程序包 ohos.aafwk.ability

类 SystemMemoryInfo

java.lang.Object

ohos.aafwk.ability.SystemMemoryInfo

所有已实现的接口:

Sequenceable

public class SystemMemoryInfo
extends Object
implements Sequenceable

Provides system memory information that you can obtain by calling IAbilityManager.getSystemMemoryInfo(ohos.aafwk.ability.SystemMemoryInfo).

从以下版本开始:

3

SystemCapability

SystemCapability.Aafwk#ABILITY

嵌套类概要

从接口继承的嵌套类/接口 ohos.utils.Sequenceable

Sequenceable.Producer<T>

构造器概要

构造器

构造器	说明
SystemMemoryInfo()	A constructor used to create a SystemMemoryInfo instance.

方法概要

限定符和类型	方法	说明
long	getAvailSysMem()	Obtains the available system memory.
long	getThreshold()	Obtains the threshold of the available system memory, against which the system considers the memory low and starts to kill background services and other irrelevant processes.
long	getTotalSysMem()	Obtains the total system memory that is accessible by the kernel.
boolean	isLowSysMemory()	Checks whether the system memory is low.
boolean	marshalling(Parcel out)	Marshals this Sequenceable object into a Parcel.
boolean	unmarshalling(Parcel in)	Unmarshals this Sequenceable object from a Parcel.

从类继承的方法 java.lang.Object

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

从接口继承的方法 ohos.utils.Sequenceable

hasFileDescriptor

构造器详细资料

SystemMemoryInfo

public SystemMemoryInfo()

A constructor used to create a SystemMemoryInfo instance.

从以下版本开始:

3

方法详细资料

getAvailSysMem

public long getAvailSysMem()

Obtains the available system memory.

返回:

Returns the system available memory size, in bytes.

从以下版本开始:

3

getTotalSysMem

public long getTotalSysMem()

Obtains the total system memory that is accessible by the kernel.

返回:

Returns the total system memory size that is accessible by the kernel, in bytes.

从以下版本开始:

3

getThreshold

public long getThreshold()

Obtains the threshold of the available system memory, against which the system considers the memory low and starts to kill background services and other irrelevant processes.

返回:

Returns the threshold of the available system memory, in bytes.

从以下版本开始:

3

isLowSysMemory

public boolean isLowSysMemory()

Checks whether the system memory is low. The system memory is considered low if it is lower than the threshold of the available system memory.

返回:

Returns true if the current memory is low; returns false otherwise.

从以下版本开始:

3

marshalling

public boolean marshalling(Parcel out)

从接口复制的说明: Sequenceable

Marshals this Sequenceable object into a Parcel.

指定者:

marshalling 在接口中 Sequenceable

参数:

out - Indicates the Parcel object to which the Sequenceable object will be marshaled..

返回:

Returns true if the marshalling is successful; returns false otherwise.

unmarshalling

public boolean unmarshalling(Parcel in)

从接口复制的说明: Sequenceable

Unmarshals this Sequenceable object from a Parcel.

指定者:

unmarshalling 在接口中 Sequenceable

参数:

in - Indicates the Parcel object into which the Sequenceable object has been marshaled.

返回:

Returns true if the unmarshalling is successful; returns false otherwise.