Intent.java revision 6cca1599f78549716ef120245e54fa1961976dda
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:  This is a <em>sticky broadcast</em> containing the
1356     * charging state, level, and other information about the battery.
1357     * See {@link android.os.BatteryManager} for documentation on the
1358     * contents of the Intent.
1359     *
1360     * <p class="note">
1361     * You can <em>not</em> receive this through components declared
1362     * in manifests, only by explicitly registering for it with
1363     * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
1364     * Context.registerReceiver()}.  See {@link #ACTION_BATTERY_LOW},
1365     * {@link #ACTION_BATTERY_OKAY}, {@link #ACTION_POWER_CONNECTED},
1366     * and {@link #ACTION_POWER_DISCONNECTED} for distinct battery-related
1367     * broadcasts that are sent and can be received through manifest
1368     * receivers.
1369     *
1370     * <p class="note">This is a protected intent that can only be sent
1371     * by the system.
1372     */
1373    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1374    public static final String ACTION_BATTERY_CHANGED = "android.intent.action.BATTERY_CHANGED";
1375    /**
1376     * Broadcast Action:  Indicates low battery condition on the device.
1377     * This broadcast corresponds to the "Low battery warning" system dialog.
1378     *
1379     * <p class="note">This is a protected intent that can only be sent
1380     * by the system.
1381     */
1382    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1383    public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
1384    /**
1385     * Broadcast Action:  Indicates the battery is now okay after being low.
1386     * This will be sent after {@link #ACTION_BATTERY_LOW} once the battery has
1387     * gone back up to an okay state.
1388     *
1389     * <p class="note">This is a protected intent that can only be sent
1390     * by the system.
1391     */
1392    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1393    public static final String ACTION_BATTERY_OKAY = "android.intent.action.BATTERY_OKAY";
1394    /**
1395     * Broadcast Action:  External power has been connected to the device.
1396     * This is intended for applications that wish to register specifically to this notification.
1397     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1398     * stay active to receive this notification.  This action can be used to implement actions
1399     * that wait until power is available to trigger.
1400     *
1401     * <p class="note">This is a protected intent that can only be sent
1402     * by the system.
1403     */
1404    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1405    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
1406    /**
1407     * Broadcast Action:  External power has been removed from the device.
1408     * This is intended for applications that wish to register specifically to this notification.
1409     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
1410     * stay active to receive this notification.  This action can be used to implement actions
1411     * that wait until power is available to trigger.
1412     *
1413     * <p class="note">This is a protected intent that can only be sent
1414     * by the system.
1415     */
1416    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1417    public static final String ACTION_POWER_DISCONNECTED =
1418            "android.intent.action.ACTION_POWER_DISCONNECTED";
1419    /**
1420     * Broadcast Action:  Device is shutting down.
1421     * This is broadcast when the device is being shut down (completely turned
1422     * off, not sleeping).  Once the broadcast is complete, the final shutdown
1423     * will proceed and all unsaved data lost.  Apps will not normally need
1424     * to handle this, since the foreground activity will be paused as well.
1425     *
1426     * <p class="note">This is a protected intent that can only be sent
1427     * by the system.
1428     */
1429    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1430    public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
1431    /**
1432     * Activity Action:  Start this activity to request system shutdown.
1433     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
1434     * to request confirmation from the user before shutting down.
1435     *
1436     * <p class="note">This is a protected intent that can only be sent
1437     * by the system.
1438     *
1439     * {@hide}
1440     */
1441    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
1442    /**
1443     * Broadcast Action:  A sticky broadcast that indicates low memory
1444     * condition on the device
1445     *
1446     * <p class="note">This is a protected intent that can only be sent
1447     * by the system.
1448     */
1449    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1450    public static final String ACTION_DEVICE_STORAGE_LOW = "android.intent.action.DEVICE_STORAGE_LOW";
1451    /**
1452     * Broadcast Action:  Indicates low memory condition on the device no longer exists
1453     *
1454     * <p class="note">This is a protected intent that can only be sent
1455     * by the system.
1456     */
1457    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1458    public static final String ACTION_DEVICE_STORAGE_OK = "android.intent.action.DEVICE_STORAGE_OK";
1459    /**
1460     * Broadcast Action:  Indicates low memory condition notification acknowledged by user
1461     * and package management should be started.
1462     * This is triggered by the user from the ACTION_DEVICE_STORAGE_LOW
1463     * notification.
1464     */
1465    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1466    public static final String ACTION_MANAGE_PACKAGE_STORAGE = "android.intent.action.MANAGE_PACKAGE_STORAGE";
1467    /**
1468     * Broadcast Action:  The device has entered USB Mass Storage mode.
1469     * This is used mainly for the USB Settings panel.
1470     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1471     * when the SD card file system is mounted or unmounted
1472     */
1473    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1474    public static final String ACTION_UMS_CONNECTED = "android.intent.action.UMS_CONNECTED";
1475
1476    /**
1477     * Broadcast Action:  The device has exited USB Mass Storage mode.
1478     * This is used mainly for the USB Settings panel.
1479     * Apps should listen for ACTION_MEDIA_MOUNTED and ACTION_MEDIA_UNMOUNTED broadcasts to be notified
1480     * when the SD card file system is mounted or unmounted
1481     */
1482    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1483    public static final String ACTION_UMS_DISCONNECTED = "android.intent.action.UMS_DISCONNECTED";
1484
1485    /**
1486     * Broadcast Action:  External media has been removed.
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_REMOVED = "android.intent.action.MEDIA_REMOVED";
1491
1492    /**
1493     * Broadcast Action:  External media is present, but not mounted at its mount point.
1494     * The path to the mount point for the removed media is contained in the Intent.mData field.
1495     */
1496    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1497    public static final String ACTION_MEDIA_UNMOUNTED = "android.intent.action.MEDIA_UNMOUNTED";
1498
1499    /**
1500     * Broadcast Action:  External media is present, and being disk-checked
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_CHECKING = "android.intent.action.MEDIA_CHECKING";
1505
1506    /**
1507     * Broadcast Action:  External media is present, but is using an incompatible fs (or is blank)
1508     * The path to the mount point for the checking media is contained in the Intent.mData field.
1509     */
1510    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1511    public static final String ACTION_MEDIA_NOFS = "android.intent.action.MEDIA_NOFS";
1512
1513    /**
1514     * Broadcast Action:  External media is present and mounted at its mount point.
1515     * The path to the mount point for the removed media is contained in the Intent.mData field.
1516     * The Intent contains an extra with name "read-only" and Boolean value to indicate if the
1517     * media was mounted read only.
1518     */
1519    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1520    public static final String ACTION_MEDIA_MOUNTED = "android.intent.action.MEDIA_MOUNTED";
1521
1522    /**
1523     * Broadcast Action:  External media is unmounted because it is being shared via USB mass storage.
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_SHARED = "android.intent.action.MEDIA_SHARED";
1528
1529    /**
1530     * Broadcast Action:  External media was removed from SD card slot, but mount point was not unmounted.
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_BAD_REMOVAL = "android.intent.action.MEDIA_BAD_REMOVAL";
1535
1536    /**
1537     * Broadcast Action:  External media is present but cannot be mounted.
1538     * The path to the mount point for the removed media is contained in the Intent.mData field.
1539     */
1540    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1541    public static final String ACTION_MEDIA_UNMOUNTABLE = "android.intent.action.MEDIA_UNMOUNTABLE";
1542
1543   /**
1544     * Broadcast Action:  User has expressed the desire to remove the external storage media.
1545     * Applications should close all files they have open within the mount point when they receive this intent.
1546     * The path to the mount point for the media to be ejected is contained in the Intent.mData field.
1547     */
1548    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1549    public static final String ACTION_MEDIA_EJECT = "android.intent.action.MEDIA_EJECT";
1550
1551    /**
1552     * Broadcast Action:  The media scanner has started scanning a directory.
1553     * The path to the directory being scanned is contained in the Intent.mData field.
1554     */
1555    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1556    public static final String ACTION_MEDIA_SCANNER_STARTED = "android.intent.action.MEDIA_SCANNER_STARTED";
1557
1558   /**
1559     * Broadcast Action:  The media scanner has finished scanning a directory.
1560     * The path to the scanned directory is contained in the Intent.mData field.
1561     */
1562    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1563    public static final String ACTION_MEDIA_SCANNER_FINISHED = "android.intent.action.MEDIA_SCANNER_FINISHED";
1564
1565   /**
1566     * Broadcast Action:  Request the media scanner to scan a file and add it to the media database.
1567     * The path to the file is contained in the Intent.mData field.
1568     */
1569    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1570    public static final String ACTION_MEDIA_SCANNER_SCAN_FILE = "android.intent.action.MEDIA_SCANNER_SCAN_FILE";
1571
1572   /**
1573     * Broadcast Action:  The "Media Button" was pressed.  Includes a single
1574     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1575     * caused the broadcast.
1576     */
1577    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1578    public static final String ACTION_MEDIA_BUTTON = "android.intent.action.MEDIA_BUTTON";
1579
1580    /**
1581     * Broadcast Action:  The "Camera Button" was pressed.  Includes a single
1582     * extra field, {@link #EXTRA_KEY_EVENT}, containing the key event that
1583     * caused the broadcast.
1584     */
1585    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1586    public static final String ACTION_CAMERA_BUTTON = "android.intent.action.CAMERA_BUTTON";
1587
1588    // *** NOTE: @todo(*) The following really should go into a more domain-specific
1589    // location; they are not general-purpose actions.
1590
1591    /**
1592     * Broadcast Action: An GTalk connection has been established.
1593     */
1594    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1595    public static final String ACTION_GTALK_SERVICE_CONNECTED =
1596            "android.intent.action.GTALK_CONNECTED";
1597
1598    /**
1599     * Broadcast Action: An GTalk connection has been disconnected.
1600     */
1601    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1602    public static final String ACTION_GTALK_SERVICE_DISCONNECTED =
1603            "android.intent.action.GTALK_DISCONNECTED";
1604
1605    /**
1606     * Broadcast Action: An input method has been changed.
1607     */
1608    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1609    public static final String ACTION_INPUT_METHOD_CHANGED =
1610            "android.intent.action.INPUT_METHOD_CHANGED";
1611
1612    /**
1613     * <p>Broadcast Action: The user has switched the phone into or out of Airplane Mode. One or
1614     * more radios have been turned off or on. The intent will have the following extra value:</p>
1615     * <ul>
1616     *   <li><em>state</em> - A boolean value indicating whether Airplane Mode is on. If true,
1617     *   then cell radio and possibly other radios such as bluetooth or WiFi may have also been
1618     *   turned off</li>
1619     * </ul>
1620     *
1621     * <p class="note">This is a protected intent that can only be sent
1622     * by the system.
1623     */
1624    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1625    public static final String ACTION_AIRPLANE_MODE_CHANGED = "android.intent.action.AIRPLANE_MODE";
1626
1627    /**
1628     * Broadcast Action: Some content providers have parts of their namespace
1629     * where they publish new events or items that the user may be especially
1630     * interested in. For these things, they may broadcast this action when the
1631     * set of interesting items change.
1632     *
1633     * For example, GmailProvider sends this notification when the set of unread
1634     * mail in the inbox changes.
1635     *
1636     * <p>The data of the intent identifies which part of which provider
1637     * changed. When queried through the content resolver, the data URI will
1638     * return the data set in question.
1639     *
1640     * <p>The intent will have the following extra values:
1641     * <ul>
1642     *   <li><em>count</em> - The number of items in the data set. This is the
1643     *       same as the number of items in the cursor returned by querying the
1644     *       data URI. </li>
1645     * </ul>
1646     *
1647     * This intent will be sent at boot (if the count is non-zero) and when the
1648     * data set changes. It is possible for the data set to change without the
1649     * count changing (for example, if a new unread message arrives in the same
1650     * sync operation in which a message is archived). The phone should still
1651     * ring/vibrate/etc as normal in this case.
1652     */
1653    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1654    public static final String ACTION_PROVIDER_CHANGED =
1655            "android.intent.action.PROVIDER_CHANGED";
1656
1657    /**
1658     * Broadcast Action: Wired Headset plugged in or unplugged.
1659     *
1660     * <p>The intent will have the following extra values:
1661     * <ul>
1662     *   <li><em>state</em> - 0 for unplugged, 1 for plugged. </li>
1663     *   <li><em>name</em> - Headset type, human readable string </li>
1664     * </ul>
1665     * </ul>
1666     */
1667    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1668    public static final String ACTION_HEADSET_PLUG =
1669            "android.intent.action.HEADSET_PLUG";
1670
1671    /**
1672     * Broadcast Action: An outgoing call is about to be placed.
1673     *
1674     * <p>The Intent will have the following extra value:
1675     * <ul>
1676     *   <li><em>{@link android.content.Intent#EXTRA_PHONE_NUMBER}</em> -
1677     *       the phone number originally intended to be dialed.</li>
1678     * </ul>
1679     * <p>Once the broadcast is finished, the resultData is used as the actual
1680     * number to call.  If  <code>null</code>, no call will be placed.</p>
1681     * <p>It is perfectly acceptable for multiple receivers to process the
1682     * outgoing call in turn: for example, a parental control application
1683     * might verify that the user is authorized to place the call at that
1684     * time, then a number-rewriting application might add an area code if
1685     * one was not specified.</p>
1686     * <p>For consistency, any receiver whose purpose is to prohibit phone
1687     * calls should have a priority of 0, to ensure it will see the final
1688     * phone number to be dialed.
1689     * Any receiver whose purpose is to rewrite phone numbers to be called
1690     * should have a positive priority.
1691     * Negative priorities are reserved for the system for this broadcast;
1692     * using them may cause problems.</p>
1693     * <p>Any BroadcastReceiver receiving this Intent <em>must not</em>
1694     * abort the broadcast.</p>
1695     * <p>Emergency calls cannot be intercepted using this mechanism, and
1696     * other calls cannot be modified to call emergency numbers using this
1697     * mechanism.
1698     * <p>You must hold the
1699     * {@link android.Manifest.permission#PROCESS_OUTGOING_CALLS}
1700     * permission to receive this Intent.</p>
1701     *
1702     * <p class="note">This is a protected intent that can only be sent
1703     * by the system.
1704     */
1705    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1706    public static final String ACTION_NEW_OUTGOING_CALL =
1707            "android.intent.action.NEW_OUTGOING_CALL";
1708
1709    /**
1710     * Broadcast Action: Have the device reboot.  This is only for use by
1711     * system code.
1712     *
1713     * <p class="note">This is a protected intent that can only be sent
1714     * by the system.
1715     */
1716    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1717    public static final String ACTION_REBOOT =
1718            "android.intent.action.REBOOT";
1719
1720    /**
1721     * Broadcast Action:  A sticky broadcast indicating the phone was docked
1722     * or undocked.  Includes the extra
1723     * field {@link #EXTRA_DOCK_STATE}, containing the current dock state.
1724     * This is intended for monitoring the current dock state.
1725     * To launch an activity from a dock state change, use {@link #CATEGORY_CAR_DOCK}
1726     * or {@link #CATEGORY_DESK_DOCK} instead.
1727     */
1728    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
1729    public static final String ACTION_DOCK_EVENT =
1730            "android.intent.action.DOCK_EVENT";
1731
1732    /**
1733     * Broadcast Action: a remote intent is to be broadcasted.
1734     *
1735     * A remote intent is used for remote RPC between devices. The remote intent
1736     * is serialized and sent from one device to another device. The receiving
1737     * device parses the remote intent and broadcasts it. Note that anyone can
1738     * broadcast a remote intent. However, if the intent receiver of the remote intent
1739     * does not trust intent broadcasts from arbitrary intent senders, it should require
1740     * the sender to hold certain permissions so only trusted sender's broadcast will be
1741     * let through.
1742     * @hide
1743     */
1744    public static final String ACTION_REMOTE_INTENT =
1745            "android.intent.action.REMOTE_INTENT";
1746
1747    /**
1748     * Broadcast Action: hook for permforming cleanup after a system update.
1749     *
1750     * The broadcast is sent when the system is booting, before the
1751     * BOOT_COMPLETED broadcast.  It is only sent to receivers in the system
1752     * image.  A receiver for this should do its work and then disable itself
1753     * so that it does not get run again at the next boot.
1754     * @hide
1755     */
1756    public static final String ACTION_PRE_BOOT_COMPLETED =
1757            "android.intent.action.PRE_BOOT_COMPLETED";
1758
1759    // ---------------------------------------------------------------------
1760    // ---------------------------------------------------------------------
1761    // Standard intent categories (see addCategory()).
1762
1763    /**
1764     * Set if the activity should be an option for the default action
1765     * (center press) to perform on a piece of data.  Setting this will
1766     * hide from the user any activities without it set when performing an
1767     * action on some data.  Note that this is normal -not- set in the
1768     * Intent when initiating an action -- it is for use in intent filters
1769     * specified in packages.
1770     */
1771    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1772    public static final String CATEGORY_DEFAULT = "android.intent.category.DEFAULT";
1773    /**
1774     * Activities that can be safely invoked from a browser must support this
1775     * category.  For example, if the user is viewing a web page or an e-mail
1776     * and clicks on a link in the text, the Intent generated execute that
1777     * link will require the BROWSABLE category, so that only activities
1778     * supporting this category will be considered as possible actions.  By
1779     * supporting this category, you are promising that there is nothing
1780     * damaging (without user intervention) that can happen by invoking any
1781     * matching Intent.
1782     */
1783    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1784    public static final String CATEGORY_BROWSABLE = "android.intent.category.BROWSABLE";
1785    /**
1786     * Set if the activity should be considered as an alternative action to
1787     * the data the user is currently viewing.  See also
1788     * {@link #CATEGORY_SELECTED_ALTERNATIVE} for an alternative action that
1789     * applies to the selection in a list of items.
1790     *
1791     * <p>Supporting this category means that you would like your activity to be
1792     * displayed in the set of alternative things the user can do, usually as
1793     * part of the current activity's options menu.  You will usually want to
1794     * include a specific label in the &lt;intent-filter&gt; of this action
1795     * describing to the user what it does.
1796     *
1797     * <p>The action of IntentFilter with this category is important in that it
1798     * describes the specific action the target will perform.  This generally
1799     * should not be a generic action (such as {@link #ACTION_VIEW}, but rather
1800     * a specific name such as "com.android.camera.action.CROP.  Only one
1801     * alternative of any particular action will be shown to the user, so using
1802     * a specific action like this makes sure that your alternative will be
1803     * displayed while also allowing other applications to provide their own
1804     * overrides of that particular action.
1805     */
1806    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1807    public static final String CATEGORY_ALTERNATIVE = "android.intent.category.ALTERNATIVE";
1808    /**
1809     * Set if the activity should be considered as an alternative selection
1810     * action to the data the user has currently selected.  This is like
1811     * {@link #CATEGORY_ALTERNATIVE}, but is used in activities showing a list
1812     * of items from which the user can select, giving them alternatives to the
1813     * default action that will be performed on it.
1814     */
1815    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1816    public static final String CATEGORY_SELECTED_ALTERNATIVE = "android.intent.category.SELECTED_ALTERNATIVE";
1817    /**
1818     * Intended to be used as a tab inside of an containing TabActivity.
1819     */
1820    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1821    public static final String CATEGORY_TAB = "android.intent.category.TAB";
1822    /**
1823     * Should be displayed in the top-level launcher.
1824     */
1825    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1826    public static final String CATEGORY_LAUNCHER = "android.intent.category.LAUNCHER";
1827    /**
1828     * Provides information about the package it is in; typically used if
1829     * a package does not contain a {@link #CATEGORY_LAUNCHER} to provide
1830     * a front-door to the user without having to be shown in the all apps list.
1831     */
1832    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1833    public static final String CATEGORY_INFO = "android.intent.category.INFO";
1834    /**
1835     * This is the home activity, that is the first activity that is displayed
1836     * when the device boots.
1837     */
1838    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1839    public static final String CATEGORY_HOME = "android.intent.category.HOME";
1840    /**
1841     * This activity is a preference panel.
1842     */
1843    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1844    public static final String CATEGORY_PREFERENCE = "android.intent.category.PREFERENCE";
1845    /**
1846     * This activity is a development preference panel.
1847     */
1848    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1849    public static final String CATEGORY_DEVELOPMENT_PREFERENCE = "android.intent.category.DEVELOPMENT_PREFERENCE";
1850    /**
1851     * Capable of running inside a parent activity container.
1852     */
1853    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1854    public static final String CATEGORY_EMBED = "android.intent.category.EMBED";
1855    /**
1856     * This activity may be exercised by the monkey or other automated test tools.
1857     */
1858    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1859    public static final String CATEGORY_MONKEY = "android.intent.category.MONKEY";
1860    /**
1861     * To be used as a test (not part of the normal user experience).
1862     */
1863    public static final String CATEGORY_TEST = "android.intent.category.TEST";
1864    /**
1865     * To be used as a unit test (run through the Test Harness).
1866     */
1867    public static final String CATEGORY_UNIT_TEST = "android.intent.category.UNIT_TEST";
1868    /**
1869     * To be used as an sample code example (not part of the normal user
1870     * experience).
1871     */
1872    public static final String CATEGORY_SAMPLE_CODE = "android.intent.category.SAMPLE_CODE";
1873    /**
1874     * Used to indicate that a GET_CONTENT intent only wants URIs that can be opened with
1875     * ContentResolver.openInputStream. Openable URIs must support the columns in OpenableColumns
1876     * when queried, though it is allowable for those columns to be blank.
1877     */
1878    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1879    public static final String CATEGORY_OPENABLE = "android.intent.category.OPENABLE";
1880
1881    /**
1882     * To be used as code under test for framework instrumentation tests.
1883     */
1884    public static final String CATEGORY_FRAMEWORK_INSTRUMENTATION_TEST =
1885            "android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST";
1886    /**
1887     * An activity to run when device is inserted into a car dock.
1888    * Used with {@link #ACTION_MAIN} to launch an activity.
1889     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1890     */
1891    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1892    public static final String CATEGORY_CAR_DOCK = "android.intent.category.CAR_DOCK";
1893    /**
1894     * An activity to run when device is inserted into a car dock.
1895     * Used with {@link #ACTION_MAIN} to launch an activity.
1896     * To monitor dock state, use {@link #ACTION_DOCK_EVENT} instead.
1897     */
1898    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
1899    public static final String CATEGORY_DESK_DOCK = "android.intent.category.DESK_DOCK";
1900
1901    // ---------------------------------------------------------------------
1902    // ---------------------------------------------------------------------
1903    // Standard extra data keys.
1904
1905    /**
1906     * The initial data to place in a newly created record.  Use with
1907     * {@link #ACTION_INSERT}.  The data here is a Map containing the same
1908     * fields as would be given to the underlying ContentProvider.insert()
1909     * call.
1910     */
1911    public static final String EXTRA_TEMPLATE = "android.intent.extra.TEMPLATE";
1912
1913    /**
1914     * A constant CharSequence that is associated with the Intent, used with
1915     * {@link #ACTION_SEND} to supply the literal data to be sent.  Note that
1916     * this may be a styled CharSequence, so you must use
1917     * {@link Bundle#getCharSequence(String) Bundle.getCharSequence()} to
1918     * retrieve it.
1919     */
1920    public static final String EXTRA_TEXT = "android.intent.extra.TEXT";
1921
1922    /**
1923     * A content: URI holding a stream of data associated with the Intent,
1924     * used with {@link #ACTION_SEND} to supply the data being sent.
1925     */
1926    public static final String EXTRA_STREAM = "android.intent.extra.STREAM";
1927
1928    /**
1929     * A String[] holding e-mail addresses that should be delivered to.
1930     */
1931    public static final String EXTRA_EMAIL       = "android.intent.extra.EMAIL";
1932
1933    /**
1934     * A String[] holding e-mail addresses that should be carbon copied.
1935     */
1936    public static final String EXTRA_CC       = "android.intent.extra.CC";
1937
1938    /**
1939     * A String[] holding e-mail addresses that should be blind carbon copied.
1940     */
1941    public static final String EXTRA_BCC      = "android.intent.extra.BCC";
1942
1943    /**
1944     * A constant string holding the desired subject line of a message.
1945     */
1946    public static final String EXTRA_SUBJECT  = "android.intent.extra.SUBJECT";
1947
1948    /**
1949     * An Intent describing the choices you would like shown with
1950     * {@link #ACTION_PICK_ACTIVITY}.
1951     */
1952    public static final String EXTRA_INTENT = "android.intent.extra.INTENT";
1953
1954    /**
1955     * A CharSequence dialog title to provide to the user when used with a
1956     * {@link #ACTION_CHOOSER}.
1957     */
1958    public static final String EXTRA_TITLE = "android.intent.extra.TITLE";
1959
1960    /**
1961     * A Parcelable[] of {@link Intent} or
1962     * {@link android.content.pm.LabeledIntent} objects as set with
1963     * {@link #putExtra(String, Parcelable[])} of additional activities to place
1964     * a the front of the list of choices, when shown to the user with a
1965     * {@link #ACTION_CHOOSER}.
1966     */
1967    public static final String EXTRA_INITIAL_INTENTS = "android.intent.extra.INITIAL_INTENTS";
1968
1969    /**
1970     * A {@link android.view.KeyEvent} object containing the event that
1971     * triggered the creation of the Intent it is in.
1972     */
1973    public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
1974
1975    /**
1976     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
1977     * before shutting down.
1978     *
1979     * {@hide}
1980     */
1981    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
1982
1983    /**
1984     * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
1985     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action
1986     * of restarting the application.
1987     */
1988    public static final String EXTRA_DONT_KILL_APP = "android.intent.extra.DONT_KILL_APP";
1989
1990    /**
1991     * A String holding the phone number originally entered in
1992     * {@link android.content.Intent#ACTION_NEW_OUTGOING_CALL}, or the actual
1993     * number to call in a {@link android.content.Intent#ACTION_CALL}.
1994     */
1995    public static final String EXTRA_PHONE_NUMBER = "android.intent.extra.PHONE_NUMBER";
1996    /**
1997     * Used as an int extra field in {@link android.content.Intent#ACTION_UID_REMOVED}
1998     * intents to supply the uid the package had been assigned.  Also an optional
1999     * extra in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
2000     * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} for the same
2001     * purpose.
2002     */
2003    public static final String EXTRA_UID = "android.intent.extra.UID";
2004
2005    /**
2006     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2007     * intents to indicate whether this represents a full uninstall (removing
2008     * both the code and its data) or a partial uninstall (leaving its data,
2009     * implying that this is an update).
2010     */
2011    public static final String EXTRA_DATA_REMOVED = "android.intent.extra.DATA_REMOVED";
2012
2013    /**
2014     * Used as a boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED}
2015     * intents to indicate that this is a replacement of the package, so this
2016     * broadcast will immediately be followed by an add broadcast for a
2017     * different version of the same package.
2018     */
2019    public static final String EXTRA_REPLACING = "android.intent.extra.REPLACING";
2020
2021    /**
2022     * Used as an int extra field in {@link android.app.AlarmManager} intents
2023     * to tell the application being invoked how many pending alarms are being
2024     * delievered with the intent.  For one-shot alarms this will always be 1.
2025     * For recurring alarms, this might be greater than 1 if the device was
2026     * asleep or powered off at the time an earlier alarm would have been
2027     * delivered.
2028     */
2029    public static final String EXTRA_ALARM_COUNT = "android.intent.extra.ALARM_COUNT";
2030
2031    /**
2032     * Used as an int extra field in {@link android.content.Intent#ACTION_DOCK_EVENT}
2033     * intents to request the dock state.  Possible values are
2034     * {@link android.content.Intent#EXTRA_DOCK_STATE_UNDOCKED},
2035     * {@link android.content.Intent#EXTRA_DOCK_STATE_DESK}, or
2036     * {@link android.content.Intent#EXTRA_DOCK_STATE_CAR}.
2037     */
2038    public static final String EXTRA_DOCK_STATE = "android.intent.extra.DOCK_STATE";
2039
2040    /**
2041     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2042     * to represent that the phone is not in any dock.
2043     */
2044    public static final int EXTRA_DOCK_STATE_UNDOCKED = 0;
2045
2046    /**
2047     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2048     * to represent that the phone is in a desk dock.
2049     */
2050    public static final int EXTRA_DOCK_STATE_DESK = 1;
2051
2052    /**
2053     * Used as an int value for {@link android.content.Intent#EXTRA_DOCK_STATE}
2054     * to represent that the phone is in a car dock.
2055     */
2056    public static final int EXTRA_DOCK_STATE_CAR = 2;
2057
2058    /**
2059     * Used as a parcelable extra field in {@link #ACTION_APP_ERROR}, containing
2060     * the bug report.
2061     *
2062     * @hide
2063     */
2064    public static final String EXTRA_BUG_REPORT = "android.intent.extra.BUG_REPORT";
2065
2066    /**
2067     * Used as a string extra field when sending an intent to PackageInstaller to install a
2068     * package. Specifies the installer package name; this package will receive the
2069     * {@link #ACTION_APP_ERROR} intent.
2070     *
2071     * @hide
2072     */
2073    public static final String EXTRA_INSTALLER_PACKAGE_NAME
2074            = "android.intent.extra.INSTALLER_PACKAGE_NAME";
2075
2076    /**
2077     * Used in the extra field in the remote intent. It's astring token passed with the
2078     * remote intent.
2079     */
2080    public static final String EXTRA_REMOTE_INTENT_TOKEN =
2081            "android.intent.extra.remote_intent_token";
2082
2083    /**
2084     * Used as an int extra field in {@link android.content.Intent#ACTION_PACKAGE_CHANGED}
2085     * intent to supply the name of the component that changed.
2086     *
2087     */
2088    public static final String EXTRA_CHANGED_COMPONENT_NAME =
2089            "android.intent.extra.changed_component_name";
2090
2091    /**
2092     * @hide
2093     * Magic extra system code can use when binding, to give a label for
2094     * who it is that has bound to a service.  This is an integer giving
2095     * a framework string resource that can be displayed to the user.
2096     */
2097    public static final String EXTRA_CLIENT_LABEL =
2098            "android.intent.extra.client_label";
2099
2100    /**
2101     * @hide
2102     * Magic extra system code can use when binding, to give a PendingIntent object
2103     * that can be launched for the user to disable the system's use of this
2104     * service.
2105     */
2106    public static final String EXTRA_CLIENT_INTENT =
2107            "android.intent.extra.client_intent";
2108
2109    // ---------------------------------------------------------------------
2110    // ---------------------------------------------------------------------
2111    // Intent flags (see mFlags variable).
2112
2113    /**
2114     * If set, the recipient of this Intent will be granted permission to
2115     * perform read operations on the Uri in the Intent's data.
2116     */
2117    public static final int FLAG_GRANT_READ_URI_PERMISSION = 0x00000001;
2118    /**
2119     * If set, the recipient of this Intent will be granted permission to
2120     * perform write operations on the Uri in the Intent's data.
2121     */
2122    public static final int FLAG_GRANT_WRITE_URI_PERMISSION = 0x00000002;
2123    /**
2124     * Can be set by the caller to indicate that this Intent is coming from
2125     * a background operation, not from direct user interaction.
2126     */
2127    public static final int FLAG_FROM_BACKGROUND = 0x00000004;
2128    /**
2129     * A flag you can enable for debugging: when set, log messages will be
2130     * printed during the resolution of this intent to show you what has
2131     * been found to create the final resolved list.
2132     */
2133    public static final int FLAG_DEBUG_LOG_RESOLUTION = 0x00000008;
2134
2135    /**
2136     * If set, the new activity is not kept in the history stack.  As soon as
2137     * the user navigates away from it, the activity is finished.  This may also
2138     * be set with the {@link android.R.styleable#AndroidManifestActivity_noHistory
2139     * noHistory} attribute.
2140     */
2141    public static final int FLAG_ACTIVITY_NO_HISTORY = 0x40000000;
2142    /**
2143     * If set, the activity will not be launched if it is already running
2144     * at the top of the history stack.
2145     */
2146    public static final int FLAG_ACTIVITY_SINGLE_TOP = 0x20000000;
2147    /**
2148     * If set, this activity will become the start of a new task on this
2149     * history stack.  A task (from the activity that started it to the
2150     * next task activity) defines an atomic group of activities that the
2151     * user can move to.  Tasks can be moved to the foreground and background;
2152     * all of the activities inside of a particular task always remain in
2153     * the same order.  See
2154     * <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2155     * Activities and Tasks</a> for more details on tasks.
2156     *
2157     * <p>This flag is generally used by activities that want
2158     * to present a "launcher" style behavior: they give the user a list of
2159     * separate things that can be done, which otherwise run completely
2160     * independently of the activity launching them.
2161     *
2162     * <p>When using this flag, if a task is already running for the activity
2163     * you are now starting, then a new activity will not be started; instead,
2164     * the current task will simply be brought to the front of the screen with
2165     * the state it was last in.  See {@link #FLAG_ACTIVITY_MULTIPLE_TASK} for a flag
2166     * to disable this behavior.
2167     *
2168     * <p>This flag can not be used when the caller is requesting a result from
2169     * the activity being launched.
2170     */
2171    public static final int FLAG_ACTIVITY_NEW_TASK = 0x10000000;
2172    /**
2173     * <strong>Do not use this flag unless you are implementing your own
2174     * top-level application launcher.</strong>  Used in conjunction with
2175     * {@link #FLAG_ACTIVITY_NEW_TASK} to disable the
2176     * behavior of bringing an existing task to the foreground.  When set,
2177     * a new task is <em>always</em> started to host the Activity for the
2178     * Intent, regardless of whether there is already an existing task running
2179     * the same thing.
2180     *
2181     * <p><strong>Because the default system does not include graphical task management,
2182     * you should not use this flag unless you provide some way for a user to
2183     * return back to the tasks you have launched.</strong>
2184     *
2185     * <p>This flag is ignored if
2186     * {@link #FLAG_ACTIVITY_NEW_TASK} is not set.
2187     *
2188     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2189     * Activities and Tasks</a> for more details on tasks.
2190     */
2191    public static final int FLAG_ACTIVITY_MULTIPLE_TASK = 0x08000000;
2192    /**
2193     * If set, and the activity being launched is already running in the
2194     * current task, then instead of launching a new instance of that activity,
2195     * all of the other activities on top of it will be closed and this Intent
2196     * will be delivered to the (now on top) old activity as a new Intent.
2197     *
2198     * <p>For example, consider a task consisting of the activities: A, B, C, D.
2199     * If D calls startActivity() with an Intent that resolves to the component
2200     * of activity B, then C and D will be finished and B receive the given
2201     * Intent, resulting in the stack now being: A, B.
2202     *
2203     * <p>The currently running instance of activity B in the above example will
2204     * either receive the new intent you are starting here in its
2205     * onNewIntent() method, or be itself finished and restarted with the
2206     * new intent.  If it has declared its launch mode to be "multiple" (the
2207     * default) and you have not set {@link #FLAG_ACTIVITY_SINGLE_TOP} in
2208     * the same intent, then it will be finished and re-created; for all other
2209     * launch modes or if {@link #FLAG_ACTIVITY_SINGLE_TOP} is set then this
2210     * Intent will be delivered to the current instance's onNewIntent().
2211     *
2212     * <p>This launch mode can also be used to good effect in conjunction with
2213     * {@link #FLAG_ACTIVITY_NEW_TASK}: if used to start the root activity
2214     * of a task, it will bring any currently running instance of that task
2215     * to the foreground, and then clear it to its root state.  This is
2216     * especially useful, for example, when launching an activity from the
2217     * notification manager.
2218     *
2219     * <p>See <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
2220     * Activities and Tasks</a> for more details on tasks.
2221     */
2222    public static final int FLAG_ACTIVITY_CLEAR_TOP = 0x04000000;
2223    /**
2224     * If set and this intent is being used to launch a new activity from an
2225     * existing one, then the reply target of the existing activity will be
2226     * transfered to the new activity.  This way the new activity can call
2227     * {@link android.app.Activity#setResult} and have that result sent back to
2228     * the reply target of the original activity.
2229     */
2230    public static final int FLAG_ACTIVITY_FORWARD_RESULT = 0x02000000;
2231    /**
2232     * If set and this intent is being used to launch a new activity from an
2233     * existing one, the current activity will not be counted as the top
2234     * activity for deciding whether the new intent should be delivered to
2235     * the top instead of starting a new one.  The previous activity will
2236     * be used as the top, with the assumption being that the current activity
2237     * will finish itself immediately.
2238     */
2239    public static final int FLAG_ACTIVITY_PREVIOUS_IS_TOP = 0x01000000;
2240    /**
2241     * If set, the new activity is not kept in the list of recently launched
2242     * activities.
2243     */
2244    public static final int FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS = 0x00800000;
2245    /**
2246     * This flag is not normally set by application code, but set for you by
2247     * the system as described in the
2248     * {@link android.R.styleable#AndroidManifestActivity_launchMode
2249     * launchMode} documentation for the singleTask mode.
2250     */
2251    public static final int FLAG_ACTIVITY_BROUGHT_TO_FRONT = 0x00400000;
2252    /**
2253     * If set, and this activity is either being started in a new task or
2254     * bringing to the top an existing task, then it will be launched as
2255     * the front door of the task.  This will result in the application of
2256     * any affinities needed to have that task in the proper state (either
2257     * moving activities to or from it), or simply resetting that task to
2258     * its initial state if needed.
2259     */
2260    public static final int FLAG_ACTIVITY_RESET_TASK_IF_NEEDED = 0x00200000;
2261    /**
2262     * This flag is not normally set by application code, but set for you by
2263     * the system if this activity is being launched from history
2264     * (longpress home key).
2265     */
2266    public static final int FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY = 0x00100000;
2267    /**
2268     * If set, this marks a point in the task's activity stack that should
2269     * be cleared when the task is reset.  That is, the next time the task
2270     * is brought to the foreground with
2271     * {@link #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED} (typically as a result of
2272     * the user re-launching it from home), this activity and all on top of
2273     * it will be finished so that the user does not return to them, but
2274     * instead returns to whatever activity preceeded it.
2275     *
2276     * <p>This is useful for cases where you have a logical break in your
2277     * application.  For example, an e-mail application may have a command
2278     * to view an attachment, which launches an image view activity to
2279     * display it.  This activity should be part of the e-mail application's
2280     * task, since it is a part of the task the user is involved in.  However,
2281     * if the user leaves that task, and later selects the e-mail app from
2282     * home, we may like them to return to the conversation they were
2283     * viewing, not the picture attachment, since that is confusing.  By
2284     * setting this flag when launching the image viewer, that viewer and
2285     * any activities it starts will be removed the next time the user returns
2286     * to mail.
2287     */
2288    public static final int FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET = 0x00080000;
2289    /**
2290     * If set, this flag will prevent the normal {@link android.app.Activity#onUserLeaveHint}
2291     * callback from occurring on the current frontmost activity before it is
2292     * paused as the newly-started activity is brought to the front.
2293     *
2294     * <p>Typically, an activity can rely on that callback to indicate that an
2295     * explicit user action has caused their activity to be moved out of the
2296     * foreground. The callback marks an appropriate point in the activity's
2297     * lifecycle for it to dismiss any notifications that it intends to display
2298     * "until the user has seen them," such as a blinking LED.
2299     *
2300     * <p>If an activity is ever started via any non-user-driven events such as
2301     * phone-call receipt or an alarm handler, this flag should be passed to {@link
2302     * Context#startActivity Context.startActivity}, ensuring that the pausing
2303     * activity does not think the user has acknowledged its notification.
2304     */
2305    public static final int FLAG_ACTIVITY_NO_USER_ACTION = 0x00040000;
2306    /**
2307     * If set in an Intent passed to {@link Context#startActivity Context.startActivity()},
2308     * this flag will cause the launched activity to be brought to the front of its
2309     * task's history stack if it is already running.
2310     *
2311     * <p>For example, consider a task consisting of four activities: A, B, C, D.
2312     * If D calls startActivity() with an Intent that resolves to the component
2313     * of activity B, then B will be brought to the front of the history stack,
2314     * with this resulting order:  A, C, D, B.
2315     *
2316     * This flag will be ignored if {@link #FLAG_ACTIVITY_CLEAR_TOP} is also
2317     * specified.
2318     */
2319    public static final int FLAG_ACTIVITY_REORDER_TO_FRONT = 0X00020000;
2320    /**
2321     * If set, when sending a broadcast only registered receivers will be
2322     * called -- no BroadcastReceiver components will be launched.
2323     */
2324    public static final int FLAG_RECEIVER_REGISTERED_ONLY = 0x40000000;
2325    /**
2326     * If set, when sending a broadcast <i>before boot has completed</i> only
2327     * registered receivers will be called -- no BroadcastReceiver components
2328     * will be launched.  Sticky intent state will be recorded properly even
2329     * if no receivers wind up being called.  If {@link #FLAG_RECEIVER_REGISTERED_ONLY}
2330     * is specified in the broadcast intent, this flag is unnecessary.
2331     *
2332     * <p>This flag is only for use by system sevices as a convenience to
2333     * avoid having to implement a more complex mechanism around detection
2334     * of boot completion.
2335     *
2336     * @hide
2337     */
2338    public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT = 0x20000000;
2339    /**
2340     * Set when this broadcast is for a boot upgrade, a special mode that
2341     * allows the broadcast to be sent before the system is ready and launches
2342     * the app process with no providers running in it.
2343     * @hide
2344     */
2345    public static final int FLAG_RECEIVER_BOOT_UPGRADE = 0x10000000;
2346
2347    /**
2348     * @hide Flags that can't be changed with PendingIntent.
2349     */
2350    public static final int IMMUTABLE_FLAGS =
2351            FLAG_GRANT_READ_URI_PERMISSION
2352            | FLAG_GRANT_WRITE_URI_PERMISSION;
2353
2354    // ---------------------------------------------------------------------
2355    // ---------------------------------------------------------------------
2356    // toUri() and parseUri() options.
2357
2358    /**
2359     * Flag for use with {@link #toUri} and {@link #parseUri}: the URI string
2360     * always has the "intent:" scheme.  This syntax can be used when you want
2361     * to later disambiguate between URIs that are intended to describe an
2362     * Intent vs. all others that should be treated as raw URIs.  When used
2363     * with {@link #parseUri}, any other scheme will result in a generic
2364     * VIEW action for that raw URI.
2365     */
2366    public static final int URI_INTENT_SCHEME = 1<<0;
2367
2368    // ---------------------------------------------------------------------
2369
2370    private String mAction;
2371    private Uri mData;
2372    private String mType;
2373    private String mPackage;
2374    private ComponentName mComponent;
2375    private int mFlags;
2376    private HashSet<String> mCategories;
2377    private Bundle mExtras;
2378
2379    // ---------------------------------------------------------------------
2380
2381    /**
2382     * Create an empty intent.
2383     */
2384    public Intent() {
2385    }
2386
2387    /**
2388     * Copy constructor.
2389     */
2390    public Intent(Intent o) {
2391        this.mAction = o.mAction;
2392        this.mData = o.mData;
2393        this.mType = o.mType;
2394        this.mPackage = o.mPackage;
2395        this.mComponent = o.mComponent;
2396        this.mFlags = o.mFlags;
2397        if (o.mCategories != null) {
2398            this.mCategories = new HashSet<String>(o.mCategories);
2399        }
2400        if (o.mExtras != null) {
2401            this.mExtras = new Bundle(o.mExtras);
2402        }
2403    }
2404
2405    @Override
2406    public Object clone() {
2407        return new Intent(this);
2408    }
2409
2410    private Intent(Intent o, boolean all) {
2411        this.mAction = o.mAction;
2412        this.mData = o.mData;
2413        this.mType = o.mType;
2414        this.mPackage = o.mPackage;
2415        this.mComponent = o.mComponent;
2416        if (o.mCategories != null) {
2417            this.mCategories = new HashSet<String>(o.mCategories);
2418        }
2419    }
2420
2421    /**
2422     * Make a clone of only the parts of the Intent that are relevant for
2423     * filter matching: the action, data, type, component, and categories.
2424     */
2425    public Intent cloneFilter() {
2426        return new Intent(this, false);
2427    }
2428
2429    /**
2430     * Create an intent with a given action.  All other fields (data, type,
2431     * class) are null.  Note that the action <em>must</em> be in a
2432     * namespace because Intents are used globally in the system -- for
2433     * example the system VIEW action is android.intent.action.VIEW; an
2434     * application's custom action would be something like
2435     * com.google.app.myapp.CUSTOM_ACTION.
2436     *
2437     * @param action The Intent action, such as ACTION_VIEW.
2438     */
2439    public Intent(String action) {
2440        mAction = action;
2441    }
2442
2443    /**
2444     * Create an intent with a given action and for a given data url.  Note
2445     * that the action <em>must</em> be in a namespace because Intents are
2446     * used globally in the system -- for example the system VIEW action is
2447     * android.intent.action.VIEW; an application's custom action would be
2448     * something like com.google.app.myapp.CUSTOM_ACTION.
2449     *
2450     * <p><em>Note: scheme and host name matching in the Android framework is
2451     * case-sensitive, unlike the formal RFC.  As a result,
2452     * you should always ensure that you write your Uri with these elements
2453     * using lower case letters, and normalize any Uris you receive from
2454     * outside of Android to ensure the scheme and host is lower case.</em></p>
2455     *
2456     * @param action The Intent action, such as ACTION_VIEW.
2457     * @param uri The Intent data URI.
2458     */
2459    public Intent(String action, Uri uri) {
2460        mAction = action;
2461        mData = uri;
2462    }
2463
2464    /**
2465     * Create an intent for a specific component.  All other fields (action, data,
2466     * type, class) are null, though they can be modified later with explicit
2467     * calls.  This provides a convenient way to create an intent that is
2468     * intended to execute a hard-coded class name, rather than relying on the
2469     * system to find an appropriate class for you; see {@link #setComponent}
2470     * for more information on the repercussions of this.
2471     *
2472     * @param packageContext A Context of the application package implementing
2473     * this class.
2474     * @param cls The component class that is to be used for the intent.
2475     *
2476     * @see #setClass
2477     * @see #setComponent
2478     * @see #Intent(String, android.net.Uri , Context, Class)
2479     */
2480    public Intent(Context packageContext, Class<?> cls) {
2481        mComponent = new ComponentName(packageContext, cls);
2482    }
2483
2484    /**
2485     * Create an intent for a specific component with a specified action and data.
2486     * This is equivalent using {@link #Intent(String, android.net.Uri)} to
2487     * construct the Intent and then calling {@link #setClass} to set its
2488     * class.
2489     *
2490     * <p><em>Note: scheme and host name matching in the Android framework is
2491     * case-sensitive, unlike the formal RFC.  As a result,
2492     * you should always ensure that you write your Uri with these elements
2493     * using lower case letters, and normalize any Uris you receive from
2494     * outside of Android to ensure the scheme and host is lower case.</em></p>
2495     *
2496     * @param action The Intent action, such as ACTION_VIEW.
2497     * @param uri The Intent data URI.
2498     * @param packageContext A Context of the application package implementing
2499     * this class.
2500     * @param cls The component class that is to be used for the intent.
2501     *
2502     * @see #Intent(String, android.net.Uri)
2503     * @see #Intent(Context, Class)
2504     * @see #setClass
2505     * @see #setComponent
2506     */
2507    public Intent(String action, Uri uri,
2508            Context packageContext, Class<?> cls) {
2509        mAction = action;
2510        mData = uri;
2511        mComponent = new ComponentName(packageContext, cls);
2512    }
2513
2514    /**
2515     * Call {@link #parseUri} with 0 flags.
2516     * @deprecated Use {@link #parseUri} instead.
2517     */
2518    @Deprecated
2519    public static Intent getIntent(String uri) throws URISyntaxException {
2520        return parseUri(uri, 0);
2521    }
2522
2523    /**
2524     * Create an intent from a URI.  This URI may encode the action,
2525     * category, and other intent fields, if it was returned by
2526     * {@link #toUri}.  If the Intent was not generate by toUri(), its data
2527     * will be the entire URI and its action will be ACTION_VIEW.
2528     *
2529     * <p>The URI given here must not be relative -- that is, it must include
2530     * the scheme and full path.
2531     *
2532     * @param uri The URI to turn into an Intent.
2533     * @param flags Additional processing flags.  Either 0 or
2534     * {@link #URI_INTENT_SCHEME}.
2535     *
2536     * @return Intent The newly created Intent object.
2537     *
2538     * @throws URISyntaxException Throws URISyntaxError if the basic URI syntax
2539     * it bad (as parsed by the Uri class) or the Intent data within the
2540     * URI is invalid.
2541     *
2542     * @see #toUri
2543     */
2544    public static Intent parseUri(String uri, int flags) throws URISyntaxException {
2545        int i = 0;
2546        try {
2547            // Validate intent scheme for if requested.
2548            if ((flags&URI_INTENT_SCHEME) != 0) {
2549                if (!uri.startsWith("intent:")) {
2550                    Intent intent = new Intent(ACTION_VIEW);
2551                    try {
2552                        intent.setData(Uri.parse(uri));
2553                    } catch (IllegalArgumentException e) {
2554                        throw new URISyntaxException(uri, e.getMessage());
2555                    }
2556                    return intent;
2557                }
2558            }
2559
2560            // simple case
2561            i = uri.lastIndexOf("#");
2562            if (i == -1) return new Intent(ACTION_VIEW, Uri.parse(uri));
2563
2564            // old format Intent URI
2565            if (!uri.startsWith("#Intent;", i)) return getIntentOld(uri);
2566
2567            // new format
2568            Intent intent = new Intent(ACTION_VIEW);
2569
2570            // fetch data part, if present
2571            String data = i >= 0 ? uri.substring(0, i) : null;
2572            String scheme = null;
2573            i += "#Intent;".length();
2574
2575            // loop over contents of Intent, all name=value;
2576            while (!uri.startsWith("end", i)) {
2577                int eq = uri.indexOf('=', i);
2578                int semi = uri.indexOf(';', eq);
2579                String value = Uri.decode(uri.substring(eq + 1, semi));
2580
2581                // action
2582                if (uri.startsWith("action=", i)) {
2583                    intent.mAction = value;
2584                }
2585
2586                // categories
2587                else if (uri.startsWith("category=", i)) {
2588                    intent.addCategory(value);
2589                }
2590
2591                // type
2592                else if (uri.startsWith("type=", i)) {
2593                    intent.mType = value;
2594                }
2595
2596                // launch  flags
2597                else if (uri.startsWith("launchFlags=", i)) {
2598                    intent.mFlags = Integer.decode(value).intValue();
2599                }
2600
2601                // package
2602                else if (uri.startsWith("package=", i)) {
2603                    intent.mPackage = value;
2604                }
2605
2606                // component
2607                else if (uri.startsWith("component=", i)) {
2608                    intent.mComponent = ComponentName.unflattenFromString(value);
2609                }
2610
2611                // scheme
2612                else if (uri.startsWith("scheme=", i)) {
2613                    scheme = value;
2614                }
2615
2616                // extra
2617                else {
2618                    String key = Uri.decode(uri.substring(i + 2, eq));
2619                    // create Bundle if it doesn't already exist
2620                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2621                    Bundle b = intent.mExtras;
2622                    // add EXTRA
2623                    if      (uri.startsWith("S.", i)) b.putString(key, value);
2624                    else if (uri.startsWith("B.", i)) b.putBoolean(key, Boolean.parseBoolean(value));
2625                    else if (uri.startsWith("b.", i)) b.putByte(key, Byte.parseByte(value));
2626                    else if (uri.startsWith("c.", i)) b.putChar(key, value.charAt(0));
2627                    else if (uri.startsWith("d.", i)) b.putDouble(key, Double.parseDouble(value));
2628                    else if (uri.startsWith("f.", i)) b.putFloat(key, Float.parseFloat(value));
2629                    else if (uri.startsWith("i.", i)) b.putInt(key, Integer.parseInt(value));
2630                    else if (uri.startsWith("l.", i)) b.putLong(key, Long.parseLong(value));
2631                    else if (uri.startsWith("s.", i)) b.putShort(key, Short.parseShort(value));
2632                    else throw new URISyntaxException(uri, "unknown EXTRA type", i);
2633                }
2634
2635                // move to the next item
2636                i = semi + 1;
2637            }
2638
2639            if (data != null) {
2640                if (data.startsWith("intent:")) {
2641                    data = data.substring(7);
2642                    if (scheme != null) {
2643                        data = scheme + ':' + data;
2644                    }
2645                }
2646
2647                if (data.length() > 0) {
2648                    try {
2649                        intent.mData = Uri.parse(data);
2650                    } catch (IllegalArgumentException e) {
2651                        throw new URISyntaxException(uri, e.getMessage());
2652                    }
2653                }
2654            }
2655
2656            return intent;
2657
2658        } catch (IndexOutOfBoundsException e) {
2659            throw new URISyntaxException(uri, "illegal Intent URI format", i);
2660        }
2661    }
2662
2663    public static Intent getIntentOld(String uri) throws URISyntaxException {
2664        Intent intent;
2665
2666        int i = uri.lastIndexOf('#');
2667        if (i >= 0) {
2668            String action = null;
2669            final int intentFragmentStart = i;
2670            boolean isIntentFragment = false;
2671
2672            i++;
2673
2674            if (uri.regionMatches(i, "action(", 0, 7)) {
2675                isIntentFragment = true;
2676                i += 7;
2677                int j = uri.indexOf(')', i);
2678                action = uri.substring(i, j);
2679                i = j + 1;
2680            }
2681
2682            intent = new Intent(action);
2683
2684            if (uri.regionMatches(i, "categories(", 0, 11)) {
2685                isIntentFragment = true;
2686                i += 11;
2687                int j = uri.indexOf(')', i);
2688                while (i < j) {
2689                    int sep = uri.indexOf('!', i);
2690                    if (sep < 0) sep = j;
2691                    if (i < sep) {
2692                        intent.addCategory(uri.substring(i, sep));
2693                    }
2694                    i = sep + 1;
2695                }
2696                i = j + 1;
2697            }
2698
2699            if (uri.regionMatches(i, "type(", 0, 5)) {
2700                isIntentFragment = true;
2701                i += 5;
2702                int j = uri.indexOf(')', i);
2703                intent.mType = uri.substring(i, j);
2704                i = j + 1;
2705            }
2706
2707            if (uri.regionMatches(i, "launchFlags(", 0, 12)) {
2708                isIntentFragment = true;
2709                i += 12;
2710                int j = uri.indexOf(')', i);
2711                intent.mFlags = Integer.decode(uri.substring(i, j)).intValue();
2712                i = j + 1;
2713            }
2714
2715            if (uri.regionMatches(i, "component(", 0, 10)) {
2716                isIntentFragment = true;
2717                i += 10;
2718                int j = uri.indexOf(')', i);
2719                int sep = uri.indexOf('!', i);
2720                if (sep >= 0 && sep < j) {
2721                    String pkg = uri.substring(i, sep);
2722                    String cls = uri.substring(sep + 1, j);
2723                    intent.mComponent = new ComponentName(pkg, cls);
2724                }
2725                i = j + 1;
2726            }
2727
2728            if (uri.regionMatches(i, "extras(", 0, 7)) {
2729                isIntentFragment = true;
2730                i += 7;
2731
2732                final int closeParen = uri.indexOf(')', i);
2733                if (closeParen == -1) throw new URISyntaxException(uri,
2734                        "EXTRA missing trailing ')'", i);
2735
2736                while (i < closeParen) {
2737                    // fetch the key value
2738                    int j = uri.indexOf('=', i);
2739                    if (j <= i + 1 || i >= closeParen) {
2740                        throw new URISyntaxException(uri, "EXTRA missing '='", i);
2741                    }
2742                    char type = uri.charAt(i);
2743                    i++;
2744                    String key = uri.substring(i, j);
2745                    i = j + 1;
2746
2747                    // get type-value
2748                    j = uri.indexOf('!', i);
2749                    if (j == -1 || j >= closeParen) j = closeParen;
2750                    if (i >= j) throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2751                    String value = uri.substring(i, j);
2752                    i = j;
2753
2754                    // create Bundle if it doesn't already exist
2755                    if (intent.mExtras == null) intent.mExtras = new Bundle();
2756
2757                    // add item to bundle
2758                    try {
2759                        switch (type) {
2760                            case 'S':
2761                                intent.mExtras.putString(key, Uri.decode(value));
2762                                break;
2763                            case 'B':
2764                                intent.mExtras.putBoolean(key, Boolean.parseBoolean(value));
2765                                break;
2766                            case 'b':
2767                                intent.mExtras.putByte(key, Byte.parseByte(value));
2768                                break;
2769                            case 'c':
2770                                intent.mExtras.putChar(key, Uri.decode(value).charAt(0));
2771                                break;
2772                            case 'd':
2773                                intent.mExtras.putDouble(key, Double.parseDouble(value));
2774                                break;
2775                            case 'f':
2776                                intent.mExtras.putFloat(key, Float.parseFloat(value));
2777                                break;
2778                            case 'i':
2779                                intent.mExtras.putInt(key, Integer.parseInt(value));
2780                                break;
2781                            case 'l':
2782                                intent.mExtras.putLong(key, Long.parseLong(value));
2783                                break;
2784                            case 's':
2785                                intent.mExtras.putShort(key, Short.parseShort(value));
2786                                break;
2787                            default:
2788                                throw new URISyntaxException(uri, "EXTRA has unknown type", i);
2789                        }
2790                    } catch (NumberFormatException e) {
2791                        throw new URISyntaxException(uri, "EXTRA value can't be parsed", i);
2792                    }
2793
2794                    char ch = uri.charAt(i);
2795                    if (ch == ')') break;
2796                    if (ch != '!') throw new URISyntaxException(uri, "EXTRA missing '!'", i);
2797                    i++;
2798                }
2799            }
2800
2801            if (isIntentFragment) {
2802                intent.mData = Uri.parse(uri.substring(0, intentFragmentStart));
2803            } else {
2804                intent.mData = Uri.parse(uri);
2805            }
2806
2807            if (intent.mAction == null) {
2808                // By default, if no action is specified, then use VIEW.
2809                intent.mAction = ACTION_VIEW;
2810            }
2811
2812        } else {
2813            intent = new Intent(ACTION_VIEW, Uri.parse(uri));
2814        }
2815
2816        return intent;
2817    }
2818
2819    /**
2820     * Retrieve the general action to be performed, such as
2821     * {@link #ACTION_VIEW}.  The action describes the general way the rest of
2822     * the information in the intent should be interpreted -- most importantly,
2823     * what to do with the data returned by {@link #getData}.
2824     *
2825     * @return The action of this intent or null if none is specified.
2826     *
2827     * @see #setAction
2828     */
2829    public String getAction() {
2830        return mAction;
2831    }
2832
2833    /**
2834     * Retrieve data this intent is operating on.  This URI specifies the name
2835     * of the data; often it uses the content: scheme, specifying data in a
2836     * content provider.  Other schemes may be handled by specific activities,
2837     * such as http: by the web browser.
2838     *
2839     * @return The URI of the data this intent is targeting or null.
2840     *
2841     * @see #getScheme
2842     * @see #setData
2843     */
2844    public Uri getData() {
2845        return mData;
2846    }
2847
2848    /**
2849     * The same as {@link #getData()}, but returns the URI as an encoded
2850     * String.
2851     */
2852    public String getDataString() {
2853        return mData != null ? mData.toString() : null;
2854    }
2855
2856    /**
2857     * Return the scheme portion of the intent's data.  If the data is null or
2858     * does not include a scheme, null is returned.  Otherwise, the scheme
2859     * prefix without the final ':' is returned, i.e. "http".
2860     *
2861     * <p>This is the same as calling getData().getScheme() (and checking for
2862     * null data).
2863     *
2864     * @return The scheme of this intent.
2865     *
2866     * @see #getData
2867     */
2868    public String getScheme() {
2869        return mData != null ? mData.getScheme() : null;
2870    }
2871
2872    /**
2873     * Retrieve any explicit MIME type included in the intent.  This is usually
2874     * null, as the type is determined by the intent data.
2875     *
2876     * @return If a type was manually set, it is returned; else null is
2877     *         returned.
2878     *
2879     * @see #resolveType(ContentResolver)
2880     * @see #setType
2881     */
2882    public String getType() {
2883        return mType;
2884    }
2885
2886    /**
2887     * Return the MIME data type of this intent.  If the type field is
2888     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2889     * the type of that data is returned.  If neither fields are set, a null is
2890     * returned.
2891     *
2892     * @return The MIME type of this intent.
2893     *
2894     * @see #getType
2895     * @see #resolveType(ContentResolver)
2896     */
2897    public String resolveType(Context context) {
2898        return resolveType(context.getContentResolver());
2899    }
2900
2901    /**
2902     * Return the MIME data type of this intent.  If the type field is
2903     * explicitly set, that is simply returned.  Otherwise, if the data is set,
2904     * the type of that data is returned.  If neither fields are set, a null is
2905     * returned.
2906     *
2907     * @param resolver A ContentResolver that can be used to determine the MIME
2908     *                 type of the intent's data.
2909     *
2910     * @return The MIME type of this intent.
2911     *
2912     * @see #getType
2913     * @see #resolveType(Context)
2914     */
2915    public String resolveType(ContentResolver resolver) {
2916        if (mType != null) {
2917            return mType;
2918        }
2919        if (mData != null) {
2920            if ("content".equals(mData.getScheme())) {
2921                return resolver.getType(mData);
2922            }
2923        }
2924        return null;
2925    }
2926
2927    /**
2928     * Return the MIME data type of this intent, only if it will be needed for
2929     * intent resolution.  This is not generally useful for application code;
2930     * it is used by the frameworks for communicating with back-end system
2931     * services.
2932     *
2933     * @param resolver A ContentResolver that can be used to determine the MIME
2934     *                 type of the intent's data.
2935     *
2936     * @return The MIME type of this intent, or null if it is unknown or not
2937     *         needed.
2938     */
2939    public String resolveTypeIfNeeded(ContentResolver resolver) {
2940        if (mComponent != null) {
2941            return mType;
2942        }
2943        return resolveType(resolver);
2944    }
2945
2946    /**
2947     * Check if an category exists in the intent.
2948     *
2949     * @param category The category to check.
2950     *
2951     * @return boolean True if the intent contains the category, else false.
2952     *
2953     * @see #getCategories
2954     * @see #addCategory
2955     */
2956    public boolean hasCategory(String category) {
2957        return mCategories != null && mCategories.contains(category);
2958    }
2959
2960    /**
2961     * Return the set of all categories in the intent.  If there are no categories,
2962     * returns NULL.
2963     *
2964     * @return Set The set of categories you can examine.  Do not modify!
2965     *
2966     * @see #hasCategory
2967     * @see #addCategory
2968     */
2969    public Set<String> getCategories() {
2970        return mCategories;
2971    }
2972
2973    /**
2974     * Sets the ClassLoader that will be used when unmarshalling
2975     * any Parcelable values from the extras of this Intent.
2976     *
2977     * @param loader a ClassLoader, or null to use the default loader
2978     * at the time of unmarshalling.
2979     */
2980    public void setExtrasClassLoader(ClassLoader loader) {
2981        if (mExtras != null) {
2982            mExtras.setClassLoader(loader);
2983        }
2984    }
2985
2986    /**
2987     * Returns true if an extra value is associated with the given name.
2988     * @param name the extra's name
2989     * @return true if the given extra is present.
2990     */
2991    public boolean hasExtra(String name) {
2992        return mExtras != null && mExtras.containsKey(name);
2993    }
2994
2995    /**
2996     * Returns true if the Intent's extras contain a parcelled file descriptor.
2997     * @return true if the Intent contains a parcelled file descriptor.
2998     */
2999    public boolean hasFileDescriptors() {
3000        return mExtras != null && mExtras.hasFileDescriptors();
3001    }
3002
3003    /**
3004     * Retrieve extended data from the intent.
3005     *
3006     * @param name The name of the desired item.
3007     *
3008     * @return the value of an item that previously added with putExtra()
3009     * or null if none was found.
3010     *
3011     * @deprecated
3012     * @hide
3013     */
3014    @Deprecated
3015    public Object getExtra(String name) {
3016        return getExtra(name, null);
3017    }
3018
3019    /**
3020     * Retrieve extended data from the intent.
3021     *
3022     * @param name The name of the desired item.
3023     * @param defaultValue the value to be returned if no value of the desired
3024     * type is stored with the given name.
3025     *
3026     * @return the value of an item that previously added with putExtra()
3027     * or the default value if none was found.
3028     *
3029     * @see #putExtra(String, boolean)
3030     */
3031    public boolean getBooleanExtra(String name, boolean defaultValue) {
3032        return mExtras == null ? defaultValue :
3033            mExtras.getBoolean(name, defaultValue);
3034    }
3035
3036    /**
3037     * Retrieve extended data from the intent.
3038     *
3039     * @param name The name of the desired item.
3040     * @param defaultValue the value to be returned if no value of the desired
3041     * type is stored with the given name.
3042     *
3043     * @return the value of an item that previously added with putExtra()
3044     * or the default value if none was found.
3045     *
3046     * @see #putExtra(String, byte)
3047     */
3048    public byte getByteExtra(String name, byte defaultValue) {
3049        return mExtras == null ? defaultValue :
3050            mExtras.getByte(name, defaultValue);
3051    }
3052
3053    /**
3054     * Retrieve extended data from the intent.
3055     *
3056     * @param name The name of the desired item.
3057     * @param defaultValue the value to be returned if no value of the desired
3058     * type is stored with the given name.
3059     *
3060     * @return the value of an item that previously added with putExtra()
3061     * or the default value if none was found.
3062     *
3063     * @see #putExtra(String, short)
3064     */
3065    public short getShortExtra(String name, short defaultValue) {
3066        return mExtras == null ? defaultValue :
3067            mExtras.getShort(name, defaultValue);
3068    }
3069
3070    /**
3071     * Retrieve extended data from the intent.
3072     *
3073     * @param name The name of the desired item.
3074     * @param defaultValue the value to be returned if no value of the desired
3075     * type is stored with the given name.
3076     *
3077     * @return the value of an item that previously added with putExtra()
3078     * or the default value if none was found.
3079     *
3080     * @see #putExtra(String, char)
3081     */
3082    public char getCharExtra(String name, char defaultValue) {
3083        return mExtras == null ? defaultValue :
3084            mExtras.getChar(name, defaultValue);
3085    }
3086
3087    /**
3088     * Retrieve extended data from the intent.
3089     *
3090     * @param name The name of the desired item.
3091     * @param defaultValue the value to be returned if no value of the desired
3092     * type is stored with the given name.
3093     *
3094     * @return the value of an item that previously added with putExtra()
3095     * or the default value if none was found.
3096     *
3097     * @see #putExtra(String, int)
3098     */
3099    public int getIntExtra(String name, int defaultValue) {
3100        return mExtras == null ? defaultValue :
3101            mExtras.getInt(name, defaultValue);
3102    }
3103
3104    /**
3105     * Retrieve extended data from the intent.
3106     *
3107     * @param name The name of the desired item.
3108     * @param defaultValue the value to be returned if no value of the desired
3109     * type is stored with the given name.
3110     *
3111     * @return the value of an item that previously added with putExtra()
3112     * or the default value if none was found.
3113     *
3114     * @see #putExtra(String, long)
3115     */
3116    public long getLongExtra(String name, long defaultValue) {
3117        return mExtras == null ? defaultValue :
3118            mExtras.getLong(name, defaultValue);
3119    }
3120
3121    /**
3122     * Retrieve extended data from the intent.
3123     *
3124     * @param name The name of the desired item.
3125     * @param defaultValue the value to be returned if no value of the desired
3126     * type is stored with the given name.
3127     *
3128     * @return the value of an item that previously added with putExtra(),
3129     * or the default value if no such item is present
3130     *
3131     * @see #putExtra(String, float)
3132     */
3133    public float getFloatExtra(String name, float defaultValue) {
3134        return mExtras == null ? defaultValue :
3135            mExtras.getFloat(name, defaultValue);
3136    }
3137
3138    /**
3139     * Retrieve extended data from the intent.
3140     *
3141     * @param name The name of the desired item.
3142     * @param defaultValue the value to be returned if no value of the desired
3143     * type is stored with the given name.
3144     *
3145     * @return the value of an item that previously added with putExtra()
3146     * or the default value if none was found.
3147     *
3148     * @see #putExtra(String, double)
3149     */
3150    public double getDoubleExtra(String name, double defaultValue) {
3151        return mExtras == null ? defaultValue :
3152            mExtras.getDouble(name, defaultValue);
3153    }
3154
3155    /**
3156     * Retrieve extended data from the intent.
3157     *
3158     * @param name The name of the desired item.
3159     *
3160     * @return the value of an item that previously added with putExtra()
3161     * or null if no String value was found.
3162     *
3163     * @see #putExtra(String, String)
3164     */
3165    public String getStringExtra(String name) {
3166        return mExtras == null ? null : mExtras.getString(name);
3167    }
3168
3169    /**
3170     * Retrieve extended data from the intent.
3171     *
3172     * @param name The name of the desired item.
3173     *
3174     * @return the value of an item that previously added with putExtra()
3175     * or null if no CharSequence value was found.
3176     *
3177     * @see #putExtra(String, CharSequence)
3178     */
3179    public CharSequence getCharSequenceExtra(String name) {
3180        return mExtras == null ? null : mExtras.getCharSequence(name);
3181    }
3182
3183    /**
3184     * Retrieve extended data from the intent.
3185     *
3186     * @param name The name of the desired item.
3187     *
3188     * @return the value of an item that previously added with putExtra()
3189     * or null if no Parcelable value was found.
3190     *
3191     * @see #putExtra(String, Parcelable)
3192     */
3193    public <T extends Parcelable> T getParcelableExtra(String name) {
3194        return mExtras == null ? null : mExtras.<T>getParcelable(name);
3195    }
3196
3197    /**
3198     * Retrieve extended data from the intent.
3199     *
3200     * @param name The name of the desired item.
3201     *
3202     * @return the value of an item that previously added with putExtra()
3203     * or null if no Parcelable[] value was found.
3204     *
3205     * @see #putExtra(String, Parcelable[])
3206     */
3207    public Parcelable[] getParcelableArrayExtra(String name) {
3208        return mExtras == null ? null : mExtras.getParcelableArray(name);
3209    }
3210
3211    /**
3212     * Retrieve extended data from the intent.
3213     *
3214     * @param name The name of the desired item.
3215     *
3216     * @return the value of an item that previously added with putExtra()
3217     * or null if no ArrayList<Parcelable> value was found.
3218     *
3219     * @see #putParcelableArrayListExtra(String, ArrayList)
3220     */
3221    public <T extends Parcelable> ArrayList<T> getParcelableArrayListExtra(String name) {
3222        return mExtras == null ? null : mExtras.<T>getParcelableArrayList(name);
3223    }
3224
3225    /**
3226     * Retrieve extended data from the intent.
3227     *
3228     * @param name The name of the desired item.
3229     *
3230     * @return the value of an item that previously added with putExtra()
3231     * or null if no Serializable value was found.
3232     *
3233     * @see #putExtra(String, Serializable)
3234     */
3235    public Serializable getSerializableExtra(String name) {
3236        return mExtras == null ? null : mExtras.getSerializable(name);
3237    }
3238
3239    /**
3240     * Retrieve extended data from the intent.
3241     *
3242     * @param name The name of the desired item.
3243     *
3244     * @return the value of an item that previously added with putExtra()
3245     * or null if no ArrayList<Integer> value was found.
3246     *
3247     * @see #putIntegerArrayListExtra(String, ArrayList)
3248     */
3249    public ArrayList<Integer> getIntegerArrayListExtra(String name) {
3250        return mExtras == null ? null : mExtras.getIntegerArrayList(name);
3251    }
3252
3253    /**
3254     * Retrieve extended data from the intent.
3255     *
3256     * @param name The name of the desired item.
3257     *
3258     * @return the value of an item that previously added with putExtra()
3259     * or null if no ArrayList<String> value was found.
3260     *
3261     * @see #putStringArrayListExtra(String, ArrayList)
3262     */
3263    public ArrayList<String> getStringArrayListExtra(String name) {
3264        return mExtras == null ? null : mExtras.getStringArrayList(name);
3265    }
3266
3267    /**
3268     * Retrieve extended data from the intent.
3269     *
3270     * @param name The name of the desired item.
3271     *
3272     * @return the value of an item that previously added with putExtra()
3273     * or null if no boolean array value was found.
3274     *
3275     * @see #putExtra(String, boolean[])
3276     */
3277    public boolean[] getBooleanArrayExtra(String name) {
3278        return mExtras == null ? null : mExtras.getBooleanArray(name);
3279    }
3280
3281    /**
3282     * Retrieve extended data from the intent.
3283     *
3284     * @param name The name of the desired item.
3285     *
3286     * @return the value of an item that previously added with putExtra()
3287     * or null if no byte array value was found.
3288     *
3289     * @see #putExtra(String, byte[])
3290     */
3291    public byte[] getByteArrayExtra(String name) {
3292        return mExtras == null ? null : mExtras.getByteArray(name);
3293    }
3294
3295    /**
3296     * Retrieve extended data from the intent.
3297     *
3298     * @param name The name of the desired item.
3299     *
3300     * @return the value of an item that previously added with putExtra()
3301     * or null if no short array value was found.
3302     *
3303     * @see #putExtra(String, short[])
3304     */
3305    public short[] getShortArrayExtra(String name) {
3306        return mExtras == null ? null : mExtras.getShortArray(name);
3307    }
3308
3309    /**
3310     * Retrieve extended data from the intent.
3311     *
3312     * @param name The name of the desired item.
3313     *
3314     * @return the value of an item that previously added with putExtra()
3315     * or null if no char array value was found.
3316     *
3317     * @see #putExtra(String, char[])
3318     */
3319    public char[] getCharArrayExtra(String name) {
3320        return mExtras == null ? null : mExtras.getCharArray(name);
3321    }
3322
3323    /**
3324     * Retrieve extended data from the intent.
3325     *
3326     * @param name The name of the desired item.
3327     *
3328     * @return the value of an item that previously added with putExtra()
3329     * or null if no int array value was found.
3330     *
3331     * @see #putExtra(String, int[])
3332     */
3333    public int[] getIntArrayExtra(String name) {
3334        return mExtras == null ? null : mExtras.getIntArray(name);
3335    }
3336
3337    /**
3338     * Retrieve extended data from the intent.
3339     *
3340     * @param name The name of the desired item.
3341     *
3342     * @return the value of an item that previously added with putExtra()
3343     * or null if no long array value was found.
3344     *
3345     * @see #putExtra(String, long[])
3346     */
3347    public long[] getLongArrayExtra(String name) {
3348        return mExtras == null ? null : mExtras.getLongArray(name);
3349    }
3350
3351    /**
3352     * Retrieve extended data from the intent.
3353     *
3354     * @param name The name of the desired item.
3355     *
3356     * @return the value of an item that previously added with putExtra()
3357     * or null if no float array value was found.
3358     *
3359     * @see #putExtra(String, float[])
3360     */
3361    public float[] getFloatArrayExtra(String name) {
3362        return mExtras == null ? null : mExtras.getFloatArray(name);
3363    }
3364
3365    /**
3366     * Retrieve extended data from the intent.
3367     *
3368     * @param name The name of the desired item.
3369     *
3370     * @return the value of an item that previously added with putExtra()
3371     * or null if no double array value was found.
3372     *
3373     * @see #putExtra(String, double[])
3374     */
3375    public double[] getDoubleArrayExtra(String name) {
3376        return mExtras == null ? null : mExtras.getDoubleArray(name);
3377    }
3378
3379    /**
3380     * Retrieve extended data from the intent.
3381     *
3382     * @param name The name of the desired item.
3383     *
3384     * @return the value of an item that previously added with putExtra()
3385     * or null if no String array value was found.
3386     *
3387     * @see #putExtra(String, String[])
3388     */
3389    public String[] getStringArrayExtra(String name) {
3390        return mExtras == null ? null : mExtras.getStringArray(name);
3391    }
3392
3393    /**
3394     * Retrieve extended data from the intent.
3395     *
3396     * @param name The name of the desired item.
3397     *
3398     * @return the value of an item that previously added with putExtra()
3399     * or null if no Bundle value was found.
3400     *
3401     * @see #putExtra(String, Bundle)
3402     */
3403    public Bundle getBundleExtra(String name) {
3404        return mExtras == null ? null : mExtras.getBundle(name);
3405    }
3406
3407    /**
3408     * Retrieve extended data from the intent.
3409     *
3410     * @param name The name of the desired item.
3411     *
3412     * @return the value of an item that previously added with putExtra()
3413     * or null if no IBinder value was found.
3414     *
3415     * @see #putExtra(String, IBinder)
3416     *
3417     * @deprecated
3418     * @hide
3419     */
3420    @Deprecated
3421    public IBinder getIBinderExtra(String name) {
3422        return mExtras == null ? null : mExtras.getIBinder(name);
3423    }
3424
3425    /**
3426     * Retrieve extended data from the intent.
3427     *
3428     * @param name The name of the desired item.
3429     * @param defaultValue The default value to return in case no item is
3430     * associated with the key 'name'
3431     *
3432     * @return the value of an item that previously added with putExtra()
3433     * or defaultValue if none was found.
3434     *
3435     * @see #putExtra
3436     *
3437     * @deprecated
3438     * @hide
3439     */
3440    @Deprecated
3441    public Object getExtra(String name, Object defaultValue) {
3442        Object result = defaultValue;
3443        if (mExtras != null) {
3444            Object result2 = mExtras.get(name);
3445            if (result2 != null) {
3446                result = result2;
3447            }
3448        }
3449
3450        return result;
3451    }
3452
3453    /**
3454     * Retrieves a map of extended data from the intent.
3455     *
3456     * @return the map of all extras previously added with putExtra(),
3457     * or null if none have been added.
3458     */
3459    public Bundle getExtras() {
3460        return (mExtras != null)
3461                ? new Bundle(mExtras)
3462                : null;
3463    }
3464
3465    /**
3466     * Retrieve any special flags associated with this intent.  You will
3467     * normally just set them with {@link #setFlags} and let the system
3468     * take the appropriate action with them.
3469     *
3470     * @return int The currently set flags.
3471     *
3472     * @see #setFlags
3473     */
3474    public int getFlags() {
3475        return mFlags;
3476    }
3477
3478    /**
3479     * Retrieve the application package name this Intent is limited to.  When
3480     * resolving an Intent, if non-null this limits the resolution to only
3481     * components in the given application package.
3482     *
3483     * @return The name of the application package for the Intent.
3484     *
3485     * @see #resolveActivity
3486     * @see #setPackage
3487     */
3488    public String getPackage() {
3489        return mPackage;
3490    }
3491
3492    /**
3493     * Retrieve the concrete component associated with the intent.  When receiving
3494     * an intent, this is the component that was found to best handle it (that is,
3495     * yourself) and will always be non-null; in all other cases it will be
3496     * null unless explicitly set.
3497     *
3498     * @return The name of the application component to handle the intent.
3499     *
3500     * @see #resolveActivity
3501     * @see #setComponent
3502     */
3503    public ComponentName getComponent() {
3504        return mComponent;
3505    }
3506
3507    /**
3508     * Return the Activity component that should be used to handle this intent.
3509     * The appropriate component is determined based on the information in the
3510     * intent, evaluated as follows:
3511     *
3512     * <p>If {@link #getComponent} returns an explicit class, that is returned
3513     * without any further consideration.
3514     *
3515     * <p>The activity must handle the {@link Intent#CATEGORY_DEFAULT} Intent
3516     * category to be considered.
3517     *
3518     * <p>If {@link #getAction} is non-NULL, the activity must handle this
3519     * action.
3520     *
3521     * <p>If {@link #resolveType} returns non-NULL, the activity must handle
3522     * this type.
3523     *
3524     * <p>If {@link #addCategory} has added any categories, the activity must
3525     * handle ALL of the categories specified.
3526     *
3527     * <p>If {@link #getPackage} is non-NULL, only activity components in
3528     * that application package will be considered.
3529     *
3530     * <p>If there are no activities that satisfy all of these conditions, a
3531     * null string is returned.
3532     *
3533     * <p>If multiple activities are found to satisfy the intent, the one with
3534     * the highest priority will be used.  If there are multiple activities
3535     * with the same priority, the system will either pick the best activity
3536     * based on user preference, or resolve to a system class that will allow
3537     * the user to pick an activity and forward from there.
3538     *
3539     * <p>This method is implemented simply by calling
3540     * {@link PackageManager#resolveActivity} with the "defaultOnly" parameter
3541     * true.</p>
3542     * <p> This API is called for you as part of starting an activity from an
3543     * intent.  You do not normally need to call it yourself.</p>
3544     *
3545     * @param pm The package manager with which to resolve the Intent.
3546     *
3547     * @return Name of the component implementing an activity that can
3548     *         display the intent.
3549     *
3550     * @see #setComponent
3551     * @see #getComponent
3552     * @see #resolveActivityInfo
3553     */
3554    public ComponentName resolveActivity(PackageManager pm) {
3555        if (mComponent != null) {
3556            return mComponent;
3557        }
3558
3559        ResolveInfo info = pm.resolveActivity(
3560            this, PackageManager.MATCH_DEFAULT_ONLY);
3561        if (info != null) {
3562            return new ComponentName(
3563                    info.activityInfo.applicationInfo.packageName,
3564                    info.activityInfo.name);
3565        }
3566
3567        return null;
3568    }
3569
3570    /**
3571     * Resolve the Intent into an {@link ActivityInfo}
3572     * describing the activity that should execute the intent.  Resolution
3573     * follows the same rules as described for {@link #resolveActivity}, but
3574     * you get back the completely information about the resolved activity
3575     * instead of just its class name.
3576     *
3577     * @param pm The package manager with which to resolve the Intent.
3578     * @param flags Addition information to retrieve as per
3579     * {@link PackageManager#getActivityInfo(ComponentName, int)
3580     * PackageManager.getActivityInfo()}.
3581     *
3582     * @return PackageManager.ActivityInfo
3583     *
3584     * @see #resolveActivity
3585     */
3586    public ActivityInfo resolveActivityInfo(PackageManager pm, int flags) {
3587        ActivityInfo ai = null;
3588        if (mComponent != null) {
3589            try {
3590                ai = pm.getActivityInfo(mComponent, flags);
3591            } catch (PackageManager.NameNotFoundException e) {
3592                // ignore
3593            }
3594        } else {
3595            ResolveInfo info = pm.resolveActivity(
3596                this, PackageManager.MATCH_DEFAULT_ONLY);
3597            if (info != null) {
3598                ai = info.activityInfo;
3599            }
3600        }
3601
3602        return ai;
3603    }
3604
3605    /**
3606     * Set the general action to be performed.
3607     *
3608     * @param action An action name, such as ACTION_VIEW.  Application-specific
3609     *               actions should be prefixed with the vendor's package name.
3610     *
3611     * @return Returns the same Intent object, for chaining multiple calls
3612     * into a single statement.
3613     *
3614     * @see #getAction
3615     */
3616    public Intent setAction(String action) {
3617        mAction = action;
3618        return this;
3619    }
3620
3621    /**
3622     * Set the data this intent is operating on.  This method automatically
3623     * clears any type that was previously set by {@link #setType}.
3624     *
3625     * <p><em>Note: scheme and host name matching in the Android framework is
3626     * case-sensitive, unlike the formal RFC.  As a result,
3627     * you should always ensure that you write your Uri with these elements
3628     * using lower case letters, and normalize any Uris you receive from
3629     * outside of Android to ensure the scheme and host is lower case.</em></p>
3630     *
3631     * @param data The URI of the data this intent is now targeting.
3632     *
3633     * @return Returns the same Intent object, for chaining multiple calls
3634     * into a single statement.
3635     *
3636     * @see #getData
3637     * @see #setType
3638     * @see #setDataAndType
3639     */
3640    public Intent setData(Uri data) {
3641        mData = data;
3642        mType = null;
3643        return this;
3644    }
3645
3646    /**
3647     * Set an explicit MIME data type.  This is used to create intents that
3648     * only specify a type and not data, for example to indicate the type of
3649     * data to return.  This method automatically clears any data that was
3650     * previously set by {@link #setData}.
3651     *
3652     * <p><em>Note: MIME type matching in the Android framework is
3653     * case-sensitive, unlike formal RFC MIME types.  As a result,
3654     * you should always write your MIME types with lower case letters,
3655     * and any MIME types you receive from outside of Android should be
3656     * converted to lower case before supplying them here.</em></p>
3657     *
3658     * @param type The MIME type of the data being handled by this intent.
3659     *
3660     * @return Returns the same Intent object, for chaining multiple calls
3661     * into a single statement.
3662     *
3663     * @see #getType
3664     * @see #setData
3665     * @see #setDataAndType
3666     */
3667    public Intent setType(String type) {
3668        mData = null;
3669        mType = type;
3670        return this;
3671    }
3672
3673    /**
3674     * (Usually optional) Set the data for the intent along with an explicit
3675     * MIME data type.  This method should very rarely be used -- it allows you
3676     * to override the MIME type that would ordinarily be inferred from the
3677     * data with your own type given here.
3678     *
3679     * <p><em>Note: MIME type, Uri scheme, and host name matching in the
3680     * Android framework is case-sensitive, unlike the formal RFC definitions.
3681     * As a result, you should always write these elements with lower case letters,
3682     * and normalize any MIME types or Uris you receive from
3683     * outside of Android to ensure these elements are lower case before
3684     * supplying them here.</em></p>
3685     *
3686     * @param data The URI of the data this intent is now targeting.
3687     * @param type The MIME type of the data being handled by this intent.
3688     *
3689     * @return Returns the same Intent object, for chaining multiple calls
3690     * into a single statement.
3691     *
3692     * @see #setData
3693     * @see #setType
3694     */
3695    public Intent setDataAndType(Uri data, String type) {
3696        mData = data;
3697        mType = type;
3698        return this;
3699    }
3700
3701    /**
3702     * Add a new category to the intent.  Categories provide additional detail
3703     * about the action the intent is perform.  When resolving an intent, only
3704     * activities that provide <em>all</em> of the requested categories will be
3705     * used.
3706     *
3707     * @param category The desired category.  This can be either one of the
3708     *               predefined Intent categories, or a custom category in your own
3709     *               namespace.
3710     *
3711     * @return Returns the same Intent object, for chaining multiple calls
3712     * into a single statement.
3713     *
3714     * @see #hasCategory
3715     * @see #removeCategory
3716     */
3717    public Intent addCategory(String category) {
3718        if (mCategories == null) {
3719            mCategories = new HashSet<String>();
3720        }
3721        mCategories.add(category);
3722        return this;
3723    }
3724
3725    /**
3726     * Remove an category from an intent.
3727     *
3728     * @param category The category to remove.
3729     *
3730     * @see #addCategory
3731     */
3732    public void removeCategory(String category) {
3733        if (mCategories != null) {
3734            mCategories.remove(category);
3735            if (mCategories.size() == 0) {
3736                mCategories = null;
3737            }
3738        }
3739    }
3740
3741    /**
3742     * Add extended data to the intent.  The name must include a package
3743     * prefix, for example the app com.android.contacts would use names
3744     * like "com.android.contacts.ShowAll".
3745     *
3746     * @param name The name of the extra data, with package prefix.
3747     * @param value The boolean data value.
3748     *
3749     * @return Returns the same Intent object, for chaining multiple calls
3750     * into a single statement.
3751     *
3752     * @see #putExtras
3753     * @see #removeExtra
3754     * @see #getBooleanExtra(String, boolean)
3755     */
3756    public Intent putExtra(String name, boolean value) {
3757        if (mExtras == null) {
3758            mExtras = new Bundle();
3759        }
3760        mExtras.putBoolean(name, value);
3761        return this;
3762    }
3763
3764    /**
3765     * Add extended data to the intent.  The name must include a package
3766     * prefix, for example the app com.android.contacts would use names
3767     * like "com.android.contacts.ShowAll".
3768     *
3769     * @param name The name of the extra data, with package prefix.
3770     * @param value The byte data value.
3771     *
3772     * @return Returns the same Intent object, for chaining multiple calls
3773     * into a single statement.
3774     *
3775     * @see #putExtras
3776     * @see #removeExtra
3777     * @see #getByteExtra(String, byte)
3778     */
3779    public Intent putExtra(String name, byte value) {
3780        if (mExtras == null) {
3781            mExtras = new Bundle();
3782        }
3783        mExtras.putByte(name, value);
3784        return this;
3785    }
3786
3787    /**
3788     * Add extended data to the intent.  The name must include a package
3789     * prefix, for example the app com.android.contacts would use names
3790     * like "com.android.contacts.ShowAll".
3791     *
3792     * @param name The name of the extra data, with package prefix.
3793     * @param value The char data value.
3794     *
3795     * @return Returns the same Intent object, for chaining multiple calls
3796     * into a single statement.
3797     *
3798     * @see #putExtras
3799     * @see #removeExtra
3800     * @see #getCharExtra(String, char)
3801     */
3802    public Intent putExtra(String name, char value) {
3803        if (mExtras == null) {
3804            mExtras = new Bundle();
3805        }
3806        mExtras.putChar(name, value);
3807        return this;
3808    }
3809
3810    /**
3811     * Add extended data to the intent.  The name must include a package
3812     * prefix, for example the app com.android.contacts would use names
3813     * like "com.android.contacts.ShowAll".
3814     *
3815     * @param name The name of the extra data, with package prefix.
3816     * @param value The short data value.
3817     *
3818     * @return Returns the same Intent object, for chaining multiple calls
3819     * into a single statement.
3820     *
3821     * @see #putExtras
3822     * @see #removeExtra
3823     * @see #getShortExtra(String, short)
3824     */
3825    public Intent putExtra(String name, short value) {
3826        if (mExtras == null) {
3827            mExtras = new Bundle();
3828        }
3829        mExtras.putShort(name, value);
3830        return this;
3831    }
3832
3833    /**
3834     * Add extended data to the intent.  The name must include a package
3835     * prefix, for example the app com.android.contacts would use names
3836     * like "com.android.contacts.ShowAll".
3837     *
3838     * @param name The name of the extra data, with package prefix.
3839     * @param value The integer data value.
3840     *
3841     * @return Returns the same Intent object, for chaining multiple calls
3842     * into a single statement.
3843     *
3844     * @see #putExtras
3845     * @see #removeExtra
3846     * @see #getIntExtra(String, int)
3847     */
3848    public Intent putExtra(String name, int value) {
3849        if (mExtras == null) {
3850            mExtras = new Bundle();
3851        }
3852        mExtras.putInt(name, value);
3853        return this;
3854    }
3855
3856    /**
3857     * Add extended data to the intent.  The name must include a package
3858     * prefix, for example the app com.android.contacts would use names
3859     * like "com.android.contacts.ShowAll".
3860     *
3861     * @param name The name of the extra data, with package prefix.
3862     * @param value The long data value.
3863     *
3864     * @return Returns the same Intent object, for chaining multiple calls
3865     * into a single statement.
3866     *
3867     * @see #putExtras
3868     * @see #removeExtra
3869     * @see #getLongExtra(String, long)
3870     */
3871    public Intent putExtra(String name, long value) {
3872        if (mExtras == null) {
3873            mExtras = new Bundle();
3874        }
3875        mExtras.putLong(name, value);
3876        return this;
3877    }
3878
3879    /**
3880     * Add extended data to the intent.  The name must include a package
3881     * prefix, for example the app com.android.contacts would use names
3882     * like "com.android.contacts.ShowAll".
3883     *
3884     * @param name The name of the extra data, with package prefix.
3885     * @param value The float data value.
3886     *
3887     * @return Returns the same Intent object, for chaining multiple calls
3888     * into a single statement.
3889     *
3890     * @see #putExtras
3891     * @see #removeExtra
3892     * @see #getFloatExtra(String, float)
3893     */
3894    public Intent putExtra(String name, float value) {
3895        if (mExtras == null) {
3896            mExtras = new Bundle();
3897        }
3898        mExtras.putFloat(name, value);
3899        return this;
3900    }
3901
3902    /**
3903     * Add extended data to the intent.  The name must include a package
3904     * prefix, for example the app com.android.contacts would use names
3905     * like "com.android.contacts.ShowAll".
3906     *
3907     * @param name The name of the extra data, with package prefix.
3908     * @param value The double data value.
3909     *
3910     * @return Returns the same Intent object, for chaining multiple calls
3911     * into a single statement.
3912     *
3913     * @see #putExtras
3914     * @see #removeExtra
3915     * @see #getDoubleExtra(String, double)
3916     */
3917    public Intent putExtra(String name, double value) {
3918        if (mExtras == null) {
3919            mExtras = new Bundle();
3920        }
3921        mExtras.putDouble(name, value);
3922        return this;
3923    }
3924
3925    /**
3926     * Add extended data to the intent.  The name must include a package
3927     * prefix, for example the app com.android.contacts would use names
3928     * like "com.android.contacts.ShowAll".
3929     *
3930     * @param name The name of the extra data, with package prefix.
3931     * @param value The String data value.
3932     *
3933     * @return Returns the same Intent object, for chaining multiple calls
3934     * into a single statement.
3935     *
3936     * @see #putExtras
3937     * @see #removeExtra
3938     * @see #getStringExtra(String)
3939     */
3940    public Intent putExtra(String name, String value) {
3941        if (mExtras == null) {
3942            mExtras = new Bundle();
3943        }
3944        mExtras.putString(name, value);
3945        return this;
3946    }
3947
3948    /**
3949     * Add extended data to the intent.  The name must include a package
3950     * prefix, for example the app com.android.contacts would use names
3951     * like "com.android.contacts.ShowAll".
3952     *
3953     * @param name The name of the extra data, with package prefix.
3954     * @param value The CharSequence data value.
3955     *
3956     * @return Returns the same Intent object, for chaining multiple calls
3957     * into a single statement.
3958     *
3959     * @see #putExtras
3960     * @see #removeExtra
3961     * @see #getCharSequenceExtra(String)
3962     */
3963    public Intent putExtra(String name, CharSequence value) {
3964        if (mExtras == null) {
3965            mExtras = new Bundle();
3966        }
3967        mExtras.putCharSequence(name, value);
3968        return this;
3969    }
3970
3971    /**
3972     * Add extended data to the intent.  The name must include a package
3973     * prefix, for example the app com.android.contacts would use names
3974     * like "com.android.contacts.ShowAll".
3975     *
3976     * @param name The name of the extra data, with package prefix.
3977     * @param value The Parcelable data value.
3978     *
3979     * @return Returns the same Intent object, for chaining multiple calls
3980     * into a single statement.
3981     *
3982     * @see #putExtras
3983     * @see #removeExtra
3984     * @see #getParcelableExtra(String)
3985     */
3986    public Intent putExtra(String name, Parcelable value) {
3987        if (mExtras == null) {
3988            mExtras = new Bundle();
3989        }
3990        mExtras.putParcelable(name, value);
3991        return this;
3992    }
3993
3994    /**
3995     * Add extended data to the intent.  The name must include a package
3996     * prefix, for example the app com.android.contacts would use names
3997     * like "com.android.contacts.ShowAll".
3998     *
3999     * @param name The name of the extra data, with package prefix.
4000     * @param value The Parcelable[] data value.
4001     *
4002     * @return Returns the same Intent object, for chaining multiple calls
4003     * into a single statement.
4004     *
4005     * @see #putExtras
4006     * @see #removeExtra
4007     * @see #getParcelableArrayExtra(String)
4008     */
4009    public Intent putExtra(String name, Parcelable[] value) {
4010        if (mExtras == null) {
4011            mExtras = new Bundle();
4012        }
4013        mExtras.putParcelableArray(name, value);
4014        return this;
4015    }
4016
4017    /**
4018     * Add extended data to the intent.  The name must include a package
4019     * prefix, for example the app com.android.contacts would use names
4020     * like "com.android.contacts.ShowAll".
4021     *
4022     * @param name The name of the extra data, with package prefix.
4023     * @param value The ArrayList<Parcelable> data value.
4024     *
4025     * @return Returns the same Intent object, for chaining multiple calls
4026     * into a single statement.
4027     *
4028     * @see #putExtras
4029     * @see #removeExtra
4030     * @see #getParcelableArrayListExtra(String)
4031     */
4032    public Intent putParcelableArrayListExtra(String name, ArrayList<? extends Parcelable> value) {
4033        if (mExtras == null) {
4034            mExtras = new Bundle();
4035        }
4036        mExtras.putParcelableArrayList(name, value);
4037        return this;
4038    }
4039
4040    /**
4041     * Add extended data to the intent.  The name must include a package
4042     * prefix, for example the app com.android.contacts would use names
4043     * like "com.android.contacts.ShowAll".
4044     *
4045     * @param name The name of the extra data, with package prefix.
4046     * @param value The ArrayList<Integer> data value.
4047     *
4048     * @return Returns the same Intent object, for chaining multiple calls
4049     * into a single statement.
4050     *
4051     * @see #putExtras
4052     * @see #removeExtra
4053     * @see #getIntegerArrayListExtra(String)
4054     */
4055    public Intent putIntegerArrayListExtra(String name, ArrayList<Integer> value) {
4056        if (mExtras == null) {
4057            mExtras = new Bundle();
4058        }
4059        mExtras.putIntegerArrayList(name, value);
4060        return this;
4061    }
4062
4063    /**
4064     * Add extended data to the intent.  The name must include a package
4065     * prefix, for example the app com.android.contacts would use names
4066     * like "com.android.contacts.ShowAll".
4067     *
4068     * @param name The name of the extra data, with package prefix.
4069     * @param value The ArrayList<String> data value.
4070     *
4071     * @return Returns the same Intent object, for chaining multiple calls
4072     * into a single statement.
4073     *
4074     * @see #putExtras
4075     * @see #removeExtra
4076     * @see #getStringArrayListExtra(String)
4077     */
4078    public Intent putStringArrayListExtra(String name, ArrayList<String> value) {
4079        if (mExtras == null) {
4080            mExtras = new Bundle();
4081        }
4082        mExtras.putStringArrayList(name, value);
4083        return this;
4084    }
4085
4086    /**
4087     * Add extended data to the intent.  The name must include a package
4088     * prefix, for example the app com.android.contacts would use names
4089     * like "com.android.contacts.ShowAll".
4090     *
4091     * @param name The name of the extra data, with package prefix.
4092     * @param value The Serializable data value.
4093     *
4094     * @return Returns the same Intent object, for chaining multiple calls
4095     * into a single statement.
4096     *
4097     * @see #putExtras
4098     * @see #removeExtra
4099     * @see #getSerializableExtra(String)
4100     */
4101    public Intent putExtra(String name, Serializable value) {
4102        if (mExtras == null) {
4103            mExtras = new Bundle();
4104        }
4105        mExtras.putSerializable(name, value);
4106        return this;
4107    }
4108
4109    /**
4110     * Add extended data to the intent.  The name must include a package
4111     * prefix, for example the app com.android.contacts would use names
4112     * like "com.android.contacts.ShowAll".
4113     *
4114     * @param name The name of the extra data, with package prefix.
4115     * @param value The boolean array data value.
4116     *
4117     * @return Returns the same Intent object, for chaining multiple calls
4118     * into a single statement.
4119     *
4120     * @see #putExtras
4121     * @see #removeExtra
4122     * @see #getBooleanArrayExtra(String)
4123     */
4124    public Intent putExtra(String name, boolean[] value) {
4125        if (mExtras == null) {
4126            mExtras = new Bundle();
4127        }
4128        mExtras.putBooleanArray(name, value);
4129        return this;
4130    }
4131
4132    /**
4133     * Add extended data to the intent.  The name must include a package
4134     * prefix, for example the app com.android.contacts would use names
4135     * like "com.android.contacts.ShowAll".
4136     *
4137     * @param name The name of the extra data, with package prefix.
4138     * @param value The byte array data value.
4139     *
4140     * @return Returns the same Intent object, for chaining multiple calls
4141     * into a single statement.
4142     *
4143     * @see #putExtras
4144     * @see #removeExtra
4145     * @see #getByteArrayExtra(String)
4146     */
4147    public Intent putExtra(String name, byte[] value) {
4148        if (mExtras == null) {
4149            mExtras = new Bundle();
4150        }
4151        mExtras.putByteArray(name, value);
4152        return this;
4153    }
4154
4155    /**
4156     * Add extended data to the intent.  The name must include a package
4157     * prefix, for example the app com.android.contacts would use names
4158     * like "com.android.contacts.ShowAll".
4159     *
4160     * @param name The name of the extra data, with package prefix.
4161     * @param value The short array data value.
4162     *
4163     * @return Returns the same Intent object, for chaining multiple calls
4164     * into a single statement.
4165     *
4166     * @see #putExtras
4167     * @see #removeExtra
4168     * @see #getShortArrayExtra(String)
4169     */
4170    public Intent putExtra(String name, short[] value) {
4171        if (mExtras == null) {
4172            mExtras = new Bundle();
4173        }
4174        mExtras.putShortArray(name, value);
4175        return this;
4176    }
4177
4178    /**
4179     * Add extended data to the intent.  The name must include a package
4180     * prefix, for example the app com.android.contacts would use names
4181     * like "com.android.contacts.ShowAll".
4182     *
4183     * @param name The name of the extra data, with package prefix.
4184     * @param value The char array data value.
4185     *
4186     * @return Returns the same Intent object, for chaining multiple calls
4187     * into a single statement.
4188     *
4189     * @see #putExtras
4190     * @see #removeExtra
4191     * @see #getCharArrayExtra(String)
4192     */
4193    public Intent putExtra(String name, char[] value) {
4194        if (mExtras == null) {
4195            mExtras = new Bundle();
4196        }
4197        mExtras.putCharArray(name, value);
4198        return this;
4199    }
4200
4201    /**
4202     * Add extended data to the intent.  The name must include a package
4203     * prefix, for example the app com.android.contacts would use names
4204     * like "com.android.contacts.ShowAll".
4205     *
4206     * @param name The name of the extra data, with package prefix.
4207     * @param value The int array data value.
4208     *
4209     * @return Returns the same Intent object, for chaining multiple calls
4210     * into a single statement.
4211     *
4212     * @see #putExtras
4213     * @see #removeExtra
4214     * @see #getIntArrayExtra(String)
4215     */
4216    public Intent putExtra(String name, int[] value) {
4217        if (mExtras == null) {
4218            mExtras = new Bundle();
4219        }
4220        mExtras.putIntArray(name, value);
4221        return this;
4222    }
4223
4224    /**
4225     * Add extended data to the intent.  The name must include a package
4226     * prefix, for example the app com.android.contacts would use names
4227     * like "com.android.contacts.ShowAll".
4228     *
4229     * @param name The name of the extra data, with package prefix.
4230     * @param value The byte array data value.
4231     *
4232     * @return Returns the same Intent object, for chaining multiple calls
4233     * into a single statement.
4234     *
4235     * @see #putExtras
4236     * @see #removeExtra
4237     * @see #getLongArrayExtra(String)
4238     */
4239    public Intent putExtra(String name, long[] value) {
4240        if (mExtras == null) {
4241            mExtras = new Bundle();
4242        }
4243        mExtras.putLongArray(name, value);
4244        return this;
4245    }
4246
4247    /**
4248     * Add extended data to the intent.  The name must include a package
4249     * prefix, for example the app com.android.contacts would use names
4250     * like "com.android.contacts.ShowAll".
4251     *
4252     * @param name The name of the extra data, with package prefix.
4253     * @param value The float array data value.
4254     *
4255     * @return Returns the same Intent object, for chaining multiple calls
4256     * into a single statement.
4257     *
4258     * @see #putExtras
4259     * @see #removeExtra
4260     * @see #getFloatArrayExtra(String)
4261     */
4262    public Intent putExtra(String name, float[] value) {
4263        if (mExtras == null) {
4264            mExtras = new Bundle();
4265        }
4266        mExtras.putFloatArray(name, value);
4267        return this;
4268    }
4269
4270    /**
4271     * Add extended data to the intent.  The name must include a package
4272     * prefix, for example the app com.android.contacts would use names
4273     * like "com.android.contacts.ShowAll".
4274     *
4275     * @param name The name of the extra data, with package prefix.
4276     * @param value The double array data value.
4277     *
4278     * @return Returns the same Intent object, for chaining multiple calls
4279     * into a single statement.
4280     *
4281     * @see #putExtras
4282     * @see #removeExtra
4283     * @see #getDoubleArrayExtra(String)
4284     */
4285    public Intent putExtra(String name, double[] value) {
4286        if (mExtras == null) {
4287            mExtras = new Bundle();
4288        }
4289        mExtras.putDoubleArray(name, value);
4290        return this;
4291    }
4292
4293    /**
4294     * Add extended data to the intent.  The name must include a package
4295     * prefix, for example the app com.android.contacts would use names
4296     * like "com.android.contacts.ShowAll".
4297     *
4298     * @param name The name of the extra data, with package prefix.
4299     * @param value The String array data value.
4300     *
4301     * @return Returns the same Intent object, for chaining multiple calls
4302     * into a single statement.
4303     *
4304     * @see #putExtras
4305     * @see #removeExtra
4306     * @see #getStringArrayExtra(String)
4307     */
4308    public Intent putExtra(String name, String[] value) {
4309        if (mExtras == null) {
4310            mExtras = new Bundle();
4311        }
4312        mExtras.putStringArray(name, value);
4313        return this;
4314    }
4315
4316    /**
4317     * Add extended data to the intent.  The name must include a package
4318     * prefix, for example the app com.android.contacts would use names
4319     * like "com.android.contacts.ShowAll".
4320     *
4321     * @param name The name of the extra data, with package prefix.
4322     * @param value The Bundle data value.
4323     *
4324     * @return Returns the same Intent object, for chaining multiple calls
4325     * into a single statement.
4326     *
4327     * @see #putExtras
4328     * @see #removeExtra
4329     * @see #getBundleExtra(String)
4330     */
4331    public Intent putExtra(String name, Bundle value) {
4332        if (mExtras == null) {
4333            mExtras = new Bundle();
4334        }
4335        mExtras.putBundle(name, value);
4336        return this;
4337    }
4338
4339    /**
4340     * Add extended data to the intent.  The name must include a package
4341     * prefix, for example the app com.android.contacts would use names
4342     * like "com.android.contacts.ShowAll".
4343     *
4344     * @param name The name of the extra data, with package prefix.
4345     * @param value The IBinder data value.
4346     *
4347     * @return Returns the same Intent object, for chaining multiple calls
4348     * into a single statement.
4349     *
4350     * @see #putExtras
4351     * @see #removeExtra
4352     * @see #getIBinderExtra(String)
4353     *
4354     * @deprecated
4355     * @hide
4356     */
4357    @Deprecated
4358    public Intent putExtra(String name, IBinder value) {
4359        if (mExtras == null) {
4360            mExtras = new Bundle();
4361        }
4362        mExtras.putIBinder(name, value);
4363        return this;
4364    }
4365
4366    /**
4367     * Copy all extras in 'src' in to this intent.
4368     *
4369     * @param src Contains the extras to copy.
4370     *
4371     * @see #putExtra
4372     */
4373    public Intent putExtras(Intent src) {
4374        if (src.mExtras != null) {
4375            if (mExtras == null) {
4376                mExtras = new Bundle(src.mExtras);
4377            } else {
4378                mExtras.putAll(src.mExtras);
4379            }
4380        }
4381        return this;
4382    }
4383
4384    /**
4385     * Add a set of extended data to the intent.  The keys must include a package
4386     * prefix, for example the app com.android.contacts would use names
4387     * like "com.android.contacts.ShowAll".
4388     *
4389     * @param extras The Bundle of extras to add to this intent.
4390     *
4391     * @see #putExtra
4392     * @see #removeExtra
4393     */
4394    public Intent putExtras(Bundle extras) {
4395        if (mExtras == null) {
4396            mExtras = new Bundle();
4397        }
4398        mExtras.putAll(extras);
4399        return this;
4400    }
4401
4402    /**
4403     * Completely replace the extras in the Intent with the extras in the
4404     * given Intent.
4405     *
4406     * @param src The exact extras contained in this Intent are copied
4407     * into the target intent, replacing any that were previously there.
4408     */
4409    public Intent replaceExtras(Intent src) {
4410        mExtras = src.mExtras != null ? new Bundle(src.mExtras) : null;
4411        return this;
4412    }
4413
4414    /**
4415     * Completely replace the extras in the Intent with the given Bundle of
4416     * extras.
4417     *
4418     * @param extras The new set of extras in the Intent, or null to erase
4419     * all extras.
4420     */
4421    public Intent replaceExtras(Bundle extras) {
4422        mExtras = extras != null ? new Bundle(extras) : null;
4423        return this;
4424    }
4425
4426    /**
4427     * Remove extended data from the intent.
4428     *
4429     * @see #putExtra
4430     */
4431    public void removeExtra(String name) {
4432        if (mExtras != null) {
4433            mExtras.remove(name);
4434            if (mExtras.size() == 0) {
4435                mExtras = null;
4436            }
4437        }
4438    }
4439
4440    /**
4441     * Set special flags controlling how this intent is handled.  Most values
4442     * here depend on the type of component being executed by the Intent,
4443     * specifically the FLAG_ACTIVITY_* flags are all for use with
4444     * {@link Context#startActivity Context.startActivity()} and the
4445     * FLAG_RECEIVER_* flags are all for use with
4446     * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
4447     *
4448     * <p>See the <a href="{@docRoot}guide/topics/fundamentals.html#acttask">Application Fundamentals:
4449     * Activities and Tasks</a> documentation for important information on how some of these options impact
4450     * the behavior of your application.
4451     *
4452     * @param flags The desired flags.
4453     *
4454     * @return Returns the same Intent object, for chaining multiple calls
4455     * into a single statement.
4456     *
4457     * @see #getFlags
4458     * @see #addFlags
4459     *
4460     * @see #FLAG_GRANT_READ_URI_PERMISSION
4461     * @see #FLAG_GRANT_WRITE_URI_PERMISSION
4462     * @see #FLAG_DEBUG_LOG_RESOLUTION
4463     * @see #FLAG_FROM_BACKGROUND
4464     * @see #FLAG_ACTIVITY_BROUGHT_TO_FRONT
4465     * @see #FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
4466     * @see #FLAG_ACTIVITY_CLEAR_TOP
4467     * @see #FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
4468     * @see #FLAG_ACTIVITY_FORWARD_RESULT
4469     * @see #FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
4470     * @see #FLAG_ACTIVITY_MULTIPLE_TASK
4471     * @see #FLAG_ACTIVITY_NEW_TASK
4472     * @see #FLAG_ACTIVITY_NO_HISTORY
4473     * @see #FLAG_ACTIVITY_NO_USER_ACTION
4474     * @see #FLAG_ACTIVITY_PREVIOUS_IS_TOP
4475     * @see #FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
4476     * @see #FLAG_ACTIVITY_SINGLE_TOP
4477     * @see #FLAG_RECEIVER_REGISTERED_ONLY
4478     */
4479    public Intent setFlags(int flags) {
4480        mFlags = flags;
4481        return this;
4482    }
4483
4484    /**
4485     * Add additional flags to the intent (or with existing flags
4486     * value).
4487     *
4488     * @param flags The new flags to set.
4489     *
4490     * @return Returns the same Intent object, for chaining multiple calls
4491     * into a single statement.
4492     *
4493     * @see #setFlags
4494     */
4495    public Intent addFlags(int flags) {
4496        mFlags |= flags;
4497        return this;
4498    }
4499
4500    /**
4501     * (Usually optional) Set an explicit application package name that limits
4502     * the components this Intent will resolve to.  If left to the default
4503     * value of null, all components in all applications will considered.
4504     * If non-null, the Intent can only match the components in the given
4505     * application package.
4506     *
4507     * @param packageName The name of the application package to handle the
4508     * intent, or null to allow any application package.
4509     *
4510     * @return Returns the same Intent object, for chaining multiple calls
4511     * into a single statement.
4512     *
4513     * @see #getPackage
4514     * @see #resolveActivity
4515     */
4516    public Intent setPackage(String packageName) {
4517        mPackage = packageName;
4518        return this;
4519    }
4520
4521    /**
4522     * (Usually optional) Explicitly set the component to handle the intent.
4523     * If left with the default value of null, the system will determine the
4524     * appropriate class to use based on the other fields (action, data,
4525     * type, categories) in the Intent.  If this class is defined, the
4526     * specified class will always be used regardless of the other fields.  You
4527     * should only set this value when you know you absolutely want a specific
4528     * class to be used; otherwise it is better to let the system find the
4529     * appropriate class so that you will respect the installed applications
4530     * and user preferences.
4531     *
4532     * @param component The name of the application component to handle the
4533     * intent, or null to let the system find one for you.
4534     *
4535     * @return Returns the same Intent object, for chaining multiple calls
4536     * into a single statement.
4537     *
4538     * @see #setClass
4539     * @see #setClassName(Context, String)
4540     * @see #setClassName(String, String)
4541     * @see #getComponent
4542     * @see #resolveActivity
4543     */
4544    public Intent setComponent(ComponentName component) {
4545        mComponent = component;
4546        return this;
4547    }
4548
4549    /**
4550     * Convenience for calling {@link #setComponent} with an
4551     * explicit class name.
4552     *
4553     * @param packageContext A Context of the application package implementing
4554     * this class.
4555     * @param className The name of a class inside of the application package
4556     * that will be used as the component for this Intent.
4557     *
4558     * @return Returns the same Intent object, for chaining multiple calls
4559     * into a single statement.
4560     *
4561     * @see #setComponent
4562     * @see #setClass
4563     */
4564    public Intent setClassName(Context packageContext, String className) {
4565        mComponent = new ComponentName(packageContext, className);
4566        return this;
4567    }
4568
4569    /**
4570     * Convenience for calling {@link #setComponent} with an
4571     * explicit application package name and class name.
4572     *
4573     * @param packageName The name of the package implementing the desired
4574     * component.
4575     * @param className The name of a class inside of the application package
4576     * that will be used as the component for this Intent.
4577     *
4578     * @return Returns the same Intent object, for chaining multiple calls
4579     * into a single statement.
4580     *
4581     * @see #setComponent
4582     * @see #setClass
4583     */
4584    public Intent setClassName(String packageName, String className) {
4585        mComponent = new ComponentName(packageName, className);
4586        return this;
4587    }
4588
4589    /**
4590     * Convenience for calling {@link #setComponent(ComponentName)} with the
4591     * name returned by a {@link Class} object.
4592     *
4593     * @param packageContext A Context of the application package implementing
4594     * this class.
4595     * @param cls The class name to set, equivalent to
4596     *            <code>setClassName(context, cls.getName())</code>.
4597     *
4598     * @return Returns the same Intent object, for chaining multiple calls
4599     * into a single statement.
4600     *
4601     * @see #setComponent
4602     */
4603    public Intent setClass(Context packageContext, Class<?> cls) {
4604        mComponent = new ComponentName(packageContext, cls);
4605        return this;
4606    }
4607
4608    /**
4609     * Use with {@link #fillIn} to allow the current action value to be
4610     * overwritten, even if it is already set.
4611     */
4612    public static final int FILL_IN_ACTION = 1<<0;
4613
4614    /**
4615     * Use with {@link #fillIn} to allow the current data or type value
4616     * overwritten, even if it is already set.
4617     */
4618    public static final int FILL_IN_DATA = 1<<1;
4619
4620    /**
4621     * Use with {@link #fillIn} to allow the current categories to be
4622     * overwritten, even if they are already set.
4623     */
4624    public static final int FILL_IN_CATEGORIES = 1<<2;
4625
4626    /**
4627     * Use with {@link #fillIn} to allow the current component value to be
4628     * overwritten, even if it is already set.
4629     */
4630    public static final int FILL_IN_COMPONENT = 1<<3;
4631
4632    /**
4633     * Use with {@link #fillIn} to allow the current package value to be
4634     * overwritten, even if it is already set.
4635     */
4636    public static final int FILL_IN_PACKAGE = 1<<4;
4637
4638    /**
4639     * Copy the contents of <var>other</var> in to this object, but only
4640     * where fields are not defined by this object.  For purposes of a field
4641     * being defined, the following pieces of data in the Intent are
4642     * considered to be separate fields:
4643     *
4644     * <ul>
4645     * <li> action, as set by {@link #setAction}.
4646     * <li> data URI and MIME type, as set by {@link #setData(Uri)},
4647     * {@link #setType(String)}, or {@link #setDataAndType(Uri, String)}.
4648     * <li> categories, as set by {@link #addCategory}.
4649     * <li> package, as set by {@link #setPackage}.
4650     * <li> component, as set by {@link #setComponent(ComponentName)} or
4651     * related methods.
4652     * <li> each top-level name in the associated extras.
4653     * </ul>
4654     *
4655     * <p>In addition, you can use the {@link #FILL_IN_ACTION},
4656     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4657     * and {@link #FILL_IN_COMPONENT} to override the restriction where the
4658     * corresponding field will not be replaced if it is already set.
4659     *
4660     * <p>Note: The component field will only be copied if {@link #FILL_IN_COMPONENT} is explicitly
4661     * specified.
4662     *
4663     * <p>For example, consider Intent A with {data="foo", categories="bar"}
4664     * and Intent B with {action="gotit", data-type="some/thing",
4665     * categories="one","two"}.
4666     *
4667     * <p>Calling A.fillIn(B, Intent.FILL_IN_DATA) will result in A now
4668     * containing: {action="gotit", data-type="some/thing",
4669     * categories="bar"}.
4670     *
4671     * @param other Another Intent whose values are to be used to fill in
4672     * the current one.
4673     * @param flags Options to control which fields can be filled in.
4674     *
4675     * @return Returns a bit mask of {@link #FILL_IN_ACTION},
4676     * {@link #FILL_IN_DATA}, {@link #FILL_IN_CATEGORIES}, {@link #FILL_IN_PACKAGE},
4677     * and {@link #FILL_IN_COMPONENT} indicating which fields were changed.
4678     */
4679    public int fillIn(Intent other, int flags) {
4680        int changes = 0;
4681        if (other.mAction != null
4682                && (mAction == null || (flags&FILL_IN_ACTION) != 0)) {
4683            mAction = other.mAction;
4684            changes |= FILL_IN_ACTION;
4685        }
4686        if ((other.mData != null || other.mType != null)
4687                && ((mData == null && mType == null)
4688                        || (flags&FILL_IN_DATA) != 0)) {
4689            mData = other.mData;
4690            mType = other.mType;
4691            changes |= FILL_IN_DATA;
4692        }
4693        if (other.mCategories != null
4694                && (mCategories == null || (flags&FILL_IN_CATEGORIES) != 0)) {
4695            if (other.mCategories != null) {
4696                mCategories = new HashSet<String>(other.mCategories);
4697            }
4698            changes |= FILL_IN_CATEGORIES;
4699        }
4700        if (other.mPackage != null
4701                && (mPackage == null || (flags&FILL_IN_PACKAGE) != 0)) {
4702            mPackage = other.mPackage;
4703            changes |= FILL_IN_PACKAGE;
4704        }
4705        // Component is special: it can -only- be set if explicitly allowed,
4706        // since otherwise the sender could force the intent somewhere the
4707        // originator didn't intend.
4708        if (other.mComponent != null && (flags&FILL_IN_COMPONENT) != 0) {
4709            mComponent = other.mComponent;
4710            changes |= FILL_IN_COMPONENT;
4711        }
4712        mFlags |= other.mFlags;
4713        if (mExtras == null) {
4714            if (other.mExtras != null) {
4715                mExtras = new Bundle(other.mExtras);
4716            }
4717        } else if (other.mExtras != null) {
4718            try {
4719                Bundle newb = new Bundle(other.mExtras);
4720                newb.putAll(mExtras);
4721                mExtras = newb;
4722            } catch (RuntimeException e) {
4723                // Modifying the extras can cause us to unparcel the contents
4724                // of the bundle, and if we do this in the system process that
4725                // may fail.  We really should handle this (i.e., the Bundle
4726                // impl shouldn't be on top of a plain map), but for now just
4727                // ignore it and keep the original contents. :(
4728                Log.w("Intent", "Failure filling in extras", e);
4729            }
4730        }
4731        return changes;
4732    }
4733
4734    /**
4735     * Wrapper class holding an Intent and implementing comparisons on it for
4736     * the purpose of filtering.  The class implements its
4737     * {@link #equals equals()} and {@link #hashCode hashCode()} methods as
4738     * simple calls to {@link Intent#filterEquals(Intent)}  filterEquals()} and
4739     * {@link android.content.Intent#filterHashCode()}  filterHashCode()}
4740     * on the wrapped Intent.
4741     */
4742    public static final class FilterComparison {
4743        private final Intent mIntent;
4744        private final int mHashCode;
4745
4746        public FilterComparison(Intent intent) {
4747            mIntent = intent;
4748            mHashCode = intent.filterHashCode();
4749        }
4750
4751        /**
4752         * Return the Intent that this FilterComparison represents.
4753         * @return Returns the Intent held by the FilterComparison.  Do
4754         * not modify!
4755         */
4756        public Intent getIntent() {
4757            return mIntent;
4758        }
4759
4760        @Override
4761        public boolean equals(Object obj) {
4762            if (obj instanceof FilterComparison) {
4763                Intent other = ((FilterComparison)obj).mIntent;
4764                return mIntent.filterEquals(other);
4765            }
4766            return false;
4767        }
4768
4769        @Override
4770        public int hashCode() {
4771            return mHashCode;
4772        }
4773    }
4774
4775    /**
4776     * Determine if two intents are the same for the purposes of intent
4777     * resolution (filtering). That is, if their action, data, type,
4778     * class, and categories are the same.  This does <em>not</em> compare
4779     * any extra data included in the intents.
4780     *
4781     * @param other The other Intent to compare against.
4782     *
4783     * @return Returns true if action, data, type, class, and categories
4784     *         are the same.
4785     */
4786    public boolean filterEquals(Intent other) {
4787        if (other == null) {
4788            return false;
4789        }
4790        if (mAction != other.mAction) {
4791            if (mAction != null) {
4792                if (!mAction.equals(other.mAction)) {
4793                    return false;
4794                }
4795            } else {
4796                if (!other.mAction.equals(mAction)) {
4797                    return false;
4798                }
4799            }
4800        }
4801        if (mData != other.mData) {
4802            if (mData != null) {
4803                if (!mData.equals(other.mData)) {
4804                    return false;
4805                }
4806            } else {
4807                if (!other.mData.equals(mData)) {
4808                    return false;
4809                }
4810            }
4811        }
4812        if (mType != other.mType) {
4813            if (mType != null) {
4814                if (!mType.equals(other.mType)) {
4815                    return false;
4816                }
4817            } else {
4818                if (!other.mType.equals(mType)) {
4819                    return false;
4820                }
4821            }
4822        }
4823        if (mPackage != other.mPackage) {
4824            if (mPackage != null) {
4825                if (!mPackage.equals(other.mPackage)) {
4826                    return false;
4827                }
4828            } else {
4829                if (!other.mPackage.equals(mPackage)) {
4830                    return false;
4831                }
4832            }
4833        }
4834        if (mComponent != other.mComponent) {
4835            if (mComponent != null) {
4836                if (!mComponent.equals(other.mComponent)) {
4837                    return false;
4838                }
4839            } else {
4840                if (!other.mComponent.equals(mComponent)) {
4841                    return false;
4842                }
4843            }
4844        }
4845        if (mCategories != other.mCategories) {
4846            if (mCategories != null) {
4847                if (!mCategories.equals(other.mCategories)) {
4848                    return false;
4849                }
4850            } else {
4851                if (!other.mCategories.equals(mCategories)) {
4852                    return false;
4853                }
4854            }
4855        }
4856
4857        return true;
4858    }
4859
4860    /**
4861     * Generate hash code that matches semantics of filterEquals().
4862     *
4863     * @return Returns the hash value of the action, data, type, class, and
4864     *         categories.
4865     *
4866     * @see #filterEquals
4867     */
4868    public int filterHashCode() {
4869        int code = 0;
4870        if (mAction != null) {
4871            code += mAction.hashCode();
4872        }
4873        if (mData != null) {
4874            code += mData.hashCode();
4875        }
4876        if (mType != null) {
4877            code += mType.hashCode();
4878        }
4879        if (mPackage != null) {
4880            code += mPackage.hashCode();
4881        }
4882        if (mComponent != null) {
4883            code += mComponent.hashCode();
4884        }
4885        if (mCategories != null) {
4886            code += mCategories.hashCode();
4887        }
4888        return code;
4889    }
4890
4891    @Override
4892    public String toString() {
4893        StringBuilder   b = new StringBuilder(128);
4894
4895        b.append("Intent { ");
4896        toShortString(b, true, true);
4897        b.append(" }");
4898
4899        return b.toString();
4900    }
4901
4902    /** @hide */
4903    public String toShortString(boolean comp, boolean extras) {
4904        StringBuilder   b = new StringBuilder(128);
4905        toShortString(b, comp, extras);
4906        return b.toString();
4907    }
4908
4909    /** @hide */
4910    public void toShortString(StringBuilder b, boolean comp, boolean extras) {
4911        boolean first = true;
4912        if (mAction != null) {
4913            b.append("act=").append(mAction);
4914            first = false;
4915        }
4916        if (mCategories != null) {
4917            if (!first) {
4918                b.append(' ');
4919            }
4920            first = false;
4921            b.append("cat=[");
4922            Iterator<String> i = mCategories.iterator();
4923            boolean didone = false;
4924            while (i.hasNext()) {
4925                if (didone) b.append(",");
4926                didone = true;
4927                b.append(i.next());
4928            }
4929            b.append("]");
4930        }
4931        if (mData != null) {
4932            if (!first) {
4933                b.append(' ');
4934            }
4935            first = false;
4936            b.append("dat=").append(mData);
4937        }
4938        if (mType != null) {
4939            if (!first) {
4940                b.append(' ');
4941            }
4942            first = false;
4943            b.append("typ=").append(mType);
4944        }
4945        if (mFlags != 0) {
4946            if (!first) {
4947                b.append(' ');
4948            }
4949            first = false;
4950            b.append("flg=0x").append(Integer.toHexString(mFlags));
4951        }
4952        if (mPackage != null) {
4953            if (!first) {
4954                b.append(' ');
4955            }
4956            first = false;
4957            b.append("pkg=").append(mPackage);
4958        }
4959        if (comp && mComponent != null) {
4960            if (!first) {
4961                b.append(' ');
4962            }
4963            first = false;
4964            b.append("cmp=").append(mComponent.flattenToShortString());
4965        }
4966        if (extras && mExtras != null) {
4967            if (!first) {
4968                b.append(' ');
4969            }
4970            first = false;
4971            b.append("(has extras)");
4972        }
4973    }
4974
4975    /**
4976     * Call {@link #toUri} with 0 flags.
4977     * @deprecated Use {@link #toUri} instead.
4978     */
4979    @Deprecated
4980    public String toURI() {
4981        return toUri(0);
4982    }
4983
4984    /**
4985     * Convert this Intent into a String holding a URI representation of it.
4986     * The returned URI string has been properly URI encoded, so it can be
4987     * used with {@link Uri#parse Uri.parse(String)}.  The URI contains the
4988     * Intent's data as the base URI, with an additional fragment describing
4989     * the action, categories, type, flags, package, component, and extras.
4990     *
4991     * <p>You can convert the returned string back to an Intent with
4992     * {@link #getIntent}.
4993     *
4994     * @param flags Additional operating flags.  Either 0 or
4995     * {@link #URI_INTENT_SCHEME}.
4996     *
4997     * @return Returns a URI encoding URI string describing the entire contents
4998     * of the Intent.
4999     */
5000    public String toUri(int flags) {
5001        StringBuilder uri = new StringBuilder(128);
5002        String scheme = null;
5003        if (mData != null) {
5004            String data = mData.toString();
5005            if ((flags&URI_INTENT_SCHEME) != 0) {
5006                final int N = data.length();
5007                for (int i=0; i<N; i++) {
5008                    char c = data.charAt(i);
5009                    if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
5010                            || c == '.' || c == '-') {
5011                        continue;
5012                    }
5013                    if (c == ':' && i > 0) {
5014                        // Valid scheme.
5015                        scheme = data.substring(0, i);
5016                        uri.append("intent:");
5017                        data = data.substring(i+1);
5018                        break;
5019                    }
5020
5021                    // No scheme.
5022                    break;
5023                }
5024            }
5025            uri.append(data);
5026
5027        } else if ((flags&URI_INTENT_SCHEME) != 0) {
5028            uri.append("intent:");
5029        }
5030
5031        uri.append("#Intent;");
5032
5033        if (scheme != null) {
5034            uri.append("scheme=").append(scheme).append(';');
5035        }
5036        if (mAction != null) {
5037            uri.append("action=").append(Uri.encode(mAction)).append(';');
5038        }
5039        if (mCategories != null) {
5040            for (String category : mCategories) {
5041                uri.append("category=").append(Uri.encode(category)).append(';');
5042            }
5043        }
5044        if (mType != null) {
5045            uri.append("type=").append(Uri.encode(mType, "/")).append(';');
5046        }
5047        if (mFlags != 0) {
5048            uri.append("launchFlags=0x").append(Integer.toHexString(mFlags)).append(';');
5049        }
5050        if (mPackage != null) {
5051            uri.append("package=").append(Uri.encode(mPackage)).append(';');
5052        }
5053        if (mComponent != null) {
5054            uri.append("component=").append(Uri.encode(
5055                    mComponent.flattenToShortString(), "/")).append(';');
5056        }
5057        if (mExtras != null) {
5058            for (String key : mExtras.keySet()) {
5059                final Object value = mExtras.get(key);
5060                char entryType =
5061                        value instanceof String    ? 'S' :
5062                        value instanceof Boolean   ? 'B' :
5063                        value instanceof Byte      ? 'b' :
5064                        value instanceof Character ? 'c' :
5065                        value instanceof Double    ? 'd' :
5066                        value instanceof Float     ? 'f' :
5067                        value instanceof Integer   ? 'i' :
5068                        value instanceof Long      ? 'l' :
5069                        value instanceof Short     ? 's' :
5070                        '\0';
5071
5072                if (entryType != '\0') {
5073                    uri.append(entryType);
5074                    uri.append('.');
5075                    uri.append(Uri.encode(key));
5076                    uri.append('=');
5077                    uri.append(Uri.encode(value.toString()));
5078                    uri.append(';');
5079                }
5080            }
5081        }
5082
5083        uri.append("end");
5084
5085        return uri.toString();
5086    }
5087
5088    public int describeContents() {
5089        return (mExtras != null) ? mExtras.describeContents() : 0;
5090    }
5091
5092    public void writeToParcel(Parcel out, int flags) {
5093        out.writeString(mAction);
5094        Uri.writeToParcel(out, mData);
5095        out.writeString(mType);
5096        out.writeInt(mFlags);
5097        out.writeString(mPackage);
5098        ComponentName.writeToParcel(mComponent, out);
5099
5100        if (mCategories != null) {
5101            out.writeInt(mCategories.size());
5102            for (String category : mCategories) {
5103                out.writeString(category);
5104            }
5105        } else {
5106            out.writeInt(0);
5107        }
5108
5109        out.writeBundle(mExtras);
5110    }
5111
5112    public static final Parcelable.Creator<Intent> CREATOR
5113            = new Parcelable.Creator<Intent>() {
5114        public Intent createFromParcel(Parcel in) {
5115            return new Intent(in);
5116        }
5117        public Intent[] newArray(int size) {
5118            return new Intent[size];
5119        }
5120    };
5121
5122    /** @hide */
5123    protected Intent(Parcel in) {
5124        readFromParcel(in);
5125    }
5126
5127    public void readFromParcel(Parcel in) {
5128        mAction = in.readString();
5129        mData = Uri.CREATOR.createFromParcel(in);
5130        mType = in.readString();
5131        mFlags = in.readInt();
5132        mPackage = in.readString();
5133        mComponent = ComponentName.readFromParcel(in);
5134
5135        int N = in.readInt();
5136        if (N > 0) {
5137            mCategories = new HashSet<String>();
5138            int i;
5139            for (i=0; i<N; i++) {
5140                mCategories.add(in.readString());
5141            }
5142        } else {
5143            mCategories = null;
5144        }
5145
5146        mExtras = in.readBundle();
5147    }
5148
5149    /**
5150     * Parses the "intent" element (and its children) from XML and instantiates
5151     * an Intent object.  The given XML parser should be located at the tag
5152     * where parsing should start (often named "intent"), from which the
5153     * basic action, data, type, and package and class name will be
5154     * retrieved.  The function will then parse in to any child elements,
5155     * looking for <category android:name="xxx"> tags to add categories and
5156     * <extra android:name="xxx" android:value="yyy"> to attach extra data
5157     * to the intent.
5158     *
5159     * @param resources The Resources to use when inflating resources.
5160     * @param parser The XML parser pointing at an "intent" tag.
5161     * @param attrs The AttributeSet interface for retrieving extended
5162     * attribute data at the current <var>parser</var> location.
5163     * @return An Intent object matching the XML data.
5164     * @throws XmlPullParserException If there was an XML parsing error.
5165     * @throws IOException If there was an I/O error.
5166     */
5167    public static Intent parseIntent(Resources resources, XmlPullParser parser, AttributeSet attrs)
5168            throws XmlPullParserException, IOException {
5169        Intent intent = new Intent();
5170
5171        TypedArray sa = resources.obtainAttributes(attrs,
5172                com.android.internal.R.styleable.Intent);
5173
5174        intent.setAction(sa.getString(com.android.internal.R.styleable.Intent_action));
5175
5176        String data = sa.getString(com.android.internal.R.styleable.Intent_data);
5177        String mimeType = sa.getString(com.android.internal.R.styleable.Intent_mimeType);
5178        intent.setDataAndType(data != null ? Uri.parse(data) : null, mimeType);
5179
5180        String packageName = sa.getString(com.android.internal.R.styleable.Intent_targetPackage);
5181        String className = sa.getString(com.android.internal.R.styleable.Intent_targetClass);
5182        if (packageName != null && className != null) {
5183            intent.setComponent(new ComponentName(packageName, className));
5184        }
5185
5186        sa.recycle();
5187
5188        int outerDepth = parser.getDepth();
5189        int type;
5190        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
5191               && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
5192            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
5193                continue;
5194            }
5195
5196            String nodeName = parser.getName();
5197            if (nodeName.equals("category")) {
5198                sa = resources.obtainAttributes(attrs,
5199                        com.android.internal.R.styleable.IntentCategory);
5200                String cat = sa.getString(com.android.internal.R.styleable.IntentCategory_name);
5201                sa.recycle();
5202
5203                if (cat != null) {
5204                    intent.addCategory(cat);
5205                }
5206                XmlUtils.skipCurrentTag(parser);
5207
5208            } else if (nodeName.equals("extra")) {
5209                if (intent.mExtras == null) {
5210                    intent.mExtras = new Bundle();
5211                }
5212                resources.parseBundleExtra("extra", attrs, intent.mExtras);
5213                XmlUtils.skipCurrentTag(parser);
5214
5215            } else {
5216                XmlUtils.skipCurrentTag(parser);
5217            }
5218        }
5219
5220        return intent;
5221    }
5222}
5223