Context

所有已知实现类:

Ability, AbilityContext, AbilityPackage, AbilitySlice, AccessibleAbility, AceAbility, AceDataAbility, AceServiceAbility, AVBrowserService, FileAbility, Fraction, FractionAbility, HostService, InputMethodAbility, IntentAbility, OffHostService, WorkScheduler
```
public interface Context
```
Provides the context of an object in the application and obtains application environment information.
You can use Context to obtain resources, start abilities, create or obtain task dispatchers, and obtain bundle and running information about the application.

从以下版本开始:

1

字段概要

字段
限定符和类型	字段	说明
`static int`	`CONTEXT_IGNORE_SECURITY`	Indicates the flag used with `createBundleContext(java.lang.String,int)` for creating a `Context` object that can always be loaded with all security restrictions ignored.
`static int`	`CONTEXT_INCLUDE_CODE`	Indicates the flag used with `createBundleContext(java.lang.String,int)` for creating a `Context` object that includes the application code.
`static int`	`CONTEXT_RESOUCE_ONLY`
`static int`	`CONTEXT_RESTRICTED`	Indicates the flag used with `createBundleContext(java.lang.String,int)` for creating a `Context` object in which particular features may be disabled.
`static int`	`MODE_APPEND`	Indicates the append file creation mode, in which data will be written to the end of the file instead of being erased if the file to be created already exists.
`static int`	`MODE_PRIVATE`	Indicates the default file creation mode, in which the created file is accessible only to the calling application (or all applications sharing the same user ID).

方法概要

所有方法实例方法抽象方法
限定符和类型	方法	说明
`boolean`	`canRequestPermission(String permission)`	Confirms with the permission management module to check whether a request prompt is required for granting a certain permission.
`void`	`compelVerifyCallerPermission(String permission, String message)`	Checks whether a specified permission has been granted to the calling process for inter-process communication (IPC), and throws a `SecurityException` if the permission is not granted.
`void`	`compelVerifyCallerUriPermission(Uri uri, int modeFlags, String message)`	Checks whether the calling process for IPC has the permission to access a specified URI, and throws a `SecurityException` if it does not have the permission.
`void`	`compelVerifyPermission(String permission, int pid, int uid, String message)`	Checks whether a specified permission has been granted to the process identified by `pid` and `uid`, and throws a `SecurityException` if the permission is not granted.
`void`	`compelVerifyPermission(String permission, String message)`	Checks whether a specified permission has been granted to the calling process, and throws a `SecurityException` if the permission is not granted.
`void`	`compelVerifyUriPermission(Uri uri, int pid, int uid, int modeFlags, String message)`	Checks whether the process identified by `pid` and `uid` has the permission to access a specified URI, and throws a `SecurityException` if it does not have the permission.
`void`	`compelVerifyUriPermission(Uri uri, int modeFlags, String message)`	Checks whether the calling process has the permission to access a specified URI, and throws a `SecurityException` if it does not have the permission.
`void`	`compelVerifyUriPermission(Uri uri, String readPermission, String writePermission, int pid, int uid, int modeFlags, String message)`	Checks whether the process identified by `pid` and `uid` has specified read and write permissions as well as the permission to access a specified URI, and throws a `SecurityException` if it does not have the permissions.
`boolean`	`connectAbility(Intent intent, IAbilityConnection conn)`	Connects the current ability to an ability using the `AbilityInfo.AbilityType.SERVICE` template.
`Context`	`createBundleContext(String bundleName, int flag)`	Creates a `Context` object for an application with the given bundle name.
`TaskDispatcher`	`createParallelTaskDispatcher(String name, TaskPriority priority)`	Creates a parallel task dispatcher with a specified priority.
`TaskDispatcher`	`createSerialTaskDispatcher(String name, TaskPriority priority)`	Creates a serial task dispatcher with a specified priority.
`boolean`	`deleteFile(String fileName)`	Deletes the specified private file associated with the application.
`void`	`disconnectAbility(IAbilityConnection conn)`	Disconnects the current ability from an ability using the `AbilityInfo.AbilityType.SERVICE` template.
`void`	`displayUnlockMissionMessage()`	Displays a system-defined message to the user, prompting the user how to exit the lock mission mode.
`AbilityInfo`	`getAbilityInfo()`	Obtains information about the current ability.
`IAbilityManager`	`getAbilityManager()`	Obtains an ability manager.
`Context`	`getAbilityPackageContext()`	Obtains the `Context` object of this ability.
`Context`	`getApplicationContext()`	Obtains the `Context` object of the application.
`ApplicationInfo`	`getApplicationInfo()`	Obtains information about the current application.
`String`	`getAppType()`	Obtains the type of this application.
`String`	`getBundleCodePath()`	Obtains the path of the package containing the current ability.
`IBundleManager`	`getBundleManager()`	Obtains an `IBundleManager` instance.
`String`	`getBundleName()`	Obtains the bundle name of the current ability.
`String`	`getBundleResourcePath()`	Obtains the path of the Ohos Ability Package (HAP} containing this ability.
`File`	`getCacheDir()`	Obtains the application-specific cache directory on the device's internal storage.
`Uri`	`getCaller()`	Obtains information about the caller of this ability.
`ElementName`	`getCallingAbility()`	Obtains the `ElementName` of the ability that called the current ability.
`String`	`getCallingBundle()`	Obtains the bundle name of the ability that called the current ability.
`ClassLoader`	`getClassloader()`	Obtains a `ClassLoader` instance.
`File`	`getCodeCacheDir()`	Obtains the application-specific code-cache directory on the device's internal storage.
`int`	`getColor(int resId)`	Get the color of this `Context` based on the specified resource ID.
`int`	`getColorMode()`	Obtains color mode.
`File`	`getDatabaseDir()`	Obtains the local database path.
`File`	`getDataDir()`	Obtains the absolute path where all private data files of this application are stored.
`File`	`getDir(String name, int mode)`	Obtains the directory for storing custom data files of the application.
`int`	`getDisplayOrientation()`	Obtains the current display orientation of this ability.
`File`	`getDistributedDir()`	Obtains the distributed file path.
`ElementName`	`getElementName()`	Obtains the `ohos.bundle.ElementName` object of the current ability.
`File`	`getExternalCacheDir()`	Obtains the absolute path to the application-specific cache directory on the primary external or shared storage device.
`File[]`	`getExternalCacheDirs()`	Obtains the absolute paths to the application-specific cache directories on all external or shared storage devices.
`File`	`getExternalFilesDir(String type)`	Obtains the absolute path to the directory for storing files for the application on the primary external or shared storage device.
`File[]`	`getExternalFilesDirs(String type)`	Obtains the absolute paths to the directories for storing files for the application on all external or shared storage devices.
`File[]`	`getExternalMediaDirs()`	Obtains the application-specific media directories on all files where it can place.
`File`	`getFilesDir()`	Obtains the directory for storing files for the application on the device's internal storage.
`TaskDispatcher`	`getGlobalTaskDispatcher(TaskPriority priority)`	Obtains a global task dispatcher with a specified priority.
`HapModuleInfo`	`getHapModuleInfo()`	Obtains the `HapModuleInfo` object of the application.
`int[]`	`getIntArray(int resId)`	Get the integer array of this `Context` based on the specified resource ID.
`Object`	`getLastStoredDataWhenConfigChanged()`	Obtains the most recent data saved via `Ability.onStoreDataWhenConfigChange()` when the system configuration is changed.
`String`	`getLocalClassName()`	Obtains the local class name of the ability.
`TaskDispatcher`	`getMainTaskDispatcher()`	Obtains a task dispatcher that is bound to the application main thread.
`File`	`getNoBackupFilesDir()`	Obtains the absolute path which app created and will be excluded from automatic backup to remote storage.
`Pattern`	`getPattern()`	Obtains the pattern of this `Context`.
`File`	`getPreferencesDir()`	Obtains the path storing the preference file of the application.
`ProcessInfo`	`getProcessInfo()`	Obtains information about the current process, including the process ID and name.
`String`	`getProcessName()`	Obtains the name of the current process.
`ResourceManager`	`getResourceManager()`	Obtains a resource manager.
`ResourceManager`	`getResourceManager(Configuration configuration)`	Obtains a resource manager based on the specified `Configuration` object.
`String`	`getString(int resId)`	Get the string of this `Context` based on the specified resource ID.
`String`	`getString(int resId, Object... formatArgs)`	Get the string of this `Context` based on the specified resource ID and formatArgs.
`String[]`	`getStringArray(int resId)`	Get the string array of this `Context` based on the specified resource ID.
`Theme`	`getTheme()`	Obtains the theme of this `Context`.
`int`	`getThemeId()`	Obtains the theme id of this `Context`.
`TaskDispatcher`	`getUITaskDispatcher()`	Obtains a task dispatcher that is bound to the UI thread.
`boolean`	`isCredentialEncryptedStorage()`	Checks whether the context uses credential-encrypted storage.
`boolean`	`isDeviceEncryptedStorage()`	Checks whether the context uses device-protected storage.
`boolean`	`isUpdatingConfigurations()`	Checks whether the configuration of this ability is changing
`void`	`lockMission()`	Sets the application to start its ability in lock mission mode.
`void`	`printDrawnCompleted()`	Prints out the time required for the system to complete drawing this Page ability.
`void`	`requestPermissionsFromUser(String[] permissions, int requestCode)`	Requests certain permissions from the system.
`void`	`restart()`	Restarts this ability using a new instance.
`void`	`setColorMode(int mode)`	Set color mode.
`void`	`setDisplayOrientation(AbilityInfo.DisplayOrientation newOrientation)`	Sets the display orientation of the current ability.
`void`	`setPattern(int patternId)`	Sets the pattern of this `Context` based on the specified pattern ID.
`void`	`setShowOnLockScreen(boolean showOnLockScreen)`	Sets whether to show this ability on top of the lock screen whenever the lock screen is displayed, keeping the ability in the ACTIVE state.
`void`	`setTheme(int themeId)`	Sets the theme of this `Context` based on the specified theme ID.
`void`	`setTransitionAnimation(int enterAnim, int exitAnim)`	Sets the transition animation between two abilities.
`void`	`setWakeUpScreen(boolean wakeUpScreen)`	Sets whether to wake up the screen when this ability is restored.
`void`	`startAbilities(Intent[] intents)`	Starts multiple abilities.
`void`	`startAbility(Intent intent, int requestCode)`	Starts a new ability.
`void`	`startAbility(Intent intent, int requestCode, AbilityStartSetting abilityStartSetting)`	Starts a new ability with special ability start setting.
`void`	`startAbility(Intent intent, AbilityStartSetting abilityStartSetting, IAbilityStartCallback iAbilityStartCallback)`	Starts a new ability.
`boolean`	`stopAbility(Intent intent)`	Destroys another ability that uses the `AbilityInfo.AbilityType.SERVICE` template.
`void`	`switchToCredentialEncryptedStorageContext()`	Changes the context storage to credential-protected storage.
`void`	`switchToDeviceEncryptedStorageContext()`	Changes the context storage to device-protected storage.
`void`	`terminateAbility()`	Destroys the current ability.
`void`	`terminateAbility(int requestCode)`	Destroys another ability you had previously started by calling `Ability.startAbilityForResult(ohos.aafwk.content.Intent, int, ohos.aafwk.ability.startsetting.AbilityStartSetting)` with the same `requestCode` passed.
`boolean`	`terminateAbilityResult(int startId)`	Destroys this Service ability if the number of times it has been started equals the number represented by the given `startId`.
`void`	`unlockMission()`	Unlocks this ability by exiting the lock mission mode.
`int`	`verifyCallingOrSelfPermission(String permission)`	Checks whether the calling or current process has the given permission.
`int`	`verifyCallingPermission(String permission)`	Checks whether the calling process for inter-process communication has the given permission.
`int`	`verifyPermission(String permission, int pid, int uid)`	Checks whether a process ID (PID) and user ID (UID) have the given permission.
`int`	`verifySelfPermission(String permission)`	Checks whether the current process has the given permission.

- 字段详细资料
  - CONTEXT_IGNORE_SECURITY
```
static final int CONTEXT_IGNORE_SECURITY
```
    Indicates the flag used with createBundleContext(java.lang.String,int) for creating a Context object that can always be loaded with all security restrictions ignored.
    The value is 0x00000002.
    
    从以下版本开始:
    
    3
    
    另请参阅:
    
    常量字段值
  - CONTEXT_INCLUDE_CODE
```
static final int CONTEXT_INCLUDE_CODE
```
    Indicates the flag used with createBundleContext(java.lang.String,int) for creating a Context object that includes the application code.
    The value is 0x00000001.
    
    从以下版本开始:
    
    3
    
    另请参阅:
    
    常量字段值
  - CONTEXT_RESOUCE_ONLY
```
static final int CONTEXT_RESOUCE_ONLY
```
    另请参阅:
    
    常量字段值
  - CONTEXT_RESTRICTED
```
static final int CONTEXT_RESTRICTED
```
    Indicates the flag used with createBundleContext(java.lang.String,int) for creating a Context object in which particular features may be disabled.
    The value is 0x00000004.
    
    从以下版本开始:
    
    3
    
    另请参阅:
    
    常量字段值
  - MODE_APPEND
```
static final int MODE_APPEND
```
    Indicates the append file creation mode, in which data will be written to the end of the file instead of being erased if the file to be created already exists.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - MODE_PRIVATE
```
static final int MODE_PRIVATE
```
    Indicates the default file creation mode, in which the created file is accessible only to the calling application (or all applications sharing the same user ID).
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
- 方法详细资料
  - createParallelTaskDispatcher
```
TaskDispatcher createParallelTaskDispatcher(String name,
                                            TaskPriority priority)
```
    Creates a parallel task dispatcher with a specified priority.
    Unlike a global task dispatcher created by using getGlobalTaskDispatcher(ohos.app.dispatcher.task.TaskPriority), a parallel task dispatcher can use separate task groups to run tasks in a group in parallel and run different task groups in sequence.
    
    参数:
    
    name - Indicates the task dispatcher name. This parameter is used to locate problems.
    
    priority - Indicates the priority of all tasks dispatched by the parallel task dispatcher.
    
    返回:
    
    Returns a parallel task dispatcher.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    TaskPriority.HIGH, TaskPriority.DEFAULT, TaskPriority.LOW
  - createSerialTaskDispatcher
```
TaskDispatcher createSerialTaskDispatcher(String name,
                                          TaskPriority priority)
```
    Creates a serial task dispatcher with a specified priority.
    If you want to execute tasks in a specific sequence, use a serial task dispatcher. Otherwise, use a parallel task dispatcher.
    
    参数:
    
    name - Indicates the task dispatcher name. This parameter is used to locate problems.
    
    priority - Indicates the priority of all tasks dispatched by the created task dispatcher.
    
    返回:
    
    Returns a serial task dispatcher.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    TaskPriority.HIGH, TaskPriority.DEFAULT, TaskPriority.LOW
  - getGlobalTaskDispatcher
```
TaskDispatcher getGlobalTaskDispatcher(TaskPriority priority)
```
    Obtains a global task dispatcher with a specified priority.
    You can use a global task dispatcher to dispatch tasks that are independent from each other. Do not create task groups or execution barriers on this dispatcher.
    
    参数:
    
    priority - Indicates the priority of all tasks dispatched by the global task dispatcher.
    
    返回:
    
    Returns a global task dispatcher.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    TaskPriority.HIGH, TaskPriority.DEFAULT, TaskPriority.LOW
  - getMainTaskDispatcher
```
TaskDispatcher getMainTaskDispatcher()
```
    Obtains a task dispatcher that is bound to the application main thread.
    Tasks dispatched on this dispatcher are executed in sequence. Do not use this dispatcher on the main thread for running synchronous tasks, Otherwise, a deadlock occurs.
    
    返回:
    
    Returns the task dispatcher that is bound to the application main thread.
    
    从以下版本开始:
    
    1
  - getUITaskDispatcher
```
TaskDispatcher getUITaskDispatcher()
```
    Obtains a task dispatcher that is bound to the UI thread.
    Tasks dispatched on this dispatcher are executed in sequence. Do not use this dispatcher on the UI thread for running synchronous tasks, Otherwise, a deadlock occurs.
    
    返回:
    
    Returns the task dispatcher that is bound to the UI thread.
    
    从以下版本开始:
    
    1
  - getApplicationInfo
```
ApplicationInfo getApplicationInfo()
```
    Obtains information about the current application.
    The returned application information includes basic information such as the application name and application permissions.
    
    返回:
    
    Returns the ApplicationInfo object for the current application.
    
    从以下版本开始:
    
    1
  - getProcessInfo
```
ProcessInfo getProcessInfo()
```
    Obtains information about the current process, including the process ID and name.
    
    返回:
    
    Returns the ProcessInfo object for the current process.
    
    从以下版本开始:
    
    1
  - getAbilityInfo
```
AbilityInfo getAbilityInfo()
```
    Obtains information about the current ability.
    The returned information includes the class name, bundle name, and other information about the current ability.
    
    返回:
    
    Returns the AbilityInfo object for the current ability.
    
    从以下版本开始:
    
    1
  - getResourceManager
```
ResourceManager getResourceManager()
```
    Obtains a resource manager.
    
    返回:
    
    Returns a ResourceManager object.
    
    从以下版本开始:
    
    1
  - getPreferencesDir
```
File getPreferencesDir()
```
    Obtains the path storing the preference file of the application.
    If the preference file path does not exist, the system creates one and returns the created path.
    
    返回:
    
    Returns the preference file.
    
    从以下版本开始:
    
    1
  - getDatabaseDir
```
File getDatabaseDir()
```
    Obtains the local database path.
    If the local database path does not exist, the system creates one and returns the created path.
    
    返回:
    
    Returns the local database file.
    
    从以下版本开始:
    
    1
  - getDistributedDir
```
File getDistributedDir()
```
    Obtains the distributed file path.
    If the distributed file path does not exist, the system creates one and returns the created path. This method is applicable only to the context of an ability rather than that of an application.
    
    返回:
    
    Returns the distributed file.
    
    从以下版本开始:
    
    1
  - switchToDeviceEncryptedStorageContext
```
void switchToDeviceEncryptedStorageContext()
```
    Changes the context storage to device-protected storage.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    switchToDeviceEncryptedStorageContext()
  - switchToCredentialEncryptedStorageContext
```
void switchToCredentialEncryptedStorageContext()
```
    Changes the context storage to credential-protected storage.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    switchToCredentialEncryptedStorageContext()
  - isDeviceEncryptedStorage
```
boolean isDeviceEncryptedStorage()
```
    Checks whether the context uses device-protected storage.
    
    返回:
    
    Returns true if the context uses device-protected storage; returns false otherwise.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    isCredentialEncryptedStorage()
  - isCredentialEncryptedStorage
```
boolean isCredentialEncryptedStorage()
```
    Checks whether the context uses credential-encrypted storage.
    
    返回:
    
    Returns true if the context uses credential-encrypted storage; returns false otherwise.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    isDeviceEncryptedStorage()
  - verifyCallingPermission
```
int verifyCallingPermission(String permission)
```
    Checks whether the calling process for inter-process communication has the given permission.
    The calling process is not the current process.
    
    参数:
    
    permission - Indicates the permission to check. This parameter cannot be null.
    
    返回:
    
    Returns 0 (IBundleManager.PERMISSION_GRANTED) if the calling process has the permission; returns -1 (IBundleManager.PERMISSION_DENIED) otherwise.
    
    从以下版本开始:
    
    1
  - verifySelfPermission
```
int verifySelfPermission(String permission)
```
    Checks whether the current process has the given permission.
    You need to call requestPermissionsFromUser(java.lang.String[],int) to request a permission only if the current process does not have the specific permission.
    
    参数:
    
    permission - Indicates the permission to check. This parameter cannot be null.
    
    返回:
    
    Returns 0 (IBundleManager.PERMISSION_GRANTED) if the current process has the permission; returns -1 (IBundleManager.PERMISSION_DENIED) otherwise.
    
    从以下版本开始:
    
    1
  - verifyCallingOrSelfPermission
```
int verifyCallingOrSelfPermission(String permission)
```
    Checks whether the calling or current process has the given permission.
    This method checks permission for a calling process only if the call is from a remote device. Otherwise, it checks permission for the current process.
    
    参数:
    
    permission - Indicates the permission to check. This parameter cannot be null.
    
    返回:
    
    Returns 0 (IBundleManager.PERMISSION_GRANTED) if the calling or current process has the permission; returns -1 (IBundleManager.PERMISSION_DENIED) otherwise.
    
    从以下版本开始:
    
    1
  - verifyPermission
```
int verifyPermission(String permission,
                     int pid,
                     int uid)
```
    Checks whether a process ID (PID) and user ID (UID) have the given permission.
    
    参数:
    
    permission - Indicates the permission to check. This parameter cannot be null.
    
    pid - Indicates the process ID. The value must be greater than 0.
    
    uid - Indicates the user ID.
    
    返回:
    
    Returns 0 (IBundleManager.PERMISSION_GRANTED) if the PID and UID have the permission; returns -1 (IBundleManager.PERMISSION_DENIED) otherwise.
    
    从以下版本开始:
    
    1
  - getClassloader
```
ClassLoader getClassloader()
```
    Obtains a ClassLoader instance.
    A ClassLoader instance is used to load a class, for example, to load the class of the current ability using the class name.
    
    返回:
    
    Returns a ClassLoader instance.
    
    从以下版本开始:
    
    1
  - getApplicationContext
```
Context getApplicationContext()
```
    Obtains the Context object of the application.
    
    返回:
    
    Returns the Context object of the application.
    
    从以下版本开始:
    
    1
  - terminateAbility
```
void terminateAbility()
```
    Destroys the current ability.
    After the current ability using either the AbilityInfo.AbilityType.SERVICE or AbilityInfo.AbilityType.PAGE template performs all operations, it can use this method to destroy itself to free up memory.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    stopAbility(ohos.aafwk.content.Intent), startAbility(ohos.aafwk.content.Intent, int)
  - terminateAbility
```
void terminateAbility(int requestCode)
```
    Destroys another ability you had previously started by calling Ability.startAbilityForResult(ohos.aafwk.content.Intent, int, ohos.aafwk.ability.startsetting.AbilityStartSetting) with the same requestCode passed.
    
    参数:
    
    requestCode - Indicates the request code passed for starting the ability.
    
    从以下版本开始:
    
    3
  - displayUnlockMissionMessage
```
void displayUnlockMissionMessage()
```
    Displays a system-defined message to the user, prompting the user how to exit the lock mission mode.
    This method takes effect only when the mission that contains this ability is in the ohos.app.AbilityManager#LOCK_MISSION_MODE_LOCKED or ohos.app.AbilityManager#LOCK_MISSION_MODE_PINNED state.
    
    从以下版本开始:
    
    4
  - lockMission
```
void lockMission()
```
    Sets the application to start its ability in lock mission mode.
    This method takes effect only when the ability runs on the foreground.
    
    从以下版本开始:
    
    4
  - unlockMission
```
void unlockMission()
```
    Unlocks this ability by exiting the lock mission mode.
    This method takes effect only for abilities that have been put into the lock mission mode by the lockMission() method.
    
    从以下版本开始:
    
    4
  - getLocalClassName
```
String getLocalClassName()
```
    Obtains the local class name of the ability. A local class name is not prefixed with the package name. This method is available only to Page abilities.
    
    返回:
    
    Returns the local class name.
    
    从以下版本开始:
    
    3
  - getElementName
```
ElementName getElementName()
```
    Obtains the ohos.bundle.ElementName object of the current ability. This method is available only to Page abilities.
    
    返回:
    
    Returns the ohos.bundle.ElementName object of the current ability.
    
    从以下版本开始:
    
    3
  - getCallingAbility
```
ElementName getCallingAbility()
```
    Obtains the ElementName of the ability that called the current ability.
    You can use the obtained ElementName to check whether the calling ability is allowed to receive the data you will send.
    
    If you did not use Ability.startAbilityForResult(ohos.aafwk.content.Intent, int, ohos.aafwk.ability.startsetting.AbilityStartSetting) to start the calling ability, null is returned.
    
    返回:
    
    Returns the ElementName of the calling ability; returns null if no calling ability is available.
    
    从以下版本开始:
    
    2
  - getCallingBundle
```
String getCallingBundle()
```
    Obtains the bundle name of the ability that called the current ability.
    You can use the obtained bundle name to check whether the calling ability is allowed to receive the data you will send.
    
    If you did not use Ability.startAbilityForResult(ohos.aafwk.content.Intent, int, ohos.aafwk.ability.startsetting.AbilityStartSetting) to start the calling ability, null is returned.
    
    返回:
    
    Returns the bundle name of the calling ability; returns null if no calling ability is available.
    
    从以下版本开始:
    
    2
  - stopAbility
```
boolean stopAbility(Intent intent)
```
    Destroys another ability that uses the AbilityInfo.AbilityType.SERVICE template.
    The current ability using either the AbilityInfo.AbilityType.SERVICE or AbilityInfo.AbilityType.PAGE template can call this method to destroy another ability that uses the AbilityInfo.AbilityType.SERVICE template. The current ability itself can be destroyed by calling the terminateAbility() method.
    
    参数:
    
    intent - Indicates the Intent containing information about the ability to destroy.
    
    返回:
    
    Returns true if the ability is destroyed successfully; returns false otherwise.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    startAbility(ohos.aafwk.content.Intent, int), terminateAbility()
  - startAbility
```
void startAbility(Intent intent,
                  int requestCode)
```
    Starts a new ability.
    An ability using the AbilityInfo.AbilityType.SERVICE or AbilityInfo.AbilityType.PAGE template uses this method to start a specific ability. The system locates the target ability from installed abilities based on the value of the intent parameter and then starts it. You can specify the ability to start using the intent parameter.
    
    参数:
    
    intent - Indicates the Intent containing information about the target ability to start.
    
    requestCode - Indicates the request code returned after the ability using the AbilityInfo.AbilityType.PAGE template is started. You can define the request code to identify the results returned by abilities. The value ranges from 0 to 65535. This parameter takes effect only on abilities using the AbilityInfo.AbilityType.PAGE template.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    stopAbility(ohos.aafwk.content.Intent), terminateAbility(), connectAbility(ohos.aafwk.content.Intent, IAbilityConnection), disconnectAbility(IAbilityConnection)
  - startAbility
```
void startAbility(Intent intent,
                  AbilityStartSetting abilityStartSetting,
                  IAbilityStartCallback iAbilityStartCallback)
```
    Starts a new ability.
    An ability using the AbilityInfo.AbilityType.SERVICE or AbilityInfo.AbilityType.PAGE template uses this method to start a specific ability. The system locates the target ability from installed abilities based on the value of the intent parameter and then starts it. You can specify the ability to start using the intent parameter.
    
    参数:
    
    intent - Indicates the Intent containing information about the target ability to start.
    
    abilityStartSetting - Indicates the special start setting used in starting ability.
    
    iAbilityStartCallback - Indcate the IAbilityStartCallback callback interface.
    
    从以下版本开始:
    
    5
    
    另请参阅:
    
    stopAbility(ohos.aafwk.content.Intent), terminateAbility(), connectAbility(ohos.aafwk.content.Intent, IAbilityConnection), disconnectAbility(IAbilityConnection)
  - startAbility
```
void startAbility(Intent intent,
                  int requestCode,
                  AbilityStartSetting abilityStartSetting)
```
    Starts a new ability with special ability start setting.
    An ability using the AbilityInfo.AbilityType.SERVICE or AbilityInfo.AbilityType.PAGE template uses this method to start a specific ability. The system locates the target ability from installed abilities based on the value of the intent parameter and then starts it. You can specify the ability to start using the intent parameter.
    
    参数:
    
    intent - Indicates the Intent containing information about the target ability to start.
    
    requestCode - Indicates the request code returned after the ability is started. You can define the request code to identify the results returned by abilities. The value ranges from 0 to 65535.
    
    abilityStartSetting - Indicates the special start setting used in starting ability.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    startAbility(ohos.aafwk.content.Intent, int), AbilityStartSetting
  - startAbilities
```
void startAbilities(Intent[] intents)
```
    Starts multiple abilities.
    An ability using the AbilityInfo.AbilityType.SERVICE or AbilityInfo.AbilityType.PAGE template uses this method to start specific abilities. The system distinguishes target abilities from installed abilities based on the value of the intents parameter and then starts the target abilities. You can use the intents parameter to specify target abilities.
    
    参数:
    
    intents - Indicates an array of Intent objects containing information about the target abilities.
    
    从以下版本开始:
    
    3
  - createBundleContext
```
Context createBundleContext(String bundleName,
                            int flag)
```
    Creates a Context object for an application with the given bundle name.
    The created Context object is the same as that obtained by the specified application after it is loaded. They have the same resources and class loader. A new Context object is returned each time this method is called.
    
    参数:
    
    bundleName - Indicates the bundle name of the application.
    
    flag - Indicates the flag for creating a Context object. It can be 0, any of the following values, or any combination of the following values: CONTEXT_IGNORE_SECURITY, CONTEXT_INCLUDE_CODE, and CONTEXT_RESTRICTED. The value 0 indicates that there is no restriction on creating contexts for applications.
    
    返回:
    
    Returns a Context object created for the specified application.
    
    抛出:
    
    SecurityException - Throws this exception if the requested Context cannot be loaded to the caller's process for security reasons. To resolve this exception, you can add CONTEXT_IGNORE_SECURITY to the value of flag.
    
    从以下版本开始:
    
    3
  - canRequestPermission
```
boolean canRequestPermission(String permission)
```
    Confirms with the permission management module to check whether a request prompt is required for granting a certain permission.
    You need to call the current method to check whether a prompt is required before calling requestPermissionsFromUser(java.lang.String[],int) to request a permission. If a prompt is not required, permission request will not be initiated.
    
    参数:
    
    permission - Indicates the permission to be queried. This parameter cannot be null.
    
    返回:
    
    Returns true if the current application does not have the permission and the user does not turn off further requests; returns false if the current application already has the permission, the permission is rejected by the system, or the permission is denied by the user and the user has turned off further requests.
    
    从以下版本开始:
    
    1
  - requestPermissionsFromUser
```
void requestPermissionsFromUser(String[] permissions,
                                int requestCode)
```
    Requests certain permissions from the system.
    This method is called for permission request. This is an asynchronous method. When it is executed, the Ability.onRequestPermissionsFromUserResult(int, String[], int[]) method will be called back.
    
    参数:
    
    permissions - Indicates the list of permissions to be requested. This parameter cannot be null.
    
    requestCode - Indicates the request code to be passed to the Ability.onRequestPermissionsFromUserResult(int, String[], int[]) callback method. This code cannot be a negative number.
    
    抛出:
    
    IllegalArgumentException - if requestCode is negative.
    
    从以下版本开始:
    
    1
  - connectAbility
```
boolean connectAbility(Intent intent,
                       IAbilityConnection conn)
```
    Connects the current ability to an ability using the AbilityInfo.AbilityType.SERVICE template.
    This method can be called by an ability using either the AbilityInfo.AbilityType.SERVICE or AbilityInfo.AbilityType.PAGE template, but the destination of the connection must be an ability using the AbilityInfo.AbilityType.SERVICE template. You must implement the IAbilityConnection interface to obtain the proxy of the target ability after it is connected.
    
    参数:
    
    intent - Indicates the Intent containing information about the ability to connect.
    
    conn - Indicates the callback object when the target ability is connected.
    
    返回:
    
    Returns true if the connection is successful; returns false otherwise.
    
    从以下版本开始:
    
    1
  - disconnectAbility
```
void disconnectAbility(IAbilityConnection conn)
```
    Disconnects the current ability from an ability using the AbilityInfo.AbilityType.SERVICE template.
    This method can be called by an ability using either the AbilityInfo.AbilityType.SERVICE or AbilityInfo.AbilityType.PAGE template, but the destination of the connection to disconnect must be an ability using the AbilityInfo.AbilityType.SERVICE template.
    
    参数:
    
    conn - Indicates the IAbilityConnection callback object passed by connectAbility(ohos.aafwk.content.Intent,ohos.aafwk.ability.IAbilityConnection) after the connection is set up. The IAbilityConnection object uniquely identifies a connection between two abilities.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    connectAbility(ohos.aafwk.content.Intent, IAbilityConnection)
  - setDisplayOrientation
```
void setDisplayOrientation(AbilityInfo.DisplayOrientation newOrientation)
```
    Sets the display orientation of the current ability.
    The setting takes effect only for abilities using the AbilityInfo.AbilityType.PAGE template.
    
    参数:
    
    newOrientation - Indicates the new orientation for the current ability.
    
    从以下版本开始:
    
    1
  - getBundleManager
```
IBundleManager getBundleManager()
```
    Obtains an IBundleManager instance.
    You can use this instance to obtain information about the application bundle.
    
    返回:
    
    Returns an IBundleManager instance.
    
    从以下版本开始:
    
    1
  - getBundleName
```
String getBundleName()
```
    Obtains the bundle name of the current ability.
    
    返回:
    
    Returns the bundle name of the current ability.
    
    从以下版本开始:
    
    1
  - getBundleCodePath
```
String getBundleCodePath()
```
    Obtains the path of the package containing the current ability.
    The returned path contains the resources, source code, and configuration files of a module.
    
    返回:
    
    Returns the path of the package file.
    
    从以下版本开始:
    
    1
  - getBundleResourcePath
```
String getBundleResourcePath()
```
    Obtains the path of the Ohos Ability Package (HAP} containing this ability.
    
    返回:
    
    Returns the path of the HAP containing this ability.
    
    从以下版本开始:
    
    3
  - getDataDir
```
File getDataDir()
```
    Obtains the absolute path where all private data files of this application are stored.
    
    返回:
    
    Returns the absolute path storing all private data files of this application.
    
    从以下版本开始:
    
    3
  - getCacheDir
```
File getCacheDir()
```
    Obtains the application-specific cache directory on the device's internal storage.
    The system automatically deletes files from the cache directory if disk space is required elsewhere on the device. Older files are always deleted first.
    
    返回:
    
    Returns the application-specific cache directory.
    
    另请参阅:
    
    getDir(String, int), getExternalCacheDir()
  - getCodeCacheDir
```
File getCodeCacheDir()
```
    Obtains the application-specific code-cache directory on the device's internal storage.
    The system will delete any files stored in this location both when your specific application is upgraded, and when the entire platform is upgraded.
    
    返回:
    
    Returns the application-specific code-cache directory.
  - getExternalMediaDirs
```
File[] getExternalMediaDirs()
```
    Obtains the application-specific media directories on all files where it can place.
    The system will delete all these files when your specific application is uninstalled.
    
    返回:
    
    Returns the application-specific media.
  - getNoBackupFilesDir
```
File getNoBackupFilesDir()
```
    Obtains the absolute path which app created and will be excluded from automatic backup to remote storage.
    The returned path maybe changed if the application is moved to an adopted storage device.
    
    返回:
    
    The path of the directory holding application files that will not be automatically backed up to remote storage.
  - getFilesDir
```
File getFilesDir()
```
    Obtains the directory for storing files for the application on the device's internal storage.
    
    返回:
    
    Returns the application file directory.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    getDir(String, int)
  - getDir
```
File getDir(String name,
            int mode)
```
    Obtains the directory for storing custom data files of the application.
    You can use the returned File object to create and access files in this directory. The files can be accessible only by the current application.
    
    参数:
    
    name - Indicates the name of the directory to retrieve. This directory is created as part of your application data.
    
    mode - Indicates the file operating mode. The value can be 0 or a combination of MODE_PRIVATE.
    
    返回:
    
    Returns a File object for the requested directory.
  - getExternalCacheDir
```
File getExternalCacheDir()
```
    Obtains the absolute path to the application-specific cache directory on the primary external or shared storage device.
    The application can place its cache files in this directory.
    
    返回:
    
    Returns the absolute path to the application-specific cache directory on the external or shared storage device; returns null if the external or shared storage device is temporarily unavailable.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    getCacheDir(), getExternalCacheDirs()
  - getExternalCacheDirs
```
File[] getExternalCacheDirs()
```
    Obtains the absolute paths to the application-specific cache directories on all external or shared storage devices.
    The application can place its cache files in these directories.
    
    返回:
    
    Returns the absolute paths to the application-specific cache directories on all external or shared storage devices; returns null if the external or shared storage devices are temporarily unavailable. The first path returned is the same as that returned by getExternalCacheDir().
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    getExternalCacheDir()
  - getExternalFilesDir
```
File getExternalFilesDir(String type)
```
    Obtains the absolute path to the directory for storing files for the application on the primary external or shared storage device.
    The application can place its persistent files in this directory.
    参数:
    type - Indicates the type of the file directory to return. This parameter can be null for the following directory or subdirectory:
    Root directory of the files
    
    Subdirectory of the Environment.DIRECTORY_PICTURES, Environment.DIRECTORY_DOCUMENTS, Environment.DIRECTORY_DOWNLOADS, Environment.DIRECTORY_MOVIES, or Environment.DIRECTORY_MUSIC type.
    返回:
    
    Returns the absolute path to the application file directory on the external or shared storage device; returns null if the external or shared storage device is temporarily unavailable.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    getFilesDir(), getExternalFilesDirs(String)
  - getExternalFilesDirs
```
File[] getExternalFilesDirs(String type)
```
    Obtains the absolute paths to the directories for storing files for the application on all external or shared storage devices.
    The application can place its persistent files in these directories.
    参数:
    type - Indicates the type of the file directories to return. This parameter can be null for the following directory or subdirectory:
    Root directory of the files
    
    Subdirectory of the Environment.DIRECTORY_PICTURES, Environment.DIRECTORY_DOCUMENTS, Environment.DIRECTORY_DOWNLOADS, Environment.DIRECTORY_MOVIES, or Environment.DIRECTORY_MUSIC type.
    返回:
    
    Returns the absolute paths to the application file directories on all external or shared storage devices; returns null if the external or shared storage devices are temporarily unavailable. The first path returned is the same as that returned by getExternalFilesDir(java.lang.String).
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    getExternalFilesDir(String)
  - deleteFile
```
boolean deleteFile(String fileName)
```
    Deletes the specified private file associated with the application.
    
    参数:
    
    fileName - Indicates the name of the file to delete. The file name cannot contain path separators.
    
    返回:
    
    Returns true if the file is deleted successfully; returns false otherwise.
    
    抛出:
    
    IllegalArgumentException - Throws this exception if fileName contains path separators.
    
    从以下版本开始:
    
    1
  - getAbilityManager
```
IAbilityManager getAbilityManager()
```
    Obtains an ability manager.
    The ability manager provides information about running processes and memory usage of an application.
    
    返回:
    
    Returns an IAbilityManager instance.
    
    从以下版本开始:
    
    1
  - terminateAbilityResult
```
boolean terminateAbilityResult(int startId)
```
    Destroys this Service ability if the number of times it has been started equals the number represented by the given startId. This method is the same as calling terminateAbility() to destroy this Service ability, except that this method helps you avoid destroying it if a client has requested a Service ability startup in Ability.onCommand(ohos.aafwk.content.Intent, boolean) but you are unaware of it.
    
    参数:
    
    startId - Indicates the number of startup times of this Service ability passed to Ability.onCommand(ohos.aafwk.content.Intent, boolean). The startId is incremented by 1 every time this ability is started. For example, if this ability has been started for six times, the value of startId is 6.
    
    返回:
    
    Returns true if the startId matches the number of startup times and this Service ability will be destroyed; returns false otherwise.
    
    从以下版本开始:
    
    3
  - getDisplayOrientation
```
int getDisplayOrientation()
```
    Obtains the current display orientation of this ability.
    
    返回:
    
    Returns the current display orientation.
    
    从以下版本开始:
    
    3
  - setShowOnLockScreen
```
void setShowOnLockScreen(boolean showOnLockScreen)
```
    Sets whether to show this ability on top of the lock screen whenever the lock screen is displayed, keeping the ability in the ACTIVE state.
    
    参数:
    
    showOnLockScreen - Specifies whether to show this ability on top of the lock screen. The value true means to show it on the lock screen, and the value false means not.
    
    从以下版本开始:
    
    3
  - setWakeUpScreen
```
void setWakeUpScreen(boolean wakeUpScreen)
```
    Sets whether to wake up the screen when this ability is restored.
    This method takes effect only on abilities visible to users after the screen is woken up.
    
    参数:
    
    wakeUpScreen - Specifies whether to wake up the screen. The value true means to wake it up, and the value false means not.
    
    从以下版本开始:
    
    3
  - restart
```
void restart()
```
    Restarts this ability using a new instance. This is similar to the process of restarting an instance for this ability when it is destroyed due to a system configuration change.
    This method takes effect only for abilities using the AbilityInfo.AbilityType.PAGE template.
    
    从以下版本开始:
    
    3
  - setTransitionAnimation
```
void setTransitionAnimation(int enterAnim,
                            int exitAnim)
```
    Sets the transition animation between two abilities.
    This method must be called after startAbility(ohos.aafwk.content.Intent,int) is called.
    
    参数:
    
    enterAnim - Indicates the resource ID of the animation for the incoming ability.
    
    exitAnim - Indicates the resource ID of the animation for the outgoing ability.
    
    从以下版本开始:
    
    3
  - isUpdatingConfigurations
```
boolean isUpdatingConfigurations()
```
    Checks whether the configuration of this ability is changing
    Generally, such change information is used in Ability.onStop() for determining how to handle resources referenced by this ability.
    
    返回:
    
    Returns true if the configuration is changing, for example, if the display orientation of the device is changing; returns false otherwise.
    
    从以下版本开始:
    
    3
  - setTheme
```
void setTheme(int themeId)
```
    Sets the theme of this Context based on the specified theme ID.
    
    参数:
    
    themeId - Indicates the resource ID of the theme to set.
  - getTheme
```
Theme getTheme()
```
    Obtains the theme of this Context.
    This method is valid only when a theme has been set by calling setTheme(int).
    
    返回:
    
    theme Returns the theme of this Context.
  - getThemeId
```
int getThemeId()
```
    Obtains the theme id of this Context.
    
    返回:
    
    int Returns the theme id of this Context.
  - setPattern
```
void setPattern(int patternId)
```
    Sets the pattern of this Context based on the specified pattern ID.
    
    参数:
    
    patternId - Indicates the resource ID of the pattern to set.
  - getPattern
```
Pattern getPattern()
```
    Obtains the pattern of this Context.
    This method is valid only when a pattern has been set by calling setPattern(int).
    
    返回:
    
    pattern Returns the pattern of this Context.
  - getAppType
```
String getAppType()
```
    Obtains the type of this application.
    
    返回:
    
    Returns system if this application is a system application; returns normal if it is released in Ohos AppGallery; returns other if it is released by a third-party vendor; returns an empty string if the query fails.
  - getResourceManager
```
ResourceManager getResourceManager(Configuration configuration)
```
    Obtains a resource manager based on the specified Configuration object.
    
    参数:
    
    configuration - Indicates the Configuration object containing the resource configuration information.
    
    返回:
    
    Returns the obtained ResourceManager object.
    
    从以下版本开始:
    
    4
  - getLastStoredDataWhenConfigChanged
```
Object getLastStoredDataWhenConfigChanged()
```
    Obtains the most recent data saved via Ability.onStoreDataWhenConfigChange() when the system configuration is changed.
    
    返回:
    
    Returns the saved data object.
    
    从以下版本开始:
    
    4
  - printDrawnCompleted
```
void printDrawnCompleted()
```
    Prints out the time required for the system to complete drawing this Page ability.
    
    从以下版本开始:
    
    4
  - compelVerifyPermission
```
void compelVerifyPermission(String permission,
                            String message)
```
    Checks whether a specified permission has been granted to the calling process, and throws a SecurityException if the permission is not granted.
    
    参数:
    
    permission - Indicates the permission to check.
    
    message - Indicates the information to be displayed in the SecurityEexception if it is thrown.
    
    抛出:
    
    SecurityException - Throws this exception if the calling process does not have the specified permission.
    
    从以下版本开始:
    
    4
  - compelVerifyUriPermission
```
void compelVerifyUriPermission(Uri uri,
                               int modeFlags,
                               String message)
```
    Checks whether the calling process has the permission to access a specified URI, and throws a SecurityException if it does not have the permission.
    
    参数:
    
    uri - Indicates the URI to check. This parameter cannot be null.
    
    modeFlags - Indicates the access modes to check. The value can be ohos.aafwk.content.Intent#FLAG_AUTH_READ_URI_PERMISSION, ohos.aafwk.content.Intent#FLAG_AUTH_WRITE_URI_PERMISSION, or a combination of them.
    
    message - Indicates the information to be displayed in the SecurityEexception if it is thrown.
    
    抛出:
    
    SecurityException - Throws this exception if the calling process does not have the permission.
    
    从以下版本开始:
    
    4
  - compelVerifyCallerPermission
```
void compelVerifyCallerPermission(String permission,
                                  String message)
```
    Checks whether a specified permission has been granted to the calling process for inter-process communication (IPC), and throws a SecurityException if the permission is not granted. This method also throws a SecurityException if you are currently not involved in an IPC.
    
    参数:
    
    permission - Indicates the permission to check.
    
    message - Indicates the information to be displayed in the SecurityEexception if it is thrown.
    
    抛出:
    
    SecurityException - Throws this exception if the calling process does not have the specified permission or if you are currently not involved in an IPC.
    
    从以下版本开始:
    
    4
  - compelVerifyCallerUriPermission
```
void compelVerifyCallerUriPermission(Uri uri,
                                     int modeFlags,
                                     String message)
```
    Checks whether the calling process for IPC has the permission to access a specified URI, and throws a SecurityException if it does not have the permission. This method also throws a SecurityException if you are currently not involved in an IPC.
    
    参数:
    
    uri - Indicates the URI to check. This parameter cannot be null.
    
    modeFlags - Indicates the access modes to check. The value can be ohos.aafwk.content.Intent#FLAG_AUTH_READ_URI_PERMISSION, ohos.aafwk.content.Intent#FLAG_AUTH_WRITE_URI_PERMISSION, or a combination of them.
    
    message - Indicates the information to be displayed in the SecurityEexception if it is thrown.
    
    抛出:
    
    SecurityException - Throws this exception if the calling process does not have the permission or if you are currently not involved in an IPC.
    
    从以下版本开始:
    
    4
  - compelVerifyPermission
```
void compelVerifyPermission(String permission,
                            int pid,
                            int uid,
                            String message)
```
    Checks whether a specified permission has been granted to the process identified by pid and uid, and throws a SecurityException if the permission is not granted.
    
    参数:
    
    permission - Indicates the permission to check.
    
    pid - Indicates the ID of the process to check.
    
    uid - Indicates the UID of the process to check.
    
    message - Indicates the information to be displayed in the SecurityEexception if it is thrown.
    
    抛出:
    
    SecurityException - Throws this exception if the process with the specified PID and UID does not have the specified permission.
    
    从以下版本开始:
    
    4
  - compelVerifyUriPermission
```
void compelVerifyUriPermission(Uri uri,
                               int pid,
                               int uid,
                               int modeFlags,
                               String message)
```
    Checks whether the process identified by pid and uid has the permission to access a specified URI, and throws a SecurityException if it does not have the permission.
    
    参数:
    
    uri - Indicates the URI to check. This parameter cannot be null.
    
    pid - Indicates the ID of the process to check.
    
    uid - Indicates the UID of the process to check.
    
    modeFlags - Indicates the access modes to check. The value can be ohos.aafwk.content.Intent#FLAG_AUTH_READ_URI_PERMISSION, ohos.aafwk.content.Intent#FLAG_AUTH_WRITE_URI_PERMISSION, or a combination of them.
    
    message - Indicates the information to be displayed in the SecurityEexception if it is thrown.
    
    抛出:
    
    SecurityException - Throws this exception if the process with the specified PID and UID does not have the permission.
    
    从以下版本开始:
    
    4
  - compelVerifyUriPermission
```
void compelVerifyUriPermission(Uri uri,
                               String readPermission,
                               String writePermission,
                               int pid,
                               int uid,
                               int modeFlags,
                               String message)
```
    Checks whether the process identified by pid and uid has specified read and write permissions as well as the permission to access a specified URI, and throws a SecurityException if it does not have the permissions.
    
    参数:
    
    uri - Indicates the URI to check. This parameter cannot be null.
    
    readPermission - Indicates the read permission to check.
    
    writePermission - Indicates the write permission to check.
    
    pid - Indicates the ID of the process to check.
    
    uid - Indicates the UID of the process to check.
    
    modeFlags - Indicates the access modes to check. The value can be ohos.aafwk.content.Intent#FLAG_AUTH_READ_URI_PERMISSION, ohos.aafwk.content.Intent#FLAG_AUTH_WRITE_URI_PERMISSION, or a combination of them.
    
    message - Indicates the information to be displayed in the SecurityEexception if it is thrown.
    
    抛出:
    
    SecurityException - Throws this exception if the process with the specified PID and UID does not have the permissions.
    
    从以下版本开始:
    
    4
  - getColor
```
int getColor(int resId)
```
    Get the color of this Context based on the specified resource ID.
    
    参数:
    
    resId - Indicates the resource ID of the color to get.
    
    返回:
    
    Returns the color value of this Context.
    
    从以下版本开始:
    
    5
  - getString
```
String getString(int resId)
```
    Get the string of this Context based on the specified resource ID.
    
    参数:
    
    resId - Indicates the resource ID of the string to get.
    
    返回:
    
    Returns the string of this Context.
    
    从以下版本开始:
    
    5
  - getString
```
String getString(int resId,
                 Object... formatArgs)
```
    Get the string of this Context based on the specified resource ID and formatArgs.
    
    参数:
    
    resId - Indicates the resource ID of the string to get.
    
    formatArgs - Indicates the formatted objects used for substitution.
    
    返回:
    
    Returns the string of this Context.
    
    从以下版本开始:
    
    5
  - getStringArray
```
String[] getStringArray(int resId)
```
    Get the string array of this Context based on the specified resource ID.
    
    参数:
    
    resId - Indicates the resource ID of the string array to get.
    
    返回:
    
    Returns the string array of this Context.
    
    从以下版本开始:
    
    5
  - getIntArray
```
int[] getIntArray(int resId)
```
    Get the integer array of this Context based on the specified resource ID.
    
    参数:
    
    resId - Indicates the resource ID of the integer array to get.
    
    返回:
    
    Returns the integer array of this Context.
    
    从以下版本开始:
    
    5
  - getProcessName
```
String getProcessName()
```
    Obtains the name of the current process.
    
    返回:
    
    Returns the current process name.
    
    从以下版本开始:
    
    4
  - getAbilityPackageContext
```
Context getAbilityPackageContext()
```
    Obtains the Context object of this ability.
    This method cannot be used to obtain the context of the application.
    
    返回:
    
    Returns the Context object of this ability.
    
    从以下版本开始:
    
    4
  - getHapModuleInfo
```
HapModuleInfo getHapModuleInfo()
```
    Obtains the HapModuleInfo object of the application.
    
    返回:
    
    Returns the HapModuleInfo object of the application.
    
    从以下版本开始:
    
    4
  - getCaller
```
Uri getCaller()
```
    Obtains information about the caller of this ability.
    
    返回:
    
    Returns the caller information.
    
    从以下版本开始:
    
    4
  - setColorMode
```
void setColorMode(int mode)
```
    Set color mode.
    
    参数:
    
    mode - the value of color mode.
    
    从以下版本开始:
    
    5
  - getColorMode
```
int getColorMode()
```
    Obtains color mode.
    
    返回:
    
    Returns the color mode value.
    
    从以下版本开始:
    
    5

接口 Context

字段概要

方法概要

字段详细资料

CONTEXT_IGNORE_SECURITY

CONTEXT_INCLUDE_CODE

CONTEXT_RESOUCE_ONLY

CONTEXT_RESTRICTED

MODE_APPEND

MODE_PRIVATE

方法详细资料

createParallelTaskDispatcher

createSerialTaskDispatcher

getGlobalTaskDispatcher

getMainTaskDispatcher

getUITaskDispatcher

getApplicationInfo

getProcessInfo

getAbilityInfo

getResourceManager

getPreferencesDir

getDatabaseDir

getDistributedDir

switchToDeviceEncryptedStorageContext

switchToCredentialEncryptedStorageContext

isDeviceEncryptedStorage

isCredentialEncryptedStorage

verifyCallingPermission

verifySelfPermission

verifyCallingOrSelfPermission

verifyPermission

getClassloader

getApplicationContext

terminateAbility

terminateAbility

displayUnlockMissionMessage

lockMission

unlockMission

getLocalClassName

getElementName

getCallingAbility

getCallingBundle

stopAbility

startAbility

startAbility

startAbility

startAbilities

createBundleContext

canRequestPermission

requestPermissionsFromUser

connectAbility

disconnectAbility

setDisplayOrientation

getBundleManager

getBundleName

getBundleCodePath

getBundleResourcePath

getDataDir

getCacheDir

getCodeCacheDir

getExternalMediaDirs

getNoBackupFilesDir

getFilesDir

getDir

getExternalCacheDir

getExternalCacheDirs

getExternalFilesDir

getExternalFilesDirs

deleteFile

getAbilityManager

terminateAbilityResult

getDisplayOrientation

setShowOnLockScreen

setWakeUpScreen

restart

setTransitionAnimation

isUpdatingConfigurations

setTheme

getTheme

getThemeId