我有以下功能使键盘不覆盖 TextView，但键盘显示不正确。相反，出现了一种没有键盘按键的全黑“键盘”。
func textViewDidBeginEditing(_ textView: UITextView) {
moveTextView(textView, moveDistance: -250, up: true)
}
func textViewDidEndEditing(_ textView: UITextView) {
moveTextView(textView, moveDistance: -250, up: false)
}
func textViewShouldReturn(_ textView: UITextView) -> Bool {
textView.resignFirstResponder()
return true
}
func moveTextView(_ textView: UITextView, moveDistance: Int, up: Bool) {
let moveDuration = 0.3
let movement: CGFloat = CGFloat(up ? moveDistance : -moveDistance)
UIView.beginAnimations("animateTextView", context: nil)
UIView.setAnimationBeginsFromCurrentState(true)
UIView.setAnimationDuration(moveDuration)
self.view.frame = self.view.frame.offsetBy(dx: 0, dy: movement)
UIView.commitAnimations()
}
有人知道为什么以及如何修复它吗？
感谢您的宝贵时间。
最佳答案
尝试换一种方式。将 UITextViewDelegate 添加到您的 viewController。在 viewDidLoad() 中添加这样的东西:
self.yourTextView1.delegate = self
self.yourTextView2.delegate = self
//For scrolling the view if keyboard on
NotificationCenter.default.addObserver(self, selector: #selector(YourViewController.keyboardWillShow), name: NSNotification.Name.UIKeyboardWillShow, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(YourViewController.keyboardWillHide), name: NSNotification.Name.UIKeyboardWillHide, object: nil)
并将其添加到您的 ViewController 中:
var keyBoardAlreadyShowed = false //using this to not let app to scroll view
//if we tapped UITextField and then another UITextField
func keyboardWillShow(notification: NSNotification) {
if !keyBoardAlreadyShowed {
self.view.frame.origin.y -= 50 // we will scroll on it
keyBoardAlreadyShowed = true
}
}
func keyboardWillHide(notification: NSNotification) {
self.view.frame.origin.y += 50
keyBoardAlreadyShowed = false
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
self.view.endEditing(true)
}
希望对你有帮助
关于swift - 键盘显示不正确，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42996044/