PackageManager.java revision 6e2ae2590ded39f04f76d5ddca0f06fe01586e26
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.pm;
18
19import android.annotation.IntDef;
20import android.annotation.SystemApi;
21import android.annotation.SdkConstant;
22import android.annotation.SdkConstant.SdkConstantType;
23import android.app.PackageInstallObserver;
24import android.content.ComponentName;
25import android.content.Context;
26import android.content.Intent;
27import android.content.IntentFilter;
28import android.content.IntentSender;
29import android.content.pm.PackageParser.PackageParserException;
30import android.content.res.Resources;
31import android.content.res.XmlResourceParser;
32import android.graphics.drawable.Drawable;
33import android.net.Uri;
34import android.os.Environment;
35import android.os.UserHandle;
36import android.util.AndroidException;
37import android.util.DisplayMetrics;
38
39import java.io.File;
40import java.lang.annotation.Retention;
41import java.lang.annotation.RetentionPolicy;
42import java.util.List;
43
44/**
45 * Class for retrieving various kinds of information related to the application
46 * packages that are currently installed on the device.
47 *
48 * You can find this class through {@link Context#getPackageManager}.
49 */
50public abstract class PackageManager {
51
52    /**
53     * This exception is thrown when a given package, application, or component
54     * name cannot be found.
55     */
56    public static class NameNotFoundException extends AndroidException {
57        public NameNotFoundException() {
58        }
59
60        public NameNotFoundException(String name) {
61            super(name);
62        }
63    }
64
65    /**
66     * {@link PackageInfo} flag: return information about
67     * activities in the package in {@link PackageInfo#activities}.
68     */
69    public static final int GET_ACTIVITIES              = 0x00000001;
70
71    /**
72     * {@link PackageInfo} flag: return information about
73     * intent receivers in the package in
74     * {@link PackageInfo#receivers}.
75     */
76    public static final int GET_RECEIVERS               = 0x00000002;
77
78    /**
79     * {@link PackageInfo} flag: return information about
80     * services in the package in {@link PackageInfo#services}.
81     */
82    public static final int GET_SERVICES                = 0x00000004;
83
84    /**
85     * {@link PackageInfo} flag: return information about
86     * content providers in the package in
87     * {@link PackageInfo#providers}.
88     */
89    public static final int GET_PROVIDERS               = 0x00000008;
90
91    /**
92     * {@link PackageInfo} flag: return information about
93     * instrumentation in the package in
94     * {@link PackageInfo#instrumentation}.
95     */
96    public static final int GET_INSTRUMENTATION         = 0x00000010;
97
98    /**
99     * {@link PackageInfo} flag: return information about the
100     * intent filters supported by the activity.
101     */
102    public static final int GET_INTENT_FILTERS          = 0x00000020;
103
104    /**
105     * {@link PackageInfo} flag: return information about the
106     * signatures included in the package.
107     */
108    public static final int GET_SIGNATURES          = 0x00000040;
109
110    /**
111     * {@link ResolveInfo} flag: return the IntentFilter that
112     * was matched for a particular ResolveInfo in
113     * {@link ResolveInfo#filter}.
114     */
115    public static final int GET_RESOLVED_FILTER         = 0x00000040;
116
117    /**
118     * {@link ComponentInfo} flag: return the {@link ComponentInfo#metaData}
119     * data {@link android.os.Bundle}s that are associated with a component.
120     * This applies for any API returning a ComponentInfo subclass.
121     */
122    public static final int GET_META_DATA               = 0x00000080;
123
124    /**
125     * {@link PackageInfo} flag: return the
126     * {@link PackageInfo#gids group ids} that are associated with an
127     * application.
128     * This applies for any API returning a PackageInfo class, either
129     * directly or nested inside of another.
130     */
131    public static final int GET_GIDS                    = 0x00000100;
132
133    /**
134     * {@link PackageInfo} flag: include disabled components in the returned info.
135     */
136    public static final int GET_DISABLED_COMPONENTS     = 0x00000200;
137
138    /**
139     * {@link ApplicationInfo} flag: return the
140     * {@link ApplicationInfo#sharedLibraryFiles paths to the shared libraries}
141     * that are associated with an application.
142     * This applies for any API returning an ApplicationInfo class, either
143     * directly or nested inside of another.
144     */
145    public static final int GET_SHARED_LIBRARY_FILES    = 0x00000400;
146
147    /**
148     * {@link ProviderInfo} flag: return the
149     * {@link ProviderInfo#uriPermissionPatterns URI permission patterns}
150     * that are associated with a content provider.
151     * This applies for any API returning a ProviderInfo class, either
152     * directly or nested inside of another.
153     */
154    public static final int GET_URI_PERMISSION_PATTERNS  = 0x00000800;
155    /**
156     * {@link PackageInfo} flag: return information about
157     * permissions in the package in
158     * {@link PackageInfo#permissions}.
159     */
160    public static final int GET_PERMISSIONS               = 0x00001000;
161
162    /**
163     * Flag parameter to retrieve some information about all applications (even
164     * uninstalled ones) which have data directories. This state could have
165     * resulted if applications have been deleted with flag
166     * {@code DONT_DELETE_DATA} with a possibility of being replaced or
167     * reinstalled in future.
168     * <p>
169     * Note: this flag may cause less information about currently installed
170     * applications to be returned.
171     */
172    public static final int GET_UNINSTALLED_PACKAGES = 0x00002000;
173
174    /**
175     * {@link PackageInfo} flag: return information about
176     * hardware preferences in
177     * {@link PackageInfo#configPreferences PackageInfo.configPreferences} and
178     * requested features in {@link PackageInfo#reqFeatures
179     * PackageInfo.reqFeatures}.
180     */
181    public static final int GET_CONFIGURATIONS = 0x00004000;
182
183    /**
184     * {@link PackageInfo} flag: include disabled components which are in
185     * that state only because of {@link #COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED}
186     * in the returned info.  Note that if you set this flag, applications
187     * that are in this disabled state will be reported as enabled.
188     */
189    public static final int GET_DISABLED_UNTIL_USED_COMPONENTS = 0x00008000;
190
191    /**
192     * Resolution and querying flag: if set, only filters that support the
193     * {@link android.content.Intent#CATEGORY_DEFAULT} will be considered for
194     * matching.  This is a synonym for including the CATEGORY_DEFAULT in your
195     * supplied Intent.
196     */
197    public static final int MATCH_DEFAULT_ONLY   = 0x00010000;
198
199    /**
200     * Flag for {@link addCrossProfileIntentFilter}: if the cross-profile intent has been set by the
201     * profile owner.
202     * @hide
203     */
204    public static final int SET_BY_PROFILE_OWNER= 0x00000001;
205
206    /**
207     * Flag for {@link addCrossProfileIntentFilter}: if this flag is set:
208     * when resolving an intent that matches the {@link CrossProfileIntentFilter}, the current
209     * profile will be skipped.
210     * Only activities in the target user can respond to the intent.
211     * @hide
212     */
213    public static final int SKIP_CURRENT_PROFILE = 0x00000002;
214
215    /** @hide */
216    @IntDef({PERMISSION_GRANTED, PERMISSION_DENIED})
217    @Retention(RetentionPolicy.SOURCE)
218    public @interface PermissionResult {}
219
220    /**
221     * Permission check result: this is returned by {@link #checkPermission}
222     * if the permission has been granted to the given package.
223     */
224    public static final int PERMISSION_GRANTED = 0;
225
226    /**
227     * Permission check result: this is returned by {@link #checkPermission}
228     * if the permission has not been granted to the given package.
229     */
230    public static final int PERMISSION_DENIED = -1;
231
232    /**
233     * Signature check result: this is returned by {@link #checkSignatures}
234     * if all signatures on the two packages match.
235     */
236    public static final int SIGNATURE_MATCH = 0;
237
238    /**
239     * Signature check result: this is returned by {@link #checkSignatures}
240     * if neither of the two packages is signed.
241     */
242    public static final int SIGNATURE_NEITHER_SIGNED = 1;
243
244    /**
245     * Signature check result: this is returned by {@link #checkSignatures}
246     * if the first package is not signed but the second is.
247     */
248    public static final int SIGNATURE_FIRST_NOT_SIGNED = -1;
249
250    /**
251     * Signature check result: this is returned by {@link #checkSignatures}
252     * if the second package is not signed but the first is.
253     */
254    public static final int SIGNATURE_SECOND_NOT_SIGNED = -2;
255
256    /**
257     * Signature check result: this is returned by {@link #checkSignatures}
258     * if not all signatures on both packages match.
259     */
260    public static final int SIGNATURE_NO_MATCH = -3;
261
262    /**
263     * Signature check result: this is returned by {@link #checkSignatures}
264     * if either of the packages are not valid.
265     */
266    public static final int SIGNATURE_UNKNOWN_PACKAGE = -4;
267
268    /**
269     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
270     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
271     * component or application is in its default enabled state (as specified
272     * in its manifest).
273     */
274    public static final int COMPONENT_ENABLED_STATE_DEFAULT = 0;
275
276    /**
277     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
278     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
279     * component or application has been explictily enabled, regardless of
280     * what it has specified in its manifest.
281     */
282    public static final int COMPONENT_ENABLED_STATE_ENABLED = 1;
283
284    /**
285     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
286     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
287     * component or application has been explicitly disabled, regardless of
288     * what it has specified in its manifest.
289     */
290    public static final int COMPONENT_ENABLED_STATE_DISABLED = 2;
291
292    /**
293     * Flag for {@link #setApplicationEnabledSetting(String, int, int)} only: The
294     * user has explicitly disabled the application, regardless of what it has
295     * specified in its manifest.  Because this is due to the user's request,
296     * they may re-enable it if desired through the appropriate system UI.  This
297     * option currently <strong>cannot</strong> be used with
298     * {@link #setComponentEnabledSetting(ComponentName, int, int)}.
299     */
300    public static final int COMPONENT_ENABLED_STATE_DISABLED_USER = 3;
301
302    /**
303     * Flag for {@link #setApplicationEnabledSetting(String, int, int)} only: This
304     * application should be considered, until the point where the user actually
305     * wants to use it.  This means that it will not normally show up to the user
306     * (such as in the launcher), but various parts of the user interface can
307     * use {@link #GET_DISABLED_UNTIL_USED_COMPONENTS} to still see it and allow
308     * the user to select it (as for example an IME, device admin, etc).  Such code,
309     * once the user has selected the app, should at that point also make it enabled.
310     * This option currently <strong>can not</strong> be used with
311     * {@link #setComponentEnabledSetting(ComponentName, int, int)}.
312     */
313    public static final int COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED = 4;
314
315    /**
316     * Flag parameter for {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} to
317     * indicate that this package should be installed as forward locked, i.e. only the app itself
318     * should have access to its code and non-resource assets.
319     * @hide
320     */
321    public static final int INSTALL_FORWARD_LOCK = 0x00000001;
322
323    /**
324     * Flag parameter for {@link #installPackage} to indicate that you want to replace an already
325     * installed package, if one exists.
326     * @hide
327     */
328    public static final int INSTALL_REPLACE_EXISTING = 0x00000002;
329
330    /**
331     * Flag parameter for {@link #installPackage} to indicate that you want to
332     * allow test packages (those that have set android:testOnly in their
333     * manifest) to be installed.
334     * @hide
335     */
336    public static final int INSTALL_ALLOW_TEST = 0x00000004;
337
338    /**
339     * Flag parameter for {@link #installPackage} to indicate that this
340     * package has to be installed on the sdcard.
341     * @hide
342     */
343    public static final int INSTALL_EXTERNAL = 0x00000008;
344
345    /**
346     * Flag parameter for {@link #installPackage} to indicate that this package
347     * has to be installed on the sdcard.
348     * @hide
349     */
350    public static final int INSTALL_INTERNAL = 0x00000010;
351
352    /**
353     * Flag parameter for {@link #installPackage} to indicate that this install
354     * was initiated via ADB.
355     *
356     * @hide
357     */
358    public static final int INSTALL_FROM_ADB = 0x00000020;
359
360    /**
361     * Flag parameter for {@link #installPackage} to indicate that this install
362     * should immediately be visible to all users.
363     *
364     * @hide
365     */
366    public static final int INSTALL_ALL_USERS = 0x00000040;
367
368    /**
369     * Flag parameter for {@link #installPackage} to indicate that it is okay
370     * to install an update to an app where the newly installed app has a lower
371     * version code than the currently installed app.
372     *
373     * @hide
374     */
375    public static final int INSTALL_ALLOW_DOWNGRADE = 0x00000080;
376
377    /**
378     * Flag parameter for
379     * {@link #setComponentEnabledSetting(android.content.ComponentName, int, int)} to indicate
380     * that you don't want to kill the app containing the component.  Be careful when you set this
381     * since changing component states can make the containing application's behavior unpredictable.
382     */
383    public static final int DONT_KILL_APP = 0x00000001;
384
385    /**
386     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
387     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} on success.
388     * @hide
389     */
390    @SystemApi
391    public static final int INSTALL_SUCCEEDED = 1;
392
393    /**
394     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
395     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package is
396     * already installed.
397     * @hide
398     */
399    @SystemApi
400    public static final int INSTALL_FAILED_ALREADY_EXISTS = -1;
401
402    /**
403     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
404     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package archive
405     * file is invalid.
406     * @hide
407     */
408    @SystemApi
409    public static final int INSTALL_FAILED_INVALID_APK = -2;
410
411    /**
412     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
413     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the URI passed in
414     * is invalid.
415     * @hide
416     */
417    @SystemApi
418    public static final int INSTALL_FAILED_INVALID_URI = -3;
419
420    /**
421     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
422     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package manager
423     * service found that the device didn't have enough storage space to install the app.
424     * @hide
425     */
426    @SystemApi
427    public static final int INSTALL_FAILED_INSUFFICIENT_STORAGE = -4;
428
429    /**
430     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
431     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if a
432     * package is already installed with the same name.
433     * @hide
434     */
435    @SystemApi
436    public static final int INSTALL_FAILED_DUPLICATE_PACKAGE = -5;
437
438    /**
439     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
440     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
441     * the requested shared user does not exist.
442     * @hide
443     */
444    @SystemApi
445    public static final int INSTALL_FAILED_NO_SHARED_USER = -6;
446
447    /**
448     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
449     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
450     * a previously installed package of the same name has a different signature
451     * than the new package (and the old package's data was not removed).
452     * @hide
453     */
454    @SystemApi
455    public static final int INSTALL_FAILED_UPDATE_INCOMPATIBLE = -7;
456
457    /**
458     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
459     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
460     * the new package is requested a shared user which is already installed on the
461     * device and does not have matching signature.
462     * @hide
463     */
464    @SystemApi
465    public static final int INSTALL_FAILED_SHARED_USER_INCOMPATIBLE = -8;
466
467    /**
468     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
469     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
470     * the new package uses a shared library that is not available.
471     * @hide
472     */
473    @SystemApi
474    public static final int INSTALL_FAILED_MISSING_SHARED_LIBRARY = -9;
475
476    /**
477     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
478     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
479     * the new package uses a shared library that is not available.
480     * @hide
481     */
482    @SystemApi
483    public static final int INSTALL_FAILED_REPLACE_COULDNT_DELETE = -10;
484
485    /**
486     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
487     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
488     * the new package failed while optimizing and validating its dex files,
489     * either because there was not enough storage or the validation failed.
490     * @hide
491     */
492    @SystemApi
493    public static final int INSTALL_FAILED_DEXOPT = -11;
494
495    /**
496     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
497     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
498     * the new package failed because the current SDK version is older than
499     * that required by the package.
500     * @hide
501     */
502    @SystemApi
503    public static final int INSTALL_FAILED_OLDER_SDK = -12;
504
505    /**
506     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
507     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
508     * the new package failed because it contains a content provider with the
509     * same authority as a provider already installed in the system.
510     * @hide
511     */
512    @SystemApi
513    public static final int INSTALL_FAILED_CONFLICTING_PROVIDER = -13;
514
515    /**
516     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
517     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
518     * the new package failed because the current SDK version is newer than
519     * that required by the package.
520     * @hide
521     */
522    @SystemApi
523    public static final int INSTALL_FAILED_NEWER_SDK = -14;
524
525    /**
526     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
527     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
528     * the new package failed because it has specified that it is a test-only
529     * package and the caller has not supplied the {@link #INSTALL_ALLOW_TEST}
530     * flag.
531     * @hide
532     */
533    @SystemApi
534    public static final int INSTALL_FAILED_TEST_ONLY = -15;
535
536    /**
537     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
538     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
539     * the package being installed contains native code, but none that is
540     * compatible with the device's CPU_ABI.
541     * @hide
542     */
543    @SystemApi
544    public static final int INSTALL_FAILED_CPU_ABI_INCOMPATIBLE = -16;
545
546    /**
547     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
548     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
549     * the new package uses a feature that is not available.
550     * @hide
551     */
552    @SystemApi
553    public static final int INSTALL_FAILED_MISSING_FEATURE = -17;
554
555    // ------ Errors related to sdcard
556    /**
557     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
558     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
559     * a secure container mount point couldn't be accessed on external media.
560     * @hide
561     */
562    @SystemApi
563    public static final int INSTALL_FAILED_CONTAINER_ERROR = -18;
564
565    /**
566     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
567     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
568     * the new package couldn't be installed in the specified install
569     * location.
570     * @hide
571     */
572    @SystemApi
573    public static final int INSTALL_FAILED_INVALID_INSTALL_LOCATION = -19;
574
575    /**
576     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
577     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
578     * the new package couldn't be installed in the specified install
579     * location because the media is not available.
580     * @hide
581     */
582    @SystemApi
583    public static final int INSTALL_FAILED_MEDIA_UNAVAILABLE = -20;
584
585    /**
586     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
587     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
588     * the new package couldn't be installed because the verification timed out.
589     * @hide
590     */
591    @SystemApi
592    public static final int INSTALL_FAILED_VERIFICATION_TIMEOUT = -21;
593
594    /**
595     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
596     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
597     * the new package couldn't be installed because the verification did not succeed.
598     * @hide
599     */
600    @SystemApi
601    public static final int INSTALL_FAILED_VERIFICATION_FAILURE = -22;
602
603    /**
604     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
605     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
606     * the package changed from what the calling program expected.
607     * @hide
608     */
609    @SystemApi
610    public static final int INSTALL_FAILED_PACKAGE_CHANGED = -23;
611
612    /**
613     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
614     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
615     * the new package is assigned a different UID than it previously held.
616     * @hide
617     */
618    public static final int INSTALL_FAILED_UID_CHANGED = -24;
619
620    /**
621     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
622     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
623     * the new package has an older version code than the currently installed package.
624     * @hide
625     */
626    public static final int INSTALL_FAILED_VERSION_DOWNGRADE = -25;
627
628    /**
629     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
630     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
631     * if the parser was given a path that is not a file, or does not end with the expected
632     * '.apk' extension.
633     * @hide
634     */
635    @SystemApi
636    public static final int INSTALL_PARSE_FAILED_NOT_APK = -100;
637
638    /**
639     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
640     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
641     * if the parser was unable to retrieve the AndroidManifest.xml file.
642     * @hide
643     */
644    @SystemApi
645    public static final int INSTALL_PARSE_FAILED_BAD_MANIFEST = -101;
646
647    /**
648     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
649     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
650     * if the parser encountered an unexpected exception.
651     * @hide
652     */
653    @SystemApi
654    public static final int INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION = -102;
655
656    /**
657     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
658     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
659     * if the parser did not find any certificates in the .apk.
660     * @hide
661     */
662    @SystemApi
663    public static final int INSTALL_PARSE_FAILED_NO_CERTIFICATES = -103;
664
665    /**
666     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
667     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
668     * if the parser found inconsistent certificates on the files in the .apk.
669     * @hide
670     */
671    @SystemApi
672    public static final int INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES = -104;
673
674    /**
675     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
676     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
677     * if the parser encountered a CertificateEncodingException in one of the
678     * files in the .apk.
679     * @hide
680     */
681    @SystemApi
682    public static final int INSTALL_PARSE_FAILED_CERTIFICATE_ENCODING = -105;
683
684    /**
685     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
686     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
687     * if the parser encountered a bad or missing package name in the manifest.
688     * @hide
689     */
690    @SystemApi
691    public static final int INSTALL_PARSE_FAILED_BAD_PACKAGE_NAME = -106;
692
693    /**
694     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
695     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
696     * if the parser encountered a bad shared user id name in the manifest.
697     * @hide
698     */
699    @SystemApi
700    public static final int INSTALL_PARSE_FAILED_BAD_SHARED_USER_ID = -107;
701
702    /**
703     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
704     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
705     * if the parser encountered some structural problem in the manifest.
706     * @hide
707     */
708    @SystemApi
709    public static final int INSTALL_PARSE_FAILED_MANIFEST_MALFORMED = -108;
710
711    /**
712     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
713     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
714     * if the parser did not find any actionable tags (instrumentation or application)
715     * in the manifest.
716     * @hide
717     */
718    @SystemApi
719    public static final int INSTALL_PARSE_FAILED_MANIFEST_EMPTY = -109;
720
721    /**
722     * Installation failed return code: this is passed to the {@link IPackageInstallObserver} by
723     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
724     * if the system failed to install the package because of system issues.
725     * @hide
726     */
727    @SystemApi
728    public static final int INSTALL_FAILED_INTERNAL_ERROR = -110;
729
730    /**
731     * Installation failed return code: this is passed to the {@link IPackageInstallObserver} by
732     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
733     * if the system failed to install the package because the user is restricted from installing
734     * apps.
735     * @hide
736     */
737    public static final int INSTALL_FAILED_USER_RESTRICTED = -111;
738
739    /**
740     * Installation failed return code: this is passed to the {@link IPackageInstallObserver} by
741     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
742     * if the system failed to install the package because it is attempting to define a
743     * permission that is already defined by some existing package.
744     *
745     * <p>The package name of the app which has already defined the permission is passed to
746     * a {@link IPackageInstallObserver2}, if any, as the {@link #EXTRA_EXISTING_PACKAGE}
747     * string extra; and the name of the permission being redefined is passed in the
748     * {@link #EXTRA_EXISTING_PERMISSION} string extra.
749     * @hide
750     */
751    public static final int INSTALL_FAILED_DUPLICATE_PERMISSION = -112;
752
753    /**
754     * Installation failed return code: this is passed to the {@link IPackageInstallObserver} by
755     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
756     * if the system failed to install the package because its packaged native code did not
757     * match any of the ABIs supported by the system.
758     *
759     * @hide
760     */
761    public static final int INSTALL_FAILED_NO_MATCHING_ABIS = -113;
762
763    /**
764     * Internal return code for NativeLibraryHelper methods to indicate that the package
765     * being processed did not contain any native code. This is placed here only so that
766     * it can belong to the same value space as the other install failure codes.
767     *
768     * @hide
769     */
770    public static final int NO_NATIVE_LIBRARIES = -114;
771
772    /**
773     * Flag parameter for {@link #deletePackage} to indicate that you don't want to delete the
774     * package's data directory.
775     *
776     * @hide
777     */
778    public static final int DELETE_KEEP_DATA = 0x00000001;
779
780    /**
781     * Flag parameter for {@link #deletePackage} to indicate that you want the
782     * package deleted for all users.
783     *
784     * @hide
785     */
786    public static final int DELETE_ALL_USERS = 0x00000002;
787
788    /**
789     * Flag parameter for {@link #deletePackage} to indicate that, if you are calling
790     * uninstall on a system that has been updated, then don't do the normal process
791     * of uninstalling the update and rolling back to the older system version (which
792     * needs to happen for all users); instead, just mark the app as uninstalled for
793     * the current user.
794     *
795     * @hide
796     */
797    public static final int DELETE_SYSTEM_APP = 0x00000004;
798
799    /**
800     * Return code for when package deletion succeeds. This is passed to the
801     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
802     * succeeded in deleting the package.
803     *
804     * @hide
805     */
806    public static final int DELETE_SUCCEEDED = 1;
807
808    /**
809     * Deletion failed return code: this is passed to the
810     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
811     * failed to delete the package for an unspecified reason.
812     *
813     * @hide
814     */
815    public static final int DELETE_FAILED_INTERNAL_ERROR = -1;
816
817    /**
818     * Deletion failed return code: this is passed to the
819     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
820     * failed to delete the package because it is the active DevicePolicy
821     * manager.
822     *
823     * @hide
824     */
825    public static final int DELETE_FAILED_DEVICE_POLICY_MANAGER = -2;
826
827    /**
828     * Deletion failed return code: this is passed to the
829     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
830     * failed to delete the package since the user is restricted.
831     *
832     * @hide
833     */
834    public static final int DELETE_FAILED_USER_RESTRICTED = -3;
835
836    /**
837     * Return code that is passed to the {@link IPackageMoveObserver} by
838     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)} when the
839     * package has been successfully moved by the system.
840     *
841     * @hide
842     */
843    public static final int MOVE_SUCCEEDED = 1;
844    /**
845     * Error code that is passed to the {@link IPackageMoveObserver} by
846     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
847     * when the package hasn't been successfully moved by the system
848     * because of insufficient memory on specified media.
849     * @hide
850     */
851    public static final int MOVE_FAILED_INSUFFICIENT_STORAGE = -1;
852
853    /**
854     * Error code that is passed to the {@link IPackageMoveObserver} by
855     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
856     * if the specified package doesn't exist.
857     * @hide
858     */
859    public static final int MOVE_FAILED_DOESNT_EXIST = -2;
860
861    /**
862     * Error code that is passed to the {@link IPackageMoveObserver} by
863     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
864     * if the specified package cannot be moved since its a system package.
865     * @hide
866     */
867    public static final int MOVE_FAILED_SYSTEM_PACKAGE = -3;
868
869    /**
870     * Error code that is passed to the {@link IPackageMoveObserver} by
871     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
872     * if the specified package cannot be moved since its forward locked.
873     * @hide
874     */
875    public static final int MOVE_FAILED_FORWARD_LOCKED = -4;
876
877    /**
878     * Error code that is passed to the {@link IPackageMoveObserver} by
879     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
880     * if the specified package cannot be moved to the specified location.
881     * @hide
882     */
883    public static final int MOVE_FAILED_INVALID_LOCATION = -5;
884
885    /**
886     * Error code that is passed to the {@link IPackageMoveObserver} by
887     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
888     * if the specified package cannot be moved to the specified location.
889     * @hide
890     */
891    public static final int MOVE_FAILED_INTERNAL_ERROR = -6;
892
893    /**
894     * Error code that is passed to the {@link IPackageMoveObserver} by
895     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)} if the
896     * specified package already has an operation pending in the
897     * {@link PackageHandler} queue.
898     *
899     * @hide
900     */
901    public static final int MOVE_FAILED_OPERATION_PENDING = -7;
902
903    /**
904     * Flag parameter for {@link #movePackage} to indicate that
905     * the package should be moved to internal storage if its
906     * been installed on external media.
907     * @hide
908     */
909    public static final int MOVE_INTERNAL = 0x00000001;
910
911    /**
912     * Flag parameter for {@link #movePackage} to indicate that
913     * the package should be moved to external media.
914     * @hide
915     */
916    public static final int MOVE_EXTERNAL_MEDIA = 0x00000002;
917
918    /**
919     * Usable by the required verifier as the {@code verificationCode} argument
920     * for {@link PackageManager#verifyPendingInstall} to indicate that it will
921     * allow the installation to proceed without any of the optional verifiers
922     * needing to vote.
923     *
924     * @hide
925     */
926    public static final int VERIFICATION_ALLOW_WITHOUT_SUFFICIENT = 2;
927
928    /**
929     * Used as the {@code verificationCode} argument for
930     * {@link PackageManager#verifyPendingInstall} to indicate that the calling
931     * package verifier allows the installation to proceed.
932     */
933    public static final int VERIFICATION_ALLOW = 1;
934
935    /**
936     * Used as the {@code verificationCode} argument for
937     * {@link PackageManager#verifyPendingInstall} to indicate the calling
938     * package verifier does not vote to allow the installation to proceed.
939     */
940    public static final int VERIFICATION_REJECT = -1;
941
942    /**
943     * Can be used as the {@code millisecondsToDelay} argument for
944     * {@link PackageManager#extendVerificationTimeout}. This is the
945     * maximum time {@code PackageManager} waits for the verification
946     * agent to return (in milliseconds).
947     */
948    public static final long MAXIMUM_VERIFICATION_TIMEOUT = 60*60*1000;
949
950    /**
951     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}: The device's
952     * audio pipeline is low-latency, more suitable for audio applications sensitive to delays or
953     * lag in sound input or output.
954     */
955    @SdkConstant(SdkConstantType.FEATURE)
956    public static final String FEATURE_AUDIO_LOW_LATENCY = "android.hardware.audio.low_latency";
957
958    /**
959     * Feature for {@link #getSystemAvailableFeatures} and
960     * {@link #hasSystemFeature}: The device is capable of communicating with
961     * other devices via Bluetooth.
962     */
963    @SdkConstant(SdkConstantType.FEATURE)
964    public static final String FEATURE_BLUETOOTH = "android.hardware.bluetooth";
965
966    /**
967     * Feature for {@link #getSystemAvailableFeatures} and
968     * {@link #hasSystemFeature}: The device is capable of communicating with
969     * other devices via Bluetooth Low Energy radio.
970     */
971    @SdkConstant(SdkConstantType.FEATURE)
972    public static final String FEATURE_BLUETOOTH_LE = "android.hardware.bluetooth_le";
973
974    /**
975     * Feature for {@link #getSystemAvailableFeatures} and
976     * {@link #hasSystemFeature}: The device has a camera facing away
977     * from the screen.
978     */
979    @SdkConstant(SdkConstantType.FEATURE)
980    public static final String FEATURE_CAMERA = "android.hardware.camera";
981
982    /**
983     * Feature for {@link #getSystemAvailableFeatures} and
984     * {@link #hasSystemFeature}: The device's camera supports auto-focus.
985     */
986    @SdkConstant(SdkConstantType.FEATURE)
987    public static final String FEATURE_CAMERA_AUTOFOCUS = "android.hardware.camera.autofocus";
988
989    /**
990     * Feature for {@link #getSystemAvailableFeatures} and
991     * {@link #hasSystemFeature}: The device has at least one camera pointing in
992     * some direction, or can support an external camera being connected to it.
993     */
994    @SdkConstant(SdkConstantType.FEATURE)
995    public static final String FEATURE_CAMERA_ANY = "android.hardware.camera.any";
996
997    /**
998     * Feature for {@link #getSystemAvailableFeatures} and
999     * {@link #hasSystemFeature}: The device can support having an external camera connected to it.
1000     * The external camera may not always be connected or available to applications to use.
1001     */
1002    @SdkConstant(SdkConstantType.FEATURE)
1003    public static final String FEATURE_CAMERA_EXTERNAL = "android.hardware.camera.external";
1004
1005    /**
1006     * Feature for {@link #getSystemAvailableFeatures} and
1007     * {@link #hasSystemFeature}: The device's camera supports flash.
1008     */
1009    @SdkConstant(SdkConstantType.FEATURE)
1010    public static final String FEATURE_CAMERA_FLASH = "android.hardware.camera.flash";
1011
1012    /**
1013     * Feature for {@link #getSystemAvailableFeatures} and
1014     * {@link #hasSystemFeature}: The device has a front facing camera.
1015     */
1016    @SdkConstant(SdkConstantType.FEATURE)
1017    public static final String FEATURE_CAMERA_FRONT = "android.hardware.camera.front";
1018
1019    /**
1020     * Feature for {@link #getSystemAvailableFeatures} and
1021     * {@link #hasSystemFeature}: The device is capable of communicating with
1022     * consumer IR devices.
1023     */
1024    @SdkConstant(SdkConstantType.FEATURE)
1025    public static final String FEATURE_CONSUMER_IR = "android.hardware.consumerir";
1026
1027    /**
1028     * Feature for {@link #getSystemAvailableFeatures} and
1029     * {@link #hasSystemFeature}: The device supports one or more methods of
1030     * reporting current location.
1031     */
1032    @SdkConstant(SdkConstantType.FEATURE)
1033    public static final String FEATURE_LOCATION = "android.hardware.location";
1034
1035    /**
1036     * Feature for {@link #getSystemAvailableFeatures} and
1037     * {@link #hasSystemFeature}: The device has a Global Positioning System
1038     * receiver and can report precise location.
1039     */
1040    @SdkConstant(SdkConstantType.FEATURE)
1041    public static final String FEATURE_LOCATION_GPS = "android.hardware.location.gps";
1042
1043    /**
1044     * Feature for {@link #getSystemAvailableFeatures} and
1045     * {@link #hasSystemFeature}: The device can report location with coarse
1046     * accuracy using a network-based geolocation system.
1047     */
1048    @SdkConstant(SdkConstantType.FEATURE)
1049    public static final String FEATURE_LOCATION_NETWORK = "android.hardware.location.network";
1050
1051    /**
1052     * Feature for {@link #getSystemAvailableFeatures} and
1053     * {@link #hasSystemFeature}: The device can record audio via a
1054     * microphone.
1055     */
1056    @SdkConstant(SdkConstantType.FEATURE)
1057    public static final String FEATURE_MICROPHONE = "android.hardware.microphone";
1058
1059    /**
1060     * Feature for {@link #getSystemAvailableFeatures} and
1061     * {@link #hasSystemFeature}: The device can communicate using Near-Field
1062     * Communications (NFC).
1063     */
1064    @SdkConstant(SdkConstantType.FEATURE)
1065    public static final String FEATURE_NFC = "android.hardware.nfc";
1066
1067    /**
1068     * Feature for {@link #getSystemAvailableFeatures} and
1069     * {@link #hasSystemFeature}: The device supports host-
1070     * based NFC card emulation.
1071     *
1072     * TODO remove when depending apps have moved to new constant.
1073     * @hide
1074     * @deprecated
1075     */
1076    @Deprecated
1077    @SdkConstant(SdkConstantType.FEATURE)
1078    public static final String FEATURE_NFC_HCE = "android.hardware.nfc.hce";
1079
1080    /**
1081     * Feature for {@link #getSystemAvailableFeatures} and
1082     * {@link #hasSystemFeature}: The device supports host-
1083     * based NFC card emulation.
1084     */
1085    @SdkConstant(SdkConstantType.FEATURE)
1086    public static final String FEATURE_NFC_HOST_CARD_EMULATION = "android.hardware.nfc.hce";
1087
1088    /**
1089     * Feature for {@link #getSystemAvailableFeatures} and
1090     * {@link #hasSystemFeature}: The device includes an accelerometer.
1091     */
1092    @SdkConstant(SdkConstantType.FEATURE)
1093    public static final String FEATURE_SENSOR_ACCELEROMETER = "android.hardware.sensor.accelerometer";
1094
1095    /**
1096     * Feature for {@link #getSystemAvailableFeatures} and
1097     * {@link #hasSystemFeature}: The device includes a barometer (air
1098     * pressure sensor.)
1099     */
1100    @SdkConstant(SdkConstantType.FEATURE)
1101    public static final String FEATURE_SENSOR_BAROMETER = "android.hardware.sensor.barometer";
1102
1103    /**
1104     * Feature for {@link #getSystemAvailableFeatures} and
1105     * {@link #hasSystemFeature}: The device includes a magnetometer (compass).
1106     */
1107    @SdkConstant(SdkConstantType.FEATURE)
1108    public static final String FEATURE_SENSOR_COMPASS = "android.hardware.sensor.compass";
1109
1110    /**
1111     * Feature for {@link #getSystemAvailableFeatures} and
1112     * {@link #hasSystemFeature}: The device includes a gyroscope.
1113     */
1114    @SdkConstant(SdkConstantType.FEATURE)
1115    public static final String FEATURE_SENSOR_GYROSCOPE = "android.hardware.sensor.gyroscope";
1116
1117    /**
1118     * Feature for {@link #getSystemAvailableFeatures} and
1119     * {@link #hasSystemFeature}: The device includes a light sensor.
1120     */
1121    @SdkConstant(SdkConstantType.FEATURE)
1122    public static final String FEATURE_SENSOR_LIGHT = "android.hardware.sensor.light";
1123
1124    /**
1125     * Feature for {@link #getSystemAvailableFeatures} and
1126     * {@link #hasSystemFeature}: The device includes a proximity sensor.
1127     */
1128    @SdkConstant(SdkConstantType.FEATURE)
1129    public static final String FEATURE_SENSOR_PROXIMITY = "android.hardware.sensor.proximity";
1130
1131    /**
1132     * Feature for {@link #getSystemAvailableFeatures} and
1133     * {@link #hasSystemFeature}: The device includes a hardware step counter.
1134     */
1135    @SdkConstant(SdkConstantType.FEATURE)
1136    public static final String FEATURE_SENSOR_STEP_COUNTER = "android.hardware.sensor.stepcounter";
1137
1138    /**
1139     * Feature for {@link #getSystemAvailableFeatures} and
1140     * {@link #hasSystemFeature}: The device includes a hardware step detector.
1141     */
1142    @SdkConstant(SdkConstantType.FEATURE)
1143    public static final String FEATURE_SENSOR_STEP_DETECTOR = "android.hardware.sensor.stepdetector";
1144
1145    /**
1146     * Feature for {@link #getSystemAvailableFeatures} and
1147     * {@link #hasSystemFeature}: The device includes a heart rate monitor.
1148     */
1149    @SdkConstant(SdkConstantType.FEATURE)
1150    public static final String FEATURE_SENSOR_HEART_RATE = "android.hardware.sensor.heartrate";
1151
1152    /**
1153     * Feature for {@link #getSystemAvailableFeatures} and
1154     * {@link #hasSystemFeature}: The device has a telephony radio with data
1155     * communication support.
1156     */
1157    @SdkConstant(SdkConstantType.FEATURE)
1158    public static final String FEATURE_TELEPHONY = "android.hardware.telephony";
1159
1160    /**
1161     * Feature for {@link #getSystemAvailableFeatures} and
1162     * {@link #hasSystemFeature}: The device has a CDMA telephony stack.
1163     */
1164    @SdkConstant(SdkConstantType.FEATURE)
1165    public static final String FEATURE_TELEPHONY_CDMA = "android.hardware.telephony.cdma";
1166
1167    /**
1168     * Feature for {@link #getSystemAvailableFeatures} and
1169     * {@link #hasSystemFeature}: The device has a GSM telephony stack.
1170     */
1171    @SdkConstant(SdkConstantType.FEATURE)
1172    public static final String FEATURE_TELEPHONY_GSM = "android.hardware.telephony.gsm";
1173
1174    /**
1175     * Feature for {@link #getSystemAvailableFeatures} and
1176     * {@link #hasSystemFeature}: The device supports connecting to USB devices
1177     * as the USB host.
1178     */
1179    @SdkConstant(SdkConstantType.FEATURE)
1180    public static final String FEATURE_USB_HOST = "android.hardware.usb.host";
1181
1182    /**
1183     * Feature for {@link #getSystemAvailableFeatures} and
1184     * {@link #hasSystemFeature}: The device supports connecting to USB accessories.
1185     */
1186    @SdkConstant(SdkConstantType.FEATURE)
1187    public static final String FEATURE_USB_ACCESSORY = "android.hardware.usb.accessory";
1188
1189    /**
1190     * Feature for {@link #getSystemAvailableFeatures} and
1191     * {@link #hasSystemFeature}: The SIP API is enabled on the device.
1192     */
1193    @SdkConstant(SdkConstantType.FEATURE)
1194    public static final String FEATURE_SIP = "android.software.sip";
1195
1196    /**
1197     * Feature for {@link #getSystemAvailableFeatures} and
1198     * {@link #hasSystemFeature}: The device supports SIP-based VOIP.
1199     */
1200    @SdkConstant(SdkConstantType.FEATURE)
1201    public static final String FEATURE_SIP_VOIP = "android.software.sip.voip";
1202
1203    /**
1204     * Feature for {@link #getSystemAvailableFeatures} and
1205     * {@link #hasSystemFeature}: The device's display has a touch screen.
1206     */
1207    @SdkConstant(SdkConstantType.FEATURE)
1208    public static final String FEATURE_TOUCHSCREEN = "android.hardware.touchscreen";
1209
1210
1211    /**
1212     * Feature for {@link #getSystemAvailableFeatures} and
1213     * {@link #hasSystemFeature}: The device's touch screen supports
1214     * multitouch sufficient for basic two-finger gesture detection.
1215     */
1216    @SdkConstant(SdkConstantType.FEATURE)
1217    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH = "android.hardware.touchscreen.multitouch";
1218
1219    /**
1220     * Feature for {@link #getSystemAvailableFeatures} and
1221     * {@link #hasSystemFeature}: The device's touch screen is capable of
1222     * tracking two or more fingers fully independently.
1223     */
1224    @SdkConstant(SdkConstantType.FEATURE)
1225    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT = "android.hardware.touchscreen.multitouch.distinct";
1226
1227    /**
1228     * Feature for {@link #getSystemAvailableFeatures} and
1229     * {@link #hasSystemFeature}: The device's touch screen is capable of
1230     * tracking a full hand of fingers fully independently -- that is, 5 or
1231     * more simultaneous independent pointers.
1232     */
1233    @SdkConstant(SdkConstantType.FEATURE)
1234    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND = "android.hardware.touchscreen.multitouch.jazzhand";
1235
1236    /**
1237     * Feature for {@link #getSystemAvailableFeatures} and
1238     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1239     * does support touch emulation for basic events. For instance, the
1240     * device might use a mouse or remote control to drive a cursor, and
1241     * emulate basic touch pointer events like down, up, drag, etc. All
1242     * devices that support android.hardware.touchscreen or a sub-feature are
1243     * presumed to also support faketouch.
1244     */
1245    @SdkConstant(SdkConstantType.FEATURE)
1246    public static final String FEATURE_FAKETOUCH = "android.hardware.faketouch";
1247
1248    /**
1249     * Feature for {@link #getSystemAvailableFeatures} and
1250     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1251     * does support touch emulation for basic events that supports distinct
1252     * tracking of two or more fingers.  This is an extension of
1253     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1254     * that unlike a distinct multitouch screen as defined by
1255     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT}, these kinds of input
1256     * devices will not actually provide full two-finger gestures since the
1257     * input is being transformed to cursor movement on the screen.  That is,
1258     * single finger gestures will move a cursor; two-finger swipes will
1259     * result in single-finger touch events; other two-finger gestures will
1260     * result in the corresponding two-finger touch event.
1261     */
1262    @SdkConstant(SdkConstantType.FEATURE)
1263    public static final String FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT = "android.hardware.faketouch.multitouch.distinct";
1264
1265    /**
1266     * Feature for {@link #getSystemAvailableFeatures} and
1267     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1268     * does support touch emulation for basic events that supports tracking
1269     * a hand of fingers (5 or more fingers) fully independently.
1270     * This is an extension of
1271     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1272     * that unlike a multitouch screen as defined by
1273     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND}, not all two finger
1274     * gestures can be detected due to the limitations described for
1275     * {@link #FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT}.
1276     */
1277    @SdkConstant(SdkConstantType.FEATURE)
1278    public static final String FEATURE_FAKETOUCH_MULTITOUCH_JAZZHAND = "android.hardware.faketouch.multitouch.jazzhand";
1279
1280    /**
1281     * Feature for {@link #getSystemAvailableFeatures} and
1282     * {@link #hasSystemFeature}: The device supports portrait orientation
1283     * screens.  For backwards compatibility, you can assume that if neither
1284     * this nor {@link #FEATURE_SCREEN_LANDSCAPE} is set then the device supports
1285     * both portrait and landscape.
1286     */
1287    @SdkConstant(SdkConstantType.FEATURE)
1288    public static final String FEATURE_SCREEN_PORTRAIT = "android.hardware.screen.portrait";
1289
1290    /**
1291     * Feature for {@link #getSystemAvailableFeatures} and
1292     * {@link #hasSystemFeature}: The device supports landscape orientation
1293     * screens.  For backwards compatibility, you can assume that if neither
1294     * this nor {@link #FEATURE_SCREEN_PORTRAIT} is set then the device supports
1295     * both portrait and landscape.
1296     */
1297    @SdkConstant(SdkConstantType.FEATURE)
1298    public static final String FEATURE_SCREEN_LANDSCAPE = "android.hardware.screen.landscape";
1299
1300    /**
1301     * Feature for {@link #getSystemAvailableFeatures} and
1302     * {@link #hasSystemFeature}: The device supports live wallpapers.
1303     */
1304    @SdkConstant(SdkConstantType.FEATURE)
1305    public static final String FEATURE_LIVE_WALLPAPER = "android.software.live_wallpaper";
1306    /**
1307     * Feature for {@link #getSystemAvailableFeatures} and
1308     * {@link #hasSystemFeature}: The device supports app widgets.
1309     */
1310    @SdkConstant(SdkConstantType.FEATURE)
1311    public static final String FEATURE_APP_WIDGETS = "android.software.app_widgets";
1312
1313    /**
1314     * @hide
1315     * Feature for {@link #getSystemAvailableFeatures} and
1316     * {@link #hasSystemFeature}: The device supports
1317     * {@link android.service.voice.VoiceInteractionService} and
1318     * {@link android.app.VoiceInteractor}.
1319     */
1320    @SdkConstant(SdkConstantType.FEATURE)
1321    public static final String FEATURE_VOICE_RECOGNIZERS = "android.software.voice_recognizers";
1322
1323
1324    /**
1325     * Feature for {@link #getSystemAvailableFeatures} and
1326     * {@link #hasSystemFeature}: The device supports a home screen that is replaceable
1327     * by third party applications.
1328     */
1329    @SdkConstant(SdkConstantType.FEATURE)
1330    public static final String FEATURE_HOME_SCREEN = "android.software.home_screen";
1331
1332    /**
1333     * Feature for {@link #getSystemAvailableFeatures} and
1334     * {@link #hasSystemFeature}: The device supports adding new input methods implemented
1335     * with the {@link android.inputmethodservice.InputMethodService} API.
1336     */
1337    @SdkConstant(SdkConstantType.FEATURE)
1338    public static final String FEATURE_INPUT_METHODS = "android.software.input_methods";
1339
1340    /**
1341     * Feature for {@link #getSystemAvailableFeatures} and
1342     * {@link #hasSystemFeature}: The device supports device policy enforcement via device admins.
1343     */
1344    @SdkConstant(SdkConstantType.FEATURE)
1345    public static final String FEATURE_DEVICE_ADMIN = "android.software.device_admin";
1346
1347    /**
1348     * Feature for {@link #getSystemAvailableFeatures} and
1349     * {@link #hasSystemFeature}: The device supports leanback UI. This is
1350     * typically used in a living room television experience, but is a software
1351     * feature unlike {@link #FEATURE_TELEVISION}. Devices running with this
1352     * feature will use resources associated with the "television" UI mode.
1353     */
1354    @SdkConstant(SdkConstantType.FEATURE)
1355    public static final String FEATURE_LEANBACK = "android.software.leanback";
1356
1357    /**
1358     * Feature for {@link #getSystemAvailableFeatures} and
1359     * {@link #hasSystemFeature}: The device supports only leanback UI. Only
1360     * applications designed for this experience should be run, though this is
1361     * not enforced by the system.
1362     * @hide
1363     */
1364    @SdkConstant(SdkConstantType.FEATURE)
1365    public static final String FEATURE_LEANBACK_ONLY = "android.software.leanback_only";
1366
1367    /**
1368     * Feature for {@link #getSystemAvailableFeatures} and
1369     * {@link #hasSystemFeature}: The device supports WiFi (802.11) networking.
1370     */
1371    @SdkConstant(SdkConstantType.FEATURE)
1372    public static final String FEATURE_WIFI = "android.hardware.wifi";
1373
1374    /**
1375     * Feature for {@link #getSystemAvailableFeatures} and
1376     * {@link #hasSystemFeature}: The device supports Wi-Fi Direct networking.
1377     */
1378    @SdkConstant(SdkConstantType.FEATURE)
1379    public static final String FEATURE_WIFI_DIRECT = "android.hardware.wifi.direct";
1380
1381    /**
1382     * Feature for {@link #getSystemAvailableFeatures} and
1383     * {@link #hasSystemFeature}: This is a device dedicated to showing UI
1384     * on a television.  Television here is defined to be a typical living
1385     * room television experience: displayed on a big screen, where the user
1386     * is sitting far away from it, and the dominant form of input will be
1387     * something like a DPAD, not through touch or mouse.
1388     * @deprecated use {@link #FEATURE_LEANBACK} instead.
1389     */
1390    @Deprecated
1391    @SdkConstant(SdkConstantType.FEATURE)
1392    public static final String FEATURE_TELEVISION = "android.hardware.type.television";
1393
1394    /**
1395     * Feature for {@link #getSystemAvailableFeatures} and
1396     * {@link #hasSystemFeature}: This is a device dedicated to showing UI
1397     * on a watch. A watch here is defined to be a device worn on the body, perhaps on
1398     * the wrist. The user is very close when interacting with the device.
1399     */
1400    @SdkConstant(SdkConstantType.FEATURE)
1401    public static final String FEATURE_WATCH = "android.hardware.type.watch";
1402
1403    /**
1404     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}:
1405     * The device supports printing.
1406     */
1407    @SdkConstant(SdkConstantType.FEATURE)
1408    public static final String FEATURE_PRINTING = "android.software.print";
1409
1410    /**
1411     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}:
1412     * The device can perform backup and restore operations on installed applications.
1413     */
1414    @SdkConstant(SdkConstantType.FEATURE)
1415    public static final String FEATURE_BACKUP = "android.software.backup";
1416
1417    /**
1418     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}:
1419     * The device supports managed profiles for enterprise users.
1420     */
1421    @SdkConstant(SdkConstantType.FEATURE)
1422    public static final String FEATURE_MANAGED_PROFILES = "android.software.managed_profiles";
1423
1424    /**
1425     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}:
1426     * The device has a full implementation of the android.webkit.* APIs. Devices
1427     * lacking this feature will not have a functioning WebView implementation.
1428     */
1429    @SdkConstant(SdkConstantType.FEATURE)
1430    public static final String FEATURE_WEBVIEW = "android.software.webview";
1431
1432    /**
1433     * Action to external storage service to clean out removed apps.
1434     * @hide
1435     */
1436    public static final String ACTION_CLEAN_EXTERNAL_STORAGE
1437            = "android.content.pm.CLEAN_EXTERNAL_STORAGE";
1438
1439    /**
1440     * Extra field name for the URI to a verification file. Passed to a package
1441     * verifier.
1442     *
1443     * @hide
1444     */
1445    public static final String EXTRA_VERIFICATION_URI = "android.content.pm.extra.VERIFICATION_URI";
1446
1447    /**
1448     * Extra field name for the ID of a package pending verification. Passed to
1449     * a package verifier and is used to call back to
1450     * {@link PackageManager#verifyPendingInstall(int, int)}
1451     */
1452    public static final String EXTRA_VERIFICATION_ID = "android.content.pm.extra.VERIFICATION_ID";
1453
1454    /**
1455     * Extra field name for the package identifier which is trying to install
1456     * the package.
1457     *
1458     * @hide
1459     */
1460    public static final String EXTRA_VERIFICATION_INSTALLER_PACKAGE
1461            = "android.content.pm.extra.VERIFICATION_INSTALLER_PACKAGE";
1462
1463    /**
1464     * Extra field name for the requested install flags for a package pending
1465     * verification. Passed to a package verifier.
1466     *
1467     * @hide
1468     */
1469    public static final String EXTRA_VERIFICATION_INSTALL_FLAGS
1470            = "android.content.pm.extra.VERIFICATION_INSTALL_FLAGS";
1471
1472    /**
1473     * Extra field name for the uid of who is requesting to install
1474     * the package.
1475     *
1476     * @hide
1477     */
1478    public static final String EXTRA_VERIFICATION_INSTALLER_UID
1479            = "android.content.pm.extra.VERIFICATION_INSTALLER_UID";
1480
1481    /**
1482     * Extra field name for the package name of a package pending verification.
1483     *
1484     * @hide
1485     */
1486    public static final String EXTRA_VERIFICATION_PACKAGE_NAME
1487            = "android.content.pm.extra.VERIFICATION_PACKAGE_NAME";
1488    /**
1489     * Extra field name for the result of a verification, either
1490     * {@link #VERIFICATION_ALLOW}, or {@link #VERIFICATION_REJECT}.
1491     * Passed to package verifiers after a package is verified.
1492     */
1493    public static final String EXTRA_VERIFICATION_RESULT
1494            = "android.content.pm.extra.VERIFICATION_RESULT";
1495
1496    /**
1497     * Extra field name for the version code of a package pending verification.
1498     *
1499     * @hide
1500     */
1501    public static final String EXTRA_VERIFICATION_VERSION_CODE
1502            = "android.content.pm.extra.VERIFICATION_VERSION_CODE";
1503
1504    /**
1505     * The action used to request that the user approve a permission request
1506     * from the application.
1507     *
1508     * @hide
1509     */
1510    public static final String ACTION_REQUEST_PERMISSION
1511            = "android.content.pm.action.REQUEST_PERMISSION";
1512
1513    /**
1514     * Extra field name for the list of permissions, which the user must approve.
1515     *
1516     * @hide
1517     */
1518    public static final String EXTRA_REQUEST_PERMISSION_PERMISSION_LIST
1519            = "android.content.pm.extra.PERMISSION_LIST";
1520
1521    /**
1522     * String extra for {@link IPackageInstallObserver2} in the 'extras' Bundle in case of
1523     * {@link #INSTALL_FAILED_DUPLICATE_PERMISSION}.  This extra names the package which provides
1524     * the existing definition for the permission.
1525     * @hide
1526     */
1527    public static final String EXTRA_FAILURE_EXISTING_PACKAGE
1528            = "android.content.pm.extra.FAILURE_EXISTING_PACKAGE";
1529
1530    /**
1531     * String extra for {@link IPackageInstallObserver2} in the 'extras' Bundle in case of
1532     * {@link #INSTALL_FAILED_DUPLICATE_PERMISSION}.  This extra names the permission that is
1533     * being redundantly defined by the package being installed.
1534     * @hide
1535     */
1536    public static final String EXTRA_FAILURE_EXISTING_PERMISSION
1537            = "android.content.pm.extra.FAILURE_EXISTING_PERMISSION";
1538
1539    /**
1540     * Retrieve overall information about an application package that is
1541     * installed on the system.
1542     * <p>
1543     * Throws {@link NameNotFoundException} if a package with the given name can
1544     * not be found on the system.
1545     *
1546     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1547     *            desired package.
1548     * @param flags Additional option flags. Use any combination of
1549     *            {@link #GET_ACTIVITIES}, {@link #GET_GIDS},
1550     *            {@link #GET_CONFIGURATIONS}, {@link #GET_INSTRUMENTATION},
1551     *            {@link #GET_PERMISSIONS}, {@link #GET_PROVIDERS},
1552     *            {@link #GET_RECEIVERS}, {@link #GET_SERVICES},
1553     *            {@link #GET_SIGNATURES}, {@link #GET_UNINSTALLED_PACKAGES} to
1554     *            modify the data returned.
1555     * @return Returns a PackageInfo object containing information about the
1556     *         package. If flag GET_UNINSTALLED_PACKAGES is set and if the
1557     *         package is not found in the list of installed applications, the
1558     *         package information is retrieved from the list of uninstalled
1559     *         applications (which includes installed applications as well as
1560     *         applications with data directory i.e. applications which had been
1561     *         deleted with {@code DONT_DELETE_DATA} flag set).
1562     * @see #GET_ACTIVITIES
1563     * @see #GET_GIDS
1564     * @see #GET_CONFIGURATIONS
1565     * @see #GET_INSTRUMENTATION
1566     * @see #GET_PERMISSIONS
1567     * @see #GET_PROVIDERS
1568     * @see #GET_RECEIVERS
1569     * @see #GET_SERVICES
1570     * @see #GET_SIGNATURES
1571     * @see #GET_UNINSTALLED_PACKAGES
1572     */
1573    public abstract PackageInfo getPackageInfo(String packageName, int flags)
1574            throws NameNotFoundException;
1575
1576    /**
1577     * Map from the current package names in use on the device to whatever
1578     * the current canonical name of that package is.
1579     * @param names Array of current names to be mapped.
1580     * @return Returns an array of the same size as the original, containing
1581     * the canonical name for each package.
1582     */
1583    public abstract String[] currentToCanonicalPackageNames(String[] names);
1584
1585    /**
1586     * Map from a packages canonical name to the current name in use on the device.
1587     * @param names Array of new names to be mapped.
1588     * @return Returns an array of the same size as the original, containing
1589     * the current name for each package.
1590     */
1591    public abstract String[] canonicalToCurrentPackageNames(String[] names);
1592
1593    /**
1594     * Return a "good" intent to launch a front-door activity in a package,
1595     * for use for example to implement an "open" button when browsing through
1596     * packages.  The current implementation will look first for a main
1597     * activity in the category {@link Intent#CATEGORY_INFO}, next for a
1598     * main activity in the category {@link Intent#CATEGORY_LAUNCHER}, or return
1599     * null if neither are found.
1600     *
1601     * <p>Throws {@link NameNotFoundException} if a package with the given
1602     * name cannot be found on the system.
1603     *
1604     * @param packageName The name of the package to inspect.
1605     *
1606     * @return Returns either a fully-qualified Intent that can be used to
1607     * launch the main activity in the package, or null if the package does
1608     * not contain such an activity.
1609     */
1610    public abstract Intent getLaunchIntentForPackage(String packageName);
1611
1612    /**
1613     * Return a "good" intent to launch a front-door Leanback activity in a
1614     * package, for use for example to implement an "open" button when browsing
1615     * through packages. The current implementation will look for a main
1616     * activity in the category {@link Intent#CATEGORY_LEANBACK_LAUNCHER}, or
1617     * return null if no main leanback activities are found.
1618     * <p>
1619     * Throws {@link NameNotFoundException} if a package with the given name
1620     * cannot be found on the system.
1621     *
1622     * @param packageName The name of the package to inspect.
1623     * @return Returns either a fully-qualified Intent that can be used to launch
1624     *         the main Leanback activity in the package, or null if the package
1625     *         does not contain such an activity.
1626     */
1627    public abstract Intent getLeanbackLaunchIntentForPackage(String packageName);
1628
1629    /**
1630     * Return an array of all of the secondary group-ids that have been assigned
1631     * to a package.
1632     * <p>
1633     * Throws {@link NameNotFoundException} if a package with the given name
1634     * cannot be found on the system.
1635     *
1636     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1637     *            desired package.
1638     * @return Returns an int array of the assigned gids, or null if there are
1639     *         none.
1640     */
1641    public abstract int[] getPackageGids(String packageName)
1642            throws NameNotFoundException;
1643
1644    /**
1645     * @hide Return the uid associated with the given package name for the
1646     * given user.
1647     *
1648     * <p>Throws {@link NameNotFoundException} if a package with the given
1649     * name can not be found on the system.
1650     *
1651     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1652     *                    desired package.
1653     * @param userHandle The user handle identifier to look up the package under.
1654     *
1655     * @return Returns an integer uid who owns the given package name.
1656     */
1657    public abstract int getPackageUid(String packageName, int userHandle)
1658            throws NameNotFoundException;
1659
1660    /**
1661     * Retrieve all of the information we know about a particular permission.
1662     *
1663     * <p>Throws {@link NameNotFoundException} if a permission with the given
1664     * name cannot be found on the system.
1665     *
1666     * @param name The fully qualified name (i.e. com.google.permission.LOGIN)
1667     *             of the permission you are interested in.
1668     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1669     * retrieve any meta-data associated with the permission.
1670     *
1671     * @return Returns a {@link PermissionInfo} containing information about the
1672     *         permission.
1673     */
1674    public abstract PermissionInfo getPermissionInfo(String name, int flags)
1675            throws NameNotFoundException;
1676
1677    /**
1678     * Query for all of the permissions associated with a particular group.
1679     *
1680     * <p>Throws {@link NameNotFoundException} if the given group does not
1681     * exist.
1682     *
1683     * @param group The fully qualified name (i.e. com.google.permission.LOGIN)
1684     *             of the permission group you are interested in.  Use null to
1685     *             find all of the permissions not associated with a group.
1686     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1687     * retrieve any meta-data associated with the permissions.
1688     *
1689     * @return Returns a list of {@link PermissionInfo} containing information
1690     * about all of the permissions in the given group.
1691     */
1692    public abstract List<PermissionInfo> queryPermissionsByGroup(String group,
1693            int flags) throws NameNotFoundException;
1694
1695    /**
1696     * Retrieve all of the information we know about a particular group of
1697     * permissions.
1698     *
1699     * <p>Throws {@link NameNotFoundException} if a permission group with the given
1700     * name cannot be found on the system.
1701     *
1702     * @param name The fully qualified name (i.e. com.google.permission_group.APPS)
1703     *             of the permission you are interested in.
1704     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1705     * retrieve any meta-data associated with the permission group.
1706     *
1707     * @return Returns a {@link PermissionGroupInfo} containing information
1708     * about the permission.
1709     */
1710    public abstract PermissionGroupInfo getPermissionGroupInfo(String name,
1711            int flags) throws NameNotFoundException;
1712
1713    /**
1714     * Retrieve all of the known permission groups in the system.
1715     *
1716     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1717     * retrieve any meta-data associated with the permission group.
1718     *
1719     * @return Returns a list of {@link PermissionGroupInfo} containing
1720     * information about all of the known permission groups.
1721     */
1722    public abstract List<PermissionGroupInfo> getAllPermissionGroups(int flags);
1723
1724    /**
1725     * Retrieve all of the information we know about a particular
1726     * package/application.
1727     *
1728     * <p>Throws {@link NameNotFoundException} if an application with the given
1729     * package name cannot be found on the system.
1730     *
1731     * @param packageName The full name (i.e. com.google.apps.contacts) of an
1732     *                    application.
1733     * @param flags Additional option flags. Use any combination of
1734     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1735     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1736     *
1737     * @return  {@link ApplicationInfo} Returns ApplicationInfo object containing
1738     *         information about the package.
1739     *         If flag GET_UNINSTALLED_PACKAGES is set and  if the package is not
1740     *         found in the list of installed applications,
1741     *         the application information is retrieved from the
1742     *         list of uninstalled applications(which includes
1743     *         installed applications as well as applications
1744     *         with data directory ie applications which had been
1745     *         deleted with {@code DONT_DELETE_DATA} flag set).
1746     *
1747     * @see #GET_META_DATA
1748     * @see #GET_SHARED_LIBRARY_FILES
1749     * @see #GET_UNINSTALLED_PACKAGES
1750     */
1751    public abstract ApplicationInfo getApplicationInfo(String packageName,
1752            int flags) throws NameNotFoundException;
1753
1754    /**
1755     * Retrieve all of the information we know about a particular activity
1756     * class.
1757     *
1758     * <p>Throws {@link NameNotFoundException} if an activity with the given
1759     * class name cannot be found on the system.
1760     *
1761     * @param component The full component name (i.e.
1762     * com.google.apps.contacts/com.google.apps.contacts.ContactsList) of an Activity
1763     * class.
1764     * @param flags Additional option flags. Use any combination of
1765     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1766     * to modify the data (in ApplicationInfo) returned.
1767     *
1768     * @return {@link ActivityInfo} containing information about the activity.
1769     *
1770     * @see #GET_INTENT_FILTERS
1771     * @see #GET_META_DATA
1772     * @see #GET_SHARED_LIBRARY_FILES
1773     */
1774    public abstract ActivityInfo getActivityInfo(ComponentName component,
1775            int flags) throws NameNotFoundException;
1776
1777    /**
1778     * Retrieve all of the information we know about a particular receiver
1779     * class.
1780     *
1781     * <p>Throws {@link NameNotFoundException} if a receiver with the given
1782     * class name cannot be found on the system.
1783     *
1784     * @param component The full component name (i.e.
1785     * com.google.apps.calendar/com.google.apps.calendar.CalendarAlarm) of a Receiver
1786     * class.
1787     * @param flags Additional option flags.  Use any combination of
1788     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1789     * to modify the data returned.
1790     *
1791     * @return {@link ActivityInfo} containing information about the receiver.
1792     *
1793     * @see #GET_INTENT_FILTERS
1794     * @see #GET_META_DATA
1795     * @see #GET_SHARED_LIBRARY_FILES
1796     */
1797    public abstract ActivityInfo getReceiverInfo(ComponentName component,
1798            int flags) throws NameNotFoundException;
1799
1800    /**
1801     * Retrieve all of the information we know about a particular service
1802     * class.
1803     *
1804     * <p>Throws {@link NameNotFoundException} if a service with the given
1805     * class name cannot be found on the system.
1806     *
1807     * @param component The full component name (i.e.
1808     * com.google.apps.media/com.google.apps.media.BackgroundPlayback) of a Service
1809     * class.
1810     * @param flags Additional option flags.  Use any combination of
1811     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1812     * to modify the data returned.
1813     *
1814     * @return ServiceInfo containing information about the service.
1815     *
1816     * @see #GET_META_DATA
1817     * @see #GET_SHARED_LIBRARY_FILES
1818     */
1819    public abstract ServiceInfo getServiceInfo(ComponentName component,
1820            int flags) throws NameNotFoundException;
1821
1822    /**
1823     * Retrieve all of the information we know about a particular content
1824     * provider class.
1825     *
1826     * <p>Throws {@link NameNotFoundException} if a provider with the given
1827     * class name cannot be found on the system.
1828     *
1829     * @param component The full component name (i.e.
1830     * com.google.providers.media/com.google.providers.media.MediaProvider) of a
1831     * ContentProvider class.
1832     * @param flags Additional option flags.  Use any combination of
1833     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1834     * to modify the data returned.
1835     *
1836     * @return ProviderInfo containing information about the service.
1837     *
1838     * @see #GET_META_DATA
1839     * @see #GET_SHARED_LIBRARY_FILES
1840     */
1841    public abstract ProviderInfo getProviderInfo(ComponentName component,
1842            int flags) throws NameNotFoundException;
1843
1844    /**
1845     * Return a List of all packages that are installed
1846     * on the device.
1847     *
1848     * @param flags Additional option flags. Use any combination of
1849     * {@link #GET_ACTIVITIES},
1850     * {@link #GET_GIDS},
1851     * {@link #GET_CONFIGURATIONS},
1852     * {@link #GET_INSTRUMENTATION},
1853     * {@link #GET_PERMISSIONS},
1854     * {@link #GET_PROVIDERS},
1855     * {@link #GET_RECEIVERS},
1856     * {@link #GET_SERVICES},
1857     * {@link #GET_SIGNATURES},
1858     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1859     *
1860     * @return A List of PackageInfo objects, one for each package that is
1861     *         installed on the device.  In the unlikely case of there being no
1862     *         installed packages, an empty list is returned.
1863     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1864     *         applications including those deleted with {@code DONT_DELETE_DATA}
1865     *         (partially installed apps with data directory) will be returned.
1866     *
1867     * @see #GET_ACTIVITIES
1868     * @see #GET_GIDS
1869     * @see #GET_CONFIGURATIONS
1870     * @see #GET_INSTRUMENTATION
1871     * @see #GET_PERMISSIONS
1872     * @see #GET_PROVIDERS
1873     * @see #GET_RECEIVERS
1874     * @see #GET_SERVICES
1875     * @see #GET_SIGNATURES
1876     * @see #GET_UNINSTALLED_PACKAGES
1877     */
1878    public abstract List<PackageInfo> getInstalledPackages(int flags);
1879
1880    /**
1881     * Return a List of all installed packages that are currently
1882     * holding any of the given permissions.
1883     *
1884     * @param flags Additional option flags. Use any combination of
1885     * {@link #GET_ACTIVITIES},
1886     * {@link #GET_GIDS},
1887     * {@link #GET_CONFIGURATIONS},
1888     * {@link #GET_INSTRUMENTATION},
1889     * {@link #GET_PERMISSIONS},
1890     * {@link #GET_PROVIDERS},
1891     * {@link #GET_RECEIVERS},
1892     * {@link #GET_SERVICES},
1893     * {@link #GET_SIGNATURES},
1894     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1895     *
1896     * @return Returns a List of PackageInfo objects, one for each installed
1897     * application that is holding any of the permissions that were provided.
1898     *
1899     * @see #GET_ACTIVITIES
1900     * @see #GET_GIDS
1901     * @see #GET_CONFIGURATIONS
1902     * @see #GET_INSTRUMENTATION
1903     * @see #GET_PERMISSIONS
1904     * @see #GET_PROVIDERS
1905     * @see #GET_RECEIVERS
1906     * @see #GET_SERVICES
1907     * @see #GET_SIGNATURES
1908     * @see #GET_UNINSTALLED_PACKAGES
1909     */
1910    public abstract List<PackageInfo> getPackagesHoldingPermissions(
1911            String[] permissions, int flags);
1912
1913    /**
1914     * Return a List of all packages that are installed on the device, for a specific user.
1915     * Requesting a list of installed packages for another user
1916     * will require the permission INTERACT_ACROSS_USERS_FULL.
1917     * @param flags Additional option flags. Use any combination of
1918     * {@link #GET_ACTIVITIES},
1919     * {@link #GET_GIDS},
1920     * {@link #GET_CONFIGURATIONS},
1921     * {@link #GET_INSTRUMENTATION},
1922     * {@link #GET_PERMISSIONS},
1923     * {@link #GET_PROVIDERS},
1924     * {@link #GET_RECEIVERS},
1925     * {@link #GET_SERVICES},
1926     * {@link #GET_SIGNATURES},
1927     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1928     * @param userId The user for whom the installed packages are to be listed
1929     *
1930     * @return A List of PackageInfo objects, one for each package that is
1931     *         installed on the device.  In the unlikely case of there being no
1932     *         installed packages, an empty list is returned.
1933     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1934     *         applications including those deleted with {@code DONT_DELETE_DATA}
1935     *         (partially installed apps with data directory) will be returned.
1936     *
1937     * @see #GET_ACTIVITIES
1938     * @see #GET_GIDS
1939     * @see #GET_CONFIGURATIONS
1940     * @see #GET_INSTRUMENTATION
1941     * @see #GET_PERMISSIONS
1942     * @see #GET_PROVIDERS
1943     * @see #GET_RECEIVERS
1944     * @see #GET_SERVICES
1945     * @see #GET_SIGNATURES
1946     * @see #GET_UNINSTALLED_PACKAGES
1947     *
1948     * @hide
1949     */
1950    public abstract List<PackageInfo> getInstalledPackages(int flags, int userId);
1951
1952    /**
1953     * Check whether a particular package has been granted a particular
1954     * permission.
1955     *
1956     * @param permName The name of the permission you are checking for,
1957     * @param pkgName The name of the package you are checking against.
1958     *
1959     * @return If the package has the permission, PERMISSION_GRANTED is
1960     * returned.  If it does not have the permission, PERMISSION_DENIED
1961     * is returned.
1962     *
1963     * @see #PERMISSION_GRANTED
1964     * @see #PERMISSION_DENIED
1965     */
1966    public abstract int checkPermission(String permName, String pkgName);
1967
1968    /**
1969     * Add a new dynamic permission to the system.  For this to work, your
1970     * package must have defined a permission tree through the
1971     * {@link android.R.styleable#AndroidManifestPermissionTree
1972     * &lt;permission-tree&gt;} tag in its manifest.  A package can only add
1973     * permissions to trees that were defined by either its own package or
1974     * another with the same user id; a permission is in a tree if it
1975     * matches the name of the permission tree + ".": for example,
1976     * "com.foo.bar" is a member of the permission tree "com.foo".
1977     *
1978     * <p>It is good to make your permission tree name descriptive, because you
1979     * are taking possession of that entire set of permission names.  Thus, it
1980     * must be under a domain you control, with a suffix that will not match
1981     * any normal permissions that may be declared in any applications that
1982     * are part of that domain.
1983     *
1984     * <p>New permissions must be added before
1985     * any .apks are installed that use those permissions.  Permissions you
1986     * add through this method are remembered across reboots of the device.
1987     * If the given permission already exists, the info you supply here
1988     * will be used to update it.
1989     *
1990     * @param info Description of the permission to be added.
1991     *
1992     * @return Returns true if a new permission was created, false if an
1993     * existing one was updated.
1994     *
1995     * @throws SecurityException if you are not allowed to add the
1996     * given permission name.
1997     *
1998     * @see #removePermission(String)
1999     */
2000    public abstract boolean addPermission(PermissionInfo info);
2001
2002    /**
2003     * Like {@link #addPermission(PermissionInfo)} but asynchronously
2004     * persists the package manager state after returning from the call,
2005     * allowing it to return quicker and batch a series of adds at the
2006     * expense of no guarantee the added permission will be retained if
2007     * the device is rebooted before it is written.
2008     */
2009    public abstract boolean addPermissionAsync(PermissionInfo info);
2010
2011    /**
2012     * Removes a permission that was previously added with
2013     * {@link #addPermission(PermissionInfo)}.  The same ownership rules apply
2014     * -- you are only allowed to remove permissions that you are allowed
2015     * to add.
2016     *
2017     * @param name The name of the permission to remove.
2018     *
2019     * @throws SecurityException if you are not allowed to remove the
2020     * given permission name.
2021     *
2022     * @see #addPermission(PermissionInfo)
2023     */
2024    public abstract void removePermission(String name);
2025
2026    /**
2027     * Returns an {@link Intent} suitable for passing to {@code startActivityForResult}
2028     * which prompts the user to grant {@code permissions} to this application.
2029     * @hide
2030     *
2031     * @throws NullPointerException if {@code permissions} is {@code null}.
2032     * @throws IllegalArgumentException if {@code permissions} contains {@code null}.
2033     */
2034    public Intent buildPermissionRequestIntent(String... permissions) {
2035        if (permissions == null) {
2036            throw new NullPointerException("permissions cannot be null");
2037        }
2038        for (String permission : permissions) {
2039            if (permission == null) {
2040                throw new IllegalArgumentException("permissions cannot contain null");
2041            }
2042        }
2043
2044        Intent i = new Intent(ACTION_REQUEST_PERMISSION);
2045        i.putExtra(EXTRA_REQUEST_PERMISSION_PERMISSION_LIST, permissions);
2046        i.setPackage("com.android.packageinstaller");
2047        return i;
2048    }
2049
2050    /**
2051     * Grant a permission to an application which the application does not
2052     * already have.  The permission must have been requested by the application,
2053     * but as an optional permission.  If the application is not allowed to
2054     * hold the permission, a SecurityException is thrown.
2055     * @hide
2056     *
2057     * @param packageName The name of the package that the permission will be
2058     * granted to.
2059     * @param permissionName The name of the permission.
2060     */
2061    public abstract void grantPermission(String packageName, String permissionName);
2062
2063    /**
2064     * Revoke a permission that was previously granted by {@link #grantPermission}.
2065     * @hide
2066     *
2067     * @param packageName The name of the package that the permission will be
2068     * granted to.
2069     * @param permissionName The name of the permission.
2070     */
2071    public abstract void revokePermission(String packageName, String permissionName);
2072
2073    /**
2074     * Compare the signatures of two packages to determine if the same
2075     * signature appears in both of them.  If they do contain the same
2076     * signature, then they are allowed special privileges when working
2077     * with each other: they can share the same user-id, run instrumentation
2078     * against each other, etc.
2079     *
2080     * @param pkg1 First package name whose signature will be compared.
2081     * @param pkg2 Second package name whose signature will be compared.
2082     *
2083     * @return Returns an integer indicating whether all signatures on the
2084     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
2085     * all signatures match or < 0 if there is not a match ({@link
2086     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
2087     *
2088     * @see #checkSignatures(int, int)
2089     * @see #SIGNATURE_MATCH
2090     * @see #SIGNATURE_NO_MATCH
2091     * @see #SIGNATURE_UNKNOWN_PACKAGE
2092     */
2093    public abstract int checkSignatures(String pkg1, String pkg2);
2094
2095    /**
2096     * Like {@link #checkSignatures(String, String)}, but takes UIDs of
2097     * the two packages to be checked.  This can be useful, for example,
2098     * when doing the check in an IPC, where the UID is the only identity
2099     * available.  It is functionally identical to determining the package
2100     * associated with the UIDs and checking their signatures.
2101     *
2102     * @param uid1 First UID whose signature will be compared.
2103     * @param uid2 Second UID whose signature will be compared.
2104     *
2105     * @return Returns an integer indicating whether all signatures on the
2106     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
2107     * all signatures match or < 0 if there is not a match ({@link
2108     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
2109     *
2110     * @see #checkSignatures(String, String)
2111     * @see #SIGNATURE_MATCH
2112     * @see #SIGNATURE_NO_MATCH
2113     * @see #SIGNATURE_UNKNOWN_PACKAGE
2114     */
2115    public abstract int checkSignatures(int uid1, int uid2);
2116
2117    /**
2118     * Retrieve the names of all packages that are associated with a particular
2119     * user id.  In most cases, this will be a single package name, the package
2120     * that has been assigned that user id.  Where there are multiple packages
2121     * sharing the same user id through the "sharedUserId" mechanism, all
2122     * packages with that id will be returned.
2123     *
2124     * @param uid The user id for which you would like to retrieve the
2125     * associated packages.
2126     *
2127     * @return Returns an array of one or more packages assigned to the user
2128     * id, or null if there are no known packages with the given id.
2129     */
2130    public abstract String[] getPackagesForUid(int uid);
2131
2132    /**
2133     * Retrieve the official name associated with a user id.  This name is
2134     * guaranteed to never change, though it is possibly for the underlying
2135     * user id to be changed.  That is, if you are storing information about
2136     * user ids in persistent storage, you should use the string returned
2137     * by this function instead of the raw user-id.
2138     *
2139     * @param uid The user id for which you would like to retrieve a name.
2140     * @return Returns a unique name for the given user id, or null if the
2141     * user id is not currently assigned.
2142     */
2143    public abstract String getNameForUid(int uid);
2144
2145    /**
2146     * Return the user id associated with a shared user name. Multiple
2147     * applications can specify a shared user name in their manifest and thus
2148     * end up using a common uid. This might be used for new applications
2149     * that use an existing shared user name and need to know the uid of the
2150     * shared user.
2151     *
2152     * @param sharedUserName The shared user name whose uid is to be retrieved.
2153     * @return Returns the uid associated with the shared user, or  NameNotFoundException
2154     * if the shared user name is not being used by any installed packages
2155     * @hide
2156     */
2157    public abstract int getUidForSharedUser(String sharedUserName)
2158            throws NameNotFoundException;
2159
2160    /**
2161     * Return a List of all application packages that are installed on the
2162     * device. If flag GET_UNINSTALLED_PACKAGES has been set, a list of all
2163     * applications including those deleted with {@code DONT_DELETE_DATA} (partially
2164     * installed apps with data directory) will be returned.
2165     *
2166     * @param flags Additional option flags. Use any combination of
2167     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
2168     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
2169     *
2170     * @return Returns a List of ApplicationInfo objects, one for each application that
2171     *         is installed on the device.  In the unlikely case of there being
2172     *         no installed applications, an empty list is returned.
2173     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
2174     *         applications including those deleted with {@code DONT_DELETE_DATA}
2175     *         (partially installed apps with data directory) will be returned.
2176     *
2177     * @see #GET_META_DATA
2178     * @see #GET_SHARED_LIBRARY_FILES
2179     * @see #GET_UNINSTALLED_PACKAGES
2180     */
2181    public abstract List<ApplicationInfo> getInstalledApplications(int flags);
2182
2183    /**
2184     * Get a list of shared libraries that are available on the
2185     * system.
2186     *
2187     * @return An array of shared library names that are
2188     * available on the system, or null if none are installed.
2189     *
2190     */
2191    public abstract String[] getSystemSharedLibraryNames();
2192
2193    /**
2194     * Get a list of features that are available on the
2195     * system.
2196     *
2197     * @return An array of FeatureInfo classes describing the features
2198     * that are available on the system, or null if there are none(!!).
2199     */
2200    public abstract FeatureInfo[] getSystemAvailableFeatures();
2201
2202    /**
2203     * Check whether the given feature name is one of the available
2204     * features as returned by {@link #getSystemAvailableFeatures()}.
2205     *
2206     * @return Returns true if the devices supports the feature, else
2207     * false.
2208     */
2209    public abstract boolean hasSystemFeature(String name);
2210
2211    /**
2212     * Determine the best action to perform for a given Intent.  This is how
2213     * {@link Intent#resolveActivity} finds an activity if a class has not
2214     * been explicitly specified.
2215     *
2216     * <p><em>Note:</em> if using an implicit Intent (without an explicit ComponentName
2217     * specified), be sure to consider whether to set the {@link #MATCH_DEFAULT_ONLY}
2218     * only flag.  You need to do so to resolve the activity in the same way
2219     * that {@link android.content.Context#startActivity(Intent)} and
2220     * {@link android.content.Intent#resolveActivity(PackageManager)
2221     * Intent.resolveActivity(PackageManager)} do.</p>
2222     *
2223     * @param intent An intent containing all of the desired specification
2224     *               (action, data, type, category, and/or component).
2225     * @param flags Additional option flags.  The most important is
2226     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2227     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2228     *
2229     * @return Returns a ResolveInfo containing the final activity intent that
2230     *         was determined to be the best action.  Returns null if no
2231     *         matching activity was found. If multiple matching activities are
2232     *         found and there is no default set, returns a ResolveInfo
2233     *         containing something else, such as the activity resolver.
2234     *
2235     * @see #MATCH_DEFAULT_ONLY
2236     * @see #GET_INTENT_FILTERS
2237     * @see #GET_RESOLVED_FILTER
2238     */
2239    public abstract ResolveInfo resolveActivity(Intent intent, int flags);
2240
2241    /**
2242     * Determine the best action to perform for a given Intent for a given user. This
2243     * is how {@link Intent#resolveActivity} finds an activity if a class has not
2244     * been explicitly specified.
2245     *
2246     * <p><em>Note:</em> if using an implicit Intent (without an explicit ComponentName
2247     * specified), be sure to consider whether to set the {@link #MATCH_DEFAULT_ONLY}
2248     * only flag.  You need to do so to resolve the activity in the same way
2249     * that {@link android.content.Context#startActivity(Intent)} and
2250     * {@link android.content.Intent#resolveActivity(PackageManager)
2251     * Intent.resolveActivity(PackageManager)} do.</p>
2252     *
2253     * @param intent An intent containing all of the desired specification
2254     *               (action, data, type, category, and/or component).
2255     * @param flags Additional option flags.  The most important is
2256     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2257     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2258     * @param userId The user id.
2259     *
2260     * @return Returns a ResolveInfo containing the final activity intent that
2261     *         was determined to be the best action.  Returns null if no
2262     *         matching activity was found. If multiple matching activities are
2263     *         found and there is no default set, returns a ResolveInfo
2264     *         containing something else, such as the activity resolver.
2265     *
2266     * @see #MATCH_DEFAULT_ONLY
2267     * @see #GET_INTENT_FILTERS
2268     * @see #GET_RESOLVED_FILTER
2269     *
2270     * @hide
2271     */
2272    public abstract ResolveInfo resolveActivityAsUser(Intent intent, int flags, int userId);
2273
2274    /**
2275     * Retrieve all activities that can be performed for the given intent.
2276     *
2277     * @param intent The desired intent as per resolveActivity().
2278     * @param flags Additional option flags.  The most important is
2279     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2280     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2281     *
2282     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2283     *         Activity. These are ordered from best to worst match -- that
2284     *         is, the first item in the list is what is returned by
2285     *         {@link #resolveActivity}.  If there are no matching activities, an empty
2286     *         list is returned.
2287     *
2288     * @see #MATCH_DEFAULT_ONLY
2289     * @see #GET_INTENT_FILTERS
2290     * @see #GET_RESOLVED_FILTER
2291     */
2292    public abstract List<ResolveInfo> queryIntentActivities(Intent intent,
2293            int flags);
2294
2295    /**
2296     * Retrieve all activities that can be performed for the given intent, for a specific user.
2297     *
2298     * @param intent The desired intent as per resolveActivity().
2299     * @param flags Additional option flags.  The most important is
2300     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2301     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2302     *
2303     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2304     *         Activity. These are ordered from best to worst match -- that
2305     *         is, the first item in the list is what is returned by
2306     *         {@link #resolveActivity}.  If there are no matching activities, an empty
2307     *         list is returned.
2308     *
2309     * @see #MATCH_DEFAULT_ONLY
2310     * @see #GET_INTENT_FILTERS
2311     * @see #GET_RESOLVED_FILTER
2312     * @hide
2313     */
2314    public abstract List<ResolveInfo> queryIntentActivitiesAsUser(Intent intent,
2315            int flags, int userId);
2316
2317
2318    /**
2319     * Retrieve a set of activities that should be presented to the user as
2320     * similar options.  This is like {@link #queryIntentActivities}, except it
2321     * also allows you to supply a list of more explicit Intents that you would
2322     * like to resolve to particular options, and takes care of returning the
2323     * final ResolveInfo list in a reasonable order, with no duplicates, based
2324     * on those inputs.
2325     *
2326     * @param caller The class name of the activity that is making the
2327     *               request.  This activity will never appear in the output
2328     *               list.  Can be null.
2329     * @param specifics An array of Intents that should be resolved to the
2330     *                  first specific results.  Can be null.
2331     * @param intent The desired intent as per resolveActivity().
2332     * @param flags Additional option flags.  The most important is
2333     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2334     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2335     *
2336     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2337     *         Activity. These are ordered first by all of the intents resolved
2338     *         in <var>specifics</var> and then any additional activities that
2339     *         can handle <var>intent</var> but did not get included by one of
2340     *         the <var>specifics</var> intents.  If there are no matching
2341     *         activities, an empty list is returned.
2342     *
2343     * @see #MATCH_DEFAULT_ONLY
2344     * @see #GET_INTENT_FILTERS
2345     * @see #GET_RESOLVED_FILTER
2346     */
2347    public abstract List<ResolveInfo> queryIntentActivityOptions(
2348            ComponentName caller, Intent[] specifics, Intent intent, int flags);
2349
2350    /**
2351     * Retrieve all receivers that can handle a broadcast of the given intent.
2352     *
2353     * @param intent The desired intent as per resolveActivity().
2354     * @param flags Additional option flags.
2355     *
2356     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2357     *         Receiver. These are ordered from first to last in priority.  If
2358     *         there are no matching receivers, an empty list is returned.
2359     *
2360     * @see #MATCH_DEFAULT_ONLY
2361     * @see #GET_INTENT_FILTERS
2362     * @see #GET_RESOLVED_FILTER
2363     */
2364    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
2365            int flags);
2366
2367    /**
2368     * Retrieve all receivers that can handle a broadcast of the given intent, for a specific
2369     * user.
2370     *
2371     * @param intent The desired intent as per resolveActivity().
2372     * @param flags Additional option flags.
2373     * @param userId The userId of the user being queried.
2374     *
2375     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2376     *         Receiver. These are ordered from first to last in priority.  If
2377     *         there are no matching receivers, an empty list is returned.
2378     *
2379     * @see #MATCH_DEFAULT_ONLY
2380     * @see #GET_INTENT_FILTERS
2381     * @see #GET_RESOLVED_FILTER
2382     * @hide
2383     */
2384    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
2385            int flags, int userId);
2386
2387    /**
2388     * Determine the best service to handle for a given Intent.
2389     *
2390     * @param intent An intent containing all of the desired specification
2391     *               (action, data, type, category, and/or component).
2392     * @param flags Additional option flags.
2393     *
2394     * @return Returns a ResolveInfo containing the final service intent that
2395     *         was determined to be the best action.  Returns null if no
2396     *         matching service was found.
2397     *
2398     * @see #GET_INTENT_FILTERS
2399     * @see #GET_RESOLVED_FILTER
2400     */
2401    public abstract ResolveInfo resolveService(Intent intent, int flags);
2402
2403    /**
2404     * Retrieve all services that can match the given intent.
2405     *
2406     * @param intent The desired intent as per resolveService().
2407     * @param flags Additional option flags.
2408     *
2409     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2410     *         ServiceInfo. These are ordered from best to worst match -- that
2411     *         is, the first item in the list is what is returned by
2412     *         resolveService().  If there are no matching services, an empty
2413     *         list is returned.
2414     *
2415     * @see #GET_INTENT_FILTERS
2416     * @see #GET_RESOLVED_FILTER
2417     */
2418    public abstract List<ResolveInfo> queryIntentServices(Intent intent,
2419            int flags);
2420
2421    /**
2422     * Retrieve all services that can match the given intent for a given user.
2423     *
2424     * @param intent The desired intent as per resolveService().
2425     * @param flags Additional option flags.
2426     * @param userId The user id.
2427     *
2428     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2429     *         ServiceInfo. These are ordered from best to worst match -- that
2430     *         is, the first item in the list is what is returned by
2431     *         resolveService().  If there are no matching services, an empty
2432     *         list is returned.
2433     *
2434     * @see #GET_INTENT_FILTERS
2435     * @see #GET_RESOLVED_FILTER
2436     *
2437     * @hide
2438     */
2439    public abstract List<ResolveInfo> queryIntentServicesAsUser(Intent intent,
2440            int flags, int userId);
2441
2442    /** {@hide} */
2443    public abstract List<ResolveInfo> queryIntentContentProvidersAsUser(
2444            Intent intent, int flags, int userId);
2445
2446    /**
2447     * Retrieve all providers that can match the given intent.
2448     *
2449     * @param intent An intent containing all of the desired specification
2450     *            (action, data, type, category, and/or component).
2451     * @param flags Additional option flags.
2452     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2453     *         ProviderInfo. These are ordered from best to worst match. If
2454     *         there are no matching providers, an empty list is returned.
2455     * @see #GET_INTENT_FILTERS
2456     * @see #GET_RESOLVED_FILTER
2457     */
2458    public abstract List<ResolveInfo> queryIntentContentProviders(Intent intent, int flags);
2459
2460    /**
2461     * Find a single content provider by its base path name.
2462     *
2463     * @param name The name of the provider to find.
2464     * @param flags Additional option flags.  Currently should always be 0.
2465     *
2466     * @return ContentProviderInfo Information about the provider, if found,
2467     *         else null.
2468     */
2469    public abstract ProviderInfo resolveContentProvider(String name,
2470            int flags);
2471
2472    /**
2473     * Retrieve content provider information.
2474     *
2475     * <p><em>Note: unlike most other methods, an empty result set is indicated
2476     * by a null return instead of an empty list.</em>
2477     *
2478     * @param processName If non-null, limits the returned providers to only
2479     *                    those that are hosted by the given process.  If null,
2480     *                    all content providers are returned.
2481     * @param uid If <var>processName</var> is non-null, this is the required
2482     *        uid owning the requested content providers.
2483     * @param flags Additional option flags.  Currently should always be 0.
2484     *
2485     * @return A List&lt;ContentProviderInfo&gt; containing one entry for each
2486     *         content provider either patching <var>processName</var> or, if
2487     *         <var>processName</var> is null, all known content providers.
2488     *         <em>If there are no matching providers, null is returned.</em>
2489     */
2490    public abstract List<ProviderInfo> queryContentProviders(
2491            String processName, int uid, int flags);
2492
2493    /**
2494     * Retrieve all of the information we know about a particular
2495     * instrumentation class.
2496     *
2497     * <p>Throws {@link NameNotFoundException} if instrumentation with the
2498     * given class name cannot be found on the system.
2499     *
2500     * @param className The full name (i.e.
2501     *                  com.google.apps.contacts.InstrumentList) of an
2502     *                  Instrumentation class.
2503     * @param flags Additional option flags.  Currently should always be 0.
2504     *
2505     * @return InstrumentationInfo containing information about the
2506     *         instrumentation.
2507     */
2508    public abstract InstrumentationInfo getInstrumentationInfo(
2509            ComponentName className, int flags) throws NameNotFoundException;
2510
2511    /**
2512     * Retrieve information about available instrumentation code.  May be used
2513     * to retrieve either all instrumentation code, or only the code targeting
2514     * a particular package.
2515     *
2516     * @param targetPackage If null, all instrumentation is returned; only the
2517     *                      instrumentation targeting this package name is
2518     *                      returned.
2519     * @param flags Additional option flags.  Currently should always be 0.
2520     *
2521     * @return A List&lt;InstrumentationInfo&gt; containing one entry for each
2522     *         matching available Instrumentation.  Returns an empty list if
2523     *         there is no instrumentation available for the given package.
2524     */
2525    public abstract List<InstrumentationInfo> queryInstrumentation(
2526            String targetPackage, int flags);
2527
2528    /**
2529     * Retrieve an image from a package.  This is a low-level API used by
2530     * the various package manager info structures (such as
2531     * {@link ComponentInfo} to implement retrieval of their associated
2532     * icon.
2533     *
2534     * @param packageName The name of the package that this icon is coming from.
2535     * Cannot be null.
2536     * @param resid The resource identifier of the desired image.  Cannot be 0.
2537     * @param appInfo Overall information about <var>packageName</var>.  This
2538     * may be null, in which case the application information will be retrieved
2539     * for you if needed; if you already have this information around, it can
2540     * be much more efficient to supply it here.
2541     *
2542     * @return Returns a Drawable holding the requested image.  Returns null if
2543     * an image could not be found for any reason.
2544     */
2545    public abstract Drawable getDrawable(String packageName, int resid,
2546            ApplicationInfo appInfo);
2547
2548    /**
2549     * Retrieve the icon associated with an activity.  Given the full name of
2550     * an activity, retrieves the information about it and calls
2551     * {@link ComponentInfo#loadIcon ComponentInfo.loadIcon()} to return its icon.
2552     * If the activity cannot be found, NameNotFoundException is thrown.
2553     *
2554     * @param activityName Name of the activity whose icon is to be retrieved.
2555     *
2556     * @return Returns the image of the icon, or the default activity icon if
2557     * it could not be found.  Does not return null.
2558     * @throws NameNotFoundException Thrown if the resources for the given
2559     * activity could not be loaded.
2560     *
2561     * @see #getActivityIcon(Intent)
2562     */
2563    public abstract Drawable getActivityIcon(ComponentName activityName)
2564            throws NameNotFoundException;
2565
2566    /**
2567     * Retrieve the icon associated with an Intent.  If intent.getClassName() is
2568     * set, this simply returns the result of
2569     * getActivityIcon(intent.getClassName()).  Otherwise it resolves the intent's
2570     * component and returns the icon associated with the resolved component.
2571     * If intent.getClassName() cannot be found or the Intent cannot be resolved
2572     * to a component, NameNotFoundException is thrown.
2573     *
2574     * @param intent The intent for which you would like to retrieve an icon.
2575     *
2576     * @return Returns the image of the icon, or the default activity icon if
2577     * it could not be found.  Does not return null.
2578     * @throws NameNotFoundException Thrown if the resources for application
2579     * matching the given intent could not be loaded.
2580     *
2581     * @see #getActivityIcon(ComponentName)
2582     */
2583    public abstract Drawable getActivityIcon(Intent intent)
2584            throws NameNotFoundException;
2585
2586    /**
2587     * Retrieve the banner associated with an activity. Given the full name of
2588     * an activity, retrieves the information about it and calls
2589     * {@link ComponentInfo#loadIcon ComponentInfo.loadIcon()} to return its
2590     * banner. If the activity cannot be found, NameNotFoundException is thrown.
2591     *
2592     * @param activityName Name of the activity whose banner is to be retrieved.
2593     * @return Returns the image of the banner, or null if the activity has no
2594     *         banner specified.
2595     * @throws NameNotFoundException Thrown if the resources for the given
2596     *             activity could not be loaded.
2597     * @see #getActivityBanner(Intent)
2598     */
2599    public abstract Drawable getActivityBanner(ComponentName activityName)
2600            throws NameNotFoundException;
2601
2602    /**
2603     * Retrieve the banner associated with an Intent. If intent.getClassName()
2604     * is set, this simply returns the result of
2605     * getActivityBanner(intent.getClassName()). Otherwise it resolves the
2606     * intent's component and returns the banner associated with the resolved
2607     * component. If intent.getClassName() cannot be found or the Intent cannot
2608     * be resolved to a component, NameNotFoundException is thrown.
2609     *
2610     * @param intent The intent for which you would like to retrieve a banner.
2611     * @return Returns the image of the banner, or null if the activity has no
2612     *         banner specified.
2613     * @throws NameNotFoundException Thrown if the resources for application
2614     *             matching the given intent could not be loaded.
2615     * @see #getActivityBanner(ComponentName)
2616     */
2617    public abstract Drawable getActivityBanner(Intent intent)
2618            throws NameNotFoundException;
2619
2620    /**
2621     * Return the generic icon for an activity that is used when no specific
2622     * icon is defined.
2623     *
2624     * @return Drawable Image of the icon.
2625     */
2626    public abstract Drawable getDefaultActivityIcon();
2627
2628    /**
2629     * Retrieve the icon associated with an application.  If it has not defined
2630     * an icon, the default app icon is returned.  Does not return null.
2631     *
2632     * @param info Information about application being queried.
2633     *
2634     * @return Returns the image of the icon, or the default application icon
2635     * if it could not be found.
2636     *
2637     * @see #getApplicationIcon(String)
2638     */
2639    public abstract Drawable getApplicationIcon(ApplicationInfo info);
2640
2641    /**
2642     * Retrieve the icon associated with an application.  Given the name of the
2643     * application's package, retrieves the information about it and calls
2644     * getApplicationIcon() to return its icon. If the application cannot be
2645     * found, NameNotFoundException is thrown.
2646     *
2647     * @param packageName Name of the package whose application icon is to be
2648     *                    retrieved.
2649     *
2650     * @return Returns the image of the icon, or the default application icon
2651     * if it could not be found.  Does not return null.
2652     * @throws NameNotFoundException Thrown if the resources for the given
2653     * application could not be loaded.
2654     *
2655     * @see #getApplicationIcon(ApplicationInfo)
2656     */
2657    public abstract Drawable getApplicationIcon(String packageName)
2658            throws NameNotFoundException;
2659
2660    /**
2661     * Retrieve the banner associated with an application.
2662     *
2663     * @param info Information about application being queried.
2664     * @return Returns the image of the banner or null if the application has no
2665     *         banner specified.
2666     * @see #getApplicationBanner(String)
2667     */
2668    public abstract Drawable getApplicationBanner(ApplicationInfo info);
2669
2670    /**
2671     * Retrieve the banner associated with an application. Given the name of the
2672     * application's package, retrieves the information about it and calls
2673     * getApplicationIcon() to return its banner. If the application cannot be
2674     * found, NameNotFoundException is thrown.
2675     *
2676     * @param packageName Name of the package whose application banner is to be
2677     *            retrieved.
2678     * @return Returns the image of the banner or null if the application has no
2679     *         banner specified.
2680     * @throws NameNotFoundException Thrown if the resources for the given
2681     *             application could not be loaded.
2682     * @see #getApplicationBanner(ApplicationInfo)
2683     */
2684    public abstract Drawable getApplicationBanner(String packageName)
2685            throws NameNotFoundException;
2686
2687    /**
2688     * Retrieve the logo associated with an activity. Given the full name of an
2689     * activity, retrieves the information about it and calls
2690     * {@link ComponentInfo#loadLogo ComponentInfo.loadLogo()} to return its
2691     * logo. If the activity cannot be found, NameNotFoundException is thrown.
2692     *
2693     * @param activityName Name of the activity whose logo is to be retrieved.
2694     * @return Returns the image of the logo or null if the activity has no logo
2695     *         specified.
2696     * @throws NameNotFoundException Thrown if the resources for the given
2697     *             activity could not be loaded.
2698     * @see #getActivityLogo(Intent)
2699     */
2700    public abstract Drawable getActivityLogo(ComponentName activityName)
2701            throws NameNotFoundException;
2702
2703    /**
2704     * Retrieve the logo associated with an Intent.  If intent.getClassName() is
2705     * set, this simply returns the result of
2706     * getActivityLogo(intent.getClassName()).  Otherwise it resolves the intent's
2707     * component and returns the logo associated with the resolved component.
2708     * If intent.getClassName() cannot be found or the Intent cannot be resolved
2709     * to a component, NameNotFoundException is thrown.
2710     *
2711     * @param intent The intent for which you would like to retrieve a logo.
2712     *
2713     * @return Returns the image of the logo, or null if the activity has no
2714     * logo specified.
2715     *
2716     * @throws NameNotFoundException Thrown if the resources for application
2717     * matching the given intent could not be loaded.
2718     *
2719     * @see #getActivityLogo(ComponentName)
2720     */
2721    public abstract Drawable getActivityLogo(Intent intent)
2722            throws NameNotFoundException;
2723
2724    /**
2725     * Retrieve the logo associated with an application.  If it has not specified
2726     * a logo, this method returns null.
2727     *
2728     * @param info Information about application being queried.
2729     *
2730     * @return Returns the image of the logo, or null if no logo is specified
2731     * by the application.
2732     *
2733     * @see #getApplicationLogo(String)
2734     */
2735    public abstract Drawable getApplicationLogo(ApplicationInfo info);
2736
2737    /**
2738     * Retrieve the logo associated with an application.  Given the name of the
2739     * application's package, retrieves the information about it and calls
2740     * getApplicationLogo() to return its logo. If the application cannot be
2741     * found, NameNotFoundException is thrown.
2742     *
2743     * @param packageName Name of the package whose application logo is to be
2744     *                    retrieved.
2745     *
2746     * @return Returns the image of the logo, or null if no application logo
2747     * has been specified.
2748     *
2749     * @throws NameNotFoundException Thrown if the resources for the given
2750     * application could not be loaded.
2751     *
2752     * @see #getApplicationLogo(ApplicationInfo)
2753     */
2754    public abstract Drawable getApplicationLogo(String packageName)
2755            throws NameNotFoundException;
2756
2757    /**
2758     * Retrieve text from a package.  This is a low-level API used by
2759     * the various package manager info structures (such as
2760     * {@link ComponentInfo} to implement retrieval of their associated
2761     * labels and other text.
2762     *
2763     * @param packageName The name of the package that this text is coming from.
2764     * Cannot be null.
2765     * @param resid The resource identifier of the desired text.  Cannot be 0.
2766     * @param appInfo Overall information about <var>packageName</var>.  This
2767     * may be null, in which case the application information will be retrieved
2768     * for you if needed; if you already have this information around, it can
2769     * be much more efficient to supply it here.
2770     *
2771     * @return Returns a CharSequence holding the requested text.  Returns null
2772     * if the text could not be found for any reason.
2773     */
2774    public abstract CharSequence getText(String packageName, int resid,
2775            ApplicationInfo appInfo);
2776
2777    /**
2778     * Retrieve an XML file from a package.  This is a low-level API used to
2779     * retrieve XML meta data.
2780     *
2781     * @param packageName The name of the package that this xml is coming from.
2782     * Cannot be null.
2783     * @param resid The resource identifier of the desired xml.  Cannot be 0.
2784     * @param appInfo Overall information about <var>packageName</var>.  This
2785     * may be null, in which case the application information will be retrieved
2786     * for you if needed; if you already have this information around, it can
2787     * be much more efficient to supply it here.
2788     *
2789     * @return Returns an XmlPullParser allowing you to parse out the XML
2790     * data.  Returns null if the xml resource could not be found for any
2791     * reason.
2792     */
2793    public abstract XmlResourceParser getXml(String packageName, int resid,
2794            ApplicationInfo appInfo);
2795
2796    /**
2797     * Return the label to use for this application.
2798     *
2799     * @return Returns the label associated with this application, or null if
2800     * it could not be found for any reason.
2801     * @param info The application to get the label of.
2802     */
2803    public abstract CharSequence getApplicationLabel(ApplicationInfo info);
2804
2805    /**
2806     * Retrieve the resources associated with an activity.  Given the full
2807     * name of an activity, retrieves the information about it and calls
2808     * getResources() to return its application's resources.  If the activity
2809     * cannot be found, NameNotFoundException is thrown.
2810     *
2811     * @param activityName Name of the activity whose resources are to be
2812     *                     retrieved.
2813     *
2814     * @return Returns the application's Resources.
2815     * @throws NameNotFoundException Thrown if the resources for the given
2816     * application could not be loaded.
2817     *
2818     * @see #getResourcesForApplication(ApplicationInfo)
2819     */
2820    public abstract Resources getResourcesForActivity(ComponentName activityName)
2821            throws NameNotFoundException;
2822
2823    /**
2824     * Retrieve the resources for an application.  Throws NameNotFoundException
2825     * if the package is no longer installed.
2826     *
2827     * @param app Information about the desired application.
2828     *
2829     * @return Returns the application's Resources.
2830     * @throws NameNotFoundException Thrown if the resources for the given
2831     * application could not be loaded (most likely because it was uninstalled).
2832     */
2833    public abstract Resources getResourcesForApplication(ApplicationInfo app)
2834            throws NameNotFoundException;
2835
2836    /**
2837     * Retrieve the resources associated with an application.  Given the full
2838     * package name of an application, retrieves the information about it and
2839     * calls getResources() to return its application's resources.  If the
2840     * appPackageName cannot be found, NameNotFoundException is thrown.
2841     *
2842     * @param appPackageName Package name of the application whose resources
2843     *                       are to be retrieved.
2844     *
2845     * @return Returns the application's Resources.
2846     * @throws NameNotFoundException Thrown if the resources for the given
2847     * application could not be loaded.
2848     *
2849     * @see #getResourcesForApplication(ApplicationInfo)
2850     */
2851    public abstract Resources getResourcesForApplication(String appPackageName)
2852            throws NameNotFoundException;
2853
2854    /** @hide */
2855    public abstract Resources getResourcesForApplicationAsUser(String appPackageName, int userId)
2856            throws NameNotFoundException;
2857
2858    /**
2859     * Retrieve overall information about an application package defined
2860     * in a package archive file
2861     *
2862     * @param archiveFilePath The path to the archive file
2863     * @param flags Additional option flags. Use any combination of
2864     * {@link #GET_ACTIVITIES},
2865     * {@link #GET_GIDS},
2866     * {@link #GET_CONFIGURATIONS},
2867     * {@link #GET_INSTRUMENTATION},
2868     * {@link #GET_PERMISSIONS},
2869     * {@link #GET_PROVIDERS},
2870     * {@link #GET_RECEIVERS},
2871     * {@link #GET_SERVICES},
2872     * {@link #GET_SIGNATURES}, to modify the data returned.
2873     *
2874     * @return Returns the information about the package. Returns
2875     * null if the package could not be successfully parsed.
2876     *
2877     * @see #GET_ACTIVITIES
2878     * @see #GET_GIDS
2879     * @see #GET_CONFIGURATIONS
2880     * @see #GET_INSTRUMENTATION
2881     * @see #GET_PERMISSIONS
2882     * @see #GET_PROVIDERS
2883     * @see #GET_RECEIVERS
2884     * @see #GET_SERVICES
2885     * @see #GET_SIGNATURES
2886     *
2887     */
2888    public PackageInfo getPackageArchiveInfo(String archiveFilePath, int flags) {
2889        final PackageParser parser = new PackageParser();
2890        final File apkFile = new File(archiveFilePath);
2891        try {
2892            PackageParser.Package pkg = parser.parseMonolithicPackage(apkFile, 0);
2893            if ((flags & GET_SIGNATURES) != 0) {
2894                parser.collectCertificates(pkg, 0);
2895            }
2896            PackageUserState state = new PackageUserState();
2897            return PackageParser.generatePackageInfo(pkg, null, flags, 0, 0, null, state);
2898        } catch (PackageParserException e) {
2899            return null;
2900        }
2901    }
2902
2903    /**
2904     * @hide
2905     *
2906     * Install a package. Since this may take a little while, the result will
2907     * be posted back to the given observer.  An installation will fail if the calling context
2908     * lacks the {@link android.Manifest.permission#INSTALL_PACKAGES} permission, if the
2909     * package named in the package file's manifest is already installed, or if there's no space
2910     * available on the device.
2911     *
2912     * @param packageURI The location of the package file to install.  This can be a 'file:' or a
2913     * 'content:' URI.
2914     * @param observer An observer callback to get notified when the package installation is
2915     * complete. {@link IPackageInstallObserver#packageInstalled(String, int)} will be
2916     * called when that happens.  This parameter must not be null.
2917     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2918     * {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
2919     * @param installerPackageName Optional package name of the application that is performing the
2920     * installation. This identifies which market the package came from.
2921     * @deprecated Use {@link #installPackage(Uri, IPackageInstallObserver2, int, String)}
2922     * instead.  This method will continue to be supported but the older observer interface
2923     * will not get additional failure details.
2924     */
2925    // @SystemApi
2926    public abstract void installPackage(
2927            Uri packageURI, IPackageInstallObserver observer, int flags,
2928            String installerPackageName);
2929
2930    /**
2931     * Similar to
2932     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2933     * with an extra verification file provided.
2934     *
2935     * @param packageURI The location of the package file to install. This can
2936     *            be a 'file:' or a 'content:' URI.
2937     * @param observer An observer callback to get notified when the package
2938     *            installation is complete.
2939     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2940     *            will be called when that happens. This parameter must not be null.
2941     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2942     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
2943     * @param installerPackageName Optional package name of the application that
2944     *            is performing the installation. This identifies which market
2945     *            the package came from.
2946     * @param verificationURI The location of the supplementary verification
2947     *            file. This can be a 'file:' or a 'content:' URI. May be
2948     *            {@code null}.
2949     * @param manifestDigest an object that holds the digest of the package
2950     *            which can be used to verify ownership. May be {@code null}.
2951     * @param encryptionParams if the package to be installed is encrypted,
2952     *            these parameters describing the encryption and authentication
2953     *            used. May be {@code null}.
2954     * @hide
2955     * @deprecated Use {@link #installPackageWithVerification(Uri, IPackageInstallObserver2,
2956     * int, String, Uri, ManifestDigest, ContainerEncryptionParams)} instead.  This method will
2957     * continue to be supported but the older observer interface will not get additional failure
2958     * details.
2959     */
2960    // @SystemApi
2961    public abstract void installPackageWithVerification(Uri packageURI,
2962            IPackageInstallObserver observer, int flags, String installerPackageName,
2963            Uri verificationURI, ManifestDigest manifestDigest,
2964            ContainerEncryptionParams encryptionParams);
2965
2966    /**
2967     * Similar to
2968     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2969     * with an extra verification information provided.
2970     *
2971     * @param packageURI The location of the package file to install. This can
2972     *            be a 'file:' or a 'content:' URI.
2973     * @param observer An observer callback to get notified when the package
2974     *            installation is complete.
2975     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2976     *            will be called when that happens. This parameter must not be null.
2977     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2978     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
2979     * @param installerPackageName Optional package name of the application that
2980     *            is performing the installation. This identifies which market
2981     *            the package came from.
2982     * @param verificationParams an object that holds signal information to
2983     *            assist verification. May be {@code null}.
2984     * @param encryptionParams if the package to be installed is encrypted,
2985     *            these parameters describing the encryption and authentication
2986     *            used. May be {@code null}.
2987     *
2988     * @hide
2989     * @deprecated Use {@link #installPackageWithVerificationAndEncryption(Uri,
2990     * IPackageInstallObserver2, int, String, VerificationParams,
2991     * ContainerEncryptionParams)} instead.  This method will continue to be
2992     * supported but the older observer interface will not get additional failure details.
2993     */
2994    @Deprecated
2995    public abstract void installPackageWithVerificationAndEncryption(Uri packageURI,
2996            IPackageInstallObserver observer, int flags, String installerPackageName,
2997            VerificationParams verificationParams,
2998            ContainerEncryptionParams encryptionParams);
2999
3000    // Package-install variants that take the new, expanded form of observer interface.
3001    // Note that these *also* take the original observer type and will redundantly
3002    // report the same information to that observer if supplied; but it is not required.
3003
3004    /**
3005     * @hide
3006     *
3007     * Install a package. Since this may take a little while, the result will
3008     * be posted back to the given observer.  An installation will fail if the calling context
3009     * lacks the {@link android.Manifest.permission#INSTALL_PACKAGES} permission, if the
3010     * package named in the package file's manifest is already installed, or if there's no space
3011     * available on the device.
3012     *
3013     * @param packageURI The location of the package file to install.  This can be a 'file:' or a
3014     * 'content:' URI.
3015     * @param observer An observer callback to get notified when the package installation is
3016     * complete. {@link PackageInstallObserver#packageInstalled(String, Bundle, int)} will be
3017     * called when that happens. This parameter must not be null.
3018     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
3019     * {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
3020     * @param installerPackageName Optional package name of the application that is performing the
3021     * installation. This identifies which market the package came from.
3022     */
3023    public abstract void installPackage(
3024            Uri packageURI, PackageInstallObserver observer,
3025            int flags, String installerPackageName);
3026
3027    /**
3028     * Similar to
3029     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
3030     * with an extra verification file provided.
3031     *
3032     * @param packageURI The location of the package file to install. This can
3033     *            be a 'file:' or a 'content:' URI.
3034     * @param observer An observer callback to get notified when the package installation is
3035     * complete. {@link PackageInstallObserver#packageInstalled(String, Bundle, int)} will be
3036     * called when that happens. This parameter must not be null.
3037     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
3038     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
3039     * @param installerPackageName Optional package name of the application that
3040     *            is performing the installation. This identifies which market
3041     *            the package came from.
3042     * @param verificationURI The location of the supplementary verification
3043     *            file. This can be a 'file:' or a 'content:' URI. May be
3044     *            {@code null}.
3045     * @param manifestDigest an object that holds the digest of the package
3046     *            which can be used to verify ownership. May be {@code null}.
3047     * @param encryptionParams if the package to be installed is encrypted,
3048     *            these parameters describing the encryption and authentication
3049     *            used. May be {@code null}.
3050     * @hide
3051     */
3052    public abstract void installPackageWithVerification(Uri packageURI,
3053            PackageInstallObserver observer, int flags, String installerPackageName,
3054            Uri verificationURI, ManifestDigest manifestDigest,
3055            ContainerEncryptionParams encryptionParams);
3056
3057    /**
3058     * Similar to
3059     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
3060     * with an extra verification information provided.
3061     *
3062     * @param packageURI The location of the package file to install. This can
3063     *            be a 'file:' or a 'content:' URI.
3064     * @param observer An observer callback to get notified when the package installation is
3065     * complete. {@link PackageInstallObserver#packageInstalled(String, Bundle, int)} will be
3066     * called when that happens. This parameter must not be null.
3067     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
3068     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
3069     * @param installerPackageName Optional package name of the application that
3070     *            is performing the installation. This identifies which market
3071     *            the package came from.
3072     * @param verificationParams an object that holds signal information to
3073     *            assist verification. May be {@code null}.
3074     * @param encryptionParams if the package to be installed is encrypted,
3075     *            these parameters describing the encryption and authentication
3076     *            used. May be {@code null}.
3077     *
3078     * @hide
3079     */
3080    public abstract void installPackageWithVerificationAndEncryption(Uri packageURI,
3081            PackageInstallObserver observer, int flags, String installerPackageName,
3082            VerificationParams verificationParams, ContainerEncryptionParams encryptionParams);
3083
3084    /**
3085     * If there is already an application with the given package name installed
3086     * on the system for other users, also install it for the calling user.
3087     * @hide
3088     */
3089    // @SystemApi
3090    public abstract int installExistingPackage(String packageName)
3091            throws NameNotFoundException;
3092
3093    /**
3094     * Allows a package listening to the
3095     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
3096     * broadcast} to respond to the package manager. The response must include
3097     * the {@code verificationCode} which is one of
3098     * {@link PackageManager#VERIFICATION_ALLOW} or
3099     * {@link PackageManager#VERIFICATION_REJECT}.
3100     *
3101     * @param id pending package identifier as passed via the
3102     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra.
3103     * @param verificationCode either {@link PackageManager#VERIFICATION_ALLOW}
3104     *            or {@link PackageManager#VERIFICATION_REJECT}.
3105     * @throws SecurityException if the caller does not have the
3106     *            PACKAGE_VERIFICATION_AGENT permission.
3107     */
3108    public abstract void verifyPendingInstall(int id, int verificationCode);
3109
3110    /**
3111     * Allows a package listening to the
3112     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
3113     * broadcast} to extend the default timeout for a response and declare what
3114     * action to perform after the timeout occurs. The response must include
3115     * the {@code verificationCodeAtTimeout} which is one of
3116     * {@link PackageManager#VERIFICATION_ALLOW} or
3117     * {@link PackageManager#VERIFICATION_REJECT}.
3118     *
3119     * This method may only be called once per package id. Additional calls
3120     * will have no effect.
3121     *
3122     * @param id pending package identifier as passed via the
3123     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra.
3124     * @param verificationCodeAtTimeout either
3125     *            {@link PackageManager#VERIFICATION_ALLOW} or
3126     *            {@link PackageManager#VERIFICATION_REJECT}. If
3127     *            {@code verificationCodeAtTimeout} is neither
3128     *            {@link PackageManager#VERIFICATION_ALLOW} or
3129     *            {@link PackageManager#VERIFICATION_REJECT}, then
3130     *            {@code verificationCodeAtTimeout} will default to
3131     *            {@link PackageManager#VERIFICATION_REJECT}.
3132     * @param millisecondsToDelay the amount of time requested for the timeout.
3133     *            Must be positive and less than
3134     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}. If
3135     *            {@code millisecondsToDelay} is out of bounds,
3136     *            {@code millisecondsToDelay} will be set to the closest in
3137     *            bounds value; namely, 0 or
3138     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}.
3139     * @throws SecurityException if the caller does not have the
3140     *            PACKAGE_VERIFICATION_AGENT permission.
3141     */
3142    public abstract void extendVerificationTimeout(int id,
3143            int verificationCodeAtTimeout, long millisecondsToDelay);
3144
3145    /**
3146     * Change the installer associated with a given package.  There are limitations
3147     * on how the installer package can be changed; in particular:
3148     * <ul>
3149     * <li> A SecurityException will be thrown if <var>installerPackageName</var>
3150     * is not signed with the same certificate as the calling application.
3151     * <li> A SecurityException will be thrown if <var>targetPackage</var> already
3152     * has an installer package, and that installer package is not signed with
3153     * the same certificate as the calling application.
3154     * </ul>
3155     *
3156     * @param targetPackage The installed package whose installer will be changed.
3157     * @param installerPackageName The package name of the new installer.  May be
3158     * null to clear the association.
3159     */
3160    public abstract void setInstallerPackageName(String targetPackage,
3161            String installerPackageName);
3162
3163    /**
3164     * Attempts to delete a package.  Since this may take a little while, the result will
3165     * be posted back to the given observer.  A deletion will fail if the calling context
3166     * lacks the {@link android.Manifest.permission#DELETE_PACKAGES} permission, if the
3167     * named package cannot be found, or if the named package is a "system package".
3168     * (TODO: include pointer to documentation on "system packages")
3169     *
3170     * @param packageName The name of the package to delete
3171     * @param observer An observer callback to get notified when the package deletion is
3172     * complete. {@link android.content.pm.IPackageDeleteObserver#packageDeleted(boolean)} will be
3173     * called when that happens.  observer may be null to indicate that no callback is desired.
3174     * @param flags - possible values: {@link #DELETE_KEEP_DATA},
3175     * {@link #DELETE_ALL_USERS}.
3176     *
3177     * @hide
3178     */
3179    // @SystemApi
3180    public abstract void deletePackage(
3181            String packageName, IPackageDeleteObserver observer, int flags);
3182
3183    /**
3184     * Retrieve the package name of the application that installed a package. This identifies
3185     * which market the package came from.
3186     *
3187     * @param packageName The name of the package to query
3188     */
3189    public abstract String getInstallerPackageName(String packageName);
3190
3191    /**
3192     * Attempts to clear the user data directory of an application.
3193     * Since this may take a little while, the result will
3194     * be posted back to the given observer.  A deletion will fail if the
3195     * named package cannot be found, or if the named package is a "system package".
3196     *
3197     * @param packageName The name of the package
3198     * @param observer An observer callback to get notified when the operation is finished
3199     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
3200     * will be called when that happens.  observer may be null to indicate that
3201     * no callback is desired.
3202     *
3203     * @hide
3204     */
3205    public abstract void clearApplicationUserData(String packageName,
3206            IPackageDataObserver observer);
3207    /**
3208     * Attempts to delete the cache files associated with an application.
3209     * Since this may take a little while, the result will
3210     * be posted back to the given observer.  A deletion will fail if the calling context
3211     * lacks the {@link android.Manifest.permission#DELETE_CACHE_FILES} permission, if the
3212     * named package cannot be found, or if the named package is a "system package".
3213     *
3214     * @param packageName The name of the package to delete
3215     * @param observer An observer callback to get notified when the cache file deletion
3216     * is complete.
3217     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
3218     * will be called when that happens.  observer may be null to indicate that
3219     * no callback is desired.
3220     *
3221     * @hide
3222     */
3223    public abstract void deleteApplicationCacheFiles(String packageName,
3224            IPackageDataObserver observer);
3225
3226    /**
3227     * Free storage by deleting LRU sorted list of cache files across
3228     * all applications. If the currently available free storage
3229     * on the device is greater than or equal to the requested
3230     * free storage, no cache files are cleared. If the currently
3231     * available storage on the device is less than the requested
3232     * free storage, some or all of the cache files across
3233     * all applications are deleted (based on last accessed time)
3234     * to increase the free storage space on the device to
3235     * the requested value. There is no guarantee that clearing all
3236     * the cache files from all applications will clear up
3237     * enough storage to achieve the desired value.
3238     * @param freeStorageSize The number of bytes of storage to be
3239     * freed by the system. Say if freeStorageSize is XX,
3240     * and the current free storage is YY,
3241     * if XX is less than YY, just return. if not free XX-YY number
3242     * of bytes if possible.
3243     * @param observer call back used to notify when
3244     * the operation is completed
3245     *
3246     * @hide
3247     */
3248    // @SystemApi
3249    public abstract void freeStorageAndNotify(long freeStorageSize, IPackageDataObserver observer);
3250
3251    /**
3252     * Free storage by deleting LRU sorted list of cache files across
3253     * all applications. If the currently available free storage
3254     * on the device is greater than or equal to the requested
3255     * free storage, no cache files are cleared. If the currently
3256     * available storage on the device is less than the requested
3257     * free storage, some or all of the cache files across
3258     * all applications are deleted (based on last accessed time)
3259     * to increase the free storage space on the device to
3260     * the requested value. There is no guarantee that clearing all
3261     * the cache files from all applications will clear up
3262     * enough storage to achieve the desired value.
3263     * @param freeStorageSize The number of bytes of storage to be
3264     * freed by the system. Say if freeStorageSize is XX,
3265     * and the current free storage is YY,
3266     * if XX is less than YY, just return. if not free XX-YY number
3267     * of bytes if possible.
3268     * @param pi IntentSender call back used to
3269     * notify when the operation is completed.May be null
3270     * to indicate that no call back is desired.
3271     *
3272     * @hide
3273     */
3274    public abstract void freeStorage(long freeStorageSize, IntentSender pi);
3275
3276    /**
3277     * Retrieve the size information for a package.
3278     * Since this may take a little while, the result will
3279     * be posted back to the given observer.  The calling context
3280     * should have the {@link android.Manifest.permission#GET_PACKAGE_SIZE} permission.
3281     *
3282     * @param packageName The name of the package whose size information is to be retrieved
3283     * @param userHandle The user whose size information should be retrieved.
3284     * @param observer An observer callback to get notified when the operation
3285     * is complete.
3286     * {@link android.content.pm.IPackageStatsObserver#onGetStatsCompleted(PackageStats, boolean)}
3287     * The observer's callback is invoked with a PackageStats object(containing the
3288     * code, data and cache sizes of the package) and a boolean value representing
3289     * the status of the operation. observer may be null to indicate that
3290     * no callback is desired.
3291     *
3292     * @hide
3293     */
3294    public abstract void getPackageSizeInfo(String packageName, int userHandle,
3295            IPackageStatsObserver observer);
3296
3297    /**
3298     * Like {@link #getPackageSizeInfo(String, int, IPackageStatsObserver)}, but
3299     * returns the size for the calling user.
3300     *
3301     * @hide
3302     */
3303    public void getPackageSizeInfo(String packageName, IPackageStatsObserver observer) {
3304        getPackageSizeInfo(packageName, UserHandle.myUserId(), observer);
3305    }
3306
3307    /**
3308     * @deprecated This function no longer does anything; it was an old
3309     * approach to managing preferred activities, which has been superseded
3310     * by (and conflicts with) the modern activity-based preferences.
3311     */
3312    @Deprecated
3313    public abstract void addPackageToPreferred(String packageName);
3314
3315    /**
3316     * @deprecated This function no longer does anything; it was an old
3317     * approach to managing preferred activities, which has been superseded
3318     * by (and conflicts with) the modern activity-based preferences.
3319     */
3320    @Deprecated
3321    public abstract void removePackageFromPreferred(String packageName);
3322
3323    /**
3324     * Retrieve the list of all currently configured preferred packages.  The
3325     * first package on the list is the most preferred, the last is the
3326     * least preferred.
3327     *
3328     * @param flags Additional option flags. Use any combination of
3329     * {@link #GET_ACTIVITIES},
3330     * {@link #GET_GIDS},
3331     * {@link #GET_CONFIGURATIONS},
3332     * {@link #GET_INSTRUMENTATION},
3333     * {@link #GET_PERMISSIONS},
3334     * {@link #GET_PROVIDERS},
3335     * {@link #GET_RECEIVERS},
3336     * {@link #GET_SERVICES},
3337     * {@link #GET_SIGNATURES}, to modify the data returned.
3338     *
3339     * @return Returns a list of PackageInfo objects describing each
3340     * preferred application, in order of preference.
3341     *
3342     * @see #GET_ACTIVITIES
3343     * @see #GET_GIDS
3344     * @see #GET_CONFIGURATIONS
3345     * @see #GET_INSTRUMENTATION
3346     * @see #GET_PERMISSIONS
3347     * @see #GET_PROVIDERS
3348     * @see #GET_RECEIVERS
3349     * @see #GET_SERVICES
3350     * @see #GET_SIGNATURES
3351     */
3352    public abstract List<PackageInfo> getPreferredPackages(int flags);
3353
3354    /**
3355     * @deprecated This is a protected API that should not have been available
3356     * to third party applications.  It is the platform's responsibility for
3357     * assigning preferred activities and this cannot be directly modified.
3358     *
3359     * Add a new preferred activity mapping to the system.  This will be used
3360     * to automatically select the given activity component when
3361     * {@link Context#startActivity(Intent) Context.startActivity()} finds
3362     * multiple matching activities and also matches the given filter.
3363     *
3364     * @param filter The set of intents under which this activity will be
3365     * made preferred.
3366     * @param match The IntentFilter match category that this preference
3367     * applies to.
3368     * @param set The set of activities that the user was picking from when
3369     * this preference was made.
3370     * @param activity The component name of the activity that is to be
3371     * preferred.
3372     */
3373    @Deprecated
3374    public abstract void addPreferredActivity(IntentFilter filter, int match,
3375            ComponentName[] set, ComponentName activity);
3376
3377    /**
3378     * Same as {@link #addPreferredActivity(IntentFilter, int,
3379            ComponentName[], ComponentName)}, but with a specific userId to apply the preference
3380            to.
3381     * @hide
3382     */
3383    public void addPreferredActivity(IntentFilter filter, int match,
3384            ComponentName[] set, ComponentName activity, int userId) {
3385        throw new RuntimeException("Not implemented. Must override in a subclass.");
3386    }
3387
3388    /**
3389     * @deprecated This is a protected API that should not have been available
3390     * to third party applications.  It is the platform's responsibility for
3391     * assigning preferred activities and this cannot be directly modified.
3392     *
3393     * Replaces an existing preferred activity mapping to the system, and if that were not present
3394     * adds a new preferred activity.  This will be used
3395     * to automatically select the given activity component when
3396     * {@link Context#startActivity(Intent) Context.startActivity()} finds
3397     * multiple matching activities and also matches the given filter.
3398     *
3399     * @param filter The set of intents under which this activity will be
3400     * made preferred.
3401     * @param match The IntentFilter match category that this preference
3402     * applies to.
3403     * @param set The set of activities that the user was picking from when
3404     * this preference was made.
3405     * @param activity The component name of the activity that is to be
3406     * preferred.
3407     * @hide
3408     */
3409    @Deprecated
3410    public abstract void replacePreferredActivity(IntentFilter filter, int match,
3411            ComponentName[] set, ComponentName activity);
3412
3413    /**
3414     * Remove all preferred activity mappings, previously added with
3415     * {@link #addPreferredActivity}, from the
3416     * system whose activities are implemented in the given package name.
3417     * An application can only clear its own package(s).
3418     *
3419     * @param packageName The name of the package whose preferred activity
3420     * mappings are to be removed.
3421     */
3422    public abstract void clearPackagePreferredActivities(String packageName);
3423
3424    /**
3425     * Retrieve all preferred activities, previously added with
3426     * {@link #addPreferredActivity}, that are
3427     * currently registered with the system.
3428     *
3429     * @param outFilters A list in which to place the filters of all of the
3430     * preferred activities, or null for none.
3431     * @param outActivities A list in which to place the component names of
3432     * all of the preferred activities, or null for none.
3433     * @param packageName An option package in which you would like to limit
3434     * the list.  If null, all activities will be returned; if non-null, only
3435     * those activities in the given package are returned.
3436     *
3437     * @return Returns the total number of registered preferred activities
3438     * (the number of distinct IntentFilter records, not the number of unique
3439     * activity components) that were found.
3440     */
3441    public abstract int getPreferredActivities(List<IntentFilter> outFilters,
3442            List<ComponentName> outActivities, String packageName);
3443
3444    /**
3445     * Ask for the set of available 'home' activities and the current explicit
3446     * default, if any.
3447     * @hide
3448     */
3449    public abstract ComponentName getHomeActivities(List<ResolveInfo> outActivities);
3450
3451    /**
3452     * Set the enabled setting for a package component (activity, receiver, service, provider).
3453     * This setting will override any enabled state which may have been set by the component in its
3454     * manifest.
3455     *
3456     * @param componentName The component to enable
3457     * @param newState The new enabled state for the component.  The legal values for this state
3458     *                 are:
3459     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
3460     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
3461     *                   and
3462     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
3463     *                 The last one removes the setting, thereby restoring the component's state to
3464     *                 whatever was set in it's manifest (or enabled, by default).
3465     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
3466     */
3467    public abstract void setComponentEnabledSetting(ComponentName componentName,
3468            int newState, int flags);
3469
3470
3471    /**
3472     * Return the enabled setting for a package component (activity,
3473     * receiver, service, provider).  This returns the last value set by
3474     * {@link #setComponentEnabledSetting(ComponentName, int, int)}; in most
3475     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
3476     * the value originally specified in the manifest has not been modified.
3477     *
3478     * @param componentName The component to retrieve.
3479     * @return Returns the current enabled state for the component.  May
3480     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
3481     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
3482     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
3483     * component's enabled state is based on the original information in
3484     * the manifest as found in {@link ComponentInfo}.
3485     */
3486    public abstract int getComponentEnabledSetting(ComponentName componentName);
3487
3488    /**
3489     * Set the enabled setting for an application
3490     * This setting will override any enabled state which may have been set by the application in
3491     * its manifest.  It also overrides the enabled state set in the manifest for any of the
3492     * application's components.  It does not override any enabled state set by
3493     * {@link #setComponentEnabledSetting} for any of the application's components.
3494     *
3495     * @param packageName The package name of the application to enable
3496     * @param newState The new enabled state for the component.  The legal values for this state
3497     *                 are:
3498     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
3499     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
3500     *                   and
3501     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
3502     *                 The last one removes the setting, thereby restoring the applications's state to
3503     *                 whatever was set in its manifest (or enabled, by default).
3504     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
3505     */
3506    public abstract void setApplicationEnabledSetting(String packageName,
3507            int newState, int flags);
3508
3509    /**
3510     * Return the enabled setting for an application. This returns
3511     * the last value set by
3512     * {@link #setApplicationEnabledSetting(String, int, int)}; in most
3513     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
3514     * the value originally specified in the manifest has not been modified.
3515     *
3516     * @param packageName The package name of the application to retrieve.
3517     * @return Returns the current enabled state for the application.  May
3518     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
3519     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
3520     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
3521     * application's enabled state is based on the original information in
3522     * the manifest as found in {@link ComponentInfo}.
3523     * @throws IllegalArgumentException if the named package does not exist.
3524     */
3525    public abstract int getApplicationEnabledSetting(String packageName);
3526
3527    /**
3528     * Puts the package in a blocked state, which is almost like an uninstalled state,
3529     * making the package unavailable, but it doesn't remove the data or the actual
3530     * package file.
3531     * @hide
3532     */
3533    public abstract boolean setApplicationBlockedSettingAsUser(String packageName, boolean blocked,
3534            UserHandle userHandle);
3535
3536    /**
3537     * Returns the blocked state of a package.
3538     * @see #setApplicationBlockedSettingAsUser(String, boolean, UserHandle)
3539     * @hide
3540     */
3541    public abstract boolean getApplicationBlockedSettingAsUser(String packageName,
3542            UserHandle userHandle);
3543
3544    /**
3545     * Return whether the device has been booted into safe mode.
3546     */
3547    public abstract boolean isSafeMode();
3548
3549    /**
3550     * Attempts to move package resources from internal to external media or vice versa.
3551     * Since this may take a little while, the result will
3552     * be posted back to the given observer.   This call may fail if the calling context
3553     * lacks the {@link android.Manifest.permission#MOVE_PACKAGE} permission, if the
3554     * named package cannot be found, or if the named package is a "system package".
3555     *
3556     * @param packageName The name of the package to delete
3557     * @param observer An observer callback to get notified when the package move is
3558     * complete. {@link android.content.pm.IPackageMoveObserver#packageMoved(boolean)} will be
3559     * called when that happens.  observer may be null to indicate that no callback is desired.
3560     * @param flags To indicate install location {@link #MOVE_INTERNAL} or
3561     * {@link #MOVE_EXTERNAL_MEDIA}
3562     *
3563     * @hide
3564     */
3565    public abstract void movePackage(
3566            String packageName, IPackageMoveObserver observer, int flags);
3567
3568    /**
3569     * Returns the device identity that verifiers can use to associate their scheme to a particular
3570     * device. This should not be used by anything other than a package verifier.
3571     *
3572     * @return identity that uniquely identifies current device
3573     * @hide
3574     */
3575    public abstract VerifierDeviceIdentity getVerifierDeviceIdentity();
3576
3577    /** {@hide} */
3578    public abstract PackageInstaller getPackageInstaller();
3579
3580    /**
3581     * Returns the data directory for a particular user and package, given the uid of the package.
3582     * @param uid uid of the package, including the userId and appId
3583     * @param packageName name of the package
3584     * @return the user-specific data directory for the package
3585     * @hide
3586     */
3587    public static String getDataDirForUser(int userId, String packageName) {
3588        // TODO: This should be shared with Installer's knowledge of user directory
3589        return Environment.getDataDirectory().toString() + "/user/" + userId
3590                + "/" + packageName;
3591    }
3592
3593    /**
3594     * Adds a {@link CrossProfileIntentFilter}. After calling this method all intents sent from the
3595     * user with id sourceUserId can also be be resolved by activities in the user with id
3596     * targetUserId if they match the specified intent filter.
3597     * @param filter the {@link IntentFilter} the intent has to match
3598     * @param removable if set to false, {@link clearCrossProfileIntentFilters} will not remove this
3599     * {@link CrossProfileIntentFilter}
3600     * @hide
3601     */
3602    public abstract void addCrossProfileIntentFilter(IntentFilter filter, int sourceUserId,
3603            int targetUserId, int flags);
3604
3605    /**
3606     * Clearing {@link CrossProfileIntentFilter}s which have the specified user as their
3607     * source, and have been set by the profile owner
3608     * @param sourceUserId
3609     * @hide
3610     */
3611    public abstract void clearCrossProfileIntentFilters(int sourceUserId);
3612
3613    /**
3614     * Forwards all intents for {@link packageName} for user {@link sourceUserId} to user
3615     * {@link targetUserId}.
3616     * @hide
3617     */
3618    public abstract void addCrossProfileIntentsForPackage(String packageName,
3619            int sourceUserId, int targetUserId);
3620}
3621