背景图像不加载在设备上

我有这个代码，将图像放在背景中，并应用模糊效果：

let effect = UIBlurEffect(style: .Dark) override func viewDidLoad() { let backgroundView = UIView(frame: view.bounds) backgroundView.autoresizingMask = resizingMask backgroundView.addSubview(self.buildImageView()) backgroundView.addSubview(self.buildBlurView()) tableView.backgroundColor = UIColor.clearColor() tableView.backgroundView = backgroundView tableView.separatorEffect = UIVibrancyEffect(forBlurEffect: effect) } func buildImageView() -> UIImageView { let imageView = UIImageView(image: UIImage(named: "pexels-photo")) imageView.frame = view.bounds imageView.autoresizingMask = resizingMask return imageView } func buildBlurView() -> UIVisualEffectView { let blurView = UIVisualEffectView(effect: effect) blurView.frame = view.bounds blurView.autoresizingMask = resizingMask return blurView } 

当我在模拟器中运行它加载罚款。 但是，当我在iPhone 6上testing它只是加载一个黑色的背景。

任何帮助如何解决这个问题，将不胜感激。

Answer 1

尝试下面的代码在Xcode 8testing它的工作。 代码作为UIViewtesting..

  **Answer 1:** From your code // Change bLurView Style to .dark or .extraLight If you want let effect = UIBlurEffect(style: .light) override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let backgroundView = UIView(frame: view.bounds) // backgroundView.autoresizingMask = resizingMask view.addSubview(self.buildImageView()) view.addSubview(self.buildBlurView()) /////Code tested in UIView not in tableView.It won't do any difference just let you know/////// tableView.backgroundColor = UIColor.clearColor() // tableView.backgroundView = backgroundView tableView.separatorEffect = UIVibrancyEffect(forBlurEffect: effect) ///////////////////////////////////////////////////////////////////// } func buildImageView() -> UIImageView { let imageView = UIImageView(image: UIImage(named: "pexels-photo")) imageView.frame = view.bounds // imageView.autoresizingMask = resizingMask return imageView } func buildBlurView() -> UIVisualEffectView { let blurView = UIVisualEffectView(effect: effect) blurView.frame = view.bounds // blurView.autoresizingMask = resizingMask return blurView } 

答案2：

  override func viewDidLoad() { super.viewDidLoad() // Add a background view to the table view let backgroundImage = UIImage(named: "your image file") let imageView = UIImageView(image: backgroundImage) self.tableView.backgroundView = imageView imageView.contentMode = .ScaleAspectFit // no lines where there aren't cells tableView.tableFooterView = UIView(frame: CGRectZero) //set background colour to light color or clear color to get a transparent look tableView.backgroundColor = .lightGrayColor() let blurEffect = UIBlurEffect(style: UIBlurEffectStyle.Light) let blurView = UIVisualEffectView(effect: blurEffect) blurView.frame = imageView.bounds imageView.addSubview(blurView) } If we want to make the table view cells totally transparent you can just set their background color to clear: override func tableView(tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAtIndexPath indexPath: NSIndexPath) { cell.backgroundColor = UIColor(white: 1, alpha: 0.5) // UIcolor.clear } 

输出上面的代码如下….