在uiimageview中制作动画图像

Question

如何为来自Web服务的图像设置动画。我得到了代码来动画来自bundle的图像。如何从url加载图像

该代码附于

之下

UIImageView* animatedImageView = [[UIImageView alloc] initWithFrame:self.view.bounds];
animatedImageView.animationImages = [NSArray arrayWithObjects:    
                               [UIImage imageNamed:@"image1.gif"],
                               [UIImage imageNamed:@"image2.gif"],
                               [UIImage imageNamed:@"image3.gif"],
                               [UIImage imageNamed:@"image4.gif"], nil];
animatedImageView.animationDuration = 1.0f;
animatedImageView.animationRepeatCount = 0;
[animatedImageView startAnimating];
[self.view addSubview: animatedImageView];

Answer 1

从网络服务下载图片：

NSData *imageData = [NSData dataWithContentsOfURL:"*Url from web service*"];
UIImage *imageOne = [UIImage imageWithData:imageData];

可能从Web服务下载所有图像并创建如下数组：

NSArray *imagesArray = [NSArray arrayWithObjects:imageOne...........,nil];

并使用少许修改：

UIImageView* animatedImageView = [[UIImageView alloc] initWithFrame:self.view.bounds];
animatedImageView.animationImages = imagesArray;
animatedImageView.animationDuration = 1.0f;
animatedImageView.animationRepeatCount = 0;
[animatedImageView startAnimating];
[self.view addSubview: animatedImageView];

Answer 2

夫特

假设通过故事板添加imageView

初始化数组：

self.imageArray = [UIImage(named:"Download_060.png")!,UIImage(named:"Download_061.png")!,UIImage(named:"Download_062.png")!,
                       UIImage(named:"Download_063.png")!,UIImage(named:"Download_064.png")!,UIImage(named:"Download_065.png")!,
                       UIImage(named:"Download_066.png")!,UIImage(named:"Download_067.png")!]

添加代码以按钮操作或根据需要设置动画

 self.imgView.animationImages = self.imageArray
        self.imgView.animationDuration = 1.0
        self.imgView.animationRepeatCount = 0
        self.imgView.startAnimating()

停止动画

self.imgView.animationRepeatCount = 1 // IF Require once set this 1, 0 == infinite 

或

self.imgView.stopAnimating()

Answer 3

获得了完美的动画代码 可以在swift4中自动更改图像视图中的图像

class ViewController: UIViewController {

var imgarray = [UIImage(named:"f1.png")!, 
                UIImage(named:"f2.png")!, 
                UIImage(named:"f3.png")!,  
                UIImage(named:"f4.png")!,
                UIImage(named:"f5.png")!, 
                UIImage(named:"index1.png")!,
                UIImage(named:"index2.png")!, 
                UIImage(named:"index3.png")!]

@IBOutlet weak var imgview: UIImageView!
override func viewDidLoad() {
    super.viewDidLoad()

    self.imgview.animationImages = imgarray
    self.imgview.animationDuration = 10.0
    self.imgview.animationRepeatCount = 0
    self.imgview.startAnimating()
    }
}