Swift 3如何使背景图像填充整个UIView?

尝试此代码-

重复:

var img = UIImage(named: "bg.png")
view.backgroundColor = UIColor(patternImage: img!)

var img = UIImage(named: "bg.png")
view.layer.contents = img?.cgImage

希望有帮助!

试试这个

let backgroundImage = UIImageView(frame: UIScreen.main.bounds)
backgroundImage.image = UIImage(named: "RubberMat")
backgroundImage.contentMode =  UIViewContentMode.scaleAspectFill
self.view.insertSubview(backgroundImage, at: 0)

        myView?.contentMode = UIView.ContentMode.scaleToFill
        myView.layer.contents = UIImage(named:"bg.png")?.cgImage


         self.view.bringSubviewToFront(myView)

这对于查看背景图像很好

let backgroundImage = UIImageView(frame: UIScreen.main.bounds)
 backgroundImage.image = AppImageAssets.appAssets.appBackgroundImage()
 backgroundImage.contentMode =  UIView.ContentMode.scaleAspectFill
 self.view.insertSubview(backgroundImage, at: 0)