UIView AnimateWithDuration可以快速处理

Question

 [UIView animateWithDuration:20.5
                          delay:0.0
                        options:UIViewAnimationOptionAutoreverse | UIViewAnimationOptionRepeat | UIViewAnimationOptionCurveEaseInOut
                     animations:^{
                         cloudA.frame = CGRectMake(cloudIMG.frame.size.width/2, 0, cloudIMG.frame.size.width, cloudIMG.frame.size.height);
                     }
                     completion:NULL];

I have this code, it works fine on the iPad (iOS 7.0), but on my iPhone (iOS 7.1) it handles the same animation within a second.

Answer 1

It is strange because this problem only appears on iOS 7.1, could this be a bug or something? Anyway, I found out that pausing the animation and start it again solved the problem. Because of that I added a delay to the animation function which was directly called from ViewDidLoad, and everything seems to work fine now.