程序包 ohos.agp.components

类 AbsComponentSaveState

java.lang.Object

ohos.agp.components.AbsComponentSaveState

所有已实现的接口:

Sequenceable

直接已知子类:

ComponentSaveState

public abstract class AbsComponentSaveState
extends Object
implements Sequenceable

An abstract class that implements Sequenceable to ensure that the states of all child classes of the Component are saved in method chaining mode.

All component states must inherit this class. The state of the superclass of a component is saved in this class.

从以下版本开始:

7

嵌套类概要

从接口继承的嵌套类/接口 ohos.utils.Sequenceable

Sequenceable.Producer<T>

字段概要

字段

限定符和类型	字段	说明
static AbsComponentSaveState	EMPTY_STATE	Indicates that no component state is saved.
static Sequenceable.Producer<AbsComponentSaveState>	PRODUCER	Creates an AbsComponentSaveState object based on a Parcel object.

构造器概要

构造器

限定符	构造器	说明
protected	AbsComponentSaveState(Parcel in)	Constructor used to create an AbsComponentSaveState object based on a Parcel object.
protected	AbsComponentSaveState(Parcel in, ClassLoader classLoader)	Constructor used to create an AbsComponentSaveState object based on Parcel and ClassLoader objects.
protected	AbsComponentSaveState(Sequenceable superState)	Constructor used to create an AbsComponentSaveState object based on the superState.

方法概要

限定符和类型	方法	说明
Sequenceable	getSuperState()	Obtains the state of the superclass of this component.
boolean	marshalling(Parcel parcel)	Marshals this Sequenceable object into a Parcel.
boolean	unmarshalling(Parcel parcel)	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

字段详细资料

EMPTY_STATE

public static final AbsComponentSaveState EMPTY_STATE

Indicates that no component state is saved.

PRODUCER

public static final Sequenceable.Producer<AbsComponentSaveState> PRODUCER

Creates an AbsComponentSaveState object based on a Parcel object.

构造器详细资料

AbsComponentSaveState

protected AbsComponentSaveState(Sequenceable superState)

Constructor used to create an AbsComponentSaveState object based on the superState. This method is called by a derived class.

参数:

superState - Indicates the state of the superclass of this component.

AbsComponentSaveState

protected AbsComponentSaveState(Parcel in)

Constructor used to create an AbsComponentSaveState object based on a Parcel object.

参数:

in - Indicates the Parcel object from which the component reads data.

AbsComponentSaveState

protected AbsComponentSaveState(Parcel in,
                                ClassLoader classLoader)

Constructor used to create an AbsComponentSaveState object based on Parcel and ClassLoader objects.

参数:

in - Indicates the Parcel object from which the component reads data.

classLoader - Indicates the ClassLoader object to use.

方法详细资料

getSuperState

public final Sequenceable getSuperState()

Obtains the state of the superclass of this component.

返回:

Returns the state of the superclass of this component.

marshalling

public boolean marshalling(Parcel parcel)

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:

parcel - 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 parcel)

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:

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

返回:

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