * <ul>
1235     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1236     * <li> {@link #EXTRA_REPLACING} is set to true if this is following
1237     * an {@link #ACTION_PACKAGE_REMOVED} broadcast for the same package.
1238     * </ul>
1239     *
1240     * <p class="note">This is a protected intent that can only be sent
1241     * by the system.
1242     */
1243    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1244    public static final String ACTION_PACKAGE_ADDED = "android.intent.action.PACKAGE_ADDED";
1245    /**
1246     * Broadcast Action: A new version of an application package has been
1247     * installed, replacing an existing version that was previously installed.
1248     * The data contains the name of the package.
1249     * <p>My include the following extras:
1250     * <ul>
1251     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the new package.
1252     * </ul>
1253     *
1254     * <p class="note">This is a protected intent that can only be sent
1255     * by the system.
1256     */
1257    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1258    public static final String ACTION_PACKAGE_REPLACED = "android.intent.action.PACKAGE_REPLACED";
1259    /**
1260     * Broadcast Action: An existing application package has been removed from
1261     * the device.  The data contains the name of the package.  The package
1262     * that is being installed does <em>not</em> receive this Intent.
1263     * <ul>
1264     * <li> {@link #EXTRA_UID} containing the integer uid previously assigned
1265     * to the package.
1266     * <li> {@link #EXTRA_DATA_REMOVED} is set to true if the entire
1267     * application -- data and code -- is being removed.
1268     * <li> {@link #EXTRA_REPLACING} is set to true if this will be followed
1269     * by an {@link #ACTION_PACKAGE_ADDED} broadcast for the same package.
1270     * </ul>
1271     *
1272     * <p class="note">This is a protected intent that can only be sent
1273     * by the system.
1274     */
1275    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1276    public static final String ACTION_PACKAGE_REMOVED = "android.intent.action.PACKAGE_REMOVED";
1277    /**
1278     * Broadcast Action: An existing application package has been changed (e.g. a component has been
1279     * enabled or disabled.  The data contains the name of the package.
1280     * <ul>
1281     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1282     * <li> {@link #EXTRA_CHANGED_COMPONENT_NAME} containing the class name of the changed component.
1283     * <li> {@link #EXTRA_DONT_KILL_APP} containing boolean field to override the default action of restarting the application.
1284     * </ul>
1285     *
1286     * <p class="note">This is a protected intent that can only be sent
1287     * by the system.
1288     */
1289    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1290    public static final String ACTION_PACKAGE_CHANGED = "android.intent.action.PACKAGE_CHANGED";
1291    /**
1292     * Broadcast Action: The user has restarted a package, and all of its
1293     * processes have been killed.  All runtime state
1294     * associated with it (processes, alarms, notifications, etc) should
1295     * be removed.  Note that the restarted package does <em>not</em>
1296     * receive this broadcast.
1297     * The data contains the name of the package.
1298     * <ul>
1299     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1300     * </ul>
1301     *
1302     * <p class="note">This is a protected intent that can only be sent
1303     * by the system.
1304     */
1305    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1306    public static final String ACTION_PACKAGE_RESTARTED = "android.intent.action.PACKAGE_RESTARTED";
1307    /**
1308     * Broadcast Action: The user has cleared the data of a package.  This should
1309     * be preceded by {@link #ACTION_PACKAGE_RESTARTED}, after which all of
1310     * its persistent data is erased and this broadcast sent.
1311     * Note that the cleared package does <em>not</em>
1312     * receive this broadcast. The data contains the name of the package.
1313     * <ul>
1314     * <li> {@link #EXTRA_UID} containing the integer uid assigned to the package.
1315     * </ul>
1316     *
1317     * <p class="note">This is a protected intent that can only be sent
1318     * by the system.
1319     */
1320    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1321    public static final String ACTION_PACKAGE_DATA_CLEARED = "android.intent.action.PACKAGE_DATA_CLEARED";
1322    /**
1323     * Broadcast Action: A user ID has been removed from the system.  The user
1324     * ID number is stored in the extra data under {@link #EXTRA_UID}.
1325     *
1326     * <p class="note">This is a protected intent that can only be sent
1327     * by the system.
1328     */
1329    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1330    public static final String ACTION_UID_REMOVED = "android.intent.action.UID_REMOVED";
1331    /**
1332     * Broadcast Action:  The current system wallpaper has changed.  See
1333     * {@link Context#getWallpaper} for retrieving the new wallpaper.
1334     */
1335    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1336    public static final String ACTION_WALLPAPER_CHANGED = "android.intent.action.WALLPAPER_CHANGED";
1337    /**
1338     * Broadcast Action: The current device {@link android.content.res.Configuration}
1339     * (orientation, locale, etc) has changed.  When such a change happens, the
1340     * UIs (view hierarchy) will need to be rebuilt based on this new
1341     * information; for the most part, applications don't need to worry about
1342     * this, because the system will take care of stopping and restarting the
1343     * application to make sure it sees the new changes.  Some system code that
1344     * can not be restarted will need to watch for this action and handle it
1345     * appropriately.
1346     *
1347     * <p class="note">This is a protected intent that can only be sent
1348     * by the system.
1349     *
1350     * @see android.content.res.Configuration
1351     */
1352    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1353    public static final String ACTION_CONFIGURATION_CHANGED = "android.intent.action.CONFIGURATION_CHANGED";
1354    /**
1355     * Broadcast Action:  The charging state, or charge level of the battery has
1356     * changed.
1357     *
1358     * <p class="note">
1359     * You can <em>not</em> receive this through components declared
1360     * in manifests, only by explicitly registering for it with
1361     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1362     * Context.registerReceiver()}.
1363     *
1364     * <p class="note">This is a protected intent that can only be sent
1365     * by the system.
1366     */
1367    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1368    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1369    /**
1370     * Broadcast Action:  Indicates low battery condition on the device.
1371     * This broadcast corresponds to the "Low battery warning" system dialog.
1372     *
1373     * <p class="note">This is a protected intent that can only be sent
1374     * by the system.
1375     */
1376    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1377    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1378    /**
1379     * Broadcast Action:  Indicates the battery is now okay after being low.
1380     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1381     * gone back up to an okay state.
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_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1388    /**
1389     * Broadcast Action:  External power has been connected to 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_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1400    /**
1401     * Broadcast Action:  External power has been removed from the device.
1402     * This is intended for applications that wish to register specifically to this notification.
1403     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1404     * stay active to receive this notification.  This action can be used to implement actions
1405     * that wait until power is available to trigger.
1406     *
1407     * <p class="note">This is a protected intent that can only be sent
1408     * by the system.
1409     */
1410    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1411    public static final String ACTION_POWER_DISCONNECTED =
1412            "android.intent.action.ACTION_POWER_DISCONNECTED";
1413    /**
1414     * Broadcast Action:  Device is shutting down.
1415     * This is broadcast when the device is being shut down (completely turned
1416     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1417     * will proceed and all unsaved data lost.  Apps will not normally need
1418     * to handle this, since the foreground activity will be paused as well.
1419     *
1420     * <p class="note">This is a protected intent that can only be sent
1421     * by the system.
1422     */
1423    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1424    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1425    /**
1426     * Activity Action:  Start this activity to request system shutdown.
1427     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1428     * to request confirmation from the user before shutting down.
1429     *
1430     * <p class="note">This is a protected intent that can only be sent
1431     * by the system.
1432     *
1433     * {@hide}
1434     */
1435    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1436    /**
1437     * Broadcast Action:  Indicates low memory condition on the device
1438     *
1439     * <p class="note">This is a protected intent that can only be sent
1440     * by the system.
1441     */
1442    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1443    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1444    /**
1445     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1446     *
1447     * <p class="note">This is a protected intent that can only be sent
1448     * by the system.
1449     */
1450    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1451    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1452    /**
1453     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1454     * and package management should be started.
1455     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1456     * notification.
1457     */
1458    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1459    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1460    /**
1461     * Broadcast Action:  The device has entered USB Mass Storage mode.
1462     * This is used mainly for the USB Settings panel.
1463     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1464     * when the SD card file system is mounted or unmounted
1465     */
1466    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1467    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1468
1469    /**
1470     * Broadcast Action:  The device has exited USB Mass Storage mode.
1471     * This is used mainly for the USB Settings panel.
1472     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1473     * when the SD card file system is mounted or unmounted
1474     */
1475    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1476    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1477
1478    /**
1479     * Broadcast Action:  External media has been removed.
1480     * The path to the mount point for the removed media is contained in the Intent.mData field.
1481     */
1482    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1483    public static final String ACTION_MEDIA_REMOVED = "android.intent.action.MEDIA_REMOVED";
1484
1485    /**
1486     * Broadcast Action:  External media is present, but not mounted at its mount point.
1487     * The path to the mount point for the removed media is contained in the Intent.mData field.
1488     */
1489    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1490    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1491
1492    /**
1493     * Broadcast Action:  External media is present, and being disk-checked
1494     * The path to the mount point for the checking media is contained in the Intent.mData field.
1495     */
1496    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1497    public static final String ACTION_MEDIA_CHECKING = "android.intent.action.MEDIA_CHECKING";
1498
1499    /**
1500     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1501     * The path to the mount point for the checking media is contained in the Intent.mData field.
1502     */
1503    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1504    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1505
1506    /**
1507     * Broadcast Action:  External media is present and mounted at its mount point.
1508     * The path to the mount point for the removed media is contained in the Intent.mData field.
1509     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1510     * media was mounted read only.
1511     */
1512    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1513    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1514
1515    /**
1516     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
1517     * The path to the mount point for the removed media is contained in the Intent.mData field.
1518     */
1519    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1520    public static final String ACTION_MEDIA_SHARED = "android.intent.action.MEDIA_SHARED";
1521
1522    /**
1523     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
1524     * The path to the mount point for the removed media is contained in the Intent.mData field.
1525     */
1526    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1527    public static final String ACTION_MEDIA_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1528
1529    /**
1530     * Broadcast Action:  External media is present but cannot be mounted.
1531     * The path to the mount point for the removed media is contained in the Intent.mData field.
1532     */
1533    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1534    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1535
1536   /**
1537     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1538     * Applications should close all files they have open within the mount point when they receive this intent.
1539     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1540     */
1541    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1542    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1543
1544    /**
1545     * Broadcast Action:  The media scanner has started scanning a directory.
1546     * The path to the directory being scanned is contained in the Intent.mData field.
1547     */
1548    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1549    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1550
1551   /**
1552     * Broadcast Action:  The media scanner has finished scanning a directory.
1553     * The path to the scanned directory is contained in the Intent.mData field.
1554     */
1555    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1556    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1557
1558   /**
1559     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1560     * The path to the file is contained in the Intent.mData field.
1561     */
1562    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1563    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1564
1565   /**
1566     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1567     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1568     * caused the broadcast.
1569     */
1570    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1571    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1572
1573    /**
1574     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1575     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1576     * caused the broadcast.
1577     */
1578    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1579    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1580
1581    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1582    // location; they are not general-purpose actions.
1583
1584    /**
1585     * Broadcast Action: An GTalk connection has been established.
1586     */
1587    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1588    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1589            "android.intent.action.GTALK_CONNECTED";
1590
1591    /**
1592     * Broadcast Action: An GTalk connection has been disconnected.
1593     */
1594    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1595    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1596            "android.intent.action.GTALK_DISCONNECTED";
1597
1598    /**
1599     * Broadcast Action: An input method has been changed.
1600     */
1601    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1602    public static final String ACTION_INPUT_METHOD_CHANGED =
1603            "android.intent.action.INPUT_METHOD_CHANGED";
1604
1605    /**
1606     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1607     * more radios have been turned off or on. The intent will have the following extra value:</p>
1608     * <ul>
1609     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1610     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1611     *   turned off</li>
1612     * </ul>
1613     *
1614     * <p class="note">This is a protected intent that can only be sent
1615     * by the system.
1616     */
1617    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1618    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1619
1620    /**
1621     * Broadcast Action: Some content providers have parts of their namespace
1622     * where they publish new events or items that the user may be especially
1623     * interested in. For these things, they may broadcast this action when the
1624     * set of interesting items change.
1625     *
1626     * For example, GmailProvider sends this notification when the set of unread
1627     * mail in the inbox changes.
1628     *
1629     * <p>The data of the intent identifies which part of which provider
1630     * changed. When queried through the content resolver, the data URI will
1631     * return the data set in question.
1632     *
1633     * <p>The intent will have the following extra values:
1634     * <ul>
1635     *   <li><em>count</em> - The number of items in the data set. This is the
1636     *       same as the number of items in the cursor returned by querying the
1637     *       data URI. </li>
1638     * </ul>
1639     *
1640     * This intent will be sent at boot (if the count is non-zero) and when the
1641     * data set changes. It is possible for the data set to change without the
1642     * count changing (for example, if a new unread message arrives in the same
1643     * sync operation in which a message is archived). The phone should still
1644     * ring/vibrate/etc as normal in this case.
1645     */
1646    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1647    public static final String ACTION_PROVIDER_CHANGED =
1648            "android.intent.action.PROVIDER_CHANGED";
1649
1650    /**
1651     * Broadcast Action: Wired Headset plugged in or unplugged.
1652     *
1653     * <p>The intent will have the following extra values:
1654     * <ul>
1655     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1656     *   <li><em>name</em> - Headset type, human readable string </li>
1657     * </ul>
1658     * </ul>
1659     */
1660    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1661    public static final String ACTION_HEADSET_PLUG =
1662            "android.intent.action.HEADSET_PLUG";
1663
1664    /**
1665     * Broadcast Action: An outgoing call is about to be placed.
1666     *
1667     * <p>The Intent will have the following extra value:
1668     * <ul>
1669     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1670     *       the phone number originally intended to be dialed.</li>
1671     * </ul>
1672     * <p>Once the broadcast is finished, the resultData is used as the actual
1673     * number to call.  If  <code>null</code>, no call will be placed.</p>
1674     * <p>It is perfectly acceptable for multiple receivers to process the
1675     * outgoing call in turn: for example, a parental control application
1676     * might verify that the user is authorized to place the call at that
1677     * time, then a number-rewriting application might add an area code if
1678     * one was not specified.</p>
1679     * <p>For consistency, any receiver whose purpose is to prohibit phone
1680     * calls should have a priority of 0, to ensure it will see the final
1681     * phone number to be dialed.
1682     * Any receiver whose purpose is to rewrite phone numbers to be called
1683     * should have a positive priority.
1684     * Negative priorities are reserved for the system for this broadcast;
1685     * using them may cause problems.</p>
1686     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1687     * abort the broadcast.</p>
1688     * <p>Emergency calls cannot be intercepted using this mechanism, and
1689     * other calls cannot be modified to call emergency numbers using this
1690     * mechanism.
1691     * <p>You must hold the
1692     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1693     * permission to receive this Intent.</p>
1694     *
1695     * <p class="note">This is a protected intent that can only be sent
1696     * by the system.
1697     */
1698    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1699    public static final String ACTION_NEW_OUTGOING_CALL =
1700            "android.intent.action.NEW_OUTGOING_CALL";
1701
1702    /**
1703     * Broadcast Action: Have the device reboot.  This is only for use by
1704     * system code.
1705     *
1706     * <p class="note">This is a protected intent that can only be sent
1707     * by the system.
1708     */
1709    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1710    public static final String ACTION_REBOOT =
1711            "android.intent.action.REBOOT";
1712
1713    /**
1714     * Broadcast Action: a remote intent is to be broadcasted.
1715     *
1716     * A remote intent is used for remote RPC between devices. The remote intent
1717     * is serialized and sent from one device to another device. The receiving
1718     * device parses the remote intent and broadcasts it. Note that anyone can
1719     * broadcast a remote intent. However, if the intent receiver of the remote intent
1720     * does not trust intent broadcasts from arbitrary intent senders, it should require
1721     * the sender to hold certain permissions so only trusted sender's broadcast will be
1722     * let through.
1723     */
1724    public static final String ACTION_REMOTE_INTENT =
1725            "android.intent.action.REMOTE_INTENT";
1726
1727    /**
1728     * Broadcast Action: hook for permforming cleanup after a system update.
1729     *
1730     * The broadcast is sent when the system is booting, before the
1731     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1732     * image.  A receiver for this should do its work and then disable itself
1733     * so that it does not get run again at the next boot.
1734     * @hide
1735     */
1736    public static final String ACTION_PRE_BOOT_COMPLETED =
1737            "android.intent.action.PRE_BOOT_COMPLETED";
1738
1739    // ---------------------------------------------------------------------
1740    // ---------------------------------------------------------------------
1741    // Standard intent categories (see addCategory()).
1742
1743    /**
1744     * Set if the activity should be an option for the default action
1745     * (center press) to perform on a piece of data.  Setting this will
1746     * hide from the user any activities without it set when performing an
1747     * action on some data.  Note that this is normal -not- set in the
1748     * Intent when initiating an action -- it is for use in intent filters
1749     * specified in packages.
1750     */
1751    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1752    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1753    /**
1754     * Activities that can be safely invoked from a browser must support this
1755     * category.  For example, if the user is viewing a web page or an e-mail
1756     * and clicks on a link in the text, the Intent generated execute that
1757     * link will require the BROWSABLE category, so that only activities
1758     * supporting this category will be considered as possible actions.  By
1759     * supporting this category, you are promising that there is nothing
1760     * damaging (without user intervention) that can happen by invoking any
1761     * matching Intent.
1762     */
1763    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1764    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1765    /**
1766     * Set if the activity should be considered as an alternative action to
1767     * the data the user is currently viewing.  See also
1768     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1769     * applies to the selection in a list of items.
1770     *
1771     * <p>Supporting this category means that you would like your activity to be
1772     * displayed in the set of alternative things the user can do, usually as
1773     * part of the current activity's options menu.  You will usually want to
1774     * include a specific label in the &lt;intent-filter&gt; of this action
1775     * describing to the user what it does.
1776     *
1777     * <p>The action of IntentFilter with this category is important in that it
1778     * describes the specific action the target will perform.  This generally
1779     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1780     * a specific name such as "com.android.camera.action.CROP.  Only one
1781     * alternative of any particular action will be shown to the user, so using
1782     * a specific action like this makes sure that your alternative will be
1783     * displayed while also allowing other applications to provide their own
1784     * overrides of that particular action.
1785     */
1786    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1787    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1788    /**
1789     * Set if the activity should be considered as an alternative selection
1790     * action to the data the user has currently selected.  This is like
1791     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1792     * of items from which the user can select, giving them alternatives to the
1793     * default action that will be performed on it.
1794     */
1795    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1796    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1797    /**
1798     * Intended to be used as a tab inside of an containing TabActivity.
1799     */
1800    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1801    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1802    /**
1803     * Should be displayed in the top-level launcher.
1804     */
1805    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1806    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1807    /**
1808     * Provides information about the package it is in; typically used if
1809     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1810     * a front-door to the user without having to be shown in the all apps list.
1811     */
1812    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1813    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1814    /**
1815     * This is the home activity, that is the first activity that is displayed
1816     * when the device boots.
1817     */
1818    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1819    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1820    /**
1821     * This activity is a preference panel.
1822     */
1823    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1824    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1825    /**
1826     * This activity is a development preference panel.
1827     */
1828    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1829    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1830    /**
1831     * Capable of running inside a parent activity container.
1832     */
1833    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1834    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1835    /**
1836     * This activity may be exercised by the monkey or other automated test tools.
1837     */
1838    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1839    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1840    /**
1841     * To be used as a test (not part of the normal user experience).
1842     */
1843    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1844    /**
1845     * To be used as a unit test (run through the Test Harness).
1846     */
1847    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1848    /**
1849     * To be used as an sample code example (not part of the normal user
1850     * experience).
1851     */
1852    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1853    /**
1854     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1855     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1856     * when queried, though it is allowable for those columns to be blank.
1857     */
1858    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1859    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1860
1861    /**
1862     * To be used as code under test for framework instrumentation tests.
1863     */
1864    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1865            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1866    /**
1867     * An activity to run when device is inserted into a car dock.
1868    * Used with {@link #ACTION_MAIN} to launch an activity.
1869     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1870     */
1871    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1872    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
1873    /**
1874     * An activity to run when device is inserted into a car dock.
1875     * Used with {@link #ACTION_MAIN} to launch an activity.
1876     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1877     */
1878    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1879    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
1880
1881    /**
1882     * Broadcast Action:  The phone was docked or undocked.  Includes the extra
1883     * field {@link #EXTRA_DOCK_STATE}, containing the current dock state.
1884     * This is intended for monitoring the current dock state.
1885     * To launch an activity from a dock state change, use {@link #CATEGORY_CAR_DOCK}
1886     * or {@link #CATEGORY_DESK_DOCK} instead.
1887     */
1888    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1889    public static final String ACTION_DOCK_EVENT = "android.intent.action.DOCK_EVENT";
1890
1891    // ---------------------------------------------------------------------
1892    // ---------------------------------------------------------------------
1893    // Standard extra data keys.
1894
1895    /**
1896     * The initial data to place in a newly created record.  Use with
1897     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1898     * fields as would be given to the underlying ContentProvider.insert()
1899     * call.
1900     */
1901    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1902
1903    /**
1904     * A constant CharSequence that is associated with the Intent, used with
1905     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1906     * this may be a styled CharSequence, so you must use
1907     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1908     * retrieve it.
1909     */
1910    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1911
1912    /**
1913     * A content: URI holding a stream of data associated with the Intent,
1914     * used with {@link #ACTION_SEND} to supply the data being sent.
1915     */
1916    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1917
1918    /**
1919     * A String[] holding e-mail addresses that should be delivered to.
1920     */
1921    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1922
1923    /**
1924     * A String[] holding e-mail addresses that should be carbon copied.
1925     */
1926    public static final String EXTRA_CC       = "android.intent.extra.CC";
1927
1928    /**
1929     * A String[] holding e-mail addresses that should be blind carbon copied.
1930     */
1931    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1932
1933    /**
1934     * A constant string holding the desired subject line of a message.
1935     */
1936    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1937
1938    /**
1939     * An Intent describing the choices you would like shown with
1940     * {@link #ACTION_PICK_ACTIVITY}.
1941     */
1942    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1943
1944    /**
1945     * A CharSequence dialog title to provide to the user when used with a
1946     * {@link #ACTION_CHOOSER}.
1947     */
1948    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1949
1950    /**
1951     * A Parcelable[] of {@link Intent} or
1952     * {@link android.content.pm.LabeledIntent} objects as set with
1953     * {@link #putExtra(String, Parcelable[])} of additional activities to place
1954     * a the front of the list of choices, when shown to the user with a
1955     * {@link #ACTION_CHOOSER}.
1956     */
1957    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
1958
1959    /**
1960     * A {@link android.view.KeyEvent} object containing the event that
1961     * triggered the creation of the Intent it is in.
1962     */
1963    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1964
1965    /**
1966     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
1967     * before shutting down.
1968     *
1969     * {@hide}
1970     */
1971    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
1972
1973    /**
1974     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1975     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
1976     * of restarting the application.
1977     */
1978    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
1979
1980    /**
1981     * A String holding the phone number originally entered in
1982     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
1983     * number to call in a {@link android.content.Intent#ACTION_CALL}.
1984     */
1985    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
1986    /**
1987     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
1988     * intents to supply the uid the package had been assigned.  Also an optional
1989     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1990     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
1991     * purpose.
1992     */
1993    public static final String EXTRA_UID = "android.intent.extra.UID";
1994
1995    /**
1996     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
1997     * intents to indicate whether this represents a full uninstall (removing
1998     * both the code and its data) or a partial uninstall (leaving its data,
1999     * implying that this is an update).
2000     */
2001    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2002
2003    /**
2004     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2005     * intents to indicate that this is a replacement of the package, so this
2006     * broadcast will immediately be followed by an add broadcast for a
2007     * different version of the same package.
2008     */
2009    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2010
2011    /**
2012     * Used as an int extra field in {@link android.app.AlarmManager} intents
2013     * to tell the application being invoked how many pending alarms are being
2014     * delievered with the intent.  For one-shot alarms this will always be 1.
2015     * For recurring alarms, this might be greater than 1 if the device was
2016     * asleep or powered off at the time an earlier alarm would have been
2017     * delivered.
2018     */
2019    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2020
2021    /**
2022     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2023     * intents to request the dock state.  Possible values are
2024     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2025     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2026     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
2027     */
2028    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2029
2030    /**
2031     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2032     * to represent that the phone is not in any dock.
2033     */
2034    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2035
2036    /**
2037     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2038     * to represent that the phone is in a desk dock.
2039     */
2040    public static final int EXTRA_DOCK_STATE_DESK = 1;
2041
2042    /**
2043     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2044     * to represent that the phone is in a car dock.
2045     */
2046    public static final int EXTRA_DOCK_STATE_CAR = 2;
2047
2048    /**
2049     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2050     * the bug report.
2051     *
2052     * @hide
2053     */
2054    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2055
2056    /**
2057     * Used as a string extra field when sending an intent to PackageInstaller to install a
2058     * package. Specifies the installer package name; this package will receive the
2059     * {@link #ACTION_APP_ERROR} intent.
2060     *
2061     * @hide
2062     */
2063    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2064            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2065
2066    /**
2067     * Used in the extra field in the remote intent. It's astring token passed with the
2068     * remote intent.
2069     */
2070    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2071            "android.intent.extra.remote_intent_token";
2072
2073    /**
2074     * Used as an int extra field in {@link android.content.Intent#ACTION_PACKAGE_CHANGED}
2075     * intent to supply the name of the component that changed.
2076     *
2077     */
2078    public static final String EXTRA_CHANGED_COMPONENT_NAME =
2079            "android.intent.extra.changed_component_name";
2080
2081    /**
2082     * @hide
2083     * Magic extra system code can use when binding, to give a label for
2084     * who it is that has bound to a service.  This is an integer giving
2085     * a framework string resource that can be displayed to the user.
2086     */
2087    public static final String EXTRA_CLIENT_LABEL =
2088            "android.intent.extra.client_label";
2089
2090    /**
2091     * @hide
2092     * Magic extra system code can use when binding, to give a PendingIntent object
2093     * that can be launched for the user to disable the system's use of this
2094     * service.
2095     */
2096    public static final String EXTRA_CLIENT_INTENT =
2097            "android.intent.extra.client_intent";
2098
2099    // ---------------------------------------------------------------------
2100    // ---------------------------------------------------------------------
2101    // Intent flags (see mFlags variable).
2102
2103    /**
2104     * If set, the recipient of this Intent will be granted permission to
2105     * perform read operations on the Uri in the Intent's data.
2106     */
2107    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2108    /**
2109     * If set, the recipient of this Intent will be granted permission to
2110     * perform write operations on the Uri in the Intent's data.
2111     */
2112    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2113    /**
2114     * Can be set by the caller to indicate that this Intent is coming from
2115     * a background operation, not from direct user interaction.
2116     */
2117    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2118    /**
2119     * A flag you can enable for debugging: when set, log messages will be
2120     * printed during the resolution of this intent to show you what has
2121     * been found to create the final resolved list.
2122     */
2123    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2124
2125    /**
2126     * If set, the new activity is not kept in the history stack.  As soon as
2127     * the user navigates away from it, the activity is finished.  This may also
2128     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2129     * noHistory} attribute.
2130     */
2131    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2132    /**
2133     * If set, the activity will not be launched if it is already running
2134     * at the top of the history stack.
2135     */
2136    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2137    /**
2138     * If set, this activity will become the start of a new task on this
2139     * history stack.  A task (from the activity that started it to the
2140     * next task activity) defines an atomic group of activities that the
2141     * user can move to.  Tasks can be moved to the foreground and background;
2142     * all of the activities inside of a particular task always remain in
2143     * the same order.  See
2144     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2145     * Activities and Tasks</a> for more details on tasks.
2146     *
2147     * <p>This flag is generally used by activities that want
2148     * to present a "launcher" style behavior: they give the user a list of
2149     * separate things that can be done, which otherwise run completely
2150     * independently of the activity launching them.
2151     *
2152     * <p>When using this flag, if a task is already running for the activity
2153     * you are now starting, then a new activity will not be started; instead,
2154     * the current task will simply be brought to the front of the screen with
2155     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2156     * to disable this behavior.
2157     *
2158     * <p>This flag can not be used when the caller is requesting a result from
2159     * the activity being launched.
2160     */
2161    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2162    /**
2163     * <strong>Do not use this flag unless you are implementing your own
2164     * top-level application launcher.</strong>  Used in conjunction with
2165     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2166     * behavior of bringing an existing task to the foreground.  When set,
2167     * a new task is <em>always</em> started to host the Activity for the
2168     * Intent, regardless of whether there is already an existing task running
2169     * the same thing.
2170     *
2171     * <p><strong>Because the default system does not include graphical task management,
2172     * you should not use this flag unless you provide some way for a user to
2173     * return back to the tasks you have launched.</strong>
2174     *
2175     * <p>This flag is ignored if
2176     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2177     *
2178     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2179     * Activities and Tasks</a> for more details on tasks.
2180     */
2181    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2182    /**
2183     * If set, and the activity being launched is already running in the
2184     * current task, then instead of launching a new instance of that activity,
2185     * all of the other activities on top of it will be closed and this Intent
2186     * will be delivered to the (now on top) old activity as a new Intent.
2187     *
2188     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2189     * If D calls startActivity() with an Intent that resolves to the component
2190     * of activity B, then C and D will be finished and B receive the given
2191     * Intent, resulting in the stack now being: A, B.
2192     *
2193     * <p>The currently running instance of activity B in the above example will
2194     * either receive the new intent you are starting here in its
2195     * onNewIntent() method, or be itself finished and restarted with the
2196     * new intent.  If it has declared its launch mode to be "multiple" (the
2197     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2198     * the same intent, then it will be finished and re-created; for all other
2199     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2200     * Intent will be delivered to the current instance's onNewIntent().
2201     *
2202     * <p>This launch mode can also be used to good effect in conjunction with
2203     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2204     * of a task, it will bring any currently running instance of that task
2205     * to the foreground, and then clear it to its root state.  This is
2206     * especially useful, for example, when launching an activity from the
2207     * notification manager.
2208     *
2209     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2210     * Activities and Tasks</a> for more details on tasks.
2211     */
2212    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2213    /**
2214     * If set and this intent is being used to launch a new activity from an
2215     * existing one, then the reply target of the existing activity will be
2216     * transfered to the new activity.  This way the new activity can call
2217     * {@link android.app.Activity#setResult} and have that result sent back to
2218     * the reply target of the original activity.
2219     */
2220    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2221    /**
2222     * If set and this intent is being used to launch a new activity from an
2223     * existing one, the current activity will not be counted as the top
2224     * activity for deciding whether the new intent should be delivered to
2225     * the top instead of starting a new one.  The previous activity will
2226     * be used as the top, with the assumption being that the current activity
2227     * will finish itself immediately.
2228     */
2229    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2230    /**
2231     * If set, the new activity is not kept in the list of recently launched
2232     * activities.
2233     */
2234    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2235    /**
2236     * This flag is not normally set by application code, but set for you by
2237     * the system as described in the
2238     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2239     * launchMode} documentation for the singleTask mode.
2240     */
2241    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2242    /**
2243     * If set, and this activity is either being started in a new task or
2244     * bringing to the top an existing task, then it will be launched as
2245     * the front door of the task.  This will result in the application of
2246     * any affinities needed to have that task in the proper state (either
2247     * moving activities to or from it), or simply resetting that task to
2248     * its initial state if needed.
2249     */
2250    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2251    /**
2252     * This flag is not normally set by application code, but set for you by
2253     * the system if this activity is being launched from history
2254     * (longpress home key).
2255     */
2256    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2257    /**
2258     * If set, this marks a point in the task's activity stack that should
2259     * be cleared when the task is reset.  That is, the next time the task
2260     * is brought to the foreground with
2261     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2262     * the user re-launching it from home), this activity and all on top of
2263     * it will be finished so that the user does not return to them, but
2264     * instead returns to whatever activity preceeded it.
2265     *
2266     * <p>This is useful for cases where you have a logical break in your
2267     * application.  For example, an e-mail application may have a command
2268     * to view an attachment, which launches an image view activity to
2269     * display it.  This activity should be part of the e-mail application's
2270     * task, since it is a part of the task the user is involved in.  However,
2271     * if the user leaves that task, and later selects the e-mail app from
2272     * home, we may like them to return to the conversation they were
2273     * viewing, not the picture attachment, since that is confusing.  By
2274     * setting this flag when launching the image viewer, that viewer and
2275     * any activities it starts will be removed the next time the user returns
2276     * to mail.
2277     */
2278    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2279    /**
2280     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2281     * callback from occurring on the current frontmost activity before it is
2282     * paused as the newly-started activity is brought to the front.
2283     *
2284     * <p>Typically, an activity can rely on that callback to indicate that an
2285     * explicit user action has caused their activity to be moved out of the
2286     * foreground. The callback marks an appropriate point in the activity's
2287     * lifecycle for it to dismiss any notifications that it intends to display
2288     * "until the user has seen them," such as a blinking LED.
2289     *
2290     * <p>If an activity is ever started via any non-user-driven events such as
2291     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2292     * Context#startActivity Context.startActivity}, ensuring that the pausing
2293     * activity does not think the user has acknowledged its notification.
2294     */
2295    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2296    /**
2297     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2298     * this flag will cause the launched activity to be brought to the front of its
2299     * task's history stack if it is already running.
2300     *
2301     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2302     * If D calls startActivity() with an Intent that resolves to the component
2303     * of activity B, then B will be brought to the front of the history stack,
2304     * with this resulting order:  A, C, D, B.
2305     *
2306     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2307     * specified.
2308     */
2309    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2310    /**
2311     * If set, when sending a broadcast only registered receivers will be
2312     * called -- no BroadcastReceiver components will be launched.
2313     */
2314    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2315    /**
2316     * If set, when sending a broadcast <i>before boot has completed</i> only
2317     * registered receivers will be called -- no BroadcastReceiver components
2318     * will be launched.  Sticky intent state will be recorded properly even
2319     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2320     * is specified in the broadcast intent, this flag is unnecessary.
2321     *
2322     * <p>This flag is only for use by system sevices as a convenience to
2323     * avoid having to implement a more complex mechanism around detection
2324     * of boot completion.
2325     *
2326     * @hide
2327     */
2328    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2329    /**
2330     * Set when this broadcast is for a boot upgrade, a special mode that
2331     * allows the broadcast to be sent before the system is ready and launches
2332     * the app process with no providers running in it.
2333     * @hide
2334     */
2335    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x10000000;
2336
2337    /**
2338     * @hide Flags that can't be changed with PendingIntent.
2339     */
2340    public static final int IMMUTABLE_FLAGS =
2341            FLAG_GRANT_READ_URI_PERMISSION
2342            | FLAG_GRANT_WRITE_URI_PERMISSION;
2343
2344    // ---------------------------------------------------------------------
2345    // ---------------------------------------------------------------------
2346    // toUri() and parseUri() options.
2347
2348    /**
2349     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2350     * always has the "intent:" scheme.  This syntax can be used when you want
2351     * to later disambiguate between URIs that are intended to describe an
2352     * Intent vs. all others that should be treated as raw URIs.  When used
2353     * with {@link #parseUri}, any other scheme will result in a generic
2354     * VIEW action for that raw URI.
2355     */
2356    public static final int URI_INTENT_SCHEME = 1<<0;
2357
2358    // ---------------------------------------------------------------------
2359
2360    private String mAction;
2361    private Uri mData;
2362    private String mType;
2363    private String mPackage;
2364    private ComponentName mComponent;
2365    private int mFlags;
2366    private HashSet<String> mCategories;
2367    private Bundle mExtras;
2368
2369    // ---------------------------------------------------------------------
2370
2371    /**
2372     * Create an empty intent.
2373     */
2374    public Intent() {
2375    }
2376
2377    /**
2378     * Copy constructor.
2379     */
2380    public Intent(Intent o) {
2381        this.mAction = o.mAction;
2382        this.mData = o.mData;
2383        this.mType = o.mType;
2384        this.mPackage = o.mPackage;
2385        this.mComponent = o.mComponent;
2386        this.mFlags = o.mFlags;
2387        if (o.mCategories != null) {
2388            this.mCategories = new HashSet<String>(o.mCategories);
2389        }
2390        if (o.mExtras != null) {
2391            this.mExtras = new Bundle(o.mExtras);
2392        }
2393    }
2394
2395    @Override
2396    public Object clone() {
2397        return new Intent(this);
2398    }
2399
2400    private Intent(Intent o, boolean all) {
2401        this.mAction = o.mAction;
2402        this.mData = o.mData;
2403        this.mType = o.mType;
2404        this.mPackage = o.mPackage;
2405        this.mComponent = o.mComponent;
2406        if (o.mCategories != null) {
2407            this.mCategories = new HashSet<String>(o.mCategories);
2408        }
2409    }
2410
2411    /**
2412     * Make a clone of only the parts of the Intent that are relevant for
2413     * filter matching: the action, data, type, component, and categories.
2414     */
2415    public Intent cloneFilter() {
2416        return new Intent(this, false);
2417    }
2418
2419    /**
2420     * Create an intent with a given action.  All other fields (data, type,
2421     * class) are null.  Note that the action <em>must</em> be in a
2422     * namespace because Intents are used globally in the system -- for
2423     * example the system VIEW action is android.intent.action.VIEW; an
2424     * application's custom action would be something like
2425     * com.google.app.myapp.CUSTOM_ACTION.
2426     *
2427     * @param action The Intent action, such as ACTION_VIEW.
2428     */
2429    public Intent(String action) {
2430        mAction = action;
2431    }
2432
2433    /**
2434     * Create an intent with a given action and for a given data url.  Note
2435     * that the action <em>must</em> be in a namespace because Intents are
2436     * used globally in the system -- for example the system VIEW action is
2437     * android.intent.action.VIEW; an application's custom action would be
2438     * something like com.google.app.myapp.CUSTOM_ACTION.
2439     *
2440     * <p><em>Note: scheme and host name matching in the Android framework is
2441     * case-sensitive, unlike the formal RFC.  As a result,
2442     * you should always ensure that you write your Uri with these elements
2443     * using lower case letters, and normalize any Uris you receive from
2444     * outside of Android to ensure the scheme and host is lower case.</em></p>
2445     *
2446     * @param action The Intent action, such as ACTION_VIEW.
2447     * @param uri The Intent data URI.
2448     */
2449    public Intent(String action, Uri uri) {
2450        mAction = action;
2451        mData = uri;
2452    }
2453
2454    /**
2455     * Create an intent for a specific component.  All other fields (action, data,
2456     * type, class) are null, though they can be modified later with explicit
2457     * calls.  This provides a convenient way to create an intent that is
2458     * intended to execute a hard-coded class name, rather than relying on the
2459     * system to find an appropriate class for you; see {@link #setComponent}
2460     * for more information on the repercussions of this.
2461     *
2462     * @param packageContext A Context of the application package implementing
2463     * this class.
2464     * @param cls The component class that is to be used for the intent.
2465     *
2466     * @see #setClass
2467     * @see #setComponent
2468     * @see #Intent(String, android.net.Uri , Context, Class)
2469     */
2470    public Intent(Context packageContext, Class<?> cls) {
2471        mComponent = new ComponentName(packageContext, cls);
2472    }
2473
2474    /**
2475     * Create an intent for a specific component with a specified action and data.
2476     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2477     * construct the Intent and then calling {@link #setClass} to set its
2478     * class.
2479     *
2480     * <p><em>Note: scheme and host name matching in the Android framework is
2481     * case-sensitive, unlike the formal RFC.  As a result,
2482     * you should always ensure that you write your Uri with these elements
2483     * using lower case letters, and normalize any Uris you receive from
2484     * outside of Android to ensure the scheme and host is lower case.</em></p>
2485     *
2486     * @param action The Intent action, such as ACTION_VIEW.
2487     * @param uri The Intent data URI.
2488     * @param packageContext A Context of the application package implementing
2489     * this class.
2490     * @param cls The component class that is to be used for the intent.
2491     *
2492     * @see #Intent(String, android.net.Uri)
2493     * @see #Intent(Context, Class)
2494     * @see #setClass
2495     * @see #setComponent
2496     */
2497    public Intent(String action, Uri uri,
2498            Context packageContext, Class<?> cls) {
2499        mAction = action;
2500        mData = uri;
2501        mComponent = new ComponentName(packageContext, cls);
2502    }
2503
2504    /**
2505     * Call {@link #parseUri} with 0 flags.
2506     * @deprecated Use {@link #parseUri} instead.
2507     */
2508    @Deprecated
2509    public static Intent getIntent(String uri) throws URISyntaxException {
2510        return parseUri(uri, 0);
2511    }
2512
2513    /**
2514     * Create an intent from a URI.  This URI may encode the action,
2515     * category, and other intent fields, if it was returned by
2516     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2517     * will be the entire URI and its action will be ACTION_VIEW.
2518     *
2519     * <p>The URI given here must not be relative -- that is, it must include
2520     * the scheme and full path.
2521     *
2522     * @param uri The URI to turn into an Intent.
2523     * @param flags Additional processing flags.  Either 0 or
2524     *
2525     * @return Intent The newly created Intent object.
2526     *
2527     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2528     * it bad (as parsed by the Uri class) or the Intent data within the
2529     * URI is invalid.
2530     *
2531     * @see #toUri
2532     */
2533    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2534        int i = 0;
2535        try {
2536            // Validate intent scheme for if requested.
2537            if ((flags&URI_INTENT_SCHEME) != 0) {
2538                if (!uri.startsWith("intent:")) {
2539                    Intent intent = new Intent(ACTION_VIEW);
2540                    try {
2541                        intent.setData(Uri.parse(uri));
2542                    } catch (IllegalArgumentException e) {
2543                        throw new URISyntaxException(uri, e.getMessage());
2544                    }
2545                    return intent;
2546                }
2547            }
2548
2549            // simple case
2550            i = uri.lastIndexOf("#");
2551            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2552
2553            // old format Intent URI
2554            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2555
2556            // new format
2557            Intent intent = new Intent(ACTION_VIEW);
2558
2559            // fetch data part, if present
2560            String data = i >= 0 ? uri.substring(0, i) : null;
2561            String scheme = null;
2562            i += "#Intent;".length();
2563
2564            // loop over contents of Intent, all name=value;
2565            while (!uri.startsWith("end", i)) {
2566                int eq = uri.indexOf('=', i);
2567                int semi = uri.indexOf(';', eq);
2568                String value = Uri.decode(uri.substring(eq + 1, semi));
2569
2570                // action
2571                if (uri.startsWith("action=", i)) {
2572                    intent.mAction = value;
2573                }
2574
2575                // categories
2576                else if (uri.startsWith("category=", i)) {
2577                    intent.addCategory(value);
2578                }
2579
2580                // type
2581                else if (uri.startsWith("type=", i)) {
2582                    intent.mType = value;
2583                }
2584
2585                // launch  flags
2586                else if (uri.startsWith("launchFlags=", i)) {
2587                    intent.mFlags = Integer.decode(value).intValue();
2588                }
2589
2590                // package
2591                else if (uri.startsWith("package=", i)) {
2592                    intent.mPackage = value;
2593                }
2594
2595                // component
2596                else if (uri.startsWith("component=", i)) {
2597                    intent.mComponent = ComponentName.unflattenFromString(value);
2598                }
2599
2600                // scheme
2601                else if (uri.startsWith("scheme=", i)) {
2602                    scheme = value;
2603                }
2604
2605                // extra
2606                else {
2607                    String key = Uri.decode(uri.substring(i + 2, eq));
2608                    // create Bundle if it doesn't already exist
2609                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2610                    Bundle b = intent.mExtras;
2611                    // add EXTRA
2612                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2613                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2614                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2615                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2616                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2617                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2618                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2619                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2620                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2621                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2622                }
2623
2624                // move to the next item
2625                i = semi + 1;
2626            }
2627
2628            if (data != null) {
2629                if (data.startsWith("intent:")) {
2630                    data = data.substring(7);
2631                    if (scheme != null) {
2632                        data = scheme + ':' + data;
2633                    }
2634                }
2635
2636                if (data.length() > 0) {
2637                    try {
2638                        intent.mData = Uri.parse(data);
2639                    } catch (IllegalArgumentException e) {
2640                        throw new URISyntaxException(uri, e.getMessage());
2641                    }
2642                }
2643            }
2644
2645            return intent;
2646
2647        } catch (IndexOutOfBoundsException e) {
2648            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2649        }
2650    }
2651
2652    public static Intent getIntentOld(String uri) throws URISyntaxException {
2653        Intent intent;
2654
2655        int i = uri.lastIndexOf('#');
2656        if (i >= 0) {
2657            Uri data = null;
2658            String action = null;
2659            if (i > 0) {
2660                data = Uri.parse(uri.substring(0, i));
2661            }
2662
2663            i++;
2664
2665            if (uri.regionMatches(i, "action(", 0, 7)) {
2666                i += 7;
2667                int j = uri.indexOf(')', i);
2668                action = uri.substring(i, j);
2669                i = j + 1;
2670            }
2671
2672            intent = new Intent(action, data);
2673
2674            if (uri.regionMatches(i, "categories(", 0, 11)) {
2675                i += 11;
2676                int j = uri.indexOf(')', i);
2677                while (i < j) {
2678                    int sep = uri.indexOf('!', i);
2679                    if (sep < 0) sep = j;
2680                    if (i < sep) {
2681                        intent.addCategory(uri.substring(i, sep));
2682                    }
2683                    i = sep + 1;
2684                }
2685                i = j + 1;
2686            }
2687
2688            if (uri.regionMatches(i, "type(", 0, 5)) {
2689                i += 5;
2690                int j = uri.indexOf(')', i);
2691                intent.mType = uri.substring(i, j);
2692                i = j + 1;
2693            }
2694
2695            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2696                i += 12;
2697                int j = uri.indexOf(')', i);
2698                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2699                i = j + 1;
2700            }
2701
2702            if (uri.regionMatches(i, "component(", 0, 10)) {
2703                i += 10;
2704                int j = uri.indexOf(')', i);
2705                int sep = uri.indexOf('!', i);
2706                if (sep >= 0 && sep < j) {
2707                    String pkg = uri.substring(i, sep);
2708                    String cls = uri.substring(sep + 1, j);
2709                    intent.mComponent = new ComponentName(pkg, cls);
2710                }
2711                i = j + 1;
2712            }
2713
2714            if (uri.regionMatches(i, "extras(", 0, 7)) {
2715                i += 7;
2716
2717                final int closeParen = uri.indexOf(')', i);
2718                if (closeParen == -1) throw new URISyntaxException(uri,
2719                        "EXTRA missing trailing ')'", i);
2720
2721                while (i < closeParen) {
2722                    // fetch the key value
2723                    int j = uri.indexOf('=', i);
2724                    if (j <= i + 1 || i >= closeParen) {
2725                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2726                    }
2727                    char type = uri.charAt(i);
2728                    i++;
2729                    String key = uri.substring(i, j);
2730                    i = j + 1;
2731
2732                    // get type-value
2733                    j = uri.indexOf('!', i);
2734                    if (j == -1 || j >= closeParen) j = closeParen;
2735                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2736                    String value = uri.substring(i, j);
2737                    i = j;
2738
2739                    // create Bundle if it doesn't already exist
2740                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2741
2742                    // add item to bundle
2743                    try {
2744                        switch (type) {
2745                            case 'S':
2746                                intent.mExtras.putString(key, Uri.decode(value));
2747                                break;
2748                            case 'B':
2749                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2750                                break;
2751                            case 'b':
2752                                intent.mExtras.putByte(key, Byte.parseByte(value));
2753                                break;
2754                            case 'c':
2755                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2756                                break;
2757                            case 'd':
2758                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2759                                break;
2760                            case 'f':
2761                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2762                                break;
2763                            case 'i':
2764                                intent.mExtras.putInt(key, Integer.parseInt(value));
2765                                break;
2766                            case 'l':
2767                                intent.mExtras.putLong(key, Long.parseLong(value));
2768                                break;
2769                            case 's':
2770                                intent.mExtras.putShort(key, Short.parseShort(value));
2771                                break;
2772                            default:
2773                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2774                        }
2775                    } catch (NumberFormatException e) {
2776                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2777                    }
2778
2779                    char ch = uri.charAt(i);
2780                    if (ch == ')') break;
2781                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2782                    i++;
2783                }
2784            }
2785
2786            if (intent.mAction == null) {
2787                // By default, if no action is specified, then use VIEW.
2788                intent.mAction = ACTION_VIEW;
2789            }
2790
2791        } else {
2792            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2793        }
2794
2795        return intent;
2796    }
2797
2798    /**
2799     * Retrieve the general action to be performed, such as
2800     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2801     * the information in the intent should be interpreted -- most importantly,
2802     * what to do with the data returned by {@link #getData}.
2803     *
2804     * @return The action of this intent or null if none is specified.
2805     *
2806     * @see #setAction
2807     */
2808    public String getAction() {
2809        return mAction;
2810    }
2811
2812    /**
2813     * Retrieve data this intent is operating on.  This URI specifies the name
2814     * of the data; often it uses the content: scheme, specifying data in a
2815     * content provider.  Other schemes may be handled by specific activities,
2816     * such as http: by the web browser.
2817     *
2818     * @return The URI of the data this intent is targeting or null.
2819     *
2820     * @see #getScheme
2821     * @see #setData
2822     */
2823    public Uri getData() {
2824        return mData;
2825    }
2826
2827    /**
2828     * The same as {@link #getData()}, but returns the URI as an encoded
2829     * String.
2830     */
2831    public String getDataString() {
2832        return mData != null ? mData.toString() : null;
2833    }
2834
2835    /**
2836     * Return the scheme portion of the intent's data.  If the data is null or
2837     * does not include a scheme, null is returned.  Otherwise, the scheme
2838     * prefix without the final ':' is returned, i.e. "http".
2839     *
2840     * <p>This is the same as calling getData().getScheme() (and checking for
2841     * null data).
2842     *
2843     * @return The scheme of this intent.
2844     *
2845     * @see #getData
2846     */
2847    public String getScheme() {
2848        return mData != null ? mData.getScheme() : null;
2849    }
2850
2851    /**
2852     * Retrieve any explicit MIME type included in the intent.  This is usually
2853     * null, as the type is determined by the intent data.
2854     *
2855     * @return If a type was manually set, it is returned; else null is
2856     *         returned.
2857     *
2858     * @see #resolveType(ContentResolver)
2859     * @see #setType
2860     */
2861    public String getType() {
2862        return mType;
2863    }
2864
2865    /**
2866     * Return the MIME data type of this intent.  If the type field is
2867     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2868     * the type of that data is returned.  If neither fields are set, a null is
2869     * returned.
2870     *
2871     * @return The MIME type of this intent.
2872     *
2873     * @see #getType
2874     * @see #resolveType(ContentResolver)
2875     */
2876    public String resolveType(Context context) {
2877        return resolveType(context.getContentResolver());
2878    }
2879
2880    /**
2881     * Return the MIME data type of this intent.  If the type field is
2882     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2883     * the type of that data is returned.  If neither fields are set, a null is
2884     * returned.
2885     *
2886     * @param resolver A ContentResolver that can be used to determine the MIME
2887     *                 type of the intent's data.
2888     *
2889     * @return The MIME type of this intent.
2890     *
2891     * @see #getType
2892     * @see #resolveType(Context)
2893     */
2894    public String resolveType(ContentResolver resolver) {
2895        if (mType != null) {
2896            return mType;
2897        }
2898        if (mData != null) {
2899            if ("content".equals(mData.getScheme())) {
2900                return resolver.getType(mData);
2901            }
2902        }
2903        return null;
2904    }
2905
2906    /**
2907     * Return the MIME data type of this intent, only if it will be needed for
2908     * intent resolution.  This is not generally useful for application code;
2909     * it is used by the frameworks for communicating with back-end system
2910     * services.
2911     *
2912     * @param resolver A ContentResolver that can be used to determine the MIME
2913     *                 type of the intent's data.
2914     *
2915     * @return The MIME type of this intent, or null if it is unknown or not
2916     *         needed.
2917     */
2918    public String resolveTypeIfNeeded(ContentResolver resolver) {
2919        if (mComponent != null) {
2920            return mType;
2921        }
2922        return resolveType(resolver);
2923    }
2924
2925    /**
2926     * Check if an category exists in the intent.
2927     *
2928     * @param category The category to check.
2929     *
2930     * @return boolean True if the intent contains the category, else false.
2931     *
2932     * @see #getCategories
2933     * @see #addCategory
2934     */
2935    public boolean hasCategory(String category) {
2936        return mCategories != null && mCategories.contains(category);
2937    }
2938
2939    /**
2940     * Return the set of all categories in the intent.  If there are no categories,
2941     * returns NULL.
2942     *
2943     * @return Set The set of categories you can examine.  Do not modify!
2944     *
2945     * @see #hasCategory
2946     * @see #addCategory
2947     */
2948    public Set<String> getCategories() {
2949        return mCategories;
2950    }
2951
2952    /**
2953     * Sets the ClassLoader that will be used when unmarshalling
2954     * any Parcelable values from the extras of this Intent.
2955     *
2956     * @param loader a ClassLoader, or null to use the default loader
2957     * at the time of unmarshalling.
2958     */
2959    public void setExtrasClassLoader(ClassLoader loader) {
2960        if (mExtras != null) {
2961            mExtras.setClassLoader(loader);
2962        }
2963    }
2964
2965    /**
2966     * Returns true if an extra value is associated with the given name.
2967     * @param name the extra's name
2968     * @return true if the given extra is present.
2969     */
2970    public boolean hasExtra(String name) {
2971        return mExtras != null && mExtras.containsKey(name);
2972    }
2973
2974    /**
2975     * Returns true if the Intent's extras contain a parcelled file descriptor.
2976     * @return true if the Intent contains a parcelled file descriptor.
2977     */
2978    public boolean hasFileDescriptors() {
2979        return mExtras != null && mExtras.hasFileDescriptors();
2980    }
2981
2982    /**
2983     * Retrieve extended data from the intent.
2984     *
2985     * @param name The name of the desired item.
2986     *
2987     * @return the value of an item that previously added with putExtra()
2988     * or null if none was found.
2989     *
2990     * @deprecated
2991     * @hide
2992     */
2993    @Deprecated
2994    public Object getExtra(String name) {
2995        return getExtra(name, null);
2996    }
2997
2998    /**
2999     * Retrieve extended data from the intent.
3000     *
3001     * @param name The name of the desired item.
3002     * @param defaultValue the value to be returned if no value of the desired
3003     * type is stored with the given name.
3004     *
3005     * @return the value of an item that previously added with putExtra()
3006     * or the default value if none was found.
3007     *
3008     * @see #putExtra(String, boolean)
3009     */
3010    public boolean getBooleanExtra(String name, boolean defaultValue) {
3011        return mExtras == null ? defaultValue :
3012            mExtras.getBoolean(name, defaultValue);
3013    }
3014
3015    /**
3016     * Retrieve extended data from the intent.
3017     *
3018     * @param name The name of the desired item.
3019     * @param defaultValue the value to be returned if no value of the desired
3020     * type is stored with the given name.
3021     *
3022     * @return the value of an item that previously added with putExtra()
3023     * or the default value if none was found.
3024     *
3025     * @see #putExtra(String, byte)
3026     */
3027    public byte getByteExtra(String name, byte defaultValue) {
3028        return mExtras == null ? defaultValue :
3029            mExtras.getByte(name, defaultValue);
3030    }
3031
3032    /**
3033     * Retrieve extended data from the intent.
3034     *
3035     * @param name The name of the desired item.
3036     * @param defaultValue the value to be returned if no value of the desired
3037     * type is stored with the given name.
3038     *
3039     * @return the value of an item that previously added with putExtra()
3040     * or the default value if none was found.
3041     *
3042     * @see #putExtra(String, short)
3043     */
3044    public short getShortExtra(String name, short defaultValue) {
3045        return mExtras == null ? defaultValue :
3046            mExtras.getShort(name, defaultValue);
3047    }
3048
3049    /**
3050     * Retrieve extended data from the intent.
3051     *
3052     * @param name The name of the desired item.
3053     * @param defaultValue the value to be returned if no value of the desired
3054     * type is stored with the given name.
3055     *
3056     * @return the value of an item that previously added with putExtra()
3057     * or the default value if none was found.
3058     *
3059     * @see #putExtra(String, char)
3060     */
3061    public char getCharExtra(String name, char defaultValue) {
3062        return mExtras == null ? defaultValue :
3063            mExtras.getChar(name, defaultValue);
3064    }
3065
3066    /**
3067     * Retrieve extended data from the intent.
3068     *
3069     * @param name The name of the desired item.
3070     * @param defaultValue the value to be returned if no value of the desired
3071     * type is stored with the given name.
3072     *
3073     * @return the value of an item that previously added with putExtra()
3074     * or the default value if none was found.
3075     *
3076     * @see #putExtra(String, int)
3077     */
3078    public int getIntExtra(String name, int defaultValue) {
3079        return mExtras == null ? defaultValue :
3080            mExtras.getInt(name, defaultValue);
3081    }
3082
3083    /**
3084     * Retrieve extended data from the intent.
3085     *
3086     * @param name The name of the desired item.
3087     * @param defaultValue the value to be returned if no value of the desired
3088     * type is stored with the given name.
3089     *
3090     * @return the value of an item that previously added with putExtra()
3091     * or the default value if none was found.
3092     *
3093     * @see #putExtra(String, long)
3094     */
3095    public long getLongExtra(String name, long defaultValue) {
3096        return mExtras == null ? defaultValue :
3097            mExtras.getLong(name, defaultValue);
3098    }
3099
3100    /**
3101     * Retrieve extended data from the intent.
3102     *
3103     * @param name The name of the desired item.
3104     * @param defaultValue the value to be returned if no value of the desired
3105     * type is stored with the given name.
3106     *
3107     * @return the value of an item that previously added with putExtra(),
3108     * or the default value if no such item is present
3109     *
3110     * @see #putExtra(String, float)
3111     */
3112    public float getFloatExtra(String name, float defaultValue) {
3113        return mExtras == null ? defaultValue :
3114            mExtras.getFloat(name, defaultValue);
3115    }
3116
3117    /**
3118     * Retrieve extended data from the intent.
3119     *
3120     * @param name The name of the desired item.
3121     * @param defaultValue the value to be returned if no value of the desired
3122     * type is stored with the given name.
3123     *
3124     * @return the value of an item that previously added with putExtra()
3125     * or the default value if none was found.
3126     *
3127     * @see #putExtra(String, double)
3128     */
3129    public double getDoubleExtra(String name, double defaultValue) {
3130        return mExtras == null ? defaultValue :
3131            mExtras.getDouble(name, defaultValue);
3132    }
3133
3134    /**
3135     * Retrieve extended data from the intent.
3136     *
3137     * @param name The name of the desired item.
3138     *
3139     * @return the value of an item that previously added with putExtra()
3140     * or null if no String value was found.
3141     *
3142     * @see #putExtra(String, String)
3143     */
3144    public String getStringExtra(String name) {
3145        return mExtras == null ? null : mExtras.getString(name);
3146    }
3147
3148    /**
3149     * Retrieve extended data from the intent.
3150     *
3151     * @param name The name of the desired item.
3152     *
3153     * @return the value of an item that previously added with putExtra()
3154     * or null if no CharSequence value was found.
3155     *
3156     * @see #putExtra(String, CharSequence)
3157     */
3158    public CharSequence getCharSequenceExtra(String name) {
3159        return mExtras == null ? null : mExtras.getCharSequence(name);
3160    }
3161
3162    /**
3163     * Retrieve extended data from the intent.
3164     *
3165     * @param name The name of the desired item.
3166     *
3167     * @return the value of an item that previously added with putExtra()
3168     * or null if no Parcelable value was found.
3169     *
3170     * @see #putExtra(String, Parcelable)
3171     */
3172    public <T extends Parcelable> T getParcelableExtra(String name) {
3173        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3174    }
3175
3176    /**
3177     * Retrieve extended data from the intent.
3178     *
3179     * @param name The name of the desired item.
3180     *
3181     * @return the value of an item that previously added with putExtra()
3182     * or null if no Parcelable[] value was found.
3183     *
3184     * @see #putExtra(String, Parcelable[])
3185     */
3186    public Parcelable[] getParcelableArrayExtra(String name) {
3187        return mExtras == null ? null : mExtras.getParcelableArray(name);
3188    }
3189
3190    /**
3191     * Retrieve extended data from the intent.
3192     *
3193     * @param name The name of the desired item.
3194     *
3195     * @return the value of an item that previously added with putExtra()
3196     * or null if no ArrayList<Parcelable> value was found.
3197     *
3198     * @see #putParcelableArrayListExtra(String, ArrayList)
3199     */
3200    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3201        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3202    }
3203
3204    /**
3205     * Retrieve extended data from the intent.
3206     *
3207     * @param name The name of the desired item.
3208     *
3209     * @return the value of an item that previously added with putExtra()
3210     * or null if no Serializable value was found.
3211     *
3212     * @see #putExtra(String, Serializable)
3213     */
3214    public Serializable getSerializableExtra(String name) {
3215        return mExtras == null ? null : mExtras.getSerializable(name);
3216    }
3217
3218    /**
3219     * Retrieve extended data from the intent.
3220     *
3221     * @param name The name of the desired item.
3222     *
3223     * @return the value of an item that previously added with putExtra()
3224     * or null if no ArrayList<Integer> value was found.
3225     *
3226     * @see #putIntegerArrayListExtra(String, ArrayList)
3227     */
3228    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3229        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3230    }
3231
3232    /**
3233     * Retrieve extended data from the intent.
3234     *
3235     * @param name The name of the desired item.
3236     *
3237     * @return the value of an item that previously added with putExtra()
3238     * or null if no ArrayList<String> value was found.
3239     *
3240     * @see #putStringArrayListExtra(String, ArrayList)
3241     */
3242    public ArrayList<String> getStringArrayListExtra(String name) {
3243        return mExtras == null ? null : mExtras.getStringArrayList(name);
3244    }
3245
3246    /**
3247     * Retrieve extended data from the intent.
3248     *
3249     * @param name The name of the desired item.
3250     *
3251     * @return the value of an item that previously added with putExtra()
3252     * or null if no boolean array value was found.
3253     *
3254     * @see #putExtra(String, boolean[])
3255     */
3256    public boolean[] getBooleanArrayExtra(String name) {
3257        return mExtras == null ? null : mExtras.getBooleanArray(name);
3258    }
3259
3260    /**
3261     * Retrieve extended data from the intent.
3262     *
3263     * @param name The name of the desired item.
3264     *
3265     * @return the value of an item that previously added with putExtra()
3266     * or null if no byte array value was found.
3267     *
3268     * @see #putExtra(String, byte[])
3269     */
3270    public byte[] getByteArrayExtra(String name) {
3271        return mExtras == null ? null : mExtras.getByteArray(name);
3272    }
3273
3274    /**
3275     * Retrieve extended data from the intent.
3276     *
3277     * @param name The name of the desired item.
3278     *
3279     * @return the value of an item that previously added with putExtra()
3280     * or null if no short array value was found.
3281     *
3282     * @see #putExtra(String, short[])
3283     */
3284    public short[] getShortArrayExtra(String name) {
3285        return mExtras == null ? null : mExtras.getShortArray(name);
3286    }
3287
3288    /**
3289     * Retrieve extended data from the intent.
3290     *
3291     * @param name The name of the desired item.
3292     *
3293     * @return the value of an item that previously added with putExtra()
3294     * or null if no char array value was found.
3295     *
3296     * @see #putExtra(String, char[])
3297     */
3298    public char[] getCharArrayExtra(String name) {
3299        return mExtras == null ? null : mExtras.getCharArray(name);
3300    }
3301
3302    /**
3303     * Retrieve extended data from the intent.
3304     *
3305     * @param name The name of the desired item.
3306     *
3307     * @return the value of an item that previously added with putExtra()
3308     * or null if no int array value was found.
3309     *
3310     * @see #putExtra(String, int[])
3311     */
3312    public int[] getIntArrayExtra(String name) {
3313        return mExtras == null ? null : mExtras.getIntArray(name);
3314    }
3315
3316    /**
3317     * Retrieve extended data from the intent.
3318     *
3319     * @param name The name of the desired item.
3320     *
3321     * @return the value of an item that previously added with putExtra()
3322     * or null if no long array value was found.
3323     *
3324     * @see #putExtra(String, long[])
3325     */
3326    public long[] getLongArrayExtra(String name) {
3327        return mExtras == null ? null : mExtras.getLongArray(name);
3328    }
3329
3330    /**
3331     * Retrieve extended data from the intent.
3332     *
3333     * @param name The name of the desired item.
3334     *
3335     * @return the value of an item that previously added with putExtra()
3336     * or null if no float array value was found.
3337     *
3338     * @see #putExtra(String, float[])
3339     */
3340    public float[] getFloatArrayExtra(String name) {
3341        return mExtras == null ? null : mExtras.getFloatArray(name);
3342    }
3343
3344    /**
3345     * Retrieve extended data from the intent.
3346     *
3347     * @param name The name of the desired item.
3348     *
3349     * @return the value of an item that previously added with putExtra()
3350     * or null if no double array value was found.
3351     *
3352     * @see #putExtra(String, double[])
3353     */
3354    public double[] getDoubleArrayExtra(String name) {
3355        return mExtras == null ? null : mExtras.getDoubleArray(name);
3356    }
3357
3358    /**
3359     * Retrieve extended data from the intent.
3360     *
3361     * @param name The name of the desired item.
3362     *
3363     * @return the value of an item that previously added with putExtra()
3364     * or null if no String array value was found.
3365     *
3366     * @see #putExtra(String, String[])
3367     */
3368    public String[] getStringArrayExtra(String name) {
3369        return mExtras == null ? null : mExtras.getStringArray(name);
3370    }
3371
3372    /**
3373     * Retrieve extended data from the intent.
3374     *
3375     * @param name The name of the desired item.
3376     *
3377     * @return the value of an item that previously added with putExtra()
3378     * or null if no Bundle value was found.
3379     *
3380     * @see #putExtra(String, Bundle)
3381     */
3382    public Bundle getBundleExtra(String name) {
3383        return mExtras == null ? null : mExtras.getBundle(name);
3384    }
3385
3386    /**
3387     * Retrieve extended data from the intent.
3388     *
3389     * @param name The name of the desired item.
3390     *
3391     * @return the value of an item that previously added with putExtra()
3392     * or null if no IBinder value was found.
3393     *
3394     * @see #putExtra(String, IBinder)
3395     *
3396     * @deprecated
3397     * @hide
3398     */
3399    @Deprecated
3400    public IBinder getIBinderExtra(String name) {
3401        return mExtras == null ? null : mExtras.getIBinder(name);
3402    }
3403
3404    /**
3405     * Retrieve extended data from the intent.
3406     *
3407     * @param name The name of the desired item.
3408     * @param defaultValue The default value to return in case no item is
3409     * associated with the key 'name'
3410     *
3411     * @return the value of an item that previously added with putExtra()
3412     * or defaultValue if none was found.
3413     *
3414     * @see #putExtra
3415     *
3416     * @deprecated
3417     * @hide
3418     */
3419    @Deprecated
3420    public Object getExtra(String name, Object defaultValue) {
3421        Object result = defaultValue;
3422        if (mExtras != null) {
3423            Object result2 = mExtras.get(name);
3424            if (result2 != null) {
3425                result = result2;
3426            }
3427        }
3428
3429        return result;
3430    }
3431
3432    /**
3433     * Retrieves a map of extended data from the intent.
3434     *
3435     * @return the map of all extras previously added with putExtra(),
3436     * or null if none have been added.
3437     */
3438    public Bundle getExtras() {
3439        return (mExtras != null)
3440                ? new Bundle(mExtras)
3441                : null;
3442    }
3443
3444    /**
3445     * Retrieve any special flags associated with this intent.  You will
3446     * normally just set them with {@link #setFlags} and let the system
3447     * take the appropriate action with them.
3448     *
3449     * @return int The currently set flags.
3450     *
3451     * @see #setFlags
3452     */
3453    public int getFlags() {
3454        return mFlags;
3455    }
3456
3457    /**
3458     * Retrieve the application package name this Intent is limited to.  When
3459     * resolving an Intent, if non-null this limits the resolution to only
3460     * components in the given application package.
3461     *
3462     * @return The name of the application package for the Intent.
3463     *
3464     * @see #resolveActivity
3465     * @see #setPackage
3466     */
3467    public String getPackage() {
3468        return mPackage;
3469    }
3470
3471    /**
3472     * Retrieve the concrete component associated with the intent.  When receiving
3473     * an intent, this is the component that was found to best handle it (that is,
3474     * yourself) and will always be non-null; in all other cases it will be
3475     * null unless explicitly set.
3476     *
3477     * @return The name of the application component to handle the intent.
3478     *
3479     * @see #resolveActivity
3480     * @see #setComponent
3481     */
3482    public ComponentName getComponent() {
3483        return mComponent;
3484    }
3485
3486    /**
3487     * Return the Activity component that should be used to handle this intent.
3488     * The appropriate component is determined based on the information in the
3489     * intent, evaluated as follows:
3490     *
3491     * <p>If {@link #getComponent} returns an explicit class, that is returned
3492     * without any further consideration.
3493     *
3494     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3495     * category to be considered.
3496     *
3497     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3498     * action.
3499     *
3500     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3501     * this type.
3502     *
3503     * <p>If {@link #addCategory} has added any categories, the activity must
3504     * handle ALL of the categories specified.
3505     *
3506     * <p>If {@link #getPackage} is non-NULL, only activity components in
3507     * that application package will be considered.
3508     *
3509     * <p>If there are no activities that satisfy all of these conditions, a
3510     * null string is returned.
3511     *
3512     * <p>If multiple activities are found to satisfy the intent, the one with
3513     * the highest priority will be used.  If there are multiple activities
3514     * with the same priority, the system will either pick the best activity
3515     * based on user preference, or resolve to a system class that will allow
3516     * the user to pick an activity and forward from there.
3517     *
3518     * <p>This method is implemented simply by calling
3519     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3520     * true.</p>
3521     * <p> This API is called for you as part of starting an activity from an
3522     * intent.  You do not normally need to call it yourself.</p>
3523     *
3524     * @param pm The package manager with which to resolve the Intent.
3525     *
3526     * @return Name of the component implementing an activity that can
3527     *         display the intent.
3528     *
3529     * @see #setComponent
3530     * @see #getComponent
3531     * @see #resolveActivityInfo
3532     */
3533    public ComponentName resolveActivity(PackageManager pm) {
3534        if (mComponent != null) {
3535            return mComponent;
3536        }
3537
3538        ResolveInfo info = pm.resolveActivity(
3539            this, PackageManager.MATCH_DEFAULT_ONLY);
3540        if (info != null) {
3541            return new ComponentName(
3542                    info.activityInfo.applicationInfo.packageName,
3543                    info.activityInfo.name);
3544        }
3545
3546        return null;
3547    }
3548
3549    /**
3550     * Resolve the Intent into an {@link ActivityInfo}
3551     * describing the activity that should execute the intent.  Resolution
3552     * follows the same rules as described for {@link #resolveActivity}, but
3553     * you get back the completely information about the resolved activity
3554     * instead of just its class name.
3555     *
3556     * @param pm The package manager with which to resolve the Intent.
3557     * @param flags Addition information to retrieve as per
3558     * {@link PackageManager#getActivityInfo(ComponentName, int)
3559     * PackageManager.getActivityInfo()}.
3560     *
3561     * @return PackageManager.ActivityInfo
3562     *
3563     * @see #resolveActivity
3564     */
3565    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3566        ActivityInfo ai = null;
3567        if (mComponent != null) {
3568            try {
3569                ai = pm.getActivityInfo(mComponent, flags);
3570            } catch (PackageManager.NameNotFoundException e) {
3571                // ignore
3572            }
3573        } else {
3574            ResolveInfo info = pm.resolveActivity(
3575                this, PackageManager.MATCH_DEFAULT_ONLY);
3576            if (info != null) {
3577                ai = info.activityInfo;
3578            }
3579        }
3580
3581        return ai;
3582    }
3583
3584    /**
3585     * Set the general action to be performed.
3586     *
3587     * @param action An action name, such as ACTION_VIEW.  Application-specific
3588     *               actions should be prefixed with the vendor's package name.
3589     *
3590     * @return Returns the same Intent object, for chaining multiple calls
3591     * into a single statement.
3592     *
3593     * @see #getAction
3594     */
3595    public Intent setAction(String action) {
3596        mAction = action;
3597        return this;
3598    }
3599
3600    /**
3601     * Set the data this intent is operating on.  This method automatically
3602     * clears any type that was previously set by {@link #setType}.
3603     *
3604     * <p><em>Note: scheme and host name matching in the Android framework is
3605     * case-sensitive, unlike the formal RFC.  As a result,
3606     * you should always ensure that you write your Uri with these elements
3607     * using lower case letters, and normalize any Uris you receive from
3608     * outside of Android to ensure the scheme and host is lower case.</em></p>
3609     *
3610     * @param data The URI of the data this intent is now targeting.
3611     *
3612     * @return Returns the same Intent object, for chaining multiple calls
3613     * into a single statement.
3614     *
3615     * @see #getData
3616     * @see #setType
3617     * @see #setDataAndType
3618     */
3619    public Intent setData(Uri data) {
3620        mData = data;
3621        mType = null;
3622        return this;
3623    }
3624
3625    /**
3626     * Set an explicit MIME data type.  This is used to create intents that
3627     * only specify a type and not data, for example to indicate the type of
3628     * data to return.  This method automatically clears any data that was
3629     * previously set by {@link #setData}.
3630     *
3631     * <p><em>Note: MIME type matching in the Android framework is
3632     * case-sensitive, unlike formal RFC MIME types.  As a result,
3633     * you should always write your MIME types with lower case letters,
3634     * and any MIME types you receive from outside of Android should be
3635     * converted to lower case before supplying them here.</em></p>
3636     *
3637     * @param type The MIME type of the data being handled by this intent.
3638     *
3639     * @return Returns the same Intent object, for chaining multiple calls
3640     * into a single statement.
3641     *
3642     * @see #getType
3643     * @see #setData
3644     * @see #setDataAndType
3645     */
3646    public Intent setType(String type) {
3647        mData = null;
3648        mType = type;
3649        return this;
3650    }
3651
3652    /**
3653     * (Usually optional) Set the data for the intent along with an explicit
3654     * MIME data type.  This method should very rarely be used -- it allows you
3655     * to override the MIME type that would ordinarily be inferred from the
3656     * data with your own type given here.
3657     *
3658     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
3659     * Android framework is case-sensitive, unlike the formal RFC definitions.
3660     * As a result, you should always write these elements with lower case letters,
3661     * and normalize any MIME types or Uris you receive from
3662     * outside of Android to ensure these elements are lower case before
3663     * supplying them here.</em></p>
3664     *
3665     * @param data The URI of the data this intent is now targeting.
3666     * @param type The MIME type of the data being handled by this intent.
3667     *
3668     * @return Returns the same Intent object, for chaining multiple calls
3669     * into a single statement.
3670     *
3671     * @see #setData
3672     * @see #setType
3673     */
3674    public Intent setDataAndType(Uri data, String type) {
3675        mData = data;
3676        mType = type;
3677        return this;
3678    }
3679
3680    /**
3681     * Add a new category to the intent.  Categories provide additional detail
3682     * about the action the intent is perform.  When resolving an intent, only
3683     * activities that provide <em>all</em> of the requested categories will be
3684     * used.
3685     *
3686     * @param category The desired category.  This can be either one of the
3687     *               predefined Intent categories, or a custom category in your own
3688     *               namespace.
3689     *
3690     * @return Returns the same Intent object, for chaining multiple calls
3691     * into a single statement.
3692     *
3693     * @see #hasCategory
3694     * @see #removeCategory
3695     */
3696    public Intent addCategory(String category) {
3697        if (mCategories == null) {
3698            mCategories = new HashSet<String>();
3699        }
3700        mCategories.add(category);
3701        return this;
3702    }
3703
3704    /**
3705     * Remove an category from an intent.
3706     *
3707     * @param category The category to remove.
3708     *
3709     * @see #addCategory
3710     */
3711    public void removeCategory(String category) {
3712        if (mCategories != null) {
3713            mCategories.remove(category);
3714            if (mCategories.size() == 0) {
3715                mCategories = null;
3716            }
3717        }
3718    }
3719
3720    /**
3721     * Add extended data to the intent.  The name must include a package
3722     * prefix, for example the app com.android.contacts would use names
3723     * like "com.android.contacts.ShowAll".
3724     *
3725     * @param name The name of the extra data, with package prefix.
3726     * @param value The boolean data value.
3727     *
3728     * @return Returns the same Intent object, for chaining multiple calls
3729     * into a single statement.
3730     *
3731     * @see #putExtras
3732     * @see #removeExtra
3733     * @see #getBooleanExtra(String, boolean)
3734     */
3735    public Intent putExtra(String name, boolean value) {
3736        if (mExtras == null) {
3737            mExtras = new Bundle();
3738        }
3739        mExtras.putBoolean(name, value);
3740        return this;
3741    }
3742
3743    /**
3744     * Add extended data to the intent.  The name must include a package
3745     * prefix, for example the app com.android.contacts would use names
3746     * like "com.android.contacts.ShowAll".
3747     *
3748     * @param name The name of the extra data, with package prefix.
3749     * @param value The byte data value.
3750     *
3751     * @return Returns the same Intent object, for chaining multiple calls
3752     * into a single statement.
3753     *
3754     * @see #putExtras
3755     * @see #removeExtra
3756     * @see #getByteExtra(String, byte)
3757     */
3758    public Intent putExtra(String name, byte value) {
3759        if (mExtras == null) {
3760            mExtras = new Bundle();
3761        }
3762        mExtras.putByte(name, value);
3763        return this;
3764    }
3765
3766    /**
3767     * Add extended data to the intent.  The name must include a package
3768     * prefix, for example the app com.android.contacts would use names
3769     * like "com.android.contacts.ShowAll".
3770     *
3771     * @param name The name of the extra data, with package prefix.
3772     * @param value The char data value.
3773     *
3774     * @return Returns the same Intent object, for chaining multiple calls
3775     * into a single statement.
3776     *
3777     * @see #putExtras
3778     * @see #removeExtra
3779     * @see #getCharExtra(String, char)
3780     */
3781    public Intent putExtra(String name, char value) {
3782        if (mExtras == null) {
3783            mExtras = new Bundle();
3784        }
3785        mExtras.putChar(name, value);
3786        return this;
3787    }
3788
3789    /**
3790     * Add extended data to the intent.  The name must include a package
3791     * prefix, for example the app com.android.contacts would use names
3792     * like "com.android.contacts.ShowAll".
3793     *
3794     * @param name The name of the extra data, with package prefix.
3795     * @param value The short data value.
3796     *
3797     * @return Returns the same Intent object, for chaining multiple calls
3798     * into a single statement.
3799     *
3800     * @see #putExtras
3801     * @see #removeExtra
3802     * @see #getShortExtra(String, short)
3803     */
3804    public Intent putExtra(String name, short value) {
3805        if (mExtras == null) {
3806            mExtras = new Bundle();
3807        }
3808        mExtras.putShort(name, value);
3809        return this;
3810    }
3811
3812    /**
3813     * Add extended data to the intent.  The name must include a package
3814     * prefix, for example the app com.android.contacts would use names
3815     * like "com.android.contacts.ShowAll".
3816     *
3817     * @param name The name of the extra data, with package prefix.
3818     * @param value The integer data value.
3819     *
3820     * @return Returns the same Intent object, for chaining multiple calls
3821     * into a single statement.
3822     *
3823     * @see #putExtras
3824     * @see #removeExtra
3825     * @see #getIntExtra(String, int)
3826     */
3827    public Intent putExtra(String name, int value) {
3828        if (mExtras == null) {
3829            mExtras = new Bundle();
3830        }
3831        mExtras.putInt(name, value);
3832        return this;
3833    }
3834
3835    /**
3836     * Add extended data to the intent.  The name must include a package
3837     * prefix, for example the app com.android.contacts would use names
3838     * like "com.android.contacts.ShowAll".
3839     *
3840     * @param name The name of the extra data, with package prefix.
3841     * @param value The long data value.
3842     *
3843     * @return Returns the same Intent object, for chaining multiple calls
3844     * into a single statement.
3845     *
3846     * @see #putExtras
3847     * @see #removeExtra
3848     * @see #getLongExtra(String, long)
3849     */
3850    public Intent putExtra(String name, long value) {
3851        if (mExtras == null) {
3852            mExtras = new Bundle();
3853        }
3854        mExtras.putLong(name, value);
3855        return this;
3856    }
3857
3858    /**
3859     * Add extended data to the intent.  The name must include a package
3860     * prefix, for example the app com.android.contacts would use names
3861     * like "com.android.contacts.ShowAll".
3862     *
3863     * @param name The name of the extra data, with package prefix.
3864     * @param value The float data value.
3865     *
3866     * @return Returns the same Intent object, for chaining multiple calls
3867     * into a single statement.
3868     *
3869     * @see #putExtras
3870     * @see #removeExtra
3871     * @see #getFloatExtra(String, float)
3872     */
3873    public Intent putExtra(String name, float value) {
3874        if (mExtras == null) {
3875            mExtras = new Bundle();
3876        }
3877        mExtras.putFloat(name, value);
3878        return this;
3879    }
3880
3881    /**
3882     * Add extended data to the intent.  The name must include a package
3883     * prefix, for example the app com.android.contacts would use names
3884     * like "com.android.contacts.ShowAll".
3885     *
3886     * @param name The name of the extra data, with package prefix.
3887     * @param value The double data value.
3888     *
3889     * @return Returns the same Intent object, for chaining multiple calls
3890     * into a single statement.
3891     *
3892     * @see #putExtras
3893     * @see #removeExtra
3894     * @see #getDoubleExtra(String, double)
3895     */
3896    public Intent putExtra(String name, double value) {
3897        if (mExtras == null) {
3898            mExtras = new Bundle();
3899        }
3900        mExtras.putDouble(name, value);
3901        return this;
3902    }
3903
3904    /**
3905     * Add extended data to the intent.  The name must include a package
3906     * prefix, for example the app com.android.contacts would use names
3907     * like "com.android.contacts.ShowAll".
3908     *
3909     * @param name The name of the extra data, with package prefix.
3910     * @param value The String data value.
3911     *
3912     * @return Returns the same Intent object, for chaining multiple calls
3913     * into a single statement.
3914     *
3915     * @see #putExtras
3916     * @see #removeExtra
3917     * @see #getStringExtra(String)
3918     */
3919    public Intent putExtra(String name, String value) {
3920        if (mExtras == null) {
3921            mExtras = new Bundle();
3922        }
3923        mExtras.putString(name, value);
3924        return this;
3925    }
3926
3927    /**
3928     * Add extended data to the intent.  The name must include a package
3929     * prefix, for example the app com.android.contacts would use names
3930     * like "com.android.contacts.ShowAll".
3931     *
3932     * @param name The name of the extra data, with package prefix.
3933     * @param value The CharSequence data value.
3934     *
3935     * @return Returns the same Intent object, for chaining multiple calls
3936     * into a single statement.
3937     *
3938     * @see #putExtras
3939     * @see #removeExtra
3940     * @see #getCharSequenceExtra(String)
3941     */
3942    public Intent putExtra(String name, CharSequence value) {
3943        if (mExtras == null) {
3944            mExtras = new Bundle();
3945        }
3946        mExtras.putCharSequence(name, value);
3947        return this;
3948    }
3949
3950    /**
3951     * Add extended data to the intent.  The name must include a package
3952     * prefix, for example the app com.android.contacts would use names
3953     * like "com.android.contacts.ShowAll".
3954     *
3955     * @param name The name of the extra data, with package prefix.
3956     * @param value The Parcelable data value.
3957     *
3958     * @return Returns the same Intent object, for chaining multiple calls
3959     * into a single statement.
3960     *
3961     * @see #putExtras
3962     * @see #removeExtra
3963     * @see #getParcelableExtra(String)
3964     */
3965    public Intent putExtra(String name, Parcelable value) {
3966        if (mExtras == null) {
3967            mExtras = new Bundle();
3968        }
3969        mExtras.putParcelable(name, value);
3970        return this;
3971    }
3972
3973    /**
3974     * Add extended data to the intent.  The name must include a package
3975     * prefix, for example the app com.android.contacts would use names
3976     * like "com.android.contacts.ShowAll".
3977     *
3978     * @param name The name of the extra data, with package prefix.
3979     * @param value The Parcelable[] data value.
3980     *
3981     * @return Returns the same Intent object, for chaining multiple calls
3982     * into a single statement.
3983     *
3984     * @see #putExtras
3985     * @see #removeExtra
3986     * @see #getParcelableArrayExtra(String)
3987     */
3988    public Intent putExtra(String name, Parcelable[] value) {
3989        if (mExtras == null) {
3990            mExtras = new Bundle();
3991        }
3992        mExtras.putParcelableArray(name, value);
3993        return this;
3994    }
3995
3996    /**
3997     * Add extended data to the intent.  The name must include a package
3998     * prefix, for example the app com.android.contacts would use names
3999     * like "com.android.contacts.ShowAll".
4000     *
4001     * @param name The name of the extra data, with package prefix.
4002     * @param value The ArrayList<Parcelable> data value.
4003     *
4004     * @return Returns the same Intent object, for chaining multiple calls
4005     * into a single statement.
4006     *
4007     * @see #putExtras
4008     * @see #removeExtra
4009     * @see #getParcelableArrayListExtra(String)
4010     */
4011    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
4012        if (mExtras == null) {
4013            mExtras = new Bundle();
4014        }
4015        mExtras.putParcelableArrayList(name, value);
4016        return this;
4017    }
4018
4019    /**
4020     * Add extended data to the intent.  The name must include a package
4021     * prefix, for example the app com.android.contacts would use names
4022     * like "com.android.contacts.ShowAll".
4023     *
4024     * @param name The name of the extra data, with package prefix.
4025     * @param value The ArrayList<Integer> data value.
4026     *
4027     * @return Returns the same Intent object, for chaining multiple calls
4028     * into a single statement.
4029     *
4030     * @see #putExtras
4031     * @see #removeExtra
4032     * @see #getIntegerArrayListExtra(String)
4033     */
4034    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
4035        if (mExtras == null) {
4036            mExtras = new Bundle();
4037        }
4038        mExtras.putIntegerArrayList(name, value);
4039        return this;
4040    }
4041
4042    /**
4043     * Add extended data to the intent.  The name must include a package
4044     * prefix, for example the app com.android.contacts would use names
4045     * like "com.android.contacts.ShowAll".
4046     *
4047     * @param name The name of the extra data, with package prefix.
4048     * @param value The ArrayList<String> data value.
4049     *
4050     * @return Returns the same Intent object, for chaining multiple calls
4051     * into a single statement.
4052     *
4053     * @see #putExtras
4054     * @see #removeExtra
4055     * @see #getStringArrayListExtra(String)
4056     */
4057    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
4058        if (mExtras == null) {
4059            mExtras = new Bundle();
4060        }
4061        mExtras.putStringArrayList(name, value);
4062        return this;
4063    }
4064
4065    /**
4066     * Add extended data to the intent.  The name must include a package
4067     * prefix, for example the app com.android.contacts would use names
4068     * like "com.android.contacts.ShowAll".
4069     *
4070     * @param name The name of the extra data, with package prefix.
4071     * @param value The Serializable data value.
4072     *
4073     * @return Returns the same Intent object, for chaining multiple calls
4074     * into a single statement.
4075     *
4076     * @see #putExtras
4077     * @see #removeExtra
4078     * @see #getSerializableExtra(String)
4079     */
4080    public Intent putExtra(String name, Serializable value) {
4081        if (mExtras == null) {
4082            mExtras = new Bundle();
4083        }
4084        mExtras.putSerializable(name, value);
4085        return this;
4086    }
4087
4088    /**
4089     * Add extended data to the intent.  The name must include a package
4090     * prefix, for example the app com.android.contacts would use names
4091     * like "com.android.contacts.ShowAll".
4092     *
4093     * @param name The name of the extra data, with package prefix.
4094     * @param value The boolean array data value.
4095     *
4096     * @return Returns the same Intent object, for chaining multiple calls
4097     * into a single statement.
4098     *
4099     * @see #putExtras
4100     * @see #removeExtra
4101     * @see #getBooleanArrayExtra(String)
4102     */
4103    public Intent putExtra(String name, boolean[] value) {
4104        if (mExtras == null) {
4105            mExtras = new Bundle();
4106        }
4107        mExtras.putBooleanArray(name, value);
4108        return this;
4109    }
4110
4111    /**
4112     * Add extended data to the intent.  The name must include a package
4113     * prefix, for example the app com.android.contacts would use names
4114     * like "com.android.contacts.ShowAll".
4115     *
4116     * @param name The name of the extra data, with package prefix.
4117     * @param value The byte array data value.
4118     *
4119     * @return Returns the same Intent object, for chaining multiple calls
4120     * into a single statement.
4121     *
4122     * @see #putExtras
4123     * @see #removeExtra
4124     * @see #getByteArrayExtra(String)
4125     */
4126    public Intent putExtra(String name, byte[] value) {
4127        if (mExtras == null) {
4128            mExtras = new Bundle();
4129        }
4130        mExtras.putByteArray(name, value);
4131        return this;
4132    }
4133
4134    /**
4135     * Add extended data to the intent.  The name must include a package
4136     * prefix, for example the app com.android.contacts would use names
4137     * like "com.android.contacts.ShowAll".
4138     *
4139     * @param name The name of the extra data, with package prefix.
4140     * @param value The short array data value.
4141     *
4142     * @return Returns the same Intent object, for chaining multiple calls
4143     * into a single statement.
4144     *
4145     * @see #putExtras
4146     * @see #removeExtra
4147     * @see #getShortArrayExtra(String)
4148     */
4149    public Intent putExtra(String name, short[] value) {
4150        if (mExtras == null) {
4151            mExtras = new Bundle();
4152        }
4153        mExtras.putShortArray(name, value);
4154        return this;
4155    }
4156
4157    /**
4158     * Add extended data to the intent.  The name must include a package
4159     * prefix, for example the app com.android.contacts would use names
4160     * like "com.android.contacts.ShowAll".
4161     *
4162     * @param name The name of the extra data, with package prefix.
4163     * @param value The char array data value.
4164     *
4165     * @return Returns the same Intent object, for chaining multiple calls
4166     * into a single statement.
4167     *
4168     * @see #putExtras
4169     * @see #removeExtra
4170     * @see #getCharArrayExtra(String)
4171     */
4172    public Intent putExtra(String name, char[] value) {
4173        if (mExtras == null) {
4174            mExtras = new Bundle();
4175        }
4176        mExtras.putCharArray(name, value);
4177        return this;
4178    }
4179
4180    /**
4181     * Add extended data to the intent.  The name must include a package
4182     * prefix, for example the app com.android.contacts would use names
4183     * like "com.android.contacts.ShowAll".
4184     *
4185     * @param name The name of the extra data, with package prefix.
4186     * @param value The int array data value.
4187     *
4188     * @return Returns the same Intent object, for chaining multiple calls
4189     * into a single statement.
4190     *
4191     * @see #putExtras
4192     * @see #removeExtra
4193     * @see #getIntArrayExtra(String)
4194     */
4195    public Intent putExtra(String name, int[] value) {
4196        if (mExtras == null) {
4197            mExtras = new Bundle();
4198        }
4199        mExtras.putIntArray(name, value);
4200        return this;
4201    }
4202
4203    /**
4204     * Add extended data to the intent.  The name must include a package
4205     * prefix, for example the app com.android.contacts would use names
4206     * like "com.android.contacts.ShowAll".
4207     *
4208     * @param name The name of the extra data, with package prefix.
4209     * @param value The byte array data value.
4210     *
4211     * @return Returns the same Intent object, for chaining multiple calls
4212     * into a single statement.
4213     *
4214     * @see #putExtras
4215     * @see #removeExtra
4216     * @see #getLongArrayExtra(String)
4217     */
4218    public Intent putExtra(String name, long[] value) {
4219        if (mExtras == null) {
4220            mExtras = new Bundle();
4221        }
4222        mExtras.putLongArray(name, value);
4223        return this;
4224    }
4225
4226    /**
4227     * Add extended data to the intent.  The name must include a package
4228     * prefix, for example the app com.android.contacts would use names
4229     * like "com.android.contacts.ShowAll".
4230     *
4231     * @param name The name of the extra data, with package prefix.
4232     * @param value The float array data value.
4233     *
4234     * @return Returns the same Intent object, for chaining multiple calls
4235     * into a single statement.
4236     *
4237     * @see #putExtras
4238     * @see #removeExtra
4239     * @see #getFloatArrayExtra(String)
4240     */
4241    public Intent putExtra(String name, float[] value) {
4242        if (mExtras == null) {
4243            mExtras = new Bundle();
4244        }
4245        mExtras.putFloatArray(name, value);
4246        return this;
4247    }
4248
4249    /**
4250     * Add extended data to the intent.  The name must include a package
4251     * prefix, for example the app com.android.contacts would use names
4252     * like "com.android.contacts.ShowAll".
4253     *
4254     * @param name The name of the extra data, with package prefix.
4255     * @param value The double array data value.
4256     *
4257     * @return Returns the same Intent object, for chaining multiple calls
4258     * into a single statement.
4259     *
4260     * @see #putExtras
4261     * @see #removeExtra
4262     * @see #getDoubleArrayExtra(String)
4263     */
4264    public Intent putExtra(String name, double[] value) {
4265        if (mExtras == null) {
4266            mExtras = new Bundle();
4267        }
4268        mExtras.putDoubleArray(name, value);
4269        return this;
4270    }
4271
4272    /**
4273     * Add extended data to the intent.  The name must include a package
4274     * prefix, for example the app com.android.contacts would use names
4275     * like "com.android.contacts.ShowAll".
4276     *
4277     * @param name The name of the extra data, with package prefix.
4278     * @param value The String array data value.
4279     *
4280     * @return Returns the same Intent object, for chaining multiple calls
4281     * into a single statement.
4282     *
4283     * @see #putExtras
4284     * @see #removeExtra
4285     * @see #getStringArrayExtra(String)
4286     */
4287    public Intent putExtra(String name, String[] value) {
4288        if (mExtras == null) {
4289            mExtras = new Bundle();
4290        }
4291        mExtras.putStringArray(name, value);
4292        return this;
4293    }
4294
4295    /**
4296     * Add extended data to the intent.  The name must include a package
4297     * prefix, for example the app com.android.contacts would use names
4298     * like "com.android.contacts.ShowAll".
4299     *
4300     * @param name The name of the extra data, with package prefix.
4301     * @param value The Bundle data value.
4302     *
4303     * @return Returns the same Intent object, for chaining multiple calls
4304     * into a single statement.
4305     *
4306     * @see #putExtras
4307     * @see #removeExtra
4308     * @see #getBundleExtra(String)
4309     */
4310    public Intent putExtra(String name, Bundle value) {
4311        if (mExtras == null) {
4312            mExtras = new Bundle();
4313        }
4314        mExtras.putBundle(name, value);
4315        return this;
4316    }
4317
4318    /**
4319     * Add extended data to the intent.  The name must include a package
4320     * prefix, for example the app com.android.contacts would use names
4321     * like "com.android.contacts.ShowAll".
4322     *
4323     * @param name The name of the extra data, with package prefix.
4324     * @param value The IBinder data value.
4325     *
4326     * @return Returns the same Intent object, for chaining multiple calls
4327     * into a single statement.
4328     *
4329     * @see #putExtras
4330     * @see #removeExtra
4331     * @see #getIBinderExtra(String)
4332     *
4333     * @deprecated
4334     * @hide
4335     */
4336    @Deprecated
4337    public Intent putExtra(String name, IBinder value) {
4338        if (mExtras == null) {
4339            mExtras = new Bundle();
4340        }
4341        mExtras.putIBinder(name, value);
4342        return this;
4343    }
4344
4345    /**
4346     * Copy all extras in 'src' in to this intent.
4347     *
4348     * @param src Contains the extras to copy.
4349     *
4350     * @see #putExtra
4351     */
4352    public Intent putExtras(Intent src) {
4353        if (src.mExtras != null) {
4354            if (mExtras == null) {
4355                mExtras = new Bundle(src.mExtras);
4356            } else {
4357                mExtras.putAll(src.mExtras);
4358            }
4359        }
4360        return this;
4361    }
4362
4363    /**
4364     * Add a set of extended data to the intent.  The keys must include a package
4365     * prefix, for example the app com.android.contacts would use names
4366     * like "com.android.contacts.ShowAll".
4367     *
4368     * @param extras The Bundle of extras to add to this intent.
4369     *
4370     * @see #putExtra
4371     * @see #removeExtra
4372     */
4373    public Intent putExtras(Bundle extras) {
4374        if (mExtras == null) {
4375            mExtras = new Bundle();
4376        }
4377        mExtras.putAll(extras);
4378        return this;
4379    }
4380
4381    /**
4382     * Completely replace the extras in the Intent with the extras in the
4383     * given Intent.
4384     *
4385     * @param src The exact extras contained in this Intent are copied
4386     * into the target intent, replacing any that were previously there.
4387     */
4388    public Intent replaceExtras(Intent src) {
4389        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4390        return this;
4391    }
4392
4393    /**
4394     * Completely replace the extras in the Intent with the given Bundle of
4395     * extras.
4396     *
4397     * @param extras The new set of extras in the Intent, or null to erase
4398     * all extras.
4399     */
4400    public Intent replaceExtras(Bundle extras) {
4401        mExtras = extras != null ? new Bundle(extras) : null;
4402        return this;
4403    }
4404
4405    /**
4406     * Remove extended data from the intent.
4407     *
4408     * @see #putExtra
4409     */
4410    public void removeExtra(String name) {
4411        if (mExtras != null) {
4412            mExtras.remove(name);
4413            if (mExtras.size() == 0) {
4414                mExtras = null;
4415            }
4416        }
4417    }
4418
4419    /**
4420     * Set special flags controlling how this intent is handled.  Most values
4421     * here depend on the type of component being executed by the Intent,
4422     * specifically the FLAG_ACTIVITY_* flags are all for use with
4423     * {@link Context#startActivity Context.startActivity()} and the
4424     * FLAG_RECEIVER_* flags are all for use with
4425     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4426     *
4427     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4428     * Activities and Tasks</a> documentation for important information on how some of these options impact
4429     * the behavior of your application.
4430     *
4431     * @param flags The desired flags.
4432     *
4433     * @return Returns the same Intent object, for chaining multiple calls
4434     * into a single statement.
4435     *
4436     * @see #getFlags
4437     * @see #addFlags
4438     *
4439     * @see #FLAG_GRANT_READ_URI_PERMISSION
4440     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4441     * @see #FLAG_DEBUG_LOG_RESOLUTION
4442     * @see #FLAG_FROM_BACKGROUND
4443     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4444     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4445     * @see #FLAG_ACTIVITY_CLEAR_TOP
4446     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4447     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4448     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4449     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4450     * @see #FLAG_ACTIVITY_NEW_TASK
4451     * @see #FLAG_ACTIVITY_NO_HISTORY
4452     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4453     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4454     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4455     * @see #FLAG_ACTIVITY_SINGLE_TOP
4456     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4457     */
4458    public Intent setFlags(int flags) {
4459        mFlags = flags;
4460        return this;
4461    }
4462
4463    /**
4464     * Add additional flags to the intent (or with existing flags
4465     * value).
4466     *
4467     * @param flags The new flags to set.
4468     *
4469     * @return Returns the same Intent object, for chaining multiple calls
4470     * into a single statement.
4471     *
4472     * @see #setFlags
4473     */
4474    public Intent addFlags(int flags) {
4475        mFlags |= flags;
4476        return this;
4477    }
4478
4479    /**
4480     * (Usually optional) Set an explicit application package name that limits
4481     * the components this Intent will resolve to.  If left to the default
4482     * value of null, all components in all applications will considered.
4483     * If non-null, the Intent can only match the components in the given
4484     * application package.
4485     *
4486     * @param packageName The name of the application package to handle the
4487     * intent, or null to allow any application package.
4488     *
4489     * @return Returns the same Intent object, for chaining multiple calls
4490     * into a single statement.
4491     *
4492     * @see #getPackage
4493     * @see #resolveActivity
4494     */
4495    public Intent setPackage(String packageName) {
4496        mPackage = packageName;
4497        return this;
4498    }
4499
4500    /**
4501     * (Usually optional) Explicitly set the component to handle the intent.
4502     * If left with the default value of null, the system will determine the
4503     * appropriate class to use based on the other fields (action, data,
4504     * type, categories) in the Intent.  If this class is defined, the
4505     * specified class will always be used regardless of the other fields.  You
4506     * should only set this value when you know you absolutely want a specific
4507     * class to be used; otherwise it is better to let the system find the
4508     * appropriate class so that you will respect the installed applications
4509     * and user preferences.
4510     *
4511     * @param component The name of the application component to handle the
4512     * intent, or null to let the system find one for you.
4513     *
4514     * @return Returns the same Intent object, for chaining multiple calls
4515     * into a single statement.
4516     *
4517     * @see #setClass
4518     * @see #setClassName(Context, String)
4519     * @see #setClassName(String, String)
4520     * @see #getComponent
4521     * @see #resolveActivity
4522     */
4523    public Intent setComponent(ComponentName component) {
4524        mComponent = component;
4525        return this;
4526    }
4527
4528    /**
4529     * Convenience for calling {@link #setComponent} with an
4530     * explicit class name.
4531     *
4532     * @param packageContext A Context of the application package implementing
4533     * this class.
4534     * @param className The name of a class inside of the application package
4535     * that will be used as the component for this Intent.
4536     *
4537     * @return Returns the same Intent object, for chaining multiple calls
4538     * into a single statement.
4539     *
4540     * @see #setComponent
4541     * @see #setClass
4542     */
4543    public Intent setClassName(Context packageContext, String className) {
4544        mComponent = new ComponentName(packageContext, className);
4545        return this;
4546    }
4547
4548    /**
4549     * Convenience for calling {@link #setComponent} with an
4550     * explicit application package name and class name.
4551     *
4552     * @param packageName The name of the package implementing the desired
4553     * component.
4554     * @param className The name of a class inside of the application package
4555     * that will be used as the component for this Intent.
4556     *
4557     * @return Returns the same Intent object, for chaining multiple calls
4558     * into a single statement.
4559     *
4560     * @see #setComponent
4561     * @see #setClass
4562     */
4563    public Intent setClassName(String packageName, String className) {
4564        mComponent = new ComponentName(packageName, className);
4565        return this;
4566    }
4567
4568    /**
4569     * Convenience for calling {@link #setComponent(ComponentName)} with the
4570     * name returned by a {@link Class} object.
4571     *
4572     * @param packageContext A Context of the application package implementing
4573     * this class.
4574     * @param cls The class name to set, equivalent to
4575     *            <code>setClassName(context, cls.getName())</code>.
4576     *
4577     * @return Returns the same Intent object, for chaining multiple calls
4578     * into a single statement.
4579     *
4580     * @see #setComponent
4581     */
4582    public Intent setClass(Context packageContext, Class<?> cls) {
4583        mComponent = new ComponentName(packageContext, cls);
4584        return this;
4585    }
4586
4587    /**
4588     * Use with {@link #fillIn} to allow the current action value to be
4589     * overwritten, even if it is already set.
4590     */
4591    public static final int FILL_IN_ACTION = 1<<0;
4592
4593    /**
4594     * Use with {@link #fillIn} to allow the current data or type value
4595     * overwritten, even if it is already set.
4596     */
4597    public static final int FILL_IN_DATA = 1<<1;
4598
4599    /**
4600     * Use with {@link #fillIn} to allow the current categories to be
4601     * overwritten, even if they are already set.
4602     */
4603    public static final int FILL_IN_CATEGORIES = 1<<2;
4604
4605    /**
4606     * Use with {@link #fillIn} to allow the current component value to be
4607     * overwritten, even if it is already set.
4608     */
4609    public static final int FILL_IN_COMPONENT = 1<<3;
4610
4611    /**
4612     * Use with {@link #fillIn} to allow the current package value to be
4613     * overwritten, even if it is already set.
4614     */
4615    public static final int FILL_IN_PACKAGE = 1<<4;
4616
4617    /**
4618     * Copy the contents of <var>other</var> in to this object, but only
4619     * where fields are not defined by this object.  For purposes of a field
4620     * being defined, the following pieces of data in the Intent are
4621     * considered to be separate fields:
4622     *
4623     * <ul>
4624     * <li> action, as set by {@link #setAction}.
4625     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4626     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4627     * <li> categories, as set by {@link #addCategory}.
4628     * <li> package, as set by {@link #setPackage}.
4629     * <li> component, as set by {@link #setComponent(ComponentName)} or
4630     * related methods.
4631     * <li> each top-level name in the associated extras.
4632     * </ul>
4633     *
4634     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4635     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4636     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
4637     * corresponding field will not be replaced if it is already set.
4638     *
4639     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
4640     * specified.
4641     *
4642     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4643     * and Intent B with {action="gotit", data-type="some/thing",
4644     * categories="one","two"}.
4645     *
4646     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4647     * containing: {action="gotit", data-type="some/thing",
4648     * categories="bar"}.
4649     *
4650     * @param other Another Intent whose values are to be used to fill in
4651     * the current one.
4652     * @param flags Options to control which fields can be filled in.
4653     *
4654     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4655     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4656     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4657     */
4658    public int fillIn(Intent other, int flags) {
4659        int changes = 0;
4660        if (other.mAction != null
4661                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
4662            mAction = other.mAction;
4663            changes |= FILL_IN_ACTION;
4664        }
4665        if ((other.mData != null || other.mType != null)
4666                && ((mData == null && mType == null)
4667                        || (flags&FILL_IN_DATA) != 0)) {
4668            mData = other.mData;
4669            mType = other.mType;
4670            changes |= FILL_IN_DATA;
4671        }
4672        if (other.mCategories != null
4673                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
4674            if (other.mCategories != null) {
4675                mCategories = new HashSet<String>(other.mCategories);
4676            }
4677            changes |= FILL_IN_CATEGORIES;
4678        }
4679        if (other.mPackage != null
4680                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
4681            mPackage = other.mPackage;
4682            changes |= FILL_IN_PACKAGE;
4683        }
4684        // Component is special: it can -only- be set if explicitly allowed,
4685        // since otherwise the sender could force the intent somewhere the
4686        // originator didn't intend.
4687        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
4688            mComponent = other.mComponent;
4689            changes |= FILL_IN_COMPONENT;
4690        }
4691        mFlags |= other.mFlags;
4692        if (mExtras == null) {
4693            if (other.mExtras != null) {
4694                mExtras = new Bundle(other.mExtras);
4695            }
4696        } else if (other.mExtras != null) {
4697            try {
4698                Bundle newb = new Bundle(other.mExtras);
4699                newb.putAll(mExtras);
4700                mExtras = newb;
4701            } catch (RuntimeException e) {
4702                // Modifying the extras can cause us to unparcel the contents
4703                // of the bundle, and if we do this in the system process that
4704                // may fail.  We really should handle this (i.e., the Bundle
4705                // impl shouldn't be on top of a plain map), but for now just
4706                // ignore it and keep the original contents. :(
4707                Log.w("Intent", "Failure filling in extras", e);
4708            }
4709        }
4710        return changes;
4711    }
4712
4713    /**
4714     * Wrapper class holding an Intent and implementing comparisons on it for
4715     * the purpose of filtering.  The class implements its
4716     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4717     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4718     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4719     * on the wrapped Intent.
4720     */
4721    public static final class FilterComparison {
4722        private final Intent mIntent;
4723        private final int mHashCode;
4724
4725        public FilterComparison(Intent intent) {
4726            mIntent = intent;
4727            mHashCode = intent.filterHashCode();
4728        }
4729
4730        /**
4731         * Return the Intent that this FilterComparison represents.
4732         * @return Returns the Intent held by the FilterComparison.  Do
4733         * not modify!
4734         */
4735        public Intent getIntent() {
4736            return mIntent;
4737        }
4738
4739        @Override
4740        public boolean equals(Object obj) {
4741            if (obj instanceof FilterComparison) {
4742                Intent other = ((FilterComparison)obj).mIntent;
4743                return mIntent.filterEquals(other);
4744            }
4745            return false;
4746        }
4747
4748        @Override
4749        public int hashCode() {
4750            return mHashCode;
4751        }
4752    }
4753
4754    /**
4755     * Determine if two intents are the same for the purposes of intent
4756     * resolution (filtering). That is, if their action, data, type,
4757     * class, and categories are the same.  This does <em>not</em> compare
4758     * any extra data included in the intents.
4759     *
4760     * @param other The other Intent to compare against.
4761     *
4762     * @return Returns true if action, data, type, class, and categories
4763     *         are the same.
4764     */
4765    public boolean filterEquals(Intent other) {
4766        if (other == null) {
4767            return false;
4768        }
4769        if (mAction != other.mAction) {
4770            if (mAction != null) {
4771                if (!mAction.equals(other.mAction)) {
4772                    return false;
4773                }
4774            } else {
4775                if (!other.mAction.equals(mAction)) {
4776                    return false;
4777                }
4778            }
4779        }
4780        if (mData != other.mData) {
4781            if (mData != null) {
4782                if (!mData.equals(other.mData)) {
4783                    return false;
4784                }
4785            } else {
4786                if (!other.mData.equals(mData)) {
4787                    return false;
4788                }
4789            }
4790        }
4791        if (mType != other.mType) {
4792            if (mType != null) {
4793                if (!mType.equals(other.mType)) {
4794                    return false;
4795                }
4796            } else {
4797                if (!other.mType.equals(mType)) {
4798                    return false;
4799                }
4800            }
4801        }
4802        if (mPackage != other.mPackage) {
4803            if (mPackage != null) {
4804                if (!mPackage.equals(other.mPackage)) {
4805                    return false;
4806                }
4807            } else {
4808                if (!other.mPackage.equals(mPackage)) {
4809                    return false;
4810                }
4811            }
4812        }
4813        if (mComponent != other.mComponent) {
4814            if (mComponent != null) {
4815                if (!mComponent.equals(other.mComponent)) {
4816                    return false;
4817                }
4818            } else {
4819                if (!other.mComponent.equals(mComponent)) {
4820                    return false;
4821                }
4822            }
4823        }
4824        if (mCategories != other.mCategories) {
4825            if (mCategories != null) {
4826                if (!mCategories.equals(other.mCategories)) {
4827                    return false;
4828                }
4829            } else {
4830                if (!other.mCategories.equals(mCategories)) {
4831                    return false;
4832                }
4833            }
4834        }
4835
4836        return true;
4837    }
4838
4839    /**
4840     * Generate hash code that matches semantics of filterEquals().
4841     *
4842     * @return Returns the hash value of the action, data, type, class, and
4843     *         categories.
4844     *
4845     * @see #filterEquals
4846     */
4847    public int filterHashCode() {
4848        int code = 0;
4849        if (mAction != null) {
4850            code += mAction.hashCode();
4851        }
4852        if (mData != null) {
4853            code += mData.hashCode();
4854        }
4855        if (mType != null) {
4856            code += mType.hashCode();
4857        }
4858        if (mPackage != null) {
4859            code += mPackage.hashCode();
4860        }
4861        if (mComponent != null) {
4862            code += mComponent.hashCode();
4863        }
4864        if (mCategories != null) {
4865            code += mCategories.hashCode();
4866        }
4867        return code;
4868    }
4869
4870    @Override
4871    public String toString() {
4872        StringBuilder   b = new StringBuilder(128);
4873
4874        b.append("Intent { ");
4875        toShortString(b, true, true);
4876        b.append(" }");
4877
4878        return b.toString();
4879    }
4880
4881    /** @hide */
4882    public String toShortString(boolean comp, boolean extras) {
4883        StringBuilder   b = new StringBuilder(128);
4884        toShortString(b, comp, extras);
4885        return b.toString();
4886    }
4887
4888    /** @hide */
4889    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
4890        boolean first = true;
4891        if (mAction != null) {
4892            b.append("act=").append(mAction);
4893            first = false;
4894        }
4895        if (mCategories != null) {
4896            if (!first) {
4897                b.append(' ');
4898            }
4899            first = false;
4900            b.append("cat=[");
4901            Iterator<String> i = mCategories.iterator();
4902            boolean didone = false;
4903            while (i.hasNext()) {
4904                if (didone) b.append(",");
4905                didone = true;
4906                b.append(i.next());
4907            }
4908            b.append("]");
4909        }
4910        if (mData != null) {
4911            if (!first) {
4912                b.append(' ');
4913            }
4914            first = false;
4915            b.append("dat=").append(mData);
4916        }
4917        if (mType != null) {
4918            if (!first) {
4919                b.append(' ');
4920            }
4921            first = false;
4922            b.append("typ=").append(mType);
4923        }
4924        if (mFlags != 0) {
4925            if (!first) {
4926                b.append(' ');
4927            }
4928            first = false;
4929            b.append("flg=0x").append(Integer.toHexString(mFlags));
4930        }
4931        if (mPackage != null) {
4932            if (!first) {
4933                b.append(' ');
4934            }
4935            first = false;
4936            b.append("pkg=").append(mPackage);
4937        }
4938        if (comp && mComponent != null) {
4939            if (!first) {
4940                b.append(' ');
4941            }
4942            first = false;
4943            b.append("cmp=").append(mComponent.flattenToShortString());
4944        }
4945        if (extras && mExtras != null) {
4946            if (!first) {
4947                b.append(' ');
4948            }
4949            first = false;
4950            b.append("(has extras)");
4951        }
4952    }
4953
4954    /**
4955     * Call {@link #toUri} with 0 flags.
4956     * @deprecated Use {@link #toUri} instead.
4957     */
4958    @Deprecated
4959    public String toURI() {
4960        return toUri(0);
4961    }
4962
4963    /**
4964     * Convert this Intent into a String holding a URI representation of it.
4965     * The returned URI string has been properly URI encoded, so it can be
4966     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
4967     * Intent's data as the base URI, with an additional fragment describing
4968     * the action, categories, type, flags, package, component, and extras.
4969     *
4970     * <p>You can convert the returned string back to an Intent with
4971     * {@link #getIntent}.
4972     *
4973     * @param flags Additional operating flags.  Either 0 or
4974     * {@link #URI_INTENT_SCHEME}.
4975     *
4976     * @return Returns a URI encoding URI string describing the entire contents
4977     * of the Intent.
4978     */
4979    public String toUri(int flags) {
4980        StringBuilder uri = new StringBuilder(128);
4981        String scheme = null;
4982        if (mData != null) {
4983            String data = mData.toString();
4984            if ((flags&URI_INTENT_SCHEME) != 0) {
4985                final int N = data.length();
4986                for (int i=0; i<N; i++) {
4987                    char c = data.charAt(i);
4988                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
4989                            || c == '.' || c == '-') {
4990                        continue;
4991                    }
4992                    if (c == ':' && i > 0) {
4993                        // Valid scheme.
4994                        scheme = data.substring(0, i);
4995                        uri.append("intent:");
4996                        data = data.substring(i+1);
4997                        break;
4998                    }
4999
5000                    // No scheme.
5001                    break;
5002                }
5003            }
5004            uri.append(data);
5005
5006        } else if ((flags&URI_INTENT_SCHEME) != 0) {
5007            uri.append("intent:");
5008        }
5009
5010        uri.append("#Intent;");
5011
5012        if (scheme != null) {
5013            uri.append("scheme=").append(scheme).append(';');
5014        }
5015        if (mAction != null) {
5016            uri.append("action=").append(Uri.encode(mAction)).append(';');
5017        }
5018        if (mCategories != null) {
5019            for (String category : mCategories) {
5020                uri.append("category=").append(Uri.encode(category)).append(';');
5021            }
5022        }
5023        if (mType != null) {
5024            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
5025        }
5026        if (mFlags != 0) {
5027            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
5028        }
5029        if (mPackage != null) {
5030            uri.append("package=").append(Uri.encode(mPackage)).append(';');
5031        }
5032        if (mComponent != null) {
5033            uri.append("component=").append(Uri.encode(
5034                    mComponent.flattenToShortString(), "/")).append(';');
5035        }
5036        if (mExtras != null) {
5037            for (String key : mExtras.keySet()) {
5038                final Object value = mExtras.get(key);
5039                char entryType =
5040                        value instanceof String    ? 'S' :
5041                        value instanceof Boolean   ? 'B' :
5042                        value instanceof Byte      ? 'b' :
5043                        value instanceof Character ? 'c' :
5044                        value instanceof Double    ? 'd' :
5045                        value instanceof Float     ? 'f' :
5046                        value instanceof Integer   ? 'i' :
5047                        value instanceof Long      ? 'l' :
5048                        value instanceof Short     ? 's' :
5049                        '\0';
5050
5051                if (entryType != '\0') {
5052                    uri.append(entryType);
5053                    uri.append('.');
5054                    uri.append(Uri.encode(key));
5055                    uri.append('=');
5056                    uri.append(Uri.encode(value.toString()));
5057                    uri.append(';');
5058                }
5059            }
5060        }
5061
5062        uri.append("end");
5063
5064        return uri.toString();
5065    }
5066
5067    public int describeContents() {
5068        return (mExtras != null) ? mExtras.describeContents() : 0;
5069    }
5070
5071    public void writeToParcel(Parcel out, int flags) {
5072        out.writeString(mAction);
5073        Uri.writeToParcel(out, mData);
5074        out.writeString(mType);
5075        out.writeInt(mFlags);
5076        out.writeString(mPackage);
5077        ComponentName.writeToParcel(mComponent, out);
5078
5079        if (mCategories != null) {
5080            out.writeInt(mCategories.size());
5081            for (String category : mCategories) {
5082                out.writeString(category);
5083            }
5084        } else {
5085            out.writeInt(0);
5086        }
5087
5088        out.writeBundle(mExtras);
5089    }
5090
5091    public static final Parcelable.Creator<Intent> CREATOR
5092            = new Parcelable.Creator<Intent>() {
5093        public Intent createFromParcel(Parcel in) {
5094            return new Intent(in);
5095        }
5096        public Intent[] newArray(int size) {
5097            return new Intent[size];
5098        }
5099    };
5100
5101    /** @hide */
5102    protected Intent(Parcel in) {
5103        readFromParcel(in);
5104    }
5105
5106    public void readFromParcel(Parcel in) {
5107        mAction = in.readString();
5108        mData = Uri.CREATOR.createFromParcel(in);
5109        mType = in.readString();
5110        mFlags = in.readInt();
5111        mPackage = in.readString();
5112        mComponent = ComponentName.readFromParcel(in);
5113
5114        int N = in.readInt();
5115        if (N > 0) {
5116            mCategories = new HashSet<String>();
5117            int i;
5118            for (i=0; i<N; i++) {
5119                mCategories.add(in.readString());
5120            }
5121        } else {
5122            mCategories = null;
5123        }
5124
5125        mExtras = in.readBundle();
5126    }
5127
5128    /**
5129     * Parses the "intent" element (and its children) from XML and instantiates
5130     * an Intent object.  The given XML parser should be located at the tag
5131     * where parsing should start (often named "intent"), from which the
5132     * basic action, data, type, and package and class name will be
5133     * retrieved.  The function will then parse in to any child elements,
5134     * looking for <category android:name="xxx"> tags to add categories and
5135     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5136     * to the intent.
5137     *
5138     * @param resources The Resources to use when inflating resources.
5139     * @param parser The XML parser pointing at an "intent" tag.
5140     * @param attrs The AttributeSet interface for retrieving extended
5141     * attribute data at the current <var>parser</var> location.
5142     * @return An Intent object matching the XML data.
5143     * @throws XmlPullParserException If there was an XML parsing error.
5144     * @throws IOException If there was an I/O error.
5145     */
5146    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5147            throws XmlPullParserException, IOException {
5148        Intent intent = new Intent();
5149
5150        TypedArray sa = resources.obtainAttributes(attrs,
5151                com.android.internal.R.styleable.Intent);
5152
5153        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5154
5155        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5156        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5157        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5158
5159        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5160        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5161        if (packageName != null && className != null) {
5162            intent.setComponent(new ComponentName(packageName, className));
5163        }
5164
5165        sa.recycle();
5166
5167        int outerDepth = parser.getDepth();
5168        int type;
5169        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5170               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5171            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5172                continue;
5173            }
5174
5175            String nodeName = parser.getName();
5176            if (nodeName.equals("category")) {
5177                sa = resources.obtainAttributes(attrs,
5178                        com.android.internal.R.styleable.IntentCategory);
5179                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5180                sa.recycle();
5181
5182                if (cat != null) {
5183                    intent.addCategory(cat);
5184                }
5185                XmlUtils.skipCurrentTag(parser);
5186
5187            } else if (nodeName.equals("extra")) {
5188                if (intent.mExtras == null) {
5189                    intent.mExtras = new Bundle();
5190                }
5191                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5192                XmlUtils.skipCurrentTag(parser);
5193
5194            } else {
5195                XmlUtils.skipCurrentTag(parser);
5196            }
5197        }
5198
5199        return intent;
5200    }
5201}
5202