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Added in API level 1

public static interface DialogInterface.OnKeyListener

android.content.DialogInterface.OnKeyListener

将关键事件分派到此对话框时调用回调的接口定义。在将键盘事件赋予对话框之前，将调用回调。

Public methods
`abstract boolean`	`onKey(DialogInterface dialog, int keyCode, KeyEvent event)` 当一个键被分派到一个对话框时调用。

Added in API level 1

boolean onKey (DialogInterface dialog, 
                int keyCode, 
                KeyEvent event)

当一个键被分派到一个对话框时调用。这使听众有机会在对话之前做出回应。

Parameters
`dialog`	`DialogInterface`: The dialog 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.