程序包 ohos.aafwk.ability

类 ViewListener

java.lang.Object

ohos.aafwk.ability.ViewListener

直接已知子类:

OnClickListener

public abstract class ViewListener
extends Object

A base class used to provide callback methods that are registered with the AbilityForm supplier to listen for click or touch events.

Currently, the system provides a child class OnClickListener for a callback upon click events. You can inherit the ViewListener class to add other callback methods as required.

从以下版本开始:

1

SystemCapability

SystemCapability.Aafwk#ABILITY

构造器概要

构造器

构造器	说明
ViewListener()

方法概要

限定符和类型	方法	说明
abstract void	onTouchEvent(AbilityForm form, ViewsStatus viewsStatus)	A callback method registered with the AbilityForm supplier for you to implement callbacks upon touch events.

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

ViewListener

public ViewListener()

方法详细资料

onTouchEvent

public abstract void onTouchEvent(AbilityForm form,
                                  ViewsStatus viewsStatus)

A callback method registered with the AbilityForm supplier for you to implement callbacks upon touch events.

Generally, this method is triggered in the following scenario:

1. The developer of the supplier uses AbilityForm#registerViewListener(int, ViewListener) to register a callback method upon touch events.
2. When a touch event is dispatched to a component on the client, the event is sent to the supplier through the AbilityForm framework, and the AbilityForm framework triggers the registered callback method ViewListener#onTouchEvent(AbilityForm, ViewsStatus).

参数:

form - Indicates the AbilityForm object provided by the supplier.

viewsStatus - Indicates the status of components for which a listener has been set on the client.

从以下版本开始:

1