在swift中为背景添加模糊效果 [英] Adding blur effect to background in swift

问题描述

我正在设置背景图像来查看控制器。但我也想在这个背景下添加模糊效果。我该怎么做？

I am setting a background image to view controller. But also i want to add blur effect to this background. How can I do this?

我用以下代码设置背景：

I am setting background with following code:

self.view.backgroundColor = UIColor(patternImage: UIImage(named: "testBg")!)

<我在互联网上找到模糊imageview如何实现这个到我的背景？

I found on internet for blur imageview how can i implement this to my background?

var darkBlur = UIBlurEffect(style: UIBlurEffectStyle.Dark)
// 2
var blurView = UIVisualEffectView(effect: darkBlur)
blurView.frame = imageView.bounds
// 3
imageView.addSubview(blurView)

推荐答案

我已经测试了这段代码并且工作正常：

I have tested this code and it's working fine:

let blurEffect = UIBlurEffect(style: UIBlurEffectStyle.Dark)
let blurEffectView = UIVisualEffectView(effect: blurEffect)
blurEffectView.frame = view.bounds
blurEffectView.autoresizingMask = [.FlexibleWidth, .FlexibleHeight]
view.addSubview(blurEffectView)

对于Sw ift 3.0：

For Swift 3.0:

let blurEffect = UIBlurEffect(style: UIBlurEffectStyle.dark)
let blurEffectView = UIVisualEffectView(effect: blurEffect)
blurEffectView.frame = view.bounds
blurEffectView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
view.addSubview(blurEffectView)

在这里你可以看到结果：

Here you can see result:

或者您可以使用此库：

https://github.com/FlexMonkey/Blurable

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