PackageManager

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/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package android.content.pm;

import android.annotation.SdkConstant;
import android.annotation.SdkConstant.SdkConstantType;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.IntentSender;
import android.content.res.Resources;
import android.content.res.XmlResourceParser;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Environment;
import android.os.StatFs;
import android.util.AndroidException;
import android.util.DisplayMetrics;

import java.io.File;
import java.util.List;

/**
* Class for retrieving various kinds of information related to the application
* packages that are currently installed on the device.
*
* You can find this class through {@link Context#getPackageManager}.
*/
public abstract class PackageManager {

/**
* This exception is thrown when a given package, application, or component
* name can not be found.
*/
public static class NameNotFoundException extends AndroidException {
public NameNotFoundException() {
}

public NameNotFoundException(String name) {
super(name);
}
}

/**
* {@link PackageInfo} flag: return information about
* activities in the package in {@link PackageInfo#activities}.
*/
public static final int GET_ACTIVITIES = 0x00000001;

/**
* {@link PackageInfo} flag: return information about
* intent receivers in the package in
* {@link PackageInfo#receivers}.
*/
public static final int GET_RECEIVERS = 0x00000002;

/**
* {@link PackageInfo} flag: return information about
* services in the package in {@link PackageInfo#services}.
*/
public static final int GET_SERVICES = 0x00000004;

/**
* {@link PackageInfo} flag: return information about
* content providers in the package in
* {@link PackageInfo#providers}.
*/
public static final int GET_PROVIDERS = 0x00000008;

/**
* {@link PackageInfo} flag: return information about
* instrumentation in the package in
* {@link PackageInfo#instrumentation}.
*/
public static final int GET_INSTRUMENTATION = 0x00000010;

/**
* {@link PackageInfo} flag: return information about the
* intent filters supported by the activity.
*/
public static final int GET_INTENT_FILTERS = 0x00000020;

/**
* {@link PackageInfo} flag: return information about the
* signatures included in the package.
*/
public static final int GET_SIGNATURES = 0x00000040;

/**
* {@link ResolveInfo} flag: return the IntentFilter that
* was matched for a particular ResolveInfo in
* {@link ResolveInfo#filter}.
*/
public static final int GET_RESOLVED_FILTER = 0x00000040;

/**
* {@link ComponentInfo} flag: return the {@link ComponentInfo#metaData}
* data {@link android.os.Bundle}s that are associated with a component.
* This applies for any API returning a ComponentInfo subclass.
*/
public static final int GET_META_DATA = http://www.mamicode.com/0x00000080;

/**
* {@link PackageInfo} flag: return the
* {@link PackageInfo#gids group ids} that are associated with an
* application.
* This applies for any API returning an PackageInfo class, either
* directly or nested inside of another.
*/
public static final int GET_GIDS = 0x00000100;

/**
* {@link PackageInfo} flag: include disabled components in the returned info.
*/
public static final int GET_DISABLED_COMPONENTS = 0x00000200;

/**
* {@link ApplicationInfo} flag: return the
* {@link ApplicationInfo#sharedLibraryFiles paths to the shared libraries}
* that are associated with an application.
* This applies for any API returning an ApplicationInfo class, either
* directly or nested inside of another.
*/
public static final int GET_SHARED_LIBRARY_FILES = 0x00000400;

/**
* {@link ProviderInfo} flag: return the
* {@link ProviderInfo#uriPermissionPatterns URI permission patterns}
* that are associated with a content provider.
* This applies for any API returning an ProviderInfo class, either
* directly or nested inside of another.
*/
public static final int GET_URI_PERMISSION_PATTERNS = 0x00000800;
/**
* {@link PackageInfo} flag: return information about
* permissions in the package in
* {@link PackageInfo#permissions}.
*/
public static final int GET_PERMISSIONS = 0x00001000;

/**
* Flag parameter to retrieve all applications(even uninstalled ones) with data directories.
* This state could have resulted if applications have been deleted with flag
* DONT_DELETE_DATA
* with a possibility of being replaced or reinstalled in future
*/
public static final int GET_UNINSTALLED_PACKAGES = 0x00002000;

/**
* {@link PackageInfo} flag: return information about
* hardware preferences in
* {@link PackageInfo#configPreferences PackageInfo.configPreferences} and
* requested features in {@link PackageInfo#reqFeatures
* PackageInfo.reqFeatures}.
*/
public static final int GET_CONFIGURATIONS = 0x00004000;

/**
* Resolution and querying flag: if set, only filters that support the
* {@link android.content.Intent#CATEGORY_DEFAULT} will be considered for
* matching. This is a synonym for including the CATEGORY_DEFAULT in your
* supplied Intent.
*/
public static final int MATCH_DEFAULT_ONLY = 0x00010000;

/**
* Permission check result: this is returned by {@link #checkPermission}
* if the permission has been granted to the given package.
*/
public static final int PERMISSION_GRANTED = 0;

/**
* Permission check result: this is returned by {@link #checkPermission}
* if the permission has not been granted to the given package.
*/
public static final int PERMISSION_DENIED = -1;

/**
* Signature check result: this is returned by {@link #checkSignatures}
* if the two packages have a matching signature.
*/
public static final int SIGNATURE_MATCH = 0;

/**
* Signature check result: this is returned by {@link #checkSignatures}
* if neither of the two packages is signed.
*/
public static final int SIGNATURE_NEITHER_SIGNED = 1;

/**
* Signature check result: this is returned by {@link #checkSignatures}
* if the first package is not signed, but the second is.
*/
public static final int SIGNATURE_FIRST_NOT_SIGNED = -1;

/**
* Signature check result: this is returned by {@link #checkSignatures}
* if the second package is not signed, but the first is.
*/
public static final int SIGNATURE_SECOND_NOT_SIGNED = -2;

/**
* Signature check result: this is returned by {@link #checkSignatures}
* if both packages are signed but there is no matching signature.
*/
public static final int SIGNATURE_NO_MATCH = -3;

/**
* Signature check result: this is returned by {@link #checkSignatures}
* if either of the given package names are not valid.
*/
public static final int SIGNATURE_UNKNOWN_PACKAGE = -4;

public static final int COMPONENT_ENABLED_STATE_DEFAULT = 0;
public static final int COMPONENT_ENABLED_STATE_ENABLED = 1;
public static final int COMPONENT_ENABLED_STATE_DISABLED = 2;

/**
* Flag parameter for {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} to
* indicate that this package should be installed as forward locked, i.e. only the app itself
* should have access to its code and non-resource assets.
* @hide
*/
public static final int INSTALL_FORWARD_LOCK = 0x00000001;

/**
* Flag parameter for {@link #installPackage} to indicate that you want to replace an already
* installed package, if one exists.
* @hide
*/
public static final int INSTALL_REPLACE_EXISTING = 0x00000002;

/**
* Flag parameter for {@link #installPackage} to indicate that you want to
* allow test packages (those that have set android:testOnly in their
* manifest) to be installed.
* @hide
*/
public static final int INSTALL_ALLOW_TEST = 0x00000004;

/**
* Flag parameter for {@link #installPackage} to indicate that this
* package has to be installed on the sdcard.
* @hide
*/
public static final int INSTALL_EXTERNAL = 0x00000008;

/**
* Flag parameter for {@link #installPackage} to indicate that this
* package has to be installed on the sdcard.
* @hide
*/
public static final int INSTALL_INTERNAL = 0x00000010;

/**
* Flag parameter for
* {@link #setComponentEnabledSetting(android.content.ComponentName, int, int)} to indicate
* that you don‘t want to kill the app containing the component. Be careful when you set this
* since changing component states can make the containing application‘s behavior unpredictable.
*/
public static final int DONT_KILL_APP = 0x00000001;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} on success.
* @hide
*/
public static final int INSTALL_SUCCEEDED = 1;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package is
* already installed.
* @hide
*/
public static final int INSTALL_FAILED_ALREADY_EXISTS = -1;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package archive
* file is invalid.
* @hide
*/
public static final int INSTALL_FAILED_INVALID_APK = -2;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the URI passed in
* is invalid.
* @hide
*/
public static final int INSTALL_FAILED_INVALID_URI = -3;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if the package manager
* service found that the device didn‘t have enough storage space to install the app.
* @hide
*/
public static final int INSTALL_FAILED_INSUFFICIENT_STORAGE = -4;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if a
* package is already installed with the same name.
* @hide
*/
public static final int INSTALL_FAILED_DUPLICATE_PACKAGE = -5;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the requested shared user does not exist.
* @hide
*/
public static final int INSTALL_FAILED_NO_SHARED_USER = -6;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* a previously installed package of the same name has a different signature
* than the new package (and the old package‘s data was not removed).
* @hide
*/
public static final int INSTALL_FAILED_UPDATE_INCOMPATIBLE = -7;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package is requested a shared user which is already installed on the
* device and does not have matching signature.
* @hide
*/
public static final int INSTALL_FAILED_SHARED_USER_INCOMPATIBLE = -8;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package uses a shared library that is not available.
* @hide
*/
public static final int INSTALL_FAILED_MISSING_SHARED_LIBRARY = -9;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package uses a shared library that is not available.
* @hide
*/
public static final int INSTALL_FAILED_REPLACE_COULDNT_DELETE = -10;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package failed while optimizing and validating its dex files,
* either because there was not enough storage or the validation failed.
* @hide
*/
public static final int INSTALL_FAILED_DEXOPT = -11;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package failed because the current SDK version is older than
* that required by the package.
* @hide
*/
public static final int INSTALL_FAILED_OLDER_SDK = -12;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package failed because it contains a content provider with the
* same authority as a provider already installed in the system.
* @hide
*/
public static final int INSTALL_FAILED_CONFLICTING_PROVIDER = -13;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package failed because the current SDK version is newer than
* that required by the package.
* @hide
*/
public static final int INSTALL_FAILED_NEWER_SDK = -14;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package failed because it has specified that it is a test-only
* package and the caller has not supplied the {@link #INSTALL_ALLOW_TEST}
* flag.
* @hide
*/
public static final int INSTALL_FAILED_TEST_ONLY = -15;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the package being installed contains native code, but none that is
* compatible with the the device‘s CPU_ABI.
* @hide
*/
public static final int INSTALL_FAILED_CPU_ABI_INCOMPATIBLE = -16;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package uses a feature that is not available.
* @hide
*/
public static final int INSTALL_FAILED_MISSING_FEATURE = -17;

// ------ Errors related to sdcard
/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* a secure container mount point couldn‘t be accessed on external media.
* @hide
*/
public static final int INSTALL_FAILED_CONTAINER_ERROR = -18;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package couldn‘t be installed in the specified install
* location.
* @hide
*/
public static final int INSTALL_FAILED_INVALID_INSTALL_LOCATION = -19;

/**
* Installation return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
* the new package couldn‘t be installed in the specified install
* location because the media is not available.
* @hide
*/
public static final int INSTALL_FAILED_MEDIA_UNAVAILABLE = -20;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser was given a path that is not a file, or does not end with the expected
* ‘.apk‘ extension.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_NOT_APK = -100;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser was unable to retrieve the AndroidManifest.xml file.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_BAD_MANIFEST = -101;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser encountered an unexpected exception.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION = -102;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser did not find any certificates in the .apk.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_NO_CERTIFICATES = -103;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser found inconsistent certificates on the files in the .apk.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES = -104;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser encountered a CertificateEncodingException in one of the
* files in the .apk.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_CERTIFICATE_ENCODING = -105;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser encountered a bad or missing package name in the manifest.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_BAD_PACKAGE_NAME = -106;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser encountered a bad shared user id name in the manifest.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_BAD_SHARED_USER_ID = -107;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser encountered some structural problem in the manifest.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_MANIFEST_MALFORMED = -108;

/**
* Installation parse return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the parser did not find any actionable tags (instrumentation or application)
* in the manifest.
* @hide
*/
public static final int INSTALL_PARSE_FAILED_MANIFEST_EMPTY = -109;

/**
* Installation failed return code: this is passed to the {@link IPackageInstallObserver} by
* {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)}
* if the system failed to install the package because of system issues.
* @hide
*/
public static final int INSTALL_FAILED_INTERNAL_ERROR = -110;

/**
* Flag parameter for {@link #deletePackage} to indicate that you don‘t want to delete the
* package‘s data directory.
*
* @hide
*/
public static final int DONT_DELETE_DATA = http://www.mamicode.com/0x00000001;

/**
* Return code that is passed to the {@link IPackageMoveObserver} by
* {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
* when the package has been successfully moved by the system.
* @hide
*/
public static final int MOVE_SUCCEEDED = 1;
/**
* Error code that is passed to the {@link IPackageMoveObserver} by
* {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
* when the package hasn‘t been successfully moved by the system
* because of insufficient memory on specified media.
* @hide
*/
public static final int MOVE_FAILED_INSUFFICIENT_STORAGE = -1;

/**
* Error code that is passed to the {@link IPackageMoveObserver} by
* {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
* if the specified package doesn‘t exist.
* @hide
*/
public static final int MOVE_FAILED_DOESNT_EXIST = -2;

/**
* Error code that is passed to the {@link IPackageMoveObserver} by
* {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
* if the specified package cannot be moved since its a system package.
* @hide
*/
public static final int MOVE_FAILED_SYSTEM_PACKAGE = -3;

/**
* Error code that is passed to the {@link IPackageMoveObserver} by
* {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
* if the specified package cannot be moved since its forward locked.
* @hide
*/
public static final int MOVE_FAILED_FORWARD_LOCKED = -4;

/**
* Error code that is passed to the {@link IPackageMoveObserver} by
* {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
* if the specified package cannot be moved to the specified location.
* @hide
*/
public static final int MOVE_FAILED_INVALID_LOCATION = -5;

/**
* Error code that is passed to the {@link IPackageMoveObserver} by
* {@link #movePackage(android.net.Uri, IPackageMoveObserver)}
* if the specified package cannot be moved to the specified location.
* @hide
*/
public static final int MOVE_FAILED_INTERNAL_ERROR = -6;

/**
* Flag parameter for {@link #movePackage} to indicate that
* the package should be moved to internal storage if its
* been installed on external media.
* @hide
*/
public static final int MOVE_INTERNAL = 0x00000001;

/**
* Flag parameter for {@link #movePackage} to indicate that
* the package should be moved to external media.
* @hide
*/
public static final int MOVE_EXTERNAL_MEDIA = 0x00000002;

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device is capable of communicating with
* other devices via Bluetooth.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_BLUETOOTH = "android.hardware.bluetooth";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device has a camera facing away
* from the screen.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_CAMERA = "android.hardware.camera";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device‘s camera supports auto-focus.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_CAMERA_AUTOFOCUS = "android.hardware.camera.autofocus";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device‘s camera supports flash.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_CAMERA_FLASH = "android.hardware.camera.flash";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device supports one or more methods of
* reporting current location.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_LOCATION = "android.hardware.location";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device has a Global Positioning System
* receiver and can report precise location.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_LOCATION_GPS = "android.hardware.location.gps";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device can report location with coarse
* accuracy using a network-based geolocation system.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_LOCATION_NETWORK = "android.hardware.location.network";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device can record audio via a
* microphone.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_MICROPHONE = "android.hardware.microphone";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device includes a magnetometer (compass).
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_SENSOR_COMPASS = "android.hardware.sensor.compass";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device includes an accelerometer.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_SENSOR_ACCELEROMETER = "android.hardware.sensor.accelerometer";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device includes a light sensor.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_SENSOR_LIGHT = "android.hardware.sensor.light";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device includes a proximity sensor.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_SENSOR_PROXIMITY = "android.hardware.sensor.proximity";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device has a telephony radio with data
* communication support.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_TELEPHONY = "android.hardware.telephony";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device has a CDMA telephony stack.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_TELEPHONY_CDMA = "android.hardware.telephony.cdma";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device has a GSM telephony stack.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_TELEPHONY_GSM = "android.hardware.telephony.gsm";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device‘s display has a touch screen.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_TOUCHSCREEN = "android.hardware.touchscreen";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device‘s touch screen supports
* multitouch sufficient for basic two-finger gesture detection.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_TOUCHSCREEN_MULTITOUCH = "android.hardware.touchscreen.multitouch";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device‘s touch screen is capable of
* tracking two or more fingers fully independently.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT = "android.hardware.touchscreen.multitouch.distinct";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device supports live wallpapers.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_LIVE_WALLPAPER = "android.software.live_wallpaper";

/**
* Feature for {@link #getSystemAvailableFeatures} and
* {@link #hasSystemFeature}: The device supports WiFi (802.11) networking.
*/
@SdkConstant(SdkConstantType.FEATURE)
public static final String FEATURE_WIFI = "android.hardware.wifi";

/**
* Action to external storage service to clean out removed apps.
* @hide
*/
public static final String ACTION_CLEAN_EXTERNAL_STORAGE
= "android.content.pm.CLEAN_EXTERNAL_STORAGE";

/**
* Retrieve overall information about an application package that is
* installed on the system.
*
* Throws {@link NameNotFoundException} if a package with the given
* name can not be found on the system.
*
* @param packageName The full name (i.e. com.google.apps.contacts) of the
* desired package.

* @param flags Additional option flags. Use any combination of
* {@link #GET_ACTIVITIES},
* {@link #GET_GIDS},
* {@link #GET_CONFIGURATIONS},
* {@link #GET_INSTRUMENTATION},
* {@link #GET_PERMISSIONS},
* {@link #GET_PROVIDERS},
* {@link #GET_RECEIVERS},
* {@link #GET_SERVICES},
* {@link #GET_SIGNATURES},
* {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
*
* @return Returns a PackageInfo object containing information about the package.
* If flag GET_UNINSTALLED_PACKAGES is set and if the package is not
* found in the list of installed applications, the package information is
* retrieved from the list of uninstalled applications(which includes
* installed applications as well as applications
* with data directory ie applications which had been
* deleted with DONT_DELTE_DATA flag set).
*
* @see #GET_ACTIVITIES
* @see #GET_GIDS
* @see #GET_CONFIGURATIONS
* @see #GET_INSTRUMENTATION
* @see #GET_PERMISSIONS
* @see #GET_PROVIDERS
* @see #GET_RECEIVERS
* @see #GET_SERVICES
* @see #GET_SIGNATURES
* @see #GET_UNINSTALLED_PACKAGES
*
*/
public abstract PackageInfo getPackageInfo(String packageName, int flags)
throws NameNotFoundException;

/**
* Map from the current package names in use on the device to whatever
* the current canonical name of that package is.
* @param names Array of current names to be mapped.
* @return Returns an array of the same size as the original, containing
* the canonical name for each package.
*/
public abstract String[] currentToCanonicalPackageNames(String[] names);

/**
* Map from a packages canonical name to the current name in use on the device.
* @param names Array of new names to be mapped.
* @return Returns an array of the same size as the original, containing
* the current name for each package.
*/
public abstract String[] canonicalToCurrentPackageNames(String[] names);

/**
* Return a "good" intent to launch a front-door activity in a package,
* for use for example to implement an "open" button when browsing through
* packages. The current implementation will look first for a main
* activity in the category {@link Intent#CATEGORY_INFO}, next for a
* main activity in the category {@link Intent#CATEGORY_LAUNCHER}, or return
* null if neither are found.
*
* Throws {@link NameNotFoundException} if a package with the given
* name can not be found on the system.
*
* @param packageName The name of the package to inspect.
*
* @return Returns either a fully-qualified Intent that can be used to
* launch the main activity in the package, or null if the package does
* not contain such an activity.
*/
public abstract Intent getLaunchIntentForPackage(String packageName);

/**
* Return an array of all of the secondary group-ids that have been
* assigned to a package.
*
* Throws {@link NameNotFoundException} if a package with the given
* name can not be found on the system.
*
* @param packageName The full name (i.e. com.google.apps.contacts) of the
* desired package.
*
* @return Returns an int array of the assigned gids, or null if there
* are none.
*/
public abstract int[] getPackageGids(String packageName)
throws NameNotFoundException;

/**
* Retrieve all of the information we know about a particular permission.
*
* Throws {@link NameNotFoundException} if a permission with the given
* name can not be found on the system.
*
* @param name The fully qualified name (i.e. com.google.permission.LOGIN)
* of the permission you are interested in.
* @param flags Additional option flags. Use {@link #GET_META_DATA} to
* retrieve any meta-data associated with the permission.
*
* @return Returns a {@link PermissionInfo} containing information about the
* permission.
*/
public abstract PermissionInfo getPermissionInfo(String name, int flags)
throws NameNotFoundException;

/**
* Query for all of the permissions associated with a particular group.
*
* Throws {@link NameNotFoundException} if the given group does not
* exist.
*
* @param group The fully qualified name (i.e. com.google.permission.LOGIN)
* of the permission group you are interested in. Use null to
* find all of the permissions not associated with a group.
* @param flags Additional option flags. Use {@link #GET_META_DATA} to
* retrieve any meta-data associated with the permissions.
*
* @return Returns a list of {@link PermissionInfo} containing information
* about all of the permissions in the given group.
*/
public abstract List<PermissionInfo> queryPermissionsByGroup(String group,
int flags) throws NameNotFoundException;

/**
* Retrieve all of the information we know about a particular group of
* permissions.
*
* Throws {@link NameNotFoundException} if a permission group with the given
* name can not be found on the system.
*
* @param name The fully qualified name (i.e. com.google.permission_group.APPS)
* of the permission you are interested in.
* @param flags Additional option flags. Use {@link #GET_META_DATA} to
* retrieve any meta-data associated with the permission group.
*
* @return Returns a {@link PermissionGroupInfo} containing information
* about the permission.
*/
public abstract PermissionGroupInfo getPermissionGroupInfo(String name,
int flags) throws NameNotFoundException;

/**
* Retrieve all of the known permission groups in the system.
*
* @param flags Additional option flags. Use {@link #GET_META_DATA} to
* retrieve any meta-data associated with the permission group.
*
* @return Returns a list of {@link PermissionGroupInfo} containing
* information about all of the known permission groups.
*/
public abstract List<PermissionGroupInfo> getAllPermissionGroups(int flags);

/**
* Retrieve all of the information we know about a particular
* package/application.
*
* Throws {@link NameNotFoundException} if an application with the given
* package name can not be found on the system.
*
* @param packageName The full name (i.e. com.google.apps.contacts) of an
* application.
* @param flags Additional option flags. Use any combination of
* {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
* {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
*
* @return {@link ApplicationInfo} Returns ApplicationInfo object containing
* information about the package.
* If flag GET_UNINSTALLED_PACKAGES is set and if the package is not
* found in the list of installed applications,
* the application information is retrieved from the
* list of uninstalled applications(which includes
* installed applications as well as applications
* with data directory ie applications which had been
* deleted with DONT_DELTE_DATA flag set).
*
* @see #GET_META_DATA
* @see #GET_SHARED_LIBRARY_FILES
* @see #GET_UNINSTALLED_PACKAGES
*/
public abstract ApplicationInfo getApplicationInfo(String packageName,
int flags) throws NameNotFoundException;

/**
* Retrieve all of the information we know about a particular activity
* class.
*
* Throws {@link NameNotFoundException} if an activity with the given
* class name can not be found on the system.
*
* @param className The full name (i.e.
* com.google.apps.contacts.ContactsList) of an Activity
* class.
* @param flags Additional option flags. Use any combination of
* {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
* to modify the data (in ApplicationInfo) returned.
*
* @return {@link ActivityInfo} containing information about the activity.
*
* @see #GET_INTENT_FILTERS
* @see #GET_META_DATA
* @see #GET_SHARED_LIBRARY_FILES
*/
public abstract ActivityInfo getActivityInfo(ComponentName className,
int flags) throws NameNotFoundException;

/**
* Retrieve all of the information we know about a particular receiver
* class.
*
* Throws {@link NameNotFoundException} if a receiver with the given
* class name can not be found on the system.
*
* @param className The full name (i.e.
* com.google.apps.contacts.CalendarAlarm) of a Receiver
* class.
* @param flags Additional option flags. Use any combination of
* {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
* to modify the data returned.
*
* @return {@link ActivityInfo} containing information about the receiver.
*
* @see #GET_INTENT_FILTERS
* @see #GET_META_DATA
* @see #GET_SHARED_LIBRARY_FILES
*/
public abstract ActivityInfo getReceiverInfo(ComponentName className,
int flags) throws NameNotFoundException;

/**
* Retrieve all of the information we know about a particular service
* class.
*
* Throws {@link NameNotFoundException} if a service with the given
* class name can not be found on the system.
*
* @param className The full name (i.e.
* com.google.apps.media.BackgroundPlayback) of a Service
* class.
* @param flags Additional option flags. Use any combination of
* {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
* to modify the data returned.
*
* @return ServiceInfo containing information about the service.
*
* @see #GET_META_DATA
* @see #GET_SHARED_LIBRARY_FILES
*/
public abstract ServiceInfo getServiceInfo(ComponentName className,
int flags) throws NameNotFoundException;

/**
* Return a List of all packages that are installed
* on the device.
*
* @param flags Additional option flags. Use any combination of
* {@link #GET_ACTIVITIES},
* {@link #GET_GIDS},
* {@link #GET_CONFIGURATIONS},
* {@link #GET_INSTRUMENTATION},
* {@link #GET_PERMISSIONS},
* {@link #GET_PROVIDERS},
* {@link #GET_RECEIVERS},
* {@link #GET_SERVICES},
* {@link #GET_SIGNATURES},
* {@link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
*
* @return A List of PackageInfo objects, one for each package that is
* installed on the device. In the unlikely case of there being no
* installed packages, an empty list is returned.
* If flag GET_UNINSTALLED_PACKAGES is set, a list of all
* applications including those deleted with DONT_DELETE_DATA
* (partially installed apps with data directory) will be returned.
*
* @see #GET_ACTIVITIES
* @see #GET_GIDS
* @see #GET_CONFIGURATIONS
* @see #GET_INSTRUMENTATION
* @see #GET_PERMISSIONS
* @see #GET_PROVIDERS
* @see #GET_RECEIVERS
* @see #GET_SERVICES
* @see #GET_SIGNATURES
* @see #GET_UNINSTALLED_PACKAGES
*
*/
public abstract List<PackageInfo> getInstalledPackages(int flags);

/**
* Check whether a particular package has been granted a particular
* permission.
*
* @param permName The name of the permission you are checking for,
* @param pkgName The name of the package you are checking against.
*
* @return If the package has the permission, PERMISSION_GRANTED is
* returned. If it does not have the permission, PERMISSION_DENIED
* is returned.
*
* @see #PERMISSION_GRANTED
* @see #PERMISSION_DENIED
*/
public abstract int checkPermission(String permName, String pkgName);

/**
* Add a new dynamic permission to the system. For this to work, your
* package must have defined a permission tree through the
* {@link android.R.styleable#AndroidManifestPermissionTree
* <permission-tree>} tag in its manifest. A package can only add
* permissions to trees that were defined by either its own package or
* another with the same user id; a permission is in a tree if it
* matches the name of the permission tree + ".": for example,
* "com.foo.bar" is a member of the permission tree "com.foo".
*
* It is good to make your permission tree name descriptive, because you
* are taking possession of that entire set of permission names. Thus, it
* must be under a domain you control, with a suffix that will not match
* any normal permissions that may be declared in any applications that
* are part of that domain.
*
* New permissions must be added before
* any .apks are installed that use those permissions. Permissions you
* add through this method are remembered across reboots of the device.
* If the given permission already exists, the info you supply here
* will be used to update it.
*
* @param info Description of the permission to be added.
*
* @return Returns true if a new permission was created, false if an
* existing one was updated.
*
* @throws SecurityException if you are not allowed to add the
* given permission name.
*
* @see #removePermission(String)
*/
public abstract boolean addPermission(PermissionInfo info);

/**
* Like {@link #addPermission(PermissionInfo)} but asynchronously
* persists the package manager state after returning from the call,
* allowing it to return quicker and batch a series of adds at the
* expense of no guarantee the added permission will be retained if
* the device is rebooted before it is written.
*/
public abstract boolean addPermissionAsync(PermissionInfo info);

/**
* Removes a permission that was previously added with
* {@link #addPermission(PermissionInfo)}. The same ownership rules apply
* -- you are only allowed to remove permissions that you are allowed
* to add.
*
* @param name The name of the permission to remove.
*
* @throws SecurityException if you are not allowed to remove the
* given permission name.
*
* @see #addPermission(PermissionInfo)
*/
public abstract void removePermission(String name);

/**
* Compare the signatures of two packages to determine if the same
* signature appears in both of them. If they do contain the same
* signature, then they are allowed special privileges when working
* with each other: they can share the same user-id, run instrumentation
* against each other, etc.
*
* @param pkg1 First package name whose signature will be compared.
* @param pkg2 Second package name whose signature will be compared.
* @return Returns an integer indicating whether there is a matching
* signature: the value is >= 0 if there is a match (or neither package
* is signed), or < 0 if there is not a match. The match result can be
* further distinguished with the success (>= 0) constants
* {@link #SIGNATURE_MATCH}, {@link #SIGNATURE_NEITHER_SIGNED}; or
* failure (< 0) constants {@link #SIGNATURE_FIRST_NOT_SIGNED},
* {@link #SIGNATURE_SECOND_NOT_SIGNED}, {@link #SIGNATURE_NO_MATCH},
* or {@link #SIGNATURE_UNKNOWN_PACKAGE}.
*
* @see #checkSignatures(int, int)
* @see #SIGNATURE_MATCH
* @see #SIGNATURE_NEITHER_SIGNED
* @see #SIGNATURE_FIRST_NOT_SIGNED
* @see #SIGNATURE_SECOND_NOT_SIGNED
* @see #SIGNATURE_NO_MATCH
* @see #SIGNATURE_UNKNOWN_PACKAGE
*/
public abstract int checkSignatures(String pkg1, String pkg2);

/**
* Like {@link #checkSignatures(String, String)}, but takes UIDs of
* the two packages to be checked. This can be useful, for example,
* when doing the check in an IPC, where the UID is the only identity
* available. It is functionally identical to determining the package
* associated with the UIDs and checking their signatures.
*
* @param uid1 First UID whose signature will be compared.
* @param uid2 Second UID whose signature will be compared.
* @return Returns an integer indicating whether there is a matching
* signature: the value is >= 0 if there is a match (or neither package
* is signed), or < 0 if there is not a match. The match result can be
* further distinguished with the success (>= 0) constants
* {@link #SIGNATURE_MATCH}, {@link #SIGNATURE_NEITHER_SIGNED}; or
* failure (< 0) constants {@link #SIGNATURE_FIRST_NOT_SIGNED},
* {@link #SIGNATURE_SECOND_NOT_SIGNED}, {@link #SIGNATURE_NO_MATCH},
* or {@link #SIGNATURE_UNKNOWN_PACKAGE}.
*
* @see #checkSignatures(int, int)
* @see #SIGNATURE_MATCH
* @see #SIGNATURE_NEITHER_SIGNED
* @see #SIGNATURE_FIRST_NOT_SIGNED
* @see #SIGNATURE_SECOND_NOT_SIGNED
* @see #SIGNATURE_NO_MATCH
* @see #SIGNATURE_UNKNOWN_PACKAGE
*/
public abstract int checkSignatures(int uid1, int uid2);

/**
* Retrieve the names of all packages that are associated with a particular
* user id. In most cases, this will be a single package name, the package
* that has been assigned that user id. Where there are multiple packages
* sharing the same user id through the "sharedUserId" mechanism, all
* packages with that id will be returned.
*
* @param uid The user id for which you would like to retrieve the
* associated packages.
*
* @return Returns an array of one or more packages assigned to the user
* id, or null if there are no known packages with the given id.
*/
public abstract String[] getPackagesForUid(int uid);

/**
* Retrieve the official name associated with a user id. This name is
* guaranteed to never change, though it is possibly for the underlying
* user id to be changed. That is, if you are storing information about
* user ids in persistent storage, you should use the string returned
* by this function instead of the raw user-id.
*
* @param uid The user id for which you would like to retrieve a name.
* @return Returns a unique name for the given user id, or null if the
* user id is not currently assigned.
*/
public abstract String getNameForUid(int uid);

/**
* Return the user id associated with a shared user name. Multiple
* applications can specify a shared user name in their manifest and thus
* end up using a common uid. This might be used for new applications
* that use an existing shared user name and need to know the uid of the
* shared user.
*
* @param sharedUserName The shared user name whose uid is to be retrieved.
* @return Returns the uid associated with the shared user, or NameNotFoundException
* if the shared user name is not being used by any installed packages
* @hide
*/
public abstract int getUidForSharedUser(String sharedUserName)
throws NameNotFoundException;

/**
* Return a List of all application packages that are installed on the
* device. If flag GET_UNINSTALLED_PACKAGES has been set, a list of all
* applications including those deleted with DONT_DELETE_DATA(partially
* installed apps with data directory) will be returned.
*
* @param flags Additional option flags. Use any combination of
* {@link #GET_META_DATA}, {@link #GET_SHARED_LIBRARY_FILES},
* {link #GET_UNINSTALLED_PACKAGES} to modify the data returned.
*
* @return A List of ApplicationInfo objects, one for each application that
* is installed on the device. In the unlikely case of there being
* no installed applications, an empty list is returned.
* If flag GET_UNINSTALLED_PACKAGES is set, a list of all
* applications including those deleted with DONT_DELETE_DATA
* (partially installed apps with data directory) will be returned.
*
* @see #GET_META_DATA
* @see #GET_SHARED_LIBRARY_FILES
* @see #GET_UNINSTALLED_PACKAGES
*/
public abstract List<ApplicationInfo> getInstalledApplications(int flags);

/**
* Get a list of shared libraries that are available on the
* system.
*
* @return An array of shared library names that are
* available on the system, or null if none are installed.
*
*/
public abstract String[] getSystemSharedLibraryNames();

/**
* Get a list of features that are available on the
* system.
*
* @return An array of FeatureInfo classes describing the features
* that are available on the system, or null if there are none(!!).
*/
public abstract FeatureInfo[] getSystemAvailableFeatures();

/**
* Check whether the given feature name is one of the available
* features as returned by {@link #getSystemAvailableFeatures()}.
*
* @return Returns true if the devices supports the feature, else
* false.
*/
public abstract boolean hasSystemFeature(String name);

/**
* Determine the best action to perform for a given Intent. This is how
* {@link Intent#resolveActivity} finds an activity if a class has not
* been explicitly specified.
*
* @param intent An intent containing all of the desired specification
* (action, data, type, category, and/or component).
* @param flags Additional option flags. The most important is
* MATCH_DEFAULT_ONLY, to limit the resolution to only
* those activities that support the CATEGORY_DEFAULT.
*
* @return Returns a ResolveInfo containing the final activity intent that
* was determined to be the best action. Returns null if no
* matching activity was found. If multiple matching activities are
* found and there is no default set, returns a ResolveInfo
* containing something else, such as the activity resolver.
*
* @see #MATCH_DEFAULT_ONLY
* @see #GET_INTENT_FILTERS
* @see #GET_RESOLVED_FILTER
*/
public abstract ResolveInfo resolveActivity(Intent intent, int flags);

/**
* Retrieve all activities that can be performed for the given intent.
*
* @param intent The desired intent as per resolveActivity().
* @param flags Additional option flags. The most important is
* MATCH_DEFAULT_ONLY, to limit the resolution to only
* those activities that support the CATEGORY_DEFAULT.
*
* @return A List<ResolveInfo> containing one entry for each matching
* Activity. These are ordered from best to worst match -- that
* is, the first item in the list is what is returned by
* resolveActivity(). If there are no matching activities, an empty
* list is returned.
*
* @see #MATCH_DEFAULT_ONLY
* @see #GET_INTENT_FILTERS
* @see #GET_RESOLVED_FILTER
*/
public abstract List<ResolveInfo> queryIntentActivities(Intent intent,
int flags);

/**
* Retrieve a set of activities that should be presented to the user as
* similar options. This is like {@link #queryIntentActivities}, except it
* also allows you to supply a list of more explicit Intents that you would
* like to resolve to particular options, and takes care of returning the
* final ResolveInfo list in a reasonable order, with no duplicates, based
* on those inputs.
*
* @param caller The class name of the activity that is making the
* request. This activity will never appear in the output
* list. Can be null.
* @param specifics An array of Intents that should be resolved to the
* first specific results. Can be null.
* @param intent The desired intent as per resolveActivity().
* @param flags Additional option flags. The most important is
* MATCH_DEFAULT_ONLY, to limit the resolution to only
* those activities that support the CATEGORY_DEFAULT.
*
* @return A List<ResolveInfo> containing one entry for each matching
* Activity. These are ordered first by all of the intents resolved
* in <var>specifics</var> and then any additional activities that
* can handle <var>intent</var> but did not get included by one of
* the <var>specifics</var> intents. If there are no matching
* activities, an empty list is returned.
*
* @see #MATCH_DEFAULT_ONLY
* @see #GET_INTENT_FILTERS
* @see #GET_RESOLVED_FILTER
*/
public abstract List<ResolveInfo> queryIntentActivityOptions(
ComponentName caller, Intent[] specifics, Intent intent, int flags);

/**
* Retrieve all receivers that can handle a broadcast of the given intent.
*
* @param intent The desired intent as per resolveActivity().
* @param flags Additional option flags. The most important is
* MATCH_DEFAULT_ONLY, to limit the resolution to only
* those activities that support the CATEGORY_DEFAULT.
*
* @return A List<ResolveInfo> containing one entry for each matching
* Receiver. These are ordered from first to last in priority. If
* there are no matching receivers, an empty list is returned.
*
* @see #MATCH_DEFAULT_ONLY
* @see #GET_INTENT_FILTERS
* @see #GET_RESOLVED_FILTER
*/
public abstract List<ResolveInfo> queryBroadcastReceivers(Intent intent,
int flags);

/**
* Determine the best service to handle for a given Intent.
*
* @param intent An intent containing all of the desired specification
* (action, data, type, category, and/or component).
* @param flags Additional option flags.
*
* @return Returns a ResolveInfo containing the final service intent that
* was determined to be the best action. Returns null if no
* matching service was found.
*
* @see #GET_INTENT_FILTERS
* @see #GET_RESOLVED_FILTER
*/
public abstract ResolveInfo resolveService(Intent intent, int flags);

/**
* Retrieve all services that can match the given intent.
*
* @param intent The desired intent as per resolveService().
* @param flags Additional option flags.
*
* @return A List<ResolveInfo> containing one entry for each matching
* ServiceInfo. These are ordered from best to worst match -- that
* is, the first item in the list is what is returned by
* resolveService(). If there are no matching services, an empty
* list is returned.
*
* @see #GET_INTENT_FILTERS
* @see #GET_RESOLVED_FILTER
*/
public abstract List<ResolveInfo> queryIntentServices(Intent intent,
int flags);

/**
* Find a single content provider by its base path name.
*
* @param name The name of the provider to find.
* @param flags Additional option flags. Currently should always be 0.
*
* @return ContentProviderInfo Information about the provider, if found,
* else null.
*/
public abstract ProviderInfo resolveContentProvider(String name,
int flags);

/**
* Retrieve content provider information.
*
* Note: unlike most other methods, an empty result set is indicated
* by a null return instead of an empty list.
*
* @param processName If non-null, limits the returned providers to only
* those that are hosted by the given process. If null,
* all content providers are returned.
* @param uid If <var>processName</var> is non-null, this is the required
* uid owning the requested content providers.
* @param flags Additional option flags. Currently should always be 0.
*
* @return A List<ContentProviderInfo> containing one entry for each
* content provider either patching <var>processName</var> or, if
* <var>processName</var> is null, all known content providers.
* If there are no matching providers, null is returned.
*/
public abstract List<ProviderInfo> queryContentProviders(
String processName, int uid, int flags);

/**
* Retrieve all of the information we know about a particular
* instrumentation class.
*
* Throws {@link NameNotFoundException} if instrumentation with the
* given class name can not be found on the system.
*
* @param className The full name (i.e.
* com.google.apps.contacts.InstrumentList) of an
* Instrumentation class.
* @param flags Additional option flags. Currently should always be 0.
*
* @return InstrumentationInfo containing information about the
* instrumentation.
*/
public abstract InstrumentationInfo getInstrumentationInfo(
ComponentName className, int flags) throws NameNotFoundException;

/**
* Retrieve information about available instrumentation code. May be used
* to retrieve either all instrumentation code, or only the code targeting
* a particular package.
*
* @param targetPackage If null, all instrumentation is returned; only the
* instrumentation targeting this package name is
* returned.
* @param flags Additional option flags. Currently should always be 0.
*
* @return A List<InstrumentationInfo> containing one entry for each
* matching available Instrumentation. Returns an empty list if
* there is no instrumentation available for the given package.
*/
public abstract List<InstrumentationInfo> queryInstrumentation(
String targetPackage, int flags);

/**
* Retrieve an image from a package. This is a low-level API used by
* the various package manager info structures (such as
* {@link ComponentInfo} to implement retrieval of their associated
* icon.
*
* @param packageName The name of the package that this icon is coming from.
* Can not be null.
* @param resid The resource identifier of the desired image. Can not be 0.
* @param appInfo Overall information about <var>packageName</var>. This
* may be null, in which case the application information will be retrieved
* for you if needed; if you already have this information around, it can
* be much more efficient to supply it here.
*
* @return Returns a Drawable holding the requested image. Returns null if
* an image could not be found for any reason.
*/
public abstract Drawable getDrawable(String packageName, int resid,
ApplicationInfo appInfo);

/**
* Retrieve the icon associated with an activity. Given the full name of
* an activity, retrieves the information about it and calls
* {@link ComponentInfo#loadIcon ComponentInfo.loadIcon()} to return its icon.
* If the activity can not be found, NameNotFoundException is thrown.
*
* @param activityName Name of the activity whose icon is to be retrieved.
*
* @return Returns the image of the icon, or the default activity icon if
* it could not be found. Does not return null.
* @throws NameNotFoundException Thrown if the resources for the given
* activity could not be loaded.
*
* @see #getActivityIcon(Intent)
*/
public abstract Drawable getActivityIcon(ComponentName activityName)
throws NameNotFoundException;

/**
* Retrieve the icon associated with an Intent. If intent.getClassName() is
* set, this simply returns the result of
* getActivityIcon(intent.getClassName()). Otherwise it resolves the intent‘s
* component and returns the icon associated with the resolved component.
* If intent.getClassName() can not be found or the Intent can not be resolved
* to a component, NameNotFoundException is thrown.
*
* @param intent The intent for which you would like to retrieve an icon.
*
* @return Returns the image of the icon, or the default activity icon if
* it could not be found. Does not return null.
* @throws NameNotFoundException Thrown if the resources for application
* matching the given intent could not be loaded.
*
* @see #getActivityIcon(ComponentName)
*/
public abstract Drawable getActivityIcon(Intent intent)
throws NameNotFoundException;

/**
* Return the generic icon for an activity that is used when no specific
* icon is defined.
*
* @return Drawable Image of the icon.
*/
public abstract Drawable getDefaultActivityIcon();

/**
* Retrieve the icon associated with an application. If it has not defined
* an icon, the default app icon is returned. Does not return null.
*
* @param info Information about application being queried.
*
* @return Returns the image of the icon, or the default application icon
* if it could not be found.
*
* @see #getApplicationIcon(String)
*/
public abstract Drawable getApplicationIcon(ApplicationInfo info);

/**
* Retrieve the icon associated with an application. Given the name of the
* application‘s package, retrieves the information about it and calls
* getApplicationIcon() to return its icon. If the application can not be
* found, NameNotFoundException is thrown.
*
* @param packageName Name of the package whose application icon is to be
* retrieved.
*
* @return Returns the image of the icon, or the default application icon
* if it could not be found. Does not return null.
* @throws NameNotFoundException Thrown if the resources for the given
* application could not be loaded.
*
* @see #getApplicationIcon(ApplicationInfo)
*/
public abstract Drawable getApplicationIcon(String packageName)
throws NameNotFoundException;

/**
* Retrieve text from a package. This is a low-level API used by
* the various package manager info structures (such as
* {@link ComponentInfo} to implement retrieval of their associated
* labels and other text.
*
* @param packageName The name of the package that this text is coming from.
* Can not be null.
* @param resid The resource identifier of the desired text. Can not be 0.
* @param appInfo Overall information about <var>packageName</var>. This
* may be null, in which case the application information will be retrieved
* for you if needed; if you already have this information around, it can
* be much more efficient to supply it here.
*
* @return Returns a CharSequence holding the requested text. Returns null
* if the text could not be found for any reason.
*/
public abstract CharSequence getText(String packageName, int resid,
ApplicationInfo appInfo);

/**
* Retrieve an XML file from a package. This is a low-level API used to
* retrieve XML meta data.
*
* @param packageName The name of the package that this xml is coming from.
* Can not be null.
* @param resid The resource identifier of the desired xml. Can not be 0.
* @param appInfo Overall information about <var>packageName</var>. This
* may be null, in which case the application information will be retrieved
* for you if needed; if you already have this information around, it can
* be much more efficient to supply it here.
*
* @return Returns an XmlPullParser allowing you to parse out the XML
* data. Returns null if the xml resource could not be found for any
* reason.
*/
public abstract XmlResourceParser getXml(String packageName, int resid,
ApplicationInfo appInfo);

/**
* Return the label to use for this application.
*
* @return Returns the label associated with this application, or null if
* it could not be found for any reason.
* @param info The application to get the label of
*/
public abstract CharSequence getApplicationLabel(ApplicationInfo info);

/**
* Retrieve the resources associated with an activity. Given the full
* name of an activity, retrieves the information about it and calls
* getResources() to return its application‘s resources. If the activity
* can not be found, NameNotFoundException is thrown.
*
* @param activityName Name of the activity whose resources are to be
* retrieved.
*
* @return Returns the application‘s Resources.
* @throws NameNotFoundException Thrown if the resources for the given
* application could not be loaded.
*
* @see #getResourcesForApplication(ApplicationInfo)
*/
public abstract Resources getResourcesForActivity(ComponentName activityName)
throws NameNotFoundException;

/**
* Retrieve the resources for an application. Throws NameNotFoundException
* if the package is no longer installed.
*
* @param app Information about the desired application.
*
* @return Returns the application‘s Resources.
* @throws NameNotFoundException Thrown if the resources for the given
* application could not be loaded (most likely because it was uninstalled).
*/
public abstract Resources getResourcesForApplication(ApplicationInfo app)
throws NameNotFoundException;

/**
* Retrieve the resources associated with an application. Given the full
* package name of an application, retrieves the information about it and
* calls getResources() to return its application‘s resources. If the
* appPackageName can not be found, NameNotFoundException is thrown.
*
* @param appPackageName Package name of the application whose resources
* are to be retrieved.
*
* @return Returns the application‘s Resources.
* @throws NameNotFoundException Thrown if the resources for the given
* application could not be loaded.
*
* @see #getResourcesForApplication(ApplicationInfo)
*/
public abstract Resources getResourcesForApplication(String appPackageName)
throws NameNotFoundException;

/**
* Retrieve overall information about an application package defined
* in a package archive file
*
* @param archiveFilePath The path to the archive file
* @param flags Additional option flags. Use any combination of
* {@link #GET_ACTIVITIES},
* {@link #GET_GIDS},
* {@link #GET_CONFIGURATIONS},
* {@link #GET_INSTRUMENTATION},
* {@link #GET_PERMISSIONS},
* {@link #GET_PROVIDERS},
* {@link #GET_RECEIVERS},
* {@link #GET_SERVICES},
* {@link #GET_SIGNATURES}, to modify the data returned.
*
* @return Returns the information about the package. Returns
* null if the package could not be successfully parsed.
*
* @see #GET_ACTIVITIES
* @see #GET_GIDS
* @see #GET_CONFIGURATIONS
* @see #GET_INSTRUMENTATION
* @see #GET_PERMISSIONS
* @see #GET_PROVIDERS
* @see #GET_RECEIVERS
* @see #GET_SERVICES
* @see #GET_SIGNATURES
*
*/
public PackageInfo getPackageArchiveInfo(String archiveFilePath, int flags) {
PackageParser packageParser = new PackageParser(archiveFilePath);
DisplayMetrics metrics = new DisplayMetrics();
metrics.setToDefaults();
final File sourceFile = new File(archiveFilePath);
PackageParser.Package pkg = packageParser.parsePackage(
sourceFile, archiveFilePath, metrics, 0);
if (pkg == null) {
return null;
}
return PackageParser.generatePackageInfo(pkg, null, flags);
}

/**
* @hide
*
* Install a package. Since this may take a little while, the result will
* be posted back to the given observer. An installation will fail if the calling context
* lacks the {@link android.Manifest.permission#INSTALL_PACKAGES} permission, if the
* package named in the package file‘s manifest is already installed, or if there‘s no space
* available on the device.
*
* @param packageURI The location of the package file to install. This can be a ‘file:‘ or a
* ‘content:‘ URI.
* @param observer An observer callback to get notified when the package installation is
* complete. {@link IPackageInstallObserver#packageInstalled(String, int)} will be
* called when that happens. observer may be null to indicate that no callback is desired.
* @param flags - possible values: {@link #INSTALL_FORWARD_LOCK},
* {@link #INSTALL_REPLACE_EXISTING}, {@link #INSTALL_ALLOW_TEST}.
* @param installerPackageName Optional package name of the application that is performing the
* installation. This identifies which market the package came from.
*/
public abstract void installPackage(
Uri packageURI, IPackageInstallObserver observer, int flags,
String installerPackageName);

/**
* Attempts to delete a package. Since this may take a little while, the result will
* be posted back to the given observer. A deletion will fail if the calling context
* lacks the {@link android.Manifest.permission#DELETE_PACKAGES} permission, if the
* named package cannot be found, or if the named package is a "system package".
* (TODO: include pointer to documentation on "system packages")
*
* @param packageName The name of the package to delete
* @param observer An observer callback to get notified when the package deletion is
* complete. {@link android.content.pm.IPackageDeleteObserver#packageDeleted(boolean)} will be
* called when that happens. observer may be null to indicate that no callback is desired.
* @param flags - possible values: {@link #DONT_DELETE_DATA}
*
* @hide
*/
public abstract void deletePackage(
String packageName, IPackageDeleteObserver observer, int flags);

/**
* Retrieve the package name of the application that installed a package. This identifies
* which market the package came from.
*
* @param packageName The name of the package to query
*/
public abstract String getInstallerPackageName(String packageName);

/**
* Attempts to clear the user data directory of an application.
* Since this may take a little while, the result will
* be posted back to the given observer. A deletion will fail if the
* named package cannot be found, or if the named package is a "system package".
*
* @param packageName The name of the package
* @param observer An observer callback to get notified when the operation is finished
* {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
* will be called when that happens. observer may be null to indicate that
* no callback is desired.
*
* @hide
*/
public abstract void clearApplicationUserData(String packageName,
IPackageDataObserver observer);
/**
* Attempts to delete the cache files associated with an application.
* Since this may take a little while, the result will
* be posted back to the given observer. A deletion will fail if the calling context
* lacks the {@link android.Manifest.permission#DELETE_CACHE_FILES} permission, if the
* named package cannot be found, or if the named package is a "system package".
*
* @param packageName The name of the package to delete
* @param observer An observer callback to get notified when the cache file deletion
* is complete.
* {@link android.content.pm.IPackageDataObserver#onRemoveCompleted(String, boolean)}
* will be called when that happens. observer may be null to indicate that
* no callback is desired.
*
* @hide
*/
public abstract void deleteApplicationCacheFiles(String packageName,
IPackageDataObserver observer);

/**
* Free storage by deleting LRU sorted list of cache files across
* all applications. If the currently available free storage
* on the device is greater than or equal to the requested
* free storage, no cache files are cleared. If the currently
* available storage on the device is less than the requested
* free storage, some or all of the cache files across
* all applications are deleted (based on last accessed time)
* to increase the free storage space on the device to
* the requested value. There is no guarantee that clearing all
* the cache files from all applications will clear up
* enough storage to achieve the desired value.
* @param freeStorageSize The number of bytes of storage to be
* freed by the system. Say if freeStorageSize is XX,
* and the current free storage is YY,
* if XX is less than YY, just return. if not free XX-YY number
* of bytes if possible.
* @param observer call back used to notify when
* the operation is completed
*
* @hide
*/
public abstract void freeStorageAndNotify(long freeStorageSize, IPackageDataObserver observer);

/**
* Free storage by deleting LRU sorted list of cache files across
* all applications. If the currently available free storage
* on the device is greater than or equal to the requested
* free storage, no cache files are cleared. If the currently
* available storage on the device is less than the requested
* free storage, some or all of the cache files across
* all applications are deleted (based on last accessed time)
* to increase the free storage space on the device to
* the requested value. There is no guarantee that clearing all
* the cache files from all applications will clear up
* enough storage to achieve the desired value.
* @param freeStorageSize The number of bytes of storage to be
* freed by the system. Say if freeStorageSize is XX,
* and the current free storage is YY,
* if XX is less than YY, just return. if not free XX-YY number
* of bytes if possible.
* @param pi IntentSender call back used to
* notify when the operation is completed.May be null
* to indicate that no call back is desired.
*
* @hide
*/
public abstract void freeStorage(long freeStorageSize, IntentSender pi);

/**
* Retrieve the size information for a package.
* Since this may take a little while, the result will
* be posted back to the given observer. The calling context
* should have the {@link android.Manifest.permission#GET_PACKAGE_SIZE} permission.
*
* @param packageName The name of the package whose size information is to be retrieved
* @param observer An observer callback to get notified when the operation
* is complete.
* {@link android.content.pm.IPackageStatsObserver#onGetStatsCompleted(PackageStats, boolean)}
* The observer‘s callback is invoked with a PackageStats object(containing the
* code, data and cache sizes of the package) and a boolean value representing
* the status of the operation. observer may be null to indicate that
* no callback is desired.
*
* @hide
*/
public abstract void getPackageSizeInfo(String packageName,
IPackageStatsObserver observer);

/**
* @deprecated This function no longer does anything; it was an old
* approach to managing preferred activities, which has been superceeded
* (and conflicts with) the modern activity-based preferences.
*/
@Deprecated
public abstract void addPackageToPreferred(String packageName);

/**
* Retrieve the list of all currently configured preferred packages. The
* first package on the list is the most preferred, the last is the
* least preferred.
*
* @param flags Additional option flags. Use any combination of
* {@link #GET_ACTIVITIES},
* {@link #GET_GIDS},
* {@link #GET_CONFIGURATIONS},
* {@link #GET_INSTRUMENTATION},
* {@link #GET_PERMISSIONS},
* {@link #GET_PROVIDERS},
* {@link #GET_RECEIVERS},
* {@link #GET_SERVICES},
* {@link #GET_SIGNATURES}, to modify the data returned.
*
* @return Returns a list of PackageInfo objects describing each
* preferred application, in order of preference.
*
* @see #GET_ACTIVITIES
* @see #GET_GIDS
* @see #GET_CONFIGURATIONS
* @see #GET_INSTRUMENTATION
* @see #GET_PERMISSIONS
* @see #GET_PROVIDERS
* @see #GET_RECEIVERS
* @see #GET_SERVICES
* @see #GET_SIGNATURES
*/
public abstract List<PackageInfo> getPreferredPackages(int flags);

/**
* @deprecated This is a protected API that should not have been available
* to third party applications. It is the platform‘s responsibility for
* assigning preferred activities and this can not be directly modified.
*
* Add a new preferred activity mapping to the system. This will be used
* to automatically select the given activity component when
* {@link Context#startActivity(Intent) Context.startActivity()} finds
* multiple matching activities and also matches the given filter.
*
* @param filter The set of intents under which this activity will be
* made preferred.
* @param match The IntentFilter match category that this preference
* applies to.
* @param set The set of activities that the user was picking from when
* this preference was made.
* @param activity The component name of the activity that is to be
* preferred.
*/
@Deprecated
public abstract void addPreferredActivity(IntentFilter filter, int match,
ComponentName[] set, ComponentName activity);

/**
* @deprecated This is a protected API that should not have been available
* to third party applications. It is the platform‘s responsibility for
* assigning preferred activities and this can not be directly modified.
*
* Replaces an existing preferred activity mapping to the system, and if that were not present
* adds a new preferred activity. This will be used
* to automatically select the given activity component when
* {@link Context#startActivity(Intent) Context.startActivity()} finds
* multiple matching activities and also matches the given filter.
*
* @param filter The set of intents under which this activity will be
* made preferred.
* @param match The IntentFilter match category that this preference
* applies to.
* @param set The set of activities that the user was picking from when
* this preference was made.
* @param activity The component name of the activity that is to be
* preferred.
* @hide
*/
@Deprecated
public abstract void replacePreferredActivity(IntentFilter filter, int match,
ComponentName[] set, ComponentName activity);

/**
* Remove all preferred activity mappings, previously added with
* {@link #addPreferredActivity}, from the
* system whose activities are implemented in the given package name.
* An application can only clear its own package(s).
*
* @param packageName The name of the package whose preferred activity
* mappings are to be removed.
*/
public abstract void clearPackagePreferredActivities(String packageName);

/**
* Retrieve all preferred activities, previously added with
* {@link #addPreferredActivity}, that are
* currently registered with the system.
*
* @param outFilters A list in which to place the filters of all of the
* preferred activities, or null for none.
* @param outActivities A list in which to place the component names of
* all of the preferred activities, or null for none.
* @param packageName An option package in which you would like to limit
* the list. If null, all activities will be returned; if non-null, only
* those activities in the given package are returned.
*
* @return Returns the total number of registered preferred activities
* (the number of distinct IntentFilter records, not the number of unique
* activity components) that were found.
*/
public abstract int getPreferredActivities(List<IntentFilter> outFilters,
List<ComponentName> outActivities, String packageName);

/**
* Set the enabled setting for a package component (activity, receiver, service, provider).
* This setting will override any enabled state which may have been set by the component in its
* manifest.
*
* @param componentName The component to enable
* @param newState The new enabled state for the component. The legal values for this state
* are:
* {@link #COMPONENT_ENABLED_STATE_ENABLED},
* {@link #COMPONENT_ENABLED_STATE_DISABLED}
* and
* {@link #COMPONENT_ENABLED_STATE_DEFAULT}
* The last one removes the setting, thereby restoring the component‘s state to
* whatever was set in it‘s manifest (or enabled, by default).
* @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
*/
public abstract void setComponentEnabledSetting(ComponentName componentName,
int newState, int flags);

/**
* Return the the enabled setting for a package component (activity,
* receiver, service, provider). This returns the last value set by
* {@link #setComponentEnabledSetting(ComponentName, int, int)}; in most
* cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
* the value originally specified in the manifest has not been modified.
*
* @param componentName The component to retrieve.
* @return Returns the current enabled state for the component. May
* be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
* {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
* {@link #COMPONENT_ENABLED_STATE_DEFAULT}. The last one means the
* component‘s enabled state is based on the original information in
* the manifest as found in {@link ComponentInfo}.
*/
public abstract int getComponentEnabledSetting(ComponentName componentName);

/**
* Set the enabled setting for an application
* This setting will override any enabled state which may have been set by the application in
* its manifest. It also overrides the enabled state set in the manifest for any of the
* application‘s components. It does not override any enabled state set by
* {@link #setComponentEnabledSetting} for any of the application‘s components.
*
* @param packageName The package name of the application to enable
* @param newState The new enabled state for the component. The legal values for this state
* are:
* {@link #COMPONENT_ENABLED_STATE_ENABLED},
* {@link #COMPONENT_ENABLED_STATE_DISABLED}
* and
* {@link #COMPONENT_ENABLED_STATE_DEFAULT}
* The last one removes the setting, thereby restoring the applications‘s state to
* whatever was set in its manifest (or enabled, by default).
* @param flags Optional behavior flags: {@link #DONT_KILL_APP} or 0.
*/
public abstract void setApplicationEnabledSetting(String packageName,
int newState, int flags);

/**
* Return the the enabled setting for an application. This returns
* the last value set by
* {@link #setApplicationEnabledSetting(String, int, int)}; in most
* cases this value will be {@link #COMPONENT_ENABLED_STATE_DEFAULT} since
* the value originally specified in the manifest has not been modified.
*
* @param packageName The component to retrieve.
* @return Returns the current enabled state for the component. May
* be one of {@link #COMPONENT_ENABLED_STATE_ENABLED},
* {@link #COMPONENT_ENABLED_STATE_DISABLED}, or
* {@link #COMPONENT_ENABLED_STATE_DEFAULT}. The last one means the
* application‘s enabled state is based on the original information in
* the manifest as found in {@link ComponentInfo}.
*/
public abstract int getApplicationEnabledSetting(String packageName);

/**
* Return whether the device has been booted into safe mode.
*/
public abstract boolean isSafeMode();

/**
* Attempts to move package resources from internal to external media or vice versa.
* Since this may take a little while, the result will
* be posted back to the given observer. This call may fail if the calling context
* lacks the {@link android.Manifest.permission#MOVE_PACKAGE} permission, if the
* named package cannot be found, or if the named package is a "system package".
*
* @param packageName The name of the package to delete
* @param observer An observer callback to get notified when the package move is
* complete. {@link android.content.pm.IPackageMoveObserver#packageMoved(boolean)} will be
* called when that happens. observer may be null to indicate that no callback is desired.
* @param flags To indicate install location {@link #MOVE_INTERNAL} or
* {@link #MOVE_EXTERNAL_MEDIA}
*
* @hide
*/
public abstract void movePackage(
String packageName, IPackageMoveObserver observer, int flags);
}

PackageManager

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PackageManager

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