UIView animateWithDuration doesn't animate cornerRadius variation

I'm trying to animate the change of the cornerRadius of a UIView instance layer, but the variation of the cornerRadius takes place immediately.

Here's the code:

UIView *view = [[UIView alloc] initWithFrame:CGRectMake(10, 10, 100, 100)];
view.layer.masksToBounds = YES;
view.layer.cornerRadius = 10.0;
[UIView animateWithDuration:1.0 animations:^{

    [view.layer.cornerRadius = 0.0;

}];

Thanks everybody who is going to give me any tips.

I managed to animate this property using Core Animation, using a CABasicAnimation.

CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"cornerRadius"];
animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
animation.fromValue = [NSNumber numberWithFloat:10.0f];
animation.toValue = [NSNumber numberWithFloat:0.0f];
animation.duration = 1.0;
[viewToAnimate.layer addAnimation:animation forKey:@"cornerRadius"];
[animation.layer setCornerRadius:0.0];