Animate UIView height from bottom to top

Question

I\'m doing a simple animation of UIView height so that it reveals.

By default it seems to be revealing from top to bottom, and I want it to reveal bottom to top.

<

Answer 1

Instead you could try putting it in a view with clipsToBounds = YES and then animate it from the bottom to the middle of the view, like so:

viewToAnimate.frame = CGRectMake(viewToAnimate.frame.origin.x,
                                 viewToAnimate.superview.frame.size.height,
                                 viewToAnimate.frame.size.width,
                                 viewToAnimate.frame.size.height);

[UIView animateWithDuration:0.5 animations:^{
     viewToAnimate.center = viewToAnimate.superview.center;
}];

This way, you don't have to set the height to 0, and it solves any problems with autoresizing within the view.