I use the UIKeyboardWillChangeFrameNotification for changing my views when the keyboard is shown.
To animate along with the keyboard, I use the NSNotification's user info dictionary to get the duration of the animation, with the UIKeyboardAnimationDurationUserInfoKey key.
This works for when the keyboard is shown and hidden. But not when its frame changes while it's already showing, e.g. when the QuickType bar is shown/hidden.
Anyone knows why this is the case? And how I should resolve this problem?