程序包 ohos.powermanager

类 PowerManager

java.lang.Object

ohos.powermanager.PowerManager

public class PowerManager
extends Object

Provides interfaces to manage power.

The interfaces can be used to restart the system, use RunningLock, and obtain the power status DevicePowerStatusInfo.

从以下版本开始:

1

SystemCapability

SystemCapability.PowerMgr#POWER_MANAGER

嵌套类概要

嵌套类

限定符和类型	类	说明
static class	PowerManager.PowerState	Indicates the power status of a device.
class	PowerManager.RunningLock	Provides a mechanism to prevent the system from hibernating so that the applications can run in the background or when the screen is off.
static class	PowerManager.RunningLockType	Enumerates the RunningLock types.

构造器概要

构造器

构造器	说明
PowerManager()

方法概要

限定符和类型	方法	说明
PowerManager.RunningLock	createRunningLock(String name, PowerManager.RunningLockType type)	Creates a RunningLock object.
DevicePowerStatusInfo	getCurrentPowerStatusInfo()	已过时。 This change is effective since API version 7
boolean	isRunningLockTypeSupported(PowerManager.RunningLockType type)	Checks whether the specified RunningLockType is supported.
boolean	isScreenOn()	Checks whether the screen of a device is on or off.
void	rebootDevice(String reason)	Restarts the system.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

PowerManager

public PowerManager()

方法详细资料

rebootDevice

public void rebootDevice(String reason)

Restarts the system.

This method requires the ohos.permission.REBOOT or ohos.permission.REBOOT_RECOVERY permission.

参数:

reason - Indicates the restart reason. For example, recovery indicates entering the recovery mode after the restart. If the parameter is not specified, the system enters the normal mode after the restart.

从以下版本开始:

1

getCurrentPowerStatusInfo

@Deprecated
public DevicePowerStatusInfo getCurrentPowerStatusInfo()

已过时。 This change is effective since API version 7

Obtains the DevicePowerStatusInfo interface.

The DevicePowerStatusInfo interface can be used to obtain power status information.

返回:

Returns the DevicePowerStatusInfo interface.

从以下版本开始:

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isRunningLockTypeSupported

public boolean isRunningLockTypeSupported(PowerManager.RunningLockType type)

Checks whether the specified RunningLockType is supported.

参数:

type - Indicates the specified RunningLockType.

返回:

Returns true if the specified RunningLockType is supported; returns false otherwise.

从以下版本开始:

4

createRunningLock

public PowerManager.RunningLock createRunningLock(String name,
                                                  PowerManager.RunningLockType type)

Creates a RunningLock object.

This method requires the ohos.permission.RUNNING_LOCK permission.

The RunningLock object can be used to perform a lock operation to prevent the system from hibernating.

参数:

name - Indicates the RunningLock name. A recommended name consists of the package or class name and a suffix.

type - Indicates the RunningLockType.

返回:

Returns the RunningLock object.

从以下版本开始:

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isScreenOn

public boolean isScreenOn()

Checks whether the screen of a device is on or off.

返回:

Returns true if the screen is on; returns false otherwise.

从以下版本开始:

1