iPhone X keyboard appear showing extra space

Question

I have created a chat UI in which I have added a constraint for the tableView to the bottom of the screen. I am changing the constraint value by ad

Answer 1

My issue was that my view was in a child view controller. Converting the CGRect did the trick.

@objc private func keyboardWillChangeFrame(notification: NSNotification) {
    guard let userInfo = notification.userInfo, let endFrame = (userInfo[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue, let duration: TimeInterval = (userInfo[UIKeyboardAnimationDurationUserInfoKey] as? NSNumber)?.doubleValue else {
        return
    }

    let convertedFrame = view.convert(endFrame, from: nil)
    let endFrameY = endFrame.origin.y

    let animationCurveRawNSN = userInfo[UIKeyboardAnimationCurveUserInfoKey] as? NSNumber
    let animationCurveRaw = animationCurveRawNSN?.uintValue ?? UIViewAnimationOptions.curveEaseInOut.rawValue
    let animationCurve: UIViewAnimationOptions = UIViewAnimationOptions(rawValue: animationCurveRaw)

    if endFrameY >= UIScreen.main.bounds.size.height {
        inputContainerViewBottomLayoutConstraint.constant = 0.0
    }  else {
        var newHeight = view.bounds.size.height - convertedFrame.origin.y
        if #available(iOS 11.0, *) {
            newHeight = newHeight - view.safeAreaInsets.bottom
        }
        inputContainerViewBottomLayoutConstraint.constant = newHeight
    }

    UIView.animate(withDuration: duration, delay: TimeInterval(0), options: animationCurve, animations: {
        self.view.layoutIfNeeded()
    },completion: { _ in
        self.scrollView.scrollToBottom()
    })
}