UIImageview动画开始使用for-in循环和动画延迟

Question

我需要为UIimageview设置动画,当我开始动画时,它会在很长一段时间后发生,并且我发现在连续动画时某些图像视图的内存泄漏.我需要做的就是在滚动视图中有多个UI视图,每个视图都有一个自定义按钮.当选择该按钮时,会发生动画,如果用户点击按钮,动画将继续,动画将继续,并且不需要重新开始

这是我的代码

 for (int i=0; i<AlphabetArray.count; i++) {

    UIView *view=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 300, 200)];
    view.backgroundColor=[UIColor grayColor];
    view.tag=i+1;
    [self.scrollView addSubview:view];
     UIImageView *image=[[UIImageView alloc]initWithFrame:CGRectMake(200, 50, 400, 400)];


    [image setImage:[[animationArray objectAtIndex:i]objectAtIndex:0]];
    image.tag=i+1;
    [view addSubview:image];

    UIButton *animatebutton=[[UIButton alloc]initWithFrame:CGRectMake(200, 50, 336, 310)];
    animatebutton.tag=i+1;
    [animatebutton addTarget:self action:@selector(makeAnimation:) forControlEvents:UIControlEventTouchUpInside];
    //[animatebutton setImage:[UIImage imageNamed:@"NewtDance_mov_0.png"] forState:UIControlStateNormal];
    [view addSubview:animatebutton];
}

-(void)makeAnimation:(UIImageView *)sender {

UIView *tagView=(UIView *)[self.view viewWithTag:sender.tag];



for (UIImageView * imageview in [tagView subviews]) {

    NSLog(@"Yes %d",imageview.tag);


    if ([imageview isKindOfClass:[UIImageView class]]) {

        if ([imageview isAnimating]) {
            NSLog(@"Animation Happens");

        }

        else{
            imageview.animationDuration=3.0;

            imageview.animationImages=[animationArray objectAtIndex:sender.tag-1];
            imageview.animationRepeatCount=2;
            imageview.tag=sender.tag;
            [imageview startAnimating];
        }
    }

}



NSLog(@"OK");


}

使用此代码,我可以实现我的要求.但由于使用了for-in循环,动画开始很晚

Answer 1

处理这个的最好方法.使用UIImageView的animationImages财产.

1. NSMutableArray使用Image的UIImage对象创建对象.

2. 将Images数组设置为UIImageView animationImages属性
   [imageView setAnimationImages:imagesArray]

3. [imageView startAnimating] 开始动画.

4. [imageView stopAnimating]停止动画.
   查看文档以获取更多详细信息.

有关详细信息,请检查此项..