Question

我正在尝试在自定义alertView中插入tableview。我需要实现与默认警报相同的样式。从调试视图层次结构我几乎复制了样式，但我无法弄清楚Apple如何设置模糊效果。我的自定义提醒视图层次结构here

我试图以编程方式插入模糊视图，但结果太暗，太白或相同的透明度

    let blur = UIVisualEffectView(effect: UIBlurEffect(style: .all of them))
    blur.frame = self.alertView.frame
    blur.isUserInteractionEnabled = false
    self.view.insertSubview(blur, at: 1)

Answer 1

他们有几个不同的对话框，但这样的事情是一个很好的起点：

/// Composite view of blur + vibrancy + white bg color blending
/// which recreates the Apple alert dialog effect
lazy var dialogView: UIVisualEffectView = {
    let blur = UIBlurEffect(style: .regular)
    let blurView = UIVisualEffectView(effect: blur)
    let vibrancy = UIVibrancyEffect(blurEffect: blur)
    let vibrantView = UIVisualEffectView(effect: blurView.effect)
    vibrantView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
    blurView.contentView.addSubview(vibrantView)
    blurView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
    blurView.layer.cornerRadius = 20
    blurView.layer.masksToBounds = true
    let blendView = UIView()
    blendView.backgroundColor = .white
    blendView.alpha = 0.5
    blendView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
    blurView.contentView.addSubview(blendView)
    return blurView
}()

然后只需将其添加到您的视图和约束w / autolayout。

Answer 2

试试这段代码 -

{ "_id":1,
  "s_id":121211,
  "data_detail":{
      "name":"John",
      "phone_number":08089320xxx,
      "city":"ABC"
  }
}

希望这有帮助！

复制/重现UIAlertView模糊效果

2 个答案: