PackageManager.java revision 7629a18a3f190368e6268d3f2827824905683268
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.content.pm;
18
19import android.annotation.IntDef;
20import android.annotation.SdkConstant;
21import android.annotation.SdkConstant.SdkConstantType;
22import android.content.ComponentName;
23import android.content.Context;
24import android.content.Intent;
25import android.content.IntentFilter;
26import android.content.IntentSender;
27import android.content.res.Resources;
28import android.content.res.XmlResourceParser;
29import android.graphics.drawable.Drawable;
30import android.net.Uri;
31import android.os.Environment;
32import android.os.UserHandle;
33import android.util.AndroidException;
34import android.util.DisplayMetrics;
35
36import java.io.File;
37import java.lang.annotation.Retention;
38import java.lang.annotation.RetentionPolicy;
39import java.util.List;
40
41/**
42 * Class for retrieving various kinds of information related to the application
43 * packages that are currently installed on the device.
44 *
45 * You can find this class through {@link Context#getPackageManager}.
46 */
47public abstract class PackageManager {
48
49    /**
50     * This exception is thrown when a given package, application, or component
51     * name cannot be found.
52     */
53    public static class NameNotFoundException extends AndroidException {
54        public NameNotFoundException() {
55        }
56
57        public NameNotFoundException(String name) {
58            super(name);
59        }
60    }
61
62    /**
63     * {@link PackageInfo} flag: return information about
64     * activities in the package in {@link PackageInfo#activities}.
65     */
66    public static final int GET_ACTIVITIES              = 0x00000001;
67
68    /**
69     * {@link PackageInfo} flag: return information about
70     * intent receivers in the package in
71     * {@link PackageInfo#receivers}.
72     */
73    public static final int GET_RECEIVERS               = 0x00000002;
74
75    /**
76     * {@link PackageInfo} flag: return information about
77     * services in the package in {@link PackageInfo#services}.
78     */
79    public static final int GET_SERVICES                = 0x00000004;
80
81    /**
82     * {@link PackageInfo} flag: return information about
83     * content providers in the package in
84     * {@link PackageInfo#providers}.
85     */
86    public static final int GET_PROVIDERS               = 0x00000008;
87
88    /**
89     * {@link PackageInfo} flag: return information about
90     * instrumentation in the package in
91     * {@link PackageInfo#instrumentation}.
92     */
93    public static final int GET_INSTRUMENTATION         = 0x00000010;
94
95    /**
96     * {@link PackageInfo} flag: return information about the
97     * intent filters supported by the activity.
98     */
99    public static final int GET_INTENT_FILTERS          = 0x00000020;
100
101    /**
102     * {@link PackageInfo} flag: return information about the
103     * signatures included in the package.
104     */
105    public static final int GET_SIGNATURES          = 0x00000040;
106
107    /**
108     * {@link ResolveInfo} flag: return the IntentFilter that
109     * was matched for a particular ResolveInfo in
110     * {@link ResolveInfo#filter}.
111     */
112    public static final int GET_RESOLVED_FILTER         = 0x00000040;
113
114    /**
115     * {@link ComponentInfo} flag: return the {@link ComponentInfo#metaData}
116     * data {@link android.os.Bundle}s that are associated with a component.
117     * This applies for any API returning a ComponentInfo subclass.
118     */
119    public static final int GET_META_DATA               = 0x00000080;
120
121    /**
122     * {@link PackageInfo} flag: return the
123     * {@link PackageInfo#gids group ids} that are associated with an
124     * application.
125     * This applies for any API returning a PackageInfo class, either
126     * directly or nested inside of another.
127     */
128    public static final int GET_GIDS                    = 0x00000100;
129
130    /**
131     * {@link PackageInfo} flag: include disabled components in the returned info.
132     */
133    public static final int GET_DISABLED_COMPONENTS     = 0x00000200;
134
135    /**
136     * {@link ApplicationInfo} flag: return the
137     * {@link ApplicationInfo#sharedLibraryFiles paths to the shared libraries}
138     * that are associated with an application.
139     * This applies for any API returning an ApplicationInfo class, either
140     * directly or nested inside of another.
141     */
142    public static final int GET_SHARED_LIBRARY_FILES    = 0x00000400;
143
144    /**
145     * {@link ProviderInfo} flag: return the
146     * {@link ProviderInfo#uriPermissionPatterns URI permission patterns}
147     * that are associated with a content provider.
148     * This applies for any API returning a ProviderInfo class, either
149     * directly or nested inside of another.
150     */
151    public static final int GET_URI_PERMISSION_PATTERNS  = 0x00000800;
152    /**
153     * {@link PackageInfo} flag: return information about
154     * permissions in the package in
155     * {@link PackageInfo#permissions}.
156     */
157    public static final int GET_PERMISSIONS               = 0x00001000;
158
159    /**
160     * Flag parameter to retrieve some information about all applications (even
161     * uninstalled ones) which have data directories. This state could have
162     * resulted if applications have been deleted with flag
163     * {@code DONT_DELETE_DATA} with a possibility of being replaced or
164     * reinstalled in future.
165     * <p>
166     * Note: this flag may cause less information about currently installed
167     * applications to be returned.
168     */
169    public static final int GET_UNINSTALLED_PACKAGES = 0x00002000;
170
171    /**
172     * {@link PackageInfo} flag: return information about
173     * hardware preferences in
174     * {@link PackageInfo#configPreferences PackageInfo.configPreferences} and
175     * requested features in {@link PackageInfo#reqFeatures
176     * PackageInfo.reqFeatures}.
177     */
178    public static final int GET_CONFIGURATIONS = 0x00004000;
179
180    /**
181     * {@link PackageInfo} flag: include disabled components which are in
182     * that state only because of {@link #COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED}
183     * in the returned info.  Note that if you set this flag, applications
184     * that are in this disabled state will be reported as enabled.
185     */
186    public static final int GET_DISABLED_UNTIL_USED_COMPONENTS = 0x00008000;
187
188    /**
189     * Resolution and querying flag: if set, only filters that support the
190     * {@link android.content.Intent#CATEGORY_DEFAULT} will be considered for
191     * matching.  This is a synonym for including the CATEGORY_DEFAULT in your
192     * supplied Intent.
193     */
194    public static final int MATCH_DEFAULT_ONLY   = 0x00010000;
195
196    /** @hide */
197    @IntDef({PERMISSION_GRANTED, PERMISSION_DENIED})
198    @Retention(RetentionPolicy.SOURCE)
199    public @interface PermissionResult {}
200
201    /**
202     * Permission check result: this is returned by {@link #checkPermission}
203     * if the permission has been granted to the given package.
204     */
205    public static final int PERMISSION_GRANTED = 0;
206
207    /**
208     * Permission check result: this is returned by {@link #checkPermission}
209     * if the permission has not been granted to the given package.
210     */
211    public static final int PERMISSION_DENIED = -1;
212
213    /**
214     * Signature check result: this is returned by {@link #checkSignatures}
215     * if all signatures on the two packages match.
216     */
217    public static final int SIGNATURE_MATCH = 0;
218
219    /**
220     * Signature check result: this is returned by {@link #checkSignatures}
221     * if neither of the two packages is signed.
222     */
223    public static final int SIGNATURE_NEITHER_SIGNED = 1;
224
225    /**
226     * Signature check result: this is returned by {@link #checkSignatures}
227     * if the first package is not signed but the second is.
228     */
229    public static final int SIGNATURE_FIRST_NOT_SIGNED = -1;
230
231    /**
232     * Signature check result: this is returned by {@link #checkSignatures}
233     * if the second package is not signed but the first is.
234     */
235    public static final int SIGNATURE_SECOND_NOT_SIGNED = -2;
236
237    /**
238     * Signature check result: this is returned by {@link #checkSignatures}
239     * if not all signatures on both packages match.
240     */
241    public static final int SIGNATURE_NO_MATCH = -3;
242
243    /**
244     * Signature check result: this is returned by {@link #checkSignatures}
245     * if either of the packages are not valid.
246     */
247    public static final int SIGNATURE_UNKNOWN_PACKAGE = -4;
248
249    /**
250     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
251     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
252     * component or application is in its default enabled state (as specified
253     * in its manifest).
254     */
255    public static final int COMPONENT_ENABLED_STATE_DEFAULT = 0;
256
257    /**
258     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
259     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
260     * component or application has been explictily enabled, regardless of
261     * what it has specified in its manifest.
262     */
263    public static final int COMPONENT_ENABLED_STATE_ENABLED = 1;
264
265    /**
266     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
267     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
268     * component or application has been explicitly disabled, regardless of
269     * what it has specified in its manifest.
270     */
271    public static final int COMPONENT_ENABLED_STATE_DISABLED = 2;
272
273    /**
274     * Flag for {@link #setApplicationEnabledSetting(String, int, int)} only: The
275     * user has explicitly disabled the application, regardless of what it has
276     * specified in its manifest.  Because this is due to the user's request,
277     * they may re-enable it if desired through the appropriate system UI.  This
278     * option currently <strong>cannot</strong> be used with
279     * {@link #setComponentEnabledSetting(ComponentName, int, int)}.
280     */
281    public static final int COMPONENT_ENABLED_STATE_DISABLED_USER = 3;
282
283    /**
284     * Flag for {@link #setApplicationEnabledSetting(String, int, int)} only: This
285     * application should be considered, until the point where the user actually
286     * wants to use it.  This means that it will not normally show up to the user
287     * (such as in the launcher), but various parts of the user interface can
288     * use {@link #GET_DISABLED_UNTIL_USED_COMPONENTS} to still see it and allow
289     * the user to select it (as for example an IME, device admin, etc).  Such code,
290     * once the user has selected the app, should at that point also make it enabled.
291     * This option currently <strong>can not</strong> be used with
292     * {@link #setComponentEnabledSetting(ComponentName, int, int)}.
293     */
294    public static final int COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED = 4;
295
296    /**
297     * Flag parameter for {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} to
298     * indicate that this package should be installed as forward locked, i.e. only the app itself
299     * should have access to its code and non-resource assets.
300     * @hide
301     */
302    public static final int INSTALL_FORWARD_LOCK = 0x00000001;
303
304    /**
305     * Flag parameter for {@link #installPackage} to indicate that you want to replace an already
306     * installed package, if one exists.
307     * @hide
308     */
309    public static final int INSTALL_REPLACE_EXISTING = 0x00000002;
310
311    /**
312     * Flag parameter for {@link #installPackage} to indicate that you want to
313     * allow test packages (those that have set android:testOnly in their
314     * manifest) to be installed.
315     * @hide
316     */
317    public static final int INSTALL_ALLOW_TEST = 0x00000004;
318
319    /**
320     * Flag parameter for {@link #installPackage} to indicate that this
321     * package has to be installed on the sdcard.
322     * @hide
323     */
324    public static final int INSTALL_EXTERNAL = 0x00000008;
325
326    /**
327     * Flag parameter for {@link #installPackage} to indicate that this package
328     * has to be installed on the sdcard.
329     * @hide
330     */
331    public static final int INSTALL_INTERNAL = 0x00000010;
332
333    /**
334     * Flag parameter for {@link #installPackage} to indicate that this install
335     * was initiated via ADB.
336     *
337     * @hide
338     */
339    public static final int INSTALL_FROM_ADB = 0x00000020;
340
341    /**
342     * Flag parameter for {@link #installPackage} to indicate that this install
343     * should immediately be visible to all users.
344     *
345     * @hide
346     */
347    public static final int INSTALL_ALL_USERS = 0x00000040;
348
349    /**
350     * Flag parameter for {@link #installPackage} to indicate that it is okay
351     * to install an update to an app where the newly installed app has a lower
352     * version code than the currently installed app.
353     *
354     * @hide
355     */
356    public static final int INSTALL_ALLOW_DOWNGRADE = 0x00000080;
357
358    /**
359     * Flag parameter for
360     * {@link #setComponentEnabledSetting(android.content.ComponentName, int, int)} to indicate
361     * that you don't want to kill the app containing the component.  Be careful when you set this
362     * since changing component states can make the containing application's behavior unpredictable.
363     */
364    public static final int DONT_KILL_APP = 0x00000001;
365
366    /**
367     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
368     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} on success.
369     * @hide
370     */
371    public static final int INSTALL_SUCCEEDED = 1;
372
373    /**
374     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
375     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package is
376     * already installed.
377     * @hide
378     */
379    public static final int INSTALL_FAILED_ALREADY_EXISTS = -1;
380
381    /**
382     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
383     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package archive
384     * file is invalid.
385     * @hide
386     */
387    public static final int INSTALL_FAILED_INVALID_APK = -2;
388
389    /**
390     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
391     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the URI passed in
392     * is invalid.
393     * @hide
394     */
395    public static final int INSTALL_FAILED_INVALID_URI = -3;
396
397    /**
398     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
399     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package manager
400     * service found that the device didn't have enough storage space to install the app.
401     * @hide
402     */
403    public static final int INSTALL_FAILED_INSUFFICIENT_STORAGE = -4;
404
405    /**
406     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
407     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if a
408     * package is already installed with the same name.
409     * @hide
410     */
411    public static final int INSTALL_FAILED_DUPLICATE_PACKAGE = -5;
412
413    /**
414     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
415     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
416     * the requested shared user does not exist.
417     * @hide
418     */
419    public static final int INSTALL_FAILED_NO_SHARED_USER = -6;
420
421    /**
422     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
423     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
424     * a previously installed package of the same name has a different signature
425     * than the new package (and the old package's data was not removed).
426     * @hide
427     */
428    public static final int INSTALL_FAILED_UPDATE_INCOMPATIBLE = -7;
429
430    /**
431     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
432     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
433     * the new package is requested a shared user which is already installed on the
434     * device and does not have matching signature.
435     * @hide
436     */
437    public static final int INSTALL_FAILED_SHARED_USER_INCOMPATIBLE = -8;
438
439    /**
440     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
441     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
442     * the new package uses a shared library that is not available.
443     * @hide
444     */
445    public static final int INSTALL_FAILED_MISSING_SHARED_LIBRARY = -9;
446
447    /**
448     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
449     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
450     * the new package uses a shared library that is not available.
451     * @hide
452     */
453    public static final int INSTALL_FAILED_REPLACE_COULDNT_DELETE = -10;
454
455    /**
456     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
457     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
458     * the new package failed while optimizing and validating its dex files,
459     * either because there was not enough storage or the validation failed.
460     * @hide
461     */
462    public static final int INSTALL_FAILED_DEXOPT = -11;
463
464    /**
465     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
466     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
467     * the new package failed because the current SDK version is older than
468     * that required by the package.
469     * @hide
470     */
471    public static final int INSTALL_FAILED_OLDER_SDK = -12;
472
473    /**
474     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
475     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
476     * the new package failed because it contains a content provider with the
477     * same authority as a provider already installed in the system.
478     * @hide
479     */
480    public static final int INSTALL_FAILED_CONFLICTING_PROVIDER = -13;
481
482    /**
483     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
484     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
485     * the new package failed because the current SDK version is newer than
486     * that required by the package.
487     * @hide
488     */
489    public static final int INSTALL_FAILED_NEWER_SDK = -14;
490
491    /**
492     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
493     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
494     * the new package failed because it has specified that it is a test-only
495     * package and the caller has not supplied the {@link #INSTALL_ALLOW_TEST}
496     * flag.
497     * @hide
498     */
499    public static final int INSTALL_FAILED_TEST_ONLY = -15;
500
501    /**
502     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
503     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
504     * the package being installed contains native code, but none that is
505     * compatible with the the device's CPU_ABI.
506     * @hide
507     */
508    public static final int INSTALL_FAILED_CPU_ABI_INCOMPATIBLE = -16;
509
510    /**
511     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
512     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
513     * the new package uses a feature that is not available.
514     * @hide
515     */
516    public static final int INSTALL_FAILED_MISSING_FEATURE = -17;
517
518    // ------ Errors related to sdcard
519    /**
520     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
521     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
522     * a secure container mount point couldn't be accessed on external media.
523     * @hide
524     */
525    public static final int INSTALL_FAILED_CONTAINER_ERROR = -18;
526
527    /**
528     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
529     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
530     * the new package couldn't be installed in the specified install
531     * location.
532     * @hide
533     */
534    public static final int INSTALL_FAILED_INVALID_INSTALL_LOCATION = -19;
535
536    /**
537     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
538     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
539     * the new package couldn't be installed in the specified install
540     * location because the media is not available.
541     * @hide
542     */
543    public static final int INSTALL_FAILED_MEDIA_UNAVAILABLE = -20;
544
545    /**
546     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
547     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
548     * the new package couldn't be installed because the verification timed out.
549     * @hide
550     */
551    public static final int INSTALL_FAILED_VERIFICATION_TIMEOUT = -21;
552
553    /**
554     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
555     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
556     * the new package couldn't be installed because the verification did not succeed.
557     * @hide
558     */
559    public static final int INSTALL_FAILED_VERIFICATION_FAILURE = -22;
560
561    /**
562     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
563     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
564     * the package changed from what the calling program expected.
565     * @hide
566     */
567    public static final int INSTALL_FAILED_PACKAGE_CHANGED = -23;
568
569    /**
570     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
571     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
572     * the new package is assigned a different UID than it previously held.
573     * @hide
574     */
575    public static final int INSTALL_FAILED_UID_CHANGED = -24;
576
577    /**
578     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
579     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
580     * the new package has an older version code than the currently installed package.
581     * @hide
582     */
583    public static final int INSTALL_FAILED_VERSION_DOWNGRADE = -25;
584
585    /**
586     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
587     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
588     * if the parser was given a path that is not a file, or does not end with the expected
589     * '.apk' extension.
590     * @hide
591     */
592    public static final int INSTALL_PARSE_FAILED_NOT_APK = -100;
593
594    /**
595     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
596     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
597     * if the parser was unable to retrieve the AndroidManifest.xml file.
598     * @hide
599     */
600    public static final int INSTALL_PARSE_FAILED_BAD_MANIFEST = -101;
601
602    /**
603     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
604     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
605     * if the parser encountered an unexpected exception.
606     * @hide
607     */
608    public static final int INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION = -102;
609
610    /**
611     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
612     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
613     * if the parser did not find any certificates in the .apk.
614     * @hide
615     */
616    public static final int INSTALL_PARSE_FAILED_NO_CERTIFICATES = -103;
617
618    /**
619     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
620     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
621     * if the parser found inconsistent certificates on the files in the .apk.
622     * @hide
623     */
624    public static final int INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES = -104;
625
626    /**
627     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
628     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
629     * if the parser encountered a CertificateEncodingException in one of the
630     * files in the .apk.
631     * @hide
632     */
633    public static final int INSTALL_PARSE_FAILED_CERTIFICATE_ENCODING = -105;
634
635    /**
636     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
637     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
638     * if the parser encountered a bad or missing package name in the manifest.
639     * @hide
640     */
641    public static final int INSTALL_PARSE_FAILED_BAD_PACKAGE_NAME = -106;
642
643    /**
644     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
645     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
646     * if the parser encountered a bad shared user id name in the manifest.
647     * @hide
648     */
649    public static final int INSTALL_PARSE_FAILED_BAD_SHARED_USER_ID = -107;
650
651    /**
652     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
653     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
654     * if the parser encountered some structural problem in the manifest.
655     * @hide
656     */
657    public static final int INSTALL_PARSE_FAILED_MANIFEST_MALFORMED = -108;
658
659    /**
660     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
661     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
662     * if the parser did not find any actionable tags (instrumentation or application)
663     * in the manifest.
664     * @hide
665     */
666    public static final int INSTALL_PARSE_FAILED_MANIFEST_EMPTY = -109;
667
668    /**
669     * Installation failed return code: this is passed to the {@link IPackageInstallObserver} by
670     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
671     * if the system failed to install the package because of system issues.
672     * @hide
673     */
674    public static final int INSTALL_FAILED_INTERNAL_ERROR = -110;
675
676    /**
677     * Installation failed return code: this is passed to the {@link IPackageInstallObserver} by
678     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
679     * if the system failed to install the package because the user is restricted from installing
680     * apps.
681     * @hide
682     */
683    public static final int INSTALL_FAILED_USER_RESTRICTED = -111;
684
685    /**
686     * Flag parameter for {@link #deletePackage} to indicate that you don't want to delete the
687     * package's data directory.
688     *
689     * @hide
690     */
691    public static final int DELETE_KEEP_DATA = 0x00000001;
692
693    /**
694     * Flag parameter for {@link #deletePackage} to indicate that you want the
695     * package deleted for all users.
696     *
697     * @hide
698     */
699    public static final int DELETE_ALL_USERS = 0x00000002;
700
701    /**
702     * Flag parameter for {@link #deletePackage} to indicate that, if you are calling
703     * uninstall on a system that has been updated, then don't do the normal process
704     * of uninstalling the update and rolling back to the older system version (which
705     * needs to happen for all users); instead, just mark the app as uninstalled for
706     * the current user.
707     *
708     * @hide
709     */
710    public static final int DELETE_SYSTEM_APP = 0x00000004;
711
712    /**
713     * Return code for when package deletion succeeds. This is passed to the
714     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
715     * succeeded in deleting the package.
716     *
717     * @hide
718     */
719    public static final int DELETE_SUCCEEDED = 1;
720
721    /**
722     * Deletion failed return code: this is passed to the
723     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
724     * failed to delete the package for an unspecified reason.
725     *
726     * @hide
727     */
728    public static final int DELETE_FAILED_INTERNAL_ERROR = -1;
729
730    /**
731     * Deletion failed return code: this is passed to the
732     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
733     * failed to delete the package because it is the active DevicePolicy
734     * manager.
735     *
736     * @hide
737     */
738    public static final int DELETE_FAILED_DEVICE_POLICY_MANAGER = -2;
739
740    /**
741     * Deletion failed return code: this is passed to the
742     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
743     * failed to delete the package since the user is restricted.
744     *
745     * @hide
746     */
747    public static final int DELETE_FAILED_USER_RESTRICTED = -3;
748
749    /**
750     * Return code that is passed to the {@link IPackageMoveObserver} by
751     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)} when the
752     * package has been successfully moved by the system.
753     *
754     * @hide
755     */
756    public static final int MOVE_SUCCEEDED = 1;
757    /**
758     * Error code that is passed to the {@link IPackageMoveObserver} by
759     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
760     * when the package hasn't been successfully moved by the system
761     * because of insufficient memory on specified media.
762     * @hide
763     */
764    public static final int MOVE_FAILED_INSUFFICIENT_STORAGE = -1;
765
766    /**
767     * Error code that is passed to the {@link IPackageMoveObserver} by
768     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
769     * if the specified package doesn't exist.
770     * @hide
771     */
772    public static final int MOVE_FAILED_DOESNT_EXIST = -2;
773
774    /**
775     * Error code that is passed to the {@link IPackageMoveObserver} by
776     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
777     * if the specified package cannot be moved since its a system package.
778     * @hide
779     */
780    public static final int MOVE_FAILED_SYSTEM_PACKAGE = -3;
781
782    /**
783     * Error code that is passed to the {@link IPackageMoveObserver} by
784     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
785     * if the specified package cannot be moved since its forward locked.
786     * @hide
787     */
788    public static final int MOVE_FAILED_FORWARD_LOCKED = -4;
789
790    /**
791     * Error code that is passed to the {@link IPackageMoveObserver} by
792     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
793     * if the specified package cannot be moved to the specified location.
794     * @hide
795     */
796    public static final int MOVE_FAILED_INVALID_LOCATION = -5;
797
798    /**
799     * Error code that is passed to the {@link IPackageMoveObserver} by
800     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
801     * if the specified package cannot be moved to the specified location.
802     * @hide
803     */
804    public static final int MOVE_FAILED_INTERNAL_ERROR = -6;
805
806    /**
807     * Error code that is passed to the {@link IPackageMoveObserver} by
808     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)} if the
809     * specified package already has an operation pending in the
810     * {@link PackageHandler} queue.
811     *
812     * @hide
813     */
814    public static final int MOVE_FAILED_OPERATION_PENDING = -7;
815
816    /**
817     * Flag parameter for {@link #movePackage} to indicate that
818     * the package should be moved to internal storage if its
819     * been installed on external media.
820     * @hide
821     */
822    public static final int MOVE_INTERNAL = 0x00000001;
823
824    /**
825     * Flag parameter for {@link #movePackage} to indicate that
826     * the package should be moved to external media.
827     * @hide
828     */
829    public static final int MOVE_EXTERNAL_MEDIA = 0x00000002;
830
831    /**
832     * Usable by the required verifier as the {@code verificationCode} argument
833     * for {@link PackageManager#verifyPendingInstall} to indicate that it will
834     * allow the installation to proceed without any of the optional verifiers
835     * needing to vote.
836     *
837     * @hide
838     */
839    public static final int VERIFICATION_ALLOW_WITHOUT_SUFFICIENT = 2;
840
841    /**
842     * Used as the {@code verificationCode} argument for
843     * {@link PackageManager#verifyPendingInstall} to indicate that the calling
844     * package verifier allows the installation to proceed.
845     */
846    public static final int VERIFICATION_ALLOW = 1;
847
848    /**
849     * Used as the {@code verificationCode} argument for
850     * {@link PackageManager#verifyPendingInstall} to indicate the calling
851     * package verifier does not vote to allow the installation to proceed.
852     */
853    public static final int VERIFICATION_REJECT = -1;
854
855    /**
856     * Can be used as the {@code millisecondsToDelay} argument for
857     * {@link PackageManager#extendVerificationTimeout}. This is the
858     * maximum time {@code PackageManager} waits for the verification
859     * agent to return (in milliseconds).
860     */
861    public static final long MAXIMUM_VERIFICATION_TIMEOUT = 60*60*1000;
862
863    /**
864     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}: The device's
865     * audio pipeline is low-latency, more suitable for audio applications sensitive to delays or
866     * lag in sound input or output.
867     */
868    @SdkConstant(SdkConstantType.FEATURE)
869    public static final String FEATURE_AUDIO_LOW_LATENCY = "android.hardware.audio.low_latency";
870
871    /**
872     * Feature for {@link #getSystemAvailableFeatures} and
873     * {@link #hasSystemFeature}: The device is capable of communicating with
874     * other devices via Bluetooth.
875     */
876    @SdkConstant(SdkConstantType.FEATURE)
877    public static final String FEATURE_BLUETOOTH = "android.hardware.bluetooth";
878
879    /**
880     * Feature for {@link #getSystemAvailableFeatures} and
881     * {@link #hasSystemFeature}: The device is capable of communicating with
882     * other devices via Bluetooth Low Energy radio.
883     */
884    @SdkConstant(SdkConstantType.FEATURE)
885    public static final String FEATURE_BLUETOOTH_LE = "android.hardware.bluetooth_le";
886
887    /**
888     * Feature for {@link #getSystemAvailableFeatures} and
889     * {@link #hasSystemFeature}: The device has a camera facing away
890     * from the screen.
891     */
892    @SdkConstant(SdkConstantType.FEATURE)
893    public static final String FEATURE_CAMERA = "android.hardware.camera";
894
895    /**
896     * Feature for {@link #getSystemAvailableFeatures} and
897     * {@link #hasSystemFeature}: The device's camera supports auto-focus.
898     */
899    @SdkConstant(SdkConstantType.FEATURE)
900    public static final String FEATURE_CAMERA_AUTOFOCUS = "android.hardware.camera.autofocus";
901
902    /**
903     * Feature for {@link #getSystemAvailableFeatures} and
904     * {@link #hasSystemFeature}: The device has at least one camera pointing in
905     * some direction.
906     */
907    @SdkConstant(SdkConstantType.FEATURE)
908    public static final String FEATURE_CAMERA_ANY = "android.hardware.camera.any";
909
910    /**
911     * Feature for {@link #getSystemAvailableFeatures} and
912     * {@link #hasSystemFeature}: The device's camera supports flash.
913     */
914    @SdkConstant(SdkConstantType.FEATURE)
915    public static final String FEATURE_CAMERA_FLASH = "android.hardware.camera.flash";
916
917    /**
918     * Feature for {@link #getSystemAvailableFeatures} and
919     * {@link #hasSystemFeature}: The device has a front facing camera.
920     */
921    @SdkConstant(SdkConstantType.FEATURE)
922    public static final String FEATURE_CAMERA_FRONT = "android.hardware.camera.front";
923
924    /**
925     * Feature for {@link #getSystemAvailableFeatures} and
926     * {@link #hasSystemFeature}: The device is capable of communicating with
927     * consumer IR devices.
928     */
929    @SdkConstant(SdkConstantType.FEATURE)
930    public static final String FEATURE_CONSUMER_IR = "android.hardware.consumerir";
931
932    /**
933     * Feature for {@link #getSystemAvailableFeatures} and
934     * {@link #hasSystemFeature}: The device supports one or more methods of
935     * reporting current location.
936     */
937    @SdkConstant(SdkConstantType.FEATURE)
938    public static final String FEATURE_LOCATION = "android.hardware.location";
939
940    /**
941     * Feature for {@link #getSystemAvailableFeatures} and
942     * {@link #hasSystemFeature}: The device has a Global Positioning System
943     * receiver and can report precise location.
944     */
945    @SdkConstant(SdkConstantType.FEATURE)
946    public static final String FEATURE_LOCATION_GPS = "android.hardware.location.gps";
947
948    /**
949     * Feature for {@link #getSystemAvailableFeatures} and
950     * {@link #hasSystemFeature}: The device can report location with coarse
951     * accuracy using a network-based geolocation system.
952     */
953    @SdkConstant(SdkConstantType.FEATURE)
954    public static final String FEATURE_LOCATION_NETWORK = "android.hardware.location.network";
955
956    /**
957     * Feature for {@link #getSystemAvailableFeatures} and
958     * {@link #hasSystemFeature}: The device can record audio via a
959     * microphone.
960     */
961    @SdkConstant(SdkConstantType.FEATURE)
962    public static final String FEATURE_MICROPHONE = "android.hardware.microphone";
963
964    /**
965     * Feature for {@link #getSystemAvailableFeatures} and
966     * {@link #hasSystemFeature}: The device can communicate using Near-Field
967     * Communications (NFC).
968     */
969    @SdkConstant(SdkConstantType.FEATURE)
970    public static final String FEATURE_NFC = "android.hardware.nfc";
971
972    /**
973     * Feature for {@link #getSystemAvailableFeatures} and
974     * {@link #hasSystemFeature}: The device supports host-
975     * based NFC card emulation.
976     *
977     * TODO remove when depending apps have moved to new constant.
978     * @hide
979     * @deprecated
980     */
981    @SdkConstant(SdkConstantType.FEATURE)
982    public static final String FEATURE_NFC_HCE = "android.hardware.nfc.hce";
983
984    /**
985     * Feature for {@link #getSystemAvailableFeatures} and
986     * {@link #hasSystemFeature}: The device supports host-
987     * based NFC card emulation.
988     */
989    @SdkConstant(SdkConstantType.FEATURE)
990    public static final String FEATURE_NFC_HOST_CARD_EMULATION = "android.hardware.nfc.hce";
991
992    /**
993     * Feature for {@link #getSystemAvailableFeatures} and
994     * {@link #hasSystemFeature}: The device includes an accelerometer.
995     */
996    @SdkConstant(SdkConstantType.FEATURE)
997    public static final String FEATURE_SENSOR_ACCELEROMETER = "android.hardware.sensor.accelerometer";
998
999    /**
1000     * Feature for {@link #getSystemAvailableFeatures} and
1001     * {@link #hasSystemFeature}: The device includes a barometer (air
1002     * pressure sensor.)
1003     */
1004    @SdkConstant(SdkConstantType.FEATURE)
1005    public static final String FEATURE_SENSOR_BAROMETER = "android.hardware.sensor.barometer";
1006
1007    /**
1008     * Feature for {@link #getSystemAvailableFeatures} and
1009     * {@link #hasSystemFeature}: The device includes a magnetometer (compass).
1010     */
1011    @SdkConstant(SdkConstantType.FEATURE)
1012    public static final String FEATURE_SENSOR_COMPASS = "android.hardware.sensor.compass";
1013
1014    /**
1015     * Feature for {@link #getSystemAvailableFeatures} and
1016     * {@link #hasSystemFeature}: The device includes a gyroscope.
1017     */
1018    @SdkConstant(SdkConstantType.FEATURE)
1019    public static final String FEATURE_SENSOR_GYROSCOPE = "android.hardware.sensor.gyroscope";
1020
1021    /**
1022     * Feature for {@link #getSystemAvailableFeatures} and
1023     * {@link #hasSystemFeature}: The device includes a light sensor.
1024     */
1025    @SdkConstant(SdkConstantType.FEATURE)
1026    public static final String FEATURE_SENSOR_LIGHT = "android.hardware.sensor.light";
1027
1028    /**
1029     * Feature for {@link #getSystemAvailableFeatures} and
1030     * {@link #hasSystemFeature}: The device includes a proximity sensor.
1031     */
1032    @SdkConstant(SdkConstantType.FEATURE)
1033    public static final String FEATURE_SENSOR_PROXIMITY = "android.hardware.sensor.proximity";
1034
1035    /**
1036     * Feature for {@link #getSystemAvailableFeatures} and
1037     * {@link #hasSystemFeature}: The device includes a hardware step counter.
1038     */
1039    @SdkConstant(SdkConstantType.FEATURE)
1040    public static final String FEATURE_SENSOR_STEP_COUNTER = "android.hardware.sensor.stepcounter";
1041
1042    /**
1043     * Feature for {@link #getSystemAvailableFeatures} and
1044     * {@link #hasSystemFeature}: The device includes a hardware step detector.
1045     */
1046    @SdkConstant(SdkConstantType.FEATURE)
1047    public static final String FEATURE_SENSOR_STEP_DETECTOR = "android.hardware.sensor.stepdetector";
1048
1049    /**
1050     * Feature for {@link #getSystemAvailableFeatures} and
1051     * {@link #hasSystemFeature}: The device has a telephony radio with data
1052     * communication support.
1053     */
1054    @SdkConstant(SdkConstantType.FEATURE)
1055    public static final String FEATURE_TELEPHONY = "android.hardware.telephony";
1056
1057    /**
1058     * Feature for {@link #getSystemAvailableFeatures} and
1059     * {@link #hasSystemFeature}: The device has a CDMA telephony stack.
1060     */
1061    @SdkConstant(SdkConstantType.FEATURE)
1062    public static final String FEATURE_TELEPHONY_CDMA = "android.hardware.telephony.cdma";
1063
1064    /**
1065     * Feature for {@link #getSystemAvailableFeatures} and
1066     * {@link #hasSystemFeature}: The device has a GSM telephony stack.
1067     */
1068    @SdkConstant(SdkConstantType.FEATURE)
1069    public static final String FEATURE_TELEPHONY_GSM = "android.hardware.telephony.gsm";
1070
1071    /**
1072     * Feature for {@link #getSystemAvailableFeatures} and
1073     * {@link #hasSystemFeature}: The device supports connecting to USB devices
1074     * as the USB host.
1075     */
1076    @SdkConstant(SdkConstantType.FEATURE)
1077    public static final String FEATURE_USB_HOST = "android.hardware.usb.host";
1078
1079    /**
1080     * Feature for {@link #getSystemAvailableFeatures} and
1081     * {@link #hasSystemFeature}: The device supports connecting to USB accessories.
1082     */
1083    @SdkConstant(SdkConstantType.FEATURE)
1084    public static final String FEATURE_USB_ACCESSORY = "android.hardware.usb.accessory";
1085
1086    /**
1087     * Feature for {@link #getSystemAvailableFeatures} and
1088     * {@link #hasSystemFeature}: The SIP API is enabled on the device.
1089     */
1090    @SdkConstant(SdkConstantType.FEATURE)
1091    public static final String FEATURE_SIP = "android.software.sip";
1092
1093    /**
1094     * Feature for {@link #getSystemAvailableFeatures} and
1095     * {@link #hasSystemFeature}: The device supports SIP-based VOIP.
1096     */
1097    @SdkConstant(SdkConstantType.FEATURE)
1098    public static final String FEATURE_SIP_VOIP = "android.software.sip.voip";
1099
1100    /**
1101     * Feature for {@link #getSystemAvailableFeatures} and
1102     * {@link #hasSystemFeature}: The device's display has a touch screen.
1103     */
1104    @SdkConstant(SdkConstantType.FEATURE)
1105    public static final String FEATURE_TOUCHSCREEN = "android.hardware.touchscreen";
1106
1107
1108    /**
1109     * Feature for {@link #getSystemAvailableFeatures} and
1110     * {@link #hasSystemFeature}: The device's touch screen supports
1111     * multitouch sufficient for basic two-finger gesture detection.
1112     */
1113    @SdkConstant(SdkConstantType.FEATURE)
1114    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH = "android.hardware.touchscreen.multitouch";
1115
1116    /**
1117     * Feature for {@link #getSystemAvailableFeatures} and
1118     * {@link #hasSystemFeature}: The device's touch screen is capable of
1119     * tracking two or more fingers fully independently.
1120     */
1121    @SdkConstant(SdkConstantType.FEATURE)
1122    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT = "android.hardware.touchscreen.multitouch.distinct";
1123
1124    /**
1125     * Feature for {@link #getSystemAvailableFeatures} and
1126     * {@link #hasSystemFeature}: The device's touch screen is capable of
1127     * tracking a full hand of fingers fully independently -- that is, 5 or
1128     * more simultaneous independent pointers.
1129     */
1130    @SdkConstant(SdkConstantType.FEATURE)
1131    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND = "android.hardware.touchscreen.multitouch.jazzhand";
1132
1133    /**
1134     * Feature for {@link #getSystemAvailableFeatures} and
1135     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1136     * does support touch emulation for basic events. For instance, the
1137     * device might use a mouse or remote control to drive a cursor, and
1138     * emulate basic touch pointer events like down, up, drag, etc. All
1139     * devices that support android.hardware.touchscreen or a sub-feature are
1140     * presumed to also support faketouch.
1141     */
1142    @SdkConstant(SdkConstantType.FEATURE)
1143    public static final String FEATURE_FAKETOUCH = "android.hardware.faketouch";
1144
1145    /**
1146     * Feature for {@link #getSystemAvailableFeatures} and
1147     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1148     * does support touch emulation for basic events that supports distinct
1149     * tracking of two or more fingers.  This is an extension of
1150     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1151     * that unlike a distinct multitouch screen as defined by
1152     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT}, these kinds of input
1153     * devices will not actually provide full two-finger gestures since the
1154     * input is being transformed to cursor movement on the screen.  That is,
1155     * single finger gestures will move a cursor; two-finger swipes will
1156     * result in single-finger touch events; other two-finger gestures will
1157     * result in the corresponding two-finger touch event.
1158     */
1159    @SdkConstant(SdkConstantType.FEATURE)
1160    public static final String FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT = "android.hardware.faketouch.multitouch.distinct";
1161
1162    /**
1163     * Feature for {@link #getSystemAvailableFeatures} and
1164     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1165     * does support touch emulation for basic events that supports tracking
1166     * a hand of fingers (5 or more fingers) fully independently.
1167     * This is an extension of
1168     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1169     * that unlike a multitouch screen as defined by
1170     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND}, not all two finger
1171     * gestures can be detected due to the limitations described for
1172     * {@link #FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT}.
1173     */
1174    @SdkConstant(SdkConstantType.FEATURE)
1175    public static final String FEATURE_FAKETOUCH_MULTITOUCH_JAZZHAND = "android.hardware.faketouch.multitouch.jazzhand";
1176
1177    /**
1178     * Feature for {@link #getSystemAvailableFeatures} and
1179     * {@link #hasSystemFeature}: The device supports portrait orientation
1180     * screens.  For backwards compatibility, you can assume that if neither
1181     * this nor {@link #FEATURE_SCREEN_LANDSCAPE} is set then the device supports
1182     * both portrait and landscape.
1183     */
1184    @SdkConstant(SdkConstantType.FEATURE)
1185    public static final String FEATURE_SCREEN_PORTRAIT = "android.hardware.screen.portrait";
1186
1187    /**
1188     * Feature for {@link #getSystemAvailableFeatures} and
1189     * {@link #hasSystemFeature}: The device supports landscape orientation
1190     * screens.  For backwards compatibility, you can assume that if neither
1191     * this nor {@link #FEATURE_SCREEN_PORTRAIT} is set then the device supports
1192     * both portrait and landscape.
1193     */
1194    @SdkConstant(SdkConstantType.FEATURE)
1195    public static final String FEATURE_SCREEN_LANDSCAPE = "android.hardware.screen.landscape";
1196
1197    /**
1198     * Feature for {@link #getSystemAvailableFeatures} and
1199     * {@link #hasSystemFeature}: The device supports live wallpapers.
1200     */
1201    @SdkConstant(SdkConstantType.FEATURE)
1202    public static final String FEATURE_LIVE_WALLPAPER = "android.software.live_wallpaper";
1203
1204    /**
1205     * Feature for {@link #getSystemAvailableFeatures} and
1206     * {@link #hasSystemFeature}: The device supports app widgets.
1207     */
1208    @SdkConstant(SdkConstantType.FEATURE)
1209    public static final String FEATURE_APP_WIDGETS = "android.software.app_widgets";
1210
1211    /**
1212     * Feature for {@link #getSystemAvailableFeatures} and
1213     * {@link #hasSystemFeature}: The device supports a home screen that is replaceable
1214     * by third party applications.
1215     */
1216    @SdkConstant(SdkConstantType.FEATURE)
1217    public static final String FEATURE_HOME_SCREEN = "android.software.home_screen";
1218
1219    /**
1220     * Feature for {@link #getSystemAvailableFeatures} and
1221     * {@link #hasSystemFeature}: The device supports adding new input methods implemented
1222     * with the {@link android.inputmethodservice.InputMethodService} API.
1223     */
1224    @SdkConstant(SdkConstantType.FEATURE)
1225    public static final String FEATURE_INPUT_METHODS = "android.software.input_methods";
1226
1227    /**
1228     * Feature for {@link #getSystemAvailableFeatures} and
1229     * {@link #hasSystemFeature}: The device supports device policy enforcement via device admins.
1230     */
1231    @SdkConstant(SdkConstantType.FEATURE)
1232    public static final String FEATURE_DEVICE_ADMIN = "android.software.device_admin";
1233
1234    /**
1235     * Feature for {@link #getSystemAvailableFeatures} and
1236     * {@link #hasSystemFeature}: The device supports leanback UI. This is
1237     * typically used in a living room television experience, but is a software
1238     * feature unlike {@link #FEATURE_TELEVISION}. Devices running with this
1239     * feature will use resources associated with the "television" UI mode.
1240     */
1241    @SdkConstant(SdkConstantType.FEATURE)
1242    public static final String FEATURE_LEANBACK = "android.software.leanback";
1243
1244    /**
1245     * Feature for {@link #getSystemAvailableFeatures} and
1246     * {@link #hasSystemFeature}: The device supports only leanback UI. Only
1247     * applications designed for this experience should be run, though this is
1248     * not enforced by the system.
1249     * @hide
1250     */
1251    @SdkConstant(SdkConstantType.FEATURE)
1252    public static final String FEATURE_LEANBACK_ONLY = "android.software.leanback_only";
1253
1254    /**
1255     * Feature for {@link #getSystemAvailableFeatures} and
1256     * {@link #hasSystemFeature}: The device supports WiFi (802.11) networking.
1257     */
1258    @SdkConstant(SdkConstantType.FEATURE)
1259    public static final String FEATURE_WIFI = "android.hardware.wifi";
1260
1261    /**
1262     * Feature for {@link #getSystemAvailableFeatures} and
1263     * {@link #hasSystemFeature}: The device supports Wi-Fi Direct networking.
1264     */
1265    @SdkConstant(SdkConstantType.FEATURE)
1266    public static final String FEATURE_WIFI_DIRECT = "android.hardware.wifi.direct";
1267
1268    /**
1269     * Feature for {@link #getSystemAvailableFeatures} and
1270     * {@link #hasSystemFeature}: This is a device dedicated to showing UI
1271     * on a television.  Television here is defined to be a typical living
1272     * room television experience: displayed on a big screen, where the user
1273     * is sitting far away from it, and the dominant form of input will be
1274     * something like a DPAD, not through touch or mouse.
1275     * @deprecated use {@link #FEATURE_LEANBACK} instead.
1276     */
1277    @SdkConstant(SdkConstantType.FEATURE)
1278    public static final String FEATURE_TELEVISION = "android.hardware.type.television";
1279
1280    /**
1281     * Feature for {@link #getSystemAvailableFeatures} and
1282     * {@link #hasSystemFeature}: This is a device dedicated to showing UI
1283     * on a watch. A watch here is defined to be a device worn on the body, perhaps on
1284     * the wrist. The user is very close when interacting with the device.
1285     */
1286    @SdkConstant(SdkConstantType.FEATURE)
1287    public static final String FEATURE_WATCH = "android.hardware.type.watch";
1288
1289    /**
1290     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}:
1291     * The device supports printing.
1292     */
1293    @SdkConstant(SdkConstantType.FEATURE)
1294    public static final String FEATURE_PRINTING = "android.software.print";
1295
1296    /**
1297     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}:
1298     * The device can perform backup and restore operations on installed applications.
1299     */
1300    @SdkConstant(SdkConstantType.FEATURE)
1301    public static final String FEATURE_BACKUP = "android.software.backup";
1302
1303    /**
1304     * Action to external storage service to clean out removed apps.
1305     * @hide
1306     */
1307    public static final String ACTION_CLEAN_EXTERNAL_STORAGE
1308            = "android.content.pm.CLEAN_EXTERNAL_STORAGE";
1309
1310    /**
1311     * Extra field name for the URI to a verification file. Passed to a package
1312     * verifier.
1313     *
1314     * @hide
1315     */
1316    public static final String EXTRA_VERIFICATION_URI = "android.content.pm.extra.VERIFICATION_URI";
1317
1318    /**
1319     * Extra field name for the ID of a package pending verification. Passed to
1320     * a package verifier and is used to call back to
1321     * {@link PackageManager#verifyPendingInstall(int, int)}
1322     */
1323    public static final String EXTRA_VERIFICATION_ID = "android.content.pm.extra.VERIFICATION_ID";
1324
1325    /**
1326     * Extra field name for the package identifier which is trying to install
1327     * the package.
1328     *
1329     * @hide
1330     */
1331    public static final String EXTRA_VERIFICATION_INSTALLER_PACKAGE
1332            = "android.content.pm.extra.VERIFICATION_INSTALLER_PACKAGE";
1333
1334    /**
1335     * Extra field name for the requested install flags for a package pending
1336     * verification. Passed to a package verifier.
1337     *
1338     * @hide
1339     */
1340    public static final String EXTRA_VERIFICATION_INSTALL_FLAGS
1341            = "android.content.pm.extra.VERIFICATION_INSTALL_FLAGS";
1342
1343    /**
1344     * Extra field name for the uid of who is requesting to install
1345     * the package.
1346     *
1347     * @hide
1348     */
1349    public static final String EXTRA_VERIFICATION_INSTALLER_UID
1350            = "android.content.pm.extra.VERIFICATION_INSTALLER_UID";
1351
1352    /**
1353     * Extra field name for the package name of a package pending verification.
1354     *
1355     * @hide
1356     */
1357    public static final String EXTRA_VERIFICATION_PACKAGE_NAME
1358            = "android.content.pm.extra.VERIFICATION_PACKAGE_NAME";
1359    /**
1360     * Extra field name for the result of a verification, either
1361     * {@link #VERIFICATION_ALLOW}, or {@link #VERIFICATION_REJECT}.
1362     * Passed to package verifiers after a package is verified.
1363     */
1364    public static final String EXTRA_VERIFICATION_RESULT
1365            = "android.content.pm.extra.VERIFICATION_RESULT";
1366
1367    /**
1368     * Extra field name for the version code of a package pending verification.
1369     *
1370     * @hide
1371     */
1372    public static final String EXTRA_VERIFICATION_VERSION_CODE
1373            = "android.content.pm.extra.VERIFICATION_VERSION_CODE";
1374
1375    /**
1376     * The action used to request that the user approve a permission request
1377     * from the application.
1378     *
1379     * @hide
1380     */
1381    public static final String ACTION_REQUEST_PERMISSION
1382            = "android.content.pm.action.REQUEST_PERMISSION";
1383
1384    /**
1385     * Extra field name for the list of permissions, which the user must approve.
1386     *
1387     * @hide
1388     */
1389    public static final String EXTRA_REQUEST_PERMISSION_PERMISSION_LIST
1390            = "android.content.pm.extra.PERMISSION_LIST";
1391
1392    /**
1393     * Retrieve overall information about an application package that is
1394     * installed on the system.
1395     * <p>
1396     * Throws {@link NameNotFoundException} if a package with the given name can
1397     * not be found on the system.
1398     *
1399     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1400     *            desired package.
1401     * @param flags Additional option flags. Use any combination of
1402     *            {@link #GET_ACTIVITIES}, {@link #GET_GIDS},
1403     *            {@link #GET_CONFIGURATIONS}, {@link #GET_INSTRUMENTATION},
1404     *            {@link #GET_PERMISSIONS}, {@link #GET_PROVIDERS},
1405     *            {@link #GET_RECEIVERS}, {@link #GET_SERVICES},
1406     *            {@link #GET_SIGNATURES}, {@link #GET_UNINSTALLED_PACKAGES} to
1407     *            modify the data returned.
1408     * @return Returns a PackageInfo object containing information about the
1409     *         package. If flag GET_UNINSTALLED_PACKAGES is set and if the
1410     *         package is not found in the list of installed applications, the
1411     *         package information is retrieved from the list of uninstalled
1412     *         applications (which includes installed applications as well as
1413     *         applications with data directory i.e. applications which had been
1414     *         deleted with {@code DONT_DELETE_DATA} flag set).
1415     * @see #GET_ACTIVITIES
1416     * @see #GET_GIDS
1417     * @see #GET_CONFIGURATIONS
1418     * @see #GET_INSTRUMENTATION
1419     * @see #GET_PERMISSIONS
1420     * @see #GET_PROVIDERS
1421     * @see #GET_RECEIVERS
1422     * @see #GET_SERVICES
1423     * @see #GET_SIGNATURES
1424     * @see #GET_UNINSTALLED_PACKAGES
1425     */
1426    public abstract PackageInfo getPackageInfo(String packageName, int flags)
1427            throws NameNotFoundException;
1428
1429    /**
1430     * Map from the current package names in use on the device to whatever
1431     * the current canonical name of that package is.
1432     * @param names Array of current names to be mapped.
1433     * @return Returns an array of the same size as the original, containing
1434     * the canonical name for each package.
1435     */
1436    public abstract String[] currentToCanonicalPackageNames(String[] names);
1437
1438    /**
1439     * Map from a packages canonical name to the current name in use on the device.
1440     * @param names Array of new names to be mapped.
1441     * @return Returns an array of the same size as the original, containing
1442     * the current name for each package.
1443     */
1444    public abstract String[] canonicalToCurrentPackageNames(String[] names);
1445
1446    /**
1447     * Return a "good" intent to launch a front-door activity in a package,
1448     * for use for example to implement an "open" button when browsing through
1449     * packages.  The current implementation will look first for a main
1450     * activity in the category {@link Intent#CATEGORY_INFO}, next for a
1451     * main activity in the category {@link Intent#CATEGORY_LAUNCHER}, or return
1452     * null if neither are found.
1453     *
1454     * <p>Throws {@link NameNotFoundException} if a package with the given
1455     * name cannot be found on the system.
1456     *
1457     * @param packageName The name of the package to inspect.
1458     *
1459     * @return Returns either a fully-qualified Intent that can be used to
1460     * launch the main activity in the package, or null if the package does
1461     * not contain such an activity.
1462     */
1463    public abstract Intent getLaunchIntentForPackage(String packageName);
1464
1465    /**
1466     * Return an array of all of the secondary group-ids that have been
1467     * assigned to a package.
1468     *
1469     * <p>Throws {@link NameNotFoundException} if a package with the given
1470     * name cannot be found on the system.
1471     *
1472     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1473     *                    desired package.
1474     *
1475     * @return Returns an int array of the assigned gids, or null if there
1476     * are none.
1477     */
1478    public abstract int[] getPackageGids(String packageName)
1479            throws NameNotFoundException;
1480
1481    /**
1482     * @hide Return the uid associated with the given package name for the
1483     * given user.
1484     *
1485     * <p>Throws {@link NameNotFoundException} if a package with the given
1486     * name can not be found on the system.
1487     *
1488     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1489     *                    desired package.
1490     * @param userHandle The user handle identifier to look up the package under.
1491     *
1492     * @return Returns an integer uid who owns the given package name.
1493     */
1494    public abstract int getPackageUid(String packageName, int userHandle)
1495            throws NameNotFoundException;
1496
1497    /**
1498     * Retrieve all of the information we know about a particular permission.
1499     *
1500     * <p>Throws {@link NameNotFoundException} if a permission with the given
1501     * name cannot be found on the system.
1502     *
1503     * @param name The fully qualified name (i.e. com.google.permission.LOGIN)
1504     *             of the permission you are interested in.
1505     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1506     * retrieve any meta-data associated with the permission.
1507     *
1508     * @return Returns a {@link PermissionInfo} containing information about the
1509     *         permission.
1510     */
1511    public abstract PermissionInfo getPermissionInfo(String name, int flags)
1512            throws NameNotFoundException;
1513
1514    /**
1515     * Query for all of the permissions associated with a particular group.
1516     *
1517     * <p>Throws {@link NameNotFoundException} if the given group does not
1518     * exist.
1519     *
1520     * @param group The fully qualified name (i.e. com.google.permission.LOGIN)
1521     *             of the permission group you are interested in.  Use null to
1522     *             find all of the permissions not associated with a group.
1523     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1524     * retrieve any meta-data associated with the permissions.
1525     *
1526     * @return Returns a list of {@link PermissionInfo} containing information
1527     * about all of the permissions in the given group.
1528     */
1529    public abstract List<PermissionInfo> queryPermissionsByGroup(String group,
1530            int flags) throws NameNotFoundException;
1531
1532    /**
1533     * Retrieve all of the information we know about a particular group of
1534     * permissions.
1535     *
1536     * <p>Throws {@link NameNotFoundException} if a permission group with the given
1537     * name cannot be found on the system.
1538     *
1539     * @param name The fully qualified name (i.e. com.google.permission_group.APPS)
1540     *             of the permission you are interested in.
1541     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1542     * retrieve any meta-data associated with the permission group.
1543     *
1544     * @return Returns a {@link PermissionGroupInfo} containing information
1545     * about the permission.
1546     */
1547    public abstract PermissionGroupInfo getPermissionGroupInfo(String name,
1548            int flags) throws NameNotFoundException;
1549
1550    /**
1551     * Retrieve all of the known permission groups in the system.
1552     *
1553     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1554     * retrieve any meta-data associated with the permission group.
1555     *
1556     * @return Returns a list of {@link PermissionGroupInfo} containing
1557     * information about all of the known permission groups.
1558     */
1559    public abstract List<PermissionGroupInfo> getAllPermissionGroups(int flags);
1560
1561    /**
1562     * Retrieve all of the information we know about a particular
1563     * package/application.
1564     *
1565     * <p>Throws {@link NameNotFoundException} if an application with the given
1566     * package name cannot be found on the system.
1567     *
1568     * @param packageName The full name (i.e. com.google.apps.contacts) of an
1569     *                    application.
1570     * @param flags Additional option flags. Use any combination of
1571     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1572     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1573     *
1574     * @return  {@link ApplicationInfo} Returns ApplicationInfo object containing
1575     *         information about the package.
1576     *         If flag GET_UNINSTALLED_PACKAGES is set and  if the package is not
1577     *         found in the list of installed applications,
1578     *         the application information is retrieved from the
1579     *         list of uninstalled applications(which includes
1580     *         installed applications as well as applications
1581     *         with data directory ie applications which had been
1582     *         deleted with {@code DONT_DELETE_DATA} flag set).
1583     *
1584     * @see #GET_META_DATA
1585     * @see #GET_SHARED_LIBRARY_FILES
1586     * @see #GET_UNINSTALLED_PACKAGES
1587     */
1588    public abstract ApplicationInfo getApplicationInfo(String packageName,
1589            int flags) throws NameNotFoundException;
1590
1591    /**
1592     * Retrieve all of the information we know about a particular activity
1593     * class.
1594     *
1595     * <p>Throws {@link NameNotFoundException} if an activity with the given
1596     * class name cannot be found on the system.
1597     *
1598     * @param component The full component name (i.e.
1599     * com.google.apps.contacts/com.google.apps.contacts.ContactsList) of an Activity
1600     * class.
1601     * @param flags Additional option flags. Use any combination of
1602     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1603     * to modify the data (in ApplicationInfo) returned.
1604     *
1605     * @return {@link ActivityInfo} containing information about the activity.
1606     *
1607     * @see #GET_INTENT_FILTERS
1608     * @see #GET_META_DATA
1609     * @see #GET_SHARED_LIBRARY_FILES
1610     */
1611    public abstract ActivityInfo getActivityInfo(ComponentName component,
1612            int flags) throws NameNotFoundException;
1613
1614    /**
1615     * Retrieve all of the information we know about a particular receiver
1616     * class.
1617     *
1618     * <p>Throws {@link NameNotFoundException} if a receiver with the given
1619     * class name cannot be found on the system.
1620     *
1621     * @param component The full component name (i.e.
1622     * com.google.apps.calendar/com.google.apps.calendar.CalendarAlarm) of a Receiver
1623     * class.
1624     * @param flags Additional option flags.  Use any combination of
1625     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1626     * to modify the data returned.
1627     *
1628     * @return {@link ActivityInfo} containing information about the receiver.
1629     *
1630     * @see #GET_INTENT_FILTERS
1631     * @see #GET_META_DATA
1632     * @see #GET_SHARED_LIBRARY_FILES
1633     */
1634    public abstract ActivityInfo getReceiverInfo(ComponentName component,
1635            int flags) throws NameNotFoundException;
1636
1637    /**
1638     * Retrieve all of the information we know about a particular service
1639     * class.
1640     *
1641     * <p>Throws {@link NameNotFoundException} if a service with the given
1642     * class name cannot be found on the system.
1643     *
1644     * @param component The full component name (i.e.
1645     * com.google.apps.media/com.google.apps.media.BackgroundPlayback) of a Service
1646     * class.
1647     * @param flags Additional option flags.  Use any combination of
1648     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1649     * to modify the data returned.
1650     *
1651     * @return ServiceInfo containing information about the service.
1652     *
1653     * @see #GET_META_DATA
1654     * @see #GET_SHARED_LIBRARY_FILES
1655     */
1656    public abstract ServiceInfo getServiceInfo(ComponentName component,
1657            int flags) throws NameNotFoundException;
1658
1659    /**
1660     * Retrieve all of the information we know about a particular content
1661     * provider class.
1662     *
1663     * <p>Throws {@link NameNotFoundException} if a provider with the given
1664     * class name cannot be found on the system.
1665     *
1666     * @param component The full component name (i.e.
1667     * com.google.providers.media/com.google.providers.media.MediaProvider) of a
1668     * ContentProvider class.
1669     * @param flags Additional option flags.  Use any combination of
1670     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1671     * to modify the data returned.
1672     *
1673     * @return ProviderInfo containing information about the service.
1674     *
1675     * @see #GET_META_DATA
1676     * @see #GET_SHARED_LIBRARY_FILES
1677     */
1678    public abstract ProviderInfo getProviderInfo(ComponentName component,
1679            int flags) throws NameNotFoundException;
1680
1681    /**
1682     * Return a List of all packages that are installed
1683     * on the device.
1684     *
1685     * @param flags Additional option flags. Use any combination of
1686     * {@link #GET_ACTIVITIES},
1687     * {@link #GET_GIDS},
1688     * {@link #GET_CONFIGURATIONS},
1689     * {@link #GET_INSTRUMENTATION},
1690     * {@link #GET_PERMISSIONS},
1691     * {@link #GET_PROVIDERS},
1692     * {@link #GET_RECEIVERS},
1693     * {@link #GET_SERVICES},
1694     * {@link #GET_SIGNATURES},
1695     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1696     *
1697     * @return A List of PackageInfo objects, one for each package that is
1698     *         installed on the device.  In the unlikely case of there being no
1699     *         installed packages, an empty list is returned.
1700     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1701     *         applications including those deleted with {@code DONT_DELETE_DATA}
1702     *         (partially installed apps with data directory) will be returned.
1703     *
1704     * @see #GET_ACTIVITIES
1705     * @see #GET_GIDS
1706     * @see #GET_CONFIGURATIONS
1707     * @see #GET_INSTRUMENTATION
1708     * @see #GET_PERMISSIONS
1709     * @see #GET_PROVIDERS
1710     * @see #GET_RECEIVERS
1711     * @see #GET_SERVICES
1712     * @see #GET_SIGNATURES
1713     * @see #GET_UNINSTALLED_PACKAGES
1714     */
1715    public abstract List<PackageInfo> getInstalledPackages(int flags);
1716
1717    /**
1718     * Return a List of all installed packages that are currently
1719     * holding any of the given permissions.
1720     *
1721     * @param flags Additional option flags. Use any combination of
1722     * {@link #GET_ACTIVITIES},
1723     * {@link #GET_GIDS},
1724     * {@link #GET_CONFIGURATIONS},
1725     * {@link #GET_INSTRUMENTATION},
1726     * {@link #GET_PERMISSIONS},
1727     * {@link #GET_PROVIDERS},
1728     * {@link #GET_RECEIVERS},
1729     * {@link #GET_SERVICES},
1730     * {@link #GET_SIGNATURES},
1731     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1732     *
1733     * @return Returns a List of PackageInfo objects, one for each installed
1734     * application that is holding any of the permissions that were provided.
1735     *
1736     * @see #GET_ACTIVITIES
1737     * @see #GET_GIDS
1738     * @see #GET_CONFIGURATIONS
1739     * @see #GET_INSTRUMENTATION
1740     * @see #GET_PERMISSIONS
1741     * @see #GET_PROVIDERS
1742     * @see #GET_RECEIVERS
1743     * @see #GET_SERVICES
1744     * @see #GET_SIGNATURES
1745     * @see #GET_UNINSTALLED_PACKAGES
1746     */
1747    public abstract List<PackageInfo> getPackagesHoldingPermissions(
1748            String[] permissions, int flags);
1749
1750    /**
1751     * Return a List of all packages that are installed on the device, for a specific user.
1752     * Requesting a list of installed packages for another user
1753     * will require the permission INTERACT_ACROSS_USERS_FULL.
1754     * @param flags Additional option flags. Use any combination of
1755     * {@link #GET_ACTIVITIES},
1756     * {@link #GET_GIDS},
1757     * {@link #GET_CONFIGURATIONS},
1758     * {@link #GET_INSTRUMENTATION},
1759     * {@link #GET_PERMISSIONS},
1760     * {@link #GET_PROVIDERS},
1761     * {@link #GET_RECEIVERS},
1762     * {@link #GET_SERVICES},
1763     * {@link #GET_SIGNATURES},
1764     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1765     * @param userId The user for whom the installed packages are to be listed
1766     *
1767     * @return A List of PackageInfo objects, one for each package that is
1768     *         installed on the device.  In the unlikely case of there being no
1769     *         installed packages, an empty list is returned.
1770     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1771     *         applications including those deleted with {@code DONT_DELETE_DATA}
1772     *         (partially installed apps with data directory) will be returned.
1773     *
1774     * @see #GET_ACTIVITIES
1775     * @see #GET_GIDS
1776     * @see #GET_CONFIGURATIONS
1777     * @see #GET_INSTRUMENTATION
1778     * @see #GET_PERMISSIONS
1779     * @see #GET_PROVIDERS
1780     * @see #GET_RECEIVERS
1781     * @see #GET_SERVICES
1782     * @see #GET_SIGNATURES
1783     * @see #GET_UNINSTALLED_PACKAGES
1784     *
1785     * @hide
1786     */
1787    public abstract List<PackageInfo> getInstalledPackages(int flags, int userId);
1788
1789    /**
1790     * Check whether a particular package has been granted a particular
1791     * permission.
1792     *
1793     * @param permName The name of the permission you are checking for,
1794     * @param pkgName The name of the package you are checking against.
1795     *
1796     * @return If the package has the permission, PERMISSION_GRANTED is
1797     * returned.  If it does not have the permission, PERMISSION_DENIED
1798     * is returned.
1799     *
1800     * @see #PERMISSION_GRANTED
1801     * @see #PERMISSION_DENIED
1802     */
1803    public abstract int checkPermission(String permName, String pkgName);
1804
1805    /**
1806     * Add a new dynamic permission to the system.  For this to work, your
1807     * package must have defined a permission tree through the
1808     * {@link android.R.styleable#AndroidManifestPermissionTree
1809     * &lt;permission-tree&gt;} tag in its manifest.  A package can only add
1810     * permissions to trees that were defined by either its own package or
1811     * another with the same user id; a permission is in a tree if it
1812     * matches the name of the permission tree + ".": for example,
1813     * "com.foo.bar" is a member of the permission tree "com.foo".
1814     *
1815     * <p>It is good to make your permission tree name descriptive, because you
1816     * are taking possession of that entire set of permission names.  Thus, it
1817     * must be under a domain you control, with a suffix that will not match
1818     * any normal permissions that may be declared in any applications that
1819     * are part of that domain.
1820     *
1821     * <p>New permissions must be added before
1822     * any .apks are installed that use those permissions.  Permissions you
1823     * add through this method are remembered across reboots of the device.
1824     * If the given permission already exists, the info you supply here
1825     * will be used to update it.
1826     *
1827     * @param info Description of the permission to be added.
1828     *
1829     * @return Returns true if a new permission was created, false if an
1830     * existing one was updated.
1831     *
1832     * @throws SecurityException if you are not allowed to add the
1833     * given permission name.
1834     *
1835     * @see #removePermission(String)
1836     */
1837    public abstract boolean addPermission(PermissionInfo info);
1838
1839    /**
1840     * Like {@link #addPermission(PermissionInfo)} but asynchronously
1841     * persists the package manager state after returning from the call,
1842     * allowing it to return quicker and batch a series of adds at the
1843     * expense of no guarantee the added permission will be retained if
1844     * the device is rebooted before it is written.
1845     */
1846    public abstract boolean addPermissionAsync(PermissionInfo info);
1847
1848    /**
1849     * Removes a permission that was previously added with
1850     * {@link #addPermission(PermissionInfo)}.  The same ownership rules apply
1851     * -- you are only allowed to remove permissions that you are allowed
1852     * to add.
1853     *
1854     * @param name The name of the permission to remove.
1855     *
1856     * @throws SecurityException if you are not allowed to remove the
1857     * given permission name.
1858     *
1859     * @see #addPermission(PermissionInfo)
1860     */
1861    public abstract void removePermission(String name);
1862
1863    /**
1864     * Returns an {@link Intent} suitable for passing to {@code startActivityForResult}
1865     * which prompts the user to grant {@code permissions} to this application.
1866     * @hide
1867     *
1868     * @throws NullPointerException if {@code permissions} is {@code null}.
1869     * @throws IllegalArgumentException if {@code permissions} contains {@code null}.
1870     */
1871    public Intent buildPermissionRequestIntent(String... permissions) {
1872        if (permissions == null) {
1873            throw new NullPointerException("permissions cannot be null");
1874        }
1875        for (String permission : permissions) {
1876            if (permission == null) {
1877                throw new IllegalArgumentException("permissions cannot contain null");
1878            }
1879        }
1880
1881        Intent i = new Intent(ACTION_REQUEST_PERMISSION);
1882        i.putExtra(EXTRA_REQUEST_PERMISSION_PERMISSION_LIST, permissions);
1883        i.setPackage("com.android.packageinstaller");
1884        return i;
1885    }
1886
1887    /**
1888     * Grant a permission to an application which the application does not
1889     * already have.  The permission must have been requested by the application,
1890     * but as an optional permission.  If the application is not allowed to
1891     * hold the permission, a SecurityException is thrown.
1892     * @hide
1893     *
1894     * @param packageName The name of the package that the permission will be
1895     * granted to.
1896     * @param permissionName The name of the permission.
1897     */
1898    public abstract void grantPermission(String packageName, String permissionName);
1899
1900    /**
1901     * Revoke a permission that was previously granted by {@link #grantPermission}.
1902     * @hide
1903     *
1904     * @param packageName The name of the package that the permission will be
1905     * granted to.
1906     * @param permissionName The name of the permission.
1907     */
1908    public abstract void revokePermission(String packageName, String permissionName);
1909
1910    /**
1911     * Compare the signatures of two packages to determine if the same
1912     * signature appears in both of them.  If they do contain the same
1913     * signature, then they are allowed special privileges when working
1914     * with each other: they can share the same user-id, run instrumentation
1915     * against each other, etc.
1916     *
1917     * @param pkg1 First package name whose signature will be compared.
1918     * @param pkg2 Second package name whose signature will be compared.
1919     *
1920     * @return Returns an integer indicating whether all signatures on the
1921     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
1922     * all signatures match or < 0 if there is not a match ({@link
1923     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
1924     *
1925     * @see #checkSignatures(int, int)
1926     * @see #SIGNATURE_MATCH
1927     * @see #SIGNATURE_NO_MATCH
1928     * @see #SIGNATURE_UNKNOWN_PACKAGE
1929     */
1930    public abstract int checkSignatures(String pkg1, String pkg2);
1931
1932    /**
1933     * Like {@link #checkSignatures(String, String)}, but takes UIDs of
1934     * the two packages to be checked.  This can be useful, for example,
1935     * when doing the check in an IPC, where the UID is the only identity
1936     * available.  It is functionally identical to determining the package
1937     * associated with the UIDs and checking their signatures.
1938     *
1939     * @param uid1 First UID whose signature will be compared.
1940     * @param uid2 Second UID whose signature will be compared.
1941     *
1942     * @return Returns an integer indicating whether all signatures on the
1943     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
1944     * all signatures match or < 0 if there is not a match ({@link
1945     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
1946     *
1947     * @see #checkSignatures(String, String)
1948     * @see #SIGNATURE_MATCH
1949     * @see #SIGNATURE_NO_MATCH
1950     * @see #SIGNATURE_UNKNOWN_PACKAGE
1951     */
1952    public abstract int checkSignatures(int uid1, int uid2);
1953
1954    /**
1955     * Retrieve the names of all packages that are associated with a particular
1956     * user id.  In most cases, this will be a single package name, the package
1957     * that has been assigned that user id.  Where there are multiple packages
1958     * sharing the same user id through the "sharedUserId" mechanism, all
1959     * packages with that id will be returned.
1960     *
1961     * @param uid The user id for which you would like to retrieve the
1962     * associated packages.
1963     *
1964     * @return Returns an array of one or more packages assigned to the user
1965     * id, or null if there are no known packages with the given id.
1966     */
1967    public abstract String[] getPackagesForUid(int uid);
1968
1969    /**
1970     * Retrieve the official name associated with a user id.  This name is
1971     * guaranteed to never change, though it is possibly for the underlying
1972     * user id to be changed.  That is, if you are storing information about
1973     * user ids in persistent storage, you should use the string returned
1974     * by this function instead of the raw user-id.
1975     *
1976     * @param uid The user id for which you would like to retrieve a name.
1977     * @return Returns a unique name for the given user id, or null if the
1978     * user id is not currently assigned.
1979     */
1980    public abstract String getNameForUid(int uid);
1981
1982    /**
1983     * Return the user id associated with a shared user name. Multiple
1984     * applications can specify a shared user name in their manifest and thus
1985     * end up using a common uid. This might be used for new applications
1986     * that use an existing shared user name and need to know the uid of the
1987     * shared user.
1988     *
1989     * @param sharedUserName The shared user name whose uid is to be retrieved.
1990     * @return Returns the uid associated with the shared user, or  NameNotFoundException
1991     * if the shared user name is not being used by any installed packages
1992     * @hide
1993     */
1994    public abstract int getUidForSharedUser(String sharedUserName)
1995            throws NameNotFoundException;
1996
1997    /**
1998     * Return a List of all application packages that are installed on the
1999     * device. If flag GET_UNINSTALLED_PACKAGES has been set, a list of all
2000     * applications including those deleted with {@code DONT_DELETE_DATA} (partially
2001     * installed apps with data directory) will be returned.
2002     *
2003     * @param flags Additional option flags. Use any combination of
2004     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
2005     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
2006     *
2007     * @return Returns a List of ApplicationInfo objects, one for each application that
2008     *         is installed on the device.  In the unlikely case of there being
2009     *         no installed applications, an empty list is returned.
2010     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
2011     *         applications including those deleted with {@code DONT_DELETE_DATA}
2012     *         (partially installed apps with data directory) will be returned.
2013     *
2014     * @see #GET_META_DATA
2015     * @see #GET_SHARED_LIBRARY_FILES
2016     * @see #GET_UNINSTALLED_PACKAGES
2017     */
2018    public abstract List<ApplicationInfo> getInstalledApplications(int flags);
2019
2020    /**
2021     * Get a list of shared libraries that are available on the
2022     * system.
2023     *
2024     * @return An array of shared library names that are
2025     * available on the system, or null if none are installed.
2026     *
2027     */
2028    public abstract String[] getSystemSharedLibraryNames();
2029
2030    /**
2031     * Get a list of features that are available on the
2032     * system.
2033     *
2034     * @return An array of FeatureInfo classes describing the features
2035     * that are available on the system, or null if there are none(!!).
2036     */
2037    public abstract FeatureInfo[] getSystemAvailableFeatures();
2038
2039    /**
2040     * Check whether the given feature name is one of the available
2041     * features as returned by {@link #getSystemAvailableFeatures()}.
2042     *
2043     * @return Returns true if the devices supports the feature, else
2044     * false.
2045     */
2046    public abstract boolean hasSystemFeature(String name);
2047
2048    /**
2049     * Determine the best action to perform for a given Intent.  This is how
2050     * {@link Intent#resolveActivity} finds an activity if a class has not
2051     * been explicitly specified.
2052     *
2053     * <p><em>Note:</em> if using an implicit Intent (without an explicit ComponentName
2054     * specified), be sure to consider whether to set the {@link #MATCH_DEFAULT_ONLY}
2055     * only flag.  You need to do so to resolve the activity in the same way
2056     * that {@link android.content.Context#startActivity(Intent)} and
2057     * {@link android.content.Intent#resolveActivity(PackageManager)
2058     * Intent.resolveActivity(PackageManager)} do.</p>
2059     *
2060     * @param intent An intent containing all of the desired specification
2061     *               (action, data, type, category, and/or component).
2062     * @param flags Additional option flags.  The most important is
2063     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2064     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2065     *
2066     * @return Returns a ResolveInfo containing the final activity intent that
2067     *         was determined to be the best action.  Returns null if no
2068     *         matching activity was found. If multiple matching activities are
2069     *         found and there is no default set, returns a ResolveInfo
2070     *         containing something else, such as the activity resolver.
2071     *
2072     * @see #MATCH_DEFAULT_ONLY
2073     * @see #GET_INTENT_FILTERS
2074     * @see #GET_RESOLVED_FILTER
2075     */
2076    public abstract ResolveInfo resolveActivity(Intent intent, int flags);
2077
2078    /**
2079     * Determine the best action to perform for a given Intent for a given user. This
2080     * is how {@link Intent#resolveActivity} finds an activity if a class has not
2081     * been explicitly specified.
2082     *
2083     * <p><em>Note:</em> if using an implicit Intent (without an explicit ComponentName
2084     * specified), be sure to consider whether to set the {@link #MATCH_DEFAULT_ONLY}
2085     * only flag.  You need to do so to resolve the activity in the same way
2086     * that {@link android.content.Context#startActivity(Intent)} and
2087     * {@link android.content.Intent#resolveActivity(PackageManager)
2088     * Intent.resolveActivity(PackageManager)} do.</p>
2089     *
2090     * @param intent An intent containing all of the desired specification
2091     *               (action, data, type, category, and/or component).
2092     * @param flags Additional option flags.  The most important is
2093     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2094     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2095     * @param userId The user id.
2096     *
2097     * @return Returns a ResolveInfo containing the final activity intent that
2098     *         was determined to be the best action.  Returns null if no
2099     *         matching activity was found. If multiple matching activities are
2100     *         found and there is no default set, returns a ResolveInfo
2101     *         containing something else, such as the activity resolver.
2102     *
2103     * @see #MATCH_DEFAULT_ONLY
2104     * @see #GET_INTENT_FILTERS
2105     * @see #GET_RESOLVED_FILTER
2106     *
2107     * @hide
2108     */
2109    public abstract ResolveInfo resolveActivityAsUser(Intent intent, int flags, int userId);
2110
2111    /**
2112     * Retrieve all activities that can be performed for the given intent.
2113     *
2114     * @param intent The desired intent as per resolveActivity().
2115     * @param flags Additional option flags.  The most important is
2116     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2117     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2118     *
2119     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2120     *         Activity. These are ordered from best to worst match -- that
2121     *         is, the first item in the list is what is returned by
2122     *         {@link #resolveActivity}.  If there are no matching activities, an empty
2123     *         list is returned.
2124     *
2125     * @see #MATCH_DEFAULT_ONLY
2126     * @see #GET_INTENT_FILTERS
2127     * @see #GET_RESOLVED_FILTER
2128     */
2129    public abstract List<ResolveInfo> queryIntentActivities(Intent intent,
2130            int flags);
2131
2132    /**
2133     * Retrieve all activities that can be performed for the given intent, for a specific user.
2134     *
2135     * @param intent The desired intent as per resolveActivity().
2136     * @param flags Additional option flags.  The most important is
2137     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2138     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2139     *
2140     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2141     *         Activity. These are ordered from best to worst match -- that
2142     *         is, the first item in the list is what is returned by
2143     *         {@link #resolveActivity}.  If there are no matching activities, an empty
2144     *         list is returned.
2145     *
2146     * @see #MATCH_DEFAULT_ONLY
2147     * @see #GET_INTENT_FILTERS
2148     * @see #GET_RESOLVED_FILTER
2149     * @hide
2150     */
2151    public abstract List<ResolveInfo> queryIntentActivitiesAsUser(Intent intent,
2152            int flags, int userId);
2153
2154
2155    /**
2156     * Retrieve a set of activities that should be presented to the user as
2157     * similar options.  This is like {@link #queryIntentActivities}, except it
2158     * also allows you to supply a list of more explicit Intents that you would
2159     * like to resolve to particular options, and takes care of returning the
2160     * final ResolveInfo list in a reasonable order, with no duplicates, based
2161     * on those inputs.
2162     *
2163     * @param caller The class name of the activity that is making the
2164     *               request.  This activity will never appear in the output
2165     *               list.  Can be null.
2166     * @param specifics An array of Intents that should be resolved to the
2167     *                  first specific results.  Can be null.
2168     * @param intent The desired intent as per resolveActivity().
2169     * @param flags Additional option flags.  The most important is
2170     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2171     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2172     *
2173     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2174     *         Activity. These are ordered first by all of the intents resolved
2175     *         in <var>specifics</var> and then any additional activities that
2176     *         can handle <var>intent</var> but did not get included by one of
2177     *         the <var>specifics</var> intents.  If there are no matching
2178     *         activities, an empty list is returned.
2179     *
2180     * @see #MATCH_DEFAULT_ONLY
2181     * @see #GET_INTENT_FILTERS
2182     * @see #GET_RESOLVED_FILTER
2183     */
2184    public abstract List<ResolveInfo> queryIntentActivityOptions(
2185            ComponentName caller, Intent[] specifics, Intent intent, int flags);
2186
2187    /**
2188     * Retrieve all receivers that can handle a broadcast of the given intent.
2189     *
2190     * @param intent The desired intent as per resolveActivity().
2191     * @param flags Additional option flags.
2192     *
2193     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2194     *         Receiver. These are ordered from first to last in priority.  If
2195     *         there are no matching receivers, an empty list is returned.
2196     *
2197     * @see #MATCH_DEFAULT_ONLY
2198     * @see #GET_INTENT_FILTERS
2199     * @see #GET_RESOLVED_FILTER
2200     */
2201    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
2202            int flags);
2203
2204    /**
2205     * Retrieve all receivers that can handle a broadcast of the given intent, for a specific
2206     * user.
2207     *
2208     * @param intent The desired intent as per resolveActivity().
2209     * @param flags Additional option flags.
2210     * @param userId The userId of the user being queried.
2211     *
2212     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2213     *         Receiver. These are ordered from first to last in priority.  If
2214     *         there are no matching receivers, an empty list is returned.
2215     *
2216     * @see #MATCH_DEFAULT_ONLY
2217     * @see #GET_INTENT_FILTERS
2218     * @see #GET_RESOLVED_FILTER
2219     * @hide
2220     */
2221    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
2222            int flags, int userId);
2223
2224    /**
2225     * Determine the best service to handle for a given Intent.
2226     *
2227     * @param intent An intent containing all of the desired specification
2228     *               (action, data, type, category, and/or component).
2229     * @param flags Additional option flags.
2230     *
2231     * @return Returns a ResolveInfo containing the final service intent that
2232     *         was determined to be the best action.  Returns null if no
2233     *         matching service was found.
2234     *
2235     * @see #GET_INTENT_FILTERS
2236     * @see #GET_RESOLVED_FILTER
2237     */
2238    public abstract ResolveInfo resolveService(Intent intent, int flags);
2239
2240    /**
2241     * Retrieve all services that can match the given intent.
2242     *
2243     * @param intent The desired intent as per resolveService().
2244     * @param flags Additional option flags.
2245     *
2246     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2247     *         ServiceInfo. These are ordered from best to worst match -- that
2248     *         is, the first item in the list is what is returned by
2249     *         resolveService().  If there are no matching services, an empty
2250     *         list is returned.
2251     *
2252     * @see #GET_INTENT_FILTERS
2253     * @see #GET_RESOLVED_FILTER
2254     */
2255    public abstract List<ResolveInfo> queryIntentServices(Intent intent,
2256            int flags);
2257
2258    /**
2259     * Retrieve all services that can match the given intent for a given user.
2260     *
2261     * @param intent The desired intent as per resolveService().
2262     * @param flags Additional option flags.
2263     * @param userId The user id.
2264     *
2265     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2266     *         ServiceInfo. These are ordered from best to worst match -- that
2267     *         is, the first item in the list is what is returned by
2268     *         resolveService().  If there are no matching services, an empty
2269     *         list is returned.
2270     *
2271     * @see #GET_INTENT_FILTERS
2272     * @see #GET_RESOLVED_FILTER
2273     *
2274     * @hide
2275     */
2276    public abstract List<ResolveInfo> queryIntentServicesAsUser(Intent intent,
2277            int flags, int userId);
2278
2279    /** {@hide} */
2280    public abstract List<ResolveInfo> queryIntentContentProvidersAsUser(
2281            Intent intent, int flags, int userId);
2282
2283    /**
2284     * Retrieve all providers that can match the given intent.
2285     *
2286     * @param intent An intent containing all of the desired specification
2287     *            (action, data, type, category, and/or component).
2288     * @param flags Additional option flags.
2289     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2290     *         ProviderInfo. These are ordered from best to worst match. If
2291     *         there are no matching providers, an empty list is returned.
2292     * @see #GET_INTENT_FILTERS
2293     * @see #GET_RESOLVED_FILTER
2294     */
2295    public abstract List<ResolveInfo> queryIntentContentProviders(Intent intent, int flags);
2296
2297    /**
2298     * Find a single content provider by its base path name.
2299     *
2300     * @param name The name of the provider to find.
2301     * @param flags Additional option flags.  Currently should always be 0.
2302     *
2303     * @return ContentProviderInfo Information about the provider, if found,
2304     *         else null.
2305     */
2306    public abstract ProviderInfo resolveContentProvider(String name,
2307            int flags);
2308
2309    /**
2310     * Retrieve content provider information.
2311     *
2312     * <p><em>Note: unlike most other methods, an empty result set is indicated
2313     * by a null return instead of an empty list.</em>
2314     *
2315     * @param processName If non-null, limits the returned providers to only
2316     *                    those that are hosted by the given process.  If null,
2317     *                    all content providers are returned.
2318     * @param uid If <var>processName</var> is non-null, this is the required
2319     *        uid owning the requested content providers.
2320     * @param flags Additional option flags.  Currently should always be 0.
2321     *
2322     * @return A List&lt;ContentProviderInfo&gt; containing one entry for each
2323     *         content provider either patching <var>processName</var> or, if
2324     *         <var>processName</var> is null, all known content providers.
2325     *         <em>If there are no matching providers, null is returned.</em>
2326     */
2327    public abstract List<ProviderInfo> queryContentProviders(
2328            String processName, int uid, int flags);
2329
2330    /**
2331     * Retrieve all of the information we know about a particular
2332     * instrumentation class.
2333     *
2334     * <p>Throws {@link NameNotFoundException} if instrumentation with the
2335     * given class name cannot be found on the system.
2336     *
2337     * @param className The full name (i.e.
2338     *                  com.google.apps.contacts.InstrumentList) of an
2339     *                  Instrumentation class.
2340     * @param flags Additional option flags.  Currently should always be 0.
2341     *
2342     * @return InstrumentationInfo containing information about the
2343     *         instrumentation.
2344     */
2345    public abstract InstrumentationInfo getInstrumentationInfo(
2346            ComponentName className, int flags) throws NameNotFoundException;
2347
2348    /**
2349     * Retrieve information about available instrumentation code.  May be used
2350     * to retrieve either all instrumentation code, or only the code targeting
2351     * a particular package.
2352     *
2353     * @param targetPackage If null, all instrumentation is returned; only the
2354     *                      instrumentation targeting this package name is
2355     *                      returned.
2356     * @param flags Additional option flags.  Currently should always be 0.
2357     *
2358     * @return A List&lt;InstrumentationInfo&gt; containing one entry for each
2359     *         matching available Instrumentation.  Returns an empty list if
2360     *         there is no instrumentation available for the given package.
2361     */
2362    public abstract List<InstrumentationInfo> queryInstrumentation(
2363            String targetPackage, int flags);
2364
2365    /**
2366     * Retrieve an image from a package.  This is a low-level API used by
2367     * the various package manager info structures (such as
2368     * {@link ComponentInfo} to implement retrieval of their associated
2369     * icon.
2370     *
2371     * @param packageName The name of the package that this icon is coming from.
2372     * Cannot be null.
2373     * @param resid The resource identifier of the desired image.  Cannot be 0.
2374     * @param appInfo Overall information about <var>packageName</var>.  This
2375     * may be null, in which case the application information will be retrieved
2376     * for you if needed; if you already have this information around, it can
2377     * be much more efficient to supply it here.
2378     *
2379     * @return Returns a Drawable holding the requested image.  Returns null if
2380     * an image could not be found for any reason.
2381     */
2382    public abstract Drawable getDrawable(String packageName, int resid,
2383            ApplicationInfo appInfo);
2384
2385    /**
2386     * Retrieve the icon associated with an activity.  Given the full name of
2387     * an activity, retrieves the information about it and calls
2388     * {@link ComponentInfo#loadIcon ComponentInfo.loadIcon()} to return its icon.
2389     * If the activity cannot be found, NameNotFoundException is thrown.
2390     *
2391     * @param activityName Name of the activity whose icon is to be retrieved.
2392     *
2393     * @return Returns the image of the icon, or the default activity icon if
2394     * it could not be found.  Does not return null.
2395     * @throws NameNotFoundException Thrown if the resources for the given
2396     * activity could not be loaded.
2397     *
2398     * @see #getActivityIcon(Intent)
2399     */
2400    public abstract Drawable getActivityIcon(ComponentName activityName)
2401            throws NameNotFoundException;
2402
2403    /**
2404     * Retrieve the icon associated with an Intent.  If intent.getClassName() is
2405     * set, this simply returns the result of
2406     * getActivityIcon(intent.getClassName()).  Otherwise it resolves the intent's
2407     * component and returns the icon associated with the resolved component.
2408     * If intent.getClassName() cannot be found or the Intent cannot be resolved
2409     * to a component, NameNotFoundException is thrown.
2410     *
2411     * @param intent The intent for which you would like to retrieve an icon.
2412     *
2413     * @return Returns the image of the icon, or the default activity icon if
2414     * it could not be found.  Does not return null.
2415     * @throws NameNotFoundException Thrown if the resources for application
2416     * matching the given intent could not be loaded.
2417     *
2418     * @see #getActivityIcon(ComponentName)
2419     */
2420    public abstract Drawable getActivityIcon(Intent intent)
2421            throws NameNotFoundException;
2422
2423    /**
2424     * Retrieve the banner associated with an activity. Given the full name of
2425     * an activity, retrieves the information about it and calls
2426     * {@link ComponentInfo#loadIcon ComponentInfo.loadIcon()} to return its
2427     * banner. If the activity cannot be found, NameNotFoundException is thrown.
2428     *
2429     * @param activityName Name of the activity whose banner is to be retrieved.
2430     * @return Returns the image of the banner, or null if the activity has no
2431     *         banner specified.
2432     * @throws NameNotFoundException Thrown if the resources for the given
2433     *             activity could not be loaded.
2434     * @see #getActivityBanner(Intent)
2435     */
2436    public abstract Drawable getActivityBanner(ComponentName activityName)
2437            throws NameNotFoundException;
2438
2439    /**
2440     * Retrieve the banner associated with an Intent. If intent.getClassName()
2441     * is set, this simply returns the result of
2442     * getActivityBanner(intent.getClassName()). Otherwise it resolves the
2443     * intent's component and returns the banner associated with the resolved
2444     * component. If intent.getClassName() cannot be found or the Intent cannot
2445     * be resolved to a component, NameNotFoundException is thrown.
2446     *
2447     * @param intent The intent for which you would like to retrieve a banner.
2448     * @return Returns the image of the banner, or null if the activity has no
2449     *         banner specified.
2450     * @throws NameNotFoundException Thrown if the resources for application
2451     *             matching the given intent could not be loaded.
2452     * @see #getActivityBanner(ComponentName)
2453     */
2454    public abstract Drawable getActivityBanner(Intent intent)
2455            throws NameNotFoundException;
2456
2457    /**
2458     * Return the generic icon for an activity that is used when no specific
2459     * icon is defined.
2460     *
2461     * @return Drawable Image of the icon.
2462     */
2463    public abstract Drawable getDefaultActivityIcon();
2464
2465    /**
2466     * Retrieve the icon associated with an application.  If it has not defined
2467     * an icon, the default app icon is returned.  Does not return null.
2468     *
2469     * @param info Information about application being queried.
2470     *
2471     * @return Returns the image of the icon, or the default application icon
2472     * if it could not be found.
2473     *
2474     * @see #getApplicationIcon(String)
2475     */
2476    public abstract Drawable getApplicationIcon(ApplicationInfo info);
2477
2478    /**
2479     * Retrieve the icon associated with an application.  Given the name of the
2480     * application's package, retrieves the information about it and calls
2481     * getApplicationIcon() to return its icon. If the application cannot be
2482     * found, NameNotFoundException is thrown.
2483     *
2484     * @param packageName Name of the package whose application icon is to be
2485     *                    retrieved.
2486     *
2487     * @return Returns the image of the icon, or the default application icon
2488     * if it could not be found.  Does not return null.
2489     * @throws NameNotFoundException Thrown if the resources for the given
2490     * application could not be loaded.
2491     *
2492     * @see #getApplicationIcon(ApplicationInfo)
2493     */
2494    public abstract Drawable getApplicationIcon(String packageName)
2495            throws NameNotFoundException;
2496
2497    /**
2498     * Retrieve the banner associated with an application.
2499     *
2500     * @param info Information about application being queried.
2501     * @return Returns the image of the banner or null if the application has no
2502     *         banner specified.
2503     * @see #getApplicationBanner(String)
2504     */
2505    public abstract Drawable getApplicationBanner(ApplicationInfo info);
2506
2507    /**
2508     * Retrieve the banner associated with an application. Given the name of the
2509     * application's package, retrieves the information about it and calls
2510     * getApplicationIcon() to return its banner. If the application cannot be
2511     * found, NameNotFoundException is thrown.
2512     *
2513     * @param packageName Name of the package whose application banner is to be
2514     *            retrieved.
2515     * @return Returns the image of the banner or null if the application has no
2516     *         banner specified.
2517     * @throws NameNotFoundException Thrown if the resources for the given
2518     *             application could not be loaded.
2519     * @see #getApplicationBanner(ApplicationInfo)
2520     */
2521    public abstract Drawable getApplicationBanner(String packageName)
2522            throws NameNotFoundException;
2523
2524    /**
2525     * Retrieve the logo associated with an activity. Given the full name of an
2526     * activity, retrieves the information about it and calls
2527     * {@link ComponentInfo#loadLogo ComponentInfo.loadLogo()} to return its
2528     * logo. If the activity cannot be found, NameNotFoundException is thrown.
2529     *
2530     * @param activityName Name of the activity whose logo is to be retrieved.
2531     * @return Returns the image of the logo or null if the activity has no logo
2532     *         specified.
2533     * @throws NameNotFoundException Thrown if the resources for the given
2534     *             activity could not be loaded.
2535     * @see #getActivityLogo(Intent)
2536     */
2537    public abstract Drawable getActivityLogo(ComponentName activityName)
2538            throws NameNotFoundException;
2539
2540    /**
2541     * Retrieve the logo associated with an Intent.  If intent.getClassName() is
2542     * set, this simply returns the result of
2543     * getActivityLogo(intent.getClassName()).  Otherwise it resolves the intent's
2544     * component and returns the logo associated with the resolved component.
2545     * If intent.getClassName() cannot be found or the Intent cannot be resolved
2546     * to a component, NameNotFoundException is thrown.
2547     *
2548     * @param intent The intent for which you would like to retrieve a logo.
2549     *
2550     * @return Returns the image of the logo, or null if the activity has no
2551     * logo specified.
2552     *
2553     * @throws NameNotFoundException Thrown if the resources for application
2554     * matching the given intent could not be loaded.
2555     *
2556     * @see #getActivityLogo(ComponentName)
2557     */
2558    public abstract Drawable getActivityLogo(Intent intent)
2559            throws NameNotFoundException;
2560
2561    /**
2562     * Retrieve the logo associated with an application.  If it has not specified
2563     * a logo, this method returns null.
2564     *
2565     * @param info Information about application being queried.
2566     *
2567     * @return Returns the image of the logo, or null if no logo is specified
2568     * by the application.
2569     *
2570     * @see #getApplicationLogo(String)
2571     */
2572    public abstract Drawable getApplicationLogo(ApplicationInfo info);
2573
2574    /**
2575     * Retrieve the logo associated with an application.  Given the name of the
2576     * application's package, retrieves the information about it and calls
2577     * getApplicationLogo() to return its logo. If the application cannot be
2578     * found, NameNotFoundException is thrown.
2579     *
2580     * @param packageName Name of the package whose application logo is to be
2581     *                    retrieved.
2582     *
2583     * @return Returns the image of the logo, or null if no application logo
2584     * has been specified.
2585     *
2586     * @throws NameNotFoundException Thrown if the resources for the given
2587     * application could not be loaded.
2588     *
2589     * @see #getApplicationLogo(ApplicationInfo)
2590     */
2591    public abstract Drawable getApplicationLogo(String packageName)
2592            throws NameNotFoundException;
2593
2594    /**
2595     * Retrieve text from a package.  This is a low-level API used by
2596     * the various package manager info structures (such as
2597     * {@link ComponentInfo} to implement retrieval of their associated
2598     * labels and other text.
2599     *
2600     * @param packageName The name of the package that this text is coming from.
2601     * Cannot be null.
2602     * @param resid The resource identifier of the desired text.  Cannot be 0.
2603     * @param appInfo Overall information about <var>packageName</var>.  This
2604     * may be null, in which case the application information will be retrieved
2605     * for you if needed; if you already have this information around, it can
2606     * be much more efficient to supply it here.
2607     *
2608     * @return Returns a CharSequence holding the requested text.  Returns null
2609     * if the text could not be found for any reason.
2610     */
2611    public abstract CharSequence getText(String packageName, int resid,
2612            ApplicationInfo appInfo);
2613
2614    /**
2615     * Retrieve an XML file from a package.  This is a low-level API used to
2616     * retrieve XML meta data.
2617     *
2618     * @param packageName The name of the package that this xml is coming from.
2619     * Cannot be null.
2620     * @param resid The resource identifier of the desired xml.  Cannot be 0.
2621     * @param appInfo Overall information about <var>packageName</var>.  This
2622     * may be null, in which case the application information will be retrieved
2623     * for you if needed; if you already have this information around, it can
2624     * be much more efficient to supply it here.
2625     *
2626     * @return Returns an XmlPullParser allowing you to parse out the XML
2627     * data.  Returns null if the xml resource could not be found for any
2628     * reason.
2629     */
2630    public abstract XmlResourceParser getXml(String packageName, int resid,
2631            ApplicationInfo appInfo);
2632
2633    /**
2634     * Return the label to use for this application.
2635     *
2636     * @return Returns the label associated with this application, or null if
2637     * it could not be found for any reason.
2638     * @param info The application to get the label of.
2639     */
2640    public abstract CharSequence getApplicationLabel(ApplicationInfo info);
2641
2642    /**
2643     * Retrieve the resources associated with an activity.  Given the full
2644     * name of an activity, retrieves the information about it and calls
2645     * getResources() to return its application's resources.  If the activity
2646     * cannot be found, NameNotFoundException is thrown.
2647     *
2648     * @param activityName Name of the activity whose resources are to be
2649     *                     retrieved.
2650     *
2651     * @return Returns the application's Resources.
2652     * @throws NameNotFoundException Thrown if the resources for the given
2653     * application could not be loaded.
2654     *
2655     * @see #getResourcesForApplication(ApplicationInfo)
2656     */
2657    public abstract Resources getResourcesForActivity(ComponentName activityName)
2658            throws NameNotFoundException;
2659
2660    /**
2661     * Retrieve the resources for an application.  Throws NameNotFoundException
2662     * if the package is no longer installed.
2663     *
2664     * @param app Information about the desired application.
2665     *
2666     * @return Returns the application's Resources.
2667     * @throws NameNotFoundException Thrown if the resources for the given
2668     * application could not be loaded (most likely because it was uninstalled).
2669     */
2670    public abstract Resources getResourcesForApplication(ApplicationInfo app)
2671            throws NameNotFoundException;
2672
2673    /**
2674     * Retrieve the resources associated with an application.  Given the full
2675     * package name of an application, retrieves the information about it and
2676     * calls getResources() to return its application's resources.  If the
2677     * appPackageName cannot be found, NameNotFoundException is thrown.
2678     *
2679     * @param appPackageName Package name of the application whose resources
2680     *                       are to be retrieved.
2681     *
2682     * @return Returns the application's Resources.
2683     * @throws NameNotFoundException Thrown if the resources for the given
2684     * application could not be loaded.
2685     *
2686     * @see #getResourcesForApplication(ApplicationInfo)
2687     */
2688    public abstract Resources getResourcesForApplication(String appPackageName)
2689            throws NameNotFoundException;
2690
2691    /** @hide */
2692    public abstract Resources getResourcesForApplicationAsUser(String appPackageName, int userId)
2693            throws NameNotFoundException;
2694
2695    /**
2696     * Retrieve overall information about an application package defined
2697     * in a package archive file
2698     *
2699     * @param archiveFilePath The path to the archive file
2700     * @param flags Additional option flags. Use any combination of
2701     * {@link #GET_ACTIVITIES},
2702     * {@link #GET_GIDS},
2703     * {@link #GET_CONFIGURATIONS},
2704     * {@link #GET_INSTRUMENTATION},
2705     * {@link #GET_PERMISSIONS},
2706     * {@link #GET_PROVIDERS},
2707     * {@link #GET_RECEIVERS},
2708     * {@link #GET_SERVICES},
2709     * {@link #GET_SIGNATURES}, to modify the data returned.
2710     *
2711     * @return Returns the information about the package. Returns
2712     * null if the package could not be successfully parsed.
2713     *
2714     * @see #GET_ACTIVITIES
2715     * @see #GET_GIDS
2716     * @see #GET_CONFIGURATIONS
2717     * @see #GET_INSTRUMENTATION
2718     * @see #GET_PERMISSIONS
2719     * @see #GET_PROVIDERS
2720     * @see #GET_RECEIVERS
2721     * @see #GET_SERVICES
2722     * @see #GET_SIGNATURES
2723     *
2724     */
2725    public PackageInfo getPackageArchiveInfo(String archiveFilePath, int flags) {
2726        PackageParser packageParser = new PackageParser(archiveFilePath);
2727        DisplayMetrics metrics = new DisplayMetrics();
2728        metrics.setToDefaults();
2729        final File sourceFile = new File(archiveFilePath);
2730        PackageParser.Package pkg = packageParser.parsePackage(
2731                sourceFile, archiveFilePath, metrics, 0);
2732        if (pkg == null) {
2733            return null;
2734        }
2735        if ((flags & GET_SIGNATURES) != 0) {
2736            packageParser.collectCertificates(pkg, 0);
2737        }
2738        PackageUserState state = new PackageUserState();
2739        return PackageParser.generatePackageInfo(pkg, null, flags, 0, 0, null, state);
2740    }
2741
2742    /**
2743     * @hide
2744     *
2745     * Install a package. Since this may take a little while, the result will
2746     * be posted back to the given observer.  An installation will fail if the calling context
2747     * lacks the {@link android.Manifest.permission#INSTALL_PACKAGES} permission, if the
2748     * package named in the package file's manifest is already installed, or if there's no space
2749     * available on the device.
2750     *
2751     * @param packageURI The location of the package file to install.  This can be a 'file:' or a
2752     * 'content:' URI.
2753     * @param observer An observer callback to get notified when the package installation is
2754     * complete. {@link IPackageInstallObserver#packageInstalled(String, int)} will be
2755     * called when that happens.  observer may be null to indicate that no callback is desired.
2756     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2757     * {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
2758     * @param installerPackageName Optional package name of the application that is performing the
2759     * installation. This identifies which market the package came from.
2760     */
2761    public abstract void installPackage(
2762            Uri packageURI, IPackageInstallObserver observer, int flags,
2763            String installerPackageName);
2764
2765    /**
2766     * Similar to
2767     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2768     * with an extra verification file provided.
2769     *
2770     * @param packageURI The location of the package file to install. This can
2771     *            be a 'file:' or a 'content:' URI.
2772     * @param observer An observer callback to get notified when the package
2773     *            installation is complete.
2774     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2775     *            will be called when that happens. observer may be null to
2776     *            indicate that no callback is desired.
2777     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2778     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}
2779     *            .
2780     * @param installerPackageName Optional package name of the application that
2781     *            is performing the installation. This identifies which market
2782     *            the package came from.
2783     * @param verificationURI The location of the supplementary verification
2784     *            file. This can be a 'file:' or a 'content:' URI. May be
2785     *            {@code null}.
2786     * @param manifestDigest an object that holds the digest of the package
2787     *            which can be used to verify ownership. May be {@code null}.
2788     * @param encryptionParams if the package to be installed is encrypted,
2789     *            these parameters describing the encryption and authentication
2790     *            used. May be {@code null}.
2791     * @hide
2792     */
2793    public abstract void installPackageWithVerification(Uri packageURI,
2794            IPackageInstallObserver observer, int flags, String installerPackageName,
2795            Uri verificationURI, ManifestDigest manifestDigest,
2796            ContainerEncryptionParams encryptionParams);
2797
2798    /**
2799     * Similar to
2800     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2801     * with an extra verification information provided.
2802     *
2803     * @param packageURI The location of the package file to install. This can
2804     *            be a 'file:' or a 'content:' URI.
2805     * @param observer An observer callback to get notified when the package
2806     *            installation is complete.
2807     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2808     *            will be called when that happens. observer may be null to
2809     *            indicate that no callback is desired.
2810     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2811     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}
2812     *            .
2813     * @param installerPackageName Optional package name of the application that
2814     *            is performing the installation. This identifies which market
2815     *            the package came from.
2816     * @param verificationParams an object that holds signal information to
2817     *            assist verification. May be {@code null}.
2818     * @param encryptionParams if the package to be installed is encrypted,
2819     *            these parameters describing the encryption and authentication
2820     *            used. May be {@code null}.
2821     *
2822     * @hide
2823     */
2824    public abstract void installPackageWithVerificationAndEncryption(Uri packageURI,
2825            IPackageInstallObserver observer, int flags, String installerPackageName,
2826            VerificationParams verificationParams,
2827            ContainerEncryptionParams encryptionParams);
2828
2829    /**
2830     * If there is already an application with the given package name installed
2831     * on the system for other users, also install it for the calling user.
2832     * @hide
2833     */
2834    public abstract int installExistingPackage(String packageName)
2835            throws NameNotFoundException;
2836
2837    /**
2838     * Allows a package listening to the
2839     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
2840     * broadcast} to respond to the package manager. The response must include
2841     * the {@code verificationCode} which is one of
2842     * {@link PackageManager#VERIFICATION_ALLOW} or
2843     * {@link PackageManager#VERIFICATION_REJECT}.
2844     *
2845     * @param id pending package identifier as passed via the
2846     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra.
2847     * @param verificationCode either {@link PackageManager#VERIFICATION_ALLOW}
2848     *            or {@link PackageManager#VERIFICATION_REJECT}.
2849     * @throws SecurityException if the caller does not have the
2850     *            PACKAGE_VERIFICATION_AGENT permission.
2851     */
2852    public abstract void verifyPendingInstall(int id, int verificationCode);
2853
2854    /**
2855     * Allows a package listening to the
2856     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
2857     * broadcast} to extend the default timeout for a response and declare what
2858     * action to perform after the timeout occurs. The response must include
2859     * the {@code verificationCodeAtTimeout} which is one of
2860     * {@link PackageManager#VERIFICATION_ALLOW} or
2861     * {@link PackageManager#VERIFICATION_REJECT}.
2862     *
2863     * This method may only be called once per package id. Additional calls
2864     * will have no effect.
2865     *
2866     * @param id pending package identifier as passed via the
2867     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra.
2868     * @param verificationCodeAtTimeout either
2869     *            {@link PackageManager#VERIFICATION_ALLOW} or
2870     *            {@link PackageManager#VERIFICATION_REJECT}. If
2871     *            {@code verificationCodeAtTimeout} is neither
2872     *            {@link PackageManager#VERIFICATION_ALLOW} or
2873     *            {@link PackageManager#VERIFICATION_REJECT}, then
2874     *            {@code verificationCodeAtTimeout} will default to
2875     *            {@link PackageManager#VERIFICATION_REJECT}.
2876     * @param millisecondsToDelay the amount of time requested for the timeout.
2877     *            Must be positive and less than
2878     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}. If
2879     *            {@code millisecondsToDelay} is out of bounds,
2880     *            {@code millisecondsToDelay} will be set to the closest in
2881     *            bounds value; namely, 0 or
2882     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}.
2883     * @throws SecurityException if the caller does not have the
2884     *            PACKAGE_VERIFICATION_AGENT permission.
2885     */
2886    public abstract void extendVerificationTimeout(int id,
2887            int verificationCodeAtTimeout, long millisecondsToDelay);
2888
2889    /**
2890     * Change the installer associated with a given package.  There are limitations
2891     * on how the installer package can be changed; in particular:
2892     * <ul>
2893     * <li> A SecurityException will be thrown if <var>installerPackageName</var>
2894     * is not signed with the same certificate as the calling application.
2895     * <li> A SecurityException will be thrown if <var>targetPackage</var> already
2896     * has an installer package, and that installer package is not signed with
2897     * the same certificate as the calling application.
2898     * </ul>
2899     *
2900     * @param targetPackage The installed package whose installer will be changed.
2901     * @param installerPackageName The package name of the new installer.  May be
2902     * null to clear the association.
2903     */
2904    public abstract void setInstallerPackageName(String targetPackage,
2905            String installerPackageName);
2906
2907    /**
2908     * Attempts to delete a package.  Since this may take a little while, the result will
2909     * be posted back to the given observer.  A deletion will fail if the calling context
2910     * lacks the {@link android.Manifest.permission#DELETE_PACKAGES} permission, if the
2911     * named package cannot be found, or if the named package is a "system package".
2912     * (TODO: include pointer to documentation on "system packages")
2913     *
2914     * @param packageName The name of the package to delete
2915     * @param observer An observer callback to get notified when the package deletion is
2916     * complete. {@link android.content.pm.IPackageDeleteObserver#packageDeleted(boolean)} will be
2917     * called when that happens.  observer may be null to indicate that no callback is desired.
2918     * @param flags - possible values: {@link #DELETE_KEEP_DATA},
2919     * {@link #DELETE_ALL_USERS}.
2920     *
2921     * @hide
2922     */
2923    public abstract void deletePackage(
2924            String packageName, IPackageDeleteObserver observer, int flags);
2925
2926    /**
2927     * Retrieve the package name of the application that installed a package. This identifies
2928     * which market the package came from.
2929     *
2930     * @param packageName The name of the package to query
2931     */
2932    public abstract String getInstallerPackageName(String packageName);
2933
2934    /**
2935     * Attempts to clear the user data directory of an application.
2936     * Since this may take a little while, the result will
2937     * be posted back to the given observer.  A deletion will fail if the
2938     * named package cannot be found, or if the named package is a "system package".
2939     *
2940     * @param packageName The name of the package
2941     * @param observer An observer callback to get notified when the operation is finished
2942     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
2943     * will be called when that happens.  observer may be null to indicate that
2944     * no callback is desired.
2945     *
2946     * @hide
2947     */
2948    public abstract void clearApplicationUserData(String packageName,
2949            IPackageDataObserver observer);
2950    /**
2951     * Attempts to delete the cache files associated with an application.
2952     * Since this may take a little while, the result will
2953     * be posted back to the given observer.  A deletion will fail if the calling context
2954     * lacks the {@link android.Manifest.permission#DELETE_CACHE_FILES} permission, if the
2955     * named package cannot be found, or if the named package is a "system package".
2956     *
2957     * @param packageName The name of the package to delete
2958     * @param observer An observer callback to get notified when the cache file deletion
2959     * is complete.
2960     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
2961     * will be called when that happens.  observer may be null to indicate that
2962     * no callback is desired.
2963     *
2964     * @hide
2965     */
2966    public abstract void deleteApplicationCacheFiles(String packageName,
2967            IPackageDataObserver observer);
2968
2969    /**
2970     * Free storage by deleting LRU sorted list of cache files across
2971     * all applications. If the currently available free storage
2972     * on the device is greater than or equal to the requested
2973     * free storage, no cache files are cleared. If the currently
2974     * available storage on the device is less than the requested
2975     * free storage, some or all of the cache files across
2976     * all applications are deleted (based on last accessed time)
2977     * to increase the free storage space on the device to
2978     * the requested value. There is no guarantee that clearing all
2979     * the cache files from all applications will clear up
2980     * enough storage to achieve the desired value.
2981     * @param freeStorageSize The number of bytes of storage to be
2982     * freed by the system. Say if freeStorageSize is XX,
2983     * and the current free storage is YY,
2984     * if XX is less than YY, just return. if not free XX-YY number
2985     * of bytes if possible.
2986     * @param observer call back used to notify when
2987     * the operation is completed
2988     *
2989     * @hide
2990     */
2991    public abstract void freeStorageAndNotify(long freeStorageSize, IPackageDataObserver observer);
2992
2993    /**
2994     * Free storage by deleting LRU sorted list of cache files across
2995     * all applications. If the currently available free storage
2996     * on the device is greater than or equal to the requested
2997     * free storage, no cache files are cleared. If the currently
2998     * available storage on the device is less than the requested
2999     * free storage, some or all of the cache files across
3000     * all applications are deleted (based on last accessed time)
3001     * to increase the free storage space on the device to
3002     * the requested value. There is no guarantee that clearing all
3003     * the cache files from all applications will clear up
3004     * enough storage to achieve the desired value.
3005     * @param freeStorageSize The number of bytes of storage to be
3006     * freed by the system. Say if freeStorageSize is XX,
3007     * and the current free storage is YY,
3008     * if XX is less than YY, just return. if not free XX-YY number
3009     * of bytes if possible.
3010     * @param pi IntentSender call back used to
3011     * notify when the operation is completed.May be null
3012     * to indicate that no call back is desired.
3013     *
3014     * @hide
3015     */
3016    public abstract void freeStorage(long freeStorageSize, IntentSender pi);
3017
3018    /**
3019     * Retrieve the size information for a package.
3020     * Since this may take a little while, the result will
3021     * be posted back to the given observer.  The calling context
3022     * should have the {@link android.Manifest.permission#GET_PACKAGE_SIZE} permission.
3023     *
3024     * @param packageName The name of the package whose size information is to be retrieved
3025     * @param userHandle The user whose size information should be retrieved.
3026     * @param observer An observer callback to get notified when the operation
3027     * is complete.
3028     * {@link android.content.pm.IPackageStatsObserver#onGetStatsCompleted(PackageStats, boolean)}
3029     * The observer's callback is invoked with a PackageStats object(containing the
3030     * code, data and cache sizes of the package) and a boolean value representing
3031     * the status of the operation. observer may be null to indicate that
3032     * no callback is desired.
3033     *
3034     * @hide
3035     */
3036    public abstract void getPackageSizeInfo(String packageName, int userHandle,
3037            IPackageStatsObserver observer);
3038
3039    /**
3040     * Like {@link #getPackageSizeInfo(String, int, IPackageStatsObserver)}, but
3041     * returns the size for the calling user.
3042     *
3043     * @hide
3044     */
3045    public void getPackageSizeInfo(String packageName, IPackageStatsObserver observer) {
3046        getPackageSizeInfo(packageName, UserHandle.myUserId(), observer);
3047    }
3048
3049    /**
3050     * @deprecated This function no longer does anything; it was an old
3051     * approach to managing preferred activities, which has been superseded
3052     * by (and conflicts with) the modern activity-based preferences.
3053     */
3054    @Deprecated
3055    public abstract void addPackageToPreferred(String packageName);
3056
3057    /**
3058     * @deprecated This function no longer does anything; it was an old
3059     * approach to managing preferred activities, which has been superseded
3060     * by (and conflicts with) the modern activity-based preferences.
3061     */
3062    @Deprecated
3063    public abstract void removePackageFromPreferred(String packageName);
3064
3065    /**
3066     * Retrieve the list of all currently configured preferred packages.  The
3067     * first package on the list is the most preferred, the last is the
3068     * least preferred.
3069     *
3070     * @param flags Additional option flags. Use any combination of
3071     * {@link #GET_ACTIVITIES},
3072     * {@link #GET_GIDS},
3073     * {@link #GET_CONFIGURATIONS},
3074     * {@link #GET_INSTRUMENTATION},
3075     * {@link #GET_PERMISSIONS},
3076     * {@link #GET_PROVIDERS},
3077     * {@link #GET_RECEIVERS},
3078     * {@link #GET_SERVICES},
3079     * {@link #GET_SIGNATURES}, to modify the data returned.
3080     *
3081     * @return Returns a list of PackageInfo objects describing each
3082     * preferred application, in order of preference.
3083     *
3084     * @see #GET_ACTIVITIES
3085     * @see #GET_GIDS
3086     * @see #GET_CONFIGURATIONS
3087     * @see #GET_INSTRUMENTATION
3088     * @see #GET_PERMISSIONS
3089     * @see #GET_PROVIDERS
3090     * @see #GET_RECEIVERS
3091     * @see #GET_SERVICES
3092     * @see #GET_SIGNATURES
3093     */
3094    public abstract List<PackageInfo> getPreferredPackages(int flags);
3095
3096    /**
3097     * @deprecated This is a protected API that should not have been available
3098     * to third party applications.  It is the platform's responsibility for
3099     * assigning preferred activities and this cannot be directly modified.
3100     *
3101     * Add a new preferred activity mapping to the system.  This will be used
3102     * to automatically select the given activity component when
3103     * {@link Context#startActivity(Intent) Context.startActivity()} finds
3104     * multiple matching activities and also matches the given filter.
3105     *
3106     * @param filter The set of intents under which this activity will be
3107     * made preferred.
3108     * @param match The IntentFilter match category that this preference
3109     * applies to.
3110     * @param set The set of activities that the user was picking from when
3111     * this preference was made.
3112     * @param activity The component name of the activity that is to be
3113     * preferred.
3114     */
3115    @Deprecated
3116    public abstract void addPreferredActivity(IntentFilter filter, int match,
3117            ComponentName[] set, ComponentName activity);
3118
3119    /**
3120     * Same as {@link #addPreferredActivity(IntentFilter, int,
3121            ComponentName[], ComponentName)}, but with a specific userId to apply the preference
3122            to.
3123     * @hide
3124     */
3125    public void addPreferredActivity(IntentFilter filter, int match,
3126            ComponentName[] set, ComponentName activity, int userId) {
3127        throw new RuntimeException("Not implemented. Must override in a subclass.");
3128    }
3129
3130    /**
3131     * @deprecated This is a protected API that should not have been available
3132     * to third party applications.  It is the platform's responsibility for
3133     * assigning preferred activities and this cannot be directly modified.
3134     *
3135     * Replaces an existing preferred activity mapping to the system, and if that were not present
3136     * adds a new preferred activity.  This will be used
3137     * to automatically select the given activity component when
3138     * {@link Context#startActivity(Intent) Context.startActivity()} finds
3139     * multiple matching activities and also matches the given filter.
3140     *
3141     * @param filter The set of intents under which this activity will be
3142     * made preferred.
3143     * @param match The IntentFilter match category that this preference
3144     * applies to.
3145     * @param set The set of activities that the user was picking from when
3146     * this preference was made.
3147     * @param activity The component name of the activity that is to be
3148     * preferred.
3149     * @hide
3150     */
3151    @Deprecated
3152    public abstract void replacePreferredActivity(IntentFilter filter, int match,
3153            ComponentName[] set, ComponentName activity);
3154
3155    /**
3156     * Remove all preferred activity mappings, previously added with
3157     * {@link #addPreferredActivity}, from the
3158     * system whose activities are implemented in the given package name.
3159     * An application can only clear its own package(s).
3160     *
3161     * @param packageName The name of the package whose preferred activity
3162     * mappings are to be removed.
3163     */
3164    public abstract void clearPackagePreferredActivities(String packageName);
3165
3166    /**
3167     * Retrieve all preferred activities, previously added with
3168     * {@link #addPreferredActivity}, that are
3169     * currently registered with the system.
3170     *
3171     * @param outFilters A list in which to place the filters of all of the
3172     * preferred activities, or null for none.
3173     * @param outActivities A list in which to place the component names of
3174     * all of the preferred activities, or null for none.
3175     * @param packageName An option package in which you would like to limit
3176     * the list.  If null, all activities will be returned; if non-null, only
3177     * those activities in the given package are returned.
3178     *
3179     * @return Returns the total number of registered preferred activities
3180     * (the number of distinct IntentFilter records, not the number of unique
3181     * activity components) that were found.
3182     */
3183    public abstract int getPreferredActivities(List<IntentFilter> outFilters,
3184            List<ComponentName> outActivities, String packageName);
3185
3186    /**
3187     * Ask for the set of available 'home' activities and the current explicit
3188     * default, if any.
3189     * @hide
3190     */
3191    public abstract ComponentName getHomeActivities(List<ResolveInfo> outActivities);
3192
3193    /**
3194     * Set the enabled setting for a package component (activity, receiver, service, provider).
3195     * This setting will override any enabled state which may have been set by the component in its
3196     * manifest.
3197     *
3198     * @param componentName The component to enable
3199     * @param newState The new enabled state for the component.  The legal values for this state
3200     *                 are:
3201     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
3202     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
3203     *                   and
3204     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
3205     *                 The last one removes the setting, thereby restoring the component's state to
3206     *                 whatever was set in it's manifest (or enabled, by default).
3207     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
3208     */
3209    public abstract void setComponentEnabledSetting(ComponentName componentName,
3210            int newState, int flags);
3211
3212
3213    /**
3214     * Return the the enabled setting for a package component (activity,
3215     * receiver, service, provider).  This returns the last value set by
3216     * {@link #setComponentEnabledSetting(ComponentName, int, int)}; in most
3217     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
3218     * the value originally specified in the manifest has not been modified.
3219     *
3220     * @param componentName The component to retrieve.
3221     * @return Returns the current enabled state for the component.  May
3222     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
3223     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
3224     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
3225     * component's enabled state is based on the original information in
3226     * the manifest as found in {@link ComponentInfo}.
3227     */
3228    public abstract int getComponentEnabledSetting(ComponentName componentName);
3229
3230    /**
3231     * Set the enabled setting for an application
3232     * This setting will override any enabled state which may have been set by the application in
3233     * its manifest.  It also overrides the enabled state set in the manifest for any of the
3234     * application's components.  It does not override any enabled state set by
3235     * {@link #setComponentEnabledSetting} for any of the application's components.
3236     *
3237     * @param packageName The package name of the application to enable
3238     * @param newState The new enabled state for the component.  The legal values for this state
3239     *                 are:
3240     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
3241     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
3242     *                   and
3243     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
3244     *                 The last one removes the setting, thereby restoring the applications's state to
3245     *                 whatever was set in its manifest (or enabled, by default).
3246     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
3247     */
3248    public abstract void setApplicationEnabledSetting(String packageName,
3249            int newState, int flags);
3250
3251    /**
3252     * Return the the enabled setting for an application.  This returns
3253     * the last value set by
3254     * {@link #setApplicationEnabledSetting(String, int, int)}; in most
3255     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
3256     * the value originally specified in the manifest has not been modified.
3257     *
3258     * @param packageName The component to retrieve.
3259     * @return Returns the current enabled state for the component.  May
3260     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
3261     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
3262     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
3263     * application's enabled state is based on the original information in
3264     * the manifest as found in {@link ComponentInfo}.
3265     * @throws IllegalArgumentException if the named package does not exist.
3266     */
3267    public abstract int getApplicationEnabledSetting(String packageName);
3268
3269    /**
3270     * Puts the package in a blocked state, which is almost like an uninstalled state,
3271     * making the package unavailable, but it doesn't remove the data or the actual
3272     * package file.
3273     * @hide
3274     */
3275    public abstract boolean setApplicationBlockedSettingAsUser(String packageName, boolean blocked,
3276            UserHandle userHandle);
3277
3278    /**
3279     * Returns the blocked state of a package.
3280     * @see #setApplicationBlockedSettingAsUser(String, boolean, UserHandle)
3281     * @hide
3282     */
3283    public abstract boolean getApplicationBlockedSettingAsUser(String packageName,
3284            UserHandle userHandle);
3285
3286    /**
3287     * Return whether the device has been booted into safe mode.
3288     */
3289    public abstract boolean isSafeMode();
3290
3291    /**
3292     * Attempts to move package resources from internal to external media or vice versa.
3293     * Since this may take a little while, the result will
3294     * be posted back to the given observer.   This call may fail if the calling context
3295     * lacks the {@link android.Manifest.permission#MOVE_PACKAGE} permission, if the
3296     * named package cannot be found, or if the named package is a "system package".
3297     *
3298     * @param packageName The name of the package to delete
3299     * @param observer An observer callback to get notified when the package move is
3300     * complete. {@link android.content.pm.IPackageMoveObserver#packageMoved(boolean)} will be
3301     * called when that happens.  observer may be null to indicate that no callback is desired.
3302     * @param flags To indicate install location {@link #MOVE_INTERNAL} or
3303     * {@link #MOVE_EXTERNAL_MEDIA}
3304     *
3305     * @hide
3306     */
3307    public abstract void movePackage(
3308            String packageName, IPackageMoveObserver observer, int flags);
3309
3310    /**
3311     * Returns the device identity that verifiers can use to associate their scheme to a particular
3312     * device. This should not be used by anything other than a package verifier.
3313     *
3314     * @return identity that uniquely identifies current device
3315     * @hide
3316     */
3317    public abstract VerifierDeviceIdentity getVerifierDeviceIdentity();
3318
3319    /**
3320     * Returns the data directory for a particular user and package, given the uid of the package.
3321     * @param uid uid of the package, including the userId and appId
3322     * @param packageName name of the package
3323     * @return the user-specific data directory for the package
3324     * @hide
3325     */
3326    public static String getDataDirForUser(int userId, String packageName) {
3327        // TODO: This should be shared with Installer's knowledge of user directory
3328        return Environment.getDataDirectory().toString() + "/user/" + userId
3329                + "/" + packageName;
3330    }
3331}
3332