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Added in API level 1

Summary: Methods | [Expand All]

public static interface View.OnKeyListener

android.view.View.OnKeyListener

Known Indirect Subclasses

将硬件按键事件分派到此视图时调用回调的接口定义。在键事件被赋予视图之前，回调将被调用。这只对硬件键盘有用; 一个软件输入法没有义务触发这个监听器。

Public methods
`abstract boolean`	`onKey(View v, int keyCode, KeyEvent event)` 当硬件密钥分派到视图时调用。

Added in API level 1

boolean onKey (View v, 
                int keyCode, 
                KeyEvent event)

当硬件密钥分派到视图时调用。这使听众有机会在目标视图之前做出回应。

软件键盘中的按键通常不会触发这种方法，尽管在某些情况下有些人会选择这样做。不要假设软件输入法必须是基于键的; 即使是这样，它也可能以不同于预期的方式使用按键，因此无法可靠地捕捉到软输入按键。

Parameters
`v`	`View`: The view the key has been dispatched to.
`keyCode`	`int`: The code for the physical key that was pressed
`event`	`KeyEvent`: The KeyEvent object containing full information about the event.

Returns
`boolean`	True if the listener has consumed the event, false otherwise.