程序包 ohos.agp.components

接口 Component.KeyEventListener

封闭类:

Component

public static interface Component.KeyEventListener

Provides a callback to be invoked when a key event is dispatched from a component.

This callback will be invoked before the component receives the event. The listener is valid only when a physical keyboard is used.

方法概要

限定符和类型	方法	说明
boolean	onKeyEvent(Component component, KeyEvent event)	Processes a key event dispatched to a component.

方法详细资料

onKeyEvent

boolean onKeyEvent(Component component,
                   KeyEvent event)

Processes a key event dispatched to a component.

The listener responds to a key event before the component receives the event.

参数:

component - Indicates the component to which the key event is dispatched.

event - Indicates all information about the key event.

返回:

Returns true if the listener has processed the event; returns false otherwise.