@interface ViewController : UIViewController
{
    UIImageView *fishAni;
    UIButton *startAnimationBtn;
    UIButton *endAnimationBtn;
}
-(void) startAnimationBtnClick:(id)sender;
-(void) endAnimationBtnClick:(id)sender;
@end

@implementation ViewController

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Release any cached data, images, etc that aren't in use.
}

#pragma mark - View lifecycle

- (void)viewDidLoad
{
    [super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
     //创建一个按钮
    startAnimationBtn= [UIButton buttonWithType:UIButtonTypeRoundedRect ];
    startAnimationBtn.frame = CGRectMake(20,400, 40, 30);
       //startAnimationBtn  = [[UIButton alloc] initWithFrame:CGRectMake(20, 280, 40, 30)];
      [startAnimationBtn setTitle:@"Start" forState:UIControlStateNormal];
      [startAnimationBtn setTitleColor:[UIColor redColor] forState:UIControlStateSelected];
      [startAnimationBtn setTitleShadowColor:[UIColor greenColor] forState:UIControlStateNormal];
      [startAnimationBtn addTarget:self action:@selector(startAnimationBtnClick:) forControlEvents:UIControlEventTouchUpInside];
        
    //停止动画
    endAnimationBtn = [UIButton buttonWithType:UIButtonTypeInfoLight];
    endAnimationBtn.frame = CGRectMake(120, 280, 40, 30);
   // endAnimationBtn = [[UIButton alloc] initWithFrame:CGRectMake(120, 280, 40, 30)];
    [endAnimationBtn setTitle:@"End" forState:UIControlStateNormal];
    [endAnimationBtn setTitleColor:[UIColor redColor] forState:UIControlStateSelected];
    [endAnimationBtn setTitleShadowColor:[UIColor greenColor] forState:UIControlStateNormal];
    [endAnimationBtn addTarget:self action:@selector(endAnimationBtnClick:) forControlEvents:UIControlEventTouchUpInside];
    
    //制定ImageView的展示区域
     fishAni = [[UIImageView alloc] initWithFrame:[UIScreen mainScreen].bounds];
    //将制定的图片载入至 animationImages
    fishAni.animationImages = [NSArray arrayWithObjects:
                               [UIImage imageNamed:@"xiaomao1.jpg"],
                               [UIImage imageNamed:@"xiaomao2.jpg"],
                               [UIImage imageNamed:@"xiaomao3.jpg"],
                               [UIImage imageNamed:@"xiaomao4.jpg"],nil];
    
    //设定动画播放时间
    fishAni.animationDuration = 3.0;
    fishAni.animationRepeatCount = 0;
    fishAni.highlighted = YES;
    [fishAni startAnimating];
 
    [self.view addSubview:fishAni];
    [self.view addSubview:startAnimationBtn];
    [self.view addSubview:endAnimationBtn];
    
}

-(void) startAnimationBtnClick:(id)sender
{
    [fishAni startAnimating];

}

-(void) endAnimationBtnClick:(id)sender
{
    [fishAni stopAnimating];
    
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
}

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
}

- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}

- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

@end