Android 查看 performClick() 和 callOnClick() 的区别 [英] Android View performClick() and callOnClick() difference

问题描述

performClick() 和 callOnClick() 在用法上有什么区别?看起来都是一样的，那为什么View有两个方法呢?

解决方案

这两种方法的 Javadoc 也一目了然:

public boolean performClick()

<块引用>

在 API 级别 1

中添加

调用此视图的 OnClickListener(如果已定义).执行所有与点击相关的正常操作:报告可访问性事件、播放声音等

<小时>

public boolean callOnClick()

<块引用>

在 API 级别 15 中添加

直接调用任何附加的 OnClickListener.与 performClick() 不同，这仅调用侦听器，不执行任何关联的单击报告无障碍事件等操作.

What is the difference in usage between performClick() and callOnClick()? It seems that they work the same way, then why does View have two methods?

解决方案

The Javadoc for both methods is pretty self-explanatory too:

public boolean performClick ()

Added in API level 1

Call this view's OnClickListener, if it is defined. Performs all normal actions associated with clicking: reporting accessibility event, playing a sound, etc.

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public boolean callOnClick ()

Added in API level 15

Directly call any attached OnClickListener. Unlike performClick(), this only calls the listener, and does not do any associated clicking actions like reporting an accessibility event.

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