ios - iOS 有没有办法调整键盘高度？

Question

我想更改 iOS 中小数点键盘的高度。我得到默认键盘高度和小数点键盘的黑白高度差。

func resizeKeyboard(note: NSNotification){
    let userInfo = note.userInfo!
    let duration = userInfo[UIKeyboardAnimationDurationUserInfoKey] as! Double
    let curve = userInfo[UIKeyboardAnimationCurveUserInfoKey] as! UInt

    var frameEnd = self.view .convert(((userInfo[UIKeyboardFrameEndUserInfoKey] as! NSValue).cgRectValue), from: nil)

    if note.name == NSNotification.Name.UIKeyboardWillShow{
         Keyboard appears
         desiredHeight = 260
    }else if note.name == NSNotification.Name.UIKeyboardWillHide{
         Keyboard hides
         desiredHeight = 260
    }

    self.heightConstraint.constant = desiredHeight
    self.view .setNeedsLayout()

    UIView.animate(withDuration: duration, delay: 0, options: UIViewAnimationOptions(rawValue: curve), animations: {
        self.view .setNeedsLayout()
    }, completion: nil)
}

Answer 1

您无法更改系统键盘的高度，如 documentation说，这并不总是相同的:

You should always use the information in these notifications as opposed to assuming the keyboard is a particular size or in a particular location. The size of the keyboard is not guaranteed to be the same from one input method to another and may also change between different releases of iOS.

这意味着您的代码需要查看 UIKeyboardFrameEndUserInfoKey 来确定实际的键盘高度，并调整/滚动 UI 的其余部分以适应该高度。