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.

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Answer 1

one way I've done it with an AdWhirlView, hide it below the screen, then animate it up;

AdWhirlView *adWhirlView = [AdWhirlView requestAdWhirlViewWithDelegate:self];
adWhirlView.delegate = self;
adWhirlView.frame = CGRectMake(0, 430+kAdWhirlViewHeight, kAdWhirlViewWidth, kAdWhirlViewHeight);
[self.parentViewController.view insertSubview:adWhirlView belowSubview:self.view];

[UIView beginAnimations:@"AdWhirlIn" context:nil];
[UIView setAnimationDuration:.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
adWhirlView.frame = CGRectMake(0, 430, kAdWhirlViewWidth, kAdWhirlViewHeight);
[UIView commitAnimations];