如果你想以编程方式使用swift这里是代码:
self.view.backgroundColor = UIColor(patternImage: UIImage(named: "yourImage.png"))
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或者您可以创建一个uiimage并将图像放入其中:
let yourImage = UIImage(named: "yourImage.png")
let imageview = UIImageView(image: yourImage)
self.view.addSubview(imageview)
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