我想在没有用户触摸按钮的情况下连续显示不同的图像

Question

当用户触摸按钮时，下面的代码会显示图像。我想在没有用户触摸按钮的情况下连续显示不同的图像，例如“熊、猫、牛、狗”。任何人都可以帮助我。

NSMutableArray *dashBoy = [NSMutableArray array];
 for (i = 1; i<= 12; i++)
 {
    butterfly = [NSString stringWithFormat:@"bear_%d.png", i]; 
    if ((image = [UIImage imageNamed:butterfly]))
        [dashBoy addObject:image]; 
} 
[stgImageView setAnimationImages:dashBoy]; 
[stgImageView setAnimationDuration:4.0f];
[stgImageView setAnimationRepeatCount:2];
[stgImageView startAnimating];

Answer 1

你可以这样做：-

首先，创建一个 UIImageView 属性，如下所示，

@property (nonatomic,weak) IBOutlet UIImageView *imageView;    //Also connect it with storyboard or xib.

然后你可以写下IBAction如下：-

- (IBAction)startTap:(id)sender {
[self.imageView setAnimationDuration:1.0f];    //You could change the duration for making animation fast or slow.
[self.imageView setAnimationImages:imageArray];   //imageArray is NSArray of images of which you want to show slide show.
[self.imageView startAnimating];    //simply to start animation.
}

- (IBAction)stopTap:(id)sender {
[self.imageView stopAnimating];    //To stop animation.
}

Answer 2

试试这个.. 创建两个实例对象，如

NSMutableArray * imagesArray; 和 UIImageView *animationImageView;

 -(void)viewDidLoad
    {
        NSArray *imageNames = @[@"img1.png", @"img2.png", @"img3.png", @"img4.png",@"img5.png"];
        imagesArray = [[NSMutableArray alloc]init];
            NSMutableArray *images = [[NSMutableArray alloc] init];
            for (int i = 0; i < imageNames.count; i++) 
            {
                [imagesArray addObject:[UIImage imageNamed:[imageNames objectAtIndex:i]]];
            }
            animationImageView = [[UIImageView alloc] initWithFrame:CGRectMake(60, 95, 86, 193)];
            animationImageView.animationImages = imagesArray;
            animationImageView.animationDuration = 0.5; // set your own
            [self.view addSubview:animationImageView];
     }

并启动和停止两个UIButton 操作

-(IBAction)startAnimation:(UIButton*)sender
{
    [animationImageView startAnimating];
}
-(IBAction)stopAnimation:(UIButton*)sender
{
    [animationImageView stopAnimating];
}