我試圖在鍵盤出現時向上移動視圖，在鍵盤隱藏時向下移動 .

我遇到的問題是高度似乎不同：KBH1輸出216，KBH2輸出260 .

這導致視圖向下移動得比最初移動的距離更遠 .

我該如何糾正這個？

extension UIViewController {

func addKeyboardFunctions() {

let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(dismissKeyboardEx))

// tap.cancelsTouchesInView = false

view.addGestureRecognizer(tap)

NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillDisappear), name: Notification.Name.UIKeyboardWillHide, object: nil)

NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillAppear), name: Notification.Name.UIKeyboardWillShow, object: nil)

}

@objc func keyboardWillAppear(_ 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

print("KBH: \(keyboardSize.height)")

}

}

}

@objc func keyboardWillDisappear(_ 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

print("KBH: \(keyboardSize.height)")

}

}

}

總結

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