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问题描述
我想知道在按下以下键时将调用哪个方法。
I want to know that which method will be called when the following key is pressed.
我想在上面按键开始动作。
I want to start action on above key press.
我怎么知道这被按下了？
How do I know this is pressed ?
推荐答案
观察 UIKeyboardDidHideNotification 通知。
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidHide:) name:UIKeyboardDidHideNotification object:nil];
并且......
- (void)keyboardDidHide:(NSNotification *)aNotification {
}
如果您需要在键盘开始消失之前收到通知，您也可以将其更改为 UIKeyboardWillHideNotification 。
You can also change it to UIKeyboardWillHideNotification if you need to be notified BEFORE the keyboard starts to disappear.
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