利用UIImageView实现动画特效

1. 首先查看下UIImageView 中一些比较关键的方法

// these allow a set of images to be animated. the array may contain multiple copies of the same

@property(nonatomic,copy)
NSArray *animationImages;            // The array must contain UIImages. Setting hides the single image. default is nil

@property(nonatomic,copy)
NSArray *highlightedAnimationImages __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0); 
          // The array must contain UIImages. Setting hides the single image. default is nil

@property(nonatomic) NSTimeInterval animationDuration;         // for one cycle of images. default
is number of images * 1/30th of a second (i.e. 30 fps)

@property(nonatomic) NSInteger      animationRepeatCount;     // 0 means infinite (default is 0)

- (void)startAnimating;

- (void)stopAnimating;

- (BOOL)isAnimating;

代码：

UIImageView* aView = [[UIImageViewalloc]initWithFrame:self.view.frame];

aView.animationImages = [NSArrayarrayWithObjects:

[UIImage imageNamed:@"a01.png"],

[UIImage imageNamed:@"a02.png"],

[UIImage imageNamed:@"a03.png"],

[UIImage imageNamed:@"a04.png"],

[UIImage imageNamed:@"a05.png"],

nil];

aView.animationDuration =1.75;

aView.animationRepeatCount = 0;   //设置循环的此时，0表示无限次

[aViewstartAnimating];  //开始动画特效