ios 动画类型type

https://www.jianshu.com/p/cb437c3f3f58
ios动画进入后台停止

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(appDidEnterPlayground) name:UIApplicationDidBecomeActiveNotification object:nil];
}
-(void)appDidEnterPlayground{
    [self.heroBtn.layer removeAllAnimations];
     [self.heroBtn.layer addAnimation:[self groupAnimation] forKey:nil];
}

image的动画属性

    UIImage *image1 = [UIImage imageNamed:@"101"];
    UIImage *image2 = [UIImage imageNamed:@"102"];
UIImage *image3 = [UIImage imageNamed:@"103"];
    
UIImage *image4 = [UIImage imageNamed:@"104"];
    UIImage *image5 = [UIImage imageNamed:@"105"];
    UIImage *image6 = [UIImage imageNamed:@"106"];
    UIImage *image7 = [UIImage imageNamed:@"107"];
    UIImage *image8 = [UIImage imageNamed:@"108"];

    NSArray *images = [NSArray arrayWithObjects:image1,image2,image3,image4,image5,image6,image7,image8, nil];
//UIImageView *imageView = [[UIImageView alloc] initWithImage:image1];
  //  imageView.frame = CGRectMake(320/2-117/2, 150, 117, 120);
    _animationImag.animationImages = images;
    // 设置动画数组
_animationImag.animationDuration = 0.6f;
    // 动画播放时间
[_animationImag startAnimating];
    // 开始动画
//[self.view addsubviw animationimage];

  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        //停止
        [_animationImag stopAnimating];
   });