UIImageView，约束和模糊编程

问题描述：

我想创建一个模糊和约束的UIImageView。但模糊不想与约束一起工作。UIImageView，约束和模糊编程

我的代码：

var notifBackground: UIImageView! 
    notifBackground = UIImageView() 
    notifBackground.backgroundColor = UIColor.clear 
    view.addSubview(notifBackground) 

    notifBackground.translatesAutoresizingMaskIntoConstraints = false 
    notifBackground.widthAnchor.constraint(equalToConstant: 200).isActive = true 
    notifBackground.heightAnchor.constraint(equalToConstant: 200).isActive = true 
    notifBackground.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true 
    notifBackground.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true 

    let blur = UIVisualEffectView(effect: UIBlurEffect(style: UIBlurEffectStyle.regular)) 
    blur.frame = notifBackground.bounds 
    view.addSubview(blur)

答

在你模糊的边界设置为ImageView的同一范围时，布局限制尚未处理。你必须做的是设置相似的模糊限制。通过这样做，模糊会有类似的边界，并出现在imageview的顶部。

答

模糊效果

let blur = UIBlurEffect(style: UIBlurEffectStyle.regular) 
      let blurView = UIVisualEffectView(effect: blur) 
      blurView.frame = view.bounds 
      blurView.autoresizingMask = [.flexibleWidth, .flexibleHeight] 
      view.addSubview(blurView)

UIImageView，约束和模糊编程

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