监听键盘弹出|监听键盘弹出 iOS

//增加监听,当键盘出现或改变时收出消息
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification
object:nil];
//增加监听,当键退出时收出消息
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillHide:)
name:UIKeyboardWillHideNotification
object:nil];
【监听键盘弹出|监听键盘弹出 iOS】//当键盘出现或改变时调用

  • (void)keyboardWillShow:(NSNotification *)aNotification {
    //获取键盘的高度
    NSDictionary *userInfo = [aNotification userInfo];
    NSValue *aValue = https://www.it610.com/article/[userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
    CGRect keyboardRect = [aValue CGRectValue];
    int height = keyboardRect.size.height;
    // 需要进行的操作
    }
    //当键退出时调用
  • (void)keyboardWillHide:(NSNotification *)aNotification {
    // 界面复原
    }

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