在iPad上按下如何检测取消停靠，停靠或拆分（iOS 5） [英] How to detect undock, dock or split is pressed on iPad (iOS 5)

问题描述

我正在尝试检测我的iPad上是否按下了停靠键。此停靠键是iOS 5中的新功能。按下此键后，键盘将消失。我需要检测它。按下此键时，我需要更改视图的框架，但按下此键无法获得任何事件。

I am trying to detect dock key is pressed or not on my iPad. This dock key is a new feature in iOS 5. When this key is pressed the keyboard disappears. I need to detect it. When this key is pressed I need to change the frame of my view, but I couldn't get any event by pressing this key.

我正在尝试使用以下内容函数：

I am trying to use the following function:

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {
    NSLog(@"TEXT: %@", text);
    return YES;
}

当我按下A时，调用此函数并打印TEXT：A，但是当按下停靠键时，没有调用此功能！

When I pressed 'A' this function is called and print TEXT: A, but when dock key is pressed, this function wasn't called!

有没有办法在iPad上检测停靠键？为了便于说明，可以在键盘右下角的iPad（仅限iOS 5）上使用停靠键。

Is there a way to detect dock key on iPad? For clarification, the dock key is available on iPad (only in iOS 5) at the bottom right corner of the keyboard.

ANSWER ::::

我在viewDidLoad中使用了以下代码：

I used the following code in viewDidLoad:

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide) name:UIKeyboardWillHideNotification object:nil];

我在方法中得到了事件 - （无效）keyboardWillHide

and I got the event in method -(void)keyboardWillHide

-(void)keyboardWillHide
{
    NSLog(@"Pressed...");
}

感谢borrrden。

thanks borrrden.

推荐答案

当用户按下停靠键时，将通过NSNotificationCenter的UIKeyboardWillHideNotification通知您。

When the user presses the dock key, you will be notified via the UIKeyboardWillHideNotification from NSNotificationCenter.

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