ios - 我的应用程序上有一组背景图像。我怎样才能让它们以1秒的间隔自动改变？

Question

我的应用程序上有一组背景图像。如何让它们以 1 秒的间隔自动更改？

let myImagesArray = [UIImage(named:"1.png"),UIImage(named:"2.png"),UIImage(named:"3.png")

Answer 1

您可以使用animationImages。

//if you programmatically create your image view
let iv=UIImageView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: UIScreen.main.bounds.height))
view.addSubview(iv)

//assign your images to your image view
let myImagesArray=[UIImage(named:"1.png"),UIImage(named:"2.png"),UIImage(named:"3.png")]
iv.animationImages=myImagesArray
iv.animationDuration=1*myImagesArray.count
//to make it loop infinitely
iv.animationRepeatCount=0 
iv.startAnimating()