PackageManager.java revision 151ec4c9f8ca34625733730a4551a23eb97cda23
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's camera supports flash.
839     */
840    @SdkConstant(SdkConstantType.FEATURE)
841    public static final String FEATURE_CAMERA_FLASH = "android.hardware.camera.flash";
842
843    /**
844     * Feature for {@link #getSystemAvailableFeatures} and
845     * {@link #hasSystemFeature}: The device has a front facing camera.
846     */
847    @SdkConstant(SdkConstantType.FEATURE)
848    public static final String FEATURE_CAMERA_FRONT = "android.hardware.camera.front";
849
850    /**
851     * Feature for {@link #getSystemAvailableFeatures} and
852     * {@link #hasSystemFeature}: The device supports one or more methods of
853     * reporting current location.
854     */
855    @SdkConstant(SdkConstantType.FEATURE)
856    public static final String FEATURE_LOCATION = "android.hardware.location";
857
858    /**
859     * Feature for {@link #getSystemAvailableFeatures} and
860     * {@link #hasSystemFeature}: The device has a Global Positioning System
861     * receiver and can report precise location.
862     */
863    @SdkConstant(SdkConstantType.FEATURE)
864    public static final String FEATURE_LOCATION_GPS = "android.hardware.location.gps";
865
866    /**
867     * Feature for {@link #getSystemAvailableFeatures} and
868     * {@link #hasSystemFeature}: The device can report location with coarse
869     * accuracy using a network-based geolocation system.
870     */
871    @SdkConstant(SdkConstantType.FEATURE)
872    public static final String FEATURE_LOCATION_NETWORK = "android.hardware.location.network";
873
874    /**
875     * Feature for {@link #getSystemAvailableFeatures} and
876     * {@link #hasSystemFeature}: The device can record audio via a
877     * microphone.
878     */
879    @SdkConstant(SdkConstantType.FEATURE)
880    public static final String FEATURE_MICROPHONE = "android.hardware.microphone";
881
882    /**
883     * Feature for {@link #getSystemAvailableFeatures} and
884     * {@link #hasSystemFeature}: The device can communicate using Near-Field
885     * Communications (NFC).
886     */
887    @SdkConstant(SdkConstantType.FEATURE)
888    public static final String FEATURE_NFC = "android.hardware.nfc";
889
890    /**
891     * Feature for {@link #getSystemAvailableFeatures} and
892     * {@link #hasSystemFeature}: The device includes an accelerometer.
893     */
894    @SdkConstant(SdkConstantType.FEATURE)
895    public static final String FEATURE_SENSOR_ACCELEROMETER = "android.hardware.sensor.accelerometer";
896
897    /**
898     * Feature for {@link #getSystemAvailableFeatures} and
899     * {@link #hasSystemFeature}: The device includes a barometer (air
900     * pressure sensor.)
901     */
902    @SdkConstant(SdkConstantType.FEATURE)
903    public static final String FEATURE_SENSOR_BAROMETER = "android.hardware.sensor.barometer";
904
905    /**
906     * Feature for {@link #getSystemAvailableFeatures} and
907     * {@link #hasSystemFeature}: The device includes a magnetometer (compass).
908     */
909    @SdkConstant(SdkConstantType.FEATURE)
910    public static final String FEATURE_SENSOR_COMPASS = "android.hardware.sensor.compass";
911
912    /**
913     * Feature for {@link #getSystemAvailableFeatures} and
914     * {@link #hasSystemFeature}: The device includes a gyroscope.
915     */
916    @SdkConstant(SdkConstantType.FEATURE)
917    public static final String FEATURE_SENSOR_GYROSCOPE = "android.hardware.sensor.gyroscope";
918
919    /**
920     * Feature for {@link #getSystemAvailableFeatures} and
921     * {@link #hasSystemFeature}: The device includes a light sensor.
922     */
923    @SdkConstant(SdkConstantType.FEATURE)
924    public static final String FEATURE_SENSOR_LIGHT = "android.hardware.sensor.light";
925
926    /**
927     * Feature for {@link #getSystemAvailableFeatures} and
928     * {@link #hasSystemFeature}: The device includes a proximity sensor.
929     */
930    @SdkConstant(SdkConstantType.FEATURE)
931    public static final String FEATURE_SENSOR_PROXIMITY = "android.hardware.sensor.proximity";
932
933    /**
934     * Feature for {@link #getSystemAvailableFeatures} and
935     * {@link #hasSystemFeature}: The device has a telephony radio with data
936     * communication support.
937     */
938    @SdkConstant(SdkConstantType.FEATURE)
939    public static final String FEATURE_TELEPHONY = "android.hardware.telephony";
940
941    /**
942     * Feature for {@link #getSystemAvailableFeatures} and
943     * {@link #hasSystemFeature}: The device has a CDMA telephony stack.
944     */
945    @SdkConstant(SdkConstantType.FEATURE)
946    public static final String FEATURE_TELEPHONY_CDMA = "android.hardware.telephony.cdma";
947
948    /**
949     * Feature for {@link #getSystemAvailableFeatures} and
950     * {@link #hasSystemFeature}: The device has a GSM telephony stack.
951     */
952    @SdkConstant(SdkConstantType.FEATURE)
953    public static final String FEATURE_TELEPHONY_GSM = "android.hardware.telephony.gsm";
954
955    /**
956     * Feature for {@link #getSystemAvailableFeatures} and
957     * {@link #hasSystemFeature}: The device supports connecting to USB devices
958     * as the USB host.
959     */
960    @SdkConstant(SdkConstantType.FEATURE)
961    public static final String FEATURE_USB_HOST = "android.hardware.usb.host";
962
963    /**
964     * Feature for {@link #getSystemAvailableFeatures} and
965     * {@link #hasSystemFeature}: The device supports connecting to USB accessories.
966     */
967    @SdkConstant(SdkConstantType.FEATURE)
968    public static final String FEATURE_USB_ACCESSORY = "android.hardware.usb.accessory";
969
970    /**
971     * Feature for {@link #getSystemAvailableFeatures} and
972     * {@link #hasSystemFeature}: The SIP API is enabled on the device.
973     */
974    @SdkConstant(SdkConstantType.FEATURE)
975    public static final String FEATURE_SIP = "android.software.sip";
976
977    /**
978     * Feature for {@link #getSystemAvailableFeatures} and
979     * {@link #hasSystemFeature}: The device supports SIP-based VOIP.
980     */
981    @SdkConstant(SdkConstantType.FEATURE)
982    public static final String FEATURE_SIP_VOIP = "android.software.sip.voip";
983
984    /**
985     * Feature for {@link #getSystemAvailableFeatures} and
986     * {@link #hasSystemFeature}: The device's display has a touch screen.
987     */
988    @SdkConstant(SdkConstantType.FEATURE)
989    public static final String FEATURE_TOUCHSCREEN = "android.hardware.touchscreen";
990
991
992    /**
993     * Feature for {@link #getSystemAvailableFeatures} and
994     * {@link #hasSystemFeature}: The device's touch screen supports
995     * multitouch sufficient for basic two-finger gesture detection.
996     */
997    @SdkConstant(SdkConstantType.FEATURE)
998    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH = "android.hardware.touchscreen.multitouch";
999
1000    /**
1001     * Feature for {@link #getSystemAvailableFeatures} and
1002     * {@link #hasSystemFeature}: The device's touch screen is capable of
1003     * tracking two or more fingers fully independently.
1004     */
1005    @SdkConstant(SdkConstantType.FEATURE)
1006    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT = "android.hardware.touchscreen.multitouch.distinct";
1007
1008    /**
1009     * Feature for {@link #getSystemAvailableFeatures} and
1010     * {@link #hasSystemFeature}: The device's touch screen is capable of
1011     * tracking a full hand of fingers fully independently -- that is, 5 or
1012     * more simultaneous independent pointers.
1013     */
1014    @SdkConstant(SdkConstantType.FEATURE)
1015    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND = "android.hardware.touchscreen.multitouch.jazzhand";
1016
1017    /**
1018     * Feature for {@link #getSystemAvailableFeatures} and
1019     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1020     * does support touch emulation for basic events. For instance, the
1021     * device might use a mouse or remote control to drive a cursor, and
1022     * emulate basic touch pointer events like down, up, drag, etc. All
1023     * devices that support android.hardware.touchscreen or a sub-feature are
1024     * presumed to also support faketouch.
1025     */
1026    @SdkConstant(SdkConstantType.FEATURE)
1027    public static final String FEATURE_FAKETOUCH = "android.hardware.faketouch";
1028
1029    /**
1030     * Feature for {@link #getSystemAvailableFeatures} and
1031     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1032     * does support touch emulation for basic events that supports distinct
1033     * tracking of two or more fingers.  This is an extension of
1034     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1035     * that unlike a distinct multitouch screen as defined by
1036     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT}, these kinds of input
1037     * devices will not actually provide full two-finger gestures since the
1038     * input is being transformed to cursor movement on the screen.  That is,
1039     * single finger gestures will move a cursor; two-finger swipes will
1040     * result in single-finger touch events; other two-finger gestures will
1041     * result in the corresponding two-finger touch event.
1042     */
1043    @SdkConstant(SdkConstantType.FEATURE)
1044    public static final String FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT = "android.hardware.faketouch.multitouch.distinct";
1045
1046    /**
1047     * Feature for {@link #getSystemAvailableFeatures} and
1048     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1049     * does support touch emulation for basic events that supports tracking
1050     * a hand of fingers (5 or more fingers) fully independently.
1051     * This is an extension of
1052     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1053     * that unlike a multitouch screen as defined by
1054     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND}, not all two finger
1055     * gestures can be detected due to the limitations described for
1056     * {@link #FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT}.
1057     */
1058    @SdkConstant(SdkConstantType.FEATURE)
1059    public static final String FEATURE_FAKETOUCH_MULTITOUCH_JAZZHAND = "android.hardware.faketouch.multitouch.jazzhand";
1060
1061    /**
1062     * Feature for {@link #getSystemAvailableFeatures} and
1063     * {@link #hasSystemFeature}: The device supports portrait orientation
1064     * screens.  For backwards compatibility, you can assume that if neither
1065     * this nor {@link #FEATURE_SCREEN_LANDSCAPE} is set then the device supports
1066     * both portrait and landscape.
1067     */
1068    @SdkConstant(SdkConstantType.FEATURE)
1069    public static final String FEATURE_SCREEN_PORTRAIT = "android.hardware.screen.portrait";
1070
1071    /**
1072     * Feature for {@link #getSystemAvailableFeatures} and
1073     * {@link #hasSystemFeature}: The device supports landscape orientation
1074     * screens.  For backwards compatibility, you can assume that if neither
1075     * this nor {@link #FEATURE_SCREEN_PORTRAIT} is set then the device supports
1076     * both portrait and landscape.
1077     */
1078    @SdkConstant(SdkConstantType.FEATURE)
1079    public static final String FEATURE_SCREEN_LANDSCAPE = "android.hardware.screen.landscape";
1080
1081    /**
1082     * Feature for {@link #getSystemAvailableFeatures} and
1083     * {@link #hasSystemFeature}: The device supports live wallpapers.
1084     */
1085    @SdkConstant(SdkConstantType.FEATURE)
1086    public static final String FEATURE_LIVE_WALLPAPER = "android.software.live_wallpaper";
1087
1088    /**
1089     * Feature for {@link #getSystemAvailableFeatures} and
1090     * {@link #hasSystemFeature}: The device supports WiFi (802.11) networking.
1091     */
1092    @SdkConstant(SdkConstantType.FEATURE)
1093    public static final String FEATURE_WIFI = "android.hardware.wifi";
1094
1095    /**
1096     * Feature for {@link #getSystemAvailableFeatures} and
1097     * {@link #hasSystemFeature}: The device supports Wi-Fi Direct networking.
1098     */
1099    @SdkConstant(SdkConstantType.FEATURE)
1100    public static final String FEATURE_WIFI_DIRECT = "android.hardware.wifi.direct";
1101
1102    /**
1103     * Feature for {@link #getSystemAvailableFeatures} and
1104     * {@link #hasSystemFeature}: This is a device dedicated to showing UI
1105     * on a television.  Television here is defined to be a typical living
1106     * room television experience: displayed on a big screen, where the user
1107     * is sitting far away from it, and the dominant form of input will be
1108     * something like a DPAD, not through touch or mouse.
1109     */
1110    @SdkConstant(SdkConstantType.FEATURE)
1111    public static final String FEATURE_TELEVISION = "android.hardware.type.television";
1112
1113    /**
1114     * Action to external storage service to clean out removed apps.
1115     * @hide
1116     */
1117    public static final String ACTION_CLEAN_EXTERNAL_STORAGE
1118            = "android.content.pm.CLEAN_EXTERNAL_STORAGE";
1119
1120    /**
1121     * Extra field name for the URI to a verification file. Passed to a package
1122     * verifier.
1123     *
1124     * @hide
1125     */
1126    public static final String EXTRA_VERIFICATION_URI = "android.content.pm.extra.VERIFICATION_URI";
1127
1128    /**
1129     * Extra field name for the ID of a package pending verification. Passed to
1130     * a package verifier and is used to call back to
1131     * {@link PackageManager#verifyPendingInstall(int, int)}
1132     */
1133    public static final String EXTRA_VERIFICATION_ID = "android.content.pm.extra.VERIFICATION_ID";
1134
1135    /**
1136     * Extra field name for the package identifier which is trying to install
1137     * the package.
1138     *
1139     * @hide
1140     */
1141    public static final String EXTRA_VERIFICATION_INSTALLER_PACKAGE
1142            = "android.content.pm.extra.VERIFICATION_INSTALLER_PACKAGE";
1143
1144    /**
1145     * Extra field name for the requested install flags for a package pending
1146     * verification. Passed to a package verifier.
1147     *
1148     * @hide
1149     */
1150    public static final String EXTRA_VERIFICATION_INSTALL_FLAGS
1151            = "android.content.pm.extra.VERIFICATION_INSTALL_FLAGS";
1152
1153    /**
1154     * Extra field name for the result of a verification, either
1155     * {@link #VERIFICATION_ALLOW}, or {@link #VERIFICATION_REJECT}.
1156     * Passed to package verifiers after a package is verified.
1157     */
1158    public static final String EXTRA_VERIFICATION_RESULT
1159            = "android.content.pm.extra.VERIFICATION_RESULT";
1160
1161    /**
1162     * Retrieve overall information about an application package that is
1163     * installed on the system.
1164     * <p>
1165     * Throws {@link NameNotFoundException} if a package with the given name can
1166     * not be found on the system.
1167     *
1168     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1169     *            desired package.
1170     * @param flags Additional option flags. Use any combination of
1171     *            {@link #GET_ACTIVITIES}, {@link #GET_GIDS},
1172     *            {@link #GET_CONFIGURATIONS}, {@link #GET_INSTRUMENTATION},
1173     *            {@link #GET_PERMISSIONS}, {@link #GET_PROVIDERS},
1174     *            {@link #GET_RECEIVERS}, {@link #GET_SERVICES},
1175     *            {@link #GET_SIGNATURES}, {@link #GET_UNINSTALLED_PACKAGES} to
1176     *            modify the data returned.
1177     * @return Returns a PackageInfo object containing information about the
1178     *         package. If flag GET_UNINSTALLED_PACKAGES is set and if the
1179     *         package is not found in the list of installed applications, the
1180     *         package information is retrieved from the list of uninstalled
1181     *         applications(which includes installed applications as well as
1182     *         applications with data directory ie applications which had been
1183     *         deleted with DONT_DELTE_DATA flag set).
1184     * @see #GET_ACTIVITIES
1185     * @see #GET_GIDS
1186     * @see #GET_CONFIGURATIONS
1187     * @see #GET_INSTRUMENTATION
1188     * @see #GET_PERMISSIONS
1189     * @see #GET_PROVIDERS
1190     * @see #GET_RECEIVERS
1191     * @see #GET_SERVICES
1192     * @see #GET_SIGNATURES
1193     * @see #GET_UNINSTALLED_PACKAGES
1194     */
1195    public abstract PackageInfo getPackageInfo(String packageName, int flags)
1196            throws NameNotFoundException;
1197
1198    /**
1199     * Map from the current package names in use on the device to whatever
1200     * the current canonical name of that package is.
1201     * @param names Array of current names to be mapped.
1202     * @return Returns an array of the same size as the original, containing
1203     * the canonical name for each package.
1204     */
1205    public abstract String[] currentToCanonicalPackageNames(String[] names);
1206
1207    /**
1208     * Map from a packages canonical name to the current name in use on the device.
1209     * @param names Array of new names to be mapped.
1210     * @return Returns an array of the same size as the original, containing
1211     * the current name for each package.
1212     */
1213    public abstract String[] canonicalToCurrentPackageNames(String[] names);
1214
1215    /**
1216     * Return a "good" intent to launch a front-door activity in a package,
1217     * for use for example to implement an "open" button when browsing through
1218     * packages.  The current implementation will look first for a main
1219     * activity in the category {@link Intent#CATEGORY_INFO}, next for a
1220     * main activity in the category {@link Intent#CATEGORY_LAUNCHER}, or return
1221     * null if neither are found.
1222     *
1223     * <p>Throws {@link NameNotFoundException} if a package with the given
1224     * name can not be found on the system.
1225     *
1226     * @param packageName The name of the package to inspect.
1227     *
1228     * @return Returns either a fully-qualified Intent that can be used to
1229     * launch the main activity in the package, or null if the package does
1230     * not contain such an activity.
1231     */
1232    public abstract Intent getLaunchIntentForPackage(String packageName);
1233
1234    /**
1235     * Return an array of all of the secondary group-ids that have been
1236     * assigned to a package.
1237     *
1238     * <p>Throws {@link NameNotFoundException} if a package with the given
1239     * name can not be found on the system.
1240     *
1241     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1242     *                    desired package.
1243     *
1244     * @return Returns an int array of the assigned gids, or null if there
1245     * are none.
1246     */
1247    public abstract int[] getPackageGids(String packageName)
1248            throws NameNotFoundException;
1249
1250    /**
1251     * Retrieve all of the information we know about a particular permission.
1252     *
1253     * <p>Throws {@link NameNotFoundException} if a permission with the given
1254     * name can not be found on the system.
1255     *
1256     * @param name The fully qualified name (i.e. com.google.permission.LOGIN)
1257     *             of the permission you are interested in.
1258     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1259     * retrieve any meta-data associated with the permission.
1260     *
1261     * @return Returns a {@link PermissionInfo} containing information about the
1262     *         permission.
1263     */
1264    public abstract PermissionInfo getPermissionInfo(String name, int flags)
1265            throws NameNotFoundException;
1266
1267    /**
1268     * Query for all of the permissions associated with a particular group.
1269     *
1270     * <p>Throws {@link NameNotFoundException} if the given group does not
1271     * exist.
1272     *
1273     * @param group The fully qualified name (i.e. com.google.permission.LOGIN)
1274     *             of the permission group you are interested in.  Use null to
1275     *             find all of the permissions not associated with a group.
1276     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1277     * retrieve any meta-data associated with the permissions.
1278     *
1279     * @return Returns a list of {@link PermissionInfo} containing information
1280     * about all of the permissions in the given group.
1281     */
1282    public abstract List<PermissionInfo> queryPermissionsByGroup(String group,
1283            int flags) throws NameNotFoundException;
1284
1285    /**
1286     * Retrieve all of the information we know about a particular group of
1287     * permissions.
1288     *
1289     * <p>Throws {@link NameNotFoundException} if a permission group with the given
1290     * name can not be found on the system.
1291     *
1292     * @param name The fully qualified name (i.e. com.google.permission_group.APPS)
1293     *             of the permission you are interested in.
1294     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1295     * retrieve any meta-data associated with the permission group.
1296     *
1297     * @return Returns a {@link PermissionGroupInfo} containing information
1298     * about the permission.
1299     */
1300    public abstract PermissionGroupInfo getPermissionGroupInfo(String name,
1301            int flags) throws NameNotFoundException;
1302
1303    /**
1304     * Retrieve all of the known permission groups in the system.
1305     *
1306     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1307     * retrieve any meta-data associated with the permission group.
1308     *
1309     * @return Returns a list of {@link PermissionGroupInfo} containing
1310     * information about all of the known permission groups.
1311     */
1312    public abstract List<PermissionGroupInfo> getAllPermissionGroups(int flags);
1313
1314    /**
1315     * Retrieve all of the information we know about a particular
1316     * package/application.
1317     *
1318     * <p>Throws {@link NameNotFoundException} if an application with the given
1319     * package name can not be found on the system.
1320     *
1321     * @param packageName The full name (i.e. com.google.apps.contacts) of an
1322     *                    application.
1323     * @param flags Additional option flags. Use any combination of
1324     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1325     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1326     *
1327     * @return  {@link ApplicationInfo} Returns ApplicationInfo object containing
1328     *         information about the package.
1329     *         If flag GET_UNINSTALLED_PACKAGES is set and  if the package is not
1330     *         found in the list of installed applications,
1331     *         the application information is retrieved from the
1332     *         list of uninstalled applications(which includes
1333     *         installed applications as well as applications
1334     *         with data directory ie applications which had been
1335     *         deleted with DONT_DELTE_DATA flag set).
1336     *
1337     * @see #GET_META_DATA
1338     * @see #GET_SHARED_LIBRARY_FILES
1339     * @see #GET_UNINSTALLED_PACKAGES
1340     */
1341    public abstract ApplicationInfo getApplicationInfo(String packageName,
1342            int flags) throws NameNotFoundException;
1343
1344    /**
1345     * Retrieve all of the information we know about a particular activity
1346     * class.
1347     *
1348     * <p>Throws {@link NameNotFoundException} if an activity with the given
1349     * class name can not be found on the system.
1350     *
1351     * @param component The full component name (i.e.
1352     * com.google.apps.contacts/com.google.apps.contacts.ContactsList) of an Activity
1353     * class.
1354     * @param flags Additional option flags. Use any combination of
1355     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1356     * to modify the data (in ApplicationInfo) returned.
1357     *
1358     * @return {@link ActivityInfo} containing information about the activity.
1359     *
1360     * @see #GET_INTENT_FILTERS
1361     * @see #GET_META_DATA
1362     * @see #GET_SHARED_LIBRARY_FILES
1363     */
1364    public abstract ActivityInfo getActivityInfo(ComponentName component,
1365            int flags) throws NameNotFoundException;
1366
1367    /**
1368     * Retrieve all of the information we know about a particular receiver
1369     * class.
1370     *
1371     * <p>Throws {@link NameNotFoundException} if a receiver with the given
1372     * class name can not be found on the system.
1373     *
1374     * @param component The full component name (i.e.
1375     * com.google.apps.calendar/com.google.apps.calendar.CalendarAlarm) of a Receiver
1376     * class.
1377     * @param flags Additional option flags.  Use any combination of
1378     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1379     * to modify the data returned.
1380     *
1381     * @return {@link ActivityInfo} containing information about the receiver.
1382     *
1383     * @see #GET_INTENT_FILTERS
1384     * @see #GET_META_DATA
1385     * @see #GET_SHARED_LIBRARY_FILES
1386     */
1387    public abstract ActivityInfo getReceiverInfo(ComponentName component,
1388            int flags) throws NameNotFoundException;
1389
1390    /**
1391     * Retrieve all of the information we know about a particular service
1392     * class.
1393     *
1394     * <p>Throws {@link NameNotFoundException} if a service with the given
1395     * class name can not be found on the system.
1396     *
1397     * @param component The full component name (i.e.
1398     * com.google.apps.media/com.google.apps.media.BackgroundPlayback) of a Service
1399     * class.
1400     * @param flags Additional option flags.  Use any combination of
1401     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1402     * to modify the data returned.
1403     *
1404     * @return ServiceInfo containing information about the service.
1405     *
1406     * @see #GET_META_DATA
1407     * @see #GET_SHARED_LIBRARY_FILES
1408     */
1409    public abstract ServiceInfo getServiceInfo(ComponentName component,
1410            int flags) throws NameNotFoundException;
1411
1412    /**
1413     * Retrieve all of the information we know about a particular content
1414     * provider class.
1415     *
1416     * <p>Throws {@link NameNotFoundException} if a provider with the given
1417     * class name can not be found on the system.
1418     *
1419     * @param component The full component name (i.e.
1420     * com.google.providers.media/com.google.providers.media.MediaProvider) of a
1421     * ContentProvider class.
1422     * @param flags Additional option flags.  Use any combination of
1423     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1424     * to modify the data returned.
1425     *
1426     * @return ProviderInfo containing information about the service.
1427     *
1428     * @see #GET_META_DATA
1429     * @see #GET_SHARED_LIBRARY_FILES
1430     */
1431    public abstract ProviderInfo getProviderInfo(ComponentName component,
1432            int flags) throws NameNotFoundException;
1433
1434    /**
1435     * Return a List of all packages that are installed
1436     * on the device.
1437     *
1438     * @param flags Additional option flags. Use any combination of
1439     * {@link #GET_ACTIVITIES},
1440     * {@link #GET_GIDS},
1441     * {@link #GET_CONFIGURATIONS},
1442     * {@link #GET_INSTRUMENTATION},
1443     * {@link #GET_PERMISSIONS},
1444     * {@link #GET_PROVIDERS},
1445     * {@link #GET_RECEIVERS},
1446     * {@link #GET_SERVICES},
1447     * {@link #GET_SIGNATURES},
1448     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1449     *
1450     * @return A List of PackageInfo objects, one for each package that is
1451     *         installed on the device.  In the unlikely case of there being no
1452     *         installed packages, an empty list is returned.
1453     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1454     *         applications including those deleted with DONT_DELETE_DATA
1455     *         (partially installed apps with data directory) will be returned.
1456     *
1457     * @see #GET_ACTIVITIES
1458     * @see #GET_GIDS
1459     * @see #GET_CONFIGURATIONS
1460     * @see #GET_INSTRUMENTATION
1461     * @see #GET_PERMISSIONS
1462     * @see #GET_PROVIDERS
1463     * @see #GET_RECEIVERS
1464     * @see #GET_SERVICES
1465     * @see #GET_SIGNATURES
1466     * @see #GET_UNINSTALLED_PACKAGES
1467     *
1468     */
1469    public abstract List<PackageInfo> getInstalledPackages(int flags);
1470
1471    /**
1472     * Return a List of all packages that are installed on the device, for a specific user.
1473     * Requesting a list of installed packages for another user
1474     * will require the permission INTERACT_ACROSS_USERS_FULL.
1475     * @param flags Additional option flags. Use any combination of
1476     * {@link #GET_ACTIVITIES},
1477     * {@link #GET_GIDS},
1478     * {@link #GET_CONFIGURATIONS},
1479     * {@link #GET_INSTRUMENTATION},
1480     * {@link #GET_PERMISSIONS},
1481     * {@link #GET_PROVIDERS},
1482     * {@link #GET_RECEIVERS},
1483     * {@link #GET_SERVICES},
1484     * {@link #GET_SIGNATURES},
1485     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1486     * @param userId The user for whom the installed packages are to be listed
1487     *
1488     * @return A List of PackageInfo objects, one for each package that is
1489     *         installed on the device.  In the unlikely case of there being no
1490     *         installed packages, an empty list is returned.
1491     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1492     *         applications including those deleted with DONT_DELETE_DATA
1493     *         (partially installed apps with data directory) will be returned.
1494     *
1495     * @see #GET_ACTIVITIES
1496     * @see #GET_GIDS
1497     * @see #GET_CONFIGURATIONS
1498     * @see #GET_INSTRUMENTATION
1499     * @see #GET_PERMISSIONS
1500     * @see #GET_PROVIDERS
1501     * @see #GET_RECEIVERS
1502     * @see #GET_SERVICES
1503     * @see #GET_SIGNATURES
1504     * @see #GET_UNINSTALLED_PACKAGES
1505     *
1506     * @hide
1507     */
1508    public abstract List<PackageInfo> getInstalledPackages(int flags, int userId);
1509
1510    /**
1511     * Check whether a particular package has been granted a particular
1512     * permission.
1513     *
1514     * @param permName The name of the permission you are checking for,
1515     * @param pkgName The name of the package you are checking against.
1516     *
1517     * @return If the package has the permission, PERMISSION_GRANTED is
1518     * returned.  If it does not have the permission, PERMISSION_DENIED
1519     * is returned.
1520     *
1521     * @see #PERMISSION_GRANTED
1522     * @see #PERMISSION_DENIED
1523     */
1524    public abstract int checkPermission(String permName, String pkgName);
1525
1526    /**
1527     * Add a new dynamic permission to the system.  For this to work, your
1528     * package must have defined a permission tree through the
1529     * {@link android.R.styleable#AndroidManifestPermissionTree
1530     * &lt;permission-tree&gt;} tag in its manifest.  A package can only add
1531     * permissions to trees that were defined by either its own package or
1532     * another with the same user id; a permission is in a tree if it
1533     * matches the name of the permission tree + ".": for example,
1534     * "com.foo.bar" is a member of the permission tree "com.foo".
1535     *
1536     * <p>It is good to make your permission tree name descriptive, because you
1537     * are taking possession of that entire set of permission names.  Thus, it
1538     * must be under a domain you control, with a suffix that will not match
1539     * any normal permissions that may be declared in any applications that
1540     * are part of that domain.
1541     *
1542     * <p>New permissions must be added before
1543     * any .apks are installed that use those permissions.  Permissions you
1544     * add through this method are remembered across reboots of the device.
1545     * If the given permission already exists, the info you supply here
1546     * will be used to update it.
1547     *
1548     * @param info Description of the permission to be added.
1549     *
1550     * @return Returns true if a new permission was created, false if an
1551     * existing one was updated.
1552     *
1553     * @throws SecurityException if you are not allowed to add the
1554     * given permission name.
1555     *
1556     * @see #removePermission(String)
1557     */
1558    public abstract boolean addPermission(PermissionInfo info);
1559
1560    /**
1561     * Like {@link #addPermission(PermissionInfo)} but asynchronously
1562     * persists the package manager state after returning from the call,
1563     * allowing it to return quicker and batch a series of adds at the
1564     * expense of no guarantee the added permission will be retained if
1565     * the device is rebooted before it is written.
1566     */
1567    public abstract boolean addPermissionAsync(PermissionInfo info);
1568
1569    /**
1570     * Removes a permission that was previously added with
1571     * {@link #addPermission(PermissionInfo)}.  The same ownership rules apply
1572     * -- you are only allowed to remove permissions that you are allowed
1573     * to add.
1574     *
1575     * @param name The name of the permission to remove.
1576     *
1577     * @throws SecurityException if you are not allowed to remove the
1578     * given permission name.
1579     *
1580     * @see #addPermission(PermissionInfo)
1581     */
1582    public abstract void removePermission(String name);
1583
1584    /**
1585     * Grant a permission to an application which the application does not
1586     * already have.  The permission must have been requested by the application,
1587     * but as an optional permission.  If the application is not allowed to
1588     * hold the permission, a SecurityException is thrown.
1589     * @hide
1590     *
1591     * @param packageName The name of the package that the permission will be
1592     * granted to.
1593     * @param permissionName The name of the permission.
1594     */
1595    public abstract void grantPermission(String packageName, String permissionName);
1596
1597    /**
1598     * Revoke a permission that was previously granted by {@link #grantPermission}.
1599     * @hide
1600     *
1601     * @param packageName The name of the package that the permission will be
1602     * granted to.
1603     * @param permissionName The name of the permission.
1604     */
1605    public abstract void revokePermission(String packageName, String permissionName);
1606
1607    /**
1608     * Compare the signatures of two packages to determine if the same
1609     * signature appears in both of them.  If they do contain the same
1610     * signature, then they are allowed special privileges when working
1611     * with each other: they can share the same user-id, run instrumentation
1612     * against each other, etc.
1613     *
1614     * @param pkg1 First package name whose signature will be compared.
1615     * @param pkg2 Second package name whose signature will be compared.
1616     *
1617     * @return Returns an integer indicating whether all signatures on the
1618     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
1619     * all signatures match or < 0 if there is not a match ({@link
1620     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
1621     *
1622     * @see #checkSignatures(int, int)
1623     * @see #SIGNATURE_MATCH
1624     * @see #SIGNATURE_NO_MATCH
1625     * @see #SIGNATURE_UNKNOWN_PACKAGE
1626     */
1627    public abstract int checkSignatures(String pkg1, String pkg2);
1628
1629    /**
1630     * Like {@link #checkSignatures(String, String)}, but takes UIDs of
1631     * the two packages to be checked.  This can be useful, for example,
1632     * when doing the check in an IPC, where the UID is the only identity
1633     * available.  It is functionally identical to determining the package
1634     * associated with the UIDs and checking their signatures.
1635     *
1636     * @param uid1 First UID whose signature will be compared.
1637     * @param uid2 Second UID whose signature will be compared.
1638     *
1639     * @return Returns an integer indicating whether all signatures on the
1640     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
1641     * all signatures match or < 0 if there is not a match ({@link
1642     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
1643     *
1644     * @see #checkSignatures(String, String)
1645     * @see #SIGNATURE_MATCH
1646     * @see #SIGNATURE_NO_MATCH
1647     * @see #SIGNATURE_UNKNOWN_PACKAGE
1648     */
1649    public abstract int checkSignatures(int uid1, int uid2);
1650
1651    /**
1652     * Retrieve the names of all packages that are associated with a particular
1653     * user id.  In most cases, this will be a single package name, the package
1654     * that has been assigned that user id.  Where there are multiple packages
1655     * sharing the same user id through the "sharedUserId" mechanism, all
1656     * packages with that id will be returned.
1657     *
1658     * @param uid The user id for which you would like to retrieve the
1659     * associated packages.
1660     *
1661     * @return Returns an array of one or more packages assigned to the user
1662     * id, or null if there are no known packages with the given id.
1663     */
1664    public abstract String[] getPackagesForUid(int uid);
1665
1666    /**
1667     * Retrieve the official name associated with a user id.  This name is
1668     * guaranteed to never change, though it is possibly for the underlying
1669     * user id to be changed.  That is, if you are storing information about
1670     * user ids in persistent storage, you should use the string returned
1671     * by this function instead of the raw user-id.
1672     *
1673     * @param uid The user id for which you would like to retrieve a name.
1674     * @return Returns a unique name for the given user id, or null if the
1675     * user id is not currently assigned.
1676     */
1677    public abstract String getNameForUid(int uid);
1678
1679    /**
1680     * Return the user id associated with a shared user name. Multiple
1681     * applications can specify a shared user name in their manifest and thus
1682     * end up using a common uid. This might be used for new applications
1683     * that use an existing shared user name and need to know the uid of the
1684     * shared user.
1685     *
1686     * @param sharedUserName The shared user name whose uid is to be retrieved.
1687     * @return Returns the uid associated with the shared user, or  NameNotFoundException
1688     * if the shared user name is not being used by any installed packages
1689     * @hide
1690     */
1691    public abstract int getUidForSharedUser(String sharedUserName)
1692            throws NameNotFoundException;
1693
1694    /**
1695     * Return a List of all application packages that are installed on the
1696     * device. If flag GET_UNINSTALLED_PACKAGES has been set, a list of all
1697     * applications including those deleted with DONT_DELETE_DATA(partially
1698     * installed apps with data directory) will be returned.
1699     *
1700     * @param flags Additional option flags. Use any combination of
1701     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1702     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1703     *
1704     * @return A List of ApplicationInfo objects, one for each application that
1705     *         is installed on the device.  In the unlikely case of there being
1706     *         no installed applications, an empty list is returned.
1707     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1708     *         applications including those deleted with DONT_DELETE_DATA
1709     *         (partially installed apps with data directory) will be returned.
1710     *
1711     * @see #GET_META_DATA
1712     * @see #GET_SHARED_LIBRARY_FILES
1713     * @see #GET_UNINSTALLED_PACKAGES
1714     */
1715    public abstract List<ApplicationInfo> getInstalledApplications(int flags);
1716
1717    /**
1718     * Get a list of shared libraries that are available on the
1719     * system.
1720     *
1721     * @return An array of shared library names that are
1722     * available on the system, or null if none are installed.
1723     *
1724     */
1725    public abstract String[] getSystemSharedLibraryNames();
1726
1727    /**
1728     * Get a list of features that are available on the
1729     * system.
1730     *
1731     * @return An array of FeatureInfo classes describing the features
1732     * that are available on the system, or null if there are none(!!).
1733     */
1734    public abstract FeatureInfo[] getSystemAvailableFeatures();
1735
1736    /**
1737     * Check whether the given feature name is one of the available
1738     * features as returned by {@link #getSystemAvailableFeatures()}.
1739     *
1740     * @return Returns true if the devices supports the feature, else
1741     * false.
1742     */
1743    public abstract boolean hasSystemFeature(String name);
1744
1745    /**
1746     * Determine the best action to perform for a given Intent.  This is how
1747     * {@link Intent#resolveActivity} finds an activity if a class has not
1748     * been explicitly specified.
1749     *
1750     * <p><em>Note:</em> if using an implicit Intent (without an explicit ComponentName
1751     * specified), be sure to consider whether to set the {@link #MATCH_DEFAULT_ONLY}
1752     * only flag.  You need to do so to resolve the activity in the same way
1753     * that {@link android.content.Context#startActivity(Intent)} and
1754     * {@link android.content.Intent#resolveActivity(PackageManager)
1755     * Intent.resolveActivity(PackageManager)} do.</p>
1756     *
1757     * @param intent An intent containing all of the desired specification
1758     *               (action, data, type, category, and/or component).
1759     * @param flags Additional option flags.  The most important is
1760     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1761     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1762     *
1763     * @return Returns a ResolveInfo containing the final activity intent that
1764     *         was determined to be the best action.  Returns null if no
1765     *         matching activity was found. If multiple matching activities are
1766     *         found and there is no default set, returns a ResolveInfo
1767     *         containing something else, such as the activity resolver.
1768     *
1769     * @see #MATCH_DEFAULT_ONLY
1770     * @see #GET_INTENT_FILTERS
1771     * @see #GET_RESOLVED_FILTER
1772     */
1773    public abstract ResolveInfo resolveActivity(Intent intent, int flags);
1774
1775    /**
1776     * Retrieve all activities that can be performed for the given intent.
1777     *
1778     * @param intent The desired intent as per resolveActivity().
1779     * @param flags Additional option flags.  The most important is
1780     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1781     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1782     *
1783     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1784     *         Activity. These are ordered from best to worst match -- that
1785     *         is, the first item in the list is what is returned by
1786     *         {@link #resolveActivity}.  If there are no matching activities, an empty
1787     *         list is returned.
1788     *
1789     * @see #MATCH_DEFAULT_ONLY
1790     * @see #GET_INTENT_FILTERS
1791     * @see #GET_RESOLVED_FILTER
1792     */
1793    public abstract List<ResolveInfo> queryIntentActivities(Intent intent,
1794            int flags);
1795
1796    /**
1797     * Retrieve all activities that can be performed for the given intent, for a specific user.
1798     *
1799     * @param intent The desired intent as per resolveActivity().
1800     * @param flags Additional option flags.  The most important is
1801     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1802     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1803     *
1804     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1805     *         Activity. These are ordered from best to worst match -- that
1806     *         is, the first item in the list is what is returned by
1807     *         {@link #resolveActivity}.  If there are no matching activities, an empty
1808     *         list is returned.
1809     *
1810     * @see #MATCH_DEFAULT_ONLY
1811     * @see #GET_INTENT_FILTERS
1812     * @see #GET_RESOLVED_FILTER
1813     * @hide
1814     */
1815    public abstract List<ResolveInfo> queryIntentActivitiesForUser(Intent intent,
1816            int flags, int userId);
1817
1818
1819    /**
1820     * Retrieve a set of activities that should be presented to the user as
1821     * similar options.  This is like {@link #queryIntentActivities}, except it
1822     * also allows you to supply a list of more explicit Intents that you would
1823     * like to resolve to particular options, and takes care of returning the
1824     * final ResolveInfo list in a reasonable order, with no duplicates, based
1825     * on those inputs.
1826     *
1827     * @param caller The class name of the activity that is making the
1828     *               request.  This activity will never appear in the output
1829     *               list.  Can be null.
1830     * @param specifics An array of Intents that should be resolved to the
1831     *                  first specific results.  Can be null.
1832     * @param intent The desired intent as per resolveActivity().
1833     * @param flags Additional option flags.  The most important is
1834     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1835     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1836     *
1837     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1838     *         Activity. These are ordered first by all of the intents resolved
1839     *         in <var>specifics</var> and then any additional activities that
1840     *         can handle <var>intent</var> but did not get included by one of
1841     *         the <var>specifics</var> intents.  If there are no matching
1842     *         activities, an empty list is returned.
1843     *
1844     * @see #MATCH_DEFAULT_ONLY
1845     * @see #GET_INTENT_FILTERS
1846     * @see #GET_RESOLVED_FILTER
1847     */
1848    public abstract List<ResolveInfo> queryIntentActivityOptions(
1849            ComponentName caller, Intent[] specifics, Intent intent, int flags);
1850
1851    /**
1852     * Retrieve all receivers that can handle a broadcast of the given intent.
1853     *
1854     * @param intent The desired intent as per resolveActivity().
1855     * @param flags Additional option flags.
1856     *
1857     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1858     *         Receiver. These are ordered from first to last in priority.  If
1859     *         there are no matching receivers, an empty list is returned.
1860     *
1861     * @see #MATCH_DEFAULT_ONLY
1862     * @see #GET_INTENT_FILTERS
1863     * @see #GET_RESOLVED_FILTER
1864     */
1865    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
1866            int flags);
1867
1868    /**
1869     * Retrieve all receivers that can handle a broadcast of the given intent, for a specific
1870     * user.
1871     *
1872     * @param intent The desired intent as per resolveActivity().
1873     * @param flags Additional option flags.
1874     * @param userId The userId of the user being queried.
1875     *
1876     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1877     *         Receiver. These are ordered from first to last in priority.  If
1878     *         there are no matching receivers, an empty list is returned.
1879     *
1880     * @see #MATCH_DEFAULT_ONLY
1881     * @see #GET_INTENT_FILTERS
1882     * @see #GET_RESOLVED_FILTER
1883     * @hide
1884     */
1885    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
1886            int flags, int userId);
1887
1888    /**
1889     * Determine the best service to handle for a given Intent.
1890     *
1891     * @param intent An intent containing all of the desired specification
1892     *               (action, data, type, category, and/or component).
1893     * @param flags Additional option flags.
1894     *
1895     * @return Returns a ResolveInfo containing the final service intent that
1896     *         was determined to be the best action.  Returns null if no
1897     *         matching service was found.
1898     *
1899     * @see #GET_INTENT_FILTERS
1900     * @see #GET_RESOLVED_FILTER
1901     */
1902    public abstract ResolveInfo resolveService(Intent intent, int flags);
1903
1904    /**
1905     * Retrieve all services that can match the given intent.
1906     *
1907     * @param intent The desired intent as per resolveService().
1908     * @param flags Additional option flags.
1909     *
1910     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
1911     *         ServiceInfo. These are ordered from best to worst match -- that
1912     *         is, the first item in the list is what is returned by
1913     *         resolveService().  If there are no matching services, an empty
1914     *         list is returned.
1915     *
1916     * @see #GET_INTENT_FILTERS
1917     * @see #GET_RESOLVED_FILTER
1918     */
1919    public abstract List<ResolveInfo> queryIntentServices(Intent intent,
1920            int flags);
1921
1922    /**
1923     * Find a single content provider by its base path name.
1924     *
1925     * @param name The name of the provider to find.
1926     * @param flags Additional option flags.  Currently should always be 0.
1927     *
1928     * @return ContentProviderInfo Information about the provider, if found,
1929     *         else null.
1930     */
1931    public abstract ProviderInfo resolveContentProvider(String name,
1932            int flags);
1933
1934    /**
1935     * Retrieve content provider information.
1936     *
1937     * <p><em>Note: unlike most other methods, an empty result set is indicated
1938     * by a null return instead of an empty list.</em>
1939     *
1940     * @param processName If non-null, limits the returned providers to only
1941     *                    those that are hosted by the given process.  If null,
1942     *                    all content providers are returned.
1943     * @param uid If <var>processName</var> is non-null, this is the required
1944     *        uid owning the requested content providers.
1945     * @param flags Additional option flags.  Currently should always be 0.
1946     *
1947     * @return A List&lt;ContentProviderInfo&gt; containing one entry for each
1948     *         content provider either patching <var>processName</var> or, if
1949     *         <var>processName</var> is null, all known content providers.
1950     *         <em>If there are no matching providers, null is returned.</em>
1951     */
1952    public abstract List<ProviderInfo> queryContentProviders(
1953            String processName, int uid, int flags);
1954
1955    /**
1956     * Retrieve all of the information we know about a particular
1957     * instrumentation class.
1958     *
1959     * <p>Throws {@link NameNotFoundException} if instrumentation with the
1960     * given class name can not be found on the system.
1961     *
1962     * @param className The full name (i.e.
1963     *                  com.google.apps.contacts.InstrumentList) of an
1964     *                  Instrumentation class.
1965     * @param flags Additional option flags.  Currently should always be 0.
1966     *
1967     * @return InstrumentationInfo containing information about the
1968     *         instrumentation.
1969     */
1970    public abstract InstrumentationInfo getInstrumentationInfo(
1971            ComponentName className, int flags) throws NameNotFoundException;
1972
1973    /**
1974     * Retrieve information about available instrumentation code.  May be used
1975     * to retrieve either all instrumentation code, or only the code targeting
1976     * a particular package.
1977     *
1978     * @param targetPackage If null, all instrumentation is returned; only the
1979     *                      instrumentation targeting this package name is
1980     *                      returned.
1981     * @param flags Additional option flags.  Currently should always be 0.
1982     *
1983     * @return A List&lt;InstrumentationInfo&gt; containing one entry for each
1984     *         matching available Instrumentation.  Returns an empty list if
1985     *         there is no instrumentation available for the given package.
1986     */
1987    public abstract List<InstrumentationInfo> queryInstrumentation(
1988            String targetPackage, int flags);
1989
1990    /**
1991     * Retrieve an image from a package.  This is a low-level API used by
1992     * the various package manager info structures (such as
1993     * {@link ComponentInfo} to implement retrieval of their associated
1994     * icon.
1995     *
1996     * @param packageName The name of the package that this icon is coming from.
1997     * Can not be null.
1998     * @param resid The resource identifier of the desired image.  Can not be 0.
1999     * @param appInfo Overall information about <var>packageName</var>.  This
2000     * may be null, in which case the application information will be retrieved
2001     * for you if needed; if you already have this information around, it can
2002     * be much more efficient to supply it here.
2003     *
2004     * @return Returns a Drawable holding the requested image.  Returns null if
2005     * an image could not be found for any reason.
2006     */
2007    public abstract Drawable getDrawable(String packageName, int resid,
2008            ApplicationInfo appInfo);
2009
2010    /**
2011     * Retrieve the icon associated with an activity.  Given the full name of
2012     * an activity, retrieves the information about it and calls
2013     * {@link ComponentInfo#loadIcon ComponentInfo.loadIcon()} to return its icon.
2014     * If the activity can not be found, NameNotFoundException is thrown.
2015     *
2016     * @param activityName Name of the activity whose icon is to be retrieved.
2017     *
2018     * @return Returns the image of the icon, or the default activity icon if
2019     * it could not be found.  Does not return null.
2020     * @throws NameNotFoundException Thrown if the resources for the given
2021     * activity could not be loaded.
2022     *
2023     * @see #getActivityIcon(Intent)
2024     */
2025    public abstract Drawable getActivityIcon(ComponentName activityName)
2026            throws NameNotFoundException;
2027
2028    /**
2029     * Retrieve the icon associated with an Intent.  If intent.getClassName() is
2030     * set, this simply returns the result of
2031     * getActivityIcon(intent.getClassName()).  Otherwise it resolves the intent's
2032     * component and returns the icon associated with the resolved component.
2033     * If intent.getClassName() can not be found or the Intent can not be resolved
2034     * to a component, NameNotFoundException is thrown.
2035     *
2036     * @param intent The intent for which you would like to retrieve an icon.
2037     *
2038     * @return Returns the image of the icon, or the default activity icon if
2039     * it could not be found.  Does not return null.
2040     * @throws NameNotFoundException Thrown if the resources for application
2041     * matching the given intent could not be loaded.
2042     *
2043     * @see #getActivityIcon(ComponentName)
2044     */
2045    public abstract Drawable getActivityIcon(Intent intent)
2046            throws NameNotFoundException;
2047
2048    /**
2049     * Return the generic icon for an activity that is used when no specific
2050     * icon is defined.
2051     *
2052     * @return Drawable Image of the icon.
2053     */
2054    public abstract Drawable getDefaultActivityIcon();
2055
2056    /**
2057     * Retrieve the icon associated with an application.  If it has not defined
2058     * an icon, the default app icon is returned.  Does not return null.
2059     *
2060     * @param info Information about application being queried.
2061     *
2062     * @return Returns the image of the icon, or the default application icon
2063     * if it could not be found.
2064     *
2065     * @see #getApplicationIcon(String)
2066     */
2067    public abstract Drawable getApplicationIcon(ApplicationInfo info);
2068
2069    /**
2070     * Retrieve the icon associated with an application.  Given the name of the
2071     * application's package, retrieves the information about it and calls
2072     * getApplicationIcon() to return its icon. If the application can not be
2073     * found, NameNotFoundException is thrown.
2074     *
2075     * @param packageName Name of the package whose application icon is to be
2076     *                    retrieved.
2077     *
2078     * @return Returns the image of the icon, or the default application icon
2079     * if it could not be found.  Does not return null.
2080     * @throws NameNotFoundException Thrown if the resources for the given
2081     * application could not be loaded.
2082     *
2083     * @see #getApplicationIcon(ApplicationInfo)
2084     */
2085    public abstract Drawable getApplicationIcon(String packageName)
2086            throws NameNotFoundException;
2087
2088    /**
2089     * Retrieve the logo associated with an activity.  Given the full name of
2090     * an activity, retrieves the information about it and calls
2091     * {@link ComponentInfo#loadLogo ComponentInfo.loadLogo()} to return its logo.
2092     * If the activity can not be found, NameNotFoundException is thrown.
2093     *
2094     * @param activityName Name of the activity whose logo is to be retrieved.
2095     *
2096     * @return Returns the image of the logo or null if the activity has no
2097     * logo specified.
2098     *
2099     * @throws NameNotFoundException Thrown if the resources for the given
2100     * activity could not be loaded.
2101     *
2102     * @see #getActivityLogo(Intent)
2103     */
2104    public abstract Drawable getActivityLogo(ComponentName activityName)
2105            throws NameNotFoundException;
2106
2107    /**
2108     * Retrieve the logo associated with an Intent.  If intent.getClassName() is
2109     * set, this simply returns the result of
2110     * getActivityLogo(intent.getClassName()).  Otherwise it resolves the intent's
2111     * component and returns the logo associated with the resolved component.
2112     * If intent.getClassName() can not be found or the Intent can not be resolved
2113     * to a component, NameNotFoundException is thrown.
2114     *
2115     * @param intent The intent for which you would like to retrieve a logo.
2116     *
2117     * @return Returns the image of the logo, or null if the activity has no
2118     * logo specified.
2119     *
2120     * @throws NameNotFoundException Thrown if the resources for application
2121     * matching the given intent could not be loaded.
2122     *
2123     * @see #getActivityLogo(ComponentName)
2124     */
2125    public abstract Drawable getActivityLogo(Intent intent)
2126            throws NameNotFoundException;
2127
2128    /**
2129     * Retrieve the logo associated with an application.  If it has not specified
2130     * a logo, this method returns null.
2131     *
2132     * @param info Information about application being queried.
2133     *
2134     * @return Returns the image of the logo, or null if no logo is specified
2135     * by the application.
2136     *
2137     * @see #getApplicationLogo(String)
2138     */
2139    public abstract Drawable getApplicationLogo(ApplicationInfo info);
2140
2141    /**
2142     * Retrieve the logo associated with an application.  Given the name of the
2143     * application's package, retrieves the information about it and calls
2144     * getApplicationLogo() to return its logo. If the application can not be
2145     * found, NameNotFoundException is thrown.
2146     *
2147     * @param packageName Name of the package whose application logo is to be
2148     *                    retrieved.
2149     *
2150     * @return Returns the image of the logo, or null if no application logo
2151     * has been specified.
2152     *
2153     * @throws NameNotFoundException Thrown if the resources for the given
2154     * application could not be loaded.
2155     *
2156     * @see #getApplicationLogo(ApplicationInfo)
2157     */
2158    public abstract Drawable getApplicationLogo(String packageName)
2159            throws NameNotFoundException;
2160
2161    /**
2162     * Retrieve text from a package.  This is a low-level API used by
2163     * the various package manager info structures (such as
2164     * {@link ComponentInfo} to implement retrieval of their associated
2165     * labels and other text.
2166     *
2167     * @param packageName The name of the package that this text is coming from.
2168     * Can not be null.
2169     * @param resid The resource identifier of the desired text.  Can not be 0.
2170     * @param appInfo Overall information about <var>packageName</var>.  This
2171     * may be null, in which case the application information will be retrieved
2172     * for you if needed; if you already have this information around, it can
2173     * be much more efficient to supply it here.
2174     *
2175     * @return Returns a CharSequence holding the requested text.  Returns null
2176     * if the text could not be found for any reason.
2177     */
2178    public abstract CharSequence getText(String packageName, int resid,
2179            ApplicationInfo appInfo);
2180
2181    /**
2182     * Retrieve an XML file from a package.  This is a low-level API used to
2183     * retrieve XML meta data.
2184     *
2185     * @param packageName The name of the package that this xml is coming from.
2186     * Can not be null.
2187     * @param resid The resource identifier of the desired xml.  Can not be 0.
2188     * @param appInfo Overall information about <var>packageName</var>.  This
2189     * may be null, in which case the application information will be retrieved
2190     * for you if needed; if you already have this information around, it can
2191     * be much more efficient to supply it here.
2192     *
2193     * @return Returns an XmlPullParser allowing you to parse out the XML
2194     * data.  Returns null if the xml resource could not be found for any
2195     * reason.
2196     */
2197    public abstract XmlResourceParser getXml(String packageName, int resid,
2198            ApplicationInfo appInfo);
2199
2200    /**
2201     * Return the label to use for this application.
2202     *
2203     * @return Returns the label associated with this application, or null if
2204     * it could not be found for any reason.
2205     * @param info The application to get the label of
2206     */
2207    public abstract CharSequence getApplicationLabel(ApplicationInfo info);
2208
2209    /**
2210     * Retrieve the resources associated with an activity.  Given the full
2211     * name of an activity, retrieves the information about it and calls
2212     * getResources() to return its application's resources.  If the activity
2213     * can not be found, NameNotFoundException is thrown.
2214     *
2215     * @param activityName Name of the activity whose resources are to be
2216     *                     retrieved.
2217     *
2218     * @return Returns the application's Resources.
2219     * @throws NameNotFoundException Thrown if the resources for the given
2220     * application could not be loaded.
2221     *
2222     * @see #getResourcesForApplication(ApplicationInfo)
2223     */
2224    public abstract Resources getResourcesForActivity(ComponentName activityName)
2225            throws NameNotFoundException;
2226
2227    /**
2228     * Retrieve the resources for an application.  Throws NameNotFoundException
2229     * if the package is no longer installed.
2230     *
2231     * @param app Information about the desired application.
2232     *
2233     * @return Returns the application's Resources.
2234     * @throws NameNotFoundException Thrown if the resources for the given
2235     * application could not be loaded (most likely because it was uninstalled).
2236     */
2237    public abstract Resources getResourcesForApplication(ApplicationInfo app)
2238            throws NameNotFoundException;
2239
2240    /**
2241     * Retrieve the resources associated with an application.  Given the full
2242     * package name of an application, retrieves the information about it and
2243     * calls getResources() to return its application's resources.  If the
2244     * appPackageName can not be found, NameNotFoundException is thrown.
2245     *
2246     * @param appPackageName Package name of the application whose resources
2247     *                       are to be retrieved.
2248     *
2249     * @return Returns the application's Resources.
2250     * @throws NameNotFoundException Thrown if the resources for the given
2251     * application could not be loaded.
2252     *
2253     * @see #getResourcesForApplication(ApplicationInfo)
2254     */
2255    public abstract Resources getResourcesForApplication(String appPackageName)
2256            throws NameNotFoundException;
2257
2258    /**
2259     * Retrieve overall information about an application package defined
2260     * in a package archive file
2261     *
2262     * @param archiveFilePath The path to the archive file
2263     * @param flags Additional option flags. Use any combination of
2264     * {@link #GET_ACTIVITIES},
2265     * {@link #GET_GIDS},
2266     * {@link #GET_CONFIGURATIONS},
2267     * {@link #GET_INSTRUMENTATION},
2268     * {@link #GET_PERMISSIONS},
2269     * {@link #GET_PROVIDERS},
2270     * {@link #GET_RECEIVERS},
2271     * {@link #GET_SERVICES},
2272     * {@link #GET_SIGNATURES}, to modify the data returned.
2273     *
2274     * @return Returns the information about the package. Returns
2275     * null if the package could not be successfully parsed.
2276     *
2277     * @see #GET_ACTIVITIES
2278     * @see #GET_GIDS
2279     * @see #GET_CONFIGURATIONS
2280     * @see #GET_INSTRUMENTATION
2281     * @see #GET_PERMISSIONS
2282     * @see #GET_PROVIDERS
2283     * @see #GET_RECEIVERS
2284     * @see #GET_SERVICES
2285     * @see #GET_SIGNATURES
2286     *
2287     */
2288    public PackageInfo getPackageArchiveInfo(String archiveFilePath, int flags) {
2289        PackageParser packageParser = new PackageParser(archiveFilePath);
2290        DisplayMetrics metrics = new DisplayMetrics();
2291        metrics.setToDefaults();
2292        final File sourceFile = new File(archiveFilePath);
2293        PackageParser.Package pkg = packageParser.parsePackage(
2294                sourceFile, archiveFilePath, metrics, 0);
2295        if (pkg == null) {
2296            return null;
2297        }
2298        if ((flags & GET_SIGNATURES) != 0) {
2299            packageParser.collectCertificates(pkg, 0);
2300        }
2301        PackageUserState state = new PackageUserState();
2302        return PackageParser.generatePackageInfo(pkg, null, flags, 0, 0, null, state);
2303    }
2304
2305    /**
2306     * @hide
2307     *
2308     * Install a package. Since this may take a little while, the result will
2309     * be posted back to the given observer.  An installation will fail if the calling context
2310     * lacks the {@link android.Manifest.permission#INSTALL_PACKAGES} permission, if the
2311     * package named in the package file's manifest is already installed, or if there's no space
2312     * available on the device.
2313     *
2314     * @param packageURI The location of the package file to install.  This can be a 'file:' or a
2315     * 'content:' URI.
2316     * @param observer An observer callback to get notified when the package installation is
2317     * complete. {@link IPackageInstallObserver#packageInstalled(String, int)} will be
2318     * called when that happens.  observer may be null to indicate that no callback is desired.
2319     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2320     * {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
2321     * @param installerPackageName Optional package name of the application that is performing the
2322     * installation. This identifies which market the package came from.
2323     */
2324    public abstract void installPackage(
2325            Uri packageURI, IPackageInstallObserver observer, int flags,
2326            String installerPackageName);
2327
2328    /**
2329     * Similar to
2330     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2331     * with an extra verification file provided.
2332     *
2333     * @param packageURI The location of the package file to install. This can
2334     *            be a 'file:' or a 'content:' URI.
2335     * @param observer An observer callback to get notified when the package
2336     *            installation is complete.
2337     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2338     *            will be called when that happens. observer may be null to
2339     *            indicate that no callback is desired.
2340     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2341     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}
2342     *            .
2343     * @param installerPackageName Optional package name of the application that
2344     *            is performing the installation. This identifies which market
2345     *            the package came from.
2346     * @param verificationURI The location of the supplementary verification
2347     *            file. This can be a 'file:' or a 'content:' URI. May be
2348     *            {@code null}.
2349     * @param manifestDigest an object that holds the digest of the package
2350     *            which can be used to verify ownership. May be {@code null}.
2351     * @param encryptionParams if the package to be installed is encrypted,
2352     *            these parameters describing the encryption and authentication
2353     *            used. May be {@code null}.
2354     * @hide
2355     */
2356    public abstract void installPackageWithVerification(Uri packageURI,
2357            IPackageInstallObserver observer, int flags, String installerPackageName,
2358            Uri verificationURI, ManifestDigest manifestDigest,
2359            ContainerEncryptionParams encryptionParams);
2360
2361    /**
2362     * Similar to
2363     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2364     * with an extra verification information provided.
2365     *
2366     * @param packageURI The location of the package file to install. This can
2367     *            be a 'file:' or a 'content:' URI.
2368     * @param observer An observer callback to get notified when the package
2369     *            installation is complete.
2370     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2371     *            will be called when that happens. observer may be null to
2372     *            indicate that no callback is desired.
2373     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2374     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}
2375     *            .
2376     * @param installerPackageName Optional package name of the application that
2377     *            is performing the installation. This identifies which market
2378     *            the package came from.
2379     * @param verificationParams an object that holds signal information to
2380     *            assist verification. May be {@code null}.
2381     * @param encryptionParams if the package to be installed is encrypted,
2382     *            these parameters describing the encryption and authentication
2383     *            used. May be {@code null}.
2384     *
2385     * @hide
2386     */
2387    public abstract void installPackageWithVerificationAndEncryption(Uri packageURI,
2388            IPackageInstallObserver observer, int flags, String installerPackageName,
2389            VerificationParams verificationParams,
2390            ContainerEncryptionParams encryptionParams);
2391
2392    /**
2393     * If there is already an application with the given package name installed
2394     * on the system for other users, also install it for the calling user.
2395     * @hide
2396     */
2397    public abstract int installExistingPackage(String packageName)
2398            throws NameNotFoundException;
2399
2400    /**
2401     * Allows a package listening to the
2402     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
2403     * broadcast} to respond to the package manager. The response must include
2404     * the {@code verificationCode} which is one of
2405     * {@link PackageManager#VERIFICATION_ALLOW} or
2406     * {@link PackageManager#VERIFICATION_REJECT}.
2407     *
2408     * @param id pending package identifier as passed via the
2409     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra
2410     * @param verificationCode either {@link PackageManager#VERIFICATION_ALLOW}
2411     *            or {@link PackageManager#VERIFICATION_REJECT}.
2412     * @throws SecurityException if the caller does not have the
2413     *            {@link android.Manifest.permission#PACKAGE_VERIFICATION_AGENT}
2414     *            permission.
2415     */
2416    public abstract void verifyPendingInstall(int id, int verificationCode);
2417
2418    /**
2419     * Allows a package listening to the
2420     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
2421     * broadcast} to extend the default timeout for a response and declare what
2422     * action to perform after the timeout occurs. The response must include
2423     * the {@code verificationCodeAtTimeout} which is one of
2424     * {@link PackageManager#VERIFICATION_ALLOW} or
2425     * {@link PackageManager#VERIFICATION_REJECT}.
2426     *
2427     * This method may only be called once per package id. Additional calls
2428     * will have no effect.
2429     *
2430     * @param id pending package identifier as passed via the
2431     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra
2432     * @param verificationCodeAtTimeout either
2433     *            {@link PackageManager#VERIFICATION_ALLOW} or
2434     *            {@link PackageManager#VERIFICATION_REJECT}. If
2435     *            {@code verificationCodeAtTimeout} is neither
2436     *            {@link PackageManager#VERIFICATION_ALLOW} or
2437     *            {@link PackageManager#VERIFICATION_REJECT}, then
2438     *            {@code verificationCodeAtTimeout} will default to
2439     *            {@link PackageManager#VERIFICATION_REJECT}.
2440     * @param millisecondsToDelay the amount of time requested for the timeout.
2441     *            Must be positive and less than
2442     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}. If
2443     *            {@code millisecondsToDelay} is out of bounds,
2444     *            {@code millisecondsToDelay} will be set to the closest in
2445     *            bounds value; namely, 0 or
2446     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}.
2447     * @throws SecurityException if the caller does not have the
2448     *            {@link android.Manifest.permission#PACKAGE_VERIFICATION_AGENT}
2449     *            permission.
2450     */
2451    public abstract void extendVerificationTimeout(int id,
2452            int verificationCodeAtTimeout, long millisecondsToDelay);
2453
2454    /**
2455     * Change the installer associated with a given package.  There are limitations
2456     * on how the installer package can be changed; in particular:
2457     * <ul>
2458     * <li> A SecurityException will be thrown if <var>installerPackageName</var>
2459     * is not signed with the same certificate as the calling application.
2460     * <li> A SecurityException will be thrown if <var>targetPackage</var> already
2461     * has an installer package, and that installer package is not signed with
2462     * the same certificate as the calling application.
2463     * </ul>
2464     *
2465     * @param targetPackage The installed package whose installer will be changed.
2466     * @param installerPackageName The package name of the new installer.  May be
2467     * null to clear the association.
2468     */
2469    public abstract void setInstallerPackageName(String targetPackage,
2470            String installerPackageName);
2471
2472    /**
2473     * Attempts to delete a package.  Since this may take a little while, the result will
2474     * be posted back to the given observer.  A deletion will fail if the calling context
2475     * lacks the {@link android.Manifest.permission#DELETE_PACKAGES} permission, if the
2476     * named package cannot be found, or if the named package is a "system package".
2477     * (TODO: include pointer to documentation on "system packages")
2478     *
2479     * @param packageName The name of the package to delete
2480     * @param observer An observer callback to get notified when the package deletion is
2481     * complete. {@link android.content.pm.IPackageDeleteObserver#packageDeleted(boolean)} will be
2482     * called when that happens.  observer may be null to indicate that no callback is desired.
2483     * @param flags - possible values: {@link #DELETE_KEEP_DATA},
2484     * {@link #DELETE_ALL_USERS}.
2485     *
2486     * @hide
2487     */
2488    public abstract void deletePackage(
2489            String packageName, IPackageDeleteObserver observer, int flags);
2490
2491    /**
2492     * Retrieve the package name of the application that installed a package. This identifies
2493     * which market the package came from.
2494     *
2495     * @param packageName The name of the package to query
2496     */
2497    public abstract String getInstallerPackageName(String packageName);
2498
2499    /**
2500     * Attempts to clear the user data directory of an application.
2501     * Since this may take a little while, the result will
2502     * be posted back to the given observer.  A deletion will fail if the
2503     * named package cannot be found, or if the named package is a "system package".
2504     *
2505     * @param packageName The name of the package
2506     * @param observer An observer callback to get notified when the operation is finished
2507     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
2508     * will be called when that happens.  observer may be null to indicate that
2509     * no callback is desired.
2510     *
2511     * @hide
2512     */
2513    public abstract void clearApplicationUserData(String packageName,
2514            IPackageDataObserver observer);
2515    /**
2516     * Attempts to delete the cache files associated with an application.
2517     * Since this may take a little while, the result will
2518     * be posted back to the given observer.  A deletion will fail if the calling context
2519     * lacks the {@link android.Manifest.permission#DELETE_CACHE_FILES} permission, if the
2520     * named package cannot be found, or if the named package is a "system package".
2521     *
2522     * @param packageName The name of the package to delete
2523     * @param observer An observer callback to get notified when the cache file deletion
2524     * is complete.
2525     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
2526     * will be called when that happens.  observer may be null to indicate that
2527     * no callback is desired.
2528     *
2529     * @hide
2530     */
2531    public abstract void deleteApplicationCacheFiles(String packageName,
2532            IPackageDataObserver observer);
2533
2534    /**
2535     * Free storage by deleting LRU sorted list of cache files across
2536     * all applications. If the currently available free storage
2537     * on the device is greater than or equal to the requested
2538     * free storage, no cache files are cleared. If the currently
2539     * available storage on the device is less than the requested
2540     * free storage, some or all of the cache files across
2541     * all applications are deleted (based on last accessed time)
2542     * to increase the free storage space on the device to
2543     * the requested value. There is no guarantee that clearing all
2544     * the cache files from all applications will clear up
2545     * enough storage to achieve the desired value.
2546     * @param freeStorageSize The number of bytes of storage to be
2547     * freed by the system. Say if freeStorageSize is XX,
2548     * and the current free storage is YY,
2549     * if XX is less than YY, just return. if not free XX-YY number
2550     * of bytes if possible.
2551     * @param observer call back used to notify when
2552     * the operation is completed
2553     *
2554     * @hide
2555     */
2556    public abstract void freeStorageAndNotify(long freeStorageSize, IPackageDataObserver observer);
2557
2558    /**
2559     * Free storage by deleting LRU sorted list of cache files across
2560     * all applications. If the currently available free storage
2561     * on the device is greater than or equal to the requested
2562     * free storage, no cache files are cleared. If the currently
2563     * available storage on the device is less than the requested
2564     * free storage, some or all of the cache files across
2565     * all applications are deleted (based on last accessed time)
2566     * to increase the free storage space on the device to
2567     * the requested value. There is no guarantee that clearing all
2568     * the cache files from all applications will clear up
2569     * enough storage to achieve the desired value.
2570     * @param freeStorageSize The number of bytes of storage to be
2571     * freed by the system. Say if freeStorageSize is XX,
2572     * and the current free storage is YY,
2573     * if XX is less than YY, just return. if not free XX-YY number
2574     * of bytes if possible.
2575     * @param pi IntentSender call back used to
2576     * notify when the operation is completed.May be null
2577     * to indicate that no call back is desired.
2578     *
2579     * @hide
2580     */
2581    public abstract void freeStorage(long freeStorageSize, IntentSender pi);
2582
2583    /**
2584     * Retrieve the size information for a package.
2585     * Since this may take a little while, the result will
2586     * be posted back to the given observer.  The calling context
2587     * should have the {@link android.Manifest.permission#GET_PACKAGE_SIZE} permission.
2588     *
2589     * @param packageName The name of the package whose size information is to be retrieved
2590     * @param userHandle The user whose size information should be retrieved.
2591     * @param observer An observer callback to get notified when the operation
2592     * is complete.
2593     * {@link android.content.pm.IPackageStatsObserver#onGetStatsCompleted(PackageStats, boolean)}
2594     * The observer's callback is invoked with a PackageStats object(containing the
2595     * code, data and cache sizes of the package) and a boolean value representing
2596     * the status of the operation. observer may be null to indicate that
2597     * no callback is desired.
2598     *
2599     * @hide
2600     */
2601    public abstract void getPackageSizeInfo(String packageName, int userHandle,
2602            IPackageStatsObserver observer);
2603
2604    /**
2605     * Like {@link #getPackageSizeInfo(String, int, IPackageStatsObserver)}, but
2606     * returns the size for the calling user.
2607     *
2608     * @hide
2609     */
2610    public void getPackageSizeInfo(String packageName, IPackageStatsObserver observer) {
2611        getPackageSizeInfo(packageName, UserHandle.myUserId(), observer);
2612    }
2613
2614    /**
2615     * @deprecated This function no longer does anything; it was an old
2616     * approach to managing preferred activities, which has been superceeded
2617     * (and conflicts with) the modern activity-based preferences.
2618     */
2619    @Deprecated
2620    public abstract void addPackageToPreferred(String packageName);
2621
2622    /**
2623     * @deprecated This function no longer does anything; it was an old
2624     * approach to managing preferred activities, which has been superceeded
2625     * (and conflicts with) the modern activity-based preferences.
2626     */
2627    @Deprecated
2628    public abstract void removePackageFromPreferred(String packageName);
2629
2630    /**
2631     * Retrieve the list of all currently configured preferred packages.  The
2632     * first package on the list is the most preferred, the last is the
2633     * least preferred.
2634     *
2635     * @param flags Additional option flags. Use any combination of
2636     * {@link #GET_ACTIVITIES},
2637     * {@link #GET_GIDS},
2638     * {@link #GET_CONFIGURATIONS},
2639     * {@link #GET_INSTRUMENTATION},
2640     * {@link #GET_PERMISSIONS},
2641     * {@link #GET_PROVIDERS},
2642     * {@link #GET_RECEIVERS},
2643     * {@link #GET_SERVICES},
2644     * {@link #GET_SIGNATURES}, to modify the data returned.
2645     *
2646     * @return Returns a list of PackageInfo objects describing each
2647     * preferred application, in order of preference.
2648     *
2649     * @see #GET_ACTIVITIES
2650     * @see #GET_GIDS
2651     * @see #GET_CONFIGURATIONS
2652     * @see #GET_INSTRUMENTATION
2653     * @see #GET_PERMISSIONS
2654     * @see #GET_PROVIDERS
2655     * @see #GET_RECEIVERS
2656     * @see #GET_SERVICES
2657     * @see #GET_SIGNATURES
2658     */
2659    public abstract List<PackageInfo> getPreferredPackages(int flags);
2660
2661    /**
2662     * @deprecated This is a protected API that should not have been available
2663     * to third party applications.  It is the platform's responsibility for
2664     * assigning preferred activities and this can not be directly modified.
2665     *
2666     * Add a new preferred activity mapping to the system.  This will be used
2667     * to automatically select the given activity component when
2668     * {@link Context#startActivity(Intent) Context.startActivity()} finds
2669     * multiple matching activities and also matches the given filter.
2670     *
2671     * @param filter The set of intents under which this activity will be
2672     * made preferred.
2673     * @param match The IntentFilter match category that this preference
2674     * applies to.
2675     * @param set The set of activities that the user was picking from when
2676     * this preference was made.
2677     * @param activity The component name of the activity that is to be
2678     * preferred.
2679     */
2680    @Deprecated
2681    public abstract void addPreferredActivity(IntentFilter filter, int match,
2682            ComponentName[] set, ComponentName activity);
2683
2684    /**
2685     * Same as {@link #addPreferredActivity(IntentFilter, int,
2686            ComponentName[], ComponentName)}, but with a specific userId to apply the preference
2687            to.
2688     * @hide
2689     */
2690    public void addPreferredActivity(IntentFilter filter, int match,
2691            ComponentName[] set, ComponentName activity, int userId) {
2692        throw new RuntimeException("Not implemented. Must override in a subclass.");
2693    }
2694
2695    /**
2696     * @deprecated This is a protected API that should not have been available
2697     * to third party applications.  It is the platform's responsibility for
2698     * assigning preferred activities and this can not be directly modified.
2699     *
2700     * Replaces an existing preferred activity mapping to the system, and if that were not present
2701     * adds a new preferred activity.  This will be used
2702     * to automatically select the given activity component when
2703     * {@link Context#startActivity(Intent) Context.startActivity()} finds
2704     * multiple matching activities and also matches the given filter.
2705     *
2706     * @param filter The set of intents under which this activity will be
2707     * made preferred.
2708     * @param match The IntentFilter match category that this preference
2709     * applies to.
2710     * @param set The set of activities that the user was picking from when
2711     * this preference was made.
2712     * @param activity The component name of the activity that is to be
2713     * preferred.
2714     * @hide
2715     */
2716    @Deprecated
2717    public abstract void replacePreferredActivity(IntentFilter filter, int match,
2718            ComponentName[] set, ComponentName activity);
2719
2720    /**
2721     * Remove all preferred activity mappings, previously added with
2722     * {@link #addPreferredActivity}, from the
2723     * system whose activities are implemented in the given package name.
2724     * An application can only clear its own package(s).
2725     *
2726     * @param packageName The name of the package whose preferred activity
2727     * mappings are to be removed.
2728     */
2729    public abstract void clearPackagePreferredActivities(String packageName);
2730
2731    /**
2732     * Retrieve all preferred activities, previously added with
2733     * {@link #addPreferredActivity}, that are
2734     * currently registered with the system.
2735     *
2736     * @param outFilters A list in which to place the filters of all of the
2737     * preferred activities, or null for none.
2738     * @param outActivities A list in which to place the component names of
2739     * all of the preferred activities, or null for none.
2740     * @param packageName An option package in which you would like to limit
2741     * the list.  If null, all activities will be returned; if non-null, only
2742     * those activities in the given package are returned.
2743     *
2744     * @return Returns the total number of registered preferred activities
2745     * (the number of distinct IntentFilter records, not the number of unique
2746     * activity components) that were found.
2747     */
2748    public abstract int getPreferredActivities(List<IntentFilter> outFilters,
2749            List<ComponentName> outActivities, String packageName);
2750
2751    /**
2752     * Set the enabled setting for a package component (activity, receiver, service, provider).
2753     * This setting will override any enabled state which may have been set by the component in its
2754     * manifest.
2755     *
2756     * @param componentName The component to enable
2757     * @param newState The new enabled state for the component.  The legal values for this state
2758     *                 are:
2759     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
2760     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
2761     *                   and
2762     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
2763     *                 The last one removes the setting, thereby restoring the component's state to
2764     *                 whatever was set in it's manifest (or enabled, by default).
2765     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
2766     */
2767    public abstract void setComponentEnabledSetting(ComponentName componentName,
2768            int newState, int flags);
2769
2770
2771    /**
2772     * Return the the enabled setting for a package component (activity,
2773     * receiver, service, provider).  This returns the last value set by
2774     * {@link #setComponentEnabledSetting(ComponentName, int, int)}; in most
2775     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
2776     * the value originally specified in the manifest has not been modified.
2777     *
2778     * @param componentName The component to retrieve.
2779     * @return Returns the current enabled state for the component.  May
2780     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
2781     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
2782     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
2783     * component's enabled state is based on the original information in
2784     * the manifest as found in {@link ComponentInfo}.
2785     */
2786    public abstract int getComponentEnabledSetting(ComponentName componentName);
2787
2788    /**
2789     * Set the enabled setting for an application
2790     * This setting will override any enabled state which may have been set by the application in
2791     * its manifest.  It also overrides the enabled state set in the manifest for any of the
2792     * application's components.  It does not override any enabled state set by
2793     * {@link #setComponentEnabledSetting} for any of the application's components.
2794     *
2795     * @param packageName The package name of the application to enable
2796     * @param newState The new enabled state for the component.  The legal values for this state
2797     *                 are:
2798     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
2799     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
2800     *                   and
2801     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
2802     *                 The last one removes the setting, thereby restoring the applications's state to
2803     *                 whatever was set in its manifest (or enabled, by default).
2804     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
2805     */
2806    public abstract void setApplicationEnabledSetting(String packageName,
2807            int newState, int flags);
2808
2809    /**
2810     * Return the the enabled setting for an application.  This returns
2811     * the last value set by
2812     * {@link #setApplicationEnabledSetting(String, int, int)}; in most
2813     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
2814     * the value originally specified in the manifest has not been modified.
2815     *
2816     * @param packageName The component to retrieve.
2817     * @return Returns the current enabled state for the component.  May
2818     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
2819     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
2820     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
2821     * application's enabled state is based on the original information in
2822     * the manifest as found in {@link ComponentInfo}.
2823     * @throws IllegalArgumentException if the named package does not exist.
2824     */
2825    public abstract int getApplicationEnabledSetting(String packageName);
2826
2827    /**
2828     * Return whether the device has been booted into safe mode.
2829     */
2830    public abstract boolean isSafeMode();
2831
2832    /**
2833     * Attempts to move package resources from internal to external media or vice versa.
2834     * Since this may take a little while, the result will
2835     * be posted back to the given observer.   This call may fail if the calling context
2836     * lacks the {@link android.Manifest.permission#MOVE_PACKAGE} permission, if the
2837     * named package cannot be found, or if the named package is a "system package".
2838     *
2839     * @param packageName The name of the package to delete
2840     * @param observer An observer callback to get notified when the package move is
2841     * complete. {@link android.content.pm.IPackageMoveObserver#packageMoved(boolean)} will be
2842     * called when that happens.  observer may be null to indicate that no callback is desired.
2843     * @param flags To indicate install location {@link #MOVE_INTERNAL} or
2844     * {@link #MOVE_EXTERNAL_MEDIA}
2845     *
2846     * @hide
2847     */
2848    public abstract void movePackage(
2849            String packageName, IPackageMoveObserver observer, int flags);
2850
2851    /**
2852     * Returns the device identity that verifiers can use to associate their scheme to a particular
2853     * device. This should not be used by anything other than a package verifier.
2854     *
2855     * @return identity that uniquely identifies current device
2856     * @hide
2857     */
2858    public abstract VerifierDeviceIdentity getVerifierDeviceIdentity();
2859
2860    /**
2861     * Returns the data directory for a particular user and package, given the uid of the package.
2862     * @param uid uid of the package, including the userId and appId
2863     * @param packageName name of the package
2864     * @return the user-specific data directory for the package
2865     * @hide
2866     */
2867    public static String getDataDirForUser(int userId, String packageName) {
2868        // TODO: This should be shared with Installer's knowledge of user directory
2869        return Environment.getDataDirectory().toString() + "/user/" + userId
2870                + "/" + packageName;
2871    }
2872}
2873