毛玻璃效果-UIView模糊效果✨

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  // 定义毛玻璃效果
    UIBlurEffect * blur = [UIBlurEffect effectWithStyle:UIBlurEffectStyleDark];
    UIVisualEffectView * effe = [[UIVisualEffectView alloc]initWithEffect:blur];
    effe.frame = CGRectMake(50, 90, self.view.frame.size.width - 100, 400);
    // 把要添加的视图加到毛玻璃上
    UIButton * but = [[UIButton alloc]initWithFrame:CGRectMake(50, 50, 100, 100)];
    but.backgroundColor = [UIColor redColor];
    [effe addSubview:but];
    [self.view addSubview:effe];
//他的效果是枚举，有三种
UIBlurEffectStyleExtraLight
UIBlurEffectStyleLight
UIBlurEffectStyleDark```


![](http://upload-images.jianshu.io/upload_images/838345-1ffaf7aac1128f77?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)

之后还有你想把你的图片模糊也可以这样添加：

```objc
    // 定义需要毛玻璃化的图片
    UIImageView * image = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"2.png"]];
    image.frame = CGRectMake(100, 100, 100, 100);
    
    // 定义毛玻璃效果
    UIBlurEffect * blur = [UIBlurEffect effectWithStyle:UIBlurEffectStyleDark];
    UIVisualEffectView * effe = [[UIVisualEffectView alloc]initWithEffect:blur];
    effe.frame = CGRectMake(50, 90, self.view.frame.size.width - 100, 400);
    // 添加毛玻璃
    [image addSubview:effe];
    [self.view addSubview:image];```