UIImageView，約束和模糊編程

我想創建一個模糊和約束的UIImageView。但模糊不想與約束一起工作。UIImageView，約束和模糊編程

我的代碼：

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)

來源

2017-06-18 Sebastian

在你模糊的邊界設置爲ImageView的同一範圍時，佈局限制尚未處理。你必須做的是設置相似的模糊限制。通過這樣做，模糊會有類似的邊界，並出現在imageview的頂部。

來源

2017-06-18 02:17:48 andrehungaro

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)

來源

2017-06-19 04:44:19

UIImageView，約束和模糊編程

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