PackageManager.java revision e799175b6ba3aadd972f4b861758d675d1f93987
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.SdkConstant;
20import android.annotation.SdkConstant.SdkConstantType;
21import android.content.ComponentName;
22import android.content.Context;
23import android.content.Intent;
24import android.content.IntentFilter;
25import android.content.IntentSender;
26import android.content.res.Resources;
27import android.content.res.XmlResourceParser;
28import android.graphics.drawable.Drawable;
29import android.net.Uri;
30import android.os.Environment;
31import android.os.UserHandle;
32import android.util.AndroidException;
33import android.util.DisplayMetrics;
34
35import java.io.File;
36import java.util.List;
37
38/**
39 * Class for retrieving various kinds of information related to the application
40 * packages that are currently installed on the device.
41 *
42 * You can find this class through {@link Context#getPackageManager}.
43 */
44public abstract class PackageManager {
45
46    /**
47     * This exception is thrown when a given package, application, or component
48     * name can not be found.
49     */
50    public static class NameNotFoundException extends AndroidException {
51        public NameNotFoundException() {
52        }
53
54        public NameNotFoundException(String name) {
55            super(name);
56        }
57    }
58
59    /**
60     * {@link PackageInfo} flag: return information about
61     * activities in the package in {@link PackageInfo#activities}.
62     */
63    public static final int GET_ACTIVITIES              = 0x00000001;
64
65    /**
66     * {@link PackageInfo} flag: return information about
67     * intent receivers in the package in
68     * {@link PackageInfo#receivers}.
69     */
70    public static final int GET_RECEIVERS               = 0x00000002;
71
72    /**
73     * {@link PackageInfo} flag: return information about
74     * services in the package in {@link PackageInfo#services}.
75     */
76    public static final int GET_SERVICES                = 0x00000004;
77
78    /**
79     * {@link PackageInfo} flag: return information about
80     * content providers in the package in
81     * {@link PackageInfo#providers}.
82     */
83    public static final int GET_PROVIDERS               = 0x00000008;
84
85    /**
86     * {@link PackageInfo} flag: return information about
87     * instrumentation in the package in
88     * {@link PackageInfo#instrumentation}.
89     */
90    public static final int GET_INSTRUMENTATION         = 0x00000010;
91
92    /**
93     * {@link PackageInfo} flag: return information about the
94     * intent filters supported by the activity.
95     */
96    public static final int GET_INTENT_FILTERS          = 0x00000020;
97
98    /**
99     * {@link PackageInfo} flag: return information about the
100     * signatures included in the package.
101     */
102    public static final int GET_SIGNATURES          = 0x00000040;
103
104    /**
105     * {@link ResolveInfo} flag: return the IntentFilter that
106     * was matched for a particular ResolveInfo in
107     * {@link ResolveInfo#filter}.
108     */
109    public static final int GET_RESOLVED_FILTER         = 0x00000040;
110
111    /**
112     * {@link ComponentInfo} flag: return the {@link ComponentInfo#metaData}
113     * data {@link android.os.Bundle}s that are associated with a component.
114     * This applies for any API returning a ComponentInfo subclass.
115     */
116    public static final int GET_META_DATA               = 0x00000080;
117
118    /**
119     * {@link PackageInfo} flag: return the
120     * {@link PackageInfo#gids group ids} that are associated with an
121     * application.
122     * This applies for any API returning a PackageInfo class, either
123     * directly or nested inside of another.
124     */
125    public static final int GET_GIDS                    = 0x00000100;
126
127    /**
128     * {@link PackageInfo} flag: include disabled components in the returned info.
129     */
130    public static final int GET_DISABLED_COMPONENTS     = 0x00000200;
131
132    /**
133     * {@link ApplicationInfo} flag: return the
134     * {@link ApplicationInfo#sharedLibraryFiles paths to the shared libraries}
135     * that are associated with an application.
136     * This applies for any API returning an ApplicationInfo class, either
137     * directly or nested inside of another.
138     */
139    public static final int GET_SHARED_LIBRARY_FILES    = 0x00000400;
140
141    /**
142     * {@link ProviderInfo} flag: return the
143     * {@link ProviderInfo#uriPermissionPatterns URI permission patterns}
144     * that are associated with a content provider.
145     * This applies for any API returning a ProviderInfo class, either
146     * directly or nested inside of another.
147     */
148    public static final int GET_URI_PERMISSION_PATTERNS  = 0x00000800;
149    /**
150     * {@link PackageInfo} flag: return information about
151     * permissions in the package in
152     * {@link PackageInfo#permissions}.
153     */
154    public static final int GET_PERMISSIONS               = 0x00001000;
155
156    /**
157     * Flag parameter to retrieve some information about all applications (even
158     * uninstalled ones) which have data directories. This state could have
159     * resulted if applications have been deleted with flag
160     * {@code DONT_DELETE_DATA} with a possibility of being replaced or
161     * reinstalled in future.
162     * <p>
163     * Note: this flag may cause less information about currently installed
164     * applications to be returned.
165     */
166    public static final int GET_UNINSTALLED_PACKAGES = 0x00002000;
167
168    /**
169     * {@link PackageInfo} flag: return information about
170     * hardware preferences in
171     * {@link PackageInfo#configPreferences PackageInfo.configPreferences} and
172     * requested features in {@link PackageInfo#reqFeatures
173     * PackageInfo.reqFeatures}.
174     */
175    public static final int GET_CONFIGURATIONS = 0x00004000;
176
177    /**
178     * Resolution and querying flag: if set, only filters that support the
179     * {@link android.content.Intent#CATEGORY_DEFAULT} will be considered for
180     * matching.  This is a synonym for including the CATEGORY_DEFAULT in your
181     * supplied Intent.
182     */
183    public static final int MATCH_DEFAULT_ONLY   = 0x00010000;
184
185    /**
186     * Permission check result: this is returned by {@link #checkPermission}
187     * if the permission has been granted to the given package.
188     */
189    public static final int PERMISSION_GRANTED = 0;
190
191    /**
192     * Permission check result: this is returned by {@link #checkPermission}
193     * if the permission has not been granted to the given package.
194     */
195    public static final int PERMISSION_DENIED = -1;
196
197    /**
198     * Signature check result: this is returned by {@link #checkSignatures}
199     * if all signatures on the two packages match.
200     */
201    public static final int SIGNATURE_MATCH = 0;
202
203    /**
204     * Signature check result: this is returned by {@link #checkSignatures}
205     * if neither of the two packages is signed.
206     */
207    public static final int SIGNATURE_NEITHER_SIGNED = 1;
208
209    /**
210     * Signature check result: this is returned by {@link #checkSignatures}
211     * if the first package is not signed but the second is.
212     */
213    public static final int SIGNATURE_FIRST_NOT_SIGNED = -1;
214
215    /**
216     * Signature check result: this is returned by {@link #checkSignatures}
217     * if the second package is not signed but the first is.
218     */
219    public static final int SIGNATURE_SECOND_NOT_SIGNED = -2;
220
221    /**
222     * Signature check result: this is returned by {@link #checkSignatures}
223     * if not all signatures on both packages match.
224     */
225    public static final int SIGNATURE_NO_MATCH = -3;
226
227    /**
228     * Signature check result: this is returned by {@link #checkSignatures}
229     * if either of the packages are not valid.
230     */
231    public static final int SIGNATURE_UNKNOWN_PACKAGE = -4;
232
233    /**
234     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
235     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
236     * component or application is in its default enabled state (as specified
237     * in its manifest).
238     */
239    public static final int COMPONENT_ENABLED_STATE_DEFAULT = 0;
240
241    /**
242     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
243     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
244     * component or application has been explictily enabled, regardless of
245     * what it has specified in its manifest.
246     */
247    public static final int COMPONENT_ENABLED_STATE_ENABLED = 1;
248
249    /**
250     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
251     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
252     * component or application has been explicitly disabled, regardless of
253     * what it has specified in its manifest.
254     */
255    public static final int COMPONENT_ENABLED_STATE_DISABLED = 2;
256
257    /**
258     * Flag for {@link #setApplicationEnabledSetting(String, int, int)} only: The
259     * user has explicitly disabled the application, regardless of what it has
260     * specified in its manifest.  Because this is due to the user's request,
261     * they may re-enable it if desired through the appropriate system UI.  This
262     * option currently <strong>can not</strong> be used with
263     * {@link #setComponentEnabledSetting(ComponentName, int, int)}.
264     */
265    public static final int COMPONENT_ENABLED_STATE_DISABLED_USER = 3;
266
267    /**
268     * Flag parameter for {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} to
269     * indicate that this package should be installed as forward locked, i.e. only the app itself
270     * should have access to its code and non-resource assets.
271     * @hide
272     */
273    public static final int INSTALL_FORWARD_LOCK = 0x00000001;
274
275    /**
276     * Flag parameter for {@link #installPackage} to indicate that you want to replace an already
277     * installed package, if one exists.
278     * @hide
279     */
280    public static final int INSTALL_REPLACE_EXISTING = 0x00000002;
281
282    /**
283     * Flag parameter for {@link #installPackage} to indicate that you want to
284     * allow test packages (those that have set android:testOnly in their
285     * manifest) to be installed.
286     * @hide
287     */
288    public static final int INSTALL_ALLOW_TEST = 0x00000004;
289
290    /**
291     * Flag parameter for {@link #installPackage} to indicate that this
292     * package has to be installed on the sdcard.
293     * @hide
294     */
295    public static final int INSTALL_EXTERNAL = 0x00000008;
296
297    /**
298     * Flag parameter for {@link #installPackage} to indicate that this package
299     * has to be installed on the sdcard.
300     * @hide
301     */
302    public static final int INSTALL_INTERNAL = 0x00000010;
303
304    /**
305     * Flag parameter for {@link #installPackage} to indicate that this install
306     * was initiated via ADB.
307     *
308     * @hide
309     */
310    public static final int INSTALL_FROM_ADB = 0x00000020;
311
312    /**
313     * Flag parameter for {@link #installPackage} to indicate that this install
314     * should immediately be visible to all users.
315     *
316     * @hide
317     */
318    public static final int INSTALL_ALL_USERS = 0x00000040;
319
320    /**
321     * Flag parameter for {@link #installPackage} to indicate that it is okay
322     * to install an update to an app where the newly installed app has a lower
323     * version code than the currently installed app.
324     *
325     * @hide
326     */
327    public static final int INSTALL_ALLOW_DOWNGRADE = 0x00000080;
328
329    /**
330     * Flag parameter for
331     * {@link #setComponentEnabledSetting(android.content.ComponentName, int, int)} to indicate
332     * that you don't want to kill the app containing the component.  Be careful when you set this
333     * since changing component states can make the containing application's behavior unpredictable.
334     */
335    public static final int DONT_KILL_APP = 0x00000001;
336
337    /**
338     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
339     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} on success.
340     * @hide
341     */
342    public static final int INSTALL_SUCCEEDED = 1;
343
344    /**
345     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
346     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package is
347     * already installed.
348     * @hide
349     */
350    public static final int INSTALL_FAILED_ALREADY_EXISTS = -1;
351
352    /**
353     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
354     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package archive
355     * file is invalid.
356     * @hide
357     */
358    public static final int INSTALL_FAILED_INVALID_APK = -2;
359
360    /**
361     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
362     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the URI passed in
363     * is invalid.
364     * @hide
365     */
366    public static final int INSTALL_FAILED_INVALID_URI = -3;
367
368    /**
369     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
370     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package manager
371     * service found that the device didn't have enough storage space to install the app.
372     * @hide
373     */
374    public static final int INSTALL_FAILED_INSUFFICIENT_STORAGE = -4;
375
376    /**
377     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
378     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if a
379     * package is already installed with the same name.
380     * @hide
381     */
382    public static final int INSTALL_FAILED_DUPLICATE_PACKAGE = -5;
383
384    /**
385     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
386     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
387     * the requested shared user does not exist.
388     * @hide
389     */
390    public static final int INSTALL_FAILED_NO_SHARED_USER = -6;
391
392    /**
393     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
394     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
395     * a previously installed package of the same name has a different signature
396     * than the new package (and the old package's data was not removed).
397     * @hide
398     */
399    public static final int INSTALL_FAILED_UPDATE_INCOMPATIBLE = -7;
400
401    /**
402     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
403     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
404     * the new package is requested a shared user which is already installed on the
405     * device and does not have matching signature.
406     * @hide
407     */
408    public static final int INSTALL_FAILED_SHARED_USER_INCOMPATIBLE = -8;
409
410    /**
411     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
412     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
413     * the new package uses a shared library that is not available.
414     * @hide
415     */
416    public static final int INSTALL_FAILED_MISSING_SHARED_LIBRARY = -9;
417
418    /**
419     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
420     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
421     * the new package uses a shared library that is not available.
422     * @hide
423     */
424    public static final int INSTALL_FAILED_REPLACE_COULDNT_DELETE = -10;
425
426    /**
427     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
428     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
429     * the new package failed while optimizing and validating its dex files,
430     * either because there was not enough storage or the validation failed.
431     * @hide
432     */
433    public static final int INSTALL_FAILED_DEXOPT = -11;
434
435    /**
436     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
437     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
438     * the new package failed because the current SDK version is older than
439     * that required by the package.
440     * @hide
441     */
442    public static final int INSTALL_FAILED_OLDER_SDK = -12;
443
444    /**
445     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
446     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
447     * the new package failed because it contains a content provider with the
448     * same authority as a provider already installed in the system.
449     * @hide
450     */
451    public static final int INSTALL_FAILED_CONFLICTING_PROVIDER = -13;
452
453    /**
454     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
455     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
456     * the new package failed because the current SDK version is newer than
457     * that required by the package.
458     * @hide
459     */
460    public static final int INSTALL_FAILED_NEWER_SDK = -14;
461
462    /**
463     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
464     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
465     * the new package failed because it has specified that it is a test-only
466     * package and the caller has not supplied the {@link #INSTALL_ALLOW_TEST}
467     * flag.
468     * @hide
469     */
470    public static final int INSTALL_FAILED_TEST_ONLY = -15;
471
472    /**
473     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
474     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
475     * the package being installed contains native code, but none that is
476     * compatible with the the device's CPU_ABI.
477     * @hide
478     */
479    public static final int INSTALL_FAILED_CPU_ABI_INCOMPATIBLE = -16;
480
481    /**
482     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
483     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
484     * the new package uses a feature that is not available.
485     * @hide
486     */
487    public static final int INSTALL_FAILED_MISSING_FEATURE = -17;
488
489    // ------ Errors related to sdcard
490    /**
491     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
492     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
493     * a secure container mount point couldn't be accessed on external media.
494     * @hide
495     */
496    public static final int INSTALL_FAILED_CONTAINER_ERROR = -18;
497
498    /**
499     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
500     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
501     * the new package couldn't be installed in the specified install
502     * location.
503     * @hide
504     */
505    public static final int INSTALL_FAILED_INVALID_INSTALL_LOCATION = -19;
506
507    /**
508     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
509     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
510     * the new package couldn't be installed in the specified install
511     * location because the media is not available.
512     * @hide
513     */
514    public static final int INSTALL_FAILED_MEDIA_UNAVAILABLE = -20;
515
516    /**
517     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
518     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
519     * the new package couldn't be installed because the verification timed out.
520     * @hide
521     */
522    public static final int INSTALL_FAILED_VERIFICATION_TIMEOUT = -21;
523
524    /**
525     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
526     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
527     * the new package couldn't be installed because the verification did not succeed.
528     * @hide
529     */
530    public static final int INSTALL_FAILED_VERIFICATION_FAILURE = -22;
531
532    /**
533     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
534     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
535     * the package changed from what the calling program expected.
536     * @hide
537     */
538    public static final int INSTALL_FAILED_PACKAGE_CHANGED = -23;
539
540    /**
541     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
542     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
543     * the new package is assigned a different UID than it previously held.
544     * @hide
545     */
546    public static final int INSTALL_FAILED_UID_CHANGED = -24;
547
548    /**
549     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
550     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
551     * the new package has an older version code than the currently installed package.
552     * @hide
553     */
554    public static final int INSTALL_FAILED_VERSION_DOWNGRADE = -25;
555
556    /**
557     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
558     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
559     * if the parser was given a path that is not a file, or does not end with the expected
560     * '.apk' extension.
561     * @hide
562     */
563    public static final int INSTALL_PARSE_FAILED_NOT_APK = -100;
564
565    /**
566     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
567     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
568     * if the parser was unable to retrieve the AndroidManifest.xml file.
569     * @hide
570     */
571    public static final int INSTALL_PARSE_FAILED_BAD_MANIFEST = -101;
572
573    /**
574     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
575     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
576     * if the parser encountered an unexpected exception.
577     * @hide
578     */
579    public static final int INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION = -102;
580
581    /**
582     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
583     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
584     * if the parser did not find any certificates in the .apk.
585     * @hide
586     */
587    public static final int INSTALL_PARSE_FAILED_NO_CERTIFICATES = -103;
588
589    /**
590     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
591     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
592     * if the parser found inconsistent certificates on the files in the .apk.
593     * @hide
594     */
595    public static final int INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES = -104;
596
597    /**
598     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
599     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
600     * if the parser encountered a CertificateEncodingException in one of the
601     * files in the .apk.
602     * @hide
603     */
604    public static final int INSTALL_PARSE_FAILED_CERTIFICATE_ENCODING = -105;
605
606    /**
607     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
608     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
609     * if the parser encountered a bad or missing package name in the manifest.
610     * @hide
611     */
612    public static final int INSTALL_PARSE_FAILED_BAD_PACKAGE_NAME = -106;
613
614    /**
615     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
616     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
617     * if the parser encountered a bad shared user id name in the manifest.
618     * @hide
619     */
620    public static final int INSTALL_PARSE_FAILED_BAD_SHARED_USER_ID = -107;
621
622    /**
623     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
624     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
625     * if the parser encountered some structural problem in the manifest.
626     * @hide
627     */
628    public static final int INSTALL_PARSE_FAILED_MANIFEST_MALFORMED = -108;
629
630    /**
631     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
632     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
633     * if the parser did not find any actionable tags (instrumentation or application)
634     * in the manifest.
635     * @hide
636     */
637    public static final int INSTALL_PARSE_FAILED_MANIFEST_EMPTY = -109;
638
639    /**
640     * Installation failed return code: this is passed to the {@link IPackageInstallObserver} by
641     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
642     * if the system failed to install the package because of system issues.
643     * @hide
644     */
645    public static final int INSTALL_FAILED_INTERNAL_ERROR = -110;
646
647    /**
648     * Flag parameter for {@link #deletePackage} to indicate that you don't want to delete the
649     * package's data directory.
650     *
651     * @hide
652     */
653    public static final int DELETE_KEEP_DATA = 0x00000001;
654
655    /**
656     * Flag parameter for {@link #deletePackage} to indicate that you want the
657     * package deleted for all users.
658     *
659     * @hide
660     */
661    public static final int DELETE_ALL_USERS = 0x00000002;
662
663    /**
664     * Return code for when package deletion succeeds. This is passed to the
665     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
666     * succeeded in deleting the package.
667     *
668     * @hide
669     */
670    public static final int DELETE_SUCCEEDED = 1;
671
672    /**
673     * Deletion failed return code: this is passed to the
674     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
675     * failed to delete the package for an unspecified reason.
676     *
677     * @hide
678     */
679    public static final int DELETE_FAILED_INTERNAL_ERROR = -1;
680
681    /**
682     * Deletion failed return code: this is passed to the
683     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
684     * failed to delete the package because it is the active DevicePolicy
685     * manager.
686     *
687     * @hide
688     */
689    public static final int DELETE_FAILED_DEVICE_POLICY_MANAGER = -2;
690
691    /**
692     * Return code that is passed to the {@link IPackageMoveObserver} by
693     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)} when the
694     * package has been successfully moved by the system.
695     *
696     * @hide
697     */
698    public static final int MOVE_SUCCEEDED = 1;
699    /**
700     * Error code that is passed to the {@link IPackageMoveObserver} by
701     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
702     * when the package hasn't been successfully moved by the system
703     * because of insufficient memory on specified media.
704     * @hide
705     */
706    public static final int MOVE_FAILED_INSUFFICIENT_STORAGE = -1;
707
708    /**
709     * Error code that is passed to the {@link IPackageMoveObserver} by
710     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
711     * if the specified package doesn't exist.
712     * @hide
713     */
714    public static final int MOVE_FAILED_DOESNT_EXIST = -2;
715
716    /**
717     * Error code that is passed to the {@link IPackageMoveObserver} by
718     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
719     * if the specified package cannot be moved since its a system package.
720     * @hide
721     */
722    public static final int MOVE_FAILED_SYSTEM_PACKAGE = -3;
723
724    /**
725     * Error code that is passed to the {@link IPackageMoveObserver} by
726     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
727     * if the specified package cannot be moved since its forward locked.
728     * @hide
729     */
730    public static final int MOVE_FAILED_FORWARD_LOCKED = -4;
731
732    /**
733     * Error code that is passed to the {@link IPackageMoveObserver} by
734     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
735     * if the specified package cannot be moved to the specified location.
736     * @hide
737     */
738    public static final int MOVE_FAILED_INVALID_LOCATION = -5;
739
740    /**
741     * Error code that is passed to the {@link IPackageMoveObserver} by
742     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
743     * if the specified package cannot be moved to the specified location.
744     * @hide
745     */
746    public static final int MOVE_FAILED_INTERNAL_ERROR = -6;
747
748    /**
749     * Error code that is passed to the {@link IPackageMoveObserver} by
750     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)} if the
751     * specified package already has an operation pending in the
752     * {@link PackageHandler} queue.
753     *
754     * @hide
755     */
756    public static final int MOVE_FAILED_OPERATION_PENDING = -7;
757
758    /**
759     * Flag parameter for {@link #movePackage} to indicate that
760     * the package should be moved to internal storage if its
761     * been installed on external media.
762     * @hide
763     */
764    public static final int MOVE_INTERNAL = 0x00000001;
765
766    /**
767     * Flag parameter for {@link #movePackage} to indicate that
768     * the package should be moved to external media.
769     * @hide
770     */
771    public static final int MOVE_EXTERNAL_MEDIA = 0x00000002;
772
773    /**
774     * Usable by the required verifier as the {@code verificationCode} argument
775     * for {@link PackageManager#verifyPendingInstall} to indicate that it will
776     * allow the installation to proceed without any of the optional verifiers
777     * needing to vote.
778     *
779     * @hide
780     */
781    public static final int VERIFICATION_ALLOW_WITHOUT_SUFFICIENT = 2;
782
783    /**
784     * Used as the {@code verificationCode} argument for
785     * {@link PackageManager#verifyPendingInstall} to indicate that the calling
786     * package verifier allows the installation to proceed.
787     */
788    public static final int VERIFICATION_ALLOW = 1;
789
790    /**
791     * Used as the {@code verificationCode} argument for
792     * {@link PackageManager#verifyPendingInstall} to indicate the calling
793     * package verifier does not vote to allow the installation to proceed.
794     */
795    public static final int VERIFICATION_REJECT = -1;
796
797    /**
798     * Can be used as the {@code millisecondsToDelay} argument for
799     * {@link PackageManager#extendVerificationTimeout}. This is the
800     * maximum time {@code PackageManager} waits for the verification
801     * agent to return (in milliseconds).
802     */
803    public static final long MAXIMUM_VERIFICATION_TIMEOUT = 60*60*1000;
804
805    /**
806     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}: The device's
807     * audio pipeline is low-latency, more suitable for audio applications sensitive to delays or
808     * lag in sound input or output.
809     */
810    @SdkConstant(SdkConstantType.FEATURE)
811    public static final String FEATURE_AUDIO_LOW_LATENCY = "android.hardware.audio.low_latency";
812
813    /**
814     * Feature for {@link #getSystemAvailableFeatures} and
815     * {@link #hasSystemFeature}: The device is capable of communicating with
816     * other devices via Bluetooth.
817     */
818    @SdkConstant(SdkConstantType.FEATURE)
819    public static final String FEATURE_BLUETOOTH = "android.hardware.bluetooth";
820
821    /**
822     * Feature for {@link #getSystemAvailableFeatures} and
823     * {@link #hasSystemFeature}: The device has a camera facing away
824     * from the screen.
825     */
826    @SdkConstant(SdkConstantType.FEATURE)
827    public static final String FEATURE_CAMERA = "android.hardware.camera";
828
829    /**
830     * Feature for {@link #getSystemAvailableFeatures} and
831     * {@link #hasSystemFeature}: The device's camera supports auto-focus.
832     */
833    @SdkConstant(SdkConstantType.FEATURE)
834    public static final String FEATURE_CAMERA_AUTOFOCUS = "android.hardware.camera.autofocus";
835
836    /**
837     * Feature for {@link #getSystemAvailableFeatures} and
838     * {@link #hasSystemFeature}: The device has at least one camera pointing in
839     * some direction.
840     */
841    @SdkConstant(SdkConstantType.FEATURE)
842    public static final String FEATURE_CAMERA_ANY = "android.hardware.camera.any";
843
844    /**
845     * Feature for {@link #getSystemAvailableFeatures} and
846     * {@link #hasSystemFeature}: The device's camera supports flash.
847     */
848    @SdkConstant(SdkConstantType.FEATURE)
849    public static final String FEATURE_CAMERA_FLASH = "android.hardware.camera.flash";
850
851    /**
852     * Feature for {@link #getSystemAvailableFeatures} and
853     * {@link #hasSystemFeature}: The device has a front facing camera.
854     */
855    @SdkConstant(SdkConstantType.FEATURE)
856    public static final String FEATURE_CAMERA_FRONT = "android.hardware.camera.front";
857
858    /**
859     * Feature for {@link #getSystemAvailableFeatures} and
860     * {@link #hasSystemFeature}: The device supports one or more methods of
861     * reporting current location.
862     */
863    @SdkConstant(SdkConstantType.FEATURE)
864    public static final String FEATURE_LOCATION = "android.hardware.location";
865
866    /**
867     * Feature for {@link #getSystemAvailableFeatures} and
868     * {@link #hasSystemFeature}: The device has a Global Positioning System
869     * receiver and can report precise location.
870     */
871    @SdkConstant(SdkConstantType.FEATURE)
872    public static final String FEATURE_LOCATION_GPS = "android.hardware.location.gps";
873
874    /**
875     * Feature for {@link #getSystemAvailableFeatures} and
876     * {@link #hasSystemFeature}: The device can report location with coarse
877     * accuracy using a network-based geolocation system.
878     */
879    @SdkConstant(SdkConstantType.FEATURE)
880    public static final String FEATURE_LOCATION_NETWORK = "android.hardware.location.network";
881
882    /**
883     * Feature for {@link #getSystemAvailableFeatures} and
884     * {@link #hasSystemFeature}: The device can record audio via a
885     * microphone.
886     */
887    @SdkConstant(SdkConstantType.FEATURE)
888    public static final String FEATURE_MICROPHONE = "android.hardware.microphone";
889
890    /**
891     * Feature for {@link #getSystemAvailableFeatures} and
892     * {@link #hasSystemFeature}: The device can communicate using Near-Field
893     * Communications (NFC).
894     */
895    @SdkConstant(SdkConstantType.FEATURE)
896    public static final String FEATURE_NFC = "android.hardware.nfc";
897
898    /**
899     * Feature for {@link #getSystemAvailableFeatures} and
900     * {@link #hasSystemFeature}: The device includes an accelerometer.
901     */
902    @SdkConstant(SdkConstantType.FEATURE)
903    public static final String FEATURE_SENSOR_ACCELEROMETER = "android.hardware.sensor.accelerometer";
904
905    /**
906     * Feature for {@link #getSystemAvailableFeatures} and
907     * {@link #hasSystemFeature}: The device includes a barometer (air
908     * pressure sensor.)
909     */
910    @SdkConstant(SdkConstantType.FEATURE)
911    public static final String FEATURE_SENSOR_BAROMETER = "android.hardware.sensor.barometer";
912
913    /**
914     * Feature for {@link #getSystemAvailableFeatures} and
915     * {@link #hasSystemFeature}: The device includes a magnetometer (compass).
916     */
917    @SdkConstant(SdkConstantType.FEATURE)
918    public static final String FEATURE_SENSOR_COMPASS = "android.hardware.sensor.compass";
919
920    /**
921     * Feature for {@link #getSystemAvailableFeatures} and
922     * {@link #hasSystemFeature}: The device includes a gyroscope.
923     */
924    @SdkConstant(SdkConstantType.FEATURE)
925    public static final String FEATURE_SENSOR_GYROSCOPE = "android.hardware.sensor.gyroscope";
926
927    /**
928     * Feature for {@link #getSystemAvailableFeatures} and
929     * {@link #hasSystemFeature}: The device includes a light sensor.
930     */
931    @SdkConstant(SdkConstantType.FEATURE)
932    public static final String FEATURE_SENSOR_LIGHT = "android.hardware.sensor.light";
933
934    /**
935     * Feature for {@link #getSystemAvailableFeatures} and
936     * {@link #hasSystemFeature}: The device includes a proximity sensor.
937     */
938    @SdkConstant(SdkConstantType.FEATURE)
939    public static final String FEATURE_SENSOR_PROXIMITY = "android.hardware.sensor.proximity";
940
941    /**
942     * Feature for {@link #getSystemAvailableFeatures} and
943     * {@link #hasSystemFeature}: The device has a telephony radio with data
944     * communication support.
945     */
946    @SdkConstant(SdkConstantType.FEATURE)
947    public static final String FEATURE_TELEPHONY = "android.hardware.telephony";
948
949    /**
950     * Feature for {@link #getSystemAvailableFeatures} and
951     * {@link #hasSystemFeature}: The device has a CDMA telephony stack.
952     */
953    @SdkConstant(SdkConstantType.FEATURE)
954    public static final String FEATURE_TELEPHONY_CDMA = "android.hardware.telephony.cdma";
955
956    /**
957     * Feature for {@link #getSystemAvailableFeatures} and
958     * {@link #hasSystemFeature}: The device has a GSM telephony stack.
959     */
960    @SdkConstant(SdkConstantType.FEATURE)
961    public static final String FEATURE_TELEPHONY_GSM = "android.hardware.telephony.gsm";
962
963    /**
964     * Feature for {@link #getSystemAvailableFeatures} and
965     * {@link #hasSystemFeature}: The device supports connecting to USB devices
966     * as the USB host.
967     */
968    @SdkConstant(SdkConstantType.FEATURE)
969    public static final String FEATURE_USB_HOST = "android.hardware.usb.host";
970
971    /**
972     * Feature for {@link #getSystemAvailableFeatures} and
973     * {@link #hasSystemFeature}: The device supports connecting to USB accessories.
974     */
975    @SdkConstant(SdkConstantType.FEATURE)
976    public static final String FEATURE_USB_ACCESSORY = "android.hardware.usb.accessory";
977
978    /**
979     * Feature for {@link #getSystemAvailableFeatures} and
980     * {@link #hasSystemFeature}: The SIP API is enabled on the device.
981     */
982    @SdkConstant(SdkConstantType.FEATURE)
983    public static final String FEATURE_SIP = "android.software.sip";
984
985    /**
986     * Feature for {@link #getSystemAvailableFeatures} and
987     * {@link #hasSystemFeature}: The device supports SIP-based VOIP.
988     */
989    @SdkConstant(SdkConstantType.FEATURE)
990    public static final String FEATURE_SIP_VOIP = "android.software.sip.voip";
991
992    /**
993     * Feature for {@link #getSystemAvailableFeatures} and
994     * {@link #hasSystemFeature}: The device's display has a touch screen.
995     */
996    @SdkConstant(SdkConstantType.FEATURE)
997    public static final String FEATURE_TOUCHSCREEN = "android.hardware.touchscreen";
998
999
1000    /**
1001     * Feature for {@link #getSystemAvailableFeatures} and
1002     * {@link #hasSystemFeature}: The device's touch screen supports
1003     * multitouch sufficient for basic two-finger gesture detection.
1004     */
1005    @SdkConstant(SdkConstantType.FEATURE)
1006    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH = "android.hardware.touchscreen.multitouch";
1007
1008    /**
1009     * Feature for {@link #getSystemAvailableFeatures} and
1010     * {@link #hasSystemFeature}: The device's touch screen is capable of
1011     * tracking two or more fingers fully independently.
1012     */
1013    @SdkConstant(SdkConstantType.FEATURE)
1014    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT = "android.hardware.touchscreen.multitouch.distinct";
1015
1016    /**
1017     * Feature for {@link #getSystemAvailableFeatures} and
1018     * {@link #hasSystemFeature}: The device's touch screen is capable of
1019     * tracking a full hand of fingers fully independently -- that is, 5 or
1020     * more simultaneous independent pointers.
1021     */
1022    @SdkConstant(SdkConstantType.FEATURE)
1023    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND = "android.hardware.touchscreen.multitouch.jazzhand";
1024
1025    /**
1026     * Feature for {@link #getSystemAvailableFeatures} and
1027     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1028     * does support touch emulation for basic events. For instance, the
1029     * device might use a mouse or remote control to drive a cursor, and
1030     * emulate basic touch pointer events like down, up, drag, etc. All
1031     * devices that support android.hardware.touchscreen or a sub-feature are
1032     * presumed to also support faketouch.
1033     */
1034    @SdkConstant(SdkConstantType.FEATURE)
1035    public static final String FEATURE_FAKETOUCH = "android.hardware.faketouch";
1036
1037    /**
1038     * Feature for {@link #getSystemAvailableFeatures} and
1039     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1040     * does support touch emulation for basic events that supports distinct
1041     * tracking of two or more fingers.  This is an extension of
1042     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1043     * that unlike a distinct multitouch screen as defined by
1044     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT}, these kinds of input
1045     * devices will not actually provide full two-finger gestures since the
1046     * input is being transformed to cursor movement on the screen.  That is,
1047     * single finger gestures will move a cursor; two-finger swipes will
1048     * result in single-finger touch events; other two-finger gestures will
1049     * result in the corresponding two-finger touch event.
1050     */
1051    @SdkConstant(SdkConstantType.FEATURE)
1052    public static final String FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT = "android.hardware.faketouch.multitouch.distinct";
1053
1054    /**
1055     * Feature for {@link #getSystemAvailableFeatures} and
1056     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1057     * does support touch emulation for basic events that supports tracking
1058     * a hand of fingers (5 or more fingers) fully independently.
1059     * This is an extension of
1060     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1061     * that unlike a multitouch screen as defined by
1062     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND}, not all two finger
1063     * gestures can be detected due to the limitations described for
1064     * {@link #FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT}.
1065     */
1066    @SdkConstant(SdkConstantType.FEATURE)
1067    public static final String FEATURE_FAKETOUCH_MULTITOUCH_JAZZHAND = "android.hardware.faketouch.multitouch.jazzhand";
1068
1069    /**
1070     * Feature for {@link #getSystemAvailableFeatures} and
1071     * {@link #hasSystemFeature}: The device supports portrait orientation
1072     * screens.  For backwards compatibility, you can assume that if neither
1073     * this nor {@link #FEATURE_SCREEN_LANDSCAPE} is set then the device supports
1074     * both portrait and landscape.
1075     */
1076    @SdkConstant(SdkConstantType.FEATURE)
1077    public static final String FEATURE_SCREEN_PORTRAIT = "android.hardware.screen.portrait";
1078
1079    /**
1080     * Feature for {@link #getSystemAvailableFeatures} and
1081     * {@link #hasSystemFeature}: The device supports landscape orientation
1082     * screens.  For backwards compatibility, you can assume that if neither
1083     * this nor {@link #FEATURE_SCREEN_PORTRAIT} is set then the device supports
1084     * both portrait and landscape.
1085     */
1086    @SdkConstant(SdkConstantType.FEATURE)
1087    public static final String FEATURE_SCREEN_LANDSCAPE = "android.hardware.screen.landscape";
1088
1089    /**
1090     * Feature for {@link #getSystemAvailableFeatures} and
1091     * {@link #hasSystemFeature}: The device supports live wallpapers.
1092     */
1093    @SdkConstant(SdkConstantType.FEATURE)
1094    public static final String FEATURE_LIVE_WALLPAPER = "android.software.live_wallpaper";
1095
1096    /**
1097     * Feature for {@link #getSystemAvailableFeatures} and
1098     * {@link #hasSystemFeature}: The device supports WiFi (802.11) networking.
1099     */
1100    @SdkConstant(SdkConstantType.FEATURE)
1101    public static final String FEATURE_WIFI = "android.hardware.wifi";
1102
1103    /**
1104     * Feature for {@link #getSystemAvailableFeatures} and
1105     * {@link #hasSystemFeature}: The device supports Wi-Fi Direct networking.
1106     */
1107    @SdkConstant(SdkConstantType.FEATURE)
1108    public static final String FEATURE_WIFI_DIRECT = "android.hardware.wifi.direct";
1109
1110    /**
1111     * Feature for {@link #getSystemAvailableFeatures} and
1112     * {@link #hasSystemFeature}: This is a device dedicated to showing UI
1113     * on a television.  Television here is defined to be a typical living
1114     * room television experience: displayed on a big screen, where the user
1115     * is sitting far away from it, and the dominant form of input will be
1116     * something like a DPAD, not through touch or mouse.
1117     */
1118    @SdkConstant(SdkConstantType.FEATURE)
1119    public static final String FEATURE_TELEVISION = "android.hardware.type.television";
1120
1121    /**
1122     * Action to external storage service to clean out removed apps.
1123     * @hide
1124     */
1125    public static final String ACTION_CLEAN_EXTERNAL_STORAGE
1126            = "android.content.pm.CLEAN_EXTERNAL_STORAGE";
1127
1128    /**
1129     * Extra field name for the URI to a verification file. Passed to a package
1130     * verifier.
1131     *
1132     * @hide
1133     */
1134    public static final String EXTRA_VERIFICATION_URI = "android.content.pm.extra.VERIFICATION_URI";
1135
1136    /**
1137     * Extra field name for the ID of a package pending verification. Passed to
1138     * a package verifier and is used to call back to
1139     * {@link PackageManager#verifyPendingInstall(int, int)}
1140     */
1141    public static final String EXTRA_VERIFICATION_ID = "android.content.pm.extra.VERIFICATION_ID";
1142
1143    /**
1144     * Extra field name for the package identifier which is trying to install
1145     * the package.
1146     *
1147     * @hide
1148     */
1149    public static final String EXTRA_VERIFICATION_INSTALLER_PACKAGE
1150            = "android.content.pm.extra.VERIFICATION_INSTALLER_PACKAGE";
1151
1152    /**
1153     * Extra field name for the requested install flags for a package pending
1154     * verification. Passed to a package verifier.
1155     *
1156     * @hide
1157     */
1158    public static final String EXTRA_VERIFICATION_INSTALL_FLAGS
1159            = "android.content.pm.extra.VERIFICATION_INSTALL_FLAGS";
1160
1161    /**
1162     * Extra field name for the uid of who is requesting to install
1163     * the package.
1164     *
1165     * @hide
1166     */
1167    public static final String EXTRA_VERIFICATION_INSTALLER_UID
1168            = "android.content.pm.extra.VERIFICATION_INSTALLER_UID";
1169
1170    /**
1171     * Extra field name for the package name of a package pending verification.
1172     *
1173     * @hide
1174     */
1175    public static final String EXTRA_VERIFICATION_PACKAGE_NAME
1176            = "android.content.pm.extra.VERIFICATION_PACKAGE_NAME";
1177    /**
1178     * Extra field name for the result of a verification, either
1179     * {@link #VERIFICATION_ALLOW}, or {@link #VERIFICATION_REJECT}.
1180     * Passed to package verifiers after a package is verified.
1181     */
1182    public static final String EXTRA_VERIFICATION_RESULT
1183            = "android.content.pm.extra.VERIFICATION_RESULT";
1184
1185    /**
1186     * Extra field name for the version code of a package pending verification.
1187     *
1188     * @hide
1189     */
1190    public static final String EXTRA_VERIFICATION_VERSION_CODE
1191            = "android.content.pm.extra.VERIFICATION_VERSION_CODE";
1192
1193    /**
1194     * Retrieve overall information about an application package that is
1195     * installed on the system.
1196     * <p>
1197     * Throws {@link NameNotFoundException} if a package with the given name can
1198     * not be found on the system.
1199     *
1200     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1201     *            desired package.
1202     * @param flags Additional option flags. Use any combination of
1203     *            {@link #GET_ACTIVITIES}, {@link #GET_GIDS},
1204     *            {@link #GET_CONFIGURATIONS}, {@link #GET_INSTRUMENTATION},
1205     *            {@link #GET_PERMISSIONS}, {@link #GET_PROVIDERS},
1206     *            {@link #GET_RECEIVERS}, {@link #GET_SERVICES},
1207     *            {@link #GET_SIGNATURES}, {@link #GET_UNINSTALLED_PACKAGES} to
1208     *            modify the data returned.
1209     * @return Returns a PackageInfo object containing information about the
1210     *         package. If flag GET_UNINSTALLED_PACKAGES is set and if the
1211     *         package is not found in the list of installed applications, the
1212     *         package information is retrieved from the list of uninstalled
1213     *         applications(which includes installed applications as well as
1214     *         applications with data directory ie applications which had been
1215     *         deleted with DONT_DELTE_DATA flag set).
1216     * @see #GET_ACTIVITIES
1217     * @see #GET_GIDS
1218     * @see #GET_CONFIGURATIONS
1219     * @see #GET_INSTRUMENTATION
1220     * @see #GET_PERMISSIONS
1221     * @see #GET_PROVIDERS
1222     * @see #GET_RECEIVERS
1223     * @see #GET_SERVICES
1224     * @see #GET_SIGNATURES
1225     * @see #GET_UNINSTALLED_PACKAGES
1226     */
1227    public abstract PackageInfo getPackageInfo(String packageName, int flags)
1228            throws NameNotFoundException;
1229
1230    /**
1231     * Map from the current package names in use on the device to whatever
1232     * the current canonical name of that package is.
1233     * @param names Array of current names to be mapped.
1234     * @return Returns an array of the same size as the original, containing
1235     * the canonical name for each package.
1236     */
1237    public abstract String[] currentToCanonicalPackageNames(String[] names);
1238
1239    /**
1240     * Map from a packages canonical name to the current name in use on the device.
1241     * @param names Array of new names to be mapped.
1242     * @return Returns an array of the same size as the original, containing
1243     * the current name for each package.
1244     */
1245    public abstract String[] canonicalToCurrentPackageNames(String[] names);
1246
1247    /**
1248     * Return a "good" intent to launch a front-door activity in a package,
1249     * for use for example to implement an "open" button when browsing through
1250     * packages.  The current implementation will look first for a main
1251     * activity in the category {@link Intent#CATEGORY_INFO}, next for a
1252     * main activity in the category {@link Intent#CATEGORY_LAUNCHER}, or return
1253     * null if neither are found.
1254     *
1255     * <p>Throws {@link NameNotFoundException} if a package with the given
1256     * name can not be found on the system.
1257     *
1258     * @param packageName The name of the package to inspect.
1259     *
1260     * @return Returns either a fully-qualified Intent that can be used to
1261     * launch the main activity in the package, or null if the package does
1262     * not contain such an activity.
1263     */
1264    public abstract Intent getLaunchIntentForPackage(String packageName);
1265
1266    /**
1267     * Return an array of all of the secondary group-ids that have been
1268     * assigned to a package.
1269     *
1270     * <p>Throws {@link NameNotFoundException} if a package with the given
1271     * name can not be found on the system.
1272     *
1273     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1274     *                    desired package.
1275     *
1276     * @return Returns an int array of the assigned gids, or null if there
1277     * are none.
1278     */
1279    public abstract int[] getPackageGids(String packageName)
1280            throws NameNotFoundException;
1281
1282    /**
1283     * @hide Return the uid associated with the given package name for the
1284     * given user.
1285     *
1286     * <p>Throws {@link NameNotFoundException} if a package with the given
1287     * name can not be found on the system.
1288     *
1289     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1290     *                    desired package.
1291     * @param userHandle The user handle identifier to look up the package under.
1292     *
1293     * @return Returns an integer uid who owns the given package name.
1294     */
1295    public abstract int getPackageUid(String packageName, int userHandle)
1296            throws NameNotFoundException;
1297
1298    /**
1299     * Retrieve all of the information we know about a particular permission.
1300     *
1301     * <p>Throws {@link NameNotFoundException} if a permission with the given
1302     * name can not be found on the system.
1303     *
1304     * @param name The fully qualified name (i.e. com.google.permission.LOGIN)
1305     *             of the permission you are interested in.
1306     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1307     * retrieve any meta-data associated with the permission.
1308     *
1309     * @return Returns a {@link PermissionInfo} containing information about the
1310     *         permission.
1311     */
1312    public abstract PermissionInfo getPermissionInfo(String name, int flags)
1313            throws NameNotFoundException;
1314
1315    /**
1316     * Query for all of the permissions associated with a particular group.
1317     *
1318     * <p>Throws {@link NameNotFoundException} if the given group does not
1319     * exist.
1320     *
1321     * @param group The fully qualified name (i.e. com.google.permission.LOGIN)
1322     *             of the permission group you are interested in.  Use null to
1323     *             find all of the permissions not associated with a group.
1324     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1325     * retrieve any meta-data associated with the permissions.
1326     *
1327     * @return Returns a list of {@link PermissionInfo} containing information
1328     * about all of the permissions in the given group.
1329     */
1330    public abstract List<PermissionInfo> queryPermissionsByGroup(String group,
1331            int flags) throws NameNotFoundException;
1332
1333    /**
1334     * Retrieve all of the information we know about a particular group of
1335     * permissions.
1336     *
1337     * <p>Throws {@link NameNotFoundException} if a permission group with the given
1338     * name can not be found on the system.
1339     *
1340     * @param name The fully qualified name (i.e. com.google.permission_group.APPS)
1341     *             of the permission you are interested in.
1342     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1343     * retrieve any meta-data associated with the permission group.
1344     *
1345     * @return Returns a {@link PermissionGroupInfo} containing information
1346     * about the permission.
1347     */
1348    public abstract PermissionGroupInfo getPermissionGroupInfo(String name,
1349            int flags) throws NameNotFoundException;
1350
1351    /**
1352     * Retrieve all of the known permission groups in the system.
1353     *
1354     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1355     * retrieve any meta-data associated with the permission group.
1356     *
1357     * @return Returns a list of {@link PermissionGroupInfo} containing
1358     * information about all of the known permission groups.
1359     */
1360    public abstract List<PermissionGroupInfo> getAllPermissionGroups(int flags);
1361
1362    /**
1363     * Retrieve all of the information we know about a particular
1364     * package/application.
1365     *
1366     * <p>Throws {@link NameNotFoundException} if an application with the given
1367     * package name can not be found on the system.
1368     *
1369     * @param packageName The full name (i.e. com.google.apps.contacts) of an
1370     *                    application.
1371     * @param flags Additional option flags. Use any combination of
1372     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1373     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1374     *
1375     * @return  {@link ApplicationInfo} Returns ApplicationInfo object containing
1376     *         information about the package.
1377     *         If flag GET_UNINSTALLED_PACKAGES is set and  if the package is not
1378     *         found in the list of installed applications,
1379     *         the application information is retrieved from the
1380     *         list of uninstalled applications(which includes
1381     *         installed applications as well as applications
1382     *         with data directory ie applications which had been
1383     *         deleted with DONT_DELTE_DATA flag set).
1384     *
1385     * @see #GET_META_DATA
1386     * @see #GET_SHARED_LIBRARY_FILES
1387     * @see #GET_UNINSTALLED_PACKAGES
1388     */
1389    public abstract ApplicationInfo getApplicationInfo(String packageName,
1390            int flags) throws NameNotFoundException;
1391
1392    /**
1393     * Retrieve all of the information we know about a particular activity
1394     * class.
1395     *
1396     * <p>Throws {@link NameNotFoundException} if an activity with the given
1397     * class name can not be found on the system.
1398     *
1399     * @param component The full component name (i.e.
1400     * com.google.apps.contacts/com.google.apps.contacts.ContactsList) of an Activity
1401     * class.
1402     * @param flags Additional option flags. Use any combination of
1403     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1404     * to modify the data (in ApplicationInfo) returned.
1405     *
1406     * @return {@link ActivityInfo} containing information about the activity.
1407     *
1408     * @see #GET_INTENT_FILTERS
1409     * @see #GET_META_DATA
1410     * @see #GET_SHARED_LIBRARY_FILES
1411     */
1412    public abstract ActivityInfo getActivityInfo(ComponentName component,
1413            int flags) throws NameNotFoundException;
1414
1415    /**
1416     * Retrieve all of the information we know about a particular receiver
1417     * class.
1418     *
1419     * <p>Throws {@link NameNotFoundException} if a receiver with the given
1420     * class name can not be found on the system.
1421     *
1422     * @param component The full component name (i.e.
1423     * com.google.apps.calendar/com.google.apps.calendar.CalendarAlarm) of a Receiver
1424     * class.
1425     * @param flags Additional option flags.  Use any combination of
1426     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1427     * to modify the data returned.
1428     *
1429     * @return {@link ActivityInfo} containing information about the receiver.
1430     *
1431     * @see #GET_INTENT_FILTERS
1432     * @see #GET_META_DATA
1433     * @see #GET_SHARED_LIBRARY_FILES
1434     */
1435    public abstract ActivityInfo getReceiverInfo(ComponentName component,
1436            int flags) throws NameNotFoundException;
1437
1438    /**
1439     * Retrieve all of the information we know about a particular service
1440     * class.
1441     *
1442     * <p>Throws {@link NameNotFoundException} if a service with the given
1443     * class name can not be found on the system.
1444     *
1445     * @param component The full component name (i.e.
1446     * com.google.apps.media/com.google.apps.media.BackgroundPlayback) of a Service
1447     * class.
1448     * @param flags Additional option flags.  Use any combination of
1449     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1450     * to modify the data returned.
1451     *
1452     * @return ServiceInfo containing information about the service.
1453     *
1454     * @see #GET_META_DATA
1455     * @see #GET_SHARED_LIBRARY_FILES
1456     */
1457    public abstract ServiceInfo getServiceInfo(ComponentName component,
1458            int flags) throws NameNotFoundException;
1459
1460    /**
1461     * Retrieve all of the information we know about a particular content
1462     * provider class.
1463     *
1464     * <p>Throws {@link NameNotFoundException} if a provider with the given
1465     * class name can not be found on the system.
1466     *
1467     * @param component The full component name (i.e.
1468     * com.google.providers.media/com.google.providers.media.MediaProvider) of a
1469     * ContentProvider class.
1470     * @param flags Additional option flags.  Use any combination of
1471     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1472     * to modify the data returned.
1473     *
1474     * @return ProviderInfo containing information about the service.
1475     *
1476     * @see #GET_META_DATA
1477     * @see #GET_SHARED_LIBRARY_FILES
1478     */
1479    public abstract ProviderInfo getProviderInfo(ComponentName component,
1480            int flags) throws NameNotFoundException;
1481
1482    /**
1483     * Return a List of all packages that are installed
1484     * on the device.
1485     *
1486     * @param flags Additional option flags. Use any combination of
1487     * {@link #GET_ACTIVITIES},
1488     * {@link #GET_GIDS},
1489     * {@link #GET_CONFIGURATIONS},
1490     * {@link #GET_INSTRUMENTATION},
1491     * {@link #GET_PERMISSIONS},
1492     * {@link #GET_PROVIDERS},
1493     * {@link #GET_RECEIVERS},
1494     * {@link #GET_SERVICES},
1495     * {@link #GET_SIGNATURES},
1496     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1497     *
1498     * @return A List of PackageInfo objects, one for each package that is
1499     *         installed on the device.  In the unlikely case of there being no
1500     *         installed packages, an empty list is returned.
1501     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1502     *         applications including those deleted with DONT_DELETE_DATA
1503     *         (partially installed apps with data directory) will be returned.
1504     *
1505     * @see #GET_ACTIVITIES
1506     * @see #GET_GIDS
1507     * @see #GET_CONFIGURATIONS
1508     * @see #GET_INSTRUMENTATION
1509     * @see #GET_PERMISSIONS
1510     * @see #GET_PROVIDERS
1511     * @see #GET_RECEIVERS
1512     * @see #GET_SERVICES
1513     * @see #GET_SIGNATURES
1514     * @see #GET_UNINSTALLED_PACKAGES
1515     */
1516    public abstract List<PackageInfo> getInstalledPackages(int flags);
1517
1518    /**
1519     * Return a List of all installed packages that are currently
1520     * holding any of the given permissions.
1521     *
1522     * @param flags Additional option flags. Use any combination of
1523     * {@link #GET_ACTIVITIES},
1524     * {@link #GET_GIDS},
1525     * {@link #GET_CONFIGURATIONS},
1526     * {@link #GET_INSTRUMENTATION},
1527     * {@link #GET_PERMISSIONS},
1528     * {@link #GET_PROVIDERS},
1529     * {@link #GET_RECEIVERS},
1530     * {@link #GET_SERVICES},
1531     * {@link #GET_SIGNATURES},
1532     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1533     *
1534     * @return Returns a List of PackageInfo objects, one for each installed
1535     * application that is holding any of the permissions that were provided.
1536     *
1537     * @see #GET_ACTIVITIES
1538     * @see #GET_GIDS
1539     * @see #GET_CONFIGURATIONS
1540     * @see #GET_INSTRUMENTATION
1541     * @see #GET_PERMISSIONS
1542     * @see #GET_PROVIDERS
1543     * @see #GET_RECEIVERS
1544     * @see #GET_SERVICES
1545     * @see #GET_SIGNATURES
1546     * @see #GET_UNINSTALLED_PACKAGES
1547     */
1548    public abstract List<PackageInfo> getPackagesHoldingPermissions(
1549            String[] permissions, int flags);
1550
1551    /**
1552     * Return a List of all packages that are installed on the device, for a specific user.
1553     * Requesting a list of installed packages for another user
1554     * will require the permission INTERACT_ACROSS_USERS_FULL.
1555     * @param flags Additional option flags. Use any combination of
1556     * {@link #GET_ACTIVITIES},
1557     * {@link #GET_GIDS},
1558     * {@link #GET_CONFIGURATIONS},
1559     * {@link #GET_INSTRUMENTATION},
1560     * {@link #GET_PERMISSIONS},
1561     * {@link #GET_PROVIDERS},
1562     * {@link #GET_RECEIVERS},
1563     * {@link #GET_SERVICES},
1564     * {@link #GET_SIGNATURES},
1565     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1566     * @param userId The user for whom the installed packages are to be listed
1567     *
1568     * @return A List of PackageInfo objects, one for each package that is
1569     *         installed on the device.  In the unlikely case of there being no
1570     *         installed packages, an empty list is returned.
1571     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1572     *         applications including those deleted with DONT_DELETE_DATA
1573     *         (partially installed apps with data directory) will be returned.
1574     *
1575     * @see #GET_ACTIVITIES
1576     * @see #GET_GIDS
1577     * @see #GET_CONFIGURATIONS
1578     * @see #GET_INSTRUMENTATION
1579     * @see #GET_PERMISSIONS
1580     * @see #GET_PROVIDERS
1581     * @see #GET_RECEIVERS
1582     * @see #GET_SERVICES
1583     * @see #GET_SIGNATURES
1584     * @see #GET_UNINSTALLED_PACKAGES
1585     *
1586     * @hide
1587     */
1588    public abstract List<PackageInfo> getInstalledPackages(int flags, int userId);
1589
1590    /**
1591     * Check whether a particular package has been granted a particular
1592     * permission.
1593     *
1594     * @param permName The name of the permission you are checking for,
1595     * @param pkgName The name of the package you are checking against.
1596     *
1597     * @return If the package has the permission, PERMISSION_GRANTED is
1598     * returned.  If it does not have the permission, PERMISSION_DENIED
1599     * is returned.
1600     *
1601     * @see #PERMISSION_GRANTED
1602     * @see #PERMISSION_DENIED
1603     */
1604    public abstract int checkPermission(String permName, String pkgName);
1605
1606    /**
1607     * Add a new dynamic permission to the system.  For this to work, your
1608     * package must have defined a permission tree through the
1609     * {@link android.R.styleable#AndroidManifestPermissionTree
1610     * &lt;permission-tree&gt;} tag in its manifest.  A package can only add
1611     * permissions to trees that were defined by either its own package or
1612     * another with the same user id; a permission is in a tree if it
1613     * matches the name of the permission tree + ".": for example,
1614     * "com.foo.bar" is a member of the permission tree "com.foo".
1615     *
1616     * <p>It is good to make your permission tree name descriptive, because you
1617     * are taking possession of that entire set of permission names.  Thus, it
1618     * must be under a domain you control, with a suffix that will not match
1619     * any normal permissions that may be declared in any applications that
1620     * are part of that domain.
1621     *
1622     * <p>New permissions must be added before
1623     * any .apks are installed that use those permissions.  Permissions you
1624     * add through this method are remembered across reboots of the device.
1625     * If the given permission already exists, the info you supply here
1626     * will be used to update it.
1627     *
1628     * @param info Description of the permission to be added.
1629     *
1630     * @return Returns true if a new permission was created, false if an
1631     * existing one was updated.
1632     *
1633     * @throws SecurityException if you are not allowed to add the
1634     * given permission name.
1635     *
1636     * @see #removePermission(String)
1637     */
1638    public abstract boolean addPermission(PermissionInfo info);
1639
1640    /**
1641     * Like {@link #addPermission(PermissionInfo)} but asynchronously
1642     * persists the package manager state after returning from the call,
1643     * allowing it to return quicker and batch a series of adds at the
1644     * expense of no guarantee the added permission will be retained if
1645     * the device is rebooted before it is written.
1646     */
1647    public abstract boolean addPermissionAsync(PermissionInfo info);
1648
1649    /**
1650     * Removes a permission that was previously added with
1651     * {@link #addPermission(PermissionInfo)}.  The same ownership rules apply
1652     * -- you are only allowed to remove permissions that you are allowed
1653     * to add.
1654     *
1655     * @param name The name of the permission to remove.
1656     *
1657     * @throws SecurityException if you are not allowed to remove the
1658     * given permission name.
1659     *
1660     * @see #addPermission(PermissionInfo)
1661     */
1662    public abstract void removePermission(String name);
1663
1664    /**
1665     * Grant a permission to an application which the application does not
1666     * already have.  The permission must have been requested by the application,
1667     * but as an optional permission.  If the application is not allowed to
1668     * hold the permission, a SecurityException is thrown.
1669     * @hide
1670     *
1671     * @param packageName The name of the package that the permission will be
1672     * granted to.
1673     * @param permissionName The name of the permission.
1674     */
1675    public abstract void grantPermission(String packageName, String permissionName);
1676
1677    /**
1678     * Revoke a permission that was previously granted by {@link #grantPermission}.
1679     * @hide
1680     *
1681     * @param packageName The name of the package that the permission will be
1682     * granted to.
1683     * @param permissionName The name of the permission.
1684     */
1685    public abstract void revokePermission(String packageName, String permissionName);
1686
1687    /**
1688     * Compare the signatures of two packages to determine if the same
1689     * signature appears in both of them.  If they do contain the same
1690     * signature, then they are allowed special privileges when working
1691     * with each other: they can share the same user-id, run instrumentation
1692     * against each other, etc.
1693     *
1694     * @param pkg1 First package name whose signature will be compared.
1695     * @param pkg2 Second package name whose signature will be compared.
1696     *
1697     * @return Returns an integer indicating whether all signatures on the
1698     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
1699     * all signatures match or < 0 if there is not a match ({@link
1700     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
1701     *
1702     * @see #checkSignatures(int, int)
1703     * @see #SIGNATURE_MATCH
1704     * @see #SIGNATURE_NO_MATCH
1705     * @see #SIGNATURE_UNKNOWN_PACKAGE
1706     */
1707    public abstract int checkSignatures(String pkg1, String pkg2);
1708
1709    /**
1710     * Like {@link #checkSignatures(String, String)}, but takes UIDs of
1711     * the two packages to be checked.  This can be useful, for example,
1712     * when doing the check in an IPC, where the UID is the only identity
1713     * available.  It is functionally identical to determining the package
1714     * associated with the UIDs and checking their signatures.
1715     *
1716     * @param uid1 First UID whose signature will be compared.
1717     * @param uid2 Second UID whose signature will be compared.
1718     *
1719     * @return Returns an integer indicating whether all signatures on the
1720     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
1721     * all signatures match or < 0 if there is not a match ({@link
1722     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
1723     *
1724     * @see #checkSignatures(String, String)
1725     * @see #SIGNATURE_MATCH
1726     * @see #SIGNATURE_NO_MATCH
1727     * @see #SIGNATURE_UNKNOWN_PACKAGE
1728     */
1729    public abstract int checkSignatures(int uid1, int uid2);
1730
1731    /**
1732     * Retrieve the names of all packages that are associated with a particular
1733     * user id.  In most cases, this will be a single package name, the package
1734     * that has been assigned that user id.  Where there are multiple packages
1735     * sharing the same user id through the "sharedUserId" mechanism, all
1736     * packages with that id will be returned.
1737     *
1738     * @param uid The user id for which you would like to retrieve the
1739     * associated packages.
1740     *
1741     * @return Returns an array of one or more packages assigned to the user
1742     * id, or null if there are no known packages with the given id.
1743     */
1744    public abstract String[] getPackagesForUid(int uid);
1745
1746    /**
1747     * Retrieve the official name associated with a user id.  This name is
1748     * guaranteed to never change, though it is possibly for the underlying
1749     * user id to be changed.  That is, if you are storing information about
1750     * user ids in persistent storage, you should use the string returned
1751     * by this function instead of the raw user-id.
1752     *
1753     * @param uid The user id for which you would like to retrieve a name.
1754     * @return Returns a unique name for the given user id, or null if the
1755     * user id is not currently assigned.
1756     */
1757    public abstract String getNameForUid(int uid);
1758
1759    /**
1760     * Return the user id associated with a shared user name. Multiple
1761     * applications can specify a shared user name in their manifest and thus
1762     * end up using a common uid. This might be used for new applications
1763     * that use an existing shared user name and need to know the uid of the
1764     * shared user.
1765     *
1766     * @param sharedUserName The shared user name whose uid is to be retrieved.
1767     * @return Returns the uid associated with the shared user, or  NameNotFoundException
1768     * if the shared user name is not being used by any installed packages
1769     * @hide
1770     */
1771    public abstract int getUidForSharedUser(String sharedUserName)
1772            throws NameNotFoundException;
1773
1774    /**
1775     * Return a List of all application packages that are installed on the
1776     * device. If flag GET_UNINSTALLED_PACKAGES has been set, a list of all
1777     * applications including those deleted with DONT_DELETE_DATA (partially
1778     * installed apps with data directory) will be returned.
1779     *
1780     * @param flags Additional option flags. Use any combination of
1781     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1782     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1783     *
1784     * @return Returns a List of ApplicationInfo objects, one for each application that
1785     *         is installed on the device.  In the unlikely case of there being
1786     *         no installed applications, an empty list is returned.
1787     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1788     *         applications including those deleted with DONT_DELETE_DATA
1789     *         (partially installed apps with data directory) will be returned.
1790     *
1791     * @see #GET_META_DATA
1792     * @see #GET_SHARED_LIBRARY_FILES
1793     * @see #GET_UNINSTALLED_PACKAGES
1794     */
1795    public abstract List<ApplicationInfo> getInstalledApplications(int flags);
1796
1797    /**
1798     * Get a list of shared libraries that are available on the
1799     * system.
1800     *
1801     * @return An array of shared library names that are
1802     * available on the system, or null if none are installed.
1803     *
1804     */
1805    public abstract String[] getSystemSharedLibraryNames();
1806
1807    /**
1808     * Get a list of features that are available on the
1809     * system.
1810     *
1811     * @return An array of FeatureInfo classes describing the features
1812     * that are available on the system, or null if there are none(!!).
1813     */
1814    public abstract FeatureInfo[] getSystemAvailableFeatures();
1815
1816    /**
1817     * Check whether the given feature name is one of the available
1818     * features as returned by {@link #getSystemAvailableFeatures()}.
1819     *
1820     * @return Returns true if the devices supports the feature, else
1821     * false.
1822     */
1823    public abstract boolean hasSystemFeature(String name);
1824
1825    /**
1826     * Determine the best action to perform for a given Intent.  This is how
1827     * {@link Intent#resolveActivity} finds an activity if a class has not
1828     * been explicitly specified.
1829     *
1830     * <p><em>Note:</em> if using an implicit Intent (without an explicit ComponentName
1831     * specified), be sure to consider whether to set the {@link #MATCH_DEFAULT_ONLY}
1832     * only flag.  You need to do so to resolve the activity in the same way
1833     * that {@link android.content.Context#startActivity(Intent)} and
1834     * {@link android.content.Intent#resolveActivity(PackageManager)
1835     * Intent.resolveActivity(PackageManager)} do.</p>
1836     *
1837     * @param intent An intent containing all of the desired specification
1838     *               (action, data, type, category, and/or component).
1839     * @param flags Additional option flags.  The most important is
1840     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1841     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1842     *
1843     * @return Returns a ResolveInfo containing the final activity intent that
1844     *         was determined to be the best action.  Returns null if no
1845     *         matching activity was found. If multiple matching activities are
1846     *         found and there is no default set, returns a ResolveInfo
1847     *         containing something else, such as the activity resolver.
1848     *
1849     * @see #MATCH_DEFAULT_ONLY
1850     * @see #GET_INTENT_FILTERS
1851     * @see #GET_RESOLVED_FILTER
1852     */
1853    public abstract ResolveInfo resolveActivity(Intent intent, int flags);
1854
1855    /**
1856     * Determine the best action to perform for a given Intent for a given user. This
1857     * is how {@link Intent#resolveActivity} finds an activity if a class has not
1858     * been explicitly specified.
1859     *
1860     * <p><em>Note:</em> if using an implicit Intent (without an explicit ComponentName
1861     * specified), be sure to consider whether to set the {@link #MATCH_DEFAULT_ONLY}
1862     * only flag.  You need to do so to resolve the activity in the same way
1863     * that {@link android.content.Context#startActivity(Intent)} and
1864     * {@link android.content.Intent#resolveActivity(PackageManager)
1865     * Intent.resolveActivity(PackageManager)} do.</p>
1866     *
1867     * @param intent An intent containing all of the desired specification
1868     *               (action, data, type, category, and/or component).
1869     * @param flags Additional option flags.  The most important is
1870     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1871     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1872     * @param userId The user id.
1873     *
1874     * @return Returns a ResolveInfo containing the final activity intent that
1875     *         was determined to be the best action.  Returns null if no
1876     *         matching activity was found. If multiple matching activities are
1877     *         found and there is no default set, returns a ResolveInfo
1878     *         containing something else, such as the activity resolver.
1879     *
1880     * @see #MATCH_DEFAULT_ONLY
1881     * @see #GET_INTENT_FILTERS
1882     * @see #GET_RESOLVED_FILTER
1883     *
1884     * @hide
1885     */
1886    public abstract ResolveInfo resolveActivityAsUser(Intent intent, int flags, int userId);
1887
1888    /**
1889     * Retrieve all activities that can be performed for the given intent.
1890     *
1891     * @param intent The desired intent as per resolveActivity().
1892     * @param flags Additional option flags.  The most important is
1893     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1894     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1895     *
1896     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1897     *         Activity. These are ordered from best to worst match -- that
1898     *         is, the first item in the list is what is returned by
1899     *         {@link #resolveActivity}.  If there are no matching activities, an empty
1900     *         list is returned.
1901     *
1902     * @see #MATCH_DEFAULT_ONLY
1903     * @see #GET_INTENT_FILTERS
1904     * @see #GET_RESOLVED_FILTER
1905     */
1906    public abstract List<ResolveInfo> queryIntentActivities(Intent intent,
1907            int flags);
1908
1909    /**
1910     * Retrieve all activities that can be performed for the given intent, for a specific user.
1911     *
1912     * @param intent The desired intent as per resolveActivity().
1913     * @param flags Additional option flags.  The most important is
1914     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1915     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1916     *
1917     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1918     *         Activity. These are ordered from best to worst match -- that
1919     *         is, the first item in the list is what is returned by
1920     *         {@link #resolveActivity}.  If there are no matching activities, an empty
1921     *         list is returned.
1922     *
1923     * @see #MATCH_DEFAULT_ONLY
1924     * @see #GET_INTENT_FILTERS
1925     * @see #GET_RESOLVED_FILTER
1926     * @hide
1927     */
1928    public abstract List<ResolveInfo> queryIntentActivitiesAsUser(Intent intent,
1929            int flags, int userId);
1930
1931
1932    /**
1933     * Retrieve a set of activities that should be presented to the user as
1934     * similar options.  This is like {@link #queryIntentActivities}, except it
1935     * also allows you to supply a list of more explicit Intents that you would
1936     * like to resolve to particular options, and takes care of returning the
1937     * final ResolveInfo list in a reasonable order, with no duplicates, based
1938     * on those inputs.
1939     *
1940     * @param caller The class name of the activity that is making the
1941     *               request.  This activity will never appear in the output
1942     *               list.  Can be null.
1943     * @param specifics An array of Intents that should be resolved to the
1944     *                  first specific results.  Can be null.
1945     * @param intent The desired intent as per resolveActivity().
1946     * @param flags Additional option flags.  The most important is
1947     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1948     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1949     *
1950     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1951     *         Activity. These are ordered first by all of the intents resolved
1952     *         in <var>specifics</var> and then any additional activities that
1953     *         can handle <var>intent</var> but did not get included by one of
1954     *         the <var>specifics</var> intents.  If there are no matching
1955     *         activities, an empty list is returned.
1956     *
1957     * @see #MATCH_DEFAULT_ONLY
1958     * @see #GET_INTENT_FILTERS
1959     * @see #GET_RESOLVED_FILTER
1960     */
1961    public abstract List<ResolveInfo> queryIntentActivityOptions(
1962            ComponentName caller, Intent[] specifics, Intent intent, int flags);
1963
1964    /**
1965     * Retrieve all receivers that can handle a broadcast of the given intent.
1966     *
1967     * @param intent The desired intent as per resolveActivity().
1968     * @param flags Additional option flags.
1969     *
1970     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1971     *         Receiver. These are ordered from first to last in priority.  If
1972     *         there are no matching receivers, an empty list is returned.
1973     *
1974     * @see #MATCH_DEFAULT_ONLY
1975     * @see #GET_INTENT_FILTERS
1976     * @see #GET_RESOLVED_FILTER
1977     */
1978    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
1979            int flags);
1980
1981    /**
1982     * Retrieve all receivers that can handle a broadcast of the given intent, for a specific
1983     * user.
1984     *
1985     * @param intent The desired intent as per resolveActivity().
1986     * @param flags Additional option flags.
1987     * @param userId The userId of the user being queried.
1988     *
1989     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1990     *         Receiver. These are ordered from first to last in priority.  If
1991     *         there are no matching receivers, an empty list is returned.
1992     *
1993     * @see #MATCH_DEFAULT_ONLY
1994     * @see #GET_INTENT_FILTERS
1995     * @see #GET_RESOLVED_FILTER
1996     * @hide
1997     */
1998    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
1999            int flags, int userId);
2000
2001    /**
2002     * Determine the best service to handle for a given Intent.
2003     *
2004     * @param intent An intent containing all of the desired specification
2005     *               (action, data, type, category, and/or component).
2006     * @param flags Additional option flags.
2007     *
2008     * @return Returns a ResolveInfo containing the final service intent that
2009     *         was determined to be the best action.  Returns null if no
2010     *         matching service was found.
2011     *
2012     * @see #GET_INTENT_FILTERS
2013     * @see #GET_RESOLVED_FILTER
2014     */
2015    public abstract ResolveInfo resolveService(Intent intent, int flags);
2016
2017    /**
2018     * Retrieve all services that can match the given intent.
2019     *
2020     * @param intent The desired intent as per resolveService().
2021     * @param flags Additional option flags.
2022     *
2023     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2024     *         ServiceInfo. These are ordered from best to worst match -- that
2025     *         is, the first item in the list is what is returned by
2026     *         resolveService().  If there are no matching services, an empty
2027     *         list is returned.
2028     *
2029     * @see #GET_INTENT_FILTERS
2030     * @see #GET_RESOLVED_FILTER
2031     */
2032    public abstract List<ResolveInfo> queryIntentServices(Intent intent,
2033            int flags);
2034
2035    /**
2036     * Retrieve all services that can match the given intent for a given user.
2037     *
2038     * @param intent The desired intent as per resolveService().
2039     * @param flags Additional option flags.
2040     * @param userId The user id.
2041     *
2042     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2043     *         ServiceInfo. These are ordered from best to worst match -- that
2044     *         is, the first item in the list is what is returned by
2045     *         resolveService().  If there are no matching services, an empty
2046     *         list is returned.
2047     *
2048     * @see #GET_INTENT_FILTERS
2049     * @see #GET_RESOLVED_FILTER
2050     *
2051     * @hide
2052     */
2053    public abstract List<ResolveInfo> queryIntentServicesAsUser(Intent intent,
2054            int flags, int userId);
2055
2056    /**
2057     * Find a single content provider by its base path name.
2058     *
2059     * @param name The name of the provider to find.
2060     * @param flags Additional option flags.  Currently should always be 0.
2061     *
2062     * @return ContentProviderInfo Information about the provider, if found,
2063     *         else null.
2064     */
2065    public abstract ProviderInfo resolveContentProvider(String name,
2066            int flags);
2067
2068    /**
2069     * Retrieve content provider information.
2070     *
2071     * <p><em>Note: unlike most other methods, an empty result set is indicated
2072     * by a null return instead of an empty list.</em>
2073     *
2074     * @param processName If non-null, limits the returned providers to only
2075     *                    those that are hosted by the given process.  If null,
2076     *                    all content providers are returned.
2077     * @param uid If <var>processName</var> is non-null, this is the required
2078     *        uid owning the requested content providers.
2079     * @param flags Additional option flags.  Currently should always be 0.
2080     *
2081     * @return A List&lt;ContentProviderInfo&gt; containing one entry for each
2082     *         content provider either patching <var>processName</var> or, if
2083     *         <var>processName</var> is null, all known content providers.
2084     *         <em>If there are no matching providers, null is returned.</em>
2085     */
2086    public abstract List<ProviderInfo> queryContentProviders(
2087            String processName, int uid, int flags);
2088
2089    /**
2090     * Retrieve all of the information we know about a particular
2091     * instrumentation class.
2092     *
2093     * <p>Throws {@link NameNotFoundException} if instrumentation with the
2094     * given class name can not be found on the system.
2095     *
2096     * @param className The full name (i.e.
2097     *                  com.google.apps.contacts.InstrumentList) of an
2098     *                  Instrumentation class.
2099     * @param flags Additional option flags.  Currently should always be 0.
2100     *
2101     * @return InstrumentationInfo containing information about the
2102     *         instrumentation.
2103     */
2104    public abstract InstrumentationInfo getInstrumentationInfo(
2105            ComponentName className, int flags) throws NameNotFoundException;
2106
2107    /**
2108     * Retrieve information about available instrumentation code.  May be used
2109     * to retrieve either all instrumentation code, or only the code targeting
2110     * a particular package.
2111     *
2112     * @param targetPackage If null, all instrumentation is returned; only the
2113     *                      instrumentation targeting this package name is
2114     *                      returned.
2115     * @param flags Additional option flags.  Currently should always be 0.
2116     *
2117     * @return A List&lt;InstrumentationInfo&gt; containing one entry for each
2118     *         matching available Instrumentation.  Returns an empty list if
2119     *         there is no instrumentation available for the given package.
2120     */
2121    public abstract List<InstrumentationInfo> queryInstrumentation(
2122            String targetPackage, int flags);
2123
2124    /**
2125     * Retrieve an image from a package.  This is a low-level API used by
2126     * the various package manager info structures (such as
2127     * {@link ComponentInfo} to implement retrieval of their associated
2128     * icon.
2129     *
2130     * @param packageName The name of the package that this icon is coming from.
2131     * Can not be null.
2132     * @param resid The resource identifier of the desired image.  Can not be 0.
2133     * @param appInfo Overall information about <var>packageName</var>.  This
2134     * may be null, in which case the application information will be retrieved
2135     * for you if needed; if you already have this information around, it can
2136     * be much more efficient to supply it here.
2137     *
2138     * @return Returns a Drawable holding the requested image.  Returns null if
2139     * an image could not be found for any reason.
2140     */
2141    public abstract Drawable getDrawable(String packageName, int resid,
2142            ApplicationInfo appInfo);
2143
2144    /**
2145     * Retrieve the icon associated with an activity.  Given the full name of
2146     * an activity, retrieves the information about it and calls
2147     * {@link ComponentInfo#loadIcon ComponentInfo.loadIcon()} to return its icon.
2148     * If the activity can not be found, NameNotFoundException is thrown.
2149     *
2150     * @param activityName Name of the activity whose icon is to be retrieved.
2151     *
2152     * @return Returns the image of the icon, or the default activity icon if
2153     * it could not be found.  Does not return null.
2154     * @throws NameNotFoundException Thrown if the resources for the given
2155     * activity could not be loaded.
2156     *
2157     * @see #getActivityIcon(Intent)
2158     */
2159    public abstract Drawable getActivityIcon(ComponentName activityName)
2160            throws NameNotFoundException;
2161
2162    /**
2163     * Retrieve the icon associated with an Intent.  If intent.getClassName() is
2164     * set, this simply returns the result of
2165     * getActivityIcon(intent.getClassName()).  Otherwise it resolves the intent's
2166     * component and returns the icon associated with the resolved component.
2167     * If intent.getClassName() can not be found or the Intent can not be resolved
2168     * to a component, NameNotFoundException is thrown.
2169     *
2170     * @param intent The intent for which you would like to retrieve an icon.
2171     *
2172     * @return Returns the image of the icon, or the default activity icon if
2173     * it could not be found.  Does not return null.
2174     * @throws NameNotFoundException Thrown if the resources for application
2175     * matching the given intent could not be loaded.
2176     *
2177     * @see #getActivityIcon(ComponentName)
2178     */
2179    public abstract Drawable getActivityIcon(Intent intent)
2180            throws NameNotFoundException;
2181
2182    /**
2183     * Return the generic icon for an activity that is used when no specific
2184     * icon is defined.
2185     *
2186     * @return Drawable Image of the icon.
2187     */
2188    public abstract Drawable getDefaultActivityIcon();
2189
2190    /**
2191     * Retrieve the icon associated with an application.  If it has not defined
2192     * an icon, the default app icon is returned.  Does not return null.
2193     *
2194     * @param info Information about application being queried.
2195     *
2196     * @return Returns the image of the icon, or the default application icon
2197     * if it could not be found.
2198     *
2199     * @see #getApplicationIcon(String)
2200     */
2201    public abstract Drawable getApplicationIcon(ApplicationInfo info);
2202
2203    /**
2204     * Retrieve the icon associated with an application.  Given the name of the
2205     * application's package, retrieves the information about it and calls
2206     * getApplicationIcon() to return its icon. If the application can not be
2207     * found, NameNotFoundException is thrown.
2208     *
2209     * @param packageName Name of the package whose application icon is to be
2210     *                    retrieved.
2211     *
2212     * @return Returns the image of the icon, or the default application icon
2213     * if it could not be found.  Does not return null.
2214     * @throws NameNotFoundException Thrown if the resources for the given
2215     * application could not be loaded.
2216     *
2217     * @see #getApplicationIcon(ApplicationInfo)
2218     */
2219    public abstract Drawable getApplicationIcon(String packageName)
2220            throws NameNotFoundException;
2221
2222    /**
2223     * Retrieve the logo associated with an activity.  Given the full name of
2224     * an activity, retrieves the information about it and calls
2225     * {@link ComponentInfo#loadLogo ComponentInfo.loadLogo()} to return its logo.
2226     * If the activity can not be found, NameNotFoundException is thrown.
2227     *
2228     * @param activityName Name of the activity whose logo is to be retrieved.
2229     *
2230     * @return Returns the image of the logo or null if the activity has no
2231     * logo specified.
2232     *
2233     * @throws NameNotFoundException Thrown if the resources for the given
2234     * activity could not be loaded.
2235     *
2236     * @see #getActivityLogo(Intent)
2237     */
2238    public abstract Drawable getActivityLogo(ComponentName activityName)
2239            throws NameNotFoundException;
2240
2241    /**
2242     * Retrieve the logo associated with an Intent.  If intent.getClassName() is
2243     * set, this simply returns the result of
2244     * getActivityLogo(intent.getClassName()).  Otherwise it resolves the intent's
2245     * component and returns the logo associated with the resolved component.
2246     * If intent.getClassName() can not be found or the Intent can not be resolved
2247     * to a component, NameNotFoundException is thrown.
2248     *
2249     * @param intent The intent for which you would like to retrieve a logo.
2250     *
2251     * @return Returns the image of the logo, or null if the activity has no
2252     * logo specified.
2253     *
2254     * @throws NameNotFoundException Thrown if the resources for application
2255     * matching the given intent could not be loaded.
2256     *
2257     * @see #getActivityLogo(ComponentName)
2258     */
2259    public abstract Drawable getActivityLogo(Intent intent)
2260            throws NameNotFoundException;
2261
2262    /**
2263     * Retrieve the logo associated with an application.  If it has not specified
2264     * a logo, this method returns null.
2265     *
2266     * @param info Information about application being queried.
2267     *
2268     * @return Returns the image of the logo, or null if no logo is specified
2269     * by the application.
2270     *
2271     * @see #getApplicationLogo(String)
2272     */
2273    public abstract Drawable getApplicationLogo(ApplicationInfo info);
2274
2275    /**
2276     * Retrieve the logo associated with an application.  Given the name of the
2277     * application's package, retrieves the information about it and calls
2278     * getApplicationLogo() to return its logo. If the application can not be
2279     * found, NameNotFoundException is thrown.
2280     *
2281     * @param packageName Name of the package whose application logo is to be
2282     *                    retrieved.
2283     *
2284     * @return Returns the image of the logo, or null if no application logo
2285     * has been specified.
2286     *
2287     * @throws NameNotFoundException Thrown if the resources for the given
2288     * application could not be loaded.
2289     *
2290     * @see #getApplicationLogo(ApplicationInfo)
2291     */
2292    public abstract Drawable getApplicationLogo(String packageName)
2293            throws NameNotFoundException;
2294
2295    /**
2296     * Retrieve text from a package.  This is a low-level API used by
2297     * the various package manager info structures (such as
2298     * {@link ComponentInfo} to implement retrieval of their associated
2299     * labels and other text.
2300     *
2301     * @param packageName The name of the package that this text is coming from.
2302     * Can not be null.
2303     * @param resid The resource identifier of the desired text.  Can not be 0.
2304     * @param appInfo Overall information about <var>packageName</var>.  This
2305     * may be null, in which case the application information will be retrieved
2306     * for you if needed; if you already have this information around, it can
2307     * be much more efficient to supply it here.
2308     *
2309     * @return Returns a CharSequence holding the requested text.  Returns null
2310     * if the text could not be found for any reason.
2311     */
2312    public abstract CharSequence getText(String packageName, int resid,
2313            ApplicationInfo appInfo);
2314
2315    /**
2316     * Retrieve an XML file from a package.  This is a low-level API used to
2317     * retrieve XML meta data.
2318     *
2319     * @param packageName The name of the package that this xml is coming from.
2320     * Can not be null.
2321     * @param resid The resource identifier of the desired xml.  Can not be 0.
2322     * @param appInfo Overall information about <var>packageName</var>.  This
2323     * may be null, in which case the application information will be retrieved
2324     * for you if needed; if you already have this information around, it can
2325     * be much more efficient to supply it here.
2326     *
2327     * @return Returns an XmlPullParser allowing you to parse out the XML
2328     * data.  Returns null if the xml resource could not be found for any
2329     * reason.
2330     */
2331    public abstract XmlResourceParser getXml(String packageName, int resid,
2332            ApplicationInfo appInfo);
2333
2334    /**
2335     * Return the label to use for this application.
2336     *
2337     * @return Returns the label associated with this application, or null if
2338     * it could not be found for any reason.
2339     * @param info The application to get the label of
2340     */
2341    public abstract CharSequence getApplicationLabel(ApplicationInfo info);
2342
2343    /**
2344     * Retrieve the resources associated with an activity.  Given the full
2345     * name of an activity, retrieves the information about it and calls
2346     * getResources() to return its application's resources.  If the activity
2347     * can not be found, NameNotFoundException is thrown.
2348     *
2349     * @param activityName Name of the activity whose resources are to be
2350     *                     retrieved.
2351     *
2352     * @return Returns the application's Resources.
2353     * @throws NameNotFoundException Thrown if the resources for the given
2354     * application could not be loaded.
2355     *
2356     * @see #getResourcesForApplication(ApplicationInfo)
2357     */
2358    public abstract Resources getResourcesForActivity(ComponentName activityName)
2359            throws NameNotFoundException;
2360
2361    /**
2362     * Retrieve the resources for an application.  Throws NameNotFoundException
2363     * if the package is no longer installed.
2364     *
2365     * @param app Information about the desired application.
2366     *
2367     * @return Returns the application's Resources.
2368     * @throws NameNotFoundException Thrown if the resources for the given
2369     * application could not be loaded (most likely because it was uninstalled).
2370     */
2371    public abstract Resources getResourcesForApplication(ApplicationInfo app)
2372            throws NameNotFoundException;
2373
2374    /**
2375     * Retrieve the resources associated with an application.  Given the full
2376     * package name of an application, retrieves the information about it and
2377     * calls getResources() to return its application's resources.  If the
2378     * appPackageName can not be found, NameNotFoundException is thrown.
2379     *
2380     * @param appPackageName Package name of the application whose resources
2381     *                       are to be retrieved.
2382     *
2383     * @return Returns the application's Resources.
2384     * @throws NameNotFoundException Thrown if the resources for the given
2385     * application could not be loaded.
2386     *
2387     * @see #getResourcesForApplication(ApplicationInfo)
2388     */
2389    public abstract Resources getResourcesForApplication(String appPackageName)
2390            throws NameNotFoundException;
2391
2392    /** @hide */
2393    public abstract Resources getResourcesForApplicationAsUser(String appPackageName, int userId)
2394            throws NameNotFoundException;
2395
2396    /**
2397     * Retrieve overall information about an application package defined
2398     * in a package archive file
2399     *
2400     * @param archiveFilePath The path to the archive file
2401     * @param flags Additional option flags. Use any combination of
2402     * {@link #GET_ACTIVITIES},
2403     * {@link #GET_GIDS},
2404     * {@link #GET_CONFIGURATIONS},
2405     * {@link #GET_INSTRUMENTATION},
2406     * {@link #GET_PERMISSIONS},
2407     * {@link #GET_PROVIDERS},
2408     * {@link #GET_RECEIVERS},
2409     * {@link #GET_SERVICES},
2410     * {@link #GET_SIGNATURES}, to modify the data returned.
2411     *
2412     * @return Returns the information about the package. Returns
2413     * null if the package could not be successfully parsed.
2414     *
2415     * @see #GET_ACTIVITIES
2416     * @see #GET_GIDS
2417     * @see #GET_CONFIGURATIONS
2418     * @see #GET_INSTRUMENTATION
2419     * @see #GET_PERMISSIONS
2420     * @see #GET_PROVIDERS
2421     * @see #GET_RECEIVERS
2422     * @see #GET_SERVICES
2423     * @see #GET_SIGNATURES
2424     *
2425     */
2426    public PackageInfo getPackageArchiveInfo(String archiveFilePath, int flags) {
2427        PackageParser packageParser = new PackageParser(archiveFilePath);
2428        DisplayMetrics metrics = new DisplayMetrics();
2429        metrics.setToDefaults();
2430        final File sourceFile = new File(archiveFilePath);
2431        PackageParser.Package pkg = packageParser.parsePackage(
2432                sourceFile, archiveFilePath, metrics, 0);
2433        if (pkg == null) {
2434            return null;
2435        }
2436        if ((flags & GET_SIGNATURES) != 0) {
2437            packageParser.collectCertificates(pkg, 0);
2438        }
2439        PackageUserState state = new PackageUserState();
2440        return PackageParser.generatePackageInfo(pkg, null, flags, 0, 0, null, state);
2441    }
2442
2443    /**
2444     * @hide
2445     *
2446     * Install a package. Since this may take a little while, the result will
2447     * be posted back to the given observer.  An installation will fail if the calling context
2448     * lacks the {@link android.Manifest.permission#INSTALL_PACKAGES} permission, if the
2449     * package named in the package file's manifest is already installed, or if there's no space
2450     * available on the device.
2451     *
2452     * @param packageURI The location of the package file to install.  This can be a 'file:' or a
2453     * 'content:' URI.
2454     * @param observer An observer callback to get notified when the package installation is
2455     * complete. {@link IPackageInstallObserver#packageInstalled(String, int)} will be
2456     * called when that happens.  observer may be null to indicate that no callback is desired.
2457     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2458     * {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
2459     * @param installerPackageName Optional package name of the application that is performing the
2460     * installation. This identifies which market the package came from.
2461     */
2462    public abstract void installPackage(
2463            Uri packageURI, IPackageInstallObserver observer, int flags,
2464            String installerPackageName);
2465
2466    /**
2467     * Similar to
2468     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2469     * with an extra verification file provided.
2470     *
2471     * @param packageURI The location of the package file to install. This can
2472     *            be a 'file:' or a 'content:' URI.
2473     * @param observer An observer callback to get notified when the package
2474     *            installation is complete.
2475     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2476     *            will be called when that happens. observer may be null to
2477     *            indicate that no callback is desired.
2478     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2479     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}
2480     *            .
2481     * @param installerPackageName Optional package name of the application that
2482     *            is performing the installation. This identifies which market
2483     *            the package came from.
2484     * @param verificationURI The location of the supplementary verification
2485     *            file. This can be a 'file:' or a 'content:' URI. May be
2486     *            {@code null}.
2487     * @param manifestDigest an object that holds the digest of the package
2488     *            which can be used to verify ownership. May be {@code null}.
2489     * @param encryptionParams if the package to be installed is encrypted,
2490     *            these parameters describing the encryption and authentication
2491     *            used. May be {@code null}.
2492     * @hide
2493     */
2494    public abstract void installPackageWithVerification(Uri packageURI,
2495            IPackageInstallObserver observer, int flags, String installerPackageName,
2496            Uri verificationURI, ManifestDigest manifestDigest,
2497            ContainerEncryptionParams encryptionParams);
2498
2499    /**
2500     * Similar to
2501     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2502     * with an extra verification information provided.
2503     *
2504     * @param packageURI The location of the package file to install. This can
2505     *            be a 'file:' or a 'content:' URI.
2506     * @param observer An observer callback to get notified when the package
2507     *            installation is complete.
2508     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2509     *            will be called when that happens. observer may be null to
2510     *            indicate that no callback is desired.
2511     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2512     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}
2513     *            .
2514     * @param installerPackageName Optional package name of the application that
2515     *            is performing the installation. This identifies which market
2516     *            the package came from.
2517     * @param verificationParams an object that holds signal information to
2518     *            assist verification. May be {@code null}.
2519     * @param encryptionParams if the package to be installed is encrypted,
2520     *            these parameters describing the encryption and authentication
2521     *            used. May be {@code null}.
2522     *
2523     * @hide
2524     */
2525    public abstract void installPackageWithVerificationAndEncryption(Uri packageURI,
2526            IPackageInstallObserver observer, int flags, String installerPackageName,
2527            VerificationParams verificationParams,
2528            ContainerEncryptionParams encryptionParams);
2529
2530    /**
2531     * If there is already an application with the given package name installed
2532     * on the system for other users, also install it for the calling user.
2533     * @hide
2534     */
2535    public abstract int installExistingPackage(String packageName)
2536            throws NameNotFoundException;
2537
2538    /**
2539     * Allows a package listening to the
2540     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
2541     * broadcast} to respond to the package manager. The response must include
2542     * the {@code verificationCode} which is one of
2543     * {@link PackageManager#VERIFICATION_ALLOW} or
2544     * {@link PackageManager#VERIFICATION_REJECT}.
2545     *
2546     * @param id pending package identifier as passed via the
2547     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra
2548     * @param verificationCode either {@link PackageManager#VERIFICATION_ALLOW}
2549     *            or {@link PackageManager#VERIFICATION_REJECT}.
2550     * @throws SecurityException if the caller does not have the
2551     *            PACKAGE_VERIFICATION_AGENT permission.
2552     */
2553    public abstract void verifyPendingInstall(int id, int verificationCode);
2554
2555    /**
2556     * Allows a package listening to the
2557     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
2558     * broadcast} to extend the default timeout for a response and declare what
2559     * action to perform after the timeout occurs. The response must include
2560     * the {@code verificationCodeAtTimeout} which is one of
2561     * {@link PackageManager#VERIFICATION_ALLOW} or
2562     * {@link PackageManager#VERIFICATION_REJECT}.
2563     *
2564     * This method may only be called once per package id. Additional calls
2565     * will have no effect.
2566     *
2567     * @param id pending package identifier as passed via the
2568     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra
2569     * @param verificationCodeAtTimeout either
2570     *            {@link PackageManager#VERIFICATION_ALLOW} or
2571     *            {@link PackageManager#VERIFICATION_REJECT}. If
2572     *            {@code verificationCodeAtTimeout} is neither
2573     *            {@link PackageManager#VERIFICATION_ALLOW} or
2574     *            {@link PackageManager#VERIFICATION_REJECT}, then
2575     *            {@code verificationCodeAtTimeout} will default to
2576     *            {@link PackageManager#VERIFICATION_REJECT}.
2577     * @param millisecondsToDelay the amount of time requested for the timeout.
2578     *            Must be positive and less than
2579     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}. If
2580     *            {@code millisecondsToDelay} is out of bounds,
2581     *            {@code millisecondsToDelay} will be set to the closest in
2582     *            bounds value; namely, 0 or
2583     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}.
2584     * @throws SecurityException if the caller does not have the
2585     *            PACKAGE_VERIFICATION_AGENT permission.
2586     */
2587    public abstract void extendVerificationTimeout(int id,
2588            int verificationCodeAtTimeout, long millisecondsToDelay);
2589
2590    /**
2591     * Change the installer associated with a given package.  There are limitations
2592     * on how the installer package can be changed; in particular:
2593     * <ul>
2594     * <li> A SecurityException will be thrown if <var>installerPackageName</var>
2595     * is not signed with the same certificate as the calling application.
2596     * <li> A SecurityException will be thrown if <var>targetPackage</var> already
2597     * has an installer package, and that installer package is not signed with
2598     * the same certificate as the calling application.
2599     * </ul>
2600     *
2601     * @param targetPackage The installed package whose installer will be changed.
2602     * @param installerPackageName The package name of the new installer.  May be
2603     * null to clear the association.
2604     */
2605    public abstract void setInstallerPackageName(String targetPackage,
2606            String installerPackageName);
2607
2608    /**
2609     * Attempts to delete a package.  Since this may take a little while, the result will
2610     * be posted back to the given observer.  A deletion will fail if the calling context
2611     * lacks the {@link android.Manifest.permission#DELETE_PACKAGES} permission, if the
2612     * named package cannot be found, or if the named package is a "system package".
2613     * (TODO: include pointer to documentation on "system packages")
2614     *
2615     * @param packageName The name of the package to delete
2616     * @param observer An observer callback to get notified when the package deletion is
2617     * complete. {@link android.content.pm.IPackageDeleteObserver#packageDeleted(boolean)} will be
2618     * called when that happens.  observer may be null to indicate that no callback is desired.
2619     * @param flags - possible values: {@link #DELETE_KEEP_DATA},
2620     * {@link #DELETE_ALL_USERS}.
2621     *
2622     * @hide
2623     */
2624    public abstract void deletePackage(
2625            String packageName, IPackageDeleteObserver observer, int flags);
2626
2627    /**
2628     * Retrieve the package name of the application that installed a package. This identifies
2629     * which market the package came from.
2630     *
2631     * @param packageName The name of the package to query
2632     */
2633    public abstract String getInstallerPackageName(String packageName);
2634
2635    /**
2636     * Attempts to clear the user data directory of an application.
2637     * Since this may take a little while, the result will
2638     * be posted back to the given observer.  A deletion will fail if the
2639     * named package cannot be found, or if the named package is a "system package".
2640     *
2641     * @param packageName The name of the package
2642     * @param observer An observer callback to get notified when the operation is finished
2643     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
2644     * will be called when that happens.  observer may be null to indicate that
2645     * no callback is desired.
2646     *
2647     * @hide
2648     */
2649    public abstract void clearApplicationUserData(String packageName,
2650            IPackageDataObserver observer);
2651    /**
2652     * Attempts to delete the cache files associated with an application.
2653     * Since this may take a little while, the result will
2654     * be posted back to the given observer.  A deletion will fail if the calling context
2655     * lacks the {@link android.Manifest.permission#DELETE_CACHE_FILES} permission, if the
2656     * named package cannot be found, or if the named package is a "system package".
2657     *
2658     * @param packageName The name of the package to delete
2659     * @param observer An observer callback to get notified when the cache file deletion
2660     * is complete.
2661     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
2662     * will be called when that happens.  observer may be null to indicate that
2663     * no callback is desired.
2664     *
2665     * @hide
2666     */
2667    public abstract void deleteApplicationCacheFiles(String packageName,
2668            IPackageDataObserver observer);
2669
2670    /**
2671     * Free storage by deleting LRU sorted list of cache files across
2672     * all applications. If the currently available free storage
2673     * on the device is greater than or equal to the requested
2674     * free storage, no cache files are cleared. If the currently
2675     * available storage on the device is less than the requested
2676     * free storage, some or all of the cache files across
2677     * all applications are deleted (based on last accessed time)
2678     * to increase the free storage space on the device to
2679     * the requested value. There is no guarantee that clearing all
2680     * the cache files from all applications will clear up
2681     * enough storage to achieve the desired value.
2682     * @param freeStorageSize The number of bytes of storage to be
2683     * freed by the system. Say if freeStorageSize is XX,
2684     * and the current free storage is YY,
2685     * if XX is less than YY, just return. if not free XX-YY number
2686     * of bytes if possible.
2687     * @param observer call back used to notify when
2688     * the operation is completed
2689     *
2690     * @hide
2691     */
2692    public abstract void freeStorageAndNotify(long freeStorageSize, IPackageDataObserver observer);
2693
2694    /**
2695     * Free storage by deleting LRU sorted list of cache files across
2696     * all applications. If the currently available free storage
2697     * on the device is greater than or equal to the requested
2698     * free storage, no cache files are cleared. If the currently
2699     * available storage on the device is less than the requested
2700     * free storage, some or all of the cache files across
2701     * all applications are deleted (based on last accessed time)
2702     * to increase the free storage space on the device to
2703     * the requested value. There is no guarantee that clearing all
2704     * the cache files from all applications will clear up
2705     * enough storage to achieve the desired value.
2706     * @param freeStorageSize The number of bytes of storage to be
2707     * freed by the system. Say if freeStorageSize is XX,
2708     * and the current free storage is YY,
2709     * if XX is less than YY, just return. if not free XX-YY number
2710     * of bytes if possible.
2711     * @param pi IntentSender call back used to
2712     * notify when the operation is completed.May be null
2713     * to indicate that no call back is desired.
2714     *
2715     * @hide
2716     */
2717    public abstract void freeStorage(long freeStorageSize, IntentSender pi);
2718
2719    /**
2720     * Retrieve the size information for a package.
2721     * Since this may take a little while, the result will
2722     * be posted back to the given observer.  The calling context
2723     * should have the {@link android.Manifest.permission#GET_PACKAGE_SIZE} permission.
2724     *
2725     * @param packageName The name of the package whose size information is to be retrieved
2726     * @param userHandle The user whose size information should be retrieved.
2727     * @param observer An observer callback to get notified when the operation
2728     * is complete.
2729     * {@link android.content.pm.IPackageStatsObserver#onGetStatsCompleted(PackageStats, boolean)}
2730     * The observer's callback is invoked with a PackageStats object(containing the
2731     * code, data and cache sizes of the package) and a boolean value representing
2732     * the status of the operation. observer may be null to indicate that
2733     * no callback is desired.
2734     *
2735     * @hide
2736     */
2737    public abstract void getPackageSizeInfo(String packageName, int userHandle,
2738            IPackageStatsObserver observer);
2739
2740    /**
2741     * Like {@link #getPackageSizeInfo(String, int, IPackageStatsObserver)}, but
2742     * returns the size for the calling user.
2743     *
2744     * @hide
2745     */
2746    public void getPackageSizeInfo(String packageName, IPackageStatsObserver observer) {
2747        getPackageSizeInfo(packageName, UserHandle.myUserId(), observer);
2748    }
2749
2750    /**
2751     * @deprecated This function no longer does anything; it was an old
2752     * approach to managing preferred activities, which has been superceeded
2753     * (and conflicts with) the modern activity-based preferences.
2754     */
2755    @Deprecated
2756    public abstract void addPackageToPreferred(String packageName);
2757
2758    /**
2759     * @deprecated This function no longer does anything; it was an old
2760     * approach to managing preferred activities, which has been superceeded
2761     * (and conflicts with) the modern activity-based preferences.
2762     */
2763    @Deprecated
2764    public abstract void removePackageFromPreferred(String packageName);
2765
2766    /**
2767     * Retrieve the list of all currently configured preferred packages.  The
2768     * first package on the list is the most preferred, the last is the
2769     * least preferred.
2770     *
2771     * @param flags Additional option flags. Use any combination of
2772     * {@link #GET_ACTIVITIES},
2773     * {@link #GET_GIDS},
2774     * {@link #GET_CONFIGURATIONS},
2775     * {@link #GET_INSTRUMENTATION},
2776     * {@link #GET_PERMISSIONS},
2777     * {@link #GET_PROVIDERS},
2778     * {@link #GET_RECEIVERS},
2779     * {@link #GET_SERVICES},
2780     * {@link #GET_SIGNATURES}, to modify the data returned.
2781     *
2782     * @return Returns a list of PackageInfo objects describing each
2783     * preferred application, in order of preference.
2784     *
2785     * @see #GET_ACTIVITIES
2786     * @see #GET_GIDS
2787     * @see #GET_CONFIGURATIONS
2788     * @see #GET_INSTRUMENTATION
2789     * @see #GET_PERMISSIONS
2790     * @see #GET_PROVIDERS
2791     * @see #GET_RECEIVERS
2792     * @see #GET_SERVICES
2793     * @see #GET_SIGNATURES
2794     */
2795    public abstract List<PackageInfo> getPreferredPackages(int flags);
2796
2797    /**
2798     * @deprecated This is a protected API that should not have been available
2799     * to third party applications.  It is the platform's responsibility for
2800     * assigning preferred activities and this can not be directly modified.
2801     *
2802     * Add a new preferred activity mapping to the system.  This will be used
2803     * to automatically select the given activity component when
2804     * {@link Context#startActivity(Intent) Context.startActivity()} finds
2805     * multiple matching activities and also matches the given filter.
2806     *
2807     * @param filter The set of intents under which this activity will be
2808     * made preferred.
2809     * @param match The IntentFilter match category that this preference
2810     * applies to.
2811     * @param set The set of activities that the user was picking from when
2812     * this preference was made.
2813     * @param activity The component name of the activity that is to be
2814     * preferred.
2815     */
2816    @Deprecated
2817    public abstract void addPreferredActivity(IntentFilter filter, int match,
2818            ComponentName[] set, ComponentName activity);
2819
2820    /**
2821     * Same as {@link #addPreferredActivity(IntentFilter, int,
2822            ComponentName[], ComponentName)}, but with a specific userId to apply the preference
2823            to.
2824     * @hide
2825     */
2826    public void addPreferredActivity(IntentFilter filter, int match,
2827            ComponentName[] set, ComponentName activity, int userId) {
2828        throw new RuntimeException("Not implemented. Must override in a subclass.");
2829    }
2830
2831    /**
2832     * @deprecated This is a protected API that should not have been available
2833     * to third party applications.  It is the platform's responsibility for
2834     * assigning preferred activities and this can not be directly modified.
2835     *
2836     * Replaces an existing preferred activity mapping to the system, and if that were not present
2837     * adds a new preferred activity.  This will be used
2838     * to automatically select the given activity component when
2839     * {@link Context#startActivity(Intent) Context.startActivity()} finds
2840     * multiple matching activities and also matches the given filter.
2841     *
2842     * @param filter The set of intents under which this activity will be
2843     * made preferred.
2844     * @param match The IntentFilter match category that this preference
2845     * applies to.
2846     * @param set The set of activities that the user was picking from when
2847     * this preference was made.
2848     * @param activity The component name of the activity that is to be
2849     * preferred.
2850     * @hide
2851     */
2852    @Deprecated
2853    public abstract void replacePreferredActivity(IntentFilter filter, int match,
2854            ComponentName[] set, ComponentName activity);
2855
2856    /**
2857     * Remove all preferred activity mappings, previously added with
2858     * {@link #addPreferredActivity}, from the
2859     * system whose activities are implemented in the given package name.
2860     * An application can only clear its own package(s).
2861     *
2862     * @param packageName The name of the package whose preferred activity
2863     * mappings are to be removed.
2864     */
2865    public abstract void clearPackagePreferredActivities(String packageName);
2866
2867    /**
2868     * Retrieve all preferred activities, previously added with
2869     * {@link #addPreferredActivity}, that are
2870     * currently registered with the system.
2871     *
2872     * @param outFilters A list in which to place the filters of all of the
2873     * preferred activities, or null for none.
2874     * @param outActivities A list in which to place the component names of
2875     * all of the preferred activities, or null for none.
2876     * @param packageName An option package in which you would like to limit
2877     * the list.  If null, all activities will be returned; if non-null, only
2878     * those activities in the given package are returned.
2879     *
2880     * @return Returns the total number of registered preferred activities
2881     * (the number of distinct IntentFilter records, not the number of unique
2882     * activity components) that were found.
2883     */
2884    public abstract int getPreferredActivities(List<IntentFilter> outFilters,
2885            List<ComponentName> outActivities, String packageName);
2886
2887    /**
2888     * Set the enabled setting for a package component (activity, receiver, service, provider).
2889     * This setting will override any enabled state which may have been set by the component in its
2890     * manifest.
2891     *
2892     * @param componentName The component to enable
2893     * @param newState The new enabled state for the component.  The legal values for this state
2894     *                 are:
2895     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
2896     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
2897     *                   and
2898     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
2899     *                 The last one removes the setting, thereby restoring the component's state to
2900     *                 whatever was set in it's manifest (or enabled, by default).
2901     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
2902     */
2903    public abstract void setComponentEnabledSetting(ComponentName componentName,
2904            int newState, int flags);
2905
2906
2907    /**
2908     * Return the the enabled setting for a package component (activity,
2909     * receiver, service, provider).  This returns the last value set by
2910     * {@link #setComponentEnabledSetting(ComponentName, int, int)}; in most
2911     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
2912     * the value originally specified in the manifest has not been modified.
2913     *
2914     * @param componentName The component to retrieve.
2915     * @return Returns the current enabled state for the component.  May
2916     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
2917     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
2918     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
2919     * component's enabled state is based on the original information in
2920     * the manifest as found in {@link ComponentInfo}.
2921     */
2922    public abstract int getComponentEnabledSetting(ComponentName componentName);
2923
2924    /**
2925     * Set the enabled setting for an application
2926     * This setting will override any enabled state which may have been set by the application in
2927     * its manifest.  It also overrides the enabled state set in the manifest for any of the
2928     * application's components.  It does not override any enabled state set by
2929     * {@link #setComponentEnabledSetting} for any of the application's components.
2930     *
2931     * @param packageName The package name of the application to enable
2932     * @param newState The new enabled state for the component.  The legal values for this state
2933     *                 are:
2934     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
2935     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
2936     *                   and
2937     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
2938     *                 The last one removes the setting, thereby restoring the applications's state to
2939     *                 whatever was set in its manifest (or enabled, by default).
2940     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
2941     */
2942    public abstract void setApplicationEnabledSetting(String packageName,
2943            int newState, int flags);
2944
2945    /**
2946     * Return the the enabled setting for an application.  This returns
2947     * the last value set by
2948     * {@link #setApplicationEnabledSetting(String, int, int)}; in most
2949     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
2950     * the value originally specified in the manifest has not been modified.
2951     *
2952     * @param packageName The component to retrieve.
2953     * @return Returns the current enabled state for the component.  May
2954     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
2955     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
2956     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
2957     * application's enabled state is based on the original information in
2958     * the manifest as found in {@link ComponentInfo}.
2959     * @throws IllegalArgumentException if the named package does not exist.
2960     */
2961    public abstract int getApplicationEnabledSetting(String packageName);
2962
2963    /**
2964     * Return whether the device has been booted into safe mode.
2965     */
2966    public abstract boolean isSafeMode();
2967
2968    /**
2969     * Attempts to move package resources from internal to external media or vice versa.
2970     * Since this may take a little while, the result will
2971     * be posted back to the given observer.   This call may fail if the calling context
2972     * lacks the {@link android.Manifest.permission#MOVE_PACKAGE} permission, if the
2973     * named package cannot be found, or if the named package is a "system package".
2974     *
2975     * @param packageName The name of the package to delete
2976     * @param observer An observer callback to get notified when the package move is
2977     * complete. {@link android.content.pm.IPackageMoveObserver#packageMoved(boolean)} will be
2978     * called when that happens.  observer may be null to indicate that no callback is desired.
2979     * @param flags To indicate install location {@link #MOVE_INTERNAL} or
2980     * {@link #MOVE_EXTERNAL_MEDIA}
2981     *
2982     * @hide
2983     */
2984    public abstract void movePackage(
2985            String packageName, IPackageMoveObserver observer, int flags);
2986
2987    /**
2988     * Returns the device identity that verifiers can use to associate their scheme to a particular
2989     * device. This should not be used by anything other than a package verifier.
2990     *
2991     * @return identity that uniquely identifies current device
2992     * @hide
2993     */
2994    public abstract VerifierDeviceIdentity getVerifierDeviceIdentity();
2995
2996    /**
2997     * Returns the data directory for a particular user and package, given the uid of the package.
2998     * @param uid uid of the package, including the userId and appId
2999     * @param packageName name of the package
3000     * @return the user-specific data directory for the package
3001     * @hide
3002     */
3003    public static String getDataDirForUser(int userId, String packageName) {
3004        // TODO: This should be shared with Installer's knowledge of user directory
3005        return Environment.getDataDirectory().toString() + "/user/" + userId
3006                + "/" + packageName;
3007    }
3008}
3009