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iOS键盘中英文切换键盘高度获取通知方法

iOS键盘中英文切换键盘高度获取通知方法,

有需要的朋友可以参考下。

 

注册通知

- (void)viewWillAppear:(BOOL)animated{    [super viewWillAppear:animated];    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChangeFrame:) name:UIKeyboardWillChangeFrameNotification object:nil];}

移除通知

- (void)viewDidDisappear:(BOOL)animated{    [super viewDidDisappear:animated];    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillChangeFrameNotification object:nil];}

通知调用方法

-(void)keyboardWillChangeFrame:(NSNotification*)notification{    NSDictionary *userInfo = [notification userInfo];    NSValue* aValue = http://www.mamicode.com/[userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];//更改后的键盘        CGRect keyboardRect = [aValue CGRectValue];    CGFloat height = keyboardRect.size.height;    NSValue *animationDurationValue =http://www.mamicode.com/ [userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];    NSTimeInterval animationDuration;    [animationDurationValue getValue:&animationDuration];        //以下为你要改变的View的Fram    myView.frame = CGRectMake(0, self.view.frame.size.height-height-50, 320, 50);}