PackageManager.java revision 035f80d7c75b282f33ab10a33a3019f614ffd67d
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.content.pm;
18
19import android.annotation.SdkConstant;
20import android.annotation.SdkConstant.SdkConstantType;
21import android.content.ComponentName;
22import android.content.Context;
23import android.content.Intent;
24import android.content.IntentFilter;
25import android.content.IntentSender;
26import android.content.res.Resources;
27import android.content.res.XmlResourceParser;
28import android.graphics.drawable.Drawable;
29import android.net.Uri;
30import android.os.Environment;
31import android.os.UserHandle;
32import android.util.AndroidException;
33import android.util.DisplayMetrics;
34
35import java.io.File;
36import java.util.List;
37
38/**
39 * Class for retrieving various kinds of information related to the application
40 * packages that are currently installed on the device.
41 *
42 * You can find this class through {@link Context#getPackageManager}.
43 */
44public abstract class PackageManager {
45
46    /**
47     * This exception is thrown when a given package, application, or component
48     * name can not be found.
49     */
50    public static class NameNotFoundException extends AndroidException {
51        public NameNotFoundException() {
52        }
53
54        public NameNotFoundException(String name) {
55            super(name);
56        }
57    }
58
59    /**
60     * {@link PackageInfo} flag: return information about
61     * activities in the package in {@link PackageInfo#activities}.
62     */
63    public static final int GET_ACTIVITIES              = 0x00000001;
64
65    /**
66     * {@link PackageInfo} flag: return information about
67     * intent receivers in the package in
68     * {@link PackageInfo#receivers}.
69     */
70    public static final int GET_RECEIVERS               = 0x00000002;
71
72    /**
73     * {@link PackageInfo} flag: return information about
74     * services in the package in {@link PackageInfo#services}.
75     */
76    public static final int GET_SERVICES                = 0x00000004;
77
78    /**
79     * {@link PackageInfo} flag: return information about
80     * content providers in the package in
81     * {@link PackageInfo#providers}.
82     */
83    public static final int GET_PROVIDERS               = 0x00000008;
84
85    /**
86     * {@link PackageInfo} flag: return information about
87     * instrumentation in the package in
88     * {@link PackageInfo#instrumentation}.
89     */
90    public static final int GET_INSTRUMENTATION         = 0x00000010;
91
92    /**
93     * {@link PackageInfo} flag: return information about the
94     * intent filters supported by the activity.
95     */
96    public static final int GET_INTENT_FILTERS          = 0x00000020;
97
98    /**
99     * {@link PackageInfo} flag: return information about the
100     * signatures included in the package.
101     */
102    public static final int GET_SIGNATURES          = 0x00000040;
103
104    /**
105     * {@link ResolveInfo} flag: return the IntentFilter that
106     * was matched for a particular ResolveInfo in
107     * {@link ResolveInfo#filter}.
108     */
109    public static final int GET_RESOLVED_FILTER         = 0x00000040;
110
111    /**
112     * {@link ComponentInfo} flag: return the {@link ComponentInfo#metaData}
113     * data {@link android.os.Bundle}s that are associated with a component.
114     * This applies for any API returning a ComponentInfo subclass.
115     */
116    public static final int GET_META_DATA               = 0x00000080;
117
118    /**
119     * {@link PackageInfo} flag: return the
120     * {@link PackageInfo#gids group ids} that are associated with an
121     * application.
122     * This applies for any API returning a PackageInfo class, either
123     * directly or nested inside of another.
124     */
125    public static final int GET_GIDS                    = 0x00000100;
126
127    /**
128     * {@link PackageInfo} flag: include disabled components in the returned info.
129     */
130    public static final int GET_DISABLED_COMPONENTS     = 0x00000200;
131
132    /**
133     * {@link ApplicationInfo} flag: return the
134     * {@link ApplicationInfo#sharedLibraryFiles paths to the shared libraries}
135     * that are associated with an application.
136     * This applies for any API returning an ApplicationInfo class, either
137     * directly or nested inside of another.
138     */
139    public static final int GET_SHARED_LIBRARY_FILES    = 0x00000400;
140
141    /**
142     * {@link ProviderInfo} flag: return the
143     * {@link ProviderInfo#uriPermissionPatterns URI permission patterns}
144     * that are associated with a content provider.
145     * This applies for any API returning a ProviderInfo class, either
146     * directly or nested inside of another.
147     */
148    public static final int GET_URI_PERMISSION_PATTERNS  = 0x00000800;
149    /**
150     * {@link PackageInfo} flag: return information about
151     * permissions in the package in
152     * {@link PackageInfo#permissions}.
153     */
154    public static final int GET_PERMISSIONS               = 0x00001000;
155
156    /**
157     * Flag parameter to retrieve some information about all applications (even
158     * uninstalled ones) which have data directories. This state could have
159     * resulted if applications have been deleted with flag
160     * {@code DONT_DELETE_DATA} with a possibility of being replaced or
161     * reinstalled in future.
162     * <p>
163     * Note: this flag may cause less information about currently installed
164     * applications to be returned.
165     */
166    public static final int GET_UNINSTALLED_PACKAGES = 0x00002000;
167
168    /**
169     * {@link PackageInfo} flag: return information about
170     * hardware preferences in
171     * {@link PackageInfo#configPreferences PackageInfo.configPreferences} and
172     * requested features in {@link PackageInfo#reqFeatures
173     * PackageInfo.reqFeatures}.
174     */
175    public static final int GET_CONFIGURATIONS = 0x00004000;
176
177    /**
178     * {@link PackageInfo} flag: include disabled components which are in
179     * that state only because of {@link #COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED}
180     * in the returned info.  Note that if you set this flag, applications
181     * that are in this disabled state will be reported as enabled.
182     */
183    public static final int GET_DISABLED_UNTIL_USED_COMPONENTS = 0x00008000;
184
185    /**
186     * Resolution and querying flag: if set, only filters that support the
187     * {@link android.content.Intent#CATEGORY_DEFAULT} will be considered for
188     * matching.  This is a synonym for including the CATEGORY_DEFAULT in your
189     * supplied Intent.
190     */
191    public static final int MATCH_DEFAULT_ONLY   = 0x00010000;
192
193    /**
194     * Permission check result: this is returned by {@link #checkPermission}
195     * if the permission has been granted to the given package.
196     */
197    public static final int PERMISSION_GRANTED = 0;
198
199    /**
200     * Permission check result: this is returned by {@link #checkPermission}
201     * if the permission has not been granted to the given package.
202     */
203    public static final int PERMISSION_DENIED = -1;
204
205    /**
206     * Signature check result: this is returned by {@link #checkSignatures}
207     * if all signatures on the two packages match.
208     */
209    public static final int SIGNATURE_MATCH = 0;
210
211    /**
212     * Signature check result: this is returned by {@link #checkSignatures}
213     * if neither of the two packages is signed.
214     */
215    public static final int SIGNATURE_NEITHER_SIGNED = 1;
216
217    /**
218     * Signature check result: this is returned by {@link #checkSignatures}
219     * if the first package is not signed but the second is.
220     */
221    public static final int SIGNATURE_FIRST_NOT_SIGNED = -1;
222
223    /**
224     * Signature check result: this is returned by {@link #checkSignatures}
225     * if the second package is not signed but the first is.
226     */
227    public static final int SIGNATURE_SECOND_NOT_SIGNED = -2;
228
229    /**
230     * Signature check result: this is returned by {@link #checkSignatures}
231     * if not all signatures on both packages match.
232     */
233    public static final int SIGNATURE_NO_MATCH = -3;
234
235    /**
236     * Signature check result: this is returned by {@link #checkSignatures}
237     * if either of the packages are not valid.
238     */
239    public static final int SIGNATURE_UNKNOWN_PACKAGE = -4;
240
241    /**
242     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
243     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
244     * component or application is in its default enabled state (as specified
245     * in its manifest).
246     */
247    public static final int COMPONENT_ENABLED_STATE_DEFAULT = 0;
248
249    /**
250     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
251     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
252     * component or application has been explictily enabled, regardless of
253     * what it has specified in its manifest.
254     */
255    public static final int COMPONENT_ENABLED_STATE_ENABLED = 1;
256
257    /**
258     * Flag for {@link #setApplicationEnabledSetting(String, int, int)}
259     * and {@link #setComponentEnabledSetting(ComponentName, int, int)}: This
260     * component or application has been explicitly disabled, regardless of
261     * what it has specified in its manifest.
262     */
263    public static final int COMPONENT_ENABLED_STATE_DISABLED = 2;
264
265    /**
266     * Flag for {@link #setApplicationEnabledSetting(String, int, int)} only: The
267     * user has explicitly disabled the application, regardless of what it has
268     * specified in its manifest.  Because this is due to the user's request,
269     * they may re-enable it if desired through the appropriate system UI.  This
270     * option currently <strong>can not</strong> be used with
271     * {@link #setComponentEnabledSetting(ComponentName, int, int)}.
272     */
273    public static final int COMPONENT_ENABLED_STATE_DISABLED_USER = 3;
274
275    /**
276     * Flag for {@link #setApplicationEnabledSetting(String, int, int)} only: This
277     * application should be considered, until the point where the user actually
278     * wants to use it.  This means that it will not normally show up to the user
279     * (such as in the launcher), but various parts of the user interface can
280     * use {@link #GET_DISABLED_UNTIL_USED_COMPONENTS} to still see it and allow
281     * the user to select it (as for example an IME, device admin, etc).  Such code,
282     * once the user has selected the app, should at that point also make it enabled.
283     * This option currently <strong>can not</strong> be used with
284     * {@link #setComponentEnabledSetting(ComponentName, int, int)}.
285     */
286    public static final int COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED = 4;
287
288    /**
289     * Flag parameter for {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} to
290     * indicate that this package should be installed as forward locked, i.e. only the app itself
291     * should have access to its code and non-resource assets.
292     * @hide
293     */
294    public static final int INSTALL_FORWARD_LOCK = 0x00000001;
295
296    /**
297     * Flag parameter for {@link #installPackage} to indicate that you want to replace an already
298     * installed package, if one exists.
299     * @hide
300     */
301    public static final int INSTALL_REPLACE_EXISTING = 0x00000002;
302
303    /**
304     * Flag parameter for {@link #installPackage} to indicate that you want to
305     * allow test packages (those that have set android:testOnly in their
306     * manifest) to be installed.
307     * @hide
308     */
309    public static final int INSTALL_ALLOW_TEST = 0x00000004;
310
311    /**
312     * Flag parameter for {@link #installPackage} to indicate that this
313     * package has to be installed on the sdcard.
314     * @hide
315     */
316    public static final int INSTALL_EXTERNAL = 0x00000008;
317
318    /**
319     * Flag parameter for {@link #installPackage} to indicate that this package
320     * has to be installed on the sdcard.
321     * @hide
322     */
323    public static final int INSTALL_INTERNAL = 0x00000010;
324
325    /**
326     * Flag parameter for {@link #installPackage} to indicate that this install
327     * was initiated via ADB.
328     *
329     * @hide
330     */
331    public static final int INSTALL_FROM_ADB = 0x00000020;
332
333    /**
334     * Flag parameter for {@link #installPackage} to indicate that this install
335     * should immediately be visible to all users.
336     *
337     * @hide
338     */
339    public static final int INSTALL_ALL_USERS = 0x00000040;
340
341    /**
342     * Flag parameter for {@link #installPackage} to indicate that it is okay
343     * to install an update to an app where the newly installed app has a lower
344     * version code than the currently installed app.
345     *
346     * @hide
347     */
348    public static final int INSTALL_ALLOW_DOWNGRADE = 0x00000080;
349
350    /**
351     * Flag parameter for
352     * {@link #setComponentEnabledSetting(android.content.ComponentName, int, int)} to indicate
353     * that you don't want to kill the app containing the component.  Be careful when you set this
354     * since changing component states can make the containing application's behavior unpredictable.
355     */
356    public static final int DONT_KILL_APP = 0x00000001;
357
358    /**
359     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
360     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} on success.
361     * @hide
362     */
363    public static final int INSTALL_SUCCEEDED = 1;
364
365    /**
366     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
367     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package is
368     * already installed.
369     * @hide
370     */
371    public static final int INSTALL_FAILED_ALREADY_EXISTS = -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 archive
376     * file is invalid.
377     * @hide
378     */
379    public static final int INSTALL_FAILED_INVALID_APK = -2;
380
381    /**
382     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
383     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the URI passed in
384     * is invalid.
385     * @hide
386     */
387    public static final int INSTALL_FAILED_INVALID_URI = -3;
388
389    /**
390     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
391     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package manager
392     * service found that the device didn't have enough storage space to install the app.
393     * @hide
394     */
395    public static final int INSTALL_FAILED_INSUFFICIENT_STORAGE = -4;
396
397    /**
398     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
399     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if a
400     * package is already installed with the same name.
401     * @hide
402     */
403    public static final int INSTALL_FAILED_DUPLICATE_PACKAGE = -5;
404
405    /**
406     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
407     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
408     * the requested shared user does not exist.
409     * @hide
410     */
411    public static final int INSTALL_FAILED_NO_SHARED_USER = -6;
412
413    /**
414     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
415     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
416     * a previously installed package of the same name has a different signature
417     * than the new package (and the old package's data was not removed).
418     * @hide
419     */
420    public static final int INSTALL_FAILED_UPDATE_INCOMPATIBLE = -7;
421
422    /**
423     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
424     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
425     * the new package is requested a shared user which is already installed on the
426     * device and does not have matching signature.
427     * @hide
428     */
429    public static final int INSTALL_FAILED_SHARED_USER_INCOMPATIBLE = -8;
430
431    /**
432     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
433     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
434     * the new package uses a shared library that is not available.
435     * @hide
436     */
437    public static final int INSTALL_FAILED_MISSING_SHARED_LIBRARY = -9;
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_REPLACE_COULDNT_DELETE = -10;
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 failed while optimizing and validating its dex files,
451     * either because there was not enough storage or the validation failed.
452     * @hide
453     */
454    public static final int INSTALL_FAILED_DEXOPT = -11;
455
456    /**
457     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
458     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
459     * the new package failed because the current SDK version is older than
460     * that required by the package.
461     * @hide
462     */
463    public static final int INSTALL_FAILED_OLDER_SDK = -12;
464
465    /**
466     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
467     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
468     * the new package failed because it contains a content provider with the
469     * same authority as a provider already installed in the system.
470     * @hide
471     */
472    public static final int INSTALL_FAILED_CONFLICTING_PROVIDER = -13;
473
474    /**
475     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
476     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
477     * the new package failed because the current SDK version is newer than
478     * that required by the package.
479     * @hide
480     */
481    public static final int INSTALL_FAILED_NEWER_SDK = -14;
482
483    /**
484     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
485     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
486     * the new package failed because it has specified that it is a test-only
487     * package and the caller has not supplied the {@link #INSTALL_ALLOW_TEST}
488     * flag.
489     * @hide
490     */
491    public static final int INSTALL_FAILED_TEST_ONLY = -15;
492
493    /**
494     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
495     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
496     * the package being installed contains native code, but none that is
497     * compatible with the the device's CPU_ABI.
498     * @hide
499     */
500    public static final int INSTALL_FAILED_CPU_ABI_INCOMPATIBLE = -16;
501
502    /**
503     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
504     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
505     * the new package uses a feature that is not available.
506     * @hide
507     */
508    public static final int INSTALL_FAILED_MISSING_FEATURE = -17;
509
510    // ------ Errors related to sdcard
511    /**
512     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
513     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
514     * a secure container mount point couldn't be accessed on external media.
515     * @hide
516     */
517    public static final int INSTALL_FAILED_CONTAINER_ERROR = -18;
518
519    /**
520     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
521     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
522     * the new package couldn't be installed in the specified install
523     * location.
524     * @hide
525     */
526    public static final int INSTALL_FAILED_INVALID_INSTALL_LOCATION = -19;
527
528    /**
529     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
530     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
531     * the new package couldn't be installed in the specified install
532     * location because the media is not available.
533     * @hide
534     */
535    public static final int INSTALL_FAILED_MEDIA_UNAVAILABLE = -20;
536
537    /**
538     * Installation return code: this is passed to the {@link IPackageInstallObserver} by
539     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
540     * the new package couldn't be installed because the verification timed out.
541     * @hide
542     */
543    public static final int INSTALL_FAILED_VERIFICATION_TIMEOUT = -21;
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 did not succeed.
549     * @hide
550     */
551    public static final int INSTALL_FAILED_VERIFICATION_FAILURE = -22;
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 package changed from what the calling program expected.
557     * @hide
558     */
559    public static final int INSTALL_FAILED_PACKAGE_CHANGED = -23;
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 new package is assigned a different UID than it previously held.
565     * @hide
566     */
567    public static final int INSTALL_FAILED_UID_CHANGED = -24;
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 has an older version code than the currently installed package.
573     * @hide
574     */
575    public static final int INSTALL_FAILED_VERSION_DOWNGRADE = -25;
576
577    /**
578     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
579     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
580     * if the parser was given a path that is not a file, or does not end with the expected
581     * '.apk' extension.
582     * @hide
583     */
584    public static final int INSTALL_PARSE_FAILED_NOT_APK = -100;
585
586    /**
587     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
588     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
589     * if the parser was unable to retrieve the AndroidManifest.xml file.
590     * @hide
591     */
592    public static final int INSTALL_PARSE_FAILED_BAD_MANIFEST = -101;
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 encountered an unexpected exception.
598     * @hide
599     */
600    public static final int INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION = -102;
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 did not find any certificates in the .apk.
606     * @hide
607     */
608    public static final int INSTALL_PARSE_FAILED_NO_CERTIFICATES = -103;
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 found inconsistent certificates on the files in the .apk.
614     * @hide
615     */
616    public static final int INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES = -104;
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 encountered a CertificateEncodingException in one of the
622     * files in the .apk.
623     * @hide
624     */
625    public static final int INSTALL_PARSE_FAILED_CERTIFICATE_ENCODING = -105;
626
627    /**
628     * Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
629     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
630     * if the parser encountered a bad or missing package name in the manifest.
631     * @hide
632     */
633    public static final int INSTALL_PARSE_FAILED_BAD_PACKAGE_NAME = -106;
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 shared user id name in the manifest.
639     * @hide
640     */
641    public static final int INSTALL_PARSE_FAILED_BAD_SHARED_USER_ID = -107;
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 some structural problem in the manifest.
647     * @hide
648     */
649    public static final int INSTALL_PARSE_FAILED_MANIFEST_MALFORMED = -108;
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 did not find any actionable tags (instrumentation or application)
655     * in the manifest.
656     * @hide
657     */
658    public static final int INSTALL_PARSE_FAILED_MANIFEST_EMPTY = -109;
659
660    /**
661     * Installation failed return code: this is passed to the {@link IPackageInstallObserver} by
662     * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
663     * if the system failed to install the package because of system issues.
664     * @hide
665     */
666    public static final int INSTALL_FAILED_INTERNAL_ERROR = -110;
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 the user is restricted from installing
672     * apps.
673     * @hide
674     */
675    public static final int INSTALL_FAILED_USER_RESTRICTED = -111;
676
677    /**
678     * Flag parameter for {@link #deletePackage} to indicate that you don't want to delete the
679     * package's data directory.
680     *
681     * @hide
682     */
683    public static final int DELETE_KEEP_DATA = 0x00000001;
684
685    /**
686     * Flag parameter for {@link #deletePackage} to indicate that you want the
687     * package deleted for all users.
688     *
689     * @hide
690     */
691    public static final int DELETE_ALL_USERS = 0x00000002;
692
693    /**
694     * Flag parameter for {@link #deletePackage} to indicate that, if you are calling
695     * uninstall on a system that has been updated, then don't do the normal process
696     * of uninstalling the update and rolling back to the older system version (which
697     * needs to happen for all users); instead, just mark the app as uninstalled for
698     * the current user.
699     *
700     * @hide
701     */
702    public static final int DELETE_SYSTEM_APP = 0x00000004;
703
704    /**
705     * Return code for when package deletion succeeds. This is passed to the
706     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
707     * succeeded in deleting the package.
708     *
709     * @hide
710     */
711    public static final int DELETE_SUCCEEDED = 1;
712
713    /**
714     * Deletion failed return code: this is passed to the
715     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
716     * failed to delete the package for an unspecified reason.
717     *
718     * @hide
719     */
720    public static final int DELETE_FAILED_INTERNAL_ERROR = -1;
721
722    /**
723     * Deletion failed return code: this is passed to the
724     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
725     * failed to delete the package because it is the active DevicePolicy
726     * manager.
727     *
728     * @hide
729     */
730    public static final int DELETE_FAILED_DEVICE_POLICY_MANAGER = -2;
731
732    /**
733     * Deletion failed return code: this is passed to the
734     * {@link IPackageDeleteObserver} by {@link #deletePackage()} if the system
735     * failed to delete the package since the user is restricted.
736     *
737     * @hide
738     */
739    public static final int DELETE_FAILED_USER_RESTRICTED = -3;
740
741    /**
742     * Return code that is passed to the {@link IPackageMoveObserver} by
743     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)} when the
744     * package has been successfully moved by the system.
745     *
746     * @hide
747     */
748    public static final int MOVE_SUCCEEDED = 1;
749    /**
750     * Error code that is passed to the {@link IPackageMoveObserver} by
751     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
752     * when the package hasn't been successfully moved by the system
753     * because of insufficient memory on specified media.
754     * @hide
755     */
756    public static final int MOVE_FAILED_INSUFFICIENT_STORAGE = -1;
757
758    /**
759     * Error code that is passed to the {@link IPackageMoveObserver} by
760     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
761     * if the specified package doesn't exist.
762     * @hide
763     */
764    public static final int MOVE_FAILED_DOESNT_EXIST = -2;
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 cannot be moved since its a system package.
770     * @hide
771     */
772    public static final int MOVE_FAILED_SYSTEM_PACKAGE = -3;
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 forward locked.
778     * @hide
779     */
780    public static final int MOVE_FAILED_FORWARD_LOCKED = -4;
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 to the specified location.
786     * @hide
787     */
788    public static final int MOVE_FAILED_INVALID_LOCATION = -5;
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_INTERNAL_ERROR = -6;
797
798    /**
799     * Error code that is passed to the {@link IPackageMoveObserver} by
800     * {@link #movePackage(android.net.Uri, IPackageMoveObserver)} if the
801     * specified package already has an operation pending in the
802     * {@link PackageHandler} queue.
803     *
804     * @hide
805     */
806    public static final int MOVE_FAILED_OPERATION_PENDING = -7;
807
808    /**
809     * Flag parameter for {@link #movePackage} to indicate that
810     * the package should be moved to internal storage if its
811     * been installed on external media.
812     * @hide
813     */
814    public static final int MOVE_INTERNAL = 0x00000001;
815
816    /**
817     * Flag parameter for {@link #movePackage} to indicate that
818     * the package should be moved to external media.
819     * @hide
820     */
821    public static final int MOVE_EXTERNAL_MEDIA = 0x00000002;
822
823    /**
824     * Usable by the required verifier as the {@code verificationCode} argument
825     * for {@link PackageManager#verifyPendingInstall} to indicate that it will
826     * allow the installation to proceed without any of the optional verifiers
827     * needing to vote.
828     *
829     * @hide
830     */
831    public static final int VERIFICATION_ALLOW_WITHOUT_SUFFICIENT = 2;
832
833    /**
834     * Used as the {@code verificationCode} argument for
835     * {@link PackageManager#verifyPendingInstall} to indicate that the calling
836     * package verifier allows the installation to proceed.
837     */
838    public static final int VERIFICATION_ALLOW = 1;
839
840    /**
841     * Used as the {@code verificationCode} argument for
842     * {@link PackageManager#verifyPendingInstall} to indicate the calling
843     * package verifier does not vote to allow the installation to proceed.
844     */
845    public static final int VERIFICATION_REJECT = -1;
846
847    /**
848     * Can be used as the {@code millisecondsToDelay} argument for
849     * {@link PackageManager#extendVerificationTimeout}. This is the
850     * maximum time {@code PackageManager} waits for the verification
851     * agent to return (in milliseconds).
852     */
853    public static final long MAXIMUM_VERIFICATION_TIMEOUT = 60*60*1000;
854
855    /**
856     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}: The device's
857     * audio pipeline is low-latency, more suitable for audio applications sensitive to delays or
858     * lag in sound input or output.
859     */
860    @SdkConstant(SdkConstantType.FEATURE)
861    public static final String FEATURE_AUDIO_LOW_LATENCY = "android.hardware.audio.low_latency";
862
863    /**
864     * Feature for {@link #getSystemAvailableFeatures} and
865     * {@link #hasSystemFeature}: The device is capable of communicating with
866     * other devices via Bluetooth.
867     */
868    @SdkConstant(SdkConstantType.FEATURE)
869    public static final String FEATURE_BLUETOOTH = "android.hardware.bluetooth";
870
871    /**
872     * Feature for {@link #getSystemAvailableFeatures} and
873     * {@link #hasSystemFeature}: The device has a camera facing away
874     * from the screen.
875     */
876    @SdkConstant(SdkConstantType.FEATURE)
877    public static final String FEATURE_CAMERA = "android.hardware.camera";
878
879    /**
880     * Feature for {@link #getSystemAvailableFeatures} and
881     * {@link #hasSystemFeature}: The device's camera supports auto-focus.
882     */
883    @SdkConstant(SdkConstantType.FEATURE)
884    public static final String FEATURE_CAMERA_AUTOFOCUS = "android.hardware.camera.autofocus";
885
886    /**
887     * Feature for {@link #getSystemAvailableFeatures} and
888     * {@link #hasSystemFeature}: The device has at least one camera pointing in
889     * some direction.
890     */
891    @SdkConstant(SdkConstantType.FEATURE)
892    public static final String FEATURE_CAMERA_ANY = "android.hardware.camera.any";
893
894    /**
895     * Feature for {@link #getSystemAvailableFeatures} and
896     * {@link #hasSystemFeature}: The device's camera supports flash.
897     */
898    @SdkConstant(SdkConstantType.FEATURE)
899    public static final String FEATURE_CAMERA_FLASH = "android.hardware.camera.flash";
900
901    /**
902     * Feature for {@link #getSystemAvailableFeatures} and
903     * {@link #hasSystemFeature}: The device has a front facing camera.
904     */
905    @SdkConstant(SdkConstantType.FEATURE)
906    public static final String FEATURE_CAMERA_FRONT = "android.hardware.camera.front";
907
908    /**
909     * Feature for {@link #getSystemAvailableFeatures} and
910     * {@link #hasSystemFeature}: The device supports one or more methods of
911     * reporting current location.
912     */
913    @SdkConstant(SdkConstantType.FEATURE)
914    public static final String FEATURE_LOCATION = "android.hardware.location";
915
916    /**
917     * Feature for {@link #getSystemAvailableFeatures} and
918     * {@link #hasSystemFeature}: The device has a Global Positioning System
919     * receiver and can report precise location.
920     */
921    @SdkConstant(SdkConstantType.FEATURE)
922    public static final String FEATURE_LOCATION_GPS = "android.hardware.location.gps";
923
924    /**
925     * Feature for {@link #getSystemAvailableFeatures} and
926     * {@link #hasSystemFeature}: The device can report location with coarse
927     * accuracy using a network-based geolocation system.
928     */
929    @SdkConstant(SdkConstantType.FEATURE)
930    public static final String FEATURE_LOCATION_NETWORK = "android.hardware.location.network";
931
932    /**
933     * Feature for {@link #getSystemAvailableFeatures} and
934     * {@link #hasSystemFeature}: The device can record audio via a
935     * microphone.
936     */
937    @SdkConstant(SdkConstantType.FEATURE)
938    public static final String FEATURE_MICROPHONE = "android.hardware.microphone";
939
940    /**
941     * Feature for {@link #getSystemAvailableFeatures} and
942     * {@link #hasSystemFeature}: The device can communicate using Near-Field
943     * Communications (NFC).
944     */
945    @SdkConstant(SdkConstantType.FEATURE)
946    public static final String FEATURE_NFC = "android.hardware.nfc";
947
948    /**
949     * Feature for {@link #getSystemAvailableFeatures} and
950     * {@link #hasSystemFeature}: The device includes an accelerometer.
951     */
952    @SdkConstant(SdkConstantType.FEATURE)
953    public static final String FEATURE_SENSOR_ACCELEROMETER = "android.hardware.sensor.accelerometer";
954
955    /**
956     * Feature for {@link #getSystemAvailableFeatures} and
957     * {@link #hasSystemFeature}: The device includes a barometer (air
958     * pressure sensor.)
959     */
960    @SdkConstant(SdkConstantType.FEATURE)
961    public static final String FEATURE_SENSOR_BAROMETER = "android.hardware.sensor.barometer";
962
963    /**
964     * Feature for {@link #getSystemAvailableFeatures} and
965     * {@link #hasSystemFeature}: The device includes a magnetometer (compass).
966     */
967    @SdkConstant(SdkConstantType.FEATURE)
968    public static final String FEATURE_SENSOR_COMPASS = "android.hardware.sensor.compass";
969
970    /**
971     * Feature for {@link #getSystemAvailableFeatures} and
972     * {@link #hasSystemFeature}: The device includes a gyroscope.
973     */
974    @SdkConstant(SdkConstantType.FEATURE)
975    public static final String FEATURE_SENSOR_GYROSCOPE = "android.hardware.sensor.gyroscope";
976
977    /**
978     * Feature for {@link #getSystemAvailableFeatures} and
979     * {@link #hasSystemFeature}: The device includes a light sensor.
980     */
981    @SdkConstant(SdkConstantType.FEATURE)
982    public static final String FEATURE_SENSOR_LIGHT = "android.hardware.sensor.light";
983
984    /**
985     * Feature for {@link #getSystemAvailableFeatures} and
986     * {@link #hasSystemFeature}: The device includes a proximity sensor.
987     */
988    @SdkConstant(SdkConstantType.FEATURE)
989    public static final String FEATURE_SENSOR_PROXIMITY = "android.hardware.sensor.proximity";
990
991    /**
992     * Feature for {@link #getSystemAvailableFeatures} and
993     * {@link #hasSystemFeature}: The device has a telephony radio with data
994     * communication support.
995     */
996    @SdkConstant(SdkConstantType.FEATURE)
997    public static final String FEATURE_TELEPHONY = "android.hardware.telephony";
998
999    /**
1000     * Feature for {@link #getSystemAvailableFeatures} and
1001     * {@link #hasSystemFeature}: The device has a CDMA telephony stack.
1002     */
1003    @SdkConstant(SdkConstantType.FEATURE)
1004    public static final String FEATURE_TELEPHONY_CDMA = "android.hardware.telephony.cdma";
1005
1006    /**
1007     * Feature for {@link #getSystemAvailableFeatures} and
1008     * {@link #hasSystemFeature}: The device has a GSM telephony stack.
1009     */
1010    @SdkConstant(SdkConstantType.FEATURE)
1011    public static final String FEATURE_TELEPHONY_GSM = "android.hardware.telephony.gsm";
1012
1013    /**
1014     * Feature for {@link #getSystemAvailableFeatures} and
1015     * {@link #hasSystemFeature}: The device supports connecting to USB devices
1016     * as the USB host.
1017     */
1018    @SdkConstant(SdkConstantType.FEATURE)
1019    public static final String FEATURE_USB_HOST = "android.hardware.usb.host";
1020
1021    /**
1022     * Feature for {@link #getSystemAvailableFeatures} and
1023     * {@link #hasSystemFeature}: The device supports connecting to USB accessories.
1024     */
1025    @SdkConstant(SdkConstantType.FEATURE)
1026    public static final String FEATURE_USB_ACCESSORY = "android.hardware.usb.accessory";
1027
1028    /**
1029     * Feature for {@link #getSystemAvailableFeatures} and
1030     * {@link #hasSystemFeature}: The SIP API is enabled on the device.
1031     */
1032    @SdkConstant(SdkConstantType.FEATURE)
1033    public static final String FEATURE_SIP = "android.software.sip";
1034
1035    /**
1036     * Feature for {@link #getSystemAvailableFeatures} and
1037     * {@link #hasSystemFeature}: The device supports SIP-based VOIP.
1038     */
1039    @SdkConstant(SdkConstantType.FEATURE)
1040    public static final String FEATURE_SIP_VOIP = "android.software.sip.voip";
1041
1042    /**
1043     * Feature for {@link #getSystemAvailableFeatures} and
1044     * {@link #hasSystemFeature}: The device's display has a touch screen.
1045     */
1046    @SdkConstant(SdkConstantType.FEATURE)
1047    public static final String FEATURE_TOUCHSCREEN = "android.hardware.touchscreen";
1048
1049
1050    /**
1051     * Feature for {@link #getSystemAvailableFeatures} and
1052     * {@link #hasSystemFeature}: The device's touch screen supports
1053     * multitouch sufficient for basic two-finger gesture detection.
1054     */
1055    @SdkConstant(SdkConstantType.FEATURE)
1056    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH = "android.hardware.touchscreen.multitouch";
1057
1058    /**
1059     * Feature for {@link #getSystemAvailableFeatures} and
1060     * {@link #hasSystemFeature}: The device's touch screen is capable of
1061     * tracking two or more fingers fully independently.
1062     */
1063    @SdkConstant(SdkConstantType.FEATURE)
1064    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT = "android.hardware.touchscreen.multitouch.distinct";
1065
1066    /**
1067     * Feature for {@link #getSystemAvailableFeatures} and
1068     * {@link #hasSystemFeature}: The device's touch screen is capable of
1069     * tracking a full hand of fingers fully independently -- that is, 5 or
1070     * more simultaneous independent pointers.
1071     */
1072    @SdkConstant(SdkConstantType.FEATURE)
1073    public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND = "android.hardware.touchscreen.multitouch.jazzhand";
1074
1075    /**
1076     * Feature for {@link #getSystemAvailableFeatures} and
1077     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1078     * does support touch emulation for basic events. For instance, the
1079     * device might use a mouse or remote control to drive a cursor, and
1080     * emulate basic touch pointer events like down, up, drag, etc. All
1081     * devices that support android.hardware.touchscreen or a sub-feature are
1082     * presumed to also support faketouch.
1083     */
1084    @SdkConstant(SdkConstantType.FEATURE)
1085    public static final String FEATURE_FAKETOUCH = "android.hardware.faketouch";
1086
1087    /**
1088     * Feature for {@link #getSystemAvailableFeatures} and
1089     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1090     * does support touch emulation for basic events that supports distinct
1091     * tracking of two or more fingers.  This is an extension of
1092     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1093     * that unlike a distinct multitouch screen as defined by
1094     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT}, these kinds of input
1095     * devices will not actually provide full two-finger gestures since the
1096     * input is being transformed to cursor movement on the screen.  That is,
1097     * single finger gestures will move a cursor; two-finger swipes will
1098     * result in single-finger touch events; other two-finger gestures will
1099     * result in the corresponding two-finger touch event.
1100     */
1101    @SdkConstant(SdkConstantType.FEATURE)
1102    public static final String FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT = "android.hardware.faketouch.multitouch.distinct";
1103
1104    /**
1105     * Feature for {@link #getSystemAvailableFeatures} and
1106     * {@link #hasSystemFeature}: The device does not have a touch screen, but
1107     * does support touch emulation for basic events that supports tracking
1108     * a hand of fingers (5 or more fingers) fully independently.
1109     * This is an extension of
1110     * {@link #FEATURE_FAKETOUCH} for input devices with this capability.  Note
1111     * that unlike a multitouch screen as defined by
1112     * {@link #FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND}, not all two finger
1113     * gestures can be detected due to the limitations described for
1114     * {@link #FEATURE_FAKETOUCH_MULTITOUCH_DISTINCT}.
1115     */
1116    @SdkConstant(SdkConstantType.FEATURE)
1117    public static final String FEATURE_FAKETOUCH_MULTITOUCH_JAZZHAND = "android.hardware.faketouch.multitouch.jazzhand";
1118
1119    /**
1120     * Feature for {@link #getSystemAvailableFeatures} and
1121     * {@link #hasSystemFeature}: The device supports portrait orientation
1122     * screens.  For backwards compatibility, you can assume that if neither
1123     * this nor {@link #FEATURE_SCREEN_LANDSCAPE} is set then the device supports
1124     * both portrait and landscape.
1125     */
1126    @SdkConstant(SdkConstantType.FEATURE)
1127    public static final String FEATURE_SCREEN_PORTRAIT = "android.hardware.screen.portrait";
1128
1129    /**
1130     * Feature for {@link #getSystemAvailableFeatures} and
1131     * {@link #hasSystemFeature}: The device supports landscape orientation
1132     * screens.  For backwards compatibility, you can assume that if neither
1133     * this nor {@link #FEATURE_SCREEN_PORTRAIT} is set then the device supports
1134     * both portrait and landscape.
1135     */
1136    @SdkConstant(SdkConstantType.FEATURE)
1137    public static final String FEATURE_SCREEN_LANDSCAPE = "android.hardware.screen.landscape";
1138
1139    /**
1140     * Feature for {@link #getSystemAvailableFeatures} and
1141     * {@link #hasSystemFeature}: The device supports live wallpapers.
1142     */
1143    @SdkConstant(SdkConstantType.FEATURE)
1144    public static final String FEATURE_LIVE_WALLPAPER = "android.software.live_wallpaper";
1145
1146    /**
1147     * Feature for {@link #getSystemAvailableFeatures} and
1148     * {@link #hasSystemFeature}: The device supports app widgets.
1149     */
1150    @SdkConstant(SdkConstantType.FEATURE)
1151    public static final String FEATURE_APP_WIDGETS = "android.software.app_widgets";
1152
1153    /**
1154     * Feature for {@link #getSystemAvailableFeatures} and
1155     * {@link #hasSystemFeature}: The device supports a home screen that is replaceable
1156     * by third party applications.
1157     */
1158    @SdkConstant(SdkConstantType.FEATURE)
1159    public static final String FEATURE_HOME_SCREEN = "android.software.home_screen";
1160
1161    /**
1162     * Feature for {@link #getSystemAvailableFeatures} and
1163     * {@link #hasSystemFeature}: The device supports adding new input methods implemented
1164     * with the {@link android.inputmethodservice.InputMethodService} API.
1165     */
1166    @SdkConstant(SdkConstantType.FEATURE)
1167    public static final String FEATURE_INPUT_METHODS = "android.software.input_methods";
1168
1169    /**
1170     * Feature for {@link #getSystemAvailableFeatures} and
1171     * {@link #hasSystemFeature}: The device supports WiFi (802.11) networking.
1172     */
1173    @SdkConstant(SdkConstantType.FEATURE)
1174    public static final String FEATURE_WIFI = "android.hardware.wifi";
1175
1176    /**
1177     * Feature for {@link #getSystemAvailableFeatures} and
1178     * {@link #hasSystemFeature}: The device supports Wi-Fi Direct networking.
1179     */
1180    @SdkConstant(SdkConstantType.FEATURE)
1181    public static final String FEATURE_WIFI_DIRECT = "android.hardware.wifi.direct";
1182
1183    /**
1184     * Feature for {@link #getSystemAvailableFeatures} and
1185     * {@link #hasSystemFeature}: This is a device dedicated to showing UI
1186     * on a television.  Television here is defined to be a typical living
1187     * room television experience: displayed on a big screen, where the user
1188     * is sitting far away from it, and the dominant form of input will be
1189     * something like a DPAD, not through touch or mouse.
1190     */
1191    @SdkConstant(SdkConstantType.FEATURE)
1192    public static final String FEATURE_TELEVISION = "android.hardware.type.television";
1193
1194    /**
1195     * Action to external storage service to clean out removed apps.
1196     * @hide
1197     */
1198    public static final String ACTION_CLEAN_EXTERNAL_STORAGE
1199            = "android.content.pm.CLEAN_EXTERNAL_STORAGE";
1200
1201    /**
1202     * Extra field name for the URI to a verification file. Passed to a package
1203     * verifier.
1204     *
1205     * @hide
1206     */
1207    public static final String EXTRA_VERIFICATION_URI = "android.content.pm.extra.VERIFICATION_URI";
1208
1209    /**
1210     * Extra field name for the ID of a package pending verification. Passed to
1211     * a package verifier and is used to call back to
1212     * {@link PackageManager#verifyPendingInstall(int, int)}
1213     */
1214    public static final String EXTRA_VERIFICATION_ID = "android.content.pm.extra.VERIFICATION_ID";
1215
1216    /**
1217     * Extra field name for the package identifier which is trying to install
1218     * the package.
1219     *
1220     * @hide
1221     */
1222    public static final String EXTRA_VERIFICATION_INSTALLER_PACKAGE
1223            = "android.content.pm.extra.VERIFICATION_INSTALLER_PACKAGE";
1224
1225    /**
1226     * Extra field name for the requested install flags for a package pending
1227     * verification. Passed to a package verifier.
1228     *
1229     * @hide
1230     */
1231    public static final String EXTRA_VERIFICATION_INSTALL_FLAGS
1232            = "android.content.pm.extra.VERIFICATION_INSTALL_FLAGS";
1233
1234    /**
1235     * Extra field name for the uid of who is requesting to install
1236     * the package.
1237     *
1238     * @hide
1239     */
1240    public static final String EXTRA_VERIFICATION_INSTALLER_UID
1241            = "android.content.pm.extra.VERIFICATION_INSTALLER_UID";
1242
1243    /**
1244     * Extra field name for the package name of a package pending verification.
1245     *
1246     * @hide
1247     */
1248    public static final String EXTRA_VERIFICATION_PACKAGE_NAME
1249            = "android.content.pm.extra.VERIFICATION_PACKAGE_NAME";
1250    /**
1251     * Extra field name for the result of a verification, either
1252     * {@link #VERIFICATION_ALLOW}, or {@link #VERIFICATION_REJECT}.
1253     * Passed to package verifiers after a package is verified.
1254     */
1255    public static final String EXTRA_VERIFICATION_RESULT
1256            = "android.content.pm.extra.VERIFICATION_RESULT";
1257
1258    /**
1259     * Extra field name for the version code of a package pending verification.
1260     *
1261     * @hide
1262     */
1263    public static final String EXTRA_VERIFICATION_VERSION_CODE
1264            = "android.content.pm.extra.VERIFICATION_VERSION_CODE";
1265
1266    /**
1267     * The action used to request that the user approve a permission request
1268     * from the application.
1269     *
1270     * @hide
1271     */
1272    public static final String ACTION_REQUEST_PERMISSION
1273            = "android.content.pm.action.REQUEST_PERMISSION";
1274
1275    /**
1276     * Extra field name for the list of permissions, which the user must approve.
1277     *
1278     * @hide
1279     */
1280    public static final String EXTRA_REQUEST_PERMISSION_PERMISSION_LIST
1281            = "android.content.pm.extra.PERMISSION_LIST";
1282
1283    /**
1284     * Retrieve overall information about an application package that is
1285     * installed on the system.
1286     * <p>
1287     * Throws {@link NameNotFoundException} if a package with the given name can
1288     * not be found on the system.
1289     *
1290     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1291     *            desired package.
1292     * @param flags Additional option flags. Use any combination of
1293     *            {@link #GET_ACTIVITIES}, {@link #GET_GIDS},
1294     *            {@link #GET_CONFIGURATIONS}, {@link #GET_INSTRUMENTATION},
1295     *            {@link #GET_PERMISSIONS}, {@link #GET_PROVIDERS},
1296     *            {@link #GET_RECEIVERS}, {@link #GET_SERVICES},
1297     *            {@link #GET_SIGNATURES}, {@link #GET_UNINSTALLED_PACKAGES} to
1298     *            modify the data returned.
1299     * @return Returns a PackageInfo object containing information about the
1300     *         package. If flag GET_UNINSTALLED_PACKAGES is set and if the
1301     *         package is not found in the list of installed applications, the
1302     *         package information is retrieved from the list of uninstalled
1303     *         applications(which includes installed applications as well as
1304     *         applications with data directory ie applications which had been
1305     *         deleted with DONT_DELTE_DATA flag set).
1306     * @see #GET_ACTIVITIES
1307     * @see #GET_GIDS
1308     * @see #GET_CONFIGURATIONS
1309     * @see #GET_INSTRUMENTATION
1310     * @see #GET_PERMISSIONS
1311     * @see #GET_PROVIDERS
1312     * @see #GET_RECEIVERS
1313     * @see #GET_SERVICES
1314     * @see #GET_SIGNATURES
1315     * @see #GET_UNINSTALLED_PACKAGES
1316     */
1317    public abstract PackageInfo getPackageInfo(String packageName, int flags)
1318            throws NameNotFoundException;
1319
1320    /**
1321     * Map from the current package names in use on the device to whatever
1322     * the current canonical name of that package is.
1323     * @param names Array of current names to be mapped.
1324     * @return Returns an array of the same size as the original, containing
1325     * the canonical name for each package.
1326     */
1327    public abstract String[] currentToCanonicalPackageNames(String[] names);
1328
1329    /**
1330     * Map from a packages canonical name to the current name in use on the device.
1331     * @param names Array of new names to be mapped.
1332     * @return Returns an array of the same size as the original, containing
1333     * the current name for each package.
1334     */
1335    public abstract String[] canonicalToCurrentPackageNames(String[] names);
1336
1337    /**
1338     * Return a "good" intent to launch a front-door activity in a package,
1339     * for use for example to implement an "open" button when browsing through
1340     * packages.  The current implementation will look first for a main
1341     * activity in the category {@link Intent#CATEGORY_INFO}, next for a
1342     * main activity in the category {@link Intent#CATEGORY_LAUNCHER}, or return
1343     * null if neither are found.
1344     *
1345     * <p>Throws {@link NameNotFoundException} if a package with the given
1346     * name can not be found on the system.
1347     *
1348     * @param packageName The name of the package to inspect.
1349     *
1350     * @return Returns either a fully-qualified Intent that can be used to
1351     * launch the main activity in the package, or null if the package does
1352     * not contain such an activity.
1353     */
1354    public abstract Intent getLaunchIntentForPackage(String packageName);
1355
1356    /**
1357     * Return an array of all of the secondary group-ids that have been
1358     * assigned to a package.
1359     *
1360     * <p>Throws {@link NameNotFoundException} if a package with the given
1361     * name can not be found on the system.
1362     *
1363     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1364     *                    desired package.
1365     *
1366     * @return Returns an int array of the assigned gids, or null if there
1367     * are none.
1368     */
1369    public abstract int[] getPackageGids(String packageName)
1370            throws NameNotFoundException;
1371
1372    /**
1373     * @hide Return the uid associated with the given package name for the
1374     * given user.
1375     *
1376     * <p>Throws {@link NameNotFoundException} if a package with the given
1377     * name can not be found on the system.
1378     *
1379     * @param packageName The full name (i.e. com.google.apps.contacts) of the
1380     *                    desired package.
1381     * @param userHandle The user handle identifier to look up the package under.
1382     *
1383     * @return Returns an integer uid who owns the given package name.
1384     */
1385    public abstract int getPackageUid(String packageName, int userHandle)
1386            throws NameNotFoundException;
1387
1388    /**
1389     * Retrieve all of the information we know about a particular permission.
1390     *
1391     * <p>Throws {@link NameNotFoundException} if a permission with the given
1392     * name can not be found on the system.
1393     *
1394     * @param name The fully qualified name (i.e. com.google.permission.LOGIN)
1395     *             of the permission you are interested in.
1396     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1397     * retrieve any meta-data associated with the permission.
1398     *
1399     * @return Returns a {@link PermissionInfo} containing information about the
1400     *         permission.
1401     */
1402    public abstract PermissionInfo getPermissionInfo(String name, int flags)
1403            throws NameNotFoundException;
1404
1405    /**
1406     * Query for all of the permissions associated with a particular group.
1407     *
1408     * <p>Throws {@link NameNotFoundException} if the given group does not
1409     * exist.
1410     *
1411     * @param group The fully qualified name (i.e. com.google.permission.LOGIN)
1412     *             of the permission group you are interested in.  Use null to
1413     *             find all of the permissions not associated with a group.
1414     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1415     * retrieve any meta-data associated with the permissions.
1416     *
1417     * @return Returns a list of {@link PermissionInfo} containing information
1418     * about all of the permissions in the given group.
1419     */
1420    public abstract List<PermissionInfo> queryPermissionsByGroup(String group,
1421            int flags) throws NameNotFoundException;
1422
1423    /**
1424     * Retrieve all of the information we know about a particular group of
1425     * permissions.
1426     *
1427     * <p>Throws {@link NameNotFoundException} if a permission group with the given
1428     * name can not be found on the system.
1429     *
1430     * @param name The fully qualified name (i.e. com.google.permission_group.APPS)
1431     *             of the permission you are interested in.
1432     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1433     * retrieve any meta-data associated with the permission group.
1434     *
1435     * @return Returns a {@link PermissionGroupInfo} containing information
1436     * about the permission.
1437     */
1438    public abstract PermissionGroupInfo getPermissionGroupInfo(String name,
1439            int flags) throws NameNotFoundException;
1440
1441    /**
1442     * Retrieve all of the known permission groups in the system.
1443     *
1444     * @param flags Additional option flags.  Use {@link #GET_META_DATA} to
1445     * retrieve any meta-data associated with the permission group.
1446     *
1447     * @return Returns a list of {@link PermissionGroupInfo} containing
1448     * information about all of the known permission groups.
1449     */
1450    public abstract List<PermissionGroupInfo> getAllPermissionGroups(int flags);
1451
1452    /**
1453     * Retrieve all of the information we know about a particular
1454     * package/application.
1455     *
1456     * <p>Throws {@link NameNotFoundException} if an application with the given
1457     * package name can not be found on the system.
1458     *
1459     * @param packageName The full name (i.e. com.google.apps.contacts) of an
1460     *                    application.
1461     * @param flags Additional option flags. Use any combination of
1462     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1463     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1464     *
1465     * @return  {@link ApplicationInfo} Returns ApplicationInfo object containing
1466     *         information about the package.
1467     *         If flag GET_UNINSTALLED_PACKAGES is set and  if the package is not
1468     *         found in the list of installed applications,
1469     *         the application information is retrieved from the
1470     *         list of uninstalled applications(which includes
1471     *         installed applications as well as applications
1472     *         with data directory ie applications which had been
1473     *         deleted with DONT_DELTE_DATA flag set).
1474     *
1475     * @see #GET_META_DATA
1476     * @see #GET_SHARED_LIBRARY_FILES
1477     * @see #GET_UNINSTALLED_PACKAGES
1478     */
1479    public abstract ApplicationInfo getApplicationInfo(String packageName,
1480            int flags) throws NameNotFoundException;
1481
1482    /**
1483     * Retrieve all of the information we know about a particular activity
1484     * class.
1485     *
1486     * <p>Throws {@link NameNotFoundException} if an activity with the given
1487     * class name can not be found on the system.
1488     *
1489     * @param component The full component name (i.e.
1490     * com.google.apps.contacts/com.google.apps.contacts.ContactsList) of an Activity
1491     * class.
1492     * @param flags Additional option flags. Use any combination of
1493     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1494     * to modify the data (in ApplicationInfo) returned.
1495     *
1496     * @return {@link ActivityInfo} containing information about the activity.
1497     *
1498     * @see #GET_INTENT_FILTERS
1499     * @see #GET_META_DATA
1500     * @see #GET_SHARED_LIBRARY_FILES
1501     */
1502    public abstract ActivityInfo getActivityInfo(ComponentName component,
1503            int flags) throws NameNotFoundException;
1504
1505    /**
1506     * Retrieve all of the information we know about a particular receiver
1507     * class.
1508     *
1509     * <p>Throws {@link NameNotFoundException} if a receiver with the given
1510     * class name can not be found on the system.
1511     *
1512     * @param component The full component name (i.e.
1513     * com.google.apps.calendar/com.google.apps.calendar.CalendarAlarm) of a Receiver
1514     * class.
1515     * @param flags Additional option flags.  Use any combination of
1516     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1517     * to modify the data returned.
1518     *
1519     * @return {@link ActivityInfo} containing information about the receiver.
1520     *
1521     * @see #GET_INTENT_FILTERS
1522     * @see #GET_META_DATA
1523     * @see #GET_SHARED_LIBRARY_FILES
1524     */
1525    public abstract ActivityInfo getReceiverInfo(ComponentName component,
1526            int flags) throws NameNotFoundException;
1527
1528    /**
1529     * Retrieve all of the information we know about a particular service
1530     * class.
1531     *
1532     * <p>Throws {@link NameNotFoundException} if a service with the given
1533     * class name can not be found on the system.
1534     *
1535     * @param component The full component name (i.e.
1536     * com.google.apps.media/com.google.apps.media.BackgroundPlayback) of a Service
1537     * class.
1538     * @param flags Additional option flags.  Use any combination of
1539     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1540     * to modify the data returned.
1541     *
1542     * @return ServiceInfo containing information about the service.
1543     *
1544     * @see #GET_META_DATA
1545     * @see #GET_SHARED_LIBRARY_FILES
1546     */
1547    public abstract ServiceInfo getServiceInfo(ComponentName component,
1548            int flags) throws NameNotFoundException;
1549
1550    /**
1551     * Retrieve all of the information we know about a particular content
1552     * provider class.
1553     *
1554     * <p>Throws {@link NameNotFoundException} if a provider with the given
1555     * class name can not be found on the system.
1556     *
1557     * @param component The full component name (i.e.
1558     * com.google.providers.media/com.google.providers.media.MediaProvider) of a
1559     * ContentProvider class.
1560     * @param flags Additional option flags.  Use any combination of
1561     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1562     * to modify the data returned.
1563     *
1564     * @return ProviderInfo containing information about the service.
1565     *
1566     * @see #GET_META_DATA
1567     * @see #GET_SHARED_LIBRARY_FILES
1568     */
1569    public abstract ProviderInfo getProviderInfo(ComponentName component,
1570            int flags) throws NameNotFoundException;
1571
1572    /**
1573     * Return a List of all packages that are installed
1574     * on the device.
1575     *
1576     * @param flags Additional option flags. Use any combination of
1577     * {@link #GET_ACTIVITIES},
1578     * {@link #GET_GIDS},
1579     * {@link #GET_CONFIGURATIONS},
1580     * {@link #GET_INSTRUMENTATION},
1581     * {@link #GET_PERMISSIONS},
1582     * {@link #GET_PROVIDERS},
1583     * {@link #GET_RECEIVERS},
1584     * {@link #GET_SERVICES},
1585     * {@link #GET_SIGNATURES},
1586     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1587     *
1588     * @return A List of PackageInfo objects, one for each package that is
1589     *         installed on the device.  In the unlikely case of there being no
1590     *         installed packages, an empty list is returned.
1591     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1592     *         applications including those deleted with DONT_DELETE_DATA
1593     *         (partially installed apps with data directory) will be returned.
1594     *
1595     * @see #GET_ACTIVITIES
1596     * @see #GET_GIDS
1597     * @see #GET_CONFIGURATIONS
1598     * @see #GET_INSTRUMENTATION
1599     * @see #GET_PERMISSIONS
1600     * @see #GET_PROVIDERS
1601     * @see #GET_RECEIVERS
1602     * @see #GET_SERVICES
1603     * @see #GET_SIGNATURES
1604     * @see #GET_UNINSTALLED_PACKAGES
1605     */
1606    public abstract List<PackageInfo> getInstalledPackages(int flags);
1607
1608    /**
1609     * Return a List of all installed packages that are currently
1610     * holding any of the given permissions.
1611     *
1612     * @param flags Additional option flags. Use any combination of
1613     * {@link #GET_ACTIVITIES},
1614     * {@link #GET_GIDS},
1615     * {@link #GET_CONFIGURATIONS},
1616     * {@link #GET_INSTRUMENTATION},
1617     * {@link #GET_PERMISSIONS},
1618     * {@link #GET_PROVIDERS},
1619     * {@link #GET_RECEIVERS},
1620     * {@link #GET_SERVICES},
1621     * {@link #GET_SIGNATURES},
1622     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1623     *
1624     * @return Returns a List of PackageInfo objects, one for each installed
1625     * application that is holding any of the permissions that were provided.
1626     *
1627     * @see #GET_ACTIVITIES
1628     * @see #GET_GIDS
1629     * @see #GET_CONFIGURATIONS
1630     * @see #GET_INSTRUMENTATION
1631     * @see #GET_PERMISSIONS
1632     * @see #GET_PROVIDERS
1633     * @see #GET_RECEIVERS
1634     * @see #GET_SERVICES
1635     * @see #GET_SIGNATURES
1636     * @see #GET_UNINSTALLED_PACKAGES
1637     */
1638    public abstract List<PackageInfo> getPackagesHoldingPermissions(
1639            String[] permissions, int flags);
1640
1641    /**
1642     * Return a List of all packages that are installed on the device, for a specific user.
1643     * Requesting a list of installed packages for another user
1644     * will require the permission INTERACT_ACROSS_USERS_FULL.
1645     * @param flags Additional option flags. Use any combination of
1646     * {@link #GET_ACTIVITIES},
1647     * {@link #GET_GIDS},
1648     * {@link #GET_CONFIGURATIONS},
1649     * {@link #GET_INSTRUMENTATION},
1650     * {@link #GET_PERMISSIONS},
1651     * {@link #GET_PROVIDERS},
1652     * {@link #GET_RECEIVERS},
1653     * {@link #GET_SERVICES},
1654     * {@link #GET_SIGNATURES},
1655     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1656     * @param userId The user for whom the installed packages are to be listed
1657     *
1658     * @return A List of PackageInfo objects, one for each package that is
1659     *         installed on the device.  In the unlikely case of there being no
1660     *         installed packages, an empty list is returned.
1661     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1662     *         applications including those deleted with DONT_DELETE_DATA
1663     *         (partially installed apps with data directory) will be returned.
1664     *
1665     * @see #GET_ACTIVITIES
1666     * @see #GET_GIDS
1667     * @see #GET_CONFIGURATIONS
1668     * @see #GET_INSTRUMENTATION
1669     * @see #GET_PERMISSIONS
1670     * @see #GET_PROVIDERS
1671     * @see #GET_RECEIVERS
1672     * @see #GET_SERVICES
1673     * @see #GET_SIGNATURES
1674     * @see #GET_UNINSTALLED_PACKAGES
1675     *
1676     * @hide
1677     */
1678    public abstract List<PackageInfo> getInstalledPackages(int flags, int userId);
1679
1680    /**
1681     * Check whether a particular package has been granted a particular
1682     * permission.
1683     *
1684     * @param permName The name of the permission you are checking for,
1685     * @param pkgName The name of the package you are checking against.
1686     *
1687     * @return If the package has the permission, PERMISSION_GRANTED is
1688     * returned.  If it does not have the permission, PERMISSION_DENIED
1689     * is returned.
1690     *
1691     * @see #PERMISSION_GRANTED
1692     * @see #PERMISSION_DENIED
1693     */
1694    public abstract int checkPermission(String permName, String pkgName);
1695
1696    /**
1697     * Add a new dynamic permission to the system.  For this to work, your
1698     * package must have defined a permission tree through the
1699     * {@link android.R.styleable#AndroidManifestPermissionTree
1700     * &lt;permission-tree&gt;} tag in its manifest.  A package can only add
1701     * permissions to trees that were defined by either its own package or
1702     * another with the same user id; a permission is in a tree if it
1703     * matches the name of the permission tree + ".": for example,
1704     * "com.foo.bar" is a member of the permission tree "com.foo".
1705     *
1706     * <p>It is good to make your permission tree name descriptive, because you
1707     * are taking possession of that entire set of permission names.  Thus, it
1708     * must be under a domain you control, with a suffix that will not match
1709     * any normal permissions that may be declared in any applications that
1710     * are part of that domain.
1711     *
1712     * <p>New permissions must be added before
1713     * any .apks are installed that use those permissions.  Permissions you
1714     * add through this method are remembered across reboots of the device.
1715     * If the given permission already exists, the info you supply here
1716     * will be used to update it.
1717     *
1718     * @param info Description of the permission to be added.
1719     *
1720     * @return Returns true if a new permission was created, false if an
1721     * existing one was updated.
1722     *
1723     * @throws SecurityException if you are not allowed to add the
1724     * given permission name.
1725     *
1726     * @see #removePermission(String)
1727     */
1728    public abstract boolean addPermission(PermissionInfo info);
1729
1730    /**
1731     * Like {@link #addPermission(PermissionInfo)} but asynchronously
1732     * persists the package manager state after returning from the call,
1733     * allowing it to return quicker and batch a series of adds at the
1734     * expense of no guarantee the added permission will be retained if
1735     * the device is rebooted before it is written.
1736     */
1737    public abstract boolean addPermissionAsync(PermissionInfo info);
1738
1739    /**
1740     * Removes a permission that was previously added with
1741     * {@link #addPermission(PermissionInfo)}.  The same ownership rules apply
1742     * -- you are only allowed to remove permissions that you are allowed
1743     * to add.
1744     *
1745     * @param name The name of the permission to remove.
1746     *
1747     * @throws SecurityException if you are not allowed to remove the
1748     * given permission name.
1749     *
1750     * @see #addPermission(PermissionInfo)
1751     */
1752    public abstract void removePermission(String name);
1753
1754    /**
1755     * Returns an {@link Intent} suitable for passing to {@code startActivityForResult}
1756     * which prompts the user to grant {@code permissions} to this application.
1757     * @hide
1758     *
1759     * @throws NullPointerException if {@code permissions} is {@code null}.
1760     * @throws IllegalArgumentException if {@code permissions} contains {@code null}.
1761     */
1762    public Intent buildPermissionRequestIntent(String... permissions) {
1763        if (permissions == null) {
1764            throw new NullPointerException("permissions cannot be null");
1765        }
1766        for (String permission : permissions) {
1767            if (permission == null) {
1768                throw new IllegalArgumentException("permissions cannot contain null");
1769            }
1770        }
1771
1772        Intent i = new Intent(ACTION_REQUEST_PERMISSION);
1773        i.putExtra(EXTRA_REQUEST_PERMISSION_PERMISSION_LIST, permissions);
1774        i.setPackage("com.android.packageinstaller");
1775        return i;
1776    }
1777
1778    /**
1779     * Grant a permission to an application which the application does not
1780     * already have.  The permission must have been requested by the application,
1781     * but as an optional permission.  If the application is not allowed to
1782     * hold the permission, a SecurityException is thrown.
1783     * @hide
1784     *
1785     * @param packageName The name of the package that the permission will be
1786     * granted to.
1787     * @param permissionName The name of the permission.
1788     */
1789    public abstract void grantPermission(String packageName, String permissionName);
1790
1791    /**
1792     * Revoke a permission that was previously granted by {@link #grantPermission}.
1793     * @hide
1794     *
1795     * @param packageName The name of the package that the permission will be
1796     * granted to.
1797     * @param permissionName The name of the permission.
1798     */
1799    public abstract void revokePermission(String packageName, String permissionName);
1800
1801    /**
1802     * Compare the signatures of two packages to determine if the same
1803     * signature appears in both of them.  If they do contain the same
1804     * signature, then they are allowed special privileges when working
1805     * with each other: they can share the same user-id, run instrumentation
1806     * against each other, etc.
1807     *
1808     * @param pkg1 First package name whose signature will be compared.
1809     * @param pkg2 Second package name whose signature will be compared.
1810     *
1811     * @return Returns an integer indicating whether all signatures on the
1812     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
1813     * all signatures match or < 0 if there is not a match ({@link
1814     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
1815     *
1816     * @see #checkSignatures(int, int)
1817     * @see #SIGNATURE_MATCH
1818     * @see #SIGNATURE_NO_MATCH
1819     * @see #SIGNATURE_UNKNOWN_PACKAGE
1820     */
1821    public abstract int checkSignatures(String pkg1, String pkg2);
1822
1823    /**
1824     * Like {@link #checkSignatures(String, String)}, but takes UIDs of
1825     * the two packages to be checked.  This can be useful, for example,
1826     * when doing the check in an IPC, where the UID is the only identity
1827     * available.  It is functionally identical to determining the package
1828     * associated with the UIDs and checking their signatures.
1829     *
1830     * @param uid1 First UID whose signature will be compared.
1831     * @param uid2 Second UID whose signature will be compared.
1832     *
1833     * @return Returns an integer indicating whether all signatures on the
1834     * two packages match. The value is >= 0 ({@link #SIGNATURE_MATCH}) if
1835     * all signatures match or < 0 if there is not a match ({@link
1836     * #SIGNATURE_NO_MATCH} or {@link #SIGNATURE_UNKNOWN_PACKAGE}).
1837     *
1838     * @see #checkSignatures(String, String)
1839     * @see #SIGNATURE_MATCH
1840     * @see #SIGNATURE_NO_MATCH
1841     * @see #SIGNATURE_UNKNOWN_PACKAGE
1842     */
1843    public abstract int checkSignatures(int uid1, int uid2);
1844
1845    /**
1846     * Retrieve the names of all packages that are associated with a particular
1847     * user id.  In most cases, this will be a single package name, the package
1848     * that has been assigned that user id.  Where there are multiple packages
1849     * sharing the same user id through the "sharedUserId" mechanism, all
1850     * packages with that id will be returned.
1851     *
1852     * @param uid The user id for which you would like to retrieve the
1853     * associated packages.
1854     *
1855     * @return Returns an array of one or more packages assigned to the user
1856     * id, or null if there are no known packages with the given id.
1857     */
1858    public abstract String[] getPackagesForUid(int uid);
1859
1860    /**
1861     * Retrieve the official name associated with a user id.  This name is
1862     * guaranteed to never change, though it is possibly for the underlying
1863     * user id to be changed.  That is, if you are storing information about
1864     * user ids in persistent storage, you should use the string returned
1865     * by this function instead of the raw user-id.
1866     *
1867     * @param uid The user id for which you would like to retrieve a name.
1868     * @return Returns a unique name for the given user id, or null if the
1869     * user id is not currently assigned.
1870     */
1871    public abstract String getNameForUid(int uid);
1872
1873    /**
1874     * Return the user id associated with a shared user name. Multiple
1875     * applications can specify a shared user name in their manifest and thus
1876     * end up using a common uid. This might be used for new applications
1877     * that use an existing shared user name and need to know the uid of the
1878     * shared user.
1879     *
1880     * @param sharedUserName The shared user name whose uid is to be retrieved.
1881     * @return Returns the uid associated with the shared user, or  NameNotFoundException
1882     * if the shared user name is not being used by any installed packages
1883     * @hide
1884     */
1885    public abstract int getUidForSharedUser(String sharedUserName)
1886            throws NameNotFoundException;
1887
1888    /**
1889     * Return a List of all application packages that are installed on the
1890     * device. If flag GET_UNINSTALLED_PACKAGES has been set, a list of all
1891     * applications including those deleted with DONT_DELETE_DATA (partially
1892     * installed apps with data directory) will be returned.
1893     *
1894     * @param flags Additional option flags. Use any combination of
1895     * {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
1896     * {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
1897     *
1898     * @return Returns a List of ApplicationInfo objects, one for each application that
1899     *         is installed on the device.  In the unlikely case of there being
1900     *         no installed applications, an empty list is returned.
1901     *         If flag GET_UNINSTALLED_PACKAGES is set, a list of all
1902     *         applications including those deleted with DONT_DELETE_DATA
1903     *         (partially installed apps with data directory) will be returned.
1904     *
1905     * @see #GET_META_DATA
1906     * @see #GET_SHARED_LIBRARY_FILES
1907     * @see #GET_UNINSTALLED_PACKAGES
1908     */
1909    public abstract List<ApplicationInfo> getInstalledApplications(int flags);
1910
1911    /**
1912     * Get a list of shared libraries that are available on the
1913     * system.
1914     *
1915     * @return An array of shared library names that are
1916     * available on the system, or null if none are installed.
1917     *
1918     */
1919    public abstract String[] getSystemSharedLibraryNames();
1920
1921    /**
1922     * Get a list of features that are available on the
1923     * system.
1924     *
1925     * @return An array of FeatureInfo classes describing the features
1926     * that are available on the system, or null if there are none(!!).
1927     */
1928    public abstract FeatureInfo[] getSystemAvailableFeatures();
1929
1930    /**
1931     * Check whether the given feature name is one of the available
1932     * features as returned by {@link #getSystemAvailableFeatures()}.
1933     *
1934     * @return Returns true if the devices supports the feature, else
1935     * false.
1936     */
1937    public abstract boolean hasSystemFeature(String name);
1938
1939    /**
1940     * Determine the best action to perform for a given Intent.  This is how
1941     * {@link Intent#resolveActivity} finds an activity if a class has not
1942     * been explicitly specified.
1943     *
1944     * <p><em>Note:</em> if using an implicit Intent (without an explicit ComponentName
1945     * specified), be sure to consider whether to set the {@link #MATCH_DEFAULT_ONLY}
1946     * only flag.  You need to do so to resolve the activity in the same way
1947     * that {@link android.content.Context#startActivity(Intent)} and
1948     * {@link android.content.Intent#resolveActivity(PackageManager)
1949     * Intent.resolveActivity(PackageManager)} do.</p>
1950     *
1951     * @param intent An intent containing all of the desired specification
1952     *               (action, data, type, category, and/or component).
1953     * @param flags Additional option flags.  The most important is
1954     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1955     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1956     *
1957     * @return Returns a ResolveInfo containing the final activity intent that
1958     *         was determined to be the best action.  Returns null if no
1959     *         matching activity was found. If multiple matching activities are
1960     *         found and there is no default set, returns a ResolveInfo
1961     *         containing something else, such as the activity resolver.
1962     *
1963     * @see #MATCH_DEFAULT_ONLY
1964     * @see #GET_INTENT_FILTERS
1965     * @see #GET_RESOLVED_FILTER
1966     */
1967    public abstract ResolveInfo resolveActivity(Intent intent, int flags);
1968
1969    /**
1970     * Determine the best action to perform for a given Intent for a given user. This
1971     * is how {@link Intent#resolveActivity} finds an activity if a class has not
1972     * been explicitly specified.
1973     *
1974     * <p><em>Note:</em> if using an implicit Intent (without an explicit ComponentName
1975     * specified), be sure to consider whether to set the {@link #MATCH_DEFAULT_ONLY}
1976     * only flag.  You need to do so to resolve the activity in the same way
1977     * that {@link android.content.Context#startActivity(Intent)} and
1978     * {@link android.content.Intent#resolveActivity(PackageManager)
1979     * Intent.resolveActivity(PackageManager)} do.</p>
1980     *
1981     * @param intent An intent containing all of the desired specification
1982     *               (action, data, type, category, and/or component).
1983     * @param flags Additional option flags.  The most important is
1984     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
1985     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
1986     * @param userId The user id.
1987     *
1988     * @return Returns a ResolveInfo containing the final activity intent that
1989     *         was determined to be the best action.  Returns null if no
1990     *         matching activity was found. If multiple matching activities are
1991     *         found and there is no default set, returns a ResolveInfo
1992     *         containing something else, such as the activity resolver.
1993     *
1994     * @see #MATCH_DEFAULT_ONLY
1995     * @see #GET_INTENT_FILTERS
1996     * @see #GET_RESOLVED_FILTER
1997     *
1998     * @hide
1999     */
2000    public abstract ResolveInfo resolveActivityAsUser(Intent intent, int flags, int userId);
2001
2002    /**
2003     * Retrieve all activities that can be performed for the given intent.
2004     *
2005     * @param intent The desired intent as per resolveActivity().
2006     * @param flags Additional option flags.  The most important is
2007     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2008     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2009     *
2010     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2011     *         Activity. These are ordered from best to worst match -- that
2012     *         is, the first item in the list is what is returned by
2013     *         {@link #resolveActivity}.  If there are no matching activities, an empty
2014     *         list is returned.
2015     *
2016     * @see #MATCH_DEFAULT_ONLY
2017     * @see #GET_INTENT_FILTERS
2018     * @see #GET_RESOLVED_FILTER
2019     */
2020    public abstract List<ResolveInfo> queryIntentActivities(Intent intent,
2021            int flags);
2022
2023    /**
2024     * Retrieve all activities that can be performed for the given intent, for a specific user.
2025     *
2026     * @param intent The desired intent as per resolveActivity().
2027     * @param flags Additional option flags.  The most important is
2028     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2029     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2030     *
2031     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2032     *         Activity. These are ordered from best to worst match -- that
2033     *         is, the first item in the list is what is returned by
2034     *         {@link #resolveActivity}.  If there are no matching activities, an empty
2035     *         list is returned.
2036     *
2037     * @see #MATCH_DEFAULT_ONLY
2038     * @see #GET_INTENT_FILTERS
2039     * @see #GET_RESOLVED_FILTER
2040     * @hide
2041     */
2042    public abstract List<ResolveInfo> queryIntentActivitiesAsUser(Intent intent,
2043            int flags, int userId);
2044
2045
2046    /**
2047     * Retrieve a set of activities that should be presented to the user as
2048     * similar options.  This is like {@link #queryIntentActivities}, except it
2049     * also allows you to supply a list of more explicit Intents that you would
2050     * like to resolve to particular options, and takes care of returning the
2051     * final ResolveInfo list in a reasonable order, with no duplicates, based
2052     * on those inputs.
2053     *
2054     * @param caller The class name of the activity that is making the
2055     *               request.  This activity will never appear in the output
2056     *               list.  Can be null.
2057     * @param specifics An array of Intents that should be resolved to the
2058     *                  first specific results.  Can be null.
2059     * @param intent The desired intent as per resolveActivity().
2060     * @param flags Additional option flags.  The most important is
2061     * {@link #MATCH_DEFAULT_ONLY}, to limit the resolution to only
2062     * those activities that support the {@link android.content.Intent#CATEGORY_DEFAULT}.
2063     *
2064     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2065     *         Activity. These are ordered first by all of the intents resolved
2066     *         in <var>specifics</var> and then any additional activities that
2067     *         can handle <var>intent</var> but did not get included by one of
2068     *         the <var>specifics</var> intents.  If there are no matching
2069     *         activities, an empty list is returned.
2070     *
2071     * @see #MATCH_DEFAULT_ONLY
2072     * @see #GET_INTENT_FILTERS
2073     * @see #GET_RESOLVED_FILTER
2074     */
2075    public abstract List<ResolveInfo> queryIntentActivityOptions(
2076            ComponentName caller, Intent[] specifics, Intent intent, int flags);
2077
2078    /**
2079     * Retrieve all receivers that can handle a broadcast of the given intent.
2080     *
2081     * @param intent The desired intent as per resolveActivity().
2082     * @param flags Additional option flags.
2083     *
2084     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2085     *         Receiver. These are ordered from first to last in priority.  If
2086     *         there are no matching receivers, an empty list is returned.
2087     *
2088     * @see #MATCH_DEFAULT_ONLY
2089     * @see #GET_INTENT_FILTERS
2090     * @see #GET_RESOLVED_FILTER
2091     */
2092    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
2093            int flags);
2094
2095    /**
2096     * Retrieve all receivers that can handle a broadcast of the given intent, for a specific
2097     * user.
2098     *
2099     * @param intent The desired intent as per resolveActivity().
2100     * @param flags Additional option flags.
2101     * @param userId The userId of the user being queried.
2102     *
2103     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2104     *         Receiver. These are ordered from first to last in priority.  If
2105     *         there are no matching receivers, an empty list is returned.
2106     *
2107     * @see #MATCH_DEFAULT_ONLY
2108     * @see #GET_INTENT_FILTERS
2109     * @see #GET_RESOLVED_FILTER
2110     * @hide
2111     */
2112    public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
2113            int flags, int userId);
2114
2115    /**
2116     * Determine the best service to handle for a given Intent.
2117     *
2118     * @param intent An intent containing all of the desired specification
2119     *               (action, data, type, category, and/or component).
2120     * @param flags Additional option flags.
2121     *
2122     * @return Returns a ResolveInfo containing the final service intent that
2123     *         was determined to be the best action.  Returns null if no
2124     *         matching service was found.
2125     *
2126     * @see #GET_INTENT_FILTERS
2127     * @see #GET_RESOLVED_FILTER
2128     */
2129    public abstract ResolveInfo resolveService(Intent intent, int flags);
2130
2131    /**
2132     * Retrieve all services that can match the given intent.
2133     *
2134     * @param intent The desired intent as per resolveService().
2135     * @param flags Additional option flags.
2136     *
2137     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2138     *         ServiceInfo. These are ordered from best to worst match -- that
2139     *         is, the first item in the list is what is returned by
2140     *         resolveService().  If there are no matching services, an empty
2141     *         list is returned.
2142     *
2143     * @see #GET_INTENT_FILTERS
2144     * @see #GET_RESOLVED_FILTER
2145     */
2146    public abstract List<ResolveInfo> queryIntentServices(Intent intent,
2147            int flags);
2148
2149    /**
2150     * Retrieve all services that can match the given intent for a given user.
2151     *
2152     * @param intent The desired intent as per resolveService().
2153     * @param flags Additional option flags.
2154     * @param userId The user id.
2155     *
2156     * @return A List&lt;ResolveInfo&gt; containing one entry for each matching
2157     *         ServiceInfo. These are ordered from best to worst match -- that
2158     *         is, the first item in the list is what is returned by
2159     *         resolveService().  If there are no matching services, an empty
2160     *         list is returned.
2161     *
2162     * @see #GET_INTENT_FILTERS
2163     * @see #GET_RESOLVED_FILTER
2164     *
2165     * @hide
2166     */
2167    public abstract List<ResolveInfo> queryIntentServicesAsUser(Intent intent,
2168            int flags, int userId);
2169
2170    /**
2171     * Find a single content provider by its base path name.
2172     *
2173     * @param name The name of the provider to find.
2174     * @param flags Additional option flags.  Currently should always be 0.
2175     *
2176     * @return ContentProviderInfo Information about the provider, if found,
2177     *         else null.
2178     */
2179    public abstract ProviderInfo resolveContentProvider(String name,
2180            int flags);
2181
2182    /**
2183     * Retrieve content provider information.
2184     *
2185     * <p><em>Note: unlike most other methods, an empty result set is indicated
2186     * by a null return instead of an empty list.</em>
2187     *
2188     * @param processName If non-null, limits the returned providers to only
2189     *                    those that are hosted by the given process.  If null,
2190     *                    all content providers are returned.
2191     * @param uid If <var>processName</var> is non-null, this is the required
2192     *        uid owning the requested content providers.
2193     * @param flags Additional option flags.  Currently should always be 0.
2194     *
2195     * @return A List&lt;ContentProviderInfo&gt; containing one entry for each
2196     *         content provider either patching <var>processName</var> or, if
2197     *         <var>processName</var> is null, all known content providers.
2198     *         <em>If there are no matching providers, null is returned.</em>
2199     */
2200    public abstract List<ProviderInfo> queryContentProviders(
2201            String processName, int uid, int flags);
2202
2203    /**
2204     * Retrieve all of the information we know about a particular
2205     * instrumentation class.
2206     *
2207     * <p>Throws {@link NameNotFoundException} if instrumentation with the
2208     * given class name can not be found on the system.
2209     *
2210     * @param className The full name (i.e.
2211     *                  com.google.apps.contacts.InstrumentList) of an
2212     *                  Instrumentation class.
2213     * @param flags Additional option flags.  Currently should always be 0.
2214     *
2215     * @return InstrumentationInfo containing information about the
2216     *         instrumentation.
2217     */
2218    public abstract InstrumentationInfo getInstrumentationInfo(
2219            ComponentName className, int flags) throws NameNotFoundException;
2220
2221    /**
2222     * Retrieve information about available instrumentation code.  May be used
2223     * to retrieve either all instrumentation code, or only the code targeting
2224     * a particular package.
2225     *
2226     * @param targetPackage If null, all instrumentation is returned; only the
2227     *                      instrumentation targeting this package name is
2228     *                      returned.
2229     * @param flags Additional option flags.  Currently should always be 0.
2230     *
2231     * @return A List&lt;InstrumentationInfo&gt; containing one entry for each
2232     *         matching available Instrumentation.  Returns an empty list if
2233     *         there is no instrumentation available for the given package.
2234     */
2235    public abstract List<InstrumentationInfo> queryInstrumentation(
2236            String targetPackage, int flags);
2237
2238    /**
2239     * Retrieve an image from a package.  This is a low-level API used by
2240     * the various package manager info structures (such as
2241     * {@link ComponentInfo} to implement retrieval of their associated
2242     * icon.
2243     *
2244     * @param packageName The name of the package that this icon is coming from.
2245     * Can not be null.
2246     * @param resid The resource identifier of the desired image.  Can not be 0.
2247     * @param appInfo Overall information about <var>packageName</var>.  This
2248     * may be null, in which case the application information will be retrieved
2249     * for you if needed; if you already have this information around, it can
2250     * be much more efficient to supply it here.
2251     *
2252     * @return Returns a Drawable holding the requested image.  Returns null if
2253     * an image could not be found for any reason.
2254     */
2255    public abstract Drawable getDrawable(String packageName, int resid,
2256            ApplicationInfo appInfo);
2257
2258    /**
2259     * Retrieve the icon associated with an activity.  Given the full name of
2260     * an activity, retrieves the information about it and calls
2261     * {@link ComponentInfo#loadIcon ComponentInfo.loadIcon()} to return its icon.
2262     * If the activity can not be found, NameNotFoundException is thrown.
2263     *
2264     * @param activityName Name of the activity whose icon is to be retrieved.
2265     *
2266     * @return Returns the image of the icon, or the default activity icon if
2267     * it could not be found.  Does not return null.
2268     * @throws NameNotFoundException Thrown if the resources for the given
2269     * activity could not be loaded.
2270     *
2271     * @see #getActivityIcon(Intent)
2272     */
2273    public abstract Drawable getActivityIcon(ComponentName activityName)
2274            throws NameNotFoundException;
2275
2276    /**
2277     * Retrieve the icon associated with an Intent.  If intent.getClassName() is
2278     * set, this simply returns the result of
2279     * getActivityIcon(intent.getClassName()).  Otherwise it resolves the intent's
2280     * component and returns the icon associated with the resolved component.
2281     * If intent.getClassName() can not be found or the Intent can not be resolved
2282     * to a component, NameNotFoundException is thrown.
2283     *
2284     * @param intent The intent for which you would like to retrieve an icon.
2285     *
2286     * @return Returns the image of the icon, or the default activity icon if
2287     * it could not be found.  Does not return null.
2288     * @throws NameNotFoundException Thrown if the resources for application
2289     * matching the given intent could not be loaded.
2290     *
2291     * @see #getActivityIcon(ComponentName)
2292     */
2293    public abstract Drawable getActivityIcon(Intent intent)
2294            throws NameNotFoundException;
2295
2296    /**
2297     * Return the generic icon for an activity that is used when no specific
2298     * icon is defined.
2299     *
2300     * @return Drawable Image of the icon.
2301     */
2302    public abstract Drawable getDefaultActivityIcon();
2303
2304    /**
2305     * Retrieve the icon associated with an application.  If it has not defined
2306     * an icon, the default app icon is returned.  Does not return null.
2307     *
2308     * @param info Information about application being queried.
2309     *
2310     * @return Returns the image of the icon, or the default application icon
2311     * if it could not be found.
2312     *
2313     * @see #getApplicationIcon(String)
2314     */
2315    public abstract Drawable getApplicationIcon(ApplicationInfo info);
2316
2317    /**
2318     * Retrieve the icon associated with an application.  Given the name of the
2319     * application's package, retrieves the information about it and calls
2320     * getApplicationIcon() to return its icon. If the application can not be
2321     * found, NameNotFoundException is thrown.
2322     *
2323     * @param packageName Name of the package whose application icon is to be
2324     *                    retrieved.
2325     *
2326     * @return Returns the image of the icon, or the default application icon
2327     * if it could not be found.  Does not return null.
2328     * @throws NameNotFoundException Thrown if the resources for the given
2329     * application could not be loaded.
2330     *
2331     * @see #getApplicationIcon(ApplicationInfo)
2332     */
2333    public abstract Drawable getApplicationIcon(String packageName)
2334            throws NameNotFoundException;
2335
2336    /**
2337     * Retrieve the logo associated with an activity.  Given the full name of
2338     * an activity, retrieves the information about it and calls
2339     * {@link ComponentInfo#loadLogo ComponentInfo.loadLogo()} to return its logo.
2340     * If the activity can not be found, NameNotFoundException is thrown.
2341     *
2342     * @param activityName Name of the activity whose logo is to be retrieved.
2343     *
2344     * @return Returns the image of the logo or null if the activity has no
2345     * logo specified.
2346     *
2347     * @throws NameNotFoundException Thrown if the resources for the given
2348     * activity could not be loaded.
2349     *
2350     * @see #getActivityLogo(Intent)
2351     */
2352    public abstract Drawable getActivityLogo(ComponentName activityName)
2353            throws NameNotFoundException;
2354
2355    /**
2356     * Retrieve the logo associated with an Intent.  If intent.getClassName() is
2357     * set, this simply returns the result of
2358     * getActivityLogo(intent.getClassName()).  Otherwise it resolves the intent's
2359     * component and returns the logo associated with the resolved component.
2360     * If intent.getClassName() can not be found or the Intent can not be resolved
2361     * to a component, NameNotFoundException is thrown.
2362     *
2363     * @param intent The intent for which you would like to retrieve a logo.
2364     *
2365     * @return Returns the image of the logo, or null if the activity has no
2366     * logo specified.
2367     *
2368     * @throws NameNotFoundException Thrown if the resources for application
2369     * matching the given intent could not be loaded.
2370     *
2371     * @see #getActivityLogo(ComponentName)
2372     */
2373    public abstract Drawable getActivityLogo(Intent intent)
2374            throws NameNotFoundException;
2375
2376    /**
2377     * Retrieve the logo associated with an application.  If it has not specified
2378     * a logo, this method returns null.
2379     *
2380     * @param info Information about application being queried.
2381     *
2382     * @return Returns the image of the logo, or null if no logo is specified
2383     * by the application.
2384     *
2385     * @see #getApplicationLogo(String)
2386     */
2387    public abstract Drawable getApplicationLogo(ApplicationInfo info);
2388
2389    /**
2390     * Retrieve the logo associated with an application.  Given the name of the
2391     * application's package, retrieves the information about it and calls
2392     * getApplicationLogo() to return its logo. If the application can not be
2393     * found, NameNotFoundException is thrown.
2394     *
2395     * @param packageName Name of the package whose application logo is to be
2396     *                    retrieved.
2397     *
2398     * @return Returns the image of the logo, or null if no application logo
2399     * has been specified.
2400     *
2401     * @throws NameNotFoundException Thrown if the resources for the given
2402     * application could not be loaded.
2403     *
2404     * @see #getApplicationLogo(ApplicationInfo)
2405     */
2406    public abstract Drawable getApplicationLogo(String packageName)
2407            throws NameNotFoundException;
2408
2409    /**
2410     * Retrieve text from a package.  This is a low-level API used by
2411     * the various package manager info structures (such as
2412     * {@link ComponentInfo} to implement retrieval of their associated
2413     * labels and other text.
2414     *
2415     * @param packageName The name of the package that this text is coming from.
2416     * Can not be null.
2417     * @param resid The resource identifier of the desired text.  Can not be 0.
2418     * @param appInfo Overall information about <var>packageName</var>.  This
2419     * may be null, in which case the application information will be retrieved
2420     * for you if needed; if you already have this information around, it can
2421     * be much more efficient to supply it here.
2422     *
2423     * @return Returns a CharSequence holding the requested text.  Returns null
2424     * if the text could not be found for any reason.
2425     */
2426    public abstract CharSequence getText(String packageName, int resid,
2427            ApplicationInfo appInfo);
2428
2429    /**
2430     * Retrieve an XML file from a package.  This is a low-level API used to
2431     * retrieve XML meta data.
2432     *
2433     * @param packageName The name of the package that this xml is coming from.
2434     * Can not be null.
2435     * @param resid The resource identifier of the desired xml.  Can not be 0.
2436     * @param appInfo Overall information about <var>packageName</var>.  This
2437     * may be null, in which case the application information will be retrieved
2438     * for you if needed; if you already have this information around, it can
2439     * be much more efficient to supply it here.
2440     *
2441     * @return Returns an XmlPullParser allowing you to parse out the XML
2442     * data.  Returns null if the xml resource could not be found for any
2443     * reason.
2444     */
2445    public abstract XmlResourceParser getXml(String packageName, int resid,
2446            ApplicationInfo appInfo);
2447
2448    /**
2449     * Return the label to use for this application.
2450     *
2451     * @return Returns the label associated with this application, or null if
2452     * it could not be found for any reason.
2453     * @param info The application to get the label of
2454     */
2455    public abstract CharSequence getApplicationLabel(ApplicationInfo info);
2456
2457    /**
2458     * Retrieve the resources associated with an activity.  Given the full
2459     * name of an activity, retrieves the information about it and calls
2460     * getResources() to return its application's resources.  If the activity
2461     * can not be found, NameNotFoundException is thrown.
2462     *
2463     * @param activityName Name of the activity whose resources are to be
2464     *                     retrieved.
2465     *
2466     * @return Returns the application's Resources.
2467     * @throws NameNotFoundException Thrown if the resources for the given
2468     * application could not be loaded.
2469     *
2470     * @see #getResourcesForApplication(ApplicationInfo)
2471     */
2472    public abstract Resources getResourcesForActivity(ComponentName activityName)
2473            throws NameNotFoundException;
2474
2475    /**
2476     * Retrieve the resources for an application.  Throws NameNotFoundException
2477     * if the package is no longer installed.
2478     *
2479     * @param app Information about the desired application.
2480     *
2481     * @return Returns the application's Resources.
2482     * @throws NameNotFoundException Thrown if the resources for the given
2483     * application could not be loaded (most likely because it was uninstalled).
2484     */
2485    public abstract Resources getResourcesForApplication(ApplicationInfo app)
2486            throws NameNotFoundException;
2487
2488    /**
2489     * Retrieve the resources associated with an application.  Given the full
2490     * package name of an application, retrieves the information about it and
2491     * calls getResources() to return its application's resources.  If the
2492     * appPackageName can not be found, NameNotFoundException is thrown.
2493     *
2494     * @param appPackageName Package name of the application whose resources
2495     *                       are to be retrieved.
2496     *
2497     * @return Returns the application's Resources.
2498     * @throws NameNotFoundException Thrown if the resources for the given
2499     * application could not be loaded.
2500     *
2501     * @see #getResourcesForApplication(ApplicationInfo)
2502     */
2503    public abstract Resources getResourcesForApplication(String appPackageName)
2504            throws NameNotFoundException;
2505
2506    /** @hide */
2507    public abstract Resources getResourcesForApplicationAsUser(String appPackageName, int userId)
2508            throws NameNotFoundException;
2509
2510    /**
2511     * Retrieve overall information about an application package defined
2512     * in a package archive file
2513     *
2514     * @param archiveFilePath The path to the archive file
2515     * @param flags Additional option flags. Use any combination of
2516     * {@link #GET_ACTIVITIES},
2517     * {@link #GET_GIDS},
2518     * {@link #GET_CONFIGURATIONS},
2519     * {@link #GET_INSTRUMENTATION},
2520     * {@link #GET_PERMISSIONS},
2521     * {@link #GET_PROVIDERS},
2522     * {@link #GET_RECEIVERS},
2523     * {@link #GET_SERVICES},
2524     * {@link #GET_SIGNATURES}, to modify the data returned.
2525     *
2526     * @return Returns the information about the package. Returns
2527     * null if the package could not be successfully parsed.
2528     *
2529     * @see #GET_ACTIVITIES
2530     * @see #GET_GIDS
2531     * @see #GET_CONFIGURATIONS
2532     * @see #GET_INSTRUMENTATION
2533     * @see #GET_PERMISSIONS
2534     * @see #GET_PROVIDERS
2535     * @see #GET_RECEIVERS
2536     * @see #GET_SERVICES
2537     * @see #GET_SIGNATURES
2538     *
2539     */
2540    public PackageInfo getPackageArchiveInfo(String archiveFilePath, int flags) {
2541        PackageParser packageParser = new PackageParser(archiveFilePath);
2542        DisplayMetrics metrics = new DisplayMetrics();
2543        metrics.setToDefaults();
2544        final File sourceFile = new File(archiveFilePath);
2545        PackageParser.Package pkg = packageParser.parsePackage(
2546                sourceFile, archiveFilePath, metrics, 0);
2547        if (pkg == null) {
2548            return null;
2549        }
2550        if ((flags & GET_SIGNATURES) != 0) {
2551            packageParser.collectCertificates(pkg, 0);
2552        }
2553        PackageUserState state = new PackageUserState();
2554        return PackageParser.generatePackageInfo(pkg, null, flags, 0, 0, null, state);
2555    }
2556
2557    /**
2558     * @hide
2559     *
2560     * Install a package. Since this may take a little while, the result will
2561     * be posted back to the given observer.  An installation will fail if the calling context
2562     * lacks the {@link android.Manifest.permission#INSTALL_PACKAGES} permission, if the
2563     * package named in the package file's manifest is already installed, or if there's no space
2564     * available on the device.
2565     *
2566     * @param packageURI The location of the package file to install.  This can be a 'file:' or a
2567     * 'content:' URI.
2568     * @param observer An observer callback to get notified when the package installation is
2569     * complete. {@link IPackageInstallObserver#packageInstalled(String, int)} will be
2570     * called when that happens.  observer may be null to indicate that no callback is desired.
2571     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2572     * {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
2573     * @param installerPackageName Optional package name of the application that is performing the
2574     * installation. This identifies which market the package came from.
2575     */
2576    public abstract void installPackage(
2577            Uri packageURI, IPackageInstallObserver observer, int flags,
2578            String installerPackageName);
2579
2580    /**
2581     * Similar to
2582     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2583     * with an extra verification file provided.
2584     *
2585     * @param packageURI The location of the package file to install. This can
2586     *            be a 'file:' or a 'content:' URI.
2587     * @param observer An observer callback to get notified when the package
2588     *            installation is complete.
2589     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2590     *            will be called when that happens. observer may be null to
2591     *            indicate that no callback is desired.
2592     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2593     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}
2594     *            .
2595     * @param installerPackageName Optional package name of the application that
2596     *            is performing the installation. This identifies which market
2597     *            the package came from.
2598     * @param verificationURI The location of the supplementary verification
2599     *            file. This can be a 'file:' or a 'content:' URI. May be
2600     *            {@code null}.
2601     * @param manifestDigest an object that holds the digest of the package
2602     *            which can be used to verify ownership. May be {@code null}.
2603     * @param encryptionParams if the package to be installed is encrypted,
2604     *            these parameters describing the encryption and authentication
2605     *            used. May be {@code null}.
2606     * @hide
2607     */
2608    public abstract void installPackageWithVerification(Uri packageURI,
2609            IPackageInstallObserver observer, int flags, String installerPackageName,
2610            Uri verificationURI, ManifestDigest manifestDigest,
2611            ContainerEncryptionParams encryptionParams);
2612
2613    /**
2614     * Similar to
2615     * {@link #installPackage(Uri, IPackageInstallObserver, int, String)} but
2616     * with an extra verification information provided.
2617     *
2618     * @param packageURI The location of the package file to install. This can
2619     *            be a 'file:' or a 'content:' URI.
2620     * @param observer An observer callback to get notified when the package
2621     *            installation is complete.
2622     *            {@link IPackageInstallObserver#packageInstalled(String, int)}
2623     *            will be called when that happens. observer may be null to
2624     *            indicate that no callback is desired.
2625     * @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
2626     *            {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}
2627     *            .
2628     * @param installerPackageName Optional package name of the application that
2629     *            is performing the installation. This identifies which market
2630     *            the package came from.
2631     * @param verificationParams an object that holds signal information to
2632     *            assist verification. May be {@code null}.
2633     * @param encryptionParams if the package to be installed is encrypted,
2634     *            these parameters describing the encryption and authentication
2635     *            used. May be {@code null}.
2636     *
2637     * @hide
2638     */
2639    public abstract void installPackageWithVerificationAndEncryption(Uri packageURI,
2640            IPackageInstallObserver observer, int flags, String installerPackageName,
2641            VerificationParams verificationParams,
2642            ContainerEncryptionParams encryptionParams);
2643
2644    /**
2645     * If there is already an application with the given package name installed
2646     * on the system for other users, also install it for the calling user.
2647     * @hide
2648     */
2649    public abstract int installExistingPackage(String packageName)
2650            throws NameNotFoundException;
2651
2652    /**
2653     * Allows a package listening to the
2654     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
2655     * broadcast} to respond to the package manager. The response must include
2656     * the {@code verificationCode} which is one of
2657     * {@link PackageManager#VERIFICATION_ALLOW} or
2658     * {@link PackageManager#VERIFICATION_REJECT}.
2659     *
2660     * @param id pending package identifier as passed via the
2661     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra
2662     * @param verificationCode either {@link PackageManager#VERIFICATION_ALLOW}
2663     *            or {@link PackageManager#VERIFICATION_REJECT}.
2664     * @throws SecurityException if the caller does not have the
2665     *            PACKAGE_VERIFICATION_AGENT permission.
2666     */
2667    public abstract void verifyPendingInstall(int id, int verificationCode);
2668
2669    /**
2670     * Allows a package listening to the
2671     * {@link Intent#ACTION_PACKAGE_NEEDS_VERIFICATION package verification
2672     * broadcast} to extend the default timeout for a response and declare what
2673     * action to perform after the timeout occurs. The response must include
2674     * the {@code verificationCodeAtTimeout} which is one of
2675     * {@link PackageManager#VERIFICATION_ALLOW} or
2676     * {@link PackageManager#VERIFICATION_REJECT}.
2677     *
2678     * This method may only be called once per package id. Additional calls
2679     * will have no effect.
2680     *
2681     * @param id pending package identifier as passed via the
2682     *            {@link PackageManager#EXTRA_VERIFICATION_ID} Intent extra
2683     * @param verificationCodeAtTimeout either
2684     *            {@link PackageManager#VERIFICATION_ALLOW} or
2685     *            {@link PackageManager#VERIFICATION_REJECT}. If
2686     *            {@code verificationCodeAtTimeout} is neither
2687     *            {@link PackageManager#VERIFICATION_ALLOW} or
2688     *            {@link PackageManager#VERIFICATION_REJECT}, then
2689     *            {@code verificationCodeAtTimeout} will default to
2690     *            {@link PackageManager#VERIFICATION_REJECT}.
2691     * @param millisecondsToDelay the amount of time requested for the timeout.
2692     *            Must be positive and less than
2693     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}. If
2694     *            {@code millisecondsToDelay} is out of bounds,
2695     *            {@code millisecondsToDelay} will be set to the closest in
2696     *            bounds value; namely, 0 or
2697     *            {@link PackageManager#MAXIMUM_VERIFICATION_TIMEOUT}.
2698     * @throws SecurityException if the caller does not have the
2699     *            PACKAGE_VERIFICATION_AGENT permission.
2700     */
2701    public abstract void extendVerificationTimeout(int id,
2702            int verificationCodeAtTimeout, long millisecondsToDelay);
2703
2704    /**
2705     * Change the installer associated with a given package.  There are limitations
2706     * on how the installer package can be changed; in particular:
2707     * <ul>
2708     * <li> A SecurityException will be thrown if <var>installerPackageName</var>
2709     * is not signed with the same certificate as the calling application.
2710     * <li> A SecurityException will be thrown if <var>targetPackage</var> already
2711     * has an installer package, and that installer package is not signed with
2712     * the same certificate as the calling application.
2713     * </ul>
2714     *
2715     * @param targetPackage The installed package whose installer will be changed.
2716     * @param installerPackageName The package name of the new installer.  May be
2717     * null to clear the association.
2718     */
2719    public abstract void setInstallerPackageName(String targetPackage,
2720            String installerPackageName);
2721
2722    /**
2723     * Attempts to delete a package.  Since this may take a little while, the result will
2724     * be posted back to the given observer.  A deletion will fail if the calling context
2725     * lacks the {@link android.Manifest.permission#DELETE_PACKAGES} permission, if the
2726     * named package cannot be found, or if the named package is a "system package".
2727     * (TODO: include pointer to documentation on "system packages")
2728     *
2729     * @param packageName The name of the package to delete
2730     * @param observer An observer callback to get notified when the package deletion is
2731     * complete. {@link android.content.pm.IPackageDeleteObserver#packageDeleted(boolean)} will be
2732     * called when that happens.  observer may be null to indicate that no callback is desired.
2733     * @param flags - possible values: {@link #DELETE_KEEP_DATA},
2734     * {@link #DELETE_ALL_USERS}.
2735     *
2736     * @hide
2737     */
2738    public abstract void deletePackage(
2739            String packageName, IPackageDeleteObserver observer, int flags);
2740
2741    /**
2742     * Retrieve the package name of the application that installed a package. This identifies
2743     * which market the package came from.
2744     *
2745     * @param packageName The name of the package to query
2746     */
2747    public abstract String getInstallerPackageName(String packageName);
2748
2749    /**
2750     * Attempts to clear the user data directory of an application.
2751     * Since this may take a little while, the result will
2752     * be posted back to the given observer.  A deletion will fail if the
2753     * named package cannot be found, or if the named package is a "system package".
2754     *
2755     * @param packageName The name of the package
2756     * @param observer An observer callback to get notified when the operation is finished
2757     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
2758     * will be called when that happens.  observer may be null to indicate that
2759     * no callback is desired.
2760     *
2761     * @hide
2762     */
2763    public abstract void clearApplicationUserData(String packageName,
2764            IPackageDataObserver observer);
2765    /**
2766     * Attempts to delete the cache files associated with an application.
2767     * Since this may take a little while, the result will
2768     * be posted back to the given observer.  A deletion will fail if the calling context
2769     * lacks the {@link android.Manifest.permission#DELETE_CACHE_FILES} permission, if the
2770     * named package cannot be found, or if the named package is a "system package".
2771     *
2772     * @param packageName The name of the package to delete
2773     * @param observer An observer callback to get notified when the cache file deletion
2774     * is complete.
2775     * {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
2776     * will be called when that happens.  observer may be null to indicate that
2777     * no callback is desired.
2778     *
2779     * @hide
2780     */
2781    public abstract void deleteApplicationCacheFiles(String packageName,
2782            IPackageDataObserver observer);
2783
2784    /**
2785     * Free storage by deleting LRU sorted list of cache files across
2786     * all applications. If the currently available free storage
2787     * on the device is greater than or equal to the requested
2788     * free storage, no cache files are cleared. If the currently
2789     * available storage on the device is less than the requested
2790     * free storage, some or all of the cache files across
2791     * all applications are deleted (based on last accessed time)
2792     * to increase the free storage space on the device to
2793     * the requested value. There is no guarantee that clearing all
2794     * the cache files from all applications will clear up
2795     * enough storage to achieve the desired value.
2796     * @param freeStorageSize The number of bytes of storage to be
2797     * freed by the system. Say if freeStorageSize is XX,
2798     * and the current free storage is YY,
2799     * if XX is less than YY, just return. if not free XX-YY number
2800     * of bytes if possible.
2801     * @param observer call back used to notify when
2802     * the operation is completed
2803     *
2804     * @hide
2805     */
2806    public abstract void freeStorageAndNotify(long freeStorageSize, IPackageDataObserver observer);
2807
2808    /**
2809     * Free storage by deleting LRU sorted list of cache files across
2810     * all applications. If the currently available free storage
2811     * on the device is greater than or equal to the requested
2812     * free storage, no cache files are cleared. If the currently
2813     * available storage on the device is less than the requested
2814     * free storage, some or all of the cache files across
2815     * all applications are deleted (based on last accessed time)
2816     * to increase the free storage space on the device to
2817     * the requested value. There is no guarantee that clearing all
2818     * the cache files from all applications will clear up
2819     * enough storage to achieve the desired value.
2820     * @param freeStorageSize The number of bytes of storage to be
2821     * freed by the system. Say if freeStorageSize is XX,
2822     * and the current free storage is YY,
2823     * if XX is less than YY, just return. if not free XX-YY number
2824     * of bytes if possible.
2825     * @param pi IntentSender call back used to
2826     * notify when the operation is completed.May be null
2827     * to indicate that no call back is desired.
2828     *
2829     * @hide
2830     */
2831    public abstract void freeStorage(long freeStorageSize, IntentSender pi);
2832
2833    /**
2834     * Retrieve the size information for a package.
2835     * Since this may take a little while, the result will
2836     * be posted back to the given observer.  The calling context
2837     * should have the {@link android.Manifest.permission#GET_PACKAGE_SIZE} permission.
2838     *
2839     * @param packageName The name of the package whose size information is to be retrieved
2840     * @param userHandle The user whose size information should be retrieved.
2841     * @param observer An observer callback to get notified when the operation
2842     * is complete.
2843     * {@link android.content.pm.IPackageStatsObserver#onGetStatsCompleted(PackageStats, boolean)}
2844     * The observer's callback is invoked with a PackageStats object(containing the
2845     * code, data and cache sizes of the package) and a boolean value representing
2846     * the status of the operation. observer may be null to indicate that
2847     * no callback is desired.
2848     *
2849     * @hide
2850     */
2851    public abstract void getPackageSizeInfo(String packageName, int userHandle,
2852            IPackageStatsObserver observer);
2853
2854    /**
2855     * Like {@link #getPackageSizeInfo(String, int, IPackageStatsObserver)}, but
2856     * returns the size for the calling user.
2857     *
2858     * @hide
2859     */
2860    public void getPackageSizeInfo(String packageName, IPackageStatsObserver observer) {
2861        getPackageSizeInfo(packageName, UserHandle.myUserId(), observer);
2862    }
2863
2864    /**
2865     * @deprecated This function no longer does anything; it was an old
2866     * approach to managing preferred activities, which has been superceeded
2867     * (and conflicts with) the modern activity-based preferences.
2868     */
2869    @Deprecated
2870    public abstract void addPackageToPreferred(String packageName);
2871
2872    /**
2873     * @deprecated This function no longer does anything; it was an old
2874     * approach to managing preferred activities, which has been superceeded
2875     * (and conflicts with) the modern activity-based preferences.
2876     */
2877    @Deprecated
2878    public abstract void removePackageFromPreferred(String packageName);
2879
2880    /**
2881     * Retrieve the list of all currently configured preferred packages.  The
2882     * first package on the list is the most preferred, the last is the
2883     * least preferred.
2884     *
2885     * @param flags Additional option flags. Use any combination of
2886     * {@link #GET_ACTIVITIES},
2887     * {@link #GET_GIDS},
2888     * {@link #GET_CONFIGURATIONS},
2889     * {@link #GET_INSTRUMENTATION},
2890     * {@link #GET_PERMISSIONS},
2891     * {@link #GET_PROVIDERS},
2892     * {@link #GET_RECEIVERS},
2893     * {@link #GET_SERVICES},
2894     * {@link #GET_SIGNATURES}, to modify the data returned.
2895     *
2896     * @return Returns a list of PackageInfo objects describing each
2897     * preferred application, in order of preference.
2898     *
2899     * @see #GET_ACTIVITIES
2900     * @see #GET_GIDS
2901     * @see #GET_CONFIGURATIONS
2902     * @see #GET_INSTRUMENTATION
2903     * @see #GET_PERMISSIONS
2904     * @see #GET_PROVIDERS
2905     * @see #GET_RECEIVERS
2906     * @see #GET_SERVICES
2907     * @see #GET_SIGNATURES
2908     */
2909    public abstract List<PackageInfo> getPreferredPackages(int flags);
2910
2911    /**
2912     * @deprecated This is a protected API that should not have been available
2913     * to third party applications.  It is the platform's responsibility for
2914     * assigning preferred activities and this can not be directly modified.
2915     *
2916     * Add a new preferred activity mapping to the system.  This will be used
2917     * to automatically select the given activity component when
2918     * {@link Context#startActivity(Intent) Context.startActivity()} finds
2919     * multiple matching activities and also matches the given filter.
2920     *
2921     * @param filter The set of intents under which this activity will be
2922     * made preferred.
2923     * @param match The IntentFilter match category that this preference
2924     * applies to.
2925     * @param set The set of activities that the user was picking from when
2926     * this preference was made.
2927     * @param activity The component name of the activity that is to be
2928     * preferred.
2929     */
2930    @Deprecated
2931    public abstract void addPreferredActivity(IntentFilter filter, int match,
2932            ComponentName[] set, ComponentName activity);
2933
2934    /**
2935     * Same as {@link #addPreferredActivity(IntentFilter, int,
2936            ComponentName[], ComponentName)}, but with a specific userId to apply the preference
2937            to.
2938     * @hide
2939     */
2940    public void addPreferredActivity(IntentFilter filter, int match,
2941            ComponentName[] set, ComponentName activity, int userId) {
2942        throw new RuntimeException("Not implemented. Must override in a subclass.");
2943    }
2944
2945    /**
2946     * @deprecated This is a protected API that should not have been available
2947     * to third party applications.  It is the platform's responsibility for
2948     * assigning preferred activities and this can not be directly modified.
2949     *
2950     * Replaces an existing preferred activity mapping to the system, and if that were not present
2951     * adds a new preferred activity.  This will be used
2952     * to automatically select the given activity component when
2953     * {@link Context#startActivity(Intent) Context.startActivity()} finds
2954     * multiple matching activities and also matches the given filter.
2955     *
2956     * @param filter The set of intents under which this activity will be
2957     * made preferred.
2958     * @param match The IntentFilter match category that this preference
2959     * applies to.
2960     * @param set The set of activities that the user was picking from when
2961     * this preference was made.
2962     * @param activity The component name of the activity that is to be
2963     * preferred.
2964     * @hide
2965     */
2966    @Deprecated
2967    public abstract void replacePreferredActivity(IntentFilter filter, int match,
2968            ComponentName[] set, ComponentName activity);
2969
2970    /**
2971     * Remove all preferred activity mappings, previously added with
2972     * {@link #addPreferredActivity}, from the
2973     * system whose activities are implemented in the given package name.
2974     * An application can only clear its own package(s).
2975     *
2976     * @param packageName The name of the package whose preferred activity
2977     * mappings are to be removed.
2978     */
2979    public abstract void clearPackagePreferredActivities(String packageName);
2980
2981    /**
2982     * Retrieve all preferred activities, previously added with
2983     * {@link #addPreferredActivity}, that are
2984     * currently registered with the system.
2985     *
2986     * @param outFilters A list in which to place the filters of all of the
2987     * preferred activities, or null for none.
2988     * @param outActivities A list in which to place the component names of
2989     * all of the preferred activities, or null for none.
2990     * @param packageName An option package in which you would like to limit
2991     * the list.  If null, all activities will be returned; if non-null, only
2992     * those activities in the given package are returned.
2993     *
2994     * @return Returns the total number of registered preferred activities
2995     * (the number of distinct IntentFilter records, not the number of unique
2996     * activity components) that were found.
2997     */
2998    public abstract int getPreferredActivities(List<IntentFilter> outFilters,
2999            List<ComponentName> outActivities, String packageName);
3000
3001    /**
3002     * Set the enabled setting for a package component (activity, receiver, service, provider).
3003     * This setting will override any enabled state which may have been set by the component in its
3004     * manifest.
3005     *
3006     * @param componentName The component to enable
3007     * @param newState The new enabled state for the component.  The legal values for this state
3008     *                 are:
3009     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
3010     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
3011     *                   and
3012     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
3013     *                 The last one removes the setting, thereby restoring the component's state to
3014     *                 whatever was set in it's manifest (or enabled, by default).
3015     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
3016     */
3017    public abstract void setComponentEnabledSetting(ComponentName componentName,
3018            int newState, int flags);
3019
3020
3021    /**
3022     * Return the the enabled setting for a package component (activity,
3023     * receiver, service, provider).  This returns the last value set by
3024     * {@link #setComponentEnabledSetting(ComponentName, int, int)}; in most
3025     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
3026     * the value originally specified in the manifest has not been modified.
3027     *
3028     * @param componentName The component to retrieve.
3029     * @return Returns the current enabled state for the component.  May
3030     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
3031     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
3032     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
3033     * component's enabled state is based on the original information in
3034     * the manifest as found in {@link ComponentInfo}.
3035     */
3036    public abstract int getComponentEnabledSetting(ComponentName componentName);
3037
3038    /**
3039     * Set the enabled setting for an application
3040     * This setting will override any enabled state which may have been set by the application in
3041     * its manifest.  It also overrides the enabled state set in the manifest for any of the
3042     * application's components.  It does not override any enabled state set by
3043     * {@link #setComponentEnabledSetting} for any of the application's components.
3044     *
3045     * @param packageName The package name of the application to enable
3046     * @param newState The new enabled state for the component.  The legal values for this state
3047     *                 are:
3048     *                   {@link #COMPONENT_ENABLED_STATE_ENABLED},
3049     *                   {@link #COMPONENT_ENABLED_STATE_DISABLED}
3050     *                   and
3051     *                   {@link #COMPONENT_ENABLED_STATE_DEFAULT}
3052     *                 The last one removes the setting, thereby restoring the applications's state to
3053     *                 whatever was set in its manifest (or enabled, by default).
3054     * @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
3055     */
3056    public abstract void setApplicationEnabledSetting(String packageName,
3057            int newState, int flags);
3058
3059    /**
3060     * Return the the enabled setting for an application.  This returns
3061     * the last value set by
3062     * {@link #setApplicationEnabledSetting(String, int, int)}; in most
3063     * cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
3064     * the value originally specified in the manifest has not been modified.
3065     *
3066     * @param packageName The component to retrieve.
3067     * @return Returns the current enabled state for the component.  May
3068     * be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
3069     * {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
3070     * {@link #COMPONENT_ENABLED_STATE_DEFAULT}.  The last one means the
3071     * application's enabled state is based on the original information in
3072     * the manifest as found in {@link ComponentInfo}.
3073     * @throws IllegalArgumentException if the named package does not exist.
3074     */
3075    public abstract int getApplicationEnabledSetting(String packageName);
3076
3077    /**
3078     * Return whether the device has been booted into safe mode.
3079     */
3080    public abstract boolean isSafeMode();
3081
3082    /**
3083     * Attempts to move package resources from internal to external media or vice versa.
3084     * Since this may take a little while, the result will
3085     * be posted back to the given observer.   This call may fail if the calling context
3086     * lacks the {@link android.Manifest.permission#MOVE_PACKAGE} permission, if the
3087     * named package cannot be found, or if the named package is a "system package".
3088     *
3089     * @param packageName The name of the package to delete
3090     * @param observer An observer callback to get notified when the package move is
3091     * complete. {@link android.content.pm.IPackageMoveObserver#packageMoved(boolean)} will be
3092     * called when that happens.  observer may be null to indicate that no callback is desired.
3093     * @param flags To indicate install location {@link #MOVE_INTERNAL} or
3094     * {@link #MOVE_EXTERNAL_MEDIA}
3095     *
3096     * @hide
3097     */
3098    public abstract void movePackage(
3099            String packageName, IPackageMoveObserver observer, int flags);
3100
3101    /**
3102     * Returns the device identity that verifiers can use to associate their scheme to a particular
3103     * device. This should not be used by anything other than a package verifier.
3104     *
3105     * @return identity that uniquely identifies current device
3106     * @hide
3107     */
3108    public abstract VerifierDeviceIdentity getVerifierDeviceIdentity();
3109
3110    /**
3111     * Returns the data directory for a particular user and package, given the uid of the package.
3112     * @param uid uid of the package, including the userId and appId
3113     * @param packageName name of the package
3114     * @return the user-specific data directory for the package
3115     * @hide
3116     */
3117    public static String getDataDirForUser(int userId, String packageName) {
3118        // TODO: This should be shared with Installer's knowledge of user directory
3119        return Environment.getDataDirectory().toString() + "/user/" + userId
3120                + "/" + packageName;
3121    }
3122}
3123