[SOLVED] Animating CALayer of UIView to round corners

Animating CALayer of UIView to round corners

I'm trying to animate the rounding of the corners of my view. The cornerRadius property is listed as animatible, but I can't seem to get it to work. I actually can't get any of the other properties to animate either, but the corners are what I'm interested in. Here's my code, and it's pretty darn simple:

[CATransaction begin];
[CATransaction setValue: [NSNumber numberWithFloat: 2.0f] forKey:kCATransactionAnimationDuration];

self.myView.layer.cornerRadius = 50.0f;

[CATransaction commit];

What am I missing here guys? The corners become rounded, but it's instantaneous instead of taking 2 seconds.

Solution

CABasicAnimation *anim1 = [CABasicAnimation animationWithKeyPath:@"cornerRadius"];
anim1.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
anim1.fromValue = [NSNumber numberWithFloat:0.0f];
anim1.toValue = [NSNumber numberWithFloat:50.0f];
anim1.duration = 2.0;
[self.myView.layer addAnimation:anim1 forKey:@"cornerRadius"];