Android - Event Handling

最新推荐文章于 2024-07-19 19:54:32 发布

原创最新推荐文章于 2024-07-19 19:54:32 发布 · 492 阅读

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本文介绍了 Android 中的事件监听机制，包括事件监听器的概念、注册过程及事件处理方法。事件监听器作为 View 类的一个接口，包含回调方法，用于响应用户界面交互。

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Event Listeners − An event listener is an interface in the View class that contains a single callback method. These methods will be called by the Android framework when the View to which the listener has been registered is triggered by user interaction with the item in the UI.
Event Listeners Registration − Event Registration is the process by which an Event Handler gets registered with an Event Listener so that the handler is called when the Event Listener fires the event.
Event Handlers − When an event happens and we have registered and event listener for the event, the event listener calls the Event Handlers, which is the method that actually handles the event.