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我試過了，但無法正常工作。請爲此提供正確的解決方案。如何在swift 2中用作表格視圖背景的圖像上使用模糊效果？
我在viewDidload()裏面調用這個方法setGradientBackground()方法。
func setGradientBackground() {
self.myTableView.backgroundColor = UIColor.clearColor()
let image = UIImage(named: "r1")
let imageview = UIImageView(image: image)
imageview.frame = myTableView.bounds
imageview.makeBlurImage(imageview)
imageview.addSubview(myTableView)
}
extension UIImageView {
func makeBlurImage(targetImageView:UIImageView?){
let blurEffect = UIBlurEffect(style: UIBlurEffectStyle.ExtraLight)
let blurEffectView = UIVisualEffectView(effect: blurEffect)
blurEffectView.frame = targetImageView!.bounds
blurEffectView.autoresizingMask = [.FlexibleWidth,.FlexibleHeight]
targetImageView?.addSubview(blurEffectView)
}
}