我正在使用下面的代码在显示和隐藏键盘时调整当前视图。当键盘显示代码时,该代码有效,但是当其隐藏时,视图可滑动地在底部移动,并在顶部保留黑色空间。 如何解决?
@objc func keyboardWillAppear(notification: Notification){
if let keyboardFrame: NSValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue {
let keyboardRectangle = keyboardFrame.cgRectValue
let keyboardHeight = keyboardRectangle.height
self.view.frame.origin.y = -keyboardHeight/2
}
}
@objc func keyboardWillHide(notification: Notification){
if let keyboardFrame: NSValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue {
let keyboardRectangle = keyboardFrame.cgRectValue
let keyboardHeight = keyboardRectangle.height
self.view.frame.origin.y = +keyboardHeight/2
}
}
您可以变换视图而不是分配给原点
@objc func keyboardWillAppear(notification: Notification){
if let keyboardFrame: NSValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue {
let keyboardRectangle = keyboardFrame.cgRectValue
let keyboardHeight = keyboardRectangle.height
self.view.transform = CGAffineTransform(translationX: 0, y: -keyboardHeight/2)
}
}
@objc func keyboardWillHide(notification: Notification){
if let keyboardFrame: NSValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue {
let keyboardRectangle = keyboardFrame.cgRectValue
let keyboardHeight = keyboardRectangle.height
self.view.transform = .identity
}
}