Redrawing a UIView with a fade animation?

Question

In TwUI, there is a method called redraw on TUIView. It forces the view to redraw, but it also comes with a free fading animation between

Answer 1

Use +[UIView transitionWithView:duration:options:animations:completion:] with the UIViewAnimationOptionTransitionCrossDissolve option, and inside the animation block, force the view's layer to redraw its contents immediately.

[myView setNeedsDisplay];
[UIView transitionWithView:myView duration:1
    options:UIViewAnimationOptionTransitionCrossDissolve
    animations:^{
        [myView.layer displayIfNeeded];
    } completion:nil];