Synchronizing Animations in keyboardWillShow keyboardWillHide — Hardware Keyboard & Virtual Keyboard Simultaneously

Question

Preamble

So I have an application featuring a chat section, and I\'m synchronizing the animation of the keyboard hiding and showing with the rise and fall of the

Answer 1

Since the animation curve Apple sends you in the keyboard notification does not have a corresponding UIViewAnimationOption bit, you need to drop down to old-school non-block animations and use the curve directly:

NSTimeInterval duration = [note.userInfo[UIKeyboardAnimationDurationUserInfoKey] doubleValue];
UIViewAnimationCurve curve = [note.userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue];
[UIView beginAnimations:@"SomeAnimationID" context:NULL];
[UIView setAnimationCurve:curve];
[UIView setAnimationDuration:duration];
// Animation code
[UIView commitAnimations];