IOS开发-给UIImageView赋无限循环动画

NSMutableArray *animateArray = [NSMutableArrayarrayWithCapacity:10];   

 for (int i=1; i<5; i++) {       

 [animateArray addObject:[UIImageimageNamed:[NSStringstringWithFormat:@"%d.png",i]]];            }   

_imageView.animationDuration = 1.5f;   

 _imageView.animationImages = animateArray;    

_imageView.animationRepeatCount = 0;   

 [_imageViewstartAnimating];