UIView隐藏在键盘显示

Question

当键盘显示或点击Textfield时弹出隐藏的UIView !

My Code for KeyBoard show:

func keyboardWillShow(notification: NSNotification) {
    if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue() {
        if self.view.frame.origin.y == 0 {
             self.view.frame.origin.y -= keyboardSize.height
        }
    }
}
func keyboardWillHide(notification: NSNotification) {
    if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue() {
        if self.view.frame.origin.y != 0 {
            self.view.frame.origin.y += keyboardSize.height
        }
    }
}

Answer 1

当键盘显示时设置UIView框架的代码是错误的。

代替

self.view.frame.origin.y -= keyboardSize.height

self.view.frame.origin.y = UIScreen.mainScreen().bounds.size.height - (keyboardSize.height + self.view.frame.size.height)