程序包 ohos.aafwk.ability.fraction

类 FractionManager

java.lang.Object

ohos.aafwk.ability.fraction.FractionManager

public class FractionManager
extends Object

Provides methods for managing the lifecycle of a Fraction.

从以下版本开始:

4

SystemCapability

SystemCapability.Aafwk#ABILITY

方法概要

限定符和类型	方法	说明
Optional<Fraction>	getFractionByTag(String tag)	Obtains a Fraction instance associated with the ability based on the specified tag.
void	popFromStack()	Removes the Fraction instance from the stack and returns the execution result.
void	popFromStack(String tag, int flags)	Removes particular Fraction instances based on the specified tag from the stack.
FractionScheduler	startFractionScheduler()	Starts a Fraction transaction.

从类继承的方法 java.lang.Object

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

方法详细资料

startFractionScheduler

public FractionScheduler startFractionScheduler()

Starts a Fraction transaction.

A Fraction transaction can be operations such as add, remove, hide, show, and replace.

返回:

Returns the FractionScheduler instance used to perform the Fraction transaction.

从以下版本开始:

4

popFromStack

public void popFromStack()

Removes the Fraction instance from the stack and returns the execution result.

This method removes the Fraction instance located at the top of the stack and then displays the next Fraction instance in the stack.

从以下版本开始:

4

popFromStack

public void popFromStack(String tag,
                         int flags)

Removes particular Fraction instances based on the specified tag from the stack. If flag is 0, this method removes all Fraction instances located above the instance with the given tag. If flag is 1, this method removes the Fraction instance with the given tag and all instances located above it from the stack.

This method removes specified Fraction instances from the top of the stack and then displays the next Fraction instance in the stack.

参数:

tag - Indicates the name of the Fraction instance used to determine which instances to remove.

flags - Specifies whether to remove the Fraction instance with the given tag.

从以下版本开始:

4

getFractionByTag

public Optional<Fraction> getFractionByTag(String tag)

Obtains a Fraction instance associated with the ability based on the specified tag.

参数:

tag - Indicates the name of the Fraction instance to obtain.

返回:

Returns the Fraction instance with the specified tag if found; returns null otherwise.

从以下版本开始:

4